HomeMy WebLinkAboutStaff Report 5.C 06/06/2016Agenda Item #5.0
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DATE: June 6, 2016
TO: Honorable Mayor and Members of the City Council through City Manager
FROM: Dan St. John, F.ASCE — Director, Public Works & Utilities
Larry Zimmer, P.E. — Deputy Director, Public Works & Utilities
SUBJECT: Resolution Certifying the Water Recycling Facility and River Access
Improvements Environmental Impact Report Bridge Relocation Addendum,
Approving the Project, and Adopting a Mitigation Monitoring Program
RECOMMENDATION
It is recommended that the City Council adopt the attached Resolution Certifying the Water
Recycling Facility and River Access Improvements Environmental hnpact Report Bridge
Relocation Addendum, Approving the Project, and Adopting a Mitigation Monitoring Program.
BACKGROUND
The City's Ellis Creek Water Recycling Facility ( ECWRF) has been in operation since early
2009 and currently processes an average dry weather daily flow of 4.8 MGD (million gallons per
day). Ellis Creek bisects the ECWRF site, with the main facility and administration offices on
the northwest side of the creels and the oxidation ponds and ancillary facilities including
disinfection, discharge monitoring, and pumping on the southeast side. The original EIR for the
facility included a bridge across Ellis Creek; however, it was not constructed due to budgetary
priorities. The need for ready and safe access between the two halves of the plant site has not
diminished, in fact has increased due to increasing traffic on Lakeville Road that led to a serious
rear -end collision involving the plant supervisor approximately one and one half years ago. The
purpose of the proposed action is to amend the existing EIR to accommodate the location of the
proposed access bridge.
The EIR for the ECWRF, referred to as the Water Recycling Facility and River Access
Improvements EIR (State Clearinghouse #2001052089), was certified by the City of Petaluma in
2002. The relocation of the bridge, a minor change to the original Project, is therefore evaluated
in an Addendum to the original EIR called the Bridge Relocation Addendum.
DISCUSSION
Multiple times a day, operations and maintenance staff leave the main facility and travel on
Lakeville Highway to access essential plant facilities southeast of Ellis Creek. hlstalling a bridge
will allow staff direct access to these facilities, including the storage ponds, aerated lagoon,
chemical storage and disinfection, plant monitoring and outfall, and various pumping stations
without leaving City property. This will increase efficiency and reduce risk of highway
accidents. The new bridge would be located outside of the public trail area.
The Bridge Relocation Addendum indicates that the revised location of the bridge would not
have new significant impacts or substantially more severe impacts than those already identified
in the 2002 Certified EIR. The proposed Mitigation Monitoring Progam was prepared
specifically for this project, and contains only the pertinent mitigations measures from the EIR.
It is proposed that the bridge be placed prior to the proposed Chemical System Upgrade project
to better facilitate access for construction and inspection. The City would contract directly for the
construction of a recycled railcar bridge and abutments for approximately $125,000, and use City
crews and equipment to grade a gravel access road to the bridge. While the proposed FY 16/17
CIP Budget contains a budget of $369,000, it is believed that by contracting directly with a
bridge provider and installer, and grading the road in- house, the costs will be much less.
The proposed action meets the following Council Goals: Plan for and implement priority capital
projects as funding permits.
FINANCIAL IMPACTS
The certification of the EIR addendum has no financial impacts. The City is not obligated to
construct the project with this action. Costs for preparation of the EIR amendment were part of
an agreement with GHD, the environmental consultant, to prepare more elaborate environmental
documentation associated with the Digester, High Strength Waste, and Tertiary Filtration
projects.
ATTACHMENTS
1. Resolution
2. Exhibit 1 A —Bridge Relocation Addendum
3. Exhibit 1B — Mitigation Monitoring Program
4. Location Map
5. Exhibit 1 C — Certified Water Recycling Facility and River Access Improvement
Environmental Impact Report
2
Attachinent 1
RESOLUTION CERTIFYING THE WATER RECYCLING FACILITY AND RIVER
ACCESS IMPROVEMENTS ENVIRONMENTAL IMPACT REPORT BRIDGE
RELOCATION ADDENDUM, APPROVING THE PROJECT, AND ADOPTING A
MITIGATION MONITORING PROGRAM
WHEREAS, the Ellis Creek Water Recycling Facility (ECWRF) site is bisected by Ellis
Creek, with the main facility and administration offices on the northwest side of the creek and
the oxidation ponds and ancillary facilities on the southeast side; and
WHEREAS, the 2002 Water Recycling Facility and River Access Improvements
Environmental Impact Report and Approved Project included a bridge over Ellis Creek; and
WHEREAS, the original bridge was not carried forward in subsequent design plans and
was never built; and
WHEREAS, operations and maintenance staff must leave the ECWRF and travel on
Lakeville Highway to access the part of the facility southeast of Ellis Creek multiple times a day;
and
WHEREAS, a bridge across Ellis Creek will increase efficiency of operations and
maintenance staff at the ECWRF and reduce the risk of highway accidents; and
WHEREAS, the new bridge location will connect both facilities directly; and
WHEREAS, construction of the bridge will reduce traffic on Lakeville Highway during
construction of new facilities as well as under normal operation; and
WHEREAS, on August 5, 2002, the City Council, by Resolution No. 2002 -135, certified
the Final Environmental Impact Report for the Water Recycling Facility and River Access
Improvements Project; and
WHEREAS, Resolution No. 2002 -136 made certain findings of fact and statement of
overriding considerations as required under the California Environmental Quality Act ( "CEQA ")
and adopted a Mitigation Monitoring Program for the Project; and
WHEREAS, under California Environmental Quality Act (CEQA) Guidelines section
15164, a lead agency may prepare an addendum to a previously certified EIR to analyze changes
in a project, or in circumstances surrounding a project, where the record indicates that a
supplemental or subsequent EIR or negative declaration is not required; and
WHEREAS, the Council has considered the Bridge Relocation Addendum, attached
hereto as Exhibit IA, together with the original Certified EIR, attached hereto as Exhibit 1 C,
both of which are hereby made a part of this resolution; and
WHEREAS, there is sufficient funding for the project in Wastewater Enterprise fiends.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Petaluma, that:
1. Findim4s: Based upon the substantial evidence set forth in the record, the City Council
makes the following findings:
a. The foregoing recitals are true and correct and incorporated by reference.
