HomeMy WebLinkAboutStaff Report 4.A 09/17/2018DATE: September 17, 2018
TO: Honorable Mayor and Members of the City Council through City Manager
FROM: Dans Jo , ASCE — Director, Public Works and Utilities
Leah Walker, P.E. — Environmental Services Manager
SUBJECT: Resolution to Approve City of Petaluma Projects Identified in the North Bay
Water Reuse Program Phase 2 Final Environmental Impact Report/Environmental
Impact Statement, and Make Certain Findings Therewith
RECOMMENDATION
It is recommended that the City Council adopt a Resolution to Approve City of Petaluma
Projects Identified in the North Bay Water Reuse Program Phase 2 Final Environmental Impact
Report/Environmental Impact Statement (EIR/EIS) and Make Certain Findings Therewith.
BACKGROUND
The North Bay Water Reuse Authority (NBWRA) was created in 2005 to coordinate interagency
efforts to promote the use of recycled water on a regional basis. The stated purpose of the
NBWRA is to secure federal funding on a regional basis to provide recycled water for
agricultural, urban, and environmental uses thereby reducing reliance on local and imported
surface water and groundwater supplies and reducing the amount of treated effluent released to
San Pablo Bay and its tributaries.
The NBWRA is comprised of 11 wastewater and potable water utilities as Member Agencies,
including Sonoma County Water Agency (Water Agency), Sonoma Valley County Sanitation
District, Napa Sanitation District, Napa County, North Marin Water District, Novato Sanitary
District, Las Gallinas Valley Sanitary District, Marin Municipal Water District, the City of
American Canyon, and the City of Petaluma. The Water Agency Board of Directors acts as the
administrative agency for the Authority and is the Lead Agency under the California
Environmental Quality Act (CEQA). As a member agency of the NBWRA, the City is a
Responsible Agency under CEQA.
On December 8, 2009, the Board of Directors of the Water Agency, acting as the administrative
agency for the Authority and as the Lead Agency under the CEQA, certified the Final
Environmental Impact Report prepared for the North San Pablo Bay Restoration and Reuse
Project (Phase 1 Project). The U.S. Department of the Interior's Bureau of Reclamation
(Reclamation) was the Lead Agency under the National Environmental Policy Act (NEPA) and
filed a Record of Decision for the Final Environmental Impact Statement on January 28, 2011.
The recycled water distribution projects implemented under Phase 1 are largely complete. Phase
I projects cost approximately $104 million; of that amount $25 million in funding was received
from federal sources, including Reclamation's Water SMART and Title XVI grants and
American Recovery and Reinvestment Act funding, as well as $4.8 million from the California
Department of Water Resources' Integrated Regional Water Management grant program. The
remainder was funded by the Member Agencies.
The objectives of Phase 2 Program are to promote the expanded beneficial use of recycled water
and integrated water management in the North Bay region to improve local, regional, and state
water supply reliability; offset demands on potable water supplies; address impaired groundwater
basins; enhance local and regional ecosystems; maintain and protect public health and safety;
promote sustainable practices; and implement integrated water management in an economically
viable manner. The Phase 2 Program area extends approximately 10 to 15 miles inland from the
San Pablo Bay within Marin, Sonoma, and Napa counties. The area extends as far south as San
Quentin in Marin County, as far north as El Verano and including Petaluma in Sonoma County,
and includes the cities of Napa and American Canyon in Napa County.
The City's Recycled Water Expansion Program is consistent with the NBWRA objectives. The
City Council authorized membership in the NBWRA Memorandum of Understanding (MOU) in
2011. On May 6, 2013, City Council authorized the City Manager to execute the NBWRA Third
Amended MOU authorizing the City to participate in Phase 2 of the program to generate grant
funding to further its recycled water expansion program. On September 11, 2017, City Council
authorized the City Manager to execute the NBWRA Fourth Amended MOU to address the
distribution of joint use costs and the Phase 2 consultant fees for the feasibility study and
environmental analysis to its members.
The City of Petaluma's Recycled Water Expansion Program improvements are included in the
NBWRA Phase 2 program list. The City's proposed projects will increase the daily -recycled
water production capacity, expand purple -pipe distribution within City limits, and extend
distribution for agricultural properties near the City.
The proposed action meets Council goal: "Design and deliver cost-effective energy and other
resource savings projects for City facilities and infrastructure."
DISCUSSION
NBWRA Phase 2 Program projects evaluated at the project -level for the City include: increased
tertiary capacity at the Ellis Creek Water Recycling Facility, an expansion of the urban recycled
water distribution system, and agricultural recycled water expansion. Other agencies with
projects in Phase 2 include Sonoma Valley Sanitation District; Novato Sanitation District; Marin
Municipal Water District; Napa Sanitation District's expansion of its water recycling facility;
and the City of American Canyon. Additional Phase 2 Program conceptual projects were
evaluated at a programmatic level of analysis and are not proposed for implementation under the
Phase 2 Program but promote integrated water management and will be further evaluated for
implementation if needed in the future, as additional design and funding become available.
The Water Agency contracted with Environmental Science Associates, as sub -consultant to
Brown & Caldwell, to prepare a joint EIR/EIS to evaluate potential environmental impacts of the
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Phase 2 Program in accordance with CEQA, the State CEQA Guidelines, the Water Agency's
Procedures for the Implementation of CEQA, NEPA, and Reclamation's NEPA Handbook. A
Notice of Preparation was circulated for a 30 -day public review period from July 19 through
August 21, 2017. Scoping meetings were held during the review period on: August 2 in San
Rafael; August 3 in American Canyon; August 9 in Petaluma; and August 10 in Sonoma.
The Draft EIR/EIS was circulated for a 45 -day public review period from April 4 through May
18, 2018. During this time, four public hearings were held to provide interested persons with an
opportunity to comment verbally or in writing on the Phase 2 Program and the Draft EIR/EIS.
The public hearings were held: May 7 in American Canyon; May 9 in San Rafael; May 10 in
Petaluma; and May 14 in Sonoma. No oral comments were received at any of the public
hearings. A notice of availability for the Draft EIR/EIS was sent to approximately 635 agencies
and individuals, published in local and regional newspapers, and posted on the Water Agency's
and NBWRA's websites. The Draft EIR/EIS was made available for review at the Water
Agency's administrative office, Member Agencies' offices, and at regional libraries in the
project area, and an electronic version of the document was made available on the Water
Agency's and NBWRA's websites. A Notice of Completion was mailed, along with 15
electronic copies of the Draft EIR/EIS, to the State Clearinghouse.
Written comments were received from four entities during the public review period. The
comments focused on concerns regarding construction on or near State roadway facilities,
potential for effects to geothermal reservoirs in the Sonoma Valley, the Phase 2 Program's
relation to water quality objectives, and the potential for elements to exacerbate flooding or
flooding risk.
The Final EIR/EIS includes revisions, updates, and clarifications in response to comments
received during the Draft EIR/EIS review period. The Final EIR/EIS does not include
information regarding new significant impacts, alternatives, or mitigation measures that are
considerably different from others previously analyzed, nor does any new information provided
in the Final EIR/EIS constitute "significant new information" within the meaning of CEQA as to
require recirculation. The Final EIR/EIS was distributed on August 3, 2018 and has been made
available for the minimum 10 -day review period required by CEQA. The Final EIR/EIS is
available at the Water Agency's administrative office, Member Agencies' offices, and at regional
libraries in the project area, and an electronic version of the document is available on the Water
Agency's and Authority's websites. Reclamation has not yet completed the public review
requirements under NEPA or a Record of Decision.
On August 14, 2018, the Water Agency Board, acting as the administrative agency for the
Authority and as the Lead Agency under CEQA, certified the Final Environmental Impact
Report in accordance with CEQA, the State CEQA guidelines, and the Water Agency's
Procedures for the Implementation of CEQA, and made certain findings in connection therewith.
Certifying the document under CEQA allows participating Member Agencies to rely on the Final
EIR/EIS for project implementation and for funding opportunities through the Reclamation's
Title XVI Program.
The Final EIR/EIS discloses potentially significant impacts that would be reduced to a less -than -
significant level through implementation of mitigation measures identified in the following
areas: Surface Hydrology, Groundwater Resources, Water Quality, Biological Resources,
Transportation and Traffic, Air Quality, Noise, Hazards and Hazardous Materials, Public
Services and Utilities, Cultural Resources and Tribal Cultural Resources, Recreation, Aesthetics,
Energy Conservation, and Cumulative Impacts, Growth Inducement, and Secondary Effects of
Growth. The document discloses potentially significant and unavoidable impacts related to
Growth for Member Agencies implementing projects under the Proposed Project, including the
City.
PROJECT APPROVAL
The City is the responsible entity for implementing and constructing the following projects:
Increase Ellis Creek Water Recycling Facility Capacity, Urban Recycled Water Expansion, and
Agricultural Recycled Water Expansion Program (Phases 1 and 2) included as part of the Phase
2 Program.
The Final EIR/EIS discloses that the Phase 2 Program would provide recycled water for urban,
agricultural, and environmental uses, and as such, would contribute to the provision of adequate
water supply to support a level of growth that is consistent with the amount planned and
approved within the General Plans for Sonoma, Marin, and Napa counties. As described in the
Draft EIR/EIS, no appreciable growth in population or employment would occur as a direct
result of the City's projects under the Phase 2 Program, however the provision of recycled water
within its service area under the Phase 2 Program, while consistent with water supply planning in
the service area, would enable growth to occur, and as such could contribute to secondary effects
of growth associated with buildout under the approved General Plans of the City of Petaluma the
Sonoma County. The secondary effects to the environment are identified in the City of Petaluma
General Plan Environmental Impact Report and the Sonoma County General Plan Environmental
Impact Report and are summarized in the Phase 2 Program Draft EIR/EIS.
Notwithstanding the impact, it is recommended that the City approve the Phase 2 Program and
the City's Phase 2 projects (Increase Ellis Creek Water Recycling Facility Capacity, Urban
Recycled Water Expansion, and Agricultural Recycled Water Expansion Program (Phases 1 and
2)) , for the reasons set forth in the proposed Statement of Overriding Consideration. These
overriding considerations include:
A. Implementation of the Proposed Project would provide potable offset of urban and
agricultural demands on potable supplies, including surface and groundwater supplies.
B. Implementation of the Proposed Project would reduce the amount of treated effluent
discharged to North San Pablo Bay.
C. Implementation of the Proposed Project would be consistent with State and local policies
regarding the implementation of recycled water to provide potable water supply offset.
D. Implementation of the Proposed Project would be consistent with recycled water polices
identified in approved General Plans within the proposed service area.
E. Implementation of the Proposed Project would reduce groundwater depletion by providing
an alternative source of water for irrigation. Reducing groundwater depletion will benefit
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other users of area water, and help ensure the long-term viability of existing agricultural,
residential, open space, and other uses in the Project area.
F. Implementation of the Proposed Project would reduce peak demand for water in the summer
months. Reducing peak demand will benefit other users of water in the summer months,
including threatened and endangered species.
G. The Proposed Project would be implemented under Reclamation's Title XVI program,
which provides funding for recycled water programs that have demonstrated regional
coordination and provide multiple benefits.
It is recommended that the City, acting as a Responsible Agency under CEQA, adopt a
resolution approving projects under its jurisdiction identified in the North Bay Water Reuse
Program Phase 2 Final EIR/EIS, adopt mitigation measures and a Mitigation Monitoring and
Reporting Plan/Program, adopt a Statement of Overriding Considerations, making certain related
findings, and authorize the filing of a Notice of Determination.
FINANCIAL IMPACTS
Fiscal impacts of individual projects will be addressed as those projects are implemented. The
preliminary 2019 annual budget for the recycled water program within the wastewater enterprise
fund is $1,106,922 and will cover the costs of treatment, pumping, pump and pipe repairs,
maintenance, customer service, metering, and billing.
ATTACHMENTS
1. Resolution to Approve City of Petaluma Projects Identified in the North Bay Water Reuse
Program Phase 2 Final Environmental Impact Report/Environmental Impact Statement, and
Make Certain Findings Therewith
2. Exhibit A to Resolution: Mitigation Monitoring and Reporting Plan/Program
® Items listed below are large in volume and are not attached to this report but may be viewed in the
City Clerk's office.
— North Bay Water Reuse Program Phase 2 Draft EIR/EIS
— Final Environmental Impact Report/Environmental Impact Statement North Bay Water
Reuse Program - Phase 2
Attachment 1
RESOLUTION TO APPROVE CITY OF PETALUMA PROJECTS IDENTIFIED IN
THE NORTH BAY WATER REUSE PROGRAM PHASE 2 FINAL ENVIRONMENTAL
IMPACT REPORT/ENVIRONMENTAL IMPACT STATEMENT, AND MAKE
CERTAIN FINDINGS THEREWITH
WHEREAS, the City of Petaluma General Plan 2025 recognizes the use of recycled
water as a potable water offset and to meet regulatory requirements for wastewater discharge;
and
WHEREAS, the City of Petaluma desires to expand its recycled water system to reduce
wastewater discharges and provide additional recycled water for agricultural uses; and
WHEREAS, the City of Petaluma (City) wishes to expand the beneficial use of recycled
water in its service area and to work cooperatively with other agencies within the North Bay
region, including Marin and Napa counties, to promote the expanded beneficial use of recycled
water and integrated water management in the North Bay region; and
WHEREAS, the City is a Member Agency of the North Bay Water Reuse Authority
(Authority), which has been formed to promote the use of recycled water within the region; and
WHEREAS, the City has participated in the development and preparation of the North
Bay Water Reuse Program Phase 2 Feasibility Study, which has incorporated projects identified
by the City, for distribution of recycled water to reduce demands on potable supplies, referred to
as the Increase Ellis Creek Water Reclamation Facility Project, the Urban Recycled Water
Expansion Project, and the Agricultural Recycled Water Expansion Program (Phases 1 and 2),
and shown in Draft Environmental Impact Report/Environmental Impact Statement
(Report/Statement) Figures 2-10 through 2-12; and
WHEREAS, as provided for in California Environmental Quality Act (CEQA)
Guidelines Section 15050, the Sonoma County Water Agency (Water Agency) is the CEQA
Lead Agency for the preparation and circulation of the Report/Statement for the North Bay
Water Reuse Program Phase 2 (Phase 2 Program, SCH# 2017072051); and
WHEREAS, as provided for in CEQA Guidelines Section 15096, the City is a
Responsible Agency, and will consider the Report/Statement prior to reaching a decision on
projects within its jurisdiction that have been included in the Phase 2 Program; and
WHEREAS, the U.S. Department of Interior, Bureau of Reclamation (Reclamation) and
the Authority's Member Agencies prepared a Draft Environmental Impact Report/Environmental
Impact Statement for the proposed North Bay Water Reuse Program Phase 2 (Phase 2 Program).
The document is a joint Environmental Impact Report/Environmental Impact Statement
(Report/Statement) and was prepared in accordance with the National Environmental Policy Act
(NEPA), Reclamation's NEPA Handbook, CEQA, the State CEQA Guidelines, and the Water
Agency's Procedures for the Implementation of CEQA; and
Con
WHEREAS, in response to comments received on the Draft Report/Statement, a Final
Report/Statement has been prepared for the proposed Phase 2 Program, and the review process
has been satisfactorily completed as more fully described below; and
WHEREAS, on August 14, 2018, the Water Agency, as CEQA Lead Agency, certified
that the Final Report/Statement has been: completed in compliance with CEQA, the State CEQA
Guidelines, and the Water Agency's Procedures for the Implementation of CEQA; was presented
to the decision making body of the Lead Agency, and that the decision making body reviewed
and considered the information contained in the Report/Statement; and that the Final
Report/Statement reflects the Lead Agency's independent judgment and analysis.
NOW, THEREFORE, BE IT RESOLVED the City Council of the City of Petaluma
hereby finds that the foregoing recitals are true and correct and further finds, declares,
determines and orders as follows:
PROCEDURAL FINDINGS.
The Phase 2 Program area extends approximately 10 to 15 miles inland from San Pablo Bay
within Marin, Sonoma, and Napa counties. Figure 2-3 in Chapter 2, Project Description, of
the Draft Report/Statement shows the area of the Phase 2 Program. The Authority's Member
Agencies collectively prioritized the projects within their individual service areas to
participate in the Phase 2 Program. These are projects that each Member Agency has defined
to a level of detail that allows for project -level environmental review and are collectively
referred to as the Phase 2 Program. Phase 2 Program projects evaluated at the project -level
includes in the District's in the City's service area, increased capacity at the Ellis Creek
Water Recycling Facility, an expansion of the urban recycled water distribution system, and
agricultural recycled water expansion. The Phase 2 Program also includes projects from other
Member Agencies, including the Novato Sanitary District, Marin Municipal Water, Napa
Sanitation District, Sonoma Valley County Sanitation District, and the City of American
Canyon.
Collectively, the Phase 2 Program would provide 4,885 acre-feet of new recycled water for
beneficial use and would include: installation of 19.8 miles of new pipelines; construction of
facilities onsite at the existing wastewater treatment plants to provide an additional 4.87
million gallons per day of tertiary treatment capacity; and development of approximately
10.1 acre-feet of storage, primarily for agricultural use. The City's Increase Ellis Creek
Water Recycling Facility (Ellis Creek WRF) Capacity Project would include facility
upgrades at the existing Ellis Creek WRF to increase its tertiary filtration and disinfection
capacity (Draft Report/Statement Figure 2-10, Appendix A). Proposed facilities would
provide 2.12 million gallons per day (mgd) of new tertiary filtration capacity and a project
yield of 712 mgd of recycled water based on an annual average production of 0.64 mgd. The
Urban Recycled Water Expansion Project would construct approximately 8.0 miles of
recycled water pipelines throughout the eastern portion of the city extending from the end of
the existing 20 -inch -diameter pipeline that originates from the Ellis Creek WRF to serve
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customers currently being served by its potable water system (Draft Report/Statement Figure
2 11, Appendix A). It would also extend a pipeline from the existing 8 -inch -diameter pipeline
near Ellis Creek WRF to serve the Oalcmead Business Park. The Agricultural Recycled
Water Expansion Program would extend recycled water pipelines from the Ellis Creek WRY
eastward to serve agricultural customers along Lakeville Highway (Draft Report/Statement
Figure 2-12, Appendix A).
2. As described in the Draft Report/Statement Section 1.1.1, Purpose and Need of the Proposed
Action, the objectives of the Phase 2 Program are to promote the expanded beneficial use of
recycled water and integrated water management in the North Bay region to offset demands
on potable supplies; enhance local and regional ecosystems; improve local, regional, and
State water supply reliability; maintain and protect public health and safety; promote
sustainable practices; support the sustainable management of groundwater basins; and
implement recycled water facilities in an economically viable manner.
3. On July 19, 2017, the General Manager of the Water Agency circulated a Notice of
Preparation (NOP) of an Environmental Impact Report to be mailed to local, state, and
federal agencies, and to other interested parties. The NOP was submitted to the State
Clearinghouse and was available online. The NOP was directly mailed to 237 parties and a
postcard notification of the NOP's availability was sent to 425 parties. The NOP was
circulated for a 30 -day public review period, which ended on August 21, 2017. The project
description for the NOP was based on the North Bay Water Reuse Program Phase 2
Feasibility Study completed in June 2017. No Initial Study was prepared as Lead Agency
staff decided in advance that a full Report/Statement would be required for this project.
4. The July 2017 NOP also included notice for four scoping meetings on August 2, 2017, in San
Rafael; August 3, 2017, in American Canyon; August 9, 2017, in Petaluma, and August 10,
2017, in Sonoma. The purpose of the scoping meetings was to give the public an opportunity
to make comments and suggestions on the scope of the Report/Statement.
5. On April 4, 2018, approximately 20 hard copies and/or compact discs of the Draft
Report/Statement, along with Notices of Availability, were sent to: responsible and trustee
agencies, Member Agencies, and nine regional libraries. In addition, Notices of Availability
were published in six newspapers of general circulation, posted on the Water Agency's and
Authority's websites, and Notices of Availability and/or postcard notices were sent to
approximately 635 interested agencies and residents located within the project area identified
in the Draft Report/Statement, and to individuals who requested to be on the mailing list for
the project. The Draft Report/Statement was made available for review at the Water
Agency's administrative office, Member Agencies' offices, and at regional libraries in the
project area, and an electronic version of the document was made available on the Water
Agency's and Authority's websites. A Notice of Completion was mailed, along with 15
electronic copies of the Draft Report/Statement, to the State Clearinghouse.
6. The Draft Report/Statement was circulated for a 45 -day public review period from April 4
through May 18, 2018. On May 7, 2018, in American Canyon; May 9, 2018, in San Rafael;
May 10, 2018, in Petaluma; and May 14, 2018, in Sonoma, public hearings were held to
receive comments on the Draft Report/Statement and on the proposed project. No members
of the public provided comment and each public hearing was closed.
7. After the end of the public review period for the Draft Report/Statement, written comments
from approximately four entities were reviewed, and responses to comments were prepared.
The Response to Comments document together with the Draft Report/Statement constitutes
the Final Report/Statement.
8. The Final Report/Statement includes revisions, updates, and clarifications in response to
agency comment on the Draft Report/Statement. The revisions, updates, and clarifications
made for the Final Report/Statement do not include disclosures of. 1) any new significant
impact from the project; 2) a substantial unmitigated increase in the severity of any impact;
or 3) a feasible alternative or mitigation measure considerably different from others
previously analyzed that would clearly lessen project impacts, but that the City does not
propose to adopt. The new information provided in the Final Report/Statement does not
constitute "significant new information" within the meaning of CEQA so as to require
recirculation of the Final Report/Statement.
9. The Final Report/Statement was distributed on August 3, 2018 and was available for the
minimum 10 -day review period required by CEQA. The Final Report/Statement is available
at the Water Agency's administrative office, Member Agencies' offices, and at regional
libraries in the project area, and an electronic version of the document is available on the
Water Agency's and Authority's websites.
SUBSTANTIVE FINDINGS.
1. Pursuant to CEQA Guidelines Section 15096, the City Council has reviewed and considered
the information contained in the Final Report/Statement for the Phase 2 Program and
considered the environmental effects of the Project as shown in the Final Report/Statement.
2. Less than Significant Impacts
2.01. The Council finds that the City's Projects described in the Phase 2 Program
Report/Statement have certain impacts that are less than significant or are beneficial,
which are fully and accurately identified in the Draft Report/Statement Chapter 3,
Environmental Consequences, Chapter 4, Cumulative Impacts, and Chapter 5,
Growth Inducement and Secondary Effects of Growth.
Significant Impacts Reduced to a Less than Significant Level by Mitigation Measures
3.01. The Council finds that the Phase 2 Program would cause certain significant or
potentially significant adverse environmental impacts, which are fully and accurately
summarized in Draft Report/Statement Chapter 3. The Council further finds that there
are impacts, and corresponding mitigation measures as described in Draft
Report/Statement Chapters 3 and 4, disclosed that fall outside its jurisdiction, and are
the responsibility of another agency and should be adopted by such agency and not
the City.
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3.02. The Council finds that the City's Projects described in the Phase 2 Program
Report/Statement would cause certain significant or potentially significant adverse
environmental impacts, which are more fully described in the Final Report/Statement.
The Council further finds that changes or alterations have been required in or
incorporated into the City's Projects that will mitigate those impacts to less -than -
significant levels as described in Draft Report/Statement Chapters 3 and 4. Based on
such findings, and the above statement of facts, the Council hereby finds that most of
the significant or potentially significant adverse environmental effects posed by the
City's Projects have been eliminated or reduced to a less -than -significant level. An
explanation of the rationale for each finding is presented below.
A. Impacts and Mitigation Measures
1. Surface Hydrology
a) Impact 3.3.1: Project construction and operation could alter the existing drainage
patterns in a manner that would result in substantial erosion, siltation, or f ooding on- or off-
site.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.5.1: APDES Construction Activity Stormwater Permit. Refer to
Impact 3.5.1 in Water Quality.
Mitigation Measure 3.3.1 a: Stream and Drainage Crossings. The Member Agencies shall
implement the following measure during pipeline installation at stream or drainage
crossings:
1. Schedule construction during the dry season and so as to avoid storm events to the
extent feasible, or as required by regulatory permits (approximately June 15 to
October 15);
2. Pipelines suspended fi°om bridges shall be designed such that they do not interfere
with conveyance of f ows beneath the bridge, as determined by a licensed professional
engineer;
3. At in -road drainage crossings where drainages pass beneath the road in existing
culverts, and where there is sufficient cover between the culvert and road sui face, the
new pipeline will be installed above the existing culvert without removing or
disturbing it. If the pipeline must be installed below the existing culvert, then the
culvert will be cut and temporarily removed to allow pipeline installation.
4. If disturbance of the existing culvert is required, sediment curtains upstreamm and
downstream of the construction zone shall be placed to prevent sediment disturbed
during trenching activities ftom being transported and deposited outside of the
construction zone.
5. Employ short-term drainage diversion and control measures such as sandbags, dikes,
pumps, or other means; and
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6. Following construction, restore the construction area to pre-existing conditions.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with California Environmental Quality Act Guidelines
Section 15901(a)(1), that changes, or alterations have been required in, or incorporated
into, the project which avoid or substantially lessen the significant environmental effect
as identified in the Final Report/Statement.
Rationale: As discussed in the Draft Report/Statement, the proposed pipelines would cross
streams and drainages only under certain necessary conditions. In such cases, the measures
listed above would avoid direct impact to drainages. The drainage designs would be
integrated with existing drainage systems such that drainage patterns do not result in new
erosion, siltation, or flooding, and the construction site would be restored to pre-existing
conditions, therefore, the impact on the drainage patterns would be less than significant.
b) Impact 3.3.2: Project operation would reduce the amount of annual discharge due to the
recovery and use of recycled water that is currently discharged.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.3.2: SWRCB Change of Use Petition. Member Agencies shall
complete SWRCB Change of Use Petition for use of recycled water, pursuant to Section 1700
of the California Water Code. Direct diversions of less than 3.0 cubic feet per second (cfs) or
storage of less than 200 AFY may qualify for a minor petition, as appropriate. Member
Agencies shall complete SWRCB Change of Use Petition process prior to recycled water
distribution.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Member Agencies would complete a State Water Resources Control Board
petition for change of use as appropriate to ensure recovery and use of recycled water, and
annual discharge amounts are compliant with state guidelines.
c) Impact 3.3.3: The proposed action could expose the public or structures to the risk of
flooding due to placement of facilities within the one percent annual chance of exceedance
flood level. The proposed action would also change the amount of discharge to local surface
waters.
Mitigation: Applicable to City, Water Agency, Marin Municipal Water District, Novato
Sanitary District, and Sonoma Valley County Sanitation District; not applicable to City of
American Canyon and Napa Sanitation District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
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Mitigation Measure 3.3.3: As part of the design process for seasonal storage, Member
Agencies shall demonstrate through hydrologic and hydraulic analyses that the proposed
modification and/or encroachment would not result in an increase in flood levels during the
occurrence of the one percent annual chance of exceedance flood event. Analysis shall be
performed by a California licensed engineer in accordance with standard engineering
practices.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of the above measure would ensure that the proposed
modification would not result in an increase in flood levels during the occurrence of the one
percent annual chance of exceedance flood by incorporating hydrologic and hydraulic
analyses into design.
d) Impact 3.3.4: Sea -level rise could affect operation ofproject facilities.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.3.4: Design of proposed facilities shall consider sea level rise
potential and shall include appropriate measures in facility siting and design to address
potential impacts related to sea level rise, similar to those applied to facility installation
within 100 year flood plains. Design measures may include, but are not limited to: facility
siting, access placement, access vault extension above projected water elevation, water tight
vaults, and site protection.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of the above measure would ensure that proposed facilities
consider potential sea -level rise scenarios into siting and design such that appropriate
protective measure can be established.
e) Impact 3.3.5: The NBWRP Phase 2 would not cause or exacerbate any existing risk of
inundation by seiche, tsunami, or mudflow.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
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Mitigation Measure 3.3.1a: Stream Drainage Crossings. Refer to Impact 3.3.1 in Surface
Hydrology.