b. Pursuant to CEQA Guidelines 15164(b) and (e), no further envirommental review is
warranted because:
i. no new significant environmental impacts would occur due to the proposed
Project modifications; and
ii. No substantially more severe significant environmental impacts would occur
due to the proposed Project modifications.
c. Therefore, there are no conditions warranting further environmental review.
d. The Bridge Relocation Addendum represents the independent judgment and analysis
of the City Council.
2. The City Council determines that the Bridge Relocation Addendum is the appropriate CEQA
documentation for the Project as modified; and
3. The City Council hereby certifies the Bridge Relocation Addendum; and
4. The documents, which constitute the record of proceedings upon which this Resolution is
based, are available for review at the City Clerk's office during normal business hours; and
5. The City Council hereby approves the bridge as described in the Bridge Relocation
Addendum to the Water Recycling Facility and River Access Improvements EIR; and
6. The City Council hereby adopts the Mitigation Monitoring Program attached as Exhibit 1B
and hereby made a part of this resolution; and
7. The City Council directs staff to file a Notice of Determination with the County Cleric.
4
Notice of Determination
Exhibit l A' Print Form
Appendix D
To: From:
® Office of Planning and Research Public Agency: City of Petaluma
U.S. Mail: Street Address: Address: 3890 Cypress Drive
P.O. Box 3044 1400 Tenth St., Rm 113 Petaluma, CA 94954
Contact:Leah Walker
Sacramento, CA 95812 -3044 Sacramento, CA 95814 Contact:Leah 8 -4583
® County Clerk
County of: Sonoma Lead Agency (if different from above):
Address: 2300 County Center Drive, Suite 8177 Same
Santa Rosa, CA 95403 Address:
Phone:
SUBJECT: Filing of Notice of Determination in compliance with Section 21108 or 21152 of the Public
Resources Code.
State Clearinghouse Number (if submitted to State Clearinghouse): 2001052089
Project Title: Water Recycling Facility and River Access Improvement EIR Bridge Relocation Addendum
Project Applicant: City of Petaluma
Project Location (include county):4000 block of Lakeville Highway, Petaluma, Sonoma County
Project Description:
The approved Project included a bridge over Ellis Creek along the northeast border of the site adjacent to Lakeville
Highway. The bridge however, was not carried forward in subsequent plans for the site and was never built. The City
now proposes to build the bridge, but at a different location than that analyzed in the Water Recycling Facility EIR.
This minor change to the original Project is evaluated in this Bridge Relocation Addendum.
This is to advise that the City of Petaluma has approved the above
(X❑ Lead Agency or ❑ Responsible Agency)
described project on ,tune 6th , 2016 and has made the following determinations regarding the above
(date)
described project.
1. The project [❑ will X❑ will not] have a significant effect on the environment.
2. X❑ An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA.
❑ A Negative Declaration was prepared for this project pursuant to the provisions of CEQA.
3. Mitigation measures [X❑ were [:1 were not] made a condition of the approval of the project.
4. A mitigation reporting or monitoring plan [El was ❑ was not] adopted for this project.
5. A statement of Overriding Considerations [❑ was X❑ was not] adopted for this project.
6. Findings [El were ❑ were not] made pursuant to the provisions of CEQA.
This is to certify that the final EIR with comments and responses and record of project approval, or the
negative Declaration, is available to the General Public at:
Petaluma City Hall, City Clerks Office, 11 English Street, Petaluma, CA 94952
Signature (Public Agency)
Date: 6/6/2016
Title:
Environmental Services Manager
Date Received for filing at OPR:
Authority cited: Sections 21083, Public Resources Code.
Reference Section 21000-21174, Public Resources Code.
Revised 2011
5
Exhibit 1B
CITY OF PETALUMA, CALIFORNIA
WATER RECYCLING FACILITY
AND RIVER ACCESS IMPROVEMENTS
PROJECT
MITIGATION MONITORING PROGRAM
FOR CONSTRUCTION AND OPERATION OF
BRIDGE OVER ELLIS CREEK
SCH # 2001052089
March 2016
Prepared by
C
MITIGATION MONITORING PROGRAM
This Mitigation Monitoring Plan applies to the construction and operation of a bridge across Ellis
Creels as described in the Bridge Relocation Addendum dated March 2016.
BACKGROUND
The legal basis for the development and implementation of mitigation measures lies in the
California Environmental Quality Act (CEQA). Pursuant to Section 21002 of CEQA, public
agencies should not approve projects as proposed if there are feasible alternatives or feasible
mitigation measures available which would substantially lessen the significant environmental
effects of such projects. Subsection 21002.1 further requires that each public agency shall
mitigate or avoid the significant effects on the environment of projects it approves or carries out
whenever it is feasible to do so.
Assembly Bill (AB) 3180 was enacted in 1989 to ensure that required mitigation measures and
project alternatives were implemented. AB 3180 specifies the public agency's responsibility to
adopt a mitigation monitoring and reporting program:
SECTION I. Section 21081.6 is added to the Public Resources Code, to read: 21081.6.
When making the findings required by subdivision (a) of Section 21081 or when adopting
a negative declaration pursuant to paragraph (2) of subdivision (c) of Section 21081, the
public agency shall adopt a reporting or monitoring program for the changes to the
Project which it has adopted or made a condition of Project approval in order to mitigate
or avoid significant effects on the environment. The reporting or monitoring program
shall be designed to ensure compliance during Project implementation. For those changes
which have been required or incorporated into the Project at the request of an agency
having jurisdiction by law over natural resources affected by the Project, that agency
shall, if so requested by the lead or responsible agency, prepare and submit a proposed
reporting or monitoring program.
The reporting or monitoring program must be adopted when a public agency makes its findings
under CEQA so that the program can be made a condition of project approval in order to mitigate
significant effects on the environment.
Table 3 -1 lists all of the Project Measures and Mitigation Measures in the Mitigation Monitoring
Plan from the original 2002 Water Recycling Facility EIR. Those Project Measures and
Mitigation Measures that do not apply to the bridge component of the project are indicated in
PURPOSE
This Mitigation Monitoring Program is designed to serve as a tool for the evaluation of Project
compliance with mitigation measures adopted as part .ofthe 2002 Certified EIR, and revised in
the Bridge Relocation Addendum. The basic objectives of the Mitigation Monitoring Program
are to achieve the following:
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• To report to the City Council, and the public, information regarding compliance with the
EIR mitigation measures; and
To provide assurance and documentation that the studies and actions called for in the
mitigation measures are being performed as planned.
CHAPTER FORMAT
Compliance with Existing Programs
This section presents the applicable federal, state, regional, county, and local policies and
regulations with which the project must comply. Compliance with these policies and regulations
will result in avoidance and /or minimization of adverse environmental impacts.
Measures Included in the Project
This section presents a listing and description of measures and standards which were
incorporated into the original project design. The City has adopted these measures and
incorporated them as part of the project in order to avoid or minimize potential environmental
impacts. These measures represent standard engineering, design, construction, and maintenance
practices. Measures were developed to change the project and avoid potential impacts identified
by the public and federal, state, and local agencies. Other measures were developed as a result of
geotechnical, biological, cultural, and hydrological analysis in order to avoid or minimize
potential impacts.
Because these measures are part of the project, they do not qualify under the normal definition of
mitigation. However, these measures have been included in this chapter to provide a mechanism
to ensure that these measures are implemented and monitored, and to assist the reader in
understanding the commitments made by the City of Petaluma.
This section includes measures to be implemented in all phases of the project, including planning
and design, construction, operation, and maintenance. Compliance with these measures will
result in avoidance and /or minimization of adverse environmental impacts.
Mitigation Measures
This section contains a listing and description of mitigation measures recommended in Chapter 4,
Environmental Analysis, of the 2002 Certified EIR, and that are applicable to construction of the
bridge at the new location. The mitigation measures listed in this section are recommended to
avoid or reduce environmental impacts.
The mitigation measures generally require the construction manager to follow certain constraints
during construction and to repair and rehabilitate impacts resulting from construction of the
project. Compliance with all of these measures would result in the reduction of adverse
environmental impacts.
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ADMINISTRATION
The Director of the Public Works and Utilities Department and /or his /her designee will be
responsible for overall implementation and administration of the Mitigation Monitoring Program.
In order to carry out the mitigation monitoring program, the Director will designate a staff person
to serve as coordinator among the various agencies and departments. This person (Coordinator)
will ensure that each mitigation measure is implemented to the standards specified in the EIR and
is completed in a timely manner. If current staffing within the Department cannot absorb the
work demand to implement the program, a private contractor will be hired to manage and
coordinate the mitigation monitoring and reporting prograin. The contractor will serve under the
direction of the Director.
Administration of the Mitigation Monitoring Program will include the following:
• Documentation of permit approvals by other agencies;
• Compliance with conditions of project approval;
• Routine inspections and reporting activities;
• Plan checks;
• Coordination of activities of consultants hired by the City when such expertise and
qualifications are necessary;
• Coordination with applicable agencies that have mitigation monitoring and reporting
responsibilities (if any);
• Follow -up and response to citizens' complaints;
• Development of a work plan and schedule for monitoring activities;
• Maintenance of a mitigation monitoring checklist or other suitable mitigation compliance
summary;
• Implementation of corrective actions or enforcement measures, as needed;
• Preparation of reports of the status of implementation and monitoring of mitigation
measures; and
• Monitoring of financial resources associated with the program.
IMPLEMENTATION
Each responsible individual or agency listed as a "Monitoring Agency" in the Mitigation
Monitoring Program will be responsible for determining whether the mitigation measures
contained within the monitoring program have been implemented. A Monitoring Agency may
submit a Verification Report Form (see page 3 -6) or other verification report to the Coordinator
that documents compliance with each of the mitigation measures for which they are responsible.
Based on the information provided by the reports, the Coordinator will maintain a mitigation
monitoring checklist that documents the completion status of all required mitigation measures as
shown in Table 3 -1. Prior to issuance of grading or building permits, the Coordinator will review
the mitigation monitoring program checklist to ensure that the Project design is in compliance
with all mitigation measures that are required to be implemented as a condition of the permit.
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ENFORCEMENT
If a responsible individual or agency determines that compliance has not been achieved, a written
notice shall be delivered to the Director or Coordinator describing the non - compliance and
requiring compliance within a specified period of time. If non - compliance still exists at the
expiration of the specified period of time, construction may be halted, and /or remedies shall be
required, as appropriate and at the discretion of the Director.
APPROVAL AND CHANGES
This Mitigation Monitoring Program is adopted in conjunction with the project approvals for the
project. Subsequent changes to the Mitigation Monitoring Program may be approved by the
Director if deemed to meet the intent of said mitigation.