Mitigation Measure 3.5.1: NPDES Construction Activity Stormwater Permit. Refer to
Impact 3.5.1 in Water Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: As discussed in the Draft Report/Statement, the proposed pipelines would cross
drainages only under certain necessary conditions. In such cases, the measures listed above
would avoid direct impact to drainages, such as constriction of flood flow which could cause
or exacerbate upstream flooding conditions. The drainage designs would be integrated with
existing drainage systems, therefore, the impact on the drainage patterns would be less than
significant.
2. Groundwater Resources
a) Impact 3.4.3: Proposed facilities may be affected by shallow groundwater levels and
natural groundwater fluctuations.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.4.3: The Member Agencies will implement the following measures:
1. All proposed improvements will be designed and constructed in accordance with
current geotechnical industry standard criteria as overseen and approved by a state
licensed geotechnical engineer.
2. Implement industry standard geotechnical measures to address high groundwater
conditions as appropriate to reduce the potential for impacts related to groundwater
fluctuation, in accordance with accepted geotechnical practices and current building
code requirements. Possible design features include drainage blankets, perimeter
pumps to temporarily decrease hydrostatic pressure, perimeter drainage trenches,
and specific groundwater monitoring scenarios.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Proposed facilities, including pipelines, pump stations, and storage facilities
would be constructed in accordance with the geotechnical standards and criteria. The design
measures would reduce the impacts related to groundwater fluctuation.
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3. Water Quality
a) Impact 3.5.1: Disturbance of soils during construction of new project -related
infrastructure could generate short term erosion -related water quality impacts. Construction
activities could result in the accidental release of fuels or hazardous materials. Project
construction activities could require dewatering that could result in the discharge of turbid
waters into the local storm drain systems or nearby creeks.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. These measures will mitigate
the above impact to a less -than -significant level.
Mitigation Measure 3.5.1: NPDES Construction Activity Stormwater Permit. Member
Agencies or their contractor shall comply with the provisions of the NPDES Construction
Activity Stormwater permit, including preparation of Notice of Intent to comply with the
provisions of this General Permit and preparation of a SWPPP. The SWPPP will identify
implementation measures necessary to mitigate potential water quality degradation as a
result of construction -related runoff. These measures will include BMPs and other standard
pollution prevention actions, such as erosion and sediment control measures, proper control
of non-stormwater discharges, and hazardous spill prevention and response. The SWPPP
will also include requirements for BMP inspections, monitoring, and maintenance.
The following items are examples of BMPs that would be implemented during construction to
avoid causing water quality degradation:
1. Erosion control BMPs, such as use of mulches or hydroseeding to prevent
detachment of soil, following guidance presented in the California BMP Handbooks —
Construction (CASQA 2003). A detailed site map will be included in the SWPPP
outlining specific areas where soil disturbance may occur, and drainage patterns
associated with excavation and grading activities. In addition, the SWPPP will
provide plans and details for the BMPs to be implemented prior, during, and after
construction to prevent erosion of exposed soils and to treat sediments before they
are transported offsite.
2. Sediment control BMPs such as silt fencing or detention basins that trap soil
particles.
3. Construction staging areas designed so that stormwater runoff during construction
will be collected and treated in a detention basin or other appropriate structure.
4. Management of hazardous materials and wastes to prevent spills and provide the
means to contain any spills that might occur.
5. Groundwater treatment BMPs such that localized trench de A,atering does not impact
surface water^ quality.
6. Vehicle and equipment fireling BMPs such that these activities occur only in
designated staging areas with appropriate spill controls.
7. Maintenance checks of equipment and vehicles to prevent spills or leaks of liquids of
any kind.
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Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of stormwater control measures and BMPs related to handling
and storage of hazardous materials would minimize sedimentation and water quality impacts.
4. Biological Resources
a) Impact 3.6.1: Construction of the Proposed Project could result in impacts to
jurisdictional wetlands and other waters of the United States, as well as impacts to waters of
the State and riparian habitat.
Mitigation: Applicable to the City, Sonoma Valley County Sanitation District, Novato
Sanitary District, City ofAmerican Canyon, and Napa Sanitation District; not applicable to
Marin Municipal Water District and Water Agency.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.1: Implement the following measures to avoid, minimize and
compensate for impacts to jurisdictional wetlands'and other waters of the U.S. and State, and
impacts to riparian habitat.
Construction activities resulting in the introduction of fill or other disturbance to
jurisdictional wetlands and other waters of the U.S. will require permit approval from the
U.S. Army Corps of Engineers and water quality certification f °om the Regional Water
Quality Control Board, pursuant to Section 401 of the Clean Water Act. Proposed facilities
would most likely be authorized under Nationwide Permit #12 (Utility Lines) pursuant to
Section 404 of the Clean Water Act. The CDFW has jurisdiction in the project area over
riparian habitat, including stream bed and banks, pursuant to Sections 1600-1616 of the Fish
and Game Code. Pipeline construction resulting in alteration to channel bed or banks,
extending to the outer dripline of trees forming the riparian corridor, is subject to CDFW
jurisdiction. If work is proposed in these areas, project proponent will be required to obtain
a Streambed Alteration Agreement (SAA) f •om the CDFW. Terms of these permits and SAA
will likely include, but will not necessarily be limited to, the mitigation measures listed
below.
1. Specific locations ofpipeline segments, storage reservoirs, and pump stations shall
be configured, wherever feasible, to avoid and minimize direct and indirect impacts
to wetlands and stream drainage channels. Consideration taken in finalizing
configuration placement shall include:
a. Reducing number and area of stream channel and wetland crossings where
feasible. Crossings shall be oriented as close to perpendicular (90 -degree angle)
to the drainage or wetland as feasible.
b. Placement of project components as distant as feasible from channels and
wetlands.
15
c. For pipeline construction activities in the vicinity of wetland and stream drainage
areas, the construction work area boundaries shall have a minimum 20 foot
setback from jurisdictional features'. Pipeline construction activities in proximity
to jurisdictional features include: 1) entrance and exit pits for directional drilling
and bore and jack operations; and 2) portions of pipeline segments listed as
"parallel" to wetlan",ater features.
2. Sites identified as potential staging areas will be examined by a qualified biologist
prior to construction. If potentially jurisdictional features are found that could be
impacted by staging activities, the site will not be used.
3. Construction methods for channel crossing shall be designed to avoid and minimize
direct and indirect impacts to channels to the greatest extent feasible. Use of
trenchless methods including suspension of pipeline from existing bridges, directional
drilling, and bore and jack tunneling will be used when feasible. Trenchless methods
are required for all perennial drainage crossings (i.e., Lynch Creek). Construction
occurring in the vicinity of riparian areas shall be delimited with a minimum 20 foot
setback to avoid intrusion of construction activities into sensitive habitat.
The following additional measures shall apply to channel crossings in which the trenching
construction method is used:
a. Limiting of construction activities in drainage channel crossings to low flow
periods: approximately April 15 to October 15.
b. At in -road drainage crossings where drainages pass beneath the road in existing
culverts, and where there is sufficient cover between the culvert and road surface,
the new pipeline will be installed above the existing culvert without removing or
disturbing it. If the pipeline must be installed below the existing culvert, then the
culvert will be cut and temporarily removed to allow pipeline installation.
c. At off-road drainage crossings, the construction corridor width will be minimized
to the greatest extent feasible at the crossing and at least 20 additional feet to
either side of the drainage at the crossing.
d. If disturbance of the existing culvert is required, sediment curtains upstream and
downstream of the construction zone shall be placed to prevent sediment
disturbed during trenching activities from being transported and deposited
outside of the construction zone.
4. Construction BMPs shall be implemented as discussed in Mitigation Measure 3.5.1
in Section 3.5, Water Quality, to reduce risk of erosion and sediment transport into
all construction areas in proximity of drainages.
5. For channels or wetlandsfor which soil removal is necessary (off-road crossings or
wetlands to be trenched or otherwise directly disturbed), the top layer of the drainage
or wetland bottom shall be stockpiled and preserved during construction., After the
pipeline has been installed, the stockpiled material shall be placed back into the
1 Setbacks of channels with associated riparian vegetation will be from the outer dripline edge of the riparian
corridor canopies and/or the upper bank edge, or per City or County code, whichever is greater.
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drainage or wetland feature to return the beds to approximately their original
composition.
6. Project sites will be revegetated with an appropriate assemblage of native upland
vegetation, and if necessary, riparian and wetland vegetation, suitable for the area. A
plan describing pre project conditions, restoration and monitoring success criteria
will be prepared prior to construction.
7. To offset temporary and permanent impacts to wetlands and other waters of the U.S.
and State, and impacts to riparian habitat, compensatory mitigation will be provided
through on-site restoration to emulate pre project conditions.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Potential impacts to riparian habitat during construction activities would be
reduced by complying with the regulatory requirements and through measures such as
avoiding stream crossings as feasible and setting setbacks from sensitive habitats.
b) Impact 3.6.2: Construction of NBWRP Phase 2 facilities could affect special -status
aquatic species including central California coast steelhead, Chinook salmon, and California
freshwater shrimp, or designated critical habitat for steelhead.
Mitigation: Applicable to the City, Sonoma Valley County Sanitation District, Novato
Sanitary District, City ofAmerican Canyon, and Napa Sanitation District; not applicable to
Marin Municipal Water District and Water Agency.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in ExhibitA. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.2: Specific measures shall be implemented to protect aquatic
habitats potentially inhabited by special -status fish and California freshwater shrimp.
Sensitive fisheries and other aquatic resources shall be protected by minimizing in -stream
and near -stream habitat impacts during project design, informally consulting with resource
agencies (NMFS, USFWS, CDFW, and USACOE), and implementing protective measures.
For Lynch Creek, North Slough, and Arroyo Seco, special -status fish are presumed present.
California freshwater shrimp are presumed present in Lynch Creek.
Because of the sensitivity of seasonal and ephemeral drainages, the following measures will
be required to avoid and minimize impacts to aquatic habitat:
1. Project designs shall be configured, whenever feasible, to avoid direct impacts to
sensitive wetland areas and minimize disturbances to wetland and riparian corridors.
Ground disturbance and construction footprints in these areas shall be minimized to
the greatest degree feasible. Trenchless constructions methods will be employed
wherever possible. In the event trenchless methods cannot be employed, the project
proponent ivould obtain appropriate permit authorizations and implement
construction methods per applicable Streambed Alteration Agreements.
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2. All activities across waterways will be restricted to low flow periods of June 15
through November 1. If the channel is dry, construction can occur as early as April
15 (in accordance with CDFW and RWQCB permit requirements). Restricting
construction activities to this work window will minimize effects to California
freshwater shrimp and steelhead;
3. Reclamation or appropriate agency shall ensure the appropriate permit
authorizations are secured for stream crossings, and a qualified biological resource
monitor shall be present at all times to alert construction crews to the possible
presence of California freshwater shrimp during construction operations;
4. At least 15 days prior to onset of activities, Reclamation or appropriate agency shall
submit the name(s) and credentials of biologists who would conduct activities
authorized by the BO. No project activities shall begin until Reclamation has received
written approval from the USFWS and CDFW that the biologist(s) is approved to
conduct the work;
5. A Service -approved biologist shall conduct a training session for construction
personnel all working near appropriate habitat prior to the onset of construction
activities. At a minimum, the training shall describe the California red -legged frog
and their habitat, their importance, and the measures that are being implemented to
conserve these species as they relate to the proposed action;
6. If trenchless methods cannot be implemented due to geotechnical conditions, and the
channel is not dry, water from around the section of trench that is within the actively
flowing channels will be diverted. This will reduce the potential for sediment or other
pollutants to enter the waterways and to affect downstream resources. Sediment
curtains will be placed downstream of the construction zone to prevent disturbed
sediment from being transported and deposited outside of the construction zone;
7. If ground water is encountered, or if water remains in the channel after f ows are
diverted, it will be pumped out of the construction area and into a retention basin
constructed of hay bales lined with filter fabric. The pump(s) will be screened
according to NMFS fish screening criteria for anadromous salmonids (NMFS, 1997);
8. Silt fencing will be installed in all areas where construction occurs within 100 feet of
known or potential California freshwater shrimp or steelhead habitat;
9. A qualified biological monitor will be on site during all activities crossing waterways.
The biological monitor will be authorized to halt construction if effects to California
freshwater shrimp or salmonids are evident.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: The project would be designed to avoid sensitive wetland areas and measures
such as educating the construction workers would minimize the impacts to special -status
species.
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c) Impact 3.6.3: Construction of the NBWRP Phase 2 has the potential to impact California
red -legged frog and western pond turtles in upland and aquatic habitat.
Mitigation: Applicable to the City, Sonoma Valley County Sanitation District, Novato
Sanitary District, City ofAmerican Canyon, and Napa Sanitation District; not applicable to
Marin Municipal Water District and Water Agency.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.3: Implement protection measures to avoid and minimize impacts to
western pond turtles and California red -legged f ogs.
1. The implementation of measures identif ed for the protection of special -status fish
and California f eshwater shrimp would also protect California red -legged f ogs and
western pond turtles within aquatic habitat. When working within 200 feet of stream
crossings, workers shall receive specific training in the identification, life history,
local project area occurrence, and protection of western pond turtles and California
red -legged f ogs. Also, to minimize the likelihood of encountering turtles orf ogs in
upland areas near stream crossings, construction footprints shall be minimized to the
greatest extent feasible. Based on reconnaissance -level surveys, if staging and
construction activities occur principally within or immediately adjacent to project
alignment roads, the project will be outside of f og and pond turtle habitat.
2. Trenchless methods will be employed at crossings presumed or known to support
California red -legged f og. In the event trenchless methods cannot be employed, the
project proponent would obtain appropriate permit authorizations and implement
construction methods per applicable Streambed Alteration Agreements;
3. To the extent practicable, work activities within or adjacent to aquatic habitat that is
potentially occupied by red -legged f ogs will be completed between April 1 and
October 31, which avoids the time period when California red -legged f ogs are most
likely to move through upland areas.
4. Prior to construction activities at stream crossings where aquatic impacts are
expected, a qualified biologist shall perform California red -legged frog and western
pond turtle surveys within suitable habitat within projected work areas. If California
red -legged f ogs or western pond turtles are encountered during construction
activities, work in the immediate area shall cease until the area is determined to be
fee of sensitive species. If a pond turtle nest is located within a work area, a biologist
with the appropriate permits may move the eggs to a suitable facility for incubation,
and release hatchlings into the creek system in late fall. If California red -legged f og
tadpoles or eggs are found, the biologist shall contact the USFWS to determine if
moving any of these life -stages is appropriate.
5. At least 15 days prior to onset of activities, Reclamation or appropriate agency shall
submit the names) and credentials of biologists who would conduct activities
authorized by the BO. No project activities shall begin until Reclamation has received
written approval from the USFWS that the biologist(s) is approved to conduct the
work;
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6. Reclamation or appropriate agency shall ensure the appropriate permit
authorizations are secured for stream crossings, and a qualified biological resource
monitor shall be present at all times to alert construction crews to the possible
presence of California red -legged frog or western pond turtle during construction
operations;
7. All trash that could attract predators will be regularly contained and removed from
the work site.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such as conducting surveys for western pond turtles and California red -
legged frogs prior to construction, informal USFWS consultation, avoiding aquatic habitat,
and establishing working areas at a specified distance from the stream crossings would
minimize the impact.
d) Impact 3.6.4: Construction of the NBWRP Phase 2 has the potential to affect special -
status marsh birds, burrowing owl, and other nesting birds in and near the project sites.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in ExhibitA. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.4: Impacts to Nesting Birds. The appropriate Member Agency shall
implement the following protection elements to avoid disturbing common and special -status
nesting birds:
1. Whenever feasible, vegetation shall be removed during the non -breeding season
(generally defined as September I to January 31).
2. For ground -disturbing activities occurring during the breeding season (generally
defined as February I to August 31), a qualified wildlife biologist will conduct
preconstruction surveys of all potential nesting habitat for birds within 500 feet of
earthmoving activities. Construction activities will be constrained to the smallest
area possible to minimize disturbance to potential nesting habitat.
3. For work in Ridgway's rail, California black rail, western snowyplover or western
burrowing owl habitat, a Service -approved biologist shall conduct a training session
for construction personnel all working near appropriate habitat prior to the onset of
construction activities. At a minimum, the training shall describe the bird species and
their habitat, their importance, and the measures that are being implemented to
conserve these species as they relate to the proposed action.
4. All work areas, including staging areas will be surveyed prior to construction for bird
nests during nesting season. If active bird nests are found during preconstruction
surveys, a 500 foot no -disturbance buffer will be created around active raptor nests
during the breeding season or until it is determined that all young have fledged A
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250 foot buffer zone will be created around the nests of other special-status birds.
For non -special status migratory birds, buffer size will be determined in consultation
with CDFW. Buffer zones may be modified in coordination with CDFW based on
existing conditions at work locations.
Ifpreconstruction surveys indicate that nests are inactive or potential habitat is unoccupied
during the construction period, no further mitigation is required. Trees and shrubs that have
been determined to be unoccupied by special-status birds or that are located at least 500 feet
from active nests may be removed.
1. For work in locations that provide habitat for listed marsh birds including Ridgway's
rail, and special-status birds such as burrowing owl and black rail, protocol-level
surveys will be conducted to determine species presence or absence.
2. If occupied burrowing owl burrows are discovered, construction exclusion areas
would be established around the occupied burrows in which no disturbance would be
allowed to occur. During the non-breeding season (September I through January
31), the exclusion zone would extend 160 feet around occupied burrows. During the
breeding season (February I through August 31), exclusion areas would extend
250 feet around occupied burrows. Passive relocation of owls is not proposed. A
qualified biologist will monitor owl activity on the site to ensure the species is not
adversely affected by the project.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CFQA Act Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such as conducting surveys for threatened and endangered marsh birds,
burrowing owl, and nesting birds prior to construction and restricting construction activities
to non-breeding season would minimize the impact.
e) Impact 3.6.5: Construction of the NBWRP Phase 2 has the potential to affect special-
status mammals, including salt marsh harvest mouse, and roosting or breeding bats in and
near the project alignments.
Mitigation: Applicable to the City, Sonoma Valley County Sanitation District, Water Agency,
Novato Sanitary District, City of American Canyon, and Napa Sanitation District; not
applicable to Marin Municipal Water District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less-than-significant level.
Mitigation Measure 3.6.5: Impacts to Mammals.
1. The appropriate Member Agency shall implement protection measures to avoid and
minimize impacts on salt marsh harvest mouse during construction. Where avoidance
of sensitive habitat (i.e., areas in or near pickle weed) is not feasible (e.g., by bridging
or bore and jack), consultation with the USFYVS would be initiated. If salt marsh
harvest mouse is present or presumed to be present in the project area following
21
informal coordination with USFWS, then formal consultation and a Biological
Assessment in support of a Biological Opinion may be needed. Such a consultation
would proceed as part of the Corps 404 permitting process. Similar coordination and
permitting shall be performed with CDFW to address potential impacts to salt marsh
harvest mouse. Staging areas shall be located outside potential salt marsh harvest
mouse habitat.
2. To avoid potential impacts on salt marsh harvest mouse and Suisun ornate shrew, a
qualified biologist shall conduct specific preconstruction surveys to delineate
potential habitat in the project area. For areas within 100 feet of potential habitat,
the project proponent shall install exclusionary fences to prevent species movement
into the project area, and to prevent spoils from entering the salt marsh. Fencing will
consist of a material that does not allow small mammals to pass through or over, and
the bottom will be buried to a depth of at least six inches.
3. A qualified biologist shall conduct a training session for construction personnel all
working near appropriate habitat prior to the onset of construction activities. At a
minimum, the training shall describe the species and their habitat, their importance,
and the measures that are being implemented to conserve these species as they relate
to the proposed action.
4. Once a Biological Opinion is issued for the work, a qualified biologist will direct
crews in the hand removal ofpickleweed and remain on-site to provide biological
monitoring during construction. The biological monitor shall inspect the exclusion
fence to ensure their integrity and shall conduct an education workshop for
contractors outlining species' biology, legislative protection, and construction
restrictions to reduce potential impacts. Protective measures for the salt marsh
harvest mouse will equally protect the Suisun ornate shrew.
5. At the close of each workday, escape ramps/boards will be provided in all open
trenches. Every morning prior to the start of construction, a qualified biologist will
inspect all open trenches within 250 feet of emergent pickleweed (Salicornia pacifrca)
habitat for trapped mice. In the event a salt marsh harvest mouse or Suisun ornate
shrew is found on-site, with approval from the Service, the biologist will remove
animals from trenches before the start of construction.
6. A Service -approved biologist will be onsite during all ground -disturbing activities,
including vegetation removal and during morning trench inspections, and otherwise
available during the course of the construction work. The biologist will be
responsible for informing the crews of the need to halt work if sensitive species are
observed, and documenting compliance with the conservation measures and
contacting the USFWS if any sensitive species are observed.
7. The appropriate Member Agency shall implement protection measures to avoid and
minimize impacts on special -status bats in and near projectfacilities during
construction.
8. In conjunction with breeding bird surveys (Mitigation Measure 3.6.4), a qualified
biologist will conduct preconstruction surveys for special -status bats at each bridge
crossing location and in rural (i.e., non -road) areas where any large trees (e.g., >
22
24 -inch diameter at breast height) will be removed. If an active roost is observed, a
suitably -sized buffer (e.g., 100 to 150 feet) will be placed around the roost if it
appears that trenching or other project activities may cause abandonment.
Demolition activities must cease until juvenile bats are self-sz fficient and will not be
directly or indirectly impacted by activities.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such as conducting surveys for salt harvest mouse, Suisun ornate shrew
and special -status bats prior to construction, avoiding or maintaining a suitable buffer from
an active roost, and restricting construction activities to non -breeding season would minimize
the impact.
fi Impact 3.6.6: Project construction could result in impacts to listed and other special -status
plants.
Mitigation: Applicable to the City, Sonoma Valley County Sanitation District, Water Agency,
Novato Sanitary District, City ofAmerican Canyon, and Napa Sanitation District; not
applicable to Marin Municipal Water District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.6: Impacts to Rare Plants. Before the initiation of any vegetation
removal or ground -disturbing activities in areas that provide suitable habitat for special -
status plants, the following measures shall be implemented:
1. A qualified botanist will conduct appropriately -timed surveys for special -status plant
species, including those identified in Appendix 3.6C, in all suitable habitat that would
be potentially disturbed by the project, including staging areas.
2. Surveys shall be conducted following the most recent CDFW- or other approved
protocol.
3. If no special -status plants are found during focused surveys, the botanist shall
document the findings in a letter to the appropriate agencies and no further
mitigation will be required.
4. If special -status plants are found during focused surveys, the following measures
shall be implemented.-
a.
mplemented.a. Information regarding the special -status plant population shall be reported to the
CNDDB.
b. If the populations can be avoided during project implementation, they shall be
clearly marked in the field by a qualified botanist and avoided during
construction activities. Before ground clearing or ground disturbance, all on-site
23
construction personnel shall be instructed as to the species' presence and the
importance of avoiding impacts to this species and its habitat.
c. If special -status plant populations cannot be avoided, consultations with CDFW
and/or USFWS would be required. A plan to compensate for the loss of special -
status plant species could be required, detailing appropriate replacement ratios,
methods for implementation, success criteria, monitoring and reporting protocols,
and contingency measures that would be implemented if the initial mitigation
Jails; the plan would be developed in consultation with the appropriate agencies
prior to the start of local construction activities.
d. If mitigation is required, the project proponent shall maintain and monitor the
mitigation area for 5 years following the completion of construction and
restoration activities. Monitoring reports shall be submitted to the resource
agencies at the completion of restoration and for S years following the completion
of construction and restoration activities. Monitoring reports shall be submitted
to the resource agencies at the completion of restoration and for S years
following restoration implementation. Monitoring reports shall include photo-
documentation, planting specifications, a site layout map, descriptions of
materials used, and justification for any deviations from the mitigation plan.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such as conducting surveys of vegetation and consultation with United
States Fish and Wildlife Service and California Department of Fish and Wildlife as required,
would minimize the impact.
g) Impact 3.6.7.• The proposed project could affect heritage and other significant trees.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.6.7: The following measures will be implemented to avoid or reduce
impacts to heritage or other significant trees:
1. If trees are identifiedfor removal or trimming, a certified arborist will inventory
these trees, with the results of the inventory providing species, size (diameter at
breast height), and number ofprotected trees. Also, in consultation with the
appropriate jurisdiction, the arborist will determine if any are heritage or landmark
trees.
2. If any protected trees are identified that will be potentially removed or damaged by
construction of the proposed project, design changes will be implemented where
feasible to avoid the impact.
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3. Any protected trees that are removed will be replaced per applicable City and County
tree protection ordinances (see Appendix 3.6A). Foliage protectors (cages and tree
shelters) will be installed to protect the planted trees from wildlife browse. The
planted trees will be monitored as required by the ordinance, or regularly during a
minimum two year establishment period and maintenance during the plant
establishment period will include irrigation. After the establishment period, the native
tree plantings are typically capable of survival and growth without supplemental
irrigation.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such as avoiding protected trees and replacing any removing trees as
per the local tree protection ordinances would minimize the impact to heritage and significant
trees.
5. Traffic and Transportation
a) Impact 3.8.1: Construction of NBWRP Phase 2 would have temporary and intermittent
effects on traffic and transportation conditions in the project area.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.8.1a: The appropriate Member Agency for each NBWRP Phase 2
element shall obtain and comply with local and Caltrans road encroachment permits for
roads that are affected by construction activities.
The Work Area Protection and Traffic Control Manual includes requirements to ensure safe
maintenance of traffic flow through or around the construction work zone, and safe access of
police, fire, and other rescue vehicles (CJUTCC 2014). In addition, the Traffic Management
Plan (subject to local jurisdiction review and approval, or Caltrans for State roadways)
required by Mitigation Measure 3.8.Ib, below, would direct how traffic flow is safely
maintained during project construction.
Mitigation Measure 3.8.1b: The construction contractor for each NBWRP Phase 2 element
shall prepare and implement a Traffic Control/Traffic Management Plan subject to approval
by the appropriate local jurisdiction prior to construction. The plan —prepared in
accordance with the California Manual on Uniform Traffic Control Devices — shall be
subject to approval by Caltrans for work occulting in Caltrans facilities. The plan shall:
1. Identify hours of construction (between 7:00 AM and 7:00 PM- no construction shall
be permitted between 10: 00 PM and 7: 00 AM unless stipulated incoordination with
responsible jurisdiction on a case-by-case basis);
2. Identify hours for deliveries;
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3. Include a discussion of haul routes, limits on the length of open trench, work area
delineation, traffic control and flagging;
4. Identify all access and parking restriction, pavement markings and signage
requirements (e.g., speed limit, temporary loading zones);
S. Layout a plan for notifications and a process for communication with affected
residents and businesses prior to the start of construction. Advance public
notification shall include posting of notices and appropriate signage of construction
activities. The written notification shall include the construction schedule, the exact
location and duration of activities within each street (i.e., which lanes and access
point/driveways would be blocked on which days and for how long), and a toll free
telephone number for receiving questions or complaints;
6. Include a plan to coordinate all construction activities with emergency service
providers in the area at least one month in advance. Emergency service providers
shall be notified of the timing, location, and duration of construction activities. All
roads shall remain passable to emergency service vehicles at all times;
7. Include a plan to coordinate all construction activities with the appropriate local
school district at least two months in advance. The school district shall be notified of
the timing, location, and duration of construction activities. Coordinate with the
appropriate local school district to identify peak circulation periods at schools along
the alignment(s) (i. e., the arrival and departure of students), and require their
contractor to avoid construction and lane closures during those periods. The
construction contractor for each project component shall be required to maintain
vehicle, pedestrian, and school bus service during construction through inclusion of
such provisions in the construction contract. The assignment of temporary crossing
guards at designated intersections may be needed to enhance pedestrian safety
during project construction;
8. Include the requirement that all open trenches be covered with metal plates at the end
of each workday to accommodate traffic and access; and
9. Specify the street restoration requirements pursuant to agreements with the local
jurisdictions.