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Date:
Location:
Construction Sheet No.:
Condition:
VERIFICATION REPORT
Arrival Time:
Discipline:
❑
Archaeology
❑
Biology
❑
Soils /Geology
❑
Other
Departure:
❑ Dust /Air Quality
❑ Noise
Compliance: ❑ Acceptable ❑ Unacceptable ❑ Delay Activity
❑ Remedial Action hmplemented
❑ Work Stopped
❑ Follow -up Conference Required
Activity:
Observations:
Recommendations:
By: Report Approval:
Receipt By Project Supervisor:
Signature: Date: Time:
Comments /Actions:
Copies to:
Date Entered to Environmental Monitoring File:
By:
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Table 3 -1
Mitigation Monitoring Checklist — Ellis Creek Bridge
Mitigation Measure I Implementing Agency I Monitoring Agency Status ( Comments
Measures Included in the Project
PD 1 Uniform B„ location Assistance
Cit. of Petaluma
C:r.. ,.r .,R
PD -2 Purchase Locally Grown or
Inspected Plants
Design Engineer
City of Petaluma
PD -3 Liquefaction Protection
Design Engineer
City of Petaluma
PDA Seismic Design to Resist Ground
Shaking
Design Engineer
City of Petaluma
PD -5 Standard Engineering Methods for
Expansive Soils
Design Engineer
City of Petaluma
PD -6 Standard Engineering Methods for
Corrosive Soils
Design Engineer
City of Petaluma
Management
PD -8 Erosion, Stormwater Runnoff, and
Spill Control Measures
Construction Manager and
Design Engineer
City of Petaluma & San
Francisco Bay RWQCB
nn n Conduct Phase 11 c:to n....o..gment
at Hopper Street to Asses. !be
Potential for ^ IR,nination
beneath !he Sludge-Legoolas
C-45, of Petit
City or petalum
PO 10 Manitor Soil an Greundmyatew
During Demolition' Construction
F . C.:d- e -n-.,. 04: U,.-,...,1...... 1 "'ast..
fl47- Cer StFeet
C,.....1r.wlion Manager
C-it ,.vc� n talul-fla
DD 111 Test Suspeeied and Pi:.Pe4
14Pese of Soils and
City offietalmna
City ofPetalum
BD 1-2 inspect and Test G.. 1 pad hagpA
Pain!, A Asbestos ,.taming
A Aaiefial (ACM) in .. Buildings
at 950 Hopper S ree! that will be
Demolished
C-tin tmetion Art.....,.....
,.
Git. C�� Peialain
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Table 3 -1
Mitigation Monitoring Checklist — Ellis Creek Bridge
Mitigation Measure
Implementing Agency
Monitoring Agency
Status
Comments
nnrn 13 Mosquito PFevention
G:t., v
City ,.fpetat,uwa
PD -14 Construction Air Quality Controls
Design Engineer
City of Petaluma
nn 15 Pen, :.ting - and -Eentral orToxie
Air Contaminants
C-it. efpetaluma
Cit_. ofPctaltalla
PD 16 Odor Control
Design Engineer
Plant
C-45, afPetaluln
PD -17 Construction Noise Mitigation
Measures
Construction
Manager /City of Petaluma
City of Petaluma
nn 18 OpeFat:, nal Noise Mitigation
Measwes
Design Engimer
City ofPetaftana
PD 19 Prowetien 414i.terie and
A r,.t.ee..t.., iea' ReSO.....,...
C:t. ,.F� Petalu a
Git. tmma
PD -20 Protection of Previously
Undiscovered Historic and
Archeological Resources.
Design Engineer and City
of Petaluma
City ofPetalunta
PD -21 Landscaping Design
Design Engineer
City of Petaluma
119-2-2 ightingesign
no..:,.., ---bin ..,1 C:ty
„metal.. ,e
C-4 ,.ems
PD 23 Fire Protect :....
Design Engineer and City
of Pet�mt.. na
City e f Petaltm..,
Mitigation Measures
GW 1 Drinking Water We!! Protection C-4), ofPeialtana C:t. ,.rte, ;;a
n
City of ptualuma City o f
c,...r,. QG,.,t..,. t M
tarn 1hN i,k elnaaniior:.,b�.,,Ic.�oa.'.,.,, C-4 erte �ttr- Cit. ,.r fPeialunia
o..duetien Pr,,,.faB4
am 1e Pis(2 ett,, lheNAI,.t,.t,..t . a., C:t. aft C:t. of�fPat „na
Reduction F-THup,ni Mt)nitering and Source
.arn
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Table 3 -1
Mitigation Monitoring Checklist — Ellis Creek Bridge
Mitigation Measure
Implementing Agency
Monitoring Agency
Status
Comments
H,Wup,nt 1. anitmi and Seupee
Reduetiun
C it. orialt;nma
Ca. f� a llmna
WQ 10 Qiox:..rc.. an r,...gene.