Mitigation Measure 3.8.1c: The appropriate Member Agency for each NBWRA Phase 2
element shall identify all roadway locations where special construction techniques (e.g.,
horizontal boring, directional drilling or night construction) will be used to minimize impacts
to traffic flow.
Mitigation Measure 3.8.Id: The appropriate Member Agency for each NBWRA Phase 2
element shall develop circulation and detour plans to minimize impact to local street
circulation. This may include the use of signing and flagging to guide vehicles through
and/or around the construction zone.
Mitigation Measure 3.8.le: The appropriate Member Agency for each NBWRA Phase 2
element shall encourage construction crews to park at staging areas to limit lane closures in
the public right-of-way.
c
Mitigation Measure 3.8.If.• The appropriate Member Agency for each NBWRA Phase 2
element shall consult with the appropriate public transit service providers at least one month
prior to construction to coordinate bus stop relocations (as necessary) and to reduce
potential interruption of transit service.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Traffic mitigating measures such as preparing an implementing a traffic control
and management plan and complying with the local road encroachment permits would
minimize impacts from congestion during project construction.
b) Impact 3.8.2: Construction of NBWRP Phase 2 would temporarily disrupt circulation
patterns near sensitive land uses (schools, hospitals, fire stations, police stations, and other
emergency providers).
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.8.2x: Pipeline construction near schools shall occur when school is
not in session (i. e., summer or holiday breaks). If this is not feasible, a minimum of two
months prior to project construction, the appropriate Member Agency for each NBWRA
Phase 2 element shall coordinate with the appropriate local school district to idents peak
circulation periods at schools along the alignment(s) (i. e., the arrival and departure of
students), and require their contractor to avoid construction and lane closures during those
periods.
Mitigation Measure 3.8.2b: A minimum of two months prior to project construction, the
appropriate Member Agency for each NBWRP Phase 2 element shall coordinate with the
appropriate local school district to identify alternatives to their Safe Routes to School
program, alternativesfor the school busing routes and stop locations, and other circulation
provisions, as part of the Traffic Controffraffic Management Plan (see Mitigation
Measure 3.8.1a).
Mitigation Measure 3.8.2c: Implement Mitigation Measure 3.8.1 b.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Coordination with local school districts and identifying alternative traffic routes
would minimize the impacts from temporary disruption to access to sensitive land uses.
c) Impact 3.8.3: Construction of NBWRP Phase 2 would have temporary effects on
alternative transportation or alternative transportation facilities.
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Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.8.3: Implement Mitigation Measure 3.8. If.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Consulting with the appropriate public transit service providers prior to
construction would minimize effects on access to alternative transportation facilities.
d) Impact 3.8.4: Construction of NBWRP Phase 2 would temporarily increase the potential
for accidents on project roadways.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.8.4: Implement Mitigation Measures 3.8.1 b through 3.8. If.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures noted above to reduce traffic congestion and delays from increased
traffic from project construction would minimize any related traffic hazards.
e) Impact 3.8.5: Construction of the NBWRP Phase 2 would increase wear and tear on the
designated haul routes used by construction vehicles to access the project work sites.
Mitigation: Applicable to all MemberAgencies
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.8.5: Roads damaged by construction shall be repaired to a structural
condition equal to that which existed prior to construction activity as per conditions of the
encroachment permit (see Mitigation Measure 3.8.1a).
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
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Rationale: The roads used for construction would be restored to pre-existing condition,
therefore the traffic from project construction would not cause significant road wear.
6. Air Quality
a) Impact 3.9.1: Construction of the NBWRP Phase 2 projects would result in criteria
pollutant emissions that could exceed air quality standards or contribute substantially to an
existing or projected air quality violation.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.9.1-Ia: BAAQMD Basic Construction Measures. To limit dust,
criteria pollutants, and precursor emissions associated with construction, the following
BAAQMD-recommended Basic Construction Measures shall be implemented and included in
all contract specifications for projects constructed under the Phase 2 Program:
1. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and
unpaved access roads) shall be watered two times per day.
2. All haul trucks transporting soil, sand, or other loose material off-site shall be
covered.
3. All visible mud or dirt track -out onto adjacent public roads shall be removed using
wet power vacuum street sweepers at least once per day. The use of dry power
sweeping is prohibited.
4. All vehicle speeds on unpaved roads shall be limited to 15 miles per hour (mph).
5. All roadways, driveways, and sidewalks to be paved shall be completed as soon as
possible. Building pads shall be laid as soon as possible after grading unless seeding
or soil binders are used.
6. Idling times shall be minimized either by shutting equipment off when not in use or
reducing the maximum idling time to 5 minutes (as required by the California
airborne toxics control measure Title 13, Section 2485 of California Code of
Regulations [CCR]). Clear signage shall be provided for construction workers at all
access points.
7. All construction equipment shall be maintained and properly tuned in accordance
with manufacturer's specifications. All equipment shall be checked by a certified
mechanic and determined to be running in proper condition prior to operation.
8. Post a publicly visible sign with the telephone number and persons to contact at the
North Bay Water Reuse Authority and/or the applicable member agency regarding
dust complaints. These persons shall respond and take corrective action within 48
hours. The BAAQMD's phone number shall also be visible to ensure compliance with
applicable regulations.
I7
Mitigation Measure 3.9.1 -Ib: Additional Construction Mitigation Measures. The North
Bay Water Reuse Authority and/or applicable member agency shall implement all feasible
measures from the BAAQMD's Additional Construction Mitigation Measures listed below:
All exposed surfaces shall be watered at a frequency adequate to maintain minimum
soil moisture of 12 percent. Moisture content can be verified by lab samples or
moisture probe.
2. All excavation, grading, and/or demolition activities shall be suspended when
average wind speeds exceed 20 mph.
3. Wind breaks (e.g., trees, fences) shall be installed on the windward side(s) of actively
disturbed areas of construction. Wind breaks should have at maximum 50 percent air
porosity.
4. Vegetative ground cover (e.g., fast -germinating native grass seed) shall be planted in
disturbed areas as soon as possible and watered appropriately until vegetation is
established.
5. The simultaneous occurrence of excavation, grading, and ground -disturbing
construction activities on the same area at any one time shall be limited. Activities
shall be phased to reduce the amount of disturbed surfaces at any one time.
6. All trucks and equipment, including their tires, shall be washed offprior to leaving
the site.
7. Site accesses to a distance of 100 feet from the paved road shall be treated with a 6 to
12 -inch compacted layer of wood chips, mulch, or gravel.
8. Sandbags or other erosion control measures shall be installed to prevent silt runoff to
public roadways from sites with a slope greater than one percent.
9. Minimize the idling time of diesel powered construction equipment to 2 minutes.
10. The off-road diesel powered equipment (more than 50 horsepower) to be used in the
construction of any project (i.e., owned, leased, and subcontractor vehicles) tinder the
Phase 2 Program shall be equipped with engines that achieve USEPA Tier 4
emissions standards.
11. Use low volatile organic compound (i.e., ROG) coatings beyond the local
requirements (i.e., Regulation 8, Rule 3: Architectural Coatings).
12. Require that all construction equipment, diesel trucks, and generators be equipped
with Best Available Control Technology for emission reductions of NOx and PM10.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of Bay Area Air Quality Management District -recommended
Basic Construction Measures and Additional Construction Mitigation Measures would
minimize emissions of criteria air pollutants during construction.
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b) Impact 3.9.3: Construction of the NBWRP Phase 2 projects would result in emissions that
could conflict with the 2017 Clean Air Plan.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.9.1-Ia: BAAQMD Basic Construction Measures and Mitigation
Measure 3.9.1 -Ib: Additional Construction. Refer to Impact 3.9.1 in Air Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of Bay Area Air Quality Management District -recommended
Basic Construction Measures and Additional Construction Mitigation Measures would
minimize emissions that could conflict with the 2017 Clean Air Plan.
c) Impact 3.9.4: Construction of the NBWRP Phase 2 could expose sensitive receptors to
toxic air contaminants, including diesel particulate matter emissions.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure: Implement Mitigation Measure 3.9.1 -Ib: Additional Construction.
Refer to Impact 3.9.1 in Air Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of Bay Area Air Quality Management District -recommended
Additional Construction Mitigation Measures would minimize sensitive receptors exposure
to toxic air contaminants, including diesel particulate emissions.
7. Noise
a) Impact 3.11.2: Construction activity would violate standards established in the local
general plans or noise ordinances, andlor would adversely affect nearby sensitive receptors.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
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Mitigation Measure 3.11.2-2a: Construction Time -of -Day Restriction. All NBWRP Phase 2
project construction activities shall be limited to the acceptable hours identified within the
applicable jurisdiction policies and/or municipal codes unless granted a special exemption
by the applicable jurisdiction.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Construction noise levels would be limited to hours set forth in jurisdiction
policies and/or municipal which would minimize potential to violate standards established in
the local general plans or noise ordinances. Construction would be short-term and temporary;
therefore, sensitive receptors would only be exposed to increased noise levels for a short
duration.
8. Hazards and Hazardous Materials
a) Impact 3.12.2: Emit hazardous emissions or handle hazardous or acutely hazardous
materials, substances, or waste within one-quarter mile of an existing or proposed school.
Mitigation: Applicable to City and City ofAmerican Canyon; not applicable to Sonoma
Valley County Sanitation District, Water Agency, Novato Sanitary District, Napa Sanitation
District, and Marin Municipal Water District.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measures 3.8.Ib., Refer to Impact 3.8.1 in Transportation and Traffic.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Traffic mitigating measures such as preparing an implementing a traffic control
and management plan and complying with the local road encroachment permits would
minimize impacts related to emitting or handling hazardous or acutely hazardous materials,
substances, or waste within one-quarter miles of an existing or proposed school.
b) Impact 3.12.3: Be located on a site that is included on a list of hazardous materials sites
compiled pursuant to Government Code Section 65962.5 and, as a result, would create a
significant hazard to the public or the environment.
Mitigation: Applicable to City and City ofAmerican Canyon; not applicable to Sonoma
Valley County Sanitation District, Water Agency, Novato Sanitary District, Napa Sanitation
District, and Marin Municipal Water District.
32
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measures 3.12-3a. Health and Safety Plan. The construction contractor(s) shall
prepare and implement a site-specific Health and Safety Plan as required by and in
accordance with 29 CFR 1910.120 to protect construction workers and the public during all
excavation and grading activities. The Health and Safety Plan shall include, but is not
limited to, the following elements:
1. Designation of a trained, experienced site safety and health supervisor who has the
responsibility and authority to develop and implement the site health and safety plan;
2. A summary of all potential risks to construction workers and maximum exposure
limits for all known and reasonably foreseeable site chemicals;
3. Specified personal protective equipment and decontamination procedures, if needed;
4. Emergency procedures, including route to the nearest hospital; and
5. Procedures to be followed in the event that evidence ofpotential soil contamination
(such as soil staining, noxious odors, debris or buried containers) is encountered.
These procedures shall be in accordance with hazardous waste operations
regulations and specifically include, but are not limited to, the following: immediately
stopping work in the vicinity of the unknown hazardous materials release, notifying
the appropriate regulatory agency, and retaining a qualified environmental firm to
perform sampling and remediation, as needed.
Mitigation Measures 3.12-3b. Soil and Groundwater Management Plan. In support of the
Health and Safety Plan described above, the construction contractor(s) shall develop and
implement a Soil Management Plan that includes materials testing and disposal procedures
specifying how the construction contractor will remove, handle, transport, and dispose of all
excavated material in a safe, appropriate, and lawful manner. The plan shall identify
protocols for soil testing, list action levels to determine whether the soil may be reused or
must be disposed of at an offsite facility permitted to accept the materials, identify the
approved disposal site, and include written documentation that the disposal site will accept
the waste. Contract specifications shall mandate full compliance with all applicable local,
state, and federal regulations related to the identification, transportation, and disposal of
hazardous materials, including those encountered in excavated soil.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of a site-specific Health and Safety Plan and Soil and
Groundwater Management Plan would minimize impacts related to creating a significant
hazard to the public or the environment.
C) Impact 3.12.5: Impairimplementation of or physically interfere with an adopted
emergency response plan or emergency evacuation plan during construction.
33
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measures 3.8.1b through 3.8.If. Refer to Impact 3.8.1 in Transportation and
Traffic.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Traffic mitigating measures such as preparing an implementing a traffic control
and management plan and complying with the local road encroachment permits would
minimize impacts related to interfering with an adopted emergency response plan or
emergency evacuation plan.
d) Impact 3.12.6.• Expose people or structures to a significant risk of loss, injury, or death
involving wildland fires, including where wildlands are adjacent to urbanized areas or where
residences are intermixed with wildlands.
Mitigation: Applicable to City and Marin Municipal Water District; not applicable to
Sonoma Valley County Sanitation District, Water Agency, Novato Sanitary District, Napa
Sanitation District, and City ofAmerican Canyon.
The following mitigation measures are hereby adopted and will be implemented as setforth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measures 3.12-6. Fire Safety Plan. Prior to construction, the construction
contractor for each project component that would be within or adjacent to an area
designated as susceptible to wildland fires shall prepare and implement afire safety plan to
reduce the potential for starting wildland fires during construction activities. The fire safety
plan shall provide, but not be limited to, the following elements:
In consultation with local fire agencies, a Fire Safety Plan will be developed for each of the
service areas designated as susceptible to wildland fires. The Fire Safety Plans will describe
various potential scenarios and action plans in the event of afire. During project
construction, all staging areas, welding areas, or areas slated for development using spark -
producing equipment will be cleared of dried vegetation or other material that could ignite.
Any construction equipment that includes a spark arrestor shall be equipped with a spark
arrestor in good working order. All vehicles and crews working at the project sites shall have
access to functional fare extinguishers at all times. In addition, construction crews will be
required to have a spotter during welding activities to look out for potentially dangerous
situations, including accidental sparks.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
34
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of a Fire Safety Plan would minimize impacts related to exposing
people or structures to a significant risk of loss, injury, or death involving wildland fires.
9. Public Services and Utilities
a) Impact 3.13.1: Project construction activities could temporarily affect response times for
emergency service providers.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, Marin Municipal
Water District, and City ofAmerican Canyon; not applicable to Novato Sanitary District,
Water Agency, and Napa Sanitation District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.13.1: The Member Agencies or Participating Municipalities will
coordinate with local emergency service providers in its service area to inform them of the
proposed construction activities and schedule and provide temporary alternate access routes
around construction areas as necessary.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Coordinating with local emergency service providers would reduce any effects on
the response times for emergency response during project construction.
b) Impact 3.13.2: Project construction activities could require short-term police and fire
protection services to assist in traffic management or in the event of an accident.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, Water Agency,
Marin Municipal Water District, Novato Sanitary District, and City ofAmerican Canyon; not
applicable to Napa Sanitation District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.13.2: The Member Agency (i. e., project owner) or it construction
contractor shall provide 72 -hour notice to the local emergency service providers prior to
construction of individual pipeline segments. The Member Agency or its construction
contractor shall provide, upon request, a copy of the Traffic Control/Traffic Management
Plan to the emergency service agencies for review prior to construction. Discussion on the
Traffic Control/Traffic Management Plan is provided in Section 3.8, Transportation and
Traffic.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
35
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: As noted in the traffic control plan and mitigation measures above, pre -
construction notice to the local service providers would reduce any impacts related to police
and fire assistance during project construction.
c) Impact 3.13.3: Project construction could result in temporary, planned, or accidental
disruption to utility services.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, Water Agency,
Marin Municipal Water District, Novato Sanitary District, and City ofAmerican Canyon; not
applicable to Napa Sanitation District.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in ExhibitA. This measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.13.3: The Member Agencies (i.e., project owner) or its construction
contractor shall identify utilities along the proposed pipeline routes and project sites prior to
construction and implement the following measures:
a. Utility excavation or encroachment permits shall be obtained as required from
the appropriate agencies. These permits include measures to minimize utility
disruption. The service provider and its contractors shall comply with permit
conditions regarding utility disruption.
b. Utility locations shall be verified through the use of the Underground Service
Alert services and/or field survey.
c. As necessary, detailed specifications shall be prepared as part of the design plans
to include procedures for the excavation, support, and fill of areas around utility
cables and pipes. All affected utility services shall be notified of construction
plans and schedule. Arrangements shall be made with these entities regarding
protection, relocation, or temporary disconnection of services.
d. In areas where the pipeline would traverse parallel to underground utility lines
within five feet, the project applicant shall employ special construction
techniques, such as trench wall -support measures to guard against trench wall
failure and possible resulting loss of structural support for the excavated areas.
e. Residents and businesses in the project corridor shall be notified of any planned
utility service disruption two to four days in advance, in conformance with county
and state standards.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
36
Rationale: Identifying utilities along the proposed pipeline routes and project sites prior to
construction and executing measures to notify and coordinate with the affected utility
services would minimize accidental disruption of utility services.
10. Cultural Resources and Tribal Cultural Resources
a) Impact 3.14.1 Impacts or Adverse Effects to Archaeological Resources, Human Remain,
and Tribal Cultural Resources
This impact discussion focuses on archaeological resources, human remains, and tribal
cultural resources that are considered historical resources or unique archaeological
resources (for the purposes of CEQA), or historic properties (for the purposes of the
National Historic Preservation Act).
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.14.1 a: Inadvertent Discoveries. If prehistoric or historic -era
archaeological resources are encountered, the contractor shall immediately cease all work
within 100 feet of the discovery. Prehistoric archaeological materials might include obsidian
and chert flaked -stone tools (e.g., projectile points, knives, scrapers) or toolmaking debris;
culturally darkened soil ("midden') containing heat -affected rocks, artifacts, or shellfish
remains; and stone milling equipment (e.g., mortars, pestles, handstones, or milling slabs);
and battered stone tools, such as hammerstones and pitted stones. Historic -era materials
might include stone, concrete, or adobe footings and walls; filled wells or privies; and
deposits of metal, glass, and/or ceramic refuse. After cessation of excavation, the contractor
shall immediately contact the NBWRA and the appropriate Member Agency. The contractor
shall not resume work until authorization is received from the appropriate Member Agency:
1. In the event of unanticipated discovery of archaeological resources during
construction, the Member Agency shall retain the services of a qualified professional
archaeologist (defined as an archaeologist that meets the Secretary of the Interior's
Standards) to evaluate the significance of the find prior to resuming any activities.
2. If it is determined that the Project could damage a historical resource or a unique
archaeological resource (pursuant to CEQA) or a historic property (pursuant to
NHPA), mitigation shall be implemented with a preference for preservation in place.
This may be accomplished through planning construction to avoid the resource,-
incorporating
esource;incorporating the resource within open space; capping and covering the resource; or
deeding the site into a permanent conservation easement. If the site cannot be
avoided, a qualified professional archaeologist shall prepare and implement a
detailed research design and treatment plan in consultation with the Member Agency
and the affiliated Native American tribe (s), as appropriate. Treatment for most
resources would consist of (but would not be not limited to) sample excavation,
artifact collection, site documentation, and historical research, with the aim to target
the recovery of important scientific data contained in the portion(s) of the significant
resource to be impacted by the Project. The treatment plan shall include provisions
for analysis of data in a regional context, reporting of results within a timely manner,
37
curation of artifacts and data at an approved facility, and dissemination of reports to
local and state repositories, libraries, and interested professionals.
Mitigation Measure 3.14.Ih: Discovery of Human Remains. If potential human remains are
encountered, the appropriate Member Agency shall halt work in the vicinity of the find and
contact the county coroner in accordance with PRC Section 5097.98 and Health and Safety
Code Section 7050.5. If the coroner determines the remains are Native American, the
coroner shall contact the Native American Heritage Commission. As provided in PRC
Section 5097.98, the Commission shall identify the person or persons believed to be most
likely descended from the deceased Native American. The most likely descendent makes
recommendations for means of treating or disposing of, with appropriate dignity, the human
remains, and any associated grave goods as provided in PRC Section 5097.98.
Mitigation Measure 3.14.1 c: Cultural Resources Assessment for Staging Areas. When
locations for staging are defined, the staging areas should be subject to a cultural resources
investigation completed by a qualified professional archaeologist that includes, at a
minimum:
1. An updated records search at the NWIC;
2. An intensive survey of the staging areas;
3. A report disseminating the results of this research;
4. Recommendations to avoid impacts to identified resources that qualify as historical
resources, unique archaeological resources, tribal cultural resources, or historic
properties; and
5. If resources cannot be avoided, provide recommendations for additional cultural
resources work necessary to mitigate any adverse impacts to recorded and/or
undiscovered cultural resources.
Mitigation Measure 3.14. Id. Cultural Resources Monitoring. Prior to authorization to
proceed, or issuance of permits, the appropriate Member Agency shall prepare a cultural
resources monitoring plan. Monitoring shall be required for all surface alteration and
subsurface excavation work including trenching, boring, grading, use of staging areas and
access roads, and driving vehicles and equipment within all areas delineated as sensitive for
cultural resources. A qualified professional archaeologist shall prepare the plan. The plan
shall address (but not be limited to) the following issues:
1. Clear delineation and fencing of sensitive cultural resource areas requiring
monitoring;
2. Training program for all construction and field workers involved in site disturbance;
3. Person(s) responsible for conducting monitoring activities, including Native
American monitors, if necessary;
4. Person(s) responsible for overseeing and directing the monitors;
5. Schedule for submittal of monitoring reports and persons) responsible for review
and approval of monitoring reports;
6. Procedures and construction methods to avoid sensitive cultural resource areas;
38
7. Physical monitoring boundaries;
8. Protocol for notifications in case of encountering of cultural resources, as well as
methods of dealing with the encountered resources (e.g., collection, identification,
curation);
9. Methods to ensure security of cultural resources sites;
10. Protocol for notifying local authorities (i.e. Sheriff, Police) should site looting and
other illegal activities occur during construction.
If an intact archaeological deposit is encountered, all soil -disturbing activities within 100
feet of the find shall cease until the deposit is evaluated. The archaeological monitor shall
immediately notify the appropriate Member Agency of the encountered archaeological
resource. The protocol outlined in Mitigation Measure 3.14.1a and Mitigation Measure
3.14.Ib would be implemented.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Measures such Section 106 consultation and monitoring of cultural resources,
archaeological and Native American sites, and cultural resource assessment would minimize
impacts to the sites. In the inadvertent discovery of human remains, work would be halted,
and the mitigation would include notifying the Native American Heritage Commission and
the most likely descendants would recommend the means of treating and disposing the
remains.
11. Recreation
a) Impact 3.15.1: Project construction could result in short-term disturbance adjacent to
recreational facilities.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, and City of
American Canyon; not applicable to Marin Municipal Water District, Novato Sanitary
District, Water Agency, and Napa Sanitation District.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. These measures will mitigate
the above impact to a less -than -significant level.
Mitigation Measure 3.15.1: The appropriate Member Agency shall coordinate with the
appropriate local and regional agencies to identify detour routes for the bikeways and trails
during construction where feasible, as part of the Traffic Control/Traffic Management Plan
(see Measure 3.8.1). In addition, the Member Agency shall conduct outreach to notify the
public of closures, detours, etc.
Findings: Based on the Final Report/Statement and the entire record before the. City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
39
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/District.
Rationale: Coordination with the local agencies and consulting local park management
agency prior to construction would minimize any disturbance to recreational facilities.
12. Aesthetics
a) Impact 3.16.2: Implementation of NBWRP could affect views along eligible or designated
Caltrans Scenic Highways or locally -defined scenic routes.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, Novato Sanitary
District, and City ofAmerican Canyon; not applicable to Marin Municipal Water District,
Water Agency, and Napa Sanitation District.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.16.2a: Following construction activities, disturbed areas shall be
restored to baseline conditions, by repaving roadways, replanting trees, and/or reseeding
with a native seed mix typical of the immediately surrounding area.
Mitigation Measure 3.16.2b: Berms around constructed reservoirs shall be vegetated with
native seed mixes to soften the visual effect of the reservoirs from adjacent roadways.
Mitigation Measure 3.16.2c: Design elements shall be incorporated to enhance visual
integration of the pump stations and other above ground structures with their surroundings.
Proposed facilities shall be painted low -glare earth -tone colors that blend with the
surrounding terrain. Highly reflective building materials and/or finishes shall not be used in
the designs for proposed facilities.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of the measures above would lessen the impacts to views along
scenic roadways.
b) Impact 3.16.4: Development of the proposed facilities, particularly pump stations and
storage reservoirs, would permanently alter the aesthetic character of the project area.
Mitigation: Applicable to City, Sonoma Valley County Sanitation District, Marin Municipal
Water District, City ofAmerican Canyon, and Napa Sanitation District; not applicable to
Novato Sanitary District and Water Agency.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
M
Mitigation Measure 3.16.4a: Following construction activities, disturbed areas shall be
restored to baseline conditions, by repaving roadways, replanting trees, and/or reseeding
with a native seed mix typical of the immediately surrounding area.
Mitigation Measure 3.16.4b: Design elements shall be incorporated to enhance visual
integration of the pump stations or other project -related above ground structures with their
surroundings. Proposed facilities shall be painted low -glare earth -tone colors that blend
with the surrounding terrain. Highly reflective building materials and/or finishes shall not be
used in the designs for proposed facilities.
Mitigation Measure 3.16.4c: After construction of any facility that is above grade and
visible to sensitive receptors, visual screening and vegetation measures will be implemented
to reduce impacts to scenic views. Trees or other suitable vegetation along the fenceline of
the facility should be incorporated to reduce the industrial appearance of the structures.
Similarly, berms for new storage ponds or pond reconfiguration will be re -vegetated to
reduce the barren appearance of the berms.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Designing the project elements to provide visual screening or using non-
reflecting building materials would not have a significant effect to the existing aesthetic
character.
13. Energy Conservation
a) Impact 3.17.1: Use large amounts of fuel and energy in an unnecessary, wasteful, or
inefficient manner during construction and decommissioning.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.9.1-Ia: BAAQMD Basic Construction Measures and Mitigation
Measure 3.9.1 -Ib: Additional Construction. Refer to Impact 3.9.1 in Air Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of Bay Area Air Quality Management District -recommended
Basic Construction Measures and Additional Construction Mitigation Measures would
minimize wasteful use of fuel and energy.
14. Environmental Justice
a) Impact 3.18.1: Project construction could result in significant environmental impacts that
could disproportionately affect minority or low-income populations.
Mitigation: Applicable to City, Novato Sanitary District, Marin Municipal Water District,
and City ofAmerican Canyon; not applicable to Sonoma Valley County Sanitation District,
Water Agency, and Napa Sanitation District.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A. The measures will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 3.9.1-1a: BAAQMD Basic Construction Measures and Mitigation
Measure 3.9.1-1b: Additional Construction. Refer to Impact 3.9.1 in Air Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Implementation of Bay Area Air Quality Management District -recommended
Basic Construction Measures and Additional Construction Mitigation Measures would
minimize environmental impacts that could disproportionately affect minority or low-income
populations.
14. Cumulative Impacts
a) Impacts 4.1: Concurrent construction of several projects within the Sonoma, Napa, and
Marin County areas could result in cumulative short-term impacts associated with
construction activities. If implemented at the same time as other construction projects,
construction of facilities could contribute to potential short-term cumulative effects
associated with erosion, cultural resource disturbance, disturbance of adjacent land uses,
traffic disruption, dust generation, construction noise, aesthetics, air quality, biological
resources, hazardous materials, water quality, public services and utilities. However,
construction -related impacts would not result in long term alteration of the environment and
could be mitigated to less than significant levels through the use of mitigation measures
identified throughout Chapter 3 of the Draft Report/Statement.
Mitigation: Applicable to all Member Agencies.
The following mitigation measure is hereby adopted and will be implemented as set forth in
the Mitigation and Monitoring Reporting Plan in Exhibit A. The measure will mitigate the
above impact to a less -than -significant level.
Mitigation Measure 4.1: The Member Agencies shall coordinate construction activities
along selected alignments to identify overlapping pipeline routes, project areas, and
construction schedules. To the extent feasible, construction activities shall be coordinated to
consolidate the occurrence of short-term construction -related impacts.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
42
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Due to their short -tern nature and the inclusion of appropriate mitigation
measures as established in Chapter 3 of the Draft Report/Statement, the Phase 2 Program's
contribution to cumulative impacts on wastewater treatment capacity is not considerable.
b) Impact 4.5: Concurrent construction of NBWRP Phase 2 with other projects proposed in
the Sonoma, Napa, and Marin County area, and other water and wastewater infrastructure
projects, could result in cumulative long-term impacts to biological resources.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A.
Mitigation Measure: Implement Mitigation Measures 3.6.1 through 3.6.7 in Biological
Resources.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Mitigation measures for protection of the biological resources would minimize
project impacts and its contribution to cumulative impacts to less than cumulatively
considerable.
c) Impact 4.7: Concurrent operation of NBWRP Phase 2 with other projects could result in a
cumulatively considerable net increase in GHG emissions or criteria pollutants for which the
region is in non -attainment under applicable standards.
Mitigation: Applicable to all Member Agencies.
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A.
Mitigation Measure: Implement Mitigation Measures 3.9.1-1 a and 3.9.1-1 b, 3.9.3, and 3.9.4
in Air Quality.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Mitigation measures for greenhouse gas emissions would minimize project
impacts and its contribution to cumulative impacts to less than cumulatively considerable.
d) Impact 4.8: Concurrent operation of NBWRP Phase 2 with other projects proposed in the
Sonoma, Napa, and Marin County area and other water and wastewater infrastructure
projects could result in cumulative long-term impacts to cultural resources.
Mitigation: Applicable to all Member Agencies.
ix,
The following mitigation measures are hereby adopted and will be implemented as set forth
in the Mitigation and Monitoring Reporting Plan in Exhibit A.
Mitigation Measure: Implement Measures 3.14.1a through 3.14.1e in Cultural Resources
and Tribal Cultural Resources.
Findings: Based on the Final Report/Statement and the entire record before the City,
the Council finds, in accordance with CEQA Guidelines Section 15901(a)(1), that
changes, or alterations have been required in, or incorporated into, the project which
avoid or substantially lessen the significant environmental effect as identified in the
Final Report/Statement.
Rationale: Mitigation measures for protection of the cultural and historic resources would
minimize project impacts and its contribution to cumulative impacts to less than cumulatively
considerable.
4. Unavoidable Adverse Environmental Impacts
4.01. The Draft Report/Statement Chapters 3 and 5 disclosed other significant or potentially
significant environmental impacts that may not, or cannot, be avoided if the project identified
in the Final Report/Statement is approved. The Council finds that specific economic, legal,
social, technological, or other considerations make infeasible full mitigation of those impacts
and make project alternatives infeasible, or that changes are the responsibility of another
agency and should be adopted by such agency and not the City.
4.02. The Draft Report/Statement described that direct significant impacts attributable to the
Phase 2 Program can either be avoided through project design or if unavoidable, can be
reduced to a less -than -significant level through mitigation measures identified in the Draft
Report/Statement. Indirect, or secondary, impacts related to growth under the adopted
General Plans within the City's Project area may remain significant and unavoidable for
specific issue areas. Impacts related to adverse effects to archaeological resources, human
remains, and tribal cultural resources remain significant and unavoidable only for the Napa
Sanitation District Soscol Water Recycling Facility Covered Storage project.
A Significant and Unavoidable Impacts
1. Growth
a) Impact 5.1: The NBWRP Phase 2 would provide recycled water for urban, agricultural,
and environmental uses, and as such, would contribute to the provision of adequate water
supply to support a level of growth that is consistent with the amount planned and approved
within the General Plans of Marin, Sonoma and Napa counties. No appreciable growth
effects in population or employment would occur as a direct result of construction or
operation of the proposed facilities. However, development tinder the General Plans
accommodated by the proposed project could result in secondary environmental effects,
which include effects that could be significant and unavoidable.
No additional mitigation measures are required, as described in the findings and rationale
below. The Draft Report/Statement Chapter 5 describes that the City of Petaluma General
Plan EIR and the Sonoma County General Plan EIR have established mitigation programs
for these impacts; however, these impacts have been identified as remaining significant and
unavoidable after mitigation by the individual General Plan EIRs.
44
Findings: Based on the Final Report/Statement and the entire record before the City,
including the County and City environmental documents referenced in the Draft
Report/Statement, the Council finds that the provision of recycled water within its
service area under the Phase 2 Program, including the City's Projects, while consistent
with water supply planning within the service area, would enable growth under the
approved General Plans within each service area to occur, and as such, could
contribute to secondary effects of growth associated with buildout under approved
General Plans. Some of these secondary effects of growth may remain significant and
unavoidable within the City's service area. The Council finds, in accordance with
Section 15091(a)(2) that mitigation measures to address these impacts are within the
responsibility and jurisdiction of another public agency, and not the agency making the
finding. Such changes have been adopted by such other agency or can and should be
adopted by such other agency. Although some of these secondary effects of growth may
remain significant and unavoidable, specific economic, legal, social, technological or
other considerations, including region -wide benefits for water management, outweigh
the unavoidable adverse environmental effects. Therefore, the adverse environmental
effects are considered acceptable, and a Statement of Overriding Considerations has
been prepared. These findings are consistent with previous findings made by decision
making bodies with jurisdiction over these General Plans.
Rationale: As discussed in the Draft Report/Statement, no appreciable growth in population
or employment would occur as a direct result of the City's Projects. However, provision of
recycled water supply would assist in the provision of adequate water supplies to support
planned development under the approved General Plans of the City of Petaluma and Sonoma
County. Buildout under these General Plans could include secondary effects to the
environment, as identified in the City of Petaluma General Plan EIR and the Sonoma County
General Plan EIR and summarized in the Draft Report/Statement Chapter 5. The
environmental effects of growth most commonly identified as significant and unavoidable in
the service area include those identified in the City of Petaluma General Plan: increased
traffic impacts, noise impacts, and air quality impacts. The environmental effects of growth
identified as significant and unavoidable in the Sonoma County General Plan EIR include
alteration of visual character in the Sonoma Valley. These effects, as described in Chapter 5,
Growth Inducing Effects and Secondary Effects of Growth, of the Draft Report/Statement,
are proportional to the City Project's provision of recycled water and considered incremental
within the context of water management within the region. The project provides a level of
recycled water supply consistent with the assumptions of the approved City of Petaluma
General Plan and Sonoma County General Plan. As identified in the Draft Report/Statement
Chapter 5, the City of Petaluma General Plan EIR and the Sonoma County General Plan
EIR, have established mitigation programs for these impacts; however, these impacts have
been identified as remaining significant and unavoidable after mitigation by individual
General Plan EIRs.
5. Alternatives
5.01. CEQA requires that an Environmental Impact Report "describe a range of reasonable
alternatives to the project or to the location of the project, which could feasibly attain the
basic objectives of the project..." CEQA Guidelines Section 15126 (d). If a project
alternative will substantially lessen the significant environmental effects of a proposed
45
project, the decision maker should not approve the proposed project unless it determines that
specific economic, legal, social, technological, or other considerations... make the project
alternative infeasible." Public Resources Code Section 21002, CEQA Guidelines Section
15091(a)(3). The Report/Statement evaluated alternative approaches to accomplishing the
objectives of the project. The Findings with respect to the alternatives identified in the Draft
Report/Statement are identified is this section.
5.02. The Council finds that the Final Report/Statement describes a range of reasonable
alternatives to the Project. However, as described in Draft Report/Statement Chapter 6, the
alternatives to the Project either cannot feasibly achieve project objectives or will not avoid
or substantially lessen project impacts.
5.03. The objectives of the Phase 2 Program are to promote the expanded beneficial use of
recycled water and integrated water management in the North Bay region to improve local,
regional, and state water supply reliability; offset demands on potable water supplies; address
impaired groundwater basins; enhance local and regional ecosystems; maintain and protect
public health and safety; promote sustainable practices; and implement integrated water
management in an economically viable manner.
5.04. Two action alternatives were analyzed in the Draft Report/Statement at a project or
program level of detail in addition to the "No Project Alternative" and the "No Action
Alternative". Each of the action alternatives described below were developed to meet the
purpose, objectives, and need identified by the Authority.
No Project Alternative: Discussion of the No Project Alternative must examine the
existing conditions and reasonably foreseeable future conditions that would exist if the
project were not approved (CEQA Guidelines Section 15126.6(e)). Under the No Project
Alternative, the Phase 2 Program would not be implemented and none of the proposed
construction would occur nor would related water supply benefits result.
• No Action Alternative: Consideration of the No Action Alternative is required under the
NEPA. The No Action Alternative represents a "future -without -project" scenario: a
continuation of existing conditions for an estimation of the most reasonable future
conditions that could occur without implementation of the Proposed Action or Storage
Alternative. The No Action Alternative assumes that there is no joint project among the
Member Agencies. It represents the "current status" in which additional wastewater
treatment capacity and water recycling occurs strictly from the implementation of local
plans for expansion, and the potential need to develop additional potable water supplies
continues to be a regional challenge. In general, each Member Agency would continue to
implement individual water recycling projects, subject to the availability of funding and
completion of the environmental review process. The No Action Alternative would likely
result in a smaller increment of water recycling projects within the region.
• Proposed Action: The Phase 2 Program, or Proposed Action, builds upon the
Authority's Phase 1 infrastructure investments, which included $104 million in treatment,
distribution, and storage projects to develop recycled water as part of the region's water
supply portfolio. Building on Phase 1 technology and infrastructure investments, the
Phase 2 Program would deliver increased yield through expanded treatment, new
pipelines, and additional storage projects, while building resiliency into the region's long-
term water supply through the use of recycled water. The Proposed Action would provide
46
4,885 acre-feet per year of recycled water supply through construction of 19.8 miles of
pipeline, additional pump stations, 10 acre-feet of storage and 4.87 million gallons per
day of wastewater treatment plant tertiary treatment capacity.
• Storage Alternative. The Storage Alternative would include the Proposed Action, as
well as additional storage, treatment and distribution facilities to provide additional
operational flexibility within individual Member Agency service areas. This alternative
would include additional storage of 1,099 acre-feet, treatment (0.85 million gallons per
day) and distribution facilities (11.0 miles) beyond the Phase 2 Program to provide
additional operational flexibility within individual Member Agency service areas.
Implementation of this Alternative would result in an additional 1,934 acre-feet per year
of recycled water compared to the Proposed Action, providing a total of 6,819 acre-feet
per year of recycled water supply.
5.05. In addition to the alternatives of the project above, Chapter 6, Alternatives Analysis, of
the Draft Report/Statement examined the following alternatives to the Phase 2 Program:
Importation of Water; and Desalination.
A. Range of Alternatives and Findings
1. No Project Alternative
Discussion of the No Project Alternative must examine the existing conditions and
reasonably foreseeable future conditions that would exist if the project were not approved
(CEQA Section 15126.6(e)). Under the No Project Alternative, the Authority would not
implement construction of facilities identified under the Proposed Action to provide a
reliable recycled water distribution system to serve the water users in the District, Marin
Municipal Water District, Novato Sanitary District, City of Petaluma, Napa Sanitation
District, and City of American Canyon service areas.
Relationship to Project Objectives: Implementation of the No Project Alternative would not
provide the benefits of water reclamation which include supporting sustainable groundwater
management, offsetting potable water demand, enhancing ecosystems, promoting sustainable
practices, achieving economic viability, and protecting human health. Additionally, the No
Project Alternative would not improve current water reliability, either locally or regionally,
particularly during peal-, demand periods. The No Project Alternative would not comply with
State goals for water recycling and would not reduce or assist in management of discharges
to San Pablo Bay.
Environmental Impacts: Implementation of the No Project Alternative would avoid the
construction related impacts and operational impacts identified for the proposed project.
Most impacts associated with the proposed project would be reduced to a less -than -
significant level through the incorporation of mitigation measures identified in the Draft
Report/Statement, with the exception of significant and unavoidable impacts for growth
inducement (and archaeological resources for Napa Sanitation District). The No Action
Alternative would not provide the benefits of water reclamation, which include recycled
water use, potable supply savings, reduced reliance on surface and groundwater, reduced
groundwater pumping, and habitat enhancement. Under current conditions, the No Project
Alternative would not assist in alleviating current water reliability — either locally, regionally,
or State-wide — particularly during peak demand periods. The No Project Alternative would
47
not comply with State goals for water recycling and would not reduce or assist in
management of discharges to San Pablo Bay.
Findings: The No Project Alternative fails to achieve any of the project objectives,
which are directed at improving water supply reliability, sustainable groundwater
management, offsetting potable water demand, enhancing ecosystems, promoting
sustainable practices, achieving economic viability, and protecting human health.
Because it would not meet any of the project objectives and would fail to improve water
quality and groundwater overdraft, the No Project Alternative is not considered
environmentally superior.
2. No Action Alternative
In addition to the No Project Alternative, the Draft Report/Statement examines a No Action
Alternative, as required under NEPA. The No Action Alternative represents a "future -
without -project" scenario: a continuation of existing conditions for an estimation of the most
reasonable future conditions that could occur without implementation of any action
alternatives. The No Action Alternative assumes that there is no joint project among the
Member Agencies. It represents the "current status" in which additional wastewater treatment
capacity and water recycling occurs strictly from the implementation of local plans for
expansion, and the potential need to develop additional potable water supplies continues to
be a regional challenge. In general, each Member Agency would continue to implement
individual water recycling projects, subject to the availability of funding and completion of
the CEQA process. The No Action Alternative would likely result in a smaller increment of
water recycling projects within the region, as noted below. Additionally, the lack of federal
funding may delay or preclude the implementation of individual planned projects, due to the
need to increase user rates in order to provide funds for implementation. It is anticipated that
District would not implement the Napa Road Pipeline project, based upon the lack of funding
for construction.
Relationship to Project Objectives: Implementation of the No Action Alternative would
partially meet some the Phase 2 Program objectives, as it assumes that a smaller subset of
recycled water projects, providing approximately 1,187 acre-feet per year of recycled water,
would be implemented. The No Action Alternative would not satisfy any of the Phase 2
Program objectives to the degree provided by the Proposed Action and Storage Alternative
and would not meet the objective of implementing recycled water facilities in an
economically viable manner, as no supplemental State or federal funding would be available
to the Member Agencies. The No Action Alternative would have a subset of the impacts
identified in Chapter 3 of the Draft Report/Statement, primarily associated with the
construction of the facilities that individual Member Agencies would be able to implement
without the benefit of regional coordination or federal funding.
The No Action Alternative would not involve the capital costs associated with the Proposed
Action or Storage Alternative (described below). However, it would not be the most
economically superior alternative. Financial constraints would limit implementation to local
projects (e.g., Petaluma would only implement the Urban Recycled Water Expansion) and
these projects would be ineligible for federal or State funding.
Environmental Impacts: Under the No Action Alternative, projects in the Novato Sanitary
District, City of Petaluma, and City of American Canyon service areas would likely occur
and provide approximately 1,187 acre-feet per year of recycled water. This represents
approximately 3 percent of projected treated effluent discharged in 2025. Adverse
environmental impacts associated with the construction of pipelines and pump stations would
occur under the No Action Alternative, however to a lesser degree than the Proposed Action
and Storage Alternative. The impacts would likely be shorter in duration and would affect
fewer sensitive receptors than those expected under implementation of the Proposed Action,
given the difference in scale between the alternatives. In general, construction -related
emissions and impacts to air quality and increased ambient noise would result under the No
Action Alternative. Similarly, the No Action Alternative would potentially affect cultural,
surface water, or biological resources in these three service areas. The Phase 2 Program
service areas would experience some level of beneficial socioeconomic impact for all
alternatives, with the exception of the No Project Alternative. However, this beneficial
impact would be far more limited under the No Action Alternative.
Although the level of environmental impacts related to construction would be of a smaller
scale, the No Action Alternative would not result in the level of potable offset for imported
surface water, local surface water, and groundwater supplies that would be provided under
the Proposed Action and Storage Alternative. Similarly, it would not substantially reduce the
amount of treated effluent discharged to tributaries of North San Pablo Bay. Over time, it is
expected that demand pressures on imported surface water, local surface water, and
groundwater supplies would increase, and current water supply and delivery reliability issues
would be exacerbated as growth under the approved General Plans within the Phase 2
Program service areas occurs. The No Action Alternative would not take full advantage of a
local, sustainable, and energy efficient water supply implementation.
Findings: Because it would not substantially offset potable demand or reduce
groundwater pumping and would not significantly reduce or assist in management of
effluent discharge to San Pablo Bay, the No Action Alternative is not considered
environmentally superior.
3. Proposed Action — Phase 2 Program
As noted above, the Proposed Action (Phase 2 Program) builds upon the Authority's Phase 1
infrastructure investments, which included $104 million in treatment, distribution, and
storage projects to develop recycled water as part of the region's water supply portfolio.
Building on Phase 1 technology and infrastructure investments, the Proposed Action would
deliver increased yield through expanded treatment, new pipelines, and additional storage
projects, while building resiliency into the region's long-term water supply through the use of
recycled water.
Collectively, the Phase 2 Program would provide 4,885 acre-feet of new recycled water for
beneficial use and would include: installation of 19.8 miles of new pipelines, construction of
facilities onsite at the existing waste water treatment plants to provide an additional 4.87
million gallons per day of tertiary treatment capacity, and development of approximately
10.1 acre-feet of storage, primarily for agricultural use. As with the Phase 1 projects, Phase 2
Program elements would offset drinking water that would no longer be used for non -potable
uses, thus ensuring the highest quality water is reserved for potable uses. The Proposed
Action includes the District's Napa Road Pipeline Project.
Relationship to the Project Objectives: The Proposed Action would be consistent with the
Phase 2 Program's stated objectives, as summarized above. From an economic standpoint,
projected capital costs associated with the Proposed Action are estimated at $66.0 million,
with annual operations and maintenance costs estimated a $1.3 million (Brown and Caldwell,
2017). This represents a lower cost than the Storage Alternative (described below).
Environmental Impacts: Based on the comparison of environmental effects in Appendix 6 of
the Draft Report/Statement, the Proposed Action is the environmentally superior alternative
in almost all resource areas. The Draft Report/Statement recommends measures to mitigated
significant impacts to a less -than -significant level, with the exception of identified significant
and unavoidable impacts related to the Phase 2 Program's contribution to potential secondary
effects of growth associated with development under the approved General Plans within the
region, and cultural resource impacts at the Napa Sanitation District Covered Storage project
(Option A). Aside from that, the Proposed Action and Storage Alternative, would have
similar potential for impact. Effects on natural resources would be in proportion to the size
and number of facilities proposed. Most of the adverse environmental impacts would be
associated with construction activities. The Proposed Action requires construction of the least
amount of infrastructure compared to the Storage Alternative; therefore, it would result in
less construction -related impacts. The Proposed Action requires the least amount of storage,
making use of existing storage or land available at the wastewater treatment plants.
Findings: The Proposed Action would achieve the project objectives with least
environmental impacts and costs, although would not provide the benefits from
increased storage that would be offered by the Storage Alternative. The Proposed
Action would have the capacity to provide recycled water to offset potable demand and
improve water supply reliability. The Proposed Action appears to best meet the stated
objectives of the project, for the following reasons:
1. The Proposed Action provides offset for urban and agricultural demands on potable
supplies, although not to the degree provided by the Storage Alternative.
2. The Proposed Action would provide recycled water to enhance local and regional
ecosystems, as would the Storage Alternative and to a greater degree than the No
Action Alternative.
3. The Proposed Action would improve local and regional water supply reliability,
although not to the degree provided by the Storage Alternative.
4. The Proposed Action would maintain and protect public health and safety, as would
all of the alternatives.
5. The Proposed Action would promote sustainable practices by providing recycled
water, although not to the degree provided by the Storage Alternative.
6. The Proposed Action would promote sustainable management of groundwater basins
by offsetting groundwater withdrawal, although not to the degree provided by the
Storage Alternative.
7. The Proposed Action is less expensive than the Storage Alternative, but not the No
Action and No Project alternatives.
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4. Storage Alternative
This alternative would include the Proposed Action, as well as additional storage, treatment
and distribution facilities to provide additional operational flexibility within individual
Member Agency service areas. The Storage Alternative would include construction of: 1,099
acre-feet of storage facilities in service areas of the District (49 acre-feet of tertiary storage at
the Mulas site), Novato Sanitary District (150 acre-feet of secondary storage), City of
Petaluma (300 acre-feet of secondary storage) and Napa Sanitation District (600 acre-feet
tertiary storage); additional tertiary treatment capacity at Novato Sanitary District recycled
water facility (0.85 million gallons per day); and additional distribution facilities (11.2 miles
of pipeline). Construction of storage facilities would have a construction footprint of
approximately 79 acres. Implementation of this Alternative would result in an additional
1,934 acre-feet per year of recycled water supply compared to the Proposed Action,
providing a total of 6,819 acre-feet per year of additional recycled water supply that would be
available for beneficial use.
Relationship to the Project Objectives: The Storage Alternative would be consistent with the
Phase 2 Program stated objectives, with one exception. It would provide a greater amount of
recycled water to offset potable demand and increase water supply reliability. However, from
an economic perspective, the Storage Alternative is not considered economically viable, as
the storage elements which distinguish this alternative from the Proposed Action would not
receive supplemental State and federal funding. This would represent an additional $125.9
million in construction costs and $1.9 million in annual operations and maintenance costs
which the affected Member Agencies would need to cover with local funds or other
undetermined funding sources.
Environmental Impacts: The Storage Alternative is not the environmentally superior
alternative in most resource areas given the increased physical magnitude of its storage
elements. For instance, this alternative would have the potential to disturb an additional 79
acres when compared to the Proposed Action. This would generate more substantial impacts
to resources, such as biological resources, cultural resources, and water quality (i.e., erosion).
Also, due to additive nature of the Storage Alternative (i.e., the Proposed Action plus
additional storage reservoirs) and potential for overlapping construction activities, it has been
determined that this alternative would have significant and unavoidable impacts to air quality
due to the potential exceedance of nitrogen oxides (NOx) significance thresholds. Therefore,
while the nature of the impacts would be of a similar sort as the Proposed Action, the severity
of those impacts would be greater under the Storage Alternative.
Findings: Although it would provide greater offset potable demand or reduce
groundwater pumping and reduce or assist in management of effluent discharge to San
Pablo Bay, the Storage Alternative is not considered environmentally superior due to
the greater magnitude of the potential environmental impacts, as explained above.
5. Importation of Water
Under this alternative, potable or treated recycled water would be imported to Sonoma, Napa,
or Marin counties from another community not participating in the Authority, such as
Windsor, Yountville, Petaluma, Rohnert Park, Vallejo or Santa Rosa. For recycled water
importation, a pipeline would be constructed from a sanitation district of another community
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to the users in Sonoma, Napa, or Marin, with booster pump stations to maintain sufficient
water pressure.
Even if water were imported from the nearest community, this alternative would require
construction of a large conveyance pipeline network to serve the Member Agency services
areas. Some pipelines would approach 65 miles in length. This alternative was analyzed for
the three criteria that were used to assess the alternatives of the project above.
For potable water importation into the region, expansion of the Department of Water
Resources North Bay Aqueduct would be necessary. The capacity of the North Bay
Aqueduct is currently fully allocated. This would also entail identification and acquisition of
additional State Water Project entitlements to serve additional supplies to the Authority
service areas. For cost comparison, the Phase 1 Feasibility Study (CDM, 2008) included
expansion of the North Bay Aqueduct to provide 1,937 acre-feet per year of imported water
to Napa MST area. Facility expansion would require a series of new pipeline alignments and
booster pump station from Barker Slough.
Relationship to Project Objectives: Importation of recycled water into the Phase 2 Program
service area would have the potential to meet some of the objectives, in that it would provide
a recycled water supply to offset the use of potable supplies for irrigation. However, it is not
anticipated that this alternative would provide a more sustainable or cost-effective water
supply, given the pipeline distances involved.
Fundamentally, this alternative would not offset potable supplies currently used for
irrigation. Rather, they would continue to use imported potable supplies to meet irrigation
demands. These alternatives would not reduce the amount of treated effluent discharge to
tributaries of North San Pablo Bay and would not provide a reliable habitat enhancement
water supply for the Lower Novato Creek or Bel Marin Keys restoration projects. Additional
importation of potable supplies would not improve the reliability to local water supplies, as
SWP supplies are subject to drought year reliability.
Environmental Impacts: Importation of recycled water from an outside community would
incur similar impacts as the alternatives discussed above. Impacts associated with pipeline
construction would include short-term impacts to aesthetics, air quality, biological resources,
cultural resources, hazards and hazardous materials, water quality, land use, noise, public
services and utilities, and traffic. Pipeline construction could also result in temporary and
permanent disturbance to jurisdictional wetlands and other waters, riparian habitat, special -
status plant and animal species, and known or unknown cultural resources.
This alternative would cause lesser impacts to surface hydrology and reduce groundwater
pumping; however, these effects would occur outside the Authority service areas and would
not address groundwater pumping issues within these areas. Similarly, importing recycled
water would not reduce wastewater discharge within the Authority service areas, since
recycled water sources would lie outside these areas.
Importation of potable water would require additional infrastructure, which would result in
construction -related environmental impacts and a potential increase in potable demand
outside the Authority service areas. Importing potable water would not reduce wastewater
discharge within these areas.
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Economic Feasibility: Under this alternative, the Member Agencies would face the
institutional constraints of developing an agreement to obtain either recycled water or potable
water supplies, prepare the cost estimates associated with purchase of the water, and sharing
the costs of constructing new distribution infrastructure. Importing water from outside
communities to individual service areas could require pipelines in excess of what would be
required to develop recycled water supplies for Member Agencies. For example, if water
were imported to the District from a community located at greater distances from Napa or
Sonoma, such as Santa Rosa or Windsor, approximately 55 to 65 miles of pipeline would
need to be constructed. It would require approximately 20 to 30 miles of pipeline to connect
the District to the Novato Sanitary District Recycled Water Facility, or the Napa Sanitation
District Soscol Water Recycling Facility. For cost comparison, the Phase 1 Feasibility Study
(CDM, 2008) included expansion of the North Bay Aqueduct to provide 1,937 acre-feet per
year of imported water to Napa MST area. Facility expansion would require a series of new
pipeline alignments and booster pump station from Barker Slough. The cost of long-term
water supply is assumed to be approximately $12.1 million, a new distribution system cost is
approximately $49.8 million, and the North Bay Aqueduct expansion cost is
approximately$47.3 million (SCWA/USBR, 2008 updated to 2016 dollars). Napa County
also estimates legal and administrative fees to implement this alternative would be
approximately $10 million. Therefore, total costs would be approximately $119.1 million,
which does not include annual operations and maintenance costs. The costs for 1,937 acre-
feet of water to the MST area would be approximately $2,389 per acre foot (Brown and
Caldwell, 2017).
Findings: This alternative would not substantially meet the project objectives, would
also result in substantial environmental impacts above and beyond those of the
Proposed Action, would increase the overall cost of the Phase 2 Program, and would not
substantially reduce significant unavoidable impacts that cannot otherwise be
mitigated. Therefore, it is not considered feasible or a desirable alternative to the
Proposed Action.