Monitoring and Source Reduetion
Cit. oft
City or petal .lAa
BIO -1 a Aquatic Species Protection
Program
City of Petaluma
City of Petaluma
B49 lb D Tt. d d 1~ .7......, Fed
Plan! Protection PFOgFal-a ,
C:t. , ofPetalurna
Cit. oraj Petal . n,
RIO Is iVildlif Prot .. Drogrann
C:t. appet..l-
C:ty of ll.ma-
BIO -2a Active Raptor and Migratory Bird
Nest Protection Program
City of Petaluma
City of Petaluma
BIO -2b Rookery Protection Program
City of Petaluma
City of Petaluma
BI0-4 Prepare a Riparian Census and
Conceptual Riparian Mitigation
Plan
City of Petaluma
City of Petaluma
BIO 9 Create or Restore Wetlands and
aaateFs�, -ar�of tt,o _trreU.S.-
Cit. orpet.alt�,,...a
ra. Of Petal. nfla
To la z _Rerout` Croute onstruction l\t,.rt a
Trips
r,.�t.,,c{.ion- Manager
f
Cit. �.� oalu m,
o
Tn 11, install 9ignage t,. ZefGt4e
Employee and V isitai: Trip
City ofPetaluma
Cit. of—Tr Petaluma
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COMPLIANCE WITH EXISTING PROGRAMS
This section presents the applicable federal, state, regional, county, and local policies and
regulations that the project components are required to comply with. Compliance with these
policies and regulations, and fixture modifications thereof, is required, and will result in
avoidance and /or minimization of adverse environmental impacts.
Federal
Archaeological and Historic Data Preservation Act of 1974
California Toxics Rule
Clean Air Act of 1970, amended 1977 and 1990
Clean Water Act of 1977, amending the Water Pollution Control Act
Endangered Species Act of 1973, as amended (FESA)
Migratory Bird Treaty Act of 1918
Resources Conservation and Recovery Act
Rivers and Harbors Act of 1899, Section 10
U.S. EPA Federal Toxics rule
Water Pollution Control Act, as amended by the Clean Water Act of 1977; Section 404
State
Accidental Release Prevention and Hazardous Waste Control Laws
Alquist- Priolo Earthquake Fault Zone Act
California Clean Air Act
California Department of Fish and Wildlife Stream Bed Alteration Agreement (Fish and Game
Code Section 1602)
California Endangered Species Act (CESA) (Fish and Game Code Sec. 2050 -2098)
California Government Code, Sec. 65962.5, Hazardous Waste and Substances Sites List (Cortese
List
California Health and Safety Code, Section 25500 et seq. - Hazardous Materials Release
Response Plans and Inventory
California Native Plant Protection Act (Fish and Game Code Section 1900 -1913)
California Occupational Safety and Health Administration (Cal -OSHA)
Porter- Cologne Water Quality Control Act
State Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays,
and Estuaries of California (State Implementation Policy)
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Title 8, California Code of Regulations (CCR), Sec. 25500 et seq., Hazardous Material Storage
Title 8, California Code of Regulations (CCR), Sec. 1500 -1938, California Construction Safety
Regulations
Title 8, California Code of Regulations (CCR), Sec. 1539- 1541.1, Excavations
Title 8, California Code of Regulations (CCR), Sec. 1509 & 3203, Injury and Illness Prevention
Program
Title 8, California Code of Regulations (CCR), Sec. 1597 -1599, Vehicles, Traffic Control,
Flaggers, Barricades, and Warning Signs
Title 8, California Code of Regulations (CCR), Sec. 5194, Hazard Communication
Title 22, California Code of Regulations (CCR), Sec. 60301 et seq., Recycled /Reclaimed Water
Title 22, California Code of Regulations, Section 66260.1 et seq. - California Hazardous Waste
Regulations
Uniform Building Code (UBC) as amended locally
Water Quality Control Plan for the San Francisco Bay Basin (1995)
Regional
Bay Area Clean Air Plan
Bay Area Air Quality Management District Risk Management Policy
Bay Area Air Quality Management District Rules and Regulations
Petaluma
Petaluma General Plan
Petaluma Building and Grading Regulations
Petaluma Zoning Ordinance
Petaluma City Ordinance No. 1856, Heritage & Landmark Trees
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MEASURES INCLUDED IN THE PROJECT
This section presents the measures the City decided to incorporate into the Water Recycling
Facility & River Access Improvements Project. Those measures that are applicable to the
construction and operation of the larger Water Recycling Facility project, but that are not related
to construction of the bridge at the new location are listed below. The full text of those measures
applicable to the bridge component of the Project is provided on the following pages.
Project Measures not Applicable to Bridge Relocation
PD -1 Uniform Relocation Assistance
PD -7 Groundwater Monitoring and Management
PD -9 Conduct Phase II Site Assessment at Hopper Street to Assess the Potential for
Contamination beneath the Sludge Lagoons
PD -10 Monitor Soil and Groundwater during Demolition /construction for Evidence of
Hazardous Waste at Hopper Street
PD -11 Test Suspected and Properly Dispose of Contaminated Soils and Groundwater at
Hopper Street
PD -12 Inspect and Test for Lead -based Paint and Asbestos Containing Material (ACM)
Any Buildings at 950 Hopper Street that will be Demolished
PD -13 Mosquito Prevention
PD -15 Permitting and Control of Toxic Air Contaminants
PD -16 Odor Control
PD -18 Operational Noise Mitigation Measures
PD -19 Protection of Historic and Archaeological Resources
PD -22 Lighting Design
PD -23 Fire Protection
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PD -2 Purchase Locally Grown or Inspected Plants
Description: The City of Petaluma shall designate that the purchase of all plants
for the wetlands and restoration efforts shall be from locally grown
stock or from a nursery that has an approved monitoring program
for the glassy- winged sharpshooter.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: Upon certification of the EIR
Complete: Prior to the start of landscaping or restoration
Monitoring Agency: City of Petaluma
Validation: Specifications for restoration and landscaping contracts
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PD -3 Liquefaction Protection
Description: The City shall densify or solidify soil as necessary where site
specific conditions are identified that are liquefaction- prone.
Overexcavation and replacement of liquefiable soil will be viable
for some of the construction. Vibro - replacement or compaction
grouting would also be effective, especially in areas of deeper
excavation or trenching. Special foundation designs (e.g., pile or
structural slab) may be appropriate for structures such as the new
structures near existing Pond No. 10. Piles are not required for
new facilities in existing Ponds No. 1 and 4.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: Upon certification of the EIR
Complete: At completion of construction
Monitoring Agency: City of Petaluma
Validation: Specifications for each construction contract.
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PD -4 Seismic Design to Resist Ground Shaking
Description: The City shall take into account the high probability of strong
seismic ground shaking, by incorporating design features that
accommodate lateral movements and flexibility. Construction of
all facilities and earth embankments should meet UBC standards
for Seismic Zone 4, Seismic Source Type A, and Seismic
Coefficients of 0.44 Na (Ca) and 0.64 Na (Cv). UBC soil profile
type for the site is Sd and near source factors for the Rodger's
Creek fault are 1.19 (Na) and 1.58 (Nv). New facilities should be
designed in accordance with the Sonoma County building codes
which incorporate the seismic design for Zone 4 provisions of the
1997 Uniform Building Code.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: Upon certification of the EIR
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma
Validation: Specifications for each construction contract
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PD -5 Standard Engineering Methods for Expansive Soils
Description: The City shall implements standard geotechnical practices for
expansive soils, testing according to American Society for Testing
and Materials (ASTM) standards, and proper choice of materials
shall be required.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: Upon certification of the EIR
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma
Validation: Specifications for each construction contract
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PD -6 Standard Engineering Methods for Corrosive Soils
Description: The City shall sample soils for corrosivity and remove affected soils.
Facilities shall be constructed of materials not susceptible to
corrosion or designed to provide corrosion protection.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: Upon certification of the EIR
Complete: Upon completion of construction
Monitoring Agency: City of Petalu na
Validation: Specifications for each construction contract
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PD -8 Erosion, Stormwater Runoff, and Spill Control Measures
Description: The City shall develop and implement treasures designed to
prevent significant construction impacts to water duality.
Examples of possible measures include the following:
Construction Site Best Management Practices (BMPs)
ID
BMP Name
Temporary Soil Stabilization
SS -1
Scheduling
SS -2
Preservation of Existing Vegetation
SS -3
Hydraulic Mulch
SS -4
Hydroseeding
SS -5
Soil Binders
SS -6
Straw Mulch
SS -7
Geotextiles, Plastic Covers, & Erosion Control Blankets /Mats
SS -8
Wood Mulching
SS -9
Earth Dikes /Drainage Swales & Ditches
SS -10
Outlet Protection/Velocity Dissipation Devices
SS -11
Slope Drains
Temporary Soil Stabilization
SC -1
Silt Fence
SC -2
Desilting Basin
SC -3
Sediment Trap
SC -4
Check Darn
SC -5
Fiber Rolls
SC -6
Gravel Bag Berm
SC -7
Street Sweeping and Vacuuming
SC -8
Sandbag Barrier
SC -9
Straw Bale Barrier
SC -10
Storm Drain Inlet Protection
Wind Erosion Control
WE -1
I Wind Erosion Control
Tracking
Control
TC -1
Stabilized Construction Entrance /Exit
TC -2
Stabilized Construction Roadway
TC -3
Entrance /Outlet Tire Wash
FNon -Storm Water Management
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Construction Site Best Management Practices (BMPs)
ID
BMP Name
NS -1
Water Conservation Practices
NS -2
Dewatering Operations
NS -3
Paving and Grinding Operations
NS -4
Temporary Stream Crossing
NS -5
Clear Water Diversion
NS -6
Illicit Connection /Illegal Discharge Detection and Reporting
NS -7
Potable Water /Irrigation
NS -8
Vehicle and Equipment Cleaning
NS -9
Vehicle and Equipment Fueling
NS -10
Vehicle and Equipment Maintenance
Waste Management and Materials Pollution Control
WM -1
Material Delivery and Storage
WM -2
Material Use
WM -3
Stockpile Management
WM -4
Spill Prevention and Control
WM -5
Solid Waste Management
WM -6
Hazardous Waste Management
WM -7
Contaminated Soil Management
WM -8
Concrete Waste Management
WM -9
Sanitary /Septic Waste Management
WM -10
Liquid Waste Management
Source: Caltrans 2000.
In addition, stormwater runoff from the existing oxidation pond
site during operation shall be diverted into the wastewater
treatment system. Stormwater runoff from the visitors parking lot
on Parcel A shall be treated either by diversion into the wastewater
treatment system or installation of an oil and grease separator at the
bottom of the lot.
Construction within the Petaluma River or the lower portions of
Ellis Creek shall be performed from a barge and with divers when
appropriate. Excavation underwater shall be done with pressurized
water.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Construction Manager
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Timing: Start: Prior to start of construction
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma and San Francisco Bay Regional Water Quality
Control Board
Validation: Storm Water Pollution Prevention Plan
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PD -14 Construction Air Quality Controls
Description: The BAAQMD considers air quality impacts associated with
construction activities to be less than significant, if all applicable
control measures recommended in their CEQA guidelines are
implemented. The City shall incorporate the following into
construction contract specifications:
• Water all active construction areas with the potential to
generate significant amounts of dust at least twice daily and
more often during windy periods. Watering is the single -
most effective measure to control dust emissions from
construction sites. Proper watering could reduce dust
emissions by over 75 %.
• Cover all trucks hauling dirt or maintain at least two feet of
freeboard. Dust -proof chutes shall be used as appropriate
to load debris onto trucks during any demolition.
• Pave, apply water two times daily, or apply (non- toxic) soil
stabilizers on all unpaved access roads, parking areas, and
staging areas at construction sites.
• Sweep daily (with water sweepers) all paved access roads,
parking areas, and staging areas and sweep streets daily
(with water sweepers) if visible soil material is deposited
onto the adjacent roads.