6. Desalination
Desalination of saline water from San Pablo Bay would provide a reliable supply of water for
irrigation. Currently, reverse osmosis treatment is the most cost-effective and feasible
treatment option for desalination. The desalination plant could be sized and operated to
provide a continuous source of supply. Due to the higher salinity of the source water and
depending upon the efficacy of the reverse osmosis process, the high salinity (approximately
35,000 milligrams per liter of total dissolved solids), a flow of 5,500 acre-feet of source
water would produce approximately 2,750 acre-feet of desalinated water.2 As such, higher
feed pressure and need to increase the treatment capacity would result in a high electric
power requirement.
The Marin Municipal Water District explored the viability of a desalination project that
would provide supply to the Marin Municipal Water District Service Area. Construction of a
5.0 -million gallons per day desalination plant was proposed, with the ability to expand
capacity in 5.0 -million gallons per day increments, up to a maximum capacity of 15 million
2 Assuming 50 percent efficacy, the reverse osmosis process would generate 50 percent desalinated water of the
source water.
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gallons per day. The source water from San Pablo Bay would undergo several treatment
processes in the facility, including solid removal, reverse osmosis, and disinfection and
addition of materials for taste. The potable product water generated at the facility would have
been 50 percent of the source water flowing into the facility. The brine produced in the
reverse osmosis process would be blended with treated wastewater prior to discharge into the
Bay. The solids would be disposed in the Redwood Landfill north of Novato.
Ability to Meet Project Objectives: This alternative would have the potential to meet some of
the Phase 2 Program's stated objectives. However, desalination would not meet objectives to
provide a reliable regional and local supply for habitat enhancement, would increase
discharges to San Pablo Bay related to brine disposal, and would not improve the long-term
sustainability of the regional water system or enhance sensitive ecosystems. Also, the
construction of such a facility and follow-on operations and maintenance costs, as well as
potential legal costs stemming from potential opposition, would exceed that of either the
Proposed Action or Storage Alternative. Additionally, a substantial distribution system would
be required to serve all Member Agencies.
Environmental Impacts: The environmental impacts associated with the desalination
alternative would occur during construction of the project facilities similar to other
alternatives. Construction activities would include construction of the reverse osmosis plant,
pipeline, and waterside facilities. Environmental impacts to aesthetics, ambient noise, and
water quality are typically associated with desalination facilities.
Long-term effects would include water quality impacts from the discharge of the brine
generated by the desalination process. The discharge would be dispersed by currents in San
Pablo Bay, affecting temperature, nutrients, and turbidity and, therefore, the abundance and
diversity of marine organisms. Areas of potential concern in relation to marine water quality
include temperature, dissolved oxygen, or salinity; possible localized changes in currents or
in turbidity, due to the presence of intake pipes on the ocean bottom or due to the
pumping/discharge of effluents from the desalination plant; and possible changes in
dispersion of sewage plume effluent due to added discharge of brine effluent from the
desalination plant. As such, a desalination project would require a baseline study to establish
offshore conditions prior to desalination plant startup; and perform quarterly marine water
quality/biological monitoring in accordance with the San Francisco Bay Regional Water
Quality Control Board requirements during operational phase. Implementation of a
desalination plant would also require construction of new facilities, which would incur
construction-related impacts similar to those anticipated under the Proposed Action.
Therefore, the desalination alternative would have a similar level of temporary environmental
impact when compared to the alternatives examined.
Economic Feasibility: The capital costs and operations and maintenance costs could be
prohibitive: the estimated capital cost of the Marin Municipal Water District plant was
estimated at $121.1 million, with annual operations and maintenance costs as high as $7.1
million. Further, there are high energy costs associated with this alternative in addition to the
costs for land acquisition, construction of seawater intake and potentially a brine water
discharge line and brine water outfall. In addition, considering the extremely high cost for
desalination, coupled with its greater dependency on large quantities of power, this
alternative was not carried forward for further analysis.
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Findings: Because this alternative would not substantially meet the Phase 2 Program
objectives, would also result in substantial environmental impacts above and beyond
those of the Proposed Action, would increase the overall cost of the Phase 2 Program,
and would not substantially reduce significant unavoidable impacts that cannot
otherwise be mitigated. Therefore, it is not considered feasible or a desirable alternative
to the Proposed Action.
7. Environmentally Superior Project Alternative
The Lead Agency is not required by CEQA or NEPA to adopt an environmentally superior
alternative that will not feasibly attain project objectives or reduce environmental effects. In
the process of selecting the environmentally superior alternative, the Authority has evaluated
several factors, including environmental effects, engineering and operational criteria, system
reliability and flexibility, cost, and efficient coordination with other water recycling efforts,
in determining which alternative is the best project to approve and implement.
CEQA and NEPA require that a Lead Agency demonstrate why a project, or an alternative is
selected. This is provided in the findings document. The Proposed Action has been identified
as the most environmentally, equitable, and financially sustainable alternative that will
effectively fulfill the NBWRP Phase 2 objectives. The Proposed Action would provide
adequate conveyance, pumping, and storage capacity that would result in 4,885 acre-feet per
year of recycled water, thereby offsetting a substantial amount of potable demand and
reducing wastewater discharge to San Pablo Bay. The Proposed Action would achieve all of
the program objectives with the least environmental impacts and costs, although it would not
provide the benefits from increased storage provided under the Storage Alternative. The
Proposed Action would have the capacity to provide recycled water to offset potable demand
and improve water supply reliability. The Proposed Action appears to best meet the stated
objectives of Phase 2 Program for the following reasons:
1. The Proposed Action provides offset for demands on potable supplies, although not to the
degree provided by the storage elements of the Storage Alternative.
2. The Proposed Action would provide the recycled water to the Lower Novato Creek and
Bel Marin Keys restoration projects.
3. The Proposed Action would have reduced facility related impacts, particularly related to
new storage facilities. The Proposed Action would avoid potential significant and
unavoidable air quality impacts related to the Storage Alternative. Additionally, impacts
related to disturbance of approximately 79 acres to construct storage would be avoided.
These include impacts in the issue areas of water quality, biological resources, cultural
resources, and agricultural resources.
4. The Proposed Action would improve local, regional, and state water supply reliability,
although not to the degree provided by the storage elements of the Storage Alternative.
5. The Proposed Action would maintain and protect public health and safety, as would all
alternatives.
6. The Proposed Action would promote sustainable practices by providing recycled water,
although not to the degree provided by the storage elements of the Storage Alternative.
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7. The Proposed Action would promote sustainable management of groundwater basins by
providing reliable water supply options for non-potable uses that would otherwise be
drawn from local groundwater sources, although not to the degree provided by the
storage elements of the Storage Alternative.
8. The Proposed Action is the least expensive, with the exception of the No Action and No
Project alternatives.
The Proposed Action would improve water supply reliability with a major emphasis on local
water use. Water reuse would provide environmental benefits by offsetting surface and
groundwater use, reducing the need to develop additional water supplies, and reducing
discharge to the Bay. Although an incrementally smaller amount of recycled water would be
available, it would represent an economically feasible alternative. Implementing the
Proposed Action would cost 56 percent less than the Storage Alternative. Since the Proposed
Action would represent the lower cost Action Alternative and would be implemented with
federal and State funding support, it is the most cost-effective for the Member Agencies. The
Proposed Action would require the least amount of new storage and rely on increasing
treatment capacities at existing facilities and using ponds on existing wastewater treatment
plant sites.
Compared to the Proposed Action, the Storage Alternative would increase regional storage
options and provide incrementally more recycled water treatment and distribution facilities,
albeit with greater costs for the Member Agencies, construction impacts, and greater
potential for conflict with natural resources. Therefore, the Storage Alternative is not the
most environmentally superior alternative.
In general, both the Proposed Action and the Storage Alternative would meet the stated
Phase 2 Program objectives and comply with applicable regulations and policies. In relation
to the stated program objectives and environmental impacts, the Storage Alternative would
involve the greatest capital costs and maximum adverse environmental impacts due to the
proportion of facilities that would be required. The benefit of reducing the amount of
wastewater discharged to the Bay is counterbalanced by the environmental detriment caused
during construction and facility operation; therefore, the Storage Alternative is not
considered environmentally superior.
Based on the criteria set previously in this chapter for the alternatives analysis, with respect
to its ability to meet the stated Phase 2 Program objectives, its potential environmental
impacts, and the cost of implementation, the Proposed Action is identified as the
environmentally superior alternative. The Proposed Action would achieve the project
objectives, result in lesser environmental impacts, and would incur lower costs. The
Proposed Action would thus achieve all of the Phase 2 Program objectives while
simultaneously providing a means for Member Agencies to achieve water management goals,
meet future water demand, augment surface water use, and sustain environmental and water
quality.
6. Adoption of Mitigation and Monitoring Reporting Plan
6.01. Pursuant to Public Resources Code Section 210821.6, the Council hereby adopts a
mitigation monitoring and reporting plan (Exhibit A) for the mitigation measures under the
jurisdiction of the City that were included in the Final Report/Statement. The Council adopts
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this plan pursuant to CEQA Guidelines Section 15096 (g)(1), which states that a Responsible
Agency has responsibility for mitigating or avoiding only the direct or indirect environmental
effects of those parts of the project which it decides to carry out, finance, or approve. The
contents of this plan are set forth in Exhibit A, attached hereto and incorporated herein by
this reference. This mitigation monitoring and reporting plan is designed to ensure
compliance with the mitigation measures adopted for the City's Projects described in the
Final Report/Statement. It will be implemented in accordance with all applicable
requirements of the CEQA Statute, the State CEQA Guidelines, and the City's Procedures
for the Implementation of CEQA.
7. Statement of Overriding Considerations
7.01. The Council has weighed the benefits of the Phase 2 Program against the unavoidable
adverse environmental effects identified in the Final Report/Statement and hereby determines
that those benefits outweigh the risks and adverse environmental impacts. The Council
determines that these environmental impacts are acceptable and hereby finds that there are
overriding considerations that justify the Council's approval of the components of the Phase
2 Program that are under its jurisdiction, which are identified in the findings above.
7.02. Pursuant to Public Resources Code Section 21081 and California Environmental
Quality Act Guidelines Section 15093, Council adopts and makes the following Statement
of Overriding Considerations regarding the remaining unavoidable impacts from the
City's Increase Ellis Creek Water Recycling Facility Project, the Urban Recycled
Water Expansion Project, and the Agricultural Recycled Water Expansion Program
(Phases 1 and 2), which is part of the Phase 2 Program, and the anticipated economic, legal,
social, technological, environmental, and other benefits.
1. In considering the proposed project, the City has weighed the benefits of the Phase 2
Program against its unavoidable environmental risks and potentially significant
adverse impacts. The City hereby determines that the benefits of the Phase 2 Program
outweigh its unavoidable environmental risks and unmitigated adverse impacts. The
City finds that to the extent that the identified significant or potentially significant
adverse impacts have not been avoided or substantially lessened, there are specific
economic, legal, social, technological or other considerations that support approval of
Phase 2 Program.
2. The City specifically adopts this Statement of Overriding Considerations and finds
that: a) as part of the approval provisions, the Proposed Project has eliminated or
substantially lessened all significant effects on the environment where feasible; b) the
remaining unavoidable impacts of the Proposed Project are acceptable in light of the
environmental, economic, legal, social, technological, and other considerations set
forth herein, because the benefits of the Phase 2 Program outweigh the significant and
adverse impacts of the Phase 2 Program, as noted below.
3. The City finds that each of the overriding considerations set forth below constitutes a
separate and independent ground for finding that the benefits of the Phase 2 Program
outweigh its significant adverse environmental impacts and is an overriding
consideration warranting approval of the Phase 2 Program. The City finds that
substantial evidence in the record supports its findings in this regard.
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4. The Phase 2 Program will have certain significant effects that are identified in the
Final Report/Statement but will not be fully mitigated. These effects include
secondary impacts related to the implementation of approved General Plans within
the City of Petaluma's service area. The environmental effects of growth most
commonly identified as significant and unavoidable in the service area include those
identified in the City of Petaluma General Plan EIR: increased traffic impacts, noise
impacts, and air quality impacts. The environmental effects of growth identified as
significant and unavoidable identified in the Sonoma County General Plan include
alteration of visual character in the Sonoma Valley. These effects are summarized in
Chapter 5, Growth Inducing Effects and Secondary Effects of Growth, and described
more fully in Appendix 5 of the Draft Report /Statement. The Proposed Project
provides a level of recycled water supply consistent with the assumptions of the
approved City of Petaluma General Plan and Sonoma County General Plan. As noted
in these General Plans, some of these impacts will be reduced by identified mitigation
measures, but the impacts may not be reduced to a less -than -significant level. As
noted in Resolution No. 2008-084 N.C.S, Findings for the City of Petaluma General
Plan 2025, in Section VIII, Statement of Overriding Considerations, D.16, the City's
General Plan establishes a program to provide water supply and wastewater treatment
capacity sufficient to serve the population needs of buildout under the Plan in an
environmentally and fiscally responsible fashion through water recycling and water
conservation which lessens or eliminates the routine use of additional groundwater or
Sonoma County Water Agency supply
5. The City Council has carefully considered the Phase 2 Program described in the Draft
Report/Statement and the unavoidable adverse environmental impacts associated with
it and hereby identifies the following environmental, economic, legal, social,
technological, and other benefits of the project:
i. Implementation of the City's Projects would provide potable offset of urban and
agricultural demands on potable supplies, including surface and groundwater
supplies.
ii. Implementation of the Proposed Project would reduce the amount of treated
effluent discharged to North San Pablo Bay.
iii. Implementation of the Proposed Project would be consistent with State and
local policies regarding the implementation of recycled water to provide potable
water supply offset.
iv. Implementation of the Proposed Project would be consistent with recycled
water polices identified in approved General Plans within the proposed service
area.
V. Implementation of the Proposed Project would reduce groundwater depletion by
providing an alternative source of water for irrigation. Reducing groundwater
depletion will benefit other users of area water, and help ensure the long-term
viability of existing agricultural, residential, open space, and other uses in the
Project area.
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vi. Implementation the Proposed Project would reduce peak demand for water in
the summer months. Reducing peak demand will benefit other users of water in
the summer months, including threatened and endangered species.
vii. The Proposed Project would be implemented under Reclamation's Title XIV
program, which provides funding for recycled water programs that have
demonstrated regional coordination and provide multiple benefits.
7.03. The City Council has weighed the above benefits of the Proposed Project against its
unavoidable environmental risks and the adverse environmental effects that are described in
the Final Report/Statement and hereby determines that the above benefits outweigh the risks
and adverse effects. The City Council, therefore, determines that these risks and adverse
environmental effects are acceptable.
Be It Further Resolved, based on the record of this proceeding and the foregoing findings
and determinations, the City Council of the City of Petaluma does hereby take the following
actions:
1. Approval of the North Bay Water Reuse Program Phase 2. The Council approves and
declares its intent to carry out the City's Projects under its jurisdiction, as described in
Chapter 2, Project Description, of the Draft Report/Statement.
2. Adoption of Mitigation Monitoring and Reporting Plan. The Council adopts the
mitigation monitoring and reporting plan as set forth in Exhibit A and authorizes and
directs the City Manager or his assigns to take all appropriate steps in accordance
with such plan to ensure that the required mitigation measures are carried out.
3. Statement of Overriding Considerations for the North Bay Water Reuse Program
Phase 2. The Council adopts the Statement of Overriding Considerations set forth
above after finding that the City's Projects has certain environmental, economic,
legal, social, technical, and other benefits that make the unavoidable adverse
environmental impacts associated with it acceptable, and that mitigation of certain
environmental impacts is in the jurisdiction of other agencies.
4. Notice of Determination. The Council directs the City Manager or his assigns to file
a Notice of Determination with the County Clerk and the State Clearinghouse in
accordance with the provisions of the CEQA Statute, the State CEQA Guidelines, and
the City's Procedures for the Implementation of CEQA advising of the Council's
approval of the City's Projects described in Chapter 2, Project Description, of the
Draft Report/Statement.
5. Custodian of Documents. The Council is the custodian of the documents or other
material which constitute the record of proceedings upon which this Council's
decision herein is based. These documents may be found at the City of Petaluma, 11
English Street, Petaluma, CA 94952.
W
Attachment 2
EXHIBIT A
Mitigation Monitoring and Reporting
Plan/Program
This report summarizes the mitigation measures that would be integrated into the North Bay Water
Reuse Program (NBWRP) Phase 2 to reduce the potentially significant impacts to a less -than -
significant level. These mitigation measures are fully described in the NBWRP Phase 2 Draft
Environmental Impact Report/Environmental Impact Statement (EIR/EIS). References included in
this report to impacts and resource area analyses are referring to those impacts and analyses
included in the NBWRP Phase 2 Draft EIR/EIS. Also provided is a Mitigation Monitoring and
Reporting Plan/Program (MMRP) organized in a tabular format, which identifies mitigation
measures that apply to projects proposed by each Member Agency, including the Sonoma Valley
County Sanitation District's Napa Road Pipeline Project, and are incorporated into the project. The
tables following each measure provide a breakdown of how the mitigation measure would be
implemented, who would be responsible, and when it would occur. The tables consist of five
column headings which are defined as follows:
• Implementation Procedure: If needed, this column provides additional information on how
the mitigation measures would be implemented.
Monitoring and Reporting Actions: This column contains an outline of the appropriate steps
to verify compliance with the mitigation measure.
• Monitoring Responsibility: This column contains an assignment of responsibility for the
monitoring and reporting tasks.
• Monitoring Schedule: This column provides a general schedule for conducting each
monitoring and reporting task, identifying where appropriate both the timing and the
frequency of the action.
• Responsible Agency: This column states the agency, which would be responsible for
implementing the mitigation measure. If the measure applies to all the Member Agencies,
the responsible agency noted is "Member Agency". If the measure applies to specific
agencies, the name of the agency or agencies is/are noted in the column.
A-1 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Surface Hydrology
Impact 3.3.1: Changes in Drainage Patterns
Project construction and operation could alter the existing drainage patterns in a manner that
would result in substantial erosion, siltation, or flooding on- or off-site.
Mitigation Measure 3.5.1: NPDES Construction Activity Stormwater
Permit
Refer to Impact 3.5.1 in Section 3.5, Water Quality.
Mitigation Measure 3.3.1a: Stream and Drainage Crossings
The Member Agencies shall implement the following measure during pipeline installation at
stream or drainage crossings:
Schedule construction during the dry season and so as to avoid storm events to the extent
feasible, or as required by regulatory permits (approximately June 15 to October 15);
2. Pipelines suspended from bridges shall be designed such that they do not interfere with
conveyance of flows beneath the bridge, as determined by a certified professional engineer;
3. At in -road drainage crossings where drainages pass beneath the road in existing culverts, and
where there is sufficient cover between the culvert and road surface, the new pipeline will be
installed above the existing culvert without removing or disturbing it. If the pipeline must be
installed below the existing culvert, then the culvert will be cut and temporarily removed to
allow pipeline installation.
4. If disturbance of the existing culvert is required, sediment curtains upstream and downstream
of the construction zone shall be placed to prevent sediment disturbed during trenching
activities from being transported and deposited outside of the construction zone.
5. Employ short-term drainage diversion and control measures such as sandbags, dikes, pumps,
or other means; and
6. Following construction, restore the construction area to pre-existing conditions.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Schedule construction
1. Incorporate
1. Member Agency
1. Prior to and
Member Agency
to avoid storm events.
schedule into
2. Contractor/
t/
During
Construction
2. Integrate pipelines
specifications.
Member Agency
designs that do not
3. Contractor!
2. Prior to
interfere with
2. Incorporate pipeline
Construction
conveyance of flows
designs into
Member Agency
beneath bridges.
construction
4. Contractor/
3. During
Construction
specifications.
Member Agency
North Bay Water Reuse Program Phase 2 A-2 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
3. Install new pipeline
3. Incorporate
5. Contractor/
4. During
Agency
above existing culverts
construction method
Member Agency
Construction
Napa Sanitation
without removing or
into construction
Member Agency
During
District
disturbing them.
specifications.
6. Contractor/
5. During
infrastructure.
Member Agency
Construction
4. If disturbance of the
4. Incorporate
existing culvert is
construction method
6. After
required, place
into construction
Construction
sediment curtains
specifications.
upstream and
downstream of the
5. Incorporate use of
construction zone.
these measures into
construction
5. Employ short-term
specifications.
drainage diversion and
control measures such
6. Inspect final site
as sandbags, dikes,
conditions after
pumps, or other
construction and
means.
verify its condition is
it equivalent to that
6. Restore site to pre-
prior to construction.
existing conditions.
Incorporated into
construction
specifications.
Mitigation Measure .3.3.1 b: Impervious Surface Area — WRF
Improvements
Design of proposed facilities, including tertiary facilities and storage at Soscol WRF, shall be
integrated into existing drainage infrastructure such that drainage patterns do not result in new
erosion, siltation, or flooding. Design shall include appropriate collection and conveyance of
stormwater to WWTP infrastructure, per each facility's NPDES Permit requirements for
stormwater.
Implementation
Monitoring and
Monitoring
Monitoring
Responsible
Procedure
Reporting Actions
Responsibility
Schedule
Agency
1. Incorporate design of
1. Incorporate design
1. Contractor/
1. Prior to and
Napa Sanitation
proposed facilities into
into construction
Member Agency
During
District
existing drainage
specifications.
Construction
infrastructure.
Impact 3.3.2: Reduction in flows within Stream Channels
Project operation would reduce the amount of annual discharge due to the recovery and use of
recycled water that is currently discharged.
Mitigation Measure 3.3.2: SWRCB Change of Use Petition
Member Agencies shall complete SWRCB Change of Use Petition for use of recycled water,
pursuant to Section 1700 of the California Water Code. Direct diversions of less than 3.0 cubic
feet per second (cfs) or storage of less than 200 AFY may qualify for a minor petition, as
appropriate. Member Agencies shall complete SWRCB Change of Use Petition process prior to
recycled water distribution.
North Bay Water Reuse Program Phase 2 A-3 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Monitoring and
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
1. Member Agency
1. Prior to
Member Agency
1. Comply with Section
1, Complete SWRCB
1. Member Agency
1. Prior to recycled
Member Agency
1700 of the California
Change of Use
water distribution.
Water Code.
Petition for use of
modification and/or
recycled water.
Impact 3.3.3: Flooding and Effects to Surface Waters
The proposed action could expose the public or structures to the risk of flooding due to placement
of facilities within the one percent annual chance of exceedance flood level. The proposed action
would also change the amount of discharge to local surface waters.
Mitigation Measure 3.3.1 a: Stream and Drainage Crossings
Refer to Impact 3.3.1.
Mitigation Measure 3.3.3: Floodplain Hydraulic Analysis for Seasonal
Storage
As part of the design process for seasonal storage, Member Agencies shall demonstrate through
hydrologic and hydraulic analyses that the proposed modification and/or encroachment would not
result in an increase in flood levels during the occurrence of the one percent annual chance of
exceedance flood event. Analysis shall be performed by a California licensed engineer in
accordance with standard engineering practices.
Implementation
Monitoring and
Actions
Monitoring
Responsibility
Monitoring
Schedule
LeponsibleProcedureReporting
ncy
1. Demonstrate through
1. California licensed
1. Member Agency
1. Prior to
Member Agency
hydrologic and
engineer shall
construction
hydraulic analyses
perform analysis.
that the proposed
modification and/or
encroachment would
not result in an
increase in flood
levels during the
occurrence of the one
percent annual
chance of
exceedance flood
event.
A_ACJH/ LVaVou.Vv
North Bay Water Reuse Program Phase 2 Y August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Impact 3.3.4: Flooding — Sea Level Rise
Sea -level rise could affect operation of project facilities.
Mitigation Measure 3.3.4: Design Measures Addressing Sea Level
Rise
Design of proposed facilities shall consider sea level rise potential, and shall include appropriate
measures in facility siting and design to address potential impacts related to sea level rise, similar
to those applied to facility installation within 100 -year flood plains. Design measures may
include, but are not limited to: facility siting, access placement, access vault extension above
projected water elevation, water tight vaults, and site protection.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Design facility to
1. Incorporate design
1. Member Agency
1. Prior to
Member Agency
address potential
requirements into
construction
impacts related to
construction
sea level rise. Design
specifications.
measures may
include but are not
limited to: facility
siting, access
placement, access
vault extension above
projected water
elevation, water tight
vaults, and site
protection.
Impact 3.3.5: Flooding — Other Hazards
The NBWRP Phase 2 would not cause or exacerbate any existing risk of inundation by seiche,
tsunami, or mudflow.
Mitigation Measure 3.3.1a: Stream and Drainage Crossings
Refer to Impact 3.3.1.
Mitigation Measure 3.5.1: NPDES Construction Activity Stormwater
Permit
Refer to Impact 3.5.1 in Section 3.5, Water Quality.
Groundwater Resources
Impact 3.4.3: Hydrostatic Pressure
Proposed facilities may be affected by shallow groundwater levels and natural groundwater
fluctuations.
North Bay Water Reuse Program Phase 2 A-5 ESA / 206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.4.3
The Member Agencies will implement the following measures:
All proposed improvements will be designed and constructed in accordance with current
geotechnical industry standard criteria as overseen and approved by a state licensed
geotechnical engineer.
Implement industry standard geotechnical measures to address high groundwater conditions as
appropriate to reduce the potential for impacts related to groundwater fluctuation, in
accordance with accepted geotechnical practices and current building code requirements.
Possible design features include drainage blankets, perimeter pumps to temporarily decrease
hydrostatic pressure, perimeter drainage trenches, and specific groundwater monitoring
scenarios
implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Design improvements
1. Incorporate design
1. Member Agency
1. Prior to
Member Agency
with current r
requirements into
2. Member Agency
construction
geotechnical industry
construction
2. Prior to
standard criteria.
specifications.
construction
2. Design improvements
2. Incorporate design
to address high
requirements into
groundwater
construction
conditions in
specifications.
accordance with
accepted geotechnical
practices. Possible
design features
include but are not
limited to: drainage
blankets, perimeter
pumps to temporarily
decrease hydrostatic
pressure, perimeter
drainage trenches,
and specific
groundwater
monitoring scenarios.
Water Quality
Impact 3.5.1: Short Term Construction -Related Effects
Disturbance of soils during construction of new project -related infrastructure could generate short
term erosion -related water quality impacts. Construction activities could result in the accidental
release of fuels or hazardous materials. Project construction activities could require dewatering
that could result in the discharge of turbid waters into the local storm drain systems or nearby
creeks.
North Bay Water Reuse Program Phase 2 A-6 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.5.1: NPDES Construction Activity Stormwater
Permit
Member Agencies or their contractor shall comply with the provisions of the NPDES
Construction Activity Stormwater permit, including preparation of Notice of Intent to comply
with the provisions of this General Permit and preparation of a SWPPP. The SWPPP will identify
implementation measures necessary to mitigate potential water quality degradation as a result of
construction -related runoff. These measures will include BMPs and other standard pollution
prevention actions, such as erosion and sediment control measures, proper control of non-
stormwater discharges, and hazardous spill prevention and response. The SWPPP will also
include requirements for BMP inspections, monitoring, and maintenance.
The following items are examples of BMPs that would be implemented during construction to
avoid causing water quality degradation:
1. Erosion control BMPs, such as use of mulches or hydroseeding to prevent detachment of soil,
following guidance presented in the California BMP Handbooks — Construction (CASQA
2003). A detailed site map will be included in the SWPPP outlining specific areas where soil
disturbance may occur, and drainage patterns associated with excavation and grading
activities. In addition, the SWPPP will provide plans and details for the BMPs to be
implemented prior, during, and after construction to prevent erosion of exposed soils and to
treat sediments before they are transported offsite.
2. Sediment control BMPs such as silt fencing or detention basins that trap soil particles.
3. Construction staging areas designed so that stormwater runoff during construction will be
collected and treated in a detention basin or other appropriate structure.
4. Management of hazardous materials and wastes to prevent spills and provide the means to
contain any spills that might occur.
5. Groundwater treatment BMPs such that localized trench dewatering does not impact surface
water quality.
6. Vehicle and equipment fueling BMPs such that these activities occur only in designated
staging areas with appropriate spill controls.
7. Maintenance checks of equipment and vehicles to prevent spills or leaks of liquids of any kind.
A_7 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Monitoring and
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
Implementation
Procedure
Reporting Actions
1. Submit Notice of Intent
1. Comply with the
1. Contractor
1. Prior to
Member Agency
and SWPPP for the
SWPPP and
2. Contractor/
construction
NPDES General
NPDES permit
Member Agency
2. During and
Construction Permit
requirements
following
2. Incorporate BMPs in
2. Implement BMPs
construction
standard construction
A_7 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
procedures
Biological Resources
Impact 3.6.1: Impacts on Wetlands, Streams and Riparian
Habitats
Construction of the Proposed Project could result in impacts to jurisdictional wetlands and other
waters of the United States, as well as impacts to waters of the State and riparian habitat.
Mitigation Measure 3.6.1
Implement the following measures to avoid, minimize and compensate for impacts to
jurisdictional wetlands and other waters of the U.S. and State, and impacts to riparian habitat.
Construction activities resulting in the introduction of fill or other disturbance to jurisdictional
wetlands and other waters of the U.S. will require permit approval from the U.S. Army Corps of
Engineers and water quality certification from the Regional Water Quality Control Board,
pursuant to Section 401 of the Clean Water Act. Proposed facilities would most likely be
authorized under Nationwide Permit #12 (Utility Lines) pursuant to Section 404 of the Clean
Water Act. The CDFW has jurisdiction in the project area over riparian habitat, including stream
bed and banks, pursuant to Sections 1600-1616 of the Fish and Game Code. Pipeline construction
resulting in alteration to channel bed or banks, extending to the outer dripline of trees forming the
riparian corridor, is subject to CDFW jurisdiction. If work is proposed in these areas, project
proponent will be required to obtain a Streambed Alteration Agreement (SAA) from the
CDFW. Terms of these permits and SAA will likely include, but will not necessarily be limited
to, the mitigation measures listed below.
1. Specific locations of pipeline segments, storage reservoirs, and pump stations shall be
configured, wherever feasible, to avoid and minimize direct and indirect impacts to wetlands
and stream drainage channels. Consideration taken in finalizing configuration placement shall
include:
a) Reducing number and area of stream channel and wetland crossings where feasible.
Crossings shall be oriented as close to perpendicular (90 -degree angle) to the drainage or
wetland as feasible.
b) Placement of project components as distant as feasible from channels and wetlands.
c) For pipeline construction activities in the vicinity of wetland and stream drainage areas, the
construction work area boundaries shall have a minimum 20 -foot setback from
A-8 CJH / GVOVoo...
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
jurisdictional featured. Pipeline construction activities in proximity to jurisdictional
features include: 1) entrance and exit pits for directional drilling and bore and jack
operations; and 2) portions of pipeline segments.
2. Sites identified as potential staging areas will be examined by a qualified biologist prior to
construction. If potentially jurisdictional features are found that could be impacted by staging
activities, the site will not be used.
3. Construction methods for channel crossing shall be designed to avoid and minimize direct and
indirect impacts to channels to the greatest extent feasible. Use of trenchless methods
including suspension of pipeline from existing bridges, directional drilling, and bore and jack
tunneling will be used when feasible. Trenchless methods are required for all perennial
drainage crossings (i.e., Lynch Creek). Construction occurring in the vicinity of riparian areas
shall be delimited with a minimum 20 -foot setback to avoid intrusion of construction activities
into sensitive habitat.
The following additional measures shall apply to channel crossings in which the trenching
construction method is used:
a. Limiting of construction activities in drainage channel crossings to low -flow periods:
approximately April 15 to October 15.
b. At in -road drainage crossings where drainages pass beneath the road in existing culverts,
and where there is sufficient cover between the culvert and road surface, the new pipeline
will be installed above the existing culvert without removing or disturbing it. If the pipeline
must be installed below the existing culvert, then the culvert will be cut and temporarily
removed to allow pipeline installation.
c. At off-road drainage crossings, the construction corridor width will be minimized to the
greatest extent feasible at the crossing and at least 20 additional feet to either side of the
drainage at the crossing.
d. If disturbance of the existing culvert is required, sediment curtains upstream and
downstream of the construction zone shall be placed to prevent sediment disturbed during
trenching activities from being transported and deposited outside of the construction zone.
4. Construction BMPs shall be implemented as discussed in Mitigation Measure 3.5.1 in
Section 3.5, Water Quality, to reduce risk of erosion and sediment transport into all
construction areas in proximity of drainages.
5. For channels or wetlands for which soil removal is necessary (off-road crossings or wetlands
to be trenched or otherwise directly disturbed), the top layer of the drainage or wetland bottom
shall be stockpiled and preserved during construction. After the pipeline has been installed, the
stockpiled material shall be placed back into the drainage or wetland feature to return the beds
to approximately their original composition.
6. Project sites will be revegetated with an appropriate assemblage of native upland vegetation
and, if necessary, riparian and wetland vegetation suitable for the area. A plan describing pre -
Setbacks of channels with associated riparian vegetation will be from the outer dripline edge of the riparian corridor
canopies and/or the upper bank edge, or per City or County code, whichever is greater.
North Bay Water Reuse Program Phase 2 A-9 ESA 1206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
project conditions, restoration and monitoring success criteria will be prepared prior to
construction.
7. To offset temporary and permanent impacts to wetlands and other waters of the U.S. and State,
and impacts to riparian habitat, compensatory mitigation will be provided through on-site
restoration to emulate pre -project conditions, or as required by regulatory permits and SAAB.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Acquire permits from
1. Comply with
1. Member Agency
1. Prior to
Construction
Novato Sanitary
District, Petaluma,
USACE, CDFW, and
regulatory permit.
2. Contractor
Sonoma Valley
RWQCB.
2. Sign -off on
2. During
County Sanitation
2. Implement Best
inspection report
3. Contractor
Construction
District, American
Management
and/ or MMRP.
4. Member Agency
3. During
Canyon, Napa
Practices (BMPs).
3. Sign -off on
Construction
Sanitation District
3. Stockpile excavated
inspection report
4. Prior to and
soil.
and/ or MMRP.
During
4. Implement
4. Comply with
Construction
compensatory
regulatory permits
mitigation.
and SAAs.
Impact 3.6.2: Impacts to Special -status Fish and California
Freshwater Shrimp
Construction of NBW" Phase 2 facilities could affect special -status aquatic species including
central California coast steelhead, Chinook salmon, and California freshwater shrimp, or
designated critical habitat for steelhead.
Mitigation Measure 3.6.2
Specific measures shall be implemented to protect aquatic habitats potentially inhabited by
special -status fish and California freshwater shrimp.
Sensitive fisheries and other aquatic resources shall be protected by minimizing in -stream and
near -stream habitat impacts during project design, informally consulting with resource agencies
(NMFS, USFWS, CDFW, and USACOE), and implementing protective measures. For Lynch
Creek, North Slough, and Arroyo Seco, special -status fish are presumed present. California
freshwater shrimp are presumed present in Lynch Creek.
Because of the sensitivity of seasonal and ephemeral drainages, the following measures will be
required to avoid and minimize impacts to aquatic habitat:
Project designs shall be configured, whenever feasible, to avoid direct impacts to sensitive
wetland areas and minimize disturbances to wetland and riparian corridors. Ground
disturbance and construction footprints in these areas shall be minimized to the greatest degree
feasible. Trenchless constructions methods will be employed wherever possible. In the event
trenchless methods cannot be employed, the project proponent would obtain appropriate
North Bay Water Reuse Program Phase 2 A-1 0 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
permit authorizations and implement construction methods per applicable Streambed
Alteration Agreements.
2. All activities across waterways will be restricted to low -flow periods of June 15 through
November 1. If the channel is dry, construction can occur as early as April 15 (in accordance
with CDFW and RWQCB permit requirements). Restricting construction activities to this
work window will minimize effects to California freshwater shrimp and steelhead;
3. Reclamation or appropriate agency shall ensure the appropriate permit authorizations are
secured for stream crossings, and a qualified biological resource monitor shall be present at all
times to alert construction crews to the possible presence of California freshwater shrimp
during construction operations;
4. At least 15 days prior to onset of activities, Reclamation or appropriate agency shall submit the
name(s) and credentials of biologists who would conduct activities authorized by the BO. No
project activities shall begin until Reclamation has received written approval from the USFWS
and CDFW that the biologist(s) is approved to conduct the work;
A Service -approved biologist shall conduct a training session for construction personnel all
working near appropriate habitat prior to the onset of construction activities. At a minimum,
the training shall describe the California red -legged frog and their habitat, their importance,
and the measures that are being implemented to conserve these species as they relate to the
proposed action;
6. If trenchless methods cannot be implemented due to geotechnical conditions, and the channel
is not dry, water from around the section of trench that is within the actively flowing channels
will be diverted. This will reduce the potential for sediment or other pollutants to enter the
waterways and to affect downstream resources. Sediment curtains will be placed downstream
of the construction zone to prevent disturbed sediment from being transported and deposited
outside of the construction zone;
7. If ground water is encountered, or if water remains in the channel after flows are diverted, it
will be pumped out of the construction area and into a retention basin constructed of hay bales
lined with filter fabric. The pump(s) will be screened according to NMFS fish screening
criteria for anadromous salmonids (NMFS, 1997);
8. Silt fencing will be installed in all areas where construction occurs within 100 feet of known or
potential California freshwater shrimp or steelhead habitat;
9. A qualified biological monitor will be on site during all activities crossing waterways. The
biological monitor will be authorized to halt construction if effects to California freshwater
shrimp or salmonids are evident.
Implementation
Monitoring and
Monitoring
Monitoring
Responsible
Procedure
Reporting Actions
Responsibility
Schedule
Agency
North Bay Water Reuse Program Phase 2 A-1 1 ESA 1206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Consult with resource
1. Design protective
1. Member Agency
1. Prior to
Construction
Novato Sanitary
District, Petaluma,
agencies. .
9
measures.
2. Contractor
Sonoma Valley
2. Implement
2. Comply with permit
2. During
County Sanitation
recommendations
conditions; sign -off
Construction
District, American
derived during
on inspection report
Canyon, Napa
consultation.
and/or MMRP
Sanitation District
Impact 3.6.3: Impacts on Reptiles and Amphibians
Construction of the NBWRP Phase 2 has the potential to impact California red -legged frog and
western pond turtles in upland and aquatic habitat.
Mitigation Measure 3.6.3
Implement protection measures to avoid and minimize impacts to western pond turtles and
California red -legged frogs.
The implementation of measures identified for the protection of special -status fish and
California freshwater shrimp would also protect California red -legged frogs and western pond
turtles within aquatic habitat. When working within 200 feet of stream crossings, workers
shall receive specific training in the identification, life history, local project area occurrence,
and protection of western pond turtles and California red -legged frogs. Also, to minimize the
likelihood of encountering turtles or frogs in upland areas near stream crossings, construction
footprints shall be minimized to the greatest extent feasible. Based on reconnaissance -level
surveys, if staging and construction activities occur principally within or immediately
adjacent to project alignment roads, the project will be outside of frog and pond turtle habitat.
2. Trenchless methods will be employed at crossings presumed or known to support California
red -legged frog. In the event trenchless methods cannot be employed, the project proponent
would obtain appropriate permit authorizations and implement construction methods per
applicable Streambed Alteration Agreements;
3. To the extent practicable, work activities within or adjacent to aquatic habitat that is
potentially occupied by red -legged frogs will be completed between April I and October 31,
which avoids the time period when California red -legged frogs are most likely to move
through upland areas.
4. Prior to construction activities at stream crossings where aquatic impacts are expected, a
qualified biologist shall perform California red -legged frog and western pond turtle surveys
within suitable habitat within projected work areas. If California red -legged frogs or western
pond turtles are encountered during construction activities, work in the immediate area shall
cease until the area is determined to be free of sensitive species. If a pond turtle nest is
located within a wort-, area, a biologist with the appropriate permits may move the eggs to a
A-12 ESA 1206088-08
North Bay water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
suitable facility for incubation, and release hatchlings into the creek system in late fall. If
California red -legged frog tadpoles or eggs are found, the biologist shall contact the USFWS
to determine if moving any of these life -stages is appropriate.
At least 15 days prior to onset of activities, Reclamation or appropriate agency shall submit
the name(s) and credentials of biologists who would conduct activities authorized by the BO.
No project activities shall begin until Reclamation has received written approval from the
USFWS that the biologist(s) is approved to conduct the work;
6. Reclamation or appropriate agency shall ensure the appropriate permit authorizations are
secured for stream crossings, and a qualified biological resource monitor shall be present at
all times to alert construction crews to the possible presence of California red -legged frog or
western pond turtle during construction operations;
7. All trash that could attract predators will be regularly contained and removed from the work
site.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Conduct awareness
1. Comply with SAA
1. Contractor/
1. Prior to and
Novato Sanitary
training for
permit; sign -off on
Qualified Biologist
During
District, Petaluma,
construction personnel
inspection report
Construction
Sonoma Valley
working within
and/ or MMRP.
Conracor
2. t t
County Sanitation
200 feet of stream
2. Incorporate
3. Contractor
2. During
Construction
District, American
crossings.
construction
4. Contractor/
3. During
Canyon, Napa
Sanitation District
2. Employ trenchless
methods/
Qualified Biologist
Construction
methods at crossings
requirements into
presumed or known to
construction
5. Reclamation or
4. During
support California red-
specifications.
appropriate
Construction
legged frogs.
3. Incorporate into
agency.
5. Prior to
3. Complete all work
contract
6. Reclamation or
Construction
within or adjacent to
specifications.
appropriate
aquatic habitat that is
agency/Qualified
6. Prior to and
inhabited by red-
4. Comply with permit
Biologist.
During
legged frogs between
conditions; sign -off
Construction
April 1 and October 31
on inspection report
7. Contractor
and/or MMRP.
7. During
4. Perform California red-
Construction
legged frog and
5. Incorporate into
western pond turtle
contract .
surveys within suitable
specifications
habitat within project
6. Incorporate into
work area. Cease
construction
work until the area is
specifications
determined to be free
of sensitive species if
7. Comply with SAA
they are encountered.
permit conditions;
If a pond turtle nest is
sign -off on
located within a work
inspection report
area, a biologist with
and/or MMRP.
the appropriate
permits may move the
eggs to a suitable
facility for incubation,
and release hatchlings
into the creek system
in late fall. If California
North Bay Water Reuse Program Phase 2 A-13 ESA / 206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
red -legged frog
tadpoles or eggs are
found, the biologist
shall contact the
USFWS to determine
if moving any of these
life -stages is
appropriate.
5. Submit the name(s)
and credentials of
biologists who would
conduct activities
authorized by the BO.
6. Ensure the
appropriate permit
authorizations are
secured for stream
crossings, and a
qualified biological
resource monitor shall
be present at all times
to alert construction
crews to the possible
presence of California
red -legged frog or
western pond turtle
during construction
operations.
7. Implement trash
removal and
trenchless
construction methods
where necessary.
Impact 3.6.4: Impacts on Birds
Construction of the NBWRP Phase 2 has the potential to affect special -status marsh birds,
burrowing owl, and other nesting birds in and near the project sites.
Mitigation Measure 3.6.4: Impacts to Nesting Birds
The appropriate Member Agency shall implement the following protection elements to avoid
disturbing common and special -status nesting birds:
1. Whenever feasible, vegetation shall be removed during the non -breeding season (generally
defined as September 1 to January 31).
2. For ground -disturbing activities occurring during the breeding season (generally defined as
February 1 to August 31), a qualified wildlife biologist will conduct preconstruction surveys
of all potential nesting habitat for birds within 500 feet of earthmoving activities.
Construction activities will be constrained to the smallest area possible to minimize
disturbance to potential nesting habitat.
A-14 ESA 1206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
3. For work in Ridgway's rail, California black rail, western snowy plover or western burrowing
owl habitat, a Service -approved biologist shall conduct a training session for construction
personnel all working near appropriate habitat prior to the onset of construction activities. At
a minimum, the training shall describe the bird species and their habitat, their importance, and
the measures that are being implemented to conserve these species as they relate to the
proposed action.
4. All work areas, including staging areas will be surveyed prior to construction for bird nests
during nesting season. If active bird nests are found during preconstruction surveys, a 500 -
foot no -disturbance buffer will be created around active raptor nests during the breeding
season or until it is determined that all young have fledged. A 250 -foot buffer zone will be
created around the nests of other special -status birds. For non -special status migratory birds,
buffer size will be determined in consultation with CDFW. Buffer zones may be modified in
coordination with CDFW based on existing conditions at work locations.
If preconstruction surveys indicate that nests are inactive or potential habitat is unoccupied
during the construction period, no further mitigation is required. Trees and shrubs that have
been determined to be unoccupied by special -status birds or that are located at least 500 feet
from active nests may be removed.
5. For work in locations that provide habitat for listed marsh birds including Ridgway's rail, and
special -status birds such as burrowing owl and black rail, protocol -level surveys will be
conducted to determine species presence or absence.
If occupied burrowing owl burrows are discovered, construction exclusion areas would be
established around the occupied burrows in which no disturbance would be allowed to occur.
During the non -breeding season (September 1 through January 31), the exclusion zone would
extend 160 feet around occupied burrows. During the breeding season (February 1 through
August 31), exclusion areas would extend 250 feet around occupied burrows. Passive
relocation of owls is not proposed. A qualified biologist will monitor owl activity on the site
to ensure the species is not adversely affected by the project.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Limit vegetation
1. Incorporate into
1. Contractor
1. During
Member Agency
removal to non-
contract specifications.
Construction
breeding season
2. Qualified Biologist
(September 1 to
2• Incorporate survey
results and
3. Qualified Biolo ist!
g
2. Prior to
Construction
January
ry 31)
recommendations into
Construction
2. In the event that
contract specifications.
Personnel
3. Prior to
construction occursConstruction
t
3. Incorporate into
4. Contractor
during the breeding
seasonFebrua
season(February 1
contract specifications;
5. Qualified Biologist
4. During
Construction
to August 31),
sign -off on inspection
conduct surveys of
report and/or MMRP.
6. Qualified Biologist
5. Prior to
all potential nesting
4. Comply with CDFW
Construction
habitat within 500
guidelines. Sign -off on
6. During
feet of earthmoving
inspection report and/
Construction
activities.
or MMRP.
North Bay Water Reuse Program Phase 2 A-15 ESA 1206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
5. Incorporate survey
3. Conduct training
sessions for
results and
construction
recommendations into
personnel specific to
contract specifications
identification of
6. Summarize results and
sensitive bird habitat.
recommendations in
4. In the event that
daily log; sign -off on
active bird nests are
inspection report
found during
and/or MMRP.
preconstruction
surveys, establish a
5oo-foot buffer
around active nest
sites. Establish a
250 -foot buffer
around other active
special -status bird
nests. Remove trees,
if necessary, that are
not occupied by
special -status birds.
5. Conduct protocol -
level surveys in
areas that contain
suitable habitat for
listed marsh birds.
6. Monitor owl activity
on construction sites.
Impact 3.6.5: Impacts to Mammals
Construction of the NBWRP Phase 2 has the potential to affect special -status mammals, including
salt marsh harvest mouse, and roosting or breeding bats in and near the project alignments.
Mitigation Measure 3.6.5: Impacts to Mammals
1. The appropriate Member Agency shall implement protection measures to avoid and minimize
impacts on salt marsh harvest mouse during construction. Where avoidance of sensitive
habitat (i.e., areas in or near pickleweed) is not feasible (e.g., by bridging or bore and jack),
consultation with the USFWS would be initiated. If salt marsh harvest mouse is present or
presumed to be present in the project area following informal coordination with USFWS,
then formal consultation and a Biological Assessment in support of a Biological Opinion may
be needed. Such a consultation would proceed as part of the Corps 404 permitting process.
Similar coordination and permitting shall be performed with CDFW to address potential
impacts to salt marsh harvest mouse. Staging areas shall be located outside potential salt
marsh harvest mouse habitat.
2. To avoid potential impacts on salt marsh harvest mouse and Suisun ornate shrew, a qualified
biologist shall conduct specific preconstruction surveys to delineate potential habitat in the
project area. For areas within 100 feet of potential habitat, the project proponent shall install
A-16 ESA / 206088.08
North Bay Water Reuse Program Phase 2 Augusl2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
exclusionary fences to prevent species movement into the project area, and to prevent spoils
from entering the salt marsh. Fencing will consist of a material that does not allow small
mammals to pass through or over, and the bottom will be buried to a depth of at least six
inches.
3. A qualified biologist shall conduct a training session for construction personnel all working
near appropriate habitat prior to the onset of construction activities. At a minimum, the
training shall describe the species and their habitat, their importance, and the measures that
are being implemented to conserve these species as they relate to the proposed action.
4. Once a Biological Opinion is issued for the work, a qualified biologist will direct crews in the
hand removal of pickleweed and remain on-site to provide biological monitoring during
construction. The biological monitor shall inspect the exclusion fence to ensure their
integrity, and shall conduct an education workshop for contractors outlining species' biology,
legislative protection, and construction restrictions to reduce potential impacts. Protective
measures for the salt marsh harvest mouse will equally protect the Suisun ornate shrew.
At the close of each workday, escape ramps/boards will be provided in all open trenches.
Every morning prior to the start of construction, a qualified biologist will inspect all open
trenches within 250 feet of emergent pickleweed (Salicornia pacifica) habitat for trapped
mice. In the event a salt marsh harvest mouse or Suisun ornate shrew is found on-site, with
approval from the Service, the biologist will remove animals from trenches before the start of
construction.
6. A Service -approved biologist will be onsite during all ground -disturbing activities, including
vegetation removal and during morning trench inspections, and otherwise available during
the course of the construction work. The biologist will be responsible for informing the crews
of the need to halt work if sensitive species are observed, and documenting compliance with
the conservation measures and contacting the USFWS if any sensitive species are observed.
7. The appropriate Member Agency shall implement protection measures to avoid and minimize
impacts on special -status bats in and near project facilities during construction.
8. In conjunction with breeding bird surveys (Mitigation Measure 3.6.4), a qualified biologist
will conduct preconstruction surveys for special -status bats at each bridge crossing location
and in rural (i.e., non -road) areas where any large trees (e.g., > 24 inches in diameter at breast
height) will be removed. If an active roost is observed, a suitably -sized buffer (e.g., 100 to
150 feet) will be placed around the roost if it appears that trenching or other project activities
may cause abandonment. Demolition activities must cease until juvenile bats are self-
sufficient and will not be directly or indirectly impacted by activities.
implementationI Monitoring and Reporting I Monitoring I Monitoring Responsible
Procedure Actions Responsibility Schedule Agency
1. Consult with CDFW 1. Compliance with t7I.Member Agency/ 1. Prior toNovato Sanitaryand/ or USFWS when recommendations and/ ntractor Construction District,
avoidance of sensitive or Biological Assessment Petaluma,
A-17 roA I
North Bay Water Reuse Program Phase 2 August 2018
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and Reporting
Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
habitat is not feasible.
in support of a Biological
2. Qualified
2. Prior to
Sonoma Valley
2. Conduct surveys for
Opinion.
Biologist
Construction
County
Sanitation
salt harvest mouse
2. Comply with USFWS
3. Contractor/
3. During,
District, Sonoma
and Suisun ornate
guidelines; incorporate
Qualified
Construction
County Water
shrew.
survey results and
Biologist
Agency,
recommendations into
4. Prior to
American
3. Install exclusion
contract specifications.
4. Qualified
Construction
Canyon, Napa
fencing; conduct fence
inspections.
3. Comply with regulatory
Biologist!
Construction
5. Prior to and
Sanitation
District
permit conditions; sign-
Personnel
During
4. Conduct training
off on inspection report
Construction
sessions for
and/ or MMRP.
5. Qualified
6. During
construction personnel.
4. Incorporate into contract
Biologist/
Construction
Construction
5. Direct crews in the
specifications; sign -off on
Personnel
7. During
hand removal of
inspection report and/or
Construction
pickleweed and
MMRP.
6. Qualified Biologist
remain on-site to
provide biological
5. Incorporate into contract
7. Qualified
8. Prior to and
During
monitoring during
specifications; sign -off on
Biologist.
Construction
construction. Inspect
inspection report and/or
8 Appropriate
the exclusion fence to
MMRP.
Member Agency
9. Prior to and
ensure their integrity,During
and conduct an
6. Incorporate into contract
9 Qualified
Construction
education workshop
specifications; sign -off on
inspection report and/or
Biologist/
10Prior to
.
for contractors
MMRP.
Contractor
construction
outlining species'
biology, legislative
7. Comply with regulatory
10. Qualified Biologist
g
11. During
protection, and
permit conditions; sign-
Construction
construction
off on inspection report
11. Contractor
restrictions to reduce
and/ or MMRP.
potential impacts.
8. Incorporate into contract
6. Provide escape
specifications.
ramps/boards in all
trenches. Inspect all
9. Summarize results and
trenches for trapped
recommendations in
mice or shrews.
daily log; sign -off on
inspection report and/or
7. Biologist will remain
MMRP.
onsite during all
ground -disturbing
10. Incorporate results and
activities.
recommendations into
contract specifications;
8. Implement protection
sign -off on inspection
measures to avoid and
report and/ MMRP.
minimize impacts on
special -status bats in
11. Incorporate into contract
and near project
specifications; sign -off on
facilities during
inspection report.
construction
9. Implement Mitigation
Measure 3.5.8.
10. Conduct species
surveys at specified
locations.
11. Establish 100 -150 -
foot buffers around
active roosts; cease
demolition activities
until juvenile bats are
self-sufficient.
North Bay Water Reuse Program Phase 2 A-18 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Impact 3.6.6: Impacts to Rare Plants
Project construction could result in impacts to listed and other special -status plants.
Mitigation Measure 3.6.6: Impacts to Rare Plants
Before the initiation of any vegetation removal or ground -disturbing activities in areas that
provide suitable habitat for special -status plants, the following measures shall be implemented:
1. A qualified botanist will conduct appropriately -timed surveys for special -status plant species,
including those identified in Appendix 3.6C, in all suitable habitat that would be potentially
disturbed by the project, including staging areas.
2. Surveys shall be conducted following the most recent CDFW- or other approved protocol.
3. If no special -status plants are found during focused surveys, the botanist shall document the
findings in a letter to the appropriate agencies and no further mitigation will be required.
4. If special -status plants are found during focused surveys, the following measures shall be
implemented:
a. Information regarding the special -status plant population shall be reported to the
CNDDB.
b. If the populations can be avoided during project implementation, they shall be clearly
marked in the field by a qualified botanist and avoided during construction activities.
Before ground clearing or ground disturbance, all on-site construction personnel shall be
instructed as to the species' presence and the importance of avoiding impacts to this
species and its habitat.
c. If special -status plant populations cannot be avoided, consultations with CDFW and/or
USFWS would be required. A plan to compensate for the loss of special -status plant
species could be required, detailing appropriate replacement ratios, methods for
implementation, success criteria, monitoring and reporting protocols, and contingency
measures that would be implemented if the initial mitigation fails; the plan would be
developed in consultation with the appropriate agencies prior to the start of local
construction activities.
d. If mitigation is required, the project proponent shall maintain and monitor the mitigation
area for 5 years following the completion of construction and restoration activities.
Monitoring reports shall be submitted to the resource agencies at the completion of
restoration and for 5 years following restoration implementation. Monitoring reports shall
include photo -documentation, planting specifications, a site layout map, descriptions of
materials used, and justification for any deviations from the mitigation plan.
North Bay Water Reuse Program Phase 2 A-19 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Conduct plant
1. Comply with CDFW
1. Qualified Botanist
1. Prior to
Construction
Novato Sanitary
District, Petaluma,
surveys.
protocol.