• Hydro seed or apply (non- toxic) soil, stabilizers to inactive
construction areas (previously graded areas that are inactive
for 10 days or more).
• Enclose, cover, water twice daily, or apply (non- toxic) soil
binders to exposed stockpiles.
• Limit traffic speeds on any unpaved roads to 15 mph.
• Install sandbags or other erosion control measures to
prevent silt runoff to public roadways.
• Replant vegetation in disturbed areas as quickly as possible.
• Properly maintain construction equipment. This measure
could reduce emissions of ROG, NOx and PM10 by about
5%.
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• Prior to demolition activities, identify any hazardous
building materials or soils that may be disturbed during
construction /demolition. If hazardous materials are
identified, consult with the BAAQMD's Enforcement
Division to ensure that demolition activities will comply
with BAAQMD Regulations.
• Optional - hlstall wheel washers for all exiting trucks, or
wash off the tires or tracks of all trucks and equipment
leaving the site.
• Optional - If necessary, install windbreaks, or plant
trees /vegetative windbreaks at the windward side(s) of
construction areas.
• Optional - Suspend excavation and grading activity when
winds (instantaneous gusts) exceed 25 mph and visible dust
emission cannot be prevented from leaving the construction
site(s).
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: At the start of construction
Complete: Upon the completion of Project construction
Monitoring Agency: City of Petaluma
Validation: Specifications for each construction contract
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PD -17 Construction Noise Mitigation Measures
Description: The City shall incorporate the following conditions in related
construction contract agreements:
• Construction Scheduling. Limit noise - generating construction
activities, including truck traffic coining to and from the site
for any purpose, to daytime, weekday, non - holiday hours (7:00
am to 6:00 pin).
• Construction Equipment Mufflers and Maintenance. Properly
muffle and maintain all construction equipment powered by
internal combustion engines.
• Idling Prohibitions. Prohibit unnecessary idling of internal
combustion engines.
• Equipment Location and Shielding. Locate all stationary noise -
generating construction equipment such as air compressors as
far as practical from existing nearby residences and other noise -
sensitive land uses. Acoustically shield such equipment.
• Quiet Equipment Selection. Select quiet construction
equipment, particularly air compressors, whenever possible.
Fit motorized equipment with proper mufflers in good working
order.
• Noise Disturbance Coordinator. Designate a "noise
disturbance coordinator" who will be responsible for
responding to any local complaints about construction noise.
The disturbance coordinator would determine the cause of the
noise complaint (e.g., starting too early, bad muffler, etc.) and
would require that reasonable measures warranted to correct
the problem be implemented. Conspicuously post a telephone
number for the disturbance coordinator at the construction site
and include it in the notice sent to neighbors regarding the
construction schedule.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Construction Manager /City of Petaluma
Timing: Start: During construction
Complete: At the completion of construction
Monitoring Agency: City of Petaluma
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Validation: The City will perform daily checks to ensure compliance with this
measure. The City will respond to complaints from private citizens
regarding construction noise within 24 hours.
Construction noise shall be monitored at the nearest noise- sensitive
receptor locations(s) outside the project boundaries, during high
noise generating activity to determine compliance with local noise
criteria.
In the event that the noise criteria are exceeded, the construction
activities shall be reviewed to determine additional mitigation
measures to further reduce the construction noise. The telephone
number of the Noise Disturbance Coordinator shall be made
available to the residents around the project site so that annoyed
residents would be able to report their complaints.
City of Petaluma Water Recycling Facility & River Access Improvements Page MMP -23
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PD -20 Protection of Previously Undiscovered Historic and Archaeological
Resources
Description: If subsurface archaeological or historical remains are discovered
during construction, work in the area shall stop immediately and a
qualified professional archaeologist shall be consulted to develop,
if necessary, further mitigation measures to reduce any
archaeological impact to a less than significant level before
construction continues.
If human burials are encountered, all work in the area will stop
immediately and the Sonoma County coroner's office shall be
notified immediately. If the remains are determined to be Native
American in origin, both the Native American Heritage
Commission and any identified descendants must be notified and
recommendations for treatment solicited (CEQA Section 15064.5);
Health and Safety Code Section 7050.5; Public Resources Code
Section 5097.94 and 5097.98).
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer and City of Petaluma
Timing: Start: Upon certification of the EIR
Completion: Completion of construction
Monitoring Agency: City of Petaluma
Validation: A qualified professional archaeologist shall be consulted if
subsurface archaeological or historical remains are discovered.
City of Petaluma water Recycling Facility & River Access Improvements Page MMP -24
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PD -21 Landscaping Design
Description: The City shall provide landscaping to screen views of the site from
northwest -bound Lakeville Highway and residents east of the
highway. Landscape materials in the form of mature and fast -
growing trees (such as the poplars already on site) and other
appropriate vegetation at the site's southwestern perimeter would
screen the view from northwest -bound travelers. Where
technically feasible, locate new facilities on the southwest portion
of the site to increase the viewing distance from the highway.
Design the landscaping, buildings and facilities in character with
the surrounding agricultural uses and subject to site plan and
architectural review. If new fencing is necessary along Lakeville
Highway, locate new fencing for the wetlands area away from the
highway with a landscape buffer between the highway and the
fence.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: Design Engineer
Timing: Start: During construction.
Complete: Within one year of completing construction of a
Project component.
Monitoring Agency: City of Petaluma
Validation: Specifications for landscape and restoration contracts
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MITIGATION MEASURES
This section contains mitigation measures to be implemented prior to, during, and immediately
following project construction. These measures generally require the construction manager to
follow certain constraints during construction and to repair and rehabilitate impacts resulting
from construction of the project. Compliance with these mitigation measures would result in
minimizing, rectifying, or reducing adverse environmental impacts. Those measures that are
applicable to construction and operation of the larger Water Recycling Facility project, but that
are not related to construction of the bridge at the new location are listed below. The full text of
those measures applicable to the bridge component of the Project is provided on the following
pages.