2, Qualified Botanist
Sonoma Valley
2. Implement measures if
Incorporate results and
3. Qualified Botanist
2During
. g
Construction
County Sanitation
special -status plants
recommendations into
4. Member Agency
District, Sonoma
are present.
contract specifications.
3. Prior to
County Water
3. Mark special status
In the event that no
5. Member Agency
Construction
Agency, American
plants and inform
special -status plants
4. Prior to
Canyon, Napa
Sanitation District
construction personnel
are present, document
Construction
of their presence.
findings in a letter to
5. 5 Years
4. Consult with CDFW
the appropriate
Following
and/or USFWS if
resources agency.
Construction
special -status plants
2. Report information
cannot be avoided.
regarding present
special -status plants to
5. If compensatory
CNDDB.
mitigation is required,
monitor mitigation
3. Sign -off on inspection
area.
report and/or MMRP.
4. Coordination with
CDFW and or USFWS;
compliance with
recommendations;
development of a
compensation plan.
5. Submit annual
monitoring reports to
resource agencies that
include photo
documentation,
planting specifications,
site layout map.
Impact 3.6.7: Impacts on Heritage and Other Significant
Trees
The proposed project could affect heritage and other significant trees.
Mitigation Measure 3.6.7
The following measures will be implemented to avoid or reduce impacts to heritage or other
significant trees:
If trees are identified for removal or trimming, a certified arborist will inventory these trees,
with the results of the inventory providing species, size (diameter at breast height), and
number of protected trees. Also, in consultation with the appropriate jurisdiction, the arborist
will determine if any are heritage or landmark trees.
2. If any protected trees are identified that will be potentially removed or damaged by
construction of the proposed project, design changes will be implemented where feasible to
avoid the impact.
North Bay Water Reuse Program Phase 2 A-20 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Any protected trees that are removed will be replaced per applicable City and County tree
protection ordinances (see Appendix 3.6A). Foliage protectors (cages and tree shelters) will
be installed to protect the planted trees from wildlife browse. The planted trees will be
monitored as required by the ordinance, or regularly during a minimum two-year
establishment period and maintenance during the plant establishment period will include
irrigation. After the establishment period, the native tree plantings are typically capable of
survival and growth without supplemental irrigation.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Inventory trees.
1. Record results in
1. Certified Arborist
1. Prior to
Member Agency
inspection report.
Construction
2. Consult with counties
2. Member Agency
to determine if any
2. Record results in
2. Prior to
identified trees are
inspection report.
3. Member Agency
Construction
landmark trees.
3. Comply with City
. 4Member Agency!
3. After
3. Replace removed
and County Tree
Certified Arborist
Construction is
trees.
ordinances.
Completed
4. Monitor replacement
4. Comply with City
4. Minimum of two
trees.
and County Tree
years following
ordinances; sign -off
completion of
on inspection
construction
report/ and or
MMRP.
Transportation and Traffic
Impact 3.8.1: Temporary Congestion and Delays
Construction of NBWRP Phase 2 would have temporary and intermittent effects on traffic and
transportation conditions in the project area.
Mitigation Measure 3.8.1a
The appropriate Member Agency for each N AW Phase 2 element shall obtain and comply with
local and Caltrans road encroachment permits for roads that are affected by construction
activities.
The Work Area Protection and Traffic Control Manual includes requirements to ensure safe
maintenance of traffic flow through or around the construction work zone, and safe access of
police, fire, and other rescue vehicles (CJUTCC, 2014). In addition, the Traffic Management Plan
(subject to local jurisdiction review and approval, or Caltrans for State roadways) required by
Mitigation Measure 3.8.1b, below, would direct how traffic flow is safely maintained during
project construction.
North Bay Water Reuse Program Phase 2 A-21 ESA 1206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.8.1b
The construction contractor for each N AW Phase 2 element shall prepare and implement a
Traffic Control/Traffic Management Plan subject to approval by the appropriate local jurisdiction
prior to construction. The plan — prepared in accordance with the California Manual on Uniform
Traffic Control Devices — shall be subject to approval by Caltrans for work occulting in Caltrans
facilities. The plan shall:
Identify hours of construction (between 7:00 AM and 7:00 PM; no construction shall be
permitted between 10:00 PM and 7:00 AM unless stipulated in coordination with responsible
jurisdiction on a case-by-case basis);
2. Identify hours for deliveries;
3. Include a discussion of haul routes, limits on the length of open trench, work area delineation,
traffic control and flagging;
4. Identify all access and parking restriction, pavement markings and signage requirements (e.g.,
speed limit, temporary loading zones);
Layout a plan for notifications and a process for communication with affected residents and
businesses prior to the start of construction. Advance public notification shall include posting
of notices and appropriate signage of construction activities. The written notification shall
include the construction schedule, the exact location and duration of activities within each
street (i.e., which lanes and access point/driveways would be blocked on which days and for
how long), and a toll-free telephone number for receiving questions or complaints;
6. Include a plan to coordinate all construction activities with emergency service providers in
the area at least one month in advance. Emergency service providers shall be notified of the
timing, location, and duration of construction activities. All roads shall remain passable to
emergency service vehicles at all times;
Include a plan to coordinate all construction activities with the appropriate local school
district at least two months in advance. The school district shall be notified of the timing,
location, and duration of construction activities. Coordinate with the appropriate local school
district to identify peak circulation periods at schools along the alignment(s) (i.e., the arrival
and departure of students), and require their contractor to avoid construction and lane
closures during those periods. The construction contractor for each project component shall
be required to maintain vehicle, pedestrian, and school bus service during construction
through inclusion of such provisions in the construction contract. The assignment of
temporary crossing guards at designated intersections may be needed to enhance pedestrian
safety during project construction;
3. Include the requirement that all open trenches be covered with metal plates at the end of each
workday to accommodate traffic and access; and
ii -22 ESA / 206088.08
North Bay Water Reuse Program Phase 2 Augusl2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
9. Specify the street restoration requirements pursuant to agreements with the local jurisdictions.
Mitigation Measure 3.8.1c
The appropriate Member Agency for each NBWRA Phase 2 element shall identify all roadway
locations where special construction techniques (e.g., horizontal boring, directional drilling or
night construction) will be used to minimize impacts to traffic flow.
Mitigation Measure 3.8.1d
The appropriate Member Agency for each NBWRA Phase 2 element shall develop circulation
and detour plans to minimize impact to local street circulation. This may include the use of
signing and flagging to guide vehicles through and/or around the construction zone.
Mitigation Measure 3.8.1e
The appropriate Member Agency for each NBWRA Phase 2 element shall encourage construction
crews to park at staging areas to limit lane closures in the public right-of-way.
Mitigation Measure 3.8.1f
The appropriate Member Agency for each NBWRA Phase 2 element shall consult with the
appropriate public transit service providers at least one month prior to construction to coordinate
bus stop relocations (as necessary) and to reduce potential interruption of transit service.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Obtain local road
1. Incorporate permit
1. Member Agency
1. Prior to
Member Agency
encroachment permits
regulations into
Construction
for roads that are
contract
2. Member Agency
affected by
specifications.
3. Member Agency
2. Prior During and
construction activities.
2. Incorporate traffic
p
4. Contractor!
Construction
2. Implement a traffic
control plan
Member Agency
3. Prior to and
control plan which
measures into
includes the following
contract
5. Member Agency
During
measures such as
specifications.
Construction
hours
identifyingof
6. Contractor
4. Prior to and
construction and
3. Incorporate
During
deliveries; identifying
Y 9
techniques into
Construction
access and parking
contract
restriction, pavement
specifications.
5. During
markings and signage
4. Incorporate plans
Construction
requirements; and
into contract
6. Prior to
planning for
specifications.
Construction
notifications;
coordinating all
5. Incorporate parking
construction activities
restrictions into
with emergency
contract
service providers;
specifications.
3. Identify all roadway
6. Incorporate transit
locations where
service notification
special construction
into contract
techniques (e.g.,
specifications.
horizontal boring,
North Bay Water Reuse Program Phase 2 A-23 ESA 1206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule ]Agency
Responsible
directional drilling or
night construction) will
be used to minimize
impacts to traffic flow.
4. Develop circulation
and detour plans to
minimize impact to
local street circulation.
This may include the
use of signing and
flagging to guide
vehicles through
and/or around the
construction zone.
5. Encourage
construction crews to
park at staging areas
to limit lane closures in
the public right-of-way.
6. Consult with the
appropriate public
transit service
providers at least one
month prior to
construction to
coordinate bus stop
relocations (as
necessary) and to
reduce potential
interruption of transit
service.
Impact 3.8.2: Temporary Disruption to Access
Construction of NBWRP Phase 2 would temporarily disrupt circulation patterns near sensitive
land uses (schools, hospitals, fire stations, police stations, and other emergency providers).
Mitigation Measure 3.8.2a
Pipeline construction near schools shall occur when school is not in session (i.e., summer or
holiday breaks). If this is not feasible, a minimum of two months prior to project construction, the
appropriate Member Agency for each NBWRA Phase 2 element shall coordinate with the
appropriate local school district to identify peals circulation periods at schools along the
alignment(s) (i.e., the arrival and departure of students), and require their contractor to avoid
construction and lane closures during those periods.
Mitigation Measure 3.8.2b
A minimum of two months prior to project construction, the appropriate Member Agency for
each NBWRP Phase 2 element shall coordinate with the appropriate local school district to
identify alternatives to their Safe Routes to School program, alternatives for the school busing
A-24 UOA / GVOV Vu.v�
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
routes and stop locations, and other circulation provisions, as part of the Traffic Control/Traffic
Management Plan (see Mitigation Measure 3.8.1a).
Mitigation Measure 3.8.2c
Implement Mitigation Measure 3.8.1b.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Restrict pipeline
1. Incorporate
1. Member Agency
1. Prior to and
Member Agency
construction near
restrictions for
1. Member Agency
During
Member Agency
schools to times when
schools into
Construction
school is not in
construction
session (i.e., summer
schedule and
or holiday breaks). If
construction
this is not feasible,
specifications.
coordinate with the
appropriate local
school district a
minimum of two
months prior to project
construction to identify
peak circulation
periods at schools
along the alignment(s)
(i.e., the arrival and
departure of students),
and require the
contractor to avoid
construction and lane
closures during those
periods.
Impact 3.8.3: Temporary Disruption to Access
Construction of NB VW Phase 2 would have temporary effects on alternative transportation or
alternative transportation facilities.
Mitigation Measure 3.8.3
Implement Mitigation Measure 3.8.1f.
Implementation
Monitoring and
Monitoring
Monitoring
Responsible
Procedure
Reporting Actions
Responsibility
Schedule
Agency
1. Implement Mitigation
1. Incorporate transit
1. Member Agency
1. Prior to
Member Agency
Measure 3.8.1f.
service notification
Construction
into contract
specifications.
Impact 3.8.4: Temporary Potential Traffic Hazards
Construction ofNBWRP Phase 2 would temporarily increase the potential for accidents on
project roadways.
North Bay Water Reuse Program Phase 2 A-25 ESA / 206088.08
August2018
Cvhihik 4
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.8.4
Implement Mitigation Measure 3.8.1b through 3.8.1f.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement Mitigation
1. Incorporate traffic
1. Member Agency
1. Prior to and
Member Agency
Measure 3.8.1b.
control plan
measures into
2• Contractor/
During
Construction
Member Agency
2. Implement Mitigation
contract
Member Agency
Construction
Measure 3.8.1c.
s ecifications.
p
3. Member Agency
2. Prior to and
During
3. Implement Mitigation
2. Incorporate
4. Contractor
Construction
Measure 3.8.1d.
techniques into
3. Prior and
4. Implement Mitigation
contract
5Member Agency
.
During
Measure 3.8.1e.
specifications
Construction
5. Implement Mitigation
3. Incorporate plans
4. During
Measure 3.8.1f.
into contract
Construction
specifications.
4. Incorporate parking
5. Prior to
Construction
restrictions into
contract
specifications.
5. Incorporate transit
service notification
into contract
specifications.
Impact 3.8.5: Road Wear
Construction of the NBWRP Phase 2 would increase wear and tear on the designated haul routes
used by construction vehicles to access the project work sites.
Mitigation Measure 3.8.5
Roads damaged by construction shall be repaired to a structural condition equal to that which
existed prior to construction activity as per conditions of the encroachment permit (see
Mitigation Measure 3.8.1a).
Implementation
Monitoring and
Monitoring
Monitoring
Responsible
Procedure
Reporting Actions
Responsibility
Schedule
Agency
1. Obtain local road
1. Incorporate permit
1. Member Agency
1. Prior to
Member Agency
encroachment permits
regulations into
Construction
for roads that are
contract
affected by
specifications.
construction activities.
North Bay Water Reuse Program Phase 2 A-26 ESA/206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Air Quality
Impact 3.9.1: Construction Emissions of Criteria Pollutants
Construction of the NBWRP Phase 2 projects would result in criteria pollutant emissions that
could exceed air quality standards or contribute substantially to an existing or projected air
quality violation.
Mitigation Measure 3.9.1-1a: BAAQMD Basic Construction Measures
To limit dust, criteria pollutants, and precursor emissions associated with construction, the
following BAAQMD-recommended Basic Construction Measures shall be implemented and
included in all contract specifications for projects constructed under the Phase 2 Program:
1. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved
access roads) shall be watered two times per day.
2. All haul trucks transporting soil, sand, or other loose material off-site shall be covered.
3. All visible mud or dirt track -out onto adjacent public roads shall be removed using wet power
vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited.
4. All vehicle speeds on unpaved roads shall be limited to 15 miles per hour (mph).
5. All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible.
Building pads shall be laid as soon as possible after grading unless seeding or soil binders are
used.
6. Idling times shall be minimized either by shutting equipment off when not in use or reducing
the maximum idling time to 5 minutes (as required by the California airborne toxics control
measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage
shall be provided for construction workers at all access points.
7. All construction equipment shall be maintained and properly tuned in accordance with
manufacturer's specifications. All equipment shall be checked by a certified mechanic and
determined to be running in proper condition prior to operation.
Post a publicly visible sign with the telephone number and persons to contact at the North
Bay Water Reuse Authority and/or the applicable member agency regarding dust complaints.
These persons shall respond and take corrective action within 48 hours. The BAAQMD's
phone number shall also be visible to ensure compliance with applicable regulations.
North Bay Water Reuse Program Phase 2 A-27 ESA / 206088.08
August2018
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.9.1-1 b: Additional Construction
The North Bay Water Reuse Authority and/or applicable member agency shall implement all
feasible measures from the BAAQMD's Additional Construction Mitigation Measures listed
below:
1. All exposed surfaces shall be watered at a frequency adequate to maintain minimum soil
moisture of 12 percent. Moisture content can be verified by lab samples or moisture probe.
2. All excavation, grading, and/or demolition activities shall be suspended when average wind
speeds exceed 20 mph.
3. Wind breaks (e.g., trees, fences) shall be installed on the windward side(s) of actively
disturbed areas of construction. Wind breaks should have at maximum 50 percent air
porosity.
4. Vegetative ground cover (e.g., fast -germinating native grass seed) shall be planted in
disturbed areas as soon as possible and watered appropriately until vegetation is established.
The simultaneous occurrence of excavation, grading, and ground -disturbing construction
activities on the same area at anyone time shall be limited. Activities shall be phased to
reduce the amount of disturbed surfaces at any one time.
6. All trucks and equipment, including their tires, shall be washed off prior to leaving the site.
Site accesses to a distance of 100 feet from the paved road shall be treated with a 6 to 12 -inch
compacted layer of wood chips, mulch, or gravel.
Sandbags or other erosion control measures shall be installed to prevent silt runoff to public
roadways from sites with a slope greater than one percent.
9. Minimize the idling time of diesel powered construction equipment to 2 minutes.
10. The off-road diesel -powered equipment (more than 50 horsepower) to be used in the
construction of any project (i.e., owned, leased, and subcontractor vehicles) under the Phase 2
Program shall be equipped with engines that achieve USEPA Tier 4 emissions standards.
11. Use low volatile organic compound (i.e., ROG) coatings beyond the local requirements (i.e.,
Regulation 8, Rule 3: Architectural Coatings).
12. Require that all construction equipment, diesel trucks, and generators be equipped with Best
Available Control Technology for emission reductions of NOx and PMI O.
Implementation Monitoring and Monitoring Monitoring Responsible
Procedure Reporting Actions Responsibility Schedule Agency
1. implement BAAQMD 1. Incorporate in 1. Contractor 1. During Member Agency
Basic Dust Control contract Construction
A-28 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Respohedule
MonitoL4D
nitoring
Responsible
Agency
Measures.
specifications and
2. Contractoruring
1. Implement Mitigation
Sign -off on
1. Contractor
Construction
Member Agency
2. Implement BAAQMD's
inspection report
During
Construction
Additional
and/ or MMRP that
Construction
measures are being
Mitigation Measures
implemented.
2. Incorporate in
contract
specifications and
Sign -off on
inspection report
and/ or MMRP that
measures are being
implemented
Impact 3.9.3: Conflict with Clean Air Plan
Construction of the NBWRP Phase 2 projects would result in emissions that could conflict with
the 2017 Clean Air Plan.
Mitigation Measure 3.9.3
Implement Mitigation Measures 3.9.1-1a and 3.9.1-1b.
Implementation
Monitoring and
Monitoring
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
Responsibility
1. Implement Mitigation
1. Review contract
1. Contractor
1. Design and
Member Agency
Measure 3.9.1-1 a.
specifications.
During
Construction
2. Implement Mitigation
Measure 3.9.1-1b.
Impact 3.9.4: Exposure of Sensitive Receptors
Construction of the NBWRP Phase 2 could expose sensitive receptors to toxic air contaminants,
including diesel particulate matter emissions.
Mitigation Measure 3.9.4
Implement Mitigation Measure 3.9.1-1b.
Implementation
Monitoring and
Monitoring
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
Responsibility
1. Implement Mitigation
1. Review contract
1. Contractor
1. Design and
Member Agency
Measure 3.9.1-1 b.
specifications.
During
Construction
A-29 ESA 1206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Noise
Impact 3.11.1: Temporary Construction Noise
Construction activity would result in a substantial temporary increase in ambient noise levels in
the vicinity of Program projects during construction.
Mitigation Measure 3.11.1: Construction Noise Reduction Measures
(applies to Marin County Lower Novato Creek Project 1- Distribution
Project)
The applicable Member Agency shall develop and implement a Construction Noise Reduction
Plan. The Construction Noise Reduction Plan shall be submitted to the County of Marin for
review and approval prior to construction. A disturbance coordinator shall be designated for the
project to implement the provisions of the plan. At a minimum, the Construction Noise Reduction
Plan shall implement the following measures:
Distribute to the potentially affected residences and other sensitive receptors within 100 feet
of project construction boundary a "hotline" telephone number, which shall be attended
during active construction working hours, for use by the public to register complaints. The
distribution shall identify a noise disturbance coordinator who would be responsible for
responding to any local complaints about construction noise. The disturbance coordinator
would determine the cause of the noise complaints and institute feasible actions warranted to
correct the problem. All complaints shall be logged noting date, time, complainant's narne,
nature of complaint, and any corrective action taken. The distribution shall also notify
residents adjacent to the project site of the construction schedule.
2. All construction equipment shall have intake and exhaust mufflers recommended by the
manufacturers thereof, to meet relevant noise limitations.
3. Maintain maximum physical separation, as far as practicable, between noise sources
(construction equipment) and sensitive noise receptors. Separation may be achieved by
locating stationary equipment to minimize noise impacts on the community.
4. Impact tools (e.g., jackhammers, pavement breakers) used during construction activities will
be hydraulically or electrically powered where feasible to avoid noise associated with
compressed air exhaust from pneumatically powered tools. Where use of pneumatic tools is
unavoidable, an exhaust muffler on the compressed air exhaust shall be used.
5. Use construction noise barriers such as paneled noise shields, blankets, or enclosures adjacent
to noisy stationary equipment. Noise control shields, blankets or enclosures shall be made
featuring a solid panel and a weather -protected, sound -absorptive material on the
construction -activity side of the noise shield.
North Bay Water Reuse Program Phase 2 A-30 ESA / 206088.08
August 2018
Exhibit A
6. Truck hauling access routes to project sites along local roadways shall use roadways with the
fewest residences feasible to minimize vehicle noise exposure to nearby residences.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Incorporate into
1. Contractor
1. Prior to and
Novato Sanitary .
District
1. Develop and
Implement
Construction Noise
contract
specifications; sign-
2. Contractor
During
Construction
Reduction Plan.
off on inspection
3. Contractor
2. At least two
report and/or MMRP.
weeks Prior to
2. Distribute "hotline"
4. Contractor-
Construction
telephone numbers to
2. Sign -off on inspection
sensitive receptors.
report and/or MMRP.
5. Contractor
3. Prior to
3. Designate a noise
3. Incorporate into
6. Contractor
Construction
disturbance
coordinator.
contract
specifications; sign-
7. Contractor
4. During
Construction
off on inspection
4. Use appropriate
report and/or MMRP.
5. During
equipment.
Construction
4. Incorporate into
5. Appropriately locate
contract
6. During
all stationary noise-
specifications; sign-
Construction
generating equipment,
off on inspection
6. Designate roadways
report and/or MMRP.
with fewest residences
5. Incorporate into
feasible.
contract
specifications; sign -off
on inspection report
and/or MMRP.
6. Incorporate into
contract
specifications; sign -off
on inspection report
and/or MMRP.
Impact 3.11.2: Violation of Established Standards during
Construction
Construction activity would violate standards established in the local general plans or noise
ordinances, and/or would adversely affect nearby sensitive receptors.
Mitigation Measure 3.11-2a: Construction Time -of -Day Restriction
All NBWRP Phase 2 project construction activities shall be limited to the acceptable hours
identified within the applicable jurisdiction policies and/or municipal codes unless granted a
special exemption by the applicable jurisdiction.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Incorporate into
construction
specifications; Sign-
1. Contractor
1. Prior to and
During
Construction
Member Agency
1. Implement acceptable
construction hours.
off inspection report
and/or MMRP-
A-31 ESA / 208088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Impact 3.11.3: Temporary Vibration Impacts
Construction activity could expose sensitive receptors to excessive ground -borne vibration levels.
Mitigation Measure 3.11-3: Vibration Control
The construction contractor shall use a trenchless technology (e.g., horizontal directional drill,
lateral drilling, etc.) other than jack -and -bore when there are historical building structures within
100 feet of the proposed activities and/or any building structure within 50 feet of the proposed
activities. If the contractor provides the applicable Member Agency with acceptable
documentation indicating that alternative trenchless technology is not feasible for the given
crossing, the contractor shall develop and implement a Construction Vibration Mitigation Plan to
minimize construction vibration damage using all reasonable and feasible means available,
including siting the jack -and -bore as far as possible from all nearby structures. The plan shall
provide a procedure for establishing thresholds and limiting vibration values for potentially
affected structures based on an assessment of each structure's ability to withstand the loads and
displacements due to construction vibrations. The plan shall also include the development of a
vibration monitoring plan to be implemented during construction of a particular crossing.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement trenchless
1. Incorporate into
1. Contractor
1. During
Sonoma County
technology, when
contract
Construction
Water Agency
appropriate.
specifications.
2• Contractor
2. Prior to and
2. Develop a Construction
2. Incorporate into
During
Vibration Mitigation
contract
Construction
Plan in the event that
specifications.
trenchless technology is
not feasible.
Impact 3.11.5: Violation of Established Standards during
Operations
Expose people to or generate noise levels in excess of standards established in the local general
plan, noise ordinance, or applicable standards of other agencies during operations.
Mitigation Measure 3.11-5: Stationary — Source Noise Controls
The applicant applicable Member Agency shall retain an acoustical engineer to design stationary
-source noise controls and ensure the applicable noise standards are met. Prior to operations of the
stationary noise source, the applicable Member Agency shall conduct a single 24-hour noise
monitoring survey to ensure compliance with local noise standards.
North Bay Water Reuse Program Phase 2 A-32 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Design stationary—
1. Incorporate into
1. Contractor/
1. Prior to
Sonoma County
source noise controls
construction
Acoustical
Construction
Water Agency
and ensure applicable
specifications; Sign-
Engineer
2. After
noise standards are
off inspection report
2 Contractor/
Construction
met.
and/or MMRP.
Acoustical
2. Conduct noise
2. Incorporate survey
Engineer
monitoring survey.
results and
access and parking
recommendations
restriction, pavement
into project contract
markings and signage
specifications.
Hazards and Hazardous Materials
Impact 3.12.2: Emit Hazardous Materials near a School
Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or
waste within one-quarter mile of an existing or proposed school.
Mitigation Measure 3.8.1b
Implement Mitigation Measure 3.8.1b as described in Section 3.8, Transportation and Traffic.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement a traffic
1. Incorporate traffic
1. Member Agency
1. Prior to
Petaluma,
control plan which
control plan
Construction
American Canyon
includes the following
measures into
measures such as
contract
identifying hours of
specifications.
construction and
deliveries; identifying
access and parking
restriction, pavement
markings and signage
requirements; and
planning for
notifications;
coordinating all
construction activities
with emergency
service providers.
Impact 3.12.3: Create Significant Hazards to the Public
Be located on a site that is included on a list of hazardous materials sites compiled pursuant to
Government Code Section 65962.5 and, as a result, would create a significant hazard to the public
or the environment.
North Bay Water Reuse Program Phase 2 A-33 ESA / 206088.08
August 2018
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.12-3a: Health and Safety Plan
The construction contractor(s) shall prepare and implement a site-specific Health and Safety Plan
as required by and in accordance with 29 CFR 1910.120 to protect construction workers and the
public during all excavation and grading activities. The Health and Safety Plan shall include, but
is not limited to, the following elements:
1. Designation of a trained, experienced site safety and health supervisor who has the
responsibility and authority to develop and implement the site health and safety plan;
2. A summary of all potential risks to construction workers and maximum exposure limits for
all known and reasonably foreseeable site chemicals;
3. Specified personal protective equipment and decontamination procedures, if needed;
4. Emergency procedures, including route to the nearest hospital; and
Procedures to be followed in the event that evidence of potential soil contamination (such as
soil staining, noxious odors, debris or buried containers) is encountered. These procedures
shall be in accordance with hazardous waste operations regulations and specifically include,
but are not limited to, the following: immediately stopping work in the vicinity of the
unknown hazardous materials release, notifying the appropriate regulatory agency, and
retaining a qualified environmental firm to perform sampling and remediation, as needed.
Mitigation Measure 3.12-3b: Soil and Groundwater Management Plan
In support of the Health and Safety Plan described above, the construction contractor(s) shall
develop and implement a Soil Management Plan that includes materials testing and disposal
procedures specifying how the construction contractor will remove, handle, transport, and dispose
of all excavated material in a safe, appropriate, and lawful manner. The plan shall identify
protocols for soil testing, list action levels to determine whether the soil may be reused or must
be disposed of at an offsite facility permitted to accept the materials, identify the approved disposal
site, and include written documentation that the disposal site will accept the waste. Contract
specifications shall mandate full compliance with all applicable local, state, and federal regulations
related to the identification, transportation, and disposal of hazardous materials, including those
encountered in excavated soil.
Implementation
Monitoring and
Monitoring
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
Responsibility
1. Prepare and implement a
1. Incorporate plan
1. Contractor
1. Prior to and
During
Petaluma,
American Canyon
site-specific Health and
requirements into
2• Contractor
Construction
Safety Plan in
construction
accordance with 29 CFR
specifications.
2. Prior to and
1910.120.
2, Incorporate plan
Durin
2 Action levels would include San Francisco Bay Regional Water Quality Control Board Environmental Screening Levels to identify soil
requiring cleanup, and landfill hazardous and designated waste acceptance criteria.
A-34 — ,
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Monitoring and Monitoring Monitoring Responsible
Procedure Reporting Actions Responsibility Schedule Agency
2. Develop and implement a
requirements into Construction
construction
Soil Management Plan. specifications.
------------
Impact 3.12.5: Interfere with Emergency Response Plan
Impair implementation of or physically interfere with an adopted emergency response plan or
emergency evacuation plan during construction.
Mitigation Measure 3.8.1b through 3.8.1f
Refer to Impact 3.8.1 in Section 3.8, Transportation and Traffic.
Impact 3.12.6: Wildland Fire Hazard
Expose people or structures to a significant risk of loss, injury, or death involving wildland fires,
including where wildlands are adjacent to urbanized areas or where residences are intermixed
with wildlands.
Mitigation Measure 3.12.6: Fire Safety Plan
Prior to construction, the construction contractor for each project component that would be within
or adjacent to an area designated as susceptible to wildland fires shall prepare and implement a
fire safety plan to reduce the potential for starting wildland fires during construction activities.
The fire safety plan shall provide, but not be limited to, the following elements:
In consultation with local fire agencies, a Fire Safety Plan will be developed for each of the
service areas designated as susceptible to wildland fires. The Fire Safety Plans will describe
various potential scenarios and action plans in the event of a fire. During project
construction, all staging areas, welding areas, or areas slated for development using spark -
producing equipment will be cleared of dried vegetation or other material that could ignite.
Any construction equipment that includes a spark arrestor shall be equipped with a spark
arrestor in good working order. All vehicles and crews working at the project sites shall
have access to functional fire extinguishers at all times. In addition, construction crews
will be required to have a spotter during welding activities to look out for potentially
dangerous situations, including accidental sparks.
Implementation Monitoring and Monitoring
Monitoring Responsible
Procedure Reporting Actions Responsibility Schedule Agency
1. Prepare and 1. Incorporate Fire 1. Contractor
implement a Fire Safety Plan into
Safety Plan. construction
specifications.
1. Prior to Marin Municipal
Construction Water District,
Petaluma
A-35 - ESA 1206088.06
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Public Services and Utilities
Impact 3.13.1: Temporary Effect on Response Times for
Emergency Service Providers
Project construction activities could temporarily affect response times for emergency service
providers.
Mitigation Measure 3.13.1
The Member Agencies or Participating Municipalities will coordinate with local emergency
service providers in its service area to inform them of the proposed construction activities and
schedule, and provide temporary alternate access routes around construction areas as necessary.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
esponsible
[gency
1. Coordinate with local
1. incorporate into
1. Member Agency/
1. Prior to
Marin Municipal
Water District,
emergency providers
contract
Contractor
construction
Sonoma
to inform them of the
specificationsPetaluma,
2. Contractor
2. During
Valley County
proposed construction
2. Sign -off on
Member Agency/
Construction
Sanitation District,
activities and
inspection report
Contractor
2. Prior to
American Canyon
schedule.
and/or MMRP
2. Provide alternate
routes for emergency
service providers
around construction
areas as necessary.
Impact 3.13.2: Short-term Police and Fire Assistance
Project construction activities could require short-term police and fire protection services to assist
in traffic management or in the event of an accident.
Mitigation Measure 3.13.2
The Member Agency (i.e., project owner) or it construction contractor shall provide 72 -hour
notice to the local emergency service providers prior to construction of individual pipeline
segments. The Member Agency or its construction contractor shall provide, upon request, a copy
of the Traffic Control/Traffic Management Plan to the emergency service agencies for review
prior to construction. Discussion on the Traffic Control/Traffic Management Plan is provided in
Section 3.8, Transportation and Traffic.
Implementation
Monitoring and
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
1. Provide notice to local
1. Sign -off on
1. Member Agency/
1. 72 hours Prior to
Con traction at
Marin Municipal
ater DSan
fire and police
inspection report
Contractor
eac2.
Sanitary
agencies to notify
and/or MMRP.
Member Agency/
District, Petaluma,
them of construction of
2 Sign -off on
g
Contractor
2. Prior to
Sonoma Valle
individual segments of
A-36 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
--i 3
Implementation
Monitoring and .
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
Procedure
Reporting Actions
inspection report
Construction.
County Sanitation
District, Sonoma
pipeline.
2. Provide Traffic Control
and/or MMRP.
County Water
Plan to local
Agency, American
emergency service
Canyon
providers for review.
Impact 3.13.3: Temporary Disruption to Utility Services
Project construction could result in temporary, planned, or accidental disruption to utility
services.
Mitigation Measure 3.13.3
The Member Agencies (i.e., project owner) or its construction contractor shall identify utilities
along the proposed pipeline routes and project sites prior to construction and implement the
following measures:
a. Utility excavation or encroachment permits shall be obtained as required from the appropriate
agencies. These permits include measures to minimize utility disruption. The service provider
and its contractors shall comply with permit conditions regarding utility disruption.
Utility locations shall be verified through the use of the Underground Service Alert services
and/or field survey.
c. As necessary, detailed specifications shall be prepared as part of the design plans to include
procedures for the excavation, support, and fill of areas around utility cables and pipes. All
affected utility services shall be notified of construction plans and schedule. Arrangements
shall be made with these entities regarding protection, relocation, or temporary disconnection
of services.
d. In areas where the pipeline would traverse parallel to underground utility lines within five
feet, the project applicant shall employ special construction techniques, such as trench wall -
support measures to guard against trench wall failure and possible resulting loss of structural
support for the excavated areas.
e. Residents and businesses in the project corridor shall be notified of any planned utility
service disruption two to four days in advance, in conformance with county and state
standards.
Implementation
Procedure
uire
Monitoring and
Reporting Actions
with
Monitoring Monitoring Responsible
Responsibility Schedule Agency
d (1—franfnr/ 1. Prior to Marin Municii
A-37 ESA / 208088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
excavation or
regulatory permit,
Member Agency
Construction
Water
DNovato istrict,
ary
encroachment
Copies of approved
2 Contactor
2. Prior to
District, Petaluma,
permits.
permits will be
Construction
Sonoma Valley
available onsite.
3. Contractor
County Sanitation
2. Verify utility locations
using Underground
2. Incorporate into
4. Contractor/
3. Prior to
Construction
District, Sonoma
Service Alert services
contract
Member Agency
County Water
and/or field survey.
specifications.
4. Prior to
Agency, American
5. Contractor
Construction
Canyon
3. Include procedures for
excavation, support,
3. Incorporate in
design and contract
6. Contractor/
5. During
and fill of areas
specifications
Member Agency
Construction
around utility cables
4. Incorporate into
6. Prior to
and pipes.
contract
Construction
4. Coordinate with
specifications; sign -
affected local utility
off on inspection
services to notify them
report and/or
of the proposed
MMRP
construction activities
5. Sign -off on
and schedule.
inspection report
5. Implement special
and/or MMRP
construction
6. Sign -off on
techniques, as
inspection report
needed.
and/or MMRP
6. Notify residents and
businesses in advance
to inform them of
proposed construction
activities and
schedule.
Cultural Resources
Impact 3.14.1: Impacts or Adverse Effects to Archaeological
Resources, Human Remains, and Tribal
Cultural Resources
This impact discussion focuses on archaeological resources, human remains, and tribal cultural
resources that are considered historical resources or unique archaeological resources (for the
purposes of CEQA), or historic properties (for the purposes of the NHPA).
Mitigation Measure 3.14.1 a: Inadvertent Discoveries
If prehistoric or historic -era archaeological resources are encountered, the contractor shall
immediately cease all work within 100 feet of the discovery. Prehistoric archaeological materials
might include obsidian and chert flaked -stone tools (e.g., projectile points, knives, scrapers) or
toolmaking debris; culturally darkened soil ("midden") containing heat -affected rocks, artifacts,
or shellfish remains; and stone milling equipment (e.g., mortars, pestles, handstones, or milling
slabs); and battered stone tools, such as hammerstones and pitted stones. Historic -era materials
might include stone, concrete, or adobe footings and walls; filled wells or privies; and deposits of
metal, glass, and/or ceramic refuse. After cessation of excavation, the contractor shall
A-38 -11 ....�.
North Bay Water Reuse Program Phase 2 August 201 B
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
immediately contact the NBWRA and the appropriate Member Agency. The contractor shall not
resume work until authorization is received from the appropriate Member Agency.
In the event of unanticipated discovery of archaeological resources during construction, the
Member Agency shall retain the services of a qualified professional archaeologist (defined as
an archaeologist that meets the Secretary of the Interior's Standards) to evaluate the
significance of the find prior to resuming any activities.
2. If it is determined that the Project could damage a historical resource or a unique
archaeological resource (pursuant to CEQA) or a historic property (pursuant to NHPA),
mitigation shall be implemented with a preference for preservation in place. This may be
accomplished through planning construction to avoid the resource; incorporating the resource
within open space; capping and covering the resource; or deeding the site into a permanent
conservation easement. If the site cannot be avoided, a qualified professional archaeologist
shall prepare and implement a detailed research design and treatment plan in consultation
with the Member Agency and the affiliated Native American tribe(s), as appropriate.
Treatment for most resources would consist of (but would not be not limited to) sample
excavation, artifact collection, site documentation, and historical research, with the aim to
target the recovery of important scientific data contained in the portion(s) of the significant
resource to be impacted by the Project. The treatment plan shall include provisions for
analysis of data in a regional context, reporting of results within a timely manner, curation of
artifacts and data at an approved facility, and dissemination of reports to local and state
repositories, libraries, and interested professionals.
Mitigation Measure 3.14.1b: Discovery of Human Remains
If potential human remains are encountered, the appropriate Member Agency shall halt work in
the vicinity of the find and contact the county coroner in accordance with PRC Section 5097.98
and Health and Safety Code Section 7050,5. If the coroner determines the remains are Native
American, the coroner shall contact the Native American Heritage Commission. As provided in
PRC Section 5097.98, the Commission shall identify the person or persons believed to be most
likely descended from the deceased Native American. The most likely descendent makes
recommendations for means of treating or disposing of, with appropriate dignity, the human
remains and any associated grave goods as provided in PRC Section 5097.98.
Mitigation Measure 3.14.1 c: Cultural Resources Assessment for
Staging Areas
When locations for staging are defined, the staging areas should be subject to a cultural resources
investigation completed by a qualified professional archaeologist that includes, at a minimum:
1. An updated records search at the NWIC;
2. An intensive survey of the staging areas;
3. A report disseminating the results of this research;
A-39 LOA I No ---
North Bay Water Reuse Program Phase 2 August 2018
ExhibitA
Mitigation Monitoring and Reporting Plan/Program
4. Recommendations to avoid impacts to identified resources that qualify as historical resources,
unique archaeological resources, tribal cultural resources, or historic properties; and
5. If resources cannot be avoided, provide recommendations for additional cultural resources
work necessary to mitigate any adverse impacts to recorded and/or undiscovered cultural
resources.
Mitigation Measure 3.14.1d: Cultural Resources Monitoring
Prior to authorization to proceed, or issuance of permits, the appropriate Member Agency shall
prepare a cultural resources monitoring plan. Monitoring shall be required for all surface
alteration and subsurface excavation work including trenching, boring, grading, use of staging
areas and access roads, and driving vehicles and equipment within all areas delineated as
sensitive for cultural resources. A qualified professional archaeologist shall prepare the plan. The
plan shall address (but not be limited to) the following issues:
1. Training program for all construction and field workers involved in site disturbance;
2. Person(s) responsible for conducting monitoring activities, including Native American
monitors, if necessary;
3. Person(s) responsible for overseeing and directing the monitors;
4. Schedule for submittal of monitoring reports and person(s) responsible for review and
approval of monitoring reports;
5. Procedures and construction methods to avoid sensitive cultural resource areas (i.e. boring
conduit underneath recorded or discovered cultural resource site);
6. Clear delineation and fencing of sensitive cultural resource areas requiring monitoring;
7. Physical monitoring boundaries;
8. Protocol for notifications in case of encountering of cultural resources, as well as methods of
dealing with the encountered resources (e.g., collection, identification, curation);
9. Methods to ensure security of cultural resources sites;
10. Protocol for notifying local authorities (i.e. Sheriff, Police) should site looting and other
illegal activities occur during construction.
If an intact archaeological deposit is encountered, all soil -disturbing activities within 100 feet of
the find shall cease until the deposit is evaluated. The archaeological monitor shall immediately
notify the appropriate Member Agency of the encountered archaeological resource. The protocol
outlined in Mitigation Measure 3.14.1a and Mitigation Measure 3.14.1b would be
implemented.
A-40 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.14.1f: Program Elements and Storage
Alternative: Cultural Resources Assessment
If this alternative is selected, the appropriate Member Agency will conduct a cultural resources
investigation prepared by a qualified professional archaeologist that includes, at a minimum:
1. An updated records search at the NWIC;
2. An intensive cultural resources survey of the Project area;
3. A report disseminating the results of this research;
4. Recommendations to avoid impacts to identified resources that qualify as historical resources,
unique archaeological resources, tribal cultural resources, or historic properties; and
5. Recommendations for additional cultural resources work necessary to mitigate any adverse
impacts to recorded and/or undiscovered cultural resources.
implementation
Monitoring and
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Res p
Agency
Procedure
Reporting Actions
1. Cease work within
1. Copies of DPR 422
1. Contractor/
1. During
Construction
Member Agency
100 feet of a find and
or 523 shall be
Member Agency
inform the appropriate
retained in Member
2 Contractor/
2. During
Member Agency in the
Agency files;
Member Agency
Construction
event of an
inadvertent discovery
incorporate
recommendations
3_ Qualified
3. Prior to
of cultural resources.
for design
Archaeologist
Construction
2. In the event of
modification if
necessary.
4. Qualified
4. Prior to
Construction
discovery of human
Archaeologist
remains, cease work
2. Sign -off on
inspection report
5. Qualified
5. Following Project
g
and contact county
coroner and NAHC if
and/ or MMRP;
Archaeologist
Design; Prior to
Construction
necessary.
coordinate with
NAHC.
3. Conduct cultural
resources
3. Incorporate into
investigation for
contract
staging areas.
specifications.
4. Prepare Cultural
4. Incorporate into
Resources Monitoring
contract
Plan.
specifications.
5. Conduct a project-
5. Incorporate into
level Cultural
contract
Resources
specifications, and
Assessment for
make
program -level areas.
recommendations
for design
modification if
necessary.
A-41 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Recreation
Impact 3.15.1: Temporary Disturbance
Project construction could result in short-term disturbance adjacent to recreational facilities.
Mitigation Measure 3.15.1a
The appropriate Member Agency shall coordinate with the appropriate local and regional
agencies to identify detour routes for the bikeways and trails during construction where feasible,
as part of the Traffic Control/Traffic Management Plan (see Measure 3.8.1). In addition, the
Member Agency shall conduct outreach to notify the public of closures, detours, etc.
implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Coordination with
1. Contractor!
1. Prior to and During
Construction
Petaluma,
Sonoma Valley
1. Identify and establish
detours for disrupted
local and regional
Member Agency
County Sanitation
bikeways and trails.
agencies.
2. Contractor
2. Design and Prior
District, American
2. Implement Mitigation
2. Incorporate in
3. Contractor
to Construction
Canyon
Measure 3.8.1 a.
contract
3. Prior to
specifications and
Construction
3. Conduct outreach to
Sign -off on
notify the public of
inspection report
closures, detours, etc.
and/ or MMRP that
measures are being
implemented.
3. Incorporate into
contract
specifications; sign -
of on inspection
report and/or
MMRP.
Aesthetics
Impact 3.16.2: Impact to Views Along Scenic Roadways
Implementation of NBWRP could affect views along eligible or designated Caltrans Scenic
Highways or locally -defined scenic routes.
Mitigation Measure 3.16.2a
Following construction activities, disturbed areas shall be restored to baseline conditions, by
repaving roadways, replanting trees, and/or reseeding with a native seed mix typical of the
immediately surrounding area.
A-42 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.16.2b
Berms around constructed reservoirs shall be vegetated with native seed mixes to soften the
visual effect of the reservoirs from adjacent roadways.
Mitigation Measure 3.16.2c
Design elements shall be incorporated to enhance visual integration of the pump stations and
other above ground structures with their surroundings. Proposed facilities shall be painted low -
glare earth -tone colors that blend with the surrounding terrain. Highly reflective building
materials and/or finishes shall not be used in the designs for proposed facilities.
Implementation
Procedure
Monitoring and
p Actions
itori
MonitoringReporting
bility
Responsibility
ScheduleMonitorin
te o
Agency
1. Restore disturbed
1. Inspect final site
1. Contractor/
1. After Construction
Novato Sanitary
District,
areas to baseline
conditions after
Member Agency
2 Design and During
Petaluma,
conditions.
construction and
2 Contractor
Construction
Sonoma Valley
2. Vegetate berms with
verify its condition is
it equivalent to that
3. Contractor
3. Design and During
County Sanitation
District, American
native seed mixes.
prior to construction.
Construction
Canyon
3. Paint facilities low-
Incorporated into
glare earth -tone colors
construction
and refrain from using
specifications.
highly reflective
2. Review construction
building materials.
specifications and
landscape design.
3. Review construction
specifications.
Impact 3.16.3: Source of Light or Glare
NBWRP components could introduce new sources of light and glare on the project sites.
Mitigation Measure 3.16.3a
The exterior lighting installed around the operational and capacity storage reservoirs, distribution
pump station, storage tanks, and booster pump station shall be of a minimum standard required to
ensure safe visibility. Lighting also shall be shielded and directed downward to minimize impacts
of light and glare.
Mitigation Measure 3.16.3b
All exterior lighting is directed downward and oriented to ensure that limited light source is
directly visible from neighboring residential areas. If necessary, landscaping would be provided
around proposed facilities. The vegetation would be selected, placed, and maintained to minimize
off-site light and glare onto surrounding areas.
A-43 ESA 1206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Mitigation Measure 3.16.3c
Dark colored, non -reflective building materials should be used for project components that cause
potentially significant impact fi•om glare to visual resources.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Review construction
1. Member Agency
1. During Design
Napa an
District
1. Incorporate shielded,
downward oriented,
specifications.2.
Member Agency
2. During Design
low intensity light
2. Review construction
and After
sources in design.
specifications.
3. Member Agency
Construction
2. Plant vegetation to act
3. Review construction
3. During Design
as a natural buffer
specifications.
and During
around areas that
Construction
require lighting.
3. Incorporate dark
colored, non -reflective
building material in
design.
Impact 3.16A Long-term Impact to Aesthetic Character
Development of the proposed facilities, particularly pump stations and storage reservoirs, would
permanently alter the aesthetic character of the project area.
Mitigation Measure 3.16.4a
Following construction activities, disturbed areas shall be restored to baseline conditions, by
repaving roadways, replanting trees, and/or reseeding with a native seed mix typical of the
immediately surrounding area.
Mitigation Measure 3.16.4b
Design elements shall be incorporated to enhance visual integration of the pump stations or other
project -related above ground structures with their surroundings. Proposed facilities shall be
painted low -glare earth -tone colors that blend with the surrounding terrain. Highly reflective
building materials and/or finishes shall not be used in the designs for proposed facilities.
Mitigation Measure 3.16.4c
After construction of any facility that is above grade and visible to sensitive receptors, visual
screening and vegetation measures will be implemented to reduce impacts to scenic views. Trees
or other suitable vegetation along the fenceline of the facility should be incorporated to reduce the
industrial appearance of the structures. Similarly, berms for new storage ponds or pond
reconfiguration will be re -vegetated to reduce the barren appearance of the berms.
A-44 ESA / 208088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Inspect final site
1. Contractor/
1. After Construction
Marin Municipal
Water District,
1. Restore disturbed
areas to baseline
conditions after
Member Agency
2 Design and During
Petaluma,
conditions.
construction and
verify its condition is
2 Contractor
Construction
Sonoma Valley
2. Paint facilities low-
it equivalent to that
3. Contractor
3. Design and During
County Sanitation
District, American
glare earth -tone colors
prior to construction.
Construction
Canyon, Napa
and refrain from using
Incorporated into
Sanitation District
highly reflective
construction
building materials.
specifications.
3. Incorporate trees and
2. Review construction
other vegetation along
specifications.
fence line of facility.
Vegetate berms.
3. Review construction
specifications and
landscape design.
Energy Conservation
Impact 3.17.1 Wasteful Use of Fuel and Energy
Use large amounts of fuel and energy in an unnecessary, wasteful, or inefficient manner during
construction and decommissioning.
Mitigation Measures 3.9.1-1 a and 3.9.1-1 b
Refer to Impact 3.9.1 in Section 3.9, Air Quality
Environmental Justice
Impact 3.18.1 Disproportionate Impacts to Minority or Low -
Income Populations
Project construction could result in significant environmental impacts that could
disproportionately affect minority or low-income populations.
Mitigation Measures 3.9.1-1 a and 3.9.1-1 b
Refer to Impact 3.9.1 in Section 3.9, Air Quality
Cumulative Impacts
Impact 4.1. Construction -related Cumulative Impacts.
Concurrent construction of several projects within the Sonoma, Napa, and Marin County areas
could result in cumulative short-term impacts associated with construction activities. If
implemented at the same time as other construction projects, construction of facilities could
contribute to potential short-term cumulative effects associated with erosion, cultural resource
A-45 ESA 1206098.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
disturbance, disturbance of adjacent land uses, traffic disruption, dust generation, construction
noise, aesthetics, air quality, biological resources, hazardous materials, water quality, public
services and utilities. However, construction -related impacts would not result in long term
alteration of the environment, and could be mitigated to less than significant levels through the
use of mitigation measures identified throughout Chapter 3.
Mitigation Measure 4.1
The Member Agencies shall coordinate construction activities along selected alignments to
identify overlapping pipeline routes, project areas, and construction schedules. To the extent
feasible, construction activities shall be coordinated to consolidate the occurrence of short-term
construction -related impacts.
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Incorporate into
contract
specifications.
1. Member Agency
1. Prior to Construction
Member Agency
1. Coordinate
construction activities
to identify overlapping
routes and
construction
schedules.
Impact 4.5. Cumulative Long -Term Impacts on Biological
Resources
Concurrent construction ofNBWRP Phase 2 with other projects proposed in the Sonoma, Napa,
and Marin County area, and other water and wastewater infrastructure projects, could result in
cumulative long-term impacts to biological resources.
Mitigation Measures in Section 3.6, Biological Resources
Refer to Section 3.6, Biological Resources.
A-46 ESA / 206088.08
North Bay Water Reuse Program Phase 2 August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement Mitigation
1. Comply with
1. Member Agency/
1. Prior to and
Member Agency
Measure 3.6.1.
regulatory permit;
Contractor
During
2. Implement Mitigation
Sign -off on
inspection report
2. Member Agency/
Construction
Measure 3.6.2.and/
or MMRP.
Contractor
2. Prior to and
During
3. Implement Mitigation
2, Comply with
3. Member Agency/
Construction
Measure 3.6.3.
regulatory permit;
Contractor
3. Prior to and
4. Implement Mitigation
Sign -off on
g
4. Contractor/
During
Measure 3.6.4.
inspection report
Qualified Biologist
Construction
and/ or MMRP.
5. Implement Mitigation
5. Member Agency/
4. Prior to and
Measure 3.6.5.
3. Comply with
Contractor/
During
regulatory permit;
Qualified Biologist
Construction
6. Implement Mitigation
Sign -off on
Measure 3.6.6.
inspection report
6. Member Agency/
5. Prior to and
and/ or MMRP.
Qualified Biologist
During
7. Implement Mitigation
Measure 3.6.7.
4. Incorporate into
7. Member Agency/
Construction
contract
Certified Arborist
6. Prior to and
specifications;
During
Comply with CDFW
Construction
guidelines; Sign -off
on inspection report
7. Prior to and After
and/or MMRP.
Construction
5. Incorporate into
contract
specifications;
Comply with
regulatory permit;
Sign -off on
inspection report
and/ or MMRP.
6. Comply with CDFW
protocol; Sign -off on
inspection report
and/ or MMRP.
7. Comply with City
and County Tree
ordinances; Sign -off
on inspection report
and/ or MMRP.
Impact 4.7. Cumulative Impacts from Greenhouse Gas
Emissions
Concurrent operation ofNBWRP Phase 2 with other projects could result in a cumulatively
considerable net increase in GHG emissions or criteria pollutants for which the region is in non -
attainment under applicable standards.
Mitigation Measures in Section 3.9, Air Quality
Refer to Section 3.9, Air Quality.
North Bay Water Reuse Program Phase 2 A-47 ESA / 206088.08
August 2018
Exhibit A
Mitigation Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement Mitigation
1. Incorporate in
1. Contractor
1. During
Member Agency
Measure 3.9.1-1 a.
contract
2. Contractor
Construction
2. Implement Mitigation
specifications and
Sign -off on
3. Contractor
2. During
Measure 3.9.1-1 b.
inspection report
Construction
3. Implement Mitigation
and/ or MMRP that
4. Contractor
3. During
Measure 3.9.3.
measures are being
Construction
implemented
4. Implement Mitigation
4. During
Measure 3.9.4.
2. Incorporate in
Construction
contract
specifications and
Sign -off on
inspection report
and/ or MMRP that
measures are being
implemented
3. Incorporate in
contract
specifications and
Sign -off on
inspection report
and/ or MMRP that
measures are being
implemented
4. Incorporate in
contract
specifications and
Sign -off on
inspection report
and/ or MMRP that
measures are being
implemented
Impact 4.8. Cumulative Long -Term Impacts on Cultural and
Historic Resources
Concurrent operation ofNBWRP Phase 2 with other projects proposed in the Sonoma, Napa, and
Marin County area and other water.and wastewater infiastructure projects could result in
cumulative long-term impacts to cultural resources.
Mitigation Measures in Section 3.14, Cultural Resources and Tribal
Cultural Resources
Refer to Section 3.14, Cultural Resources and Tribal Cultural Resources.
North Bay Water Reuse Program Phase 2 A-48 ESA/206088.08
August 2018
Exhibit A
Monitoring and Reporting Plan/Program
Implementation
Procedure
Monitoring and
Reporting Actions
Monitoring
Responsibility
Monitoring
Schedule
Responsible
Agency
1. Implement Mitigation
1. Copies of DPR 422
1. Contractor/
1. During
Member Agency
Measure 3.14.1 a.
or 523 shall be
Member Agency
Construction
retained in MemberAgency
2. Implement Mitigation
files;
2• Contractor!
2. During
Measure 3.14.1 b.
incorporate
Member Agency
Construction
3. Implement Mitigation
recommendations
3. Qualified
3. Prior to
Measure 3.14.1 c.
for design
Archaeologist
Construction
modification if
4. Implement Mitigation
necessary.
4. Qualified
4. Prior to
Measure 3.14.1d.
Archaeologist
Construction
2. Sign -off on
5. Implement Mitigation
inspection report
5. Qualified
5. Following Project
Measure 3.14.1e.
and/ or MMRP;
Archaeologist
Design; Prior to
coordinate with
Construction
NAHC.
3. Incorporate into
contract
specifications.
4. Incorporate into
contract
specifications.
5. Incorporate into
contract
specifications, and
make
recommendations
for design
modification if
necessary.
Growth Inducement and Secondary Effects of Growth
Impact 5.1. Direct and Indirect Impacts on Growth
The NBWRP Phase 2 would provide recycled water for urban, agricultural, and environmental
uses, and as such, would contribute to the provision of adequate water supply to support a level of
growth that is consistent with the amount planned and approved within the General Plans of
Marin, Sonoma and Napa Counties. No appreciable growth in population or employment would
occur as a direct result of construction or operation of the proposed facilities. However,
development under the General Plans accommodated by the proposed project could result in
secondary environmental effects, which include effects that could be significant and unavoidable.
Mitigation Measure 5.1a
No additional mitigation measures required.
North Bay Water Reuse Program Phase 2 A-49 ESA / 206088.08
August 2018