Mitigation Measures not Applicable to Bridge Relocation
GW -1 Drinking Water Well Protection Program
WQ -1 a Chromium Monitoring and Source Reduction Program
WQ -1 b Nickel Monitoring and Source Reduction Program Program
WQ -1c Bis(2- ethylhexyl)phthalate Effluent Monitoring and Source Reduction Program
WQ -1d Constituents not Monitored in Effluent Monitoring and Source Reduction
WQ -1 e Dioxin /Furan Congener Monitoring and Source Reduction Program
1310-1b Rare, Threatened and Endangered Plant Protection Program
1310-1c Wildlife Protection Program
1310 -7 Create or Restore Wetlands and Waters of the U.S.
TR -1 a Reroute Construction Worker Trips
TR -1 b Install Signage to Reroute Employee and Visitor Trips
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B1O -1a Aquatic Species Protection Program
Description: The City shall implement an Aquatic Species Protection Plan, as
follows:
• A Worker Environmental Awareness Training Program for
construction personnel shall be provided.
• Any ground- disturbing construction activity in Ellis Creek (i.e., in
the bank or bed of the channel) shall be 1) conducted when no or
low freshwater flow from upstream into the work area (which will
potentially be tidal at the time of construction) is occurring to
avoid downstream transport of sediment and impacts on any
migrating salmonid fish, or other rare aquatic species; and 2)
conducted between coffer dams around which any tidal or stream
flow shall be routed. Prior to coffer dam installation, a qualified
biologist shall seine the area between the dams and the area within
25 feet of the dams to determine if sensitive species are present. If
sensitive species are present, they should be relocated in
consultation with NMFS, USFWS and DFG consistent with federal
and State regulations.
• Facilities shall be located and constructed using methods that
minimize the loss of existing riparian vegetation. Unavoidable loss
of riparian vegetation shall be mitigated by planting sufficient
riparian vegetation of like species so as to compensate for the loss.
• A 20 -foot buffer zone from the top of the bank of Ellis Creels shall
be established, where feasible, and fenced during construction.
• If aquatic habitat must be removed, create or restore like habitat on
site at a compensatory ratio of 2:1 (2 acres of restored habitat for
every 1 acre impacted) or as required by the Corps of Engineers.
Identify opportunities to improve current habitat conditions within
Ellis Creek and implement, where feasible. Cropped upland is
available as mitigation sites for salt marsh, freshwater marsh, or
stream impacts. Shollenberger Park also has sites available for
mitigation for river habitat impacts.
• Best management practices shall be implemented to control
erosion, sedimentation, and r•ruloff of pollutants. Detailed
specifications shall be incorporated onto bid documents and
construction drawings.
• Construction and grading activities that would affect Ellis Creek,
or upland areas that might erode into the creek, shall be restricted
to the dry season.
Lead Agency: City of Petaluma Water Resources and Conservation Department
City of Petaluma Water Recycling Facility & River Access Improvements Page MMP -27
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Implementing Agency: City of Petaluma
Timing: Start: After certification of the EIR start of construction
Complete: Upon completion of construction
Monitoring Agency: City of Petal una
Validation: Annual report
City of Petaluma Water Recycling Facility & River Access Improvements Page MMP -28
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BIO -2a Active Raptor and Migratory Bird Nest Protection Program
Description: The City shall retain a qualified biologist to conduct pre -
construction surveys to determine if any active raptor or migratory
bird nests occur within 500 feet of the project area at least two
weeks prior to initiation of construction activities.
If active nests are located in the study area, construction exclusion
zones shall be established around each active nest. Appropriate
construction. exclusion zones shall be established through
consultation with CDFG. Construction activities shall be
prohibited within exclusion zone until the end of the nesting
season.
During construction, a qualified biologist shall monitor each nest
to evaluate potential nesting disturbances caused by the
construction activities. The monitor shall have the authority to
stop construction if it appears to be having a negative impact on the
nesting raptors. The monitor shall also monitor the nest to
determine when the young have fledged and submit weekly reports
to the CDFG and the City of Petaluma throughout the nesting
season.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: City of Petaluma
Timing: Start: After certification of the EIR start of construction
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma
Validation: Anneal report
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B1O -2b Rookery Protection Program
Description: The City shall establish a construction exclusion zone around the
rookery located near pond 8 of the water treatment facility.
Furthermore, a qualified biologist will conduct pre - construction
surveys to determine if any other nests occur within 500 feet of the
project area. A construction exclusion zone shall be maintained
around each rookery between January 15 and June 15 to ensure that
no construction activities occur within 500 feet of an active
rookery (personal communication, Wilcox 2001).
A qualified biologist shall monitor the rookery to evaluate potential
disturbances caused by the construction activities. The monitor
shall have the authority to stop construction if it appears to be
having a negative impact on the rookery.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: City of Petaluma
Timing: Start: After certification of the E1R start of construction
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma
Validation: Annual report
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1310 -4 Prepare a Riparian Census and Conceptual Riparian Mitigation Plan
Description: A qualified biologist shall conduct a census of all riparian woody
vegetation from the top -of -bank and /or drip -line of the tree or
shrub canopy within the project area of the proposed Ellis Creek
bridge and approaches. The census will take place within the
staked and flagged areas of the site where ground disturbance will
take place. The census will include identification of riparian tree
and shrub species, counts of stems, and diameter at breast height
for those steins greater than 4- inches in diameter within the
construction footprint. The City will prepare a Riparian Mitigation
and Monitoring Plan to include a planting palette, a conceptual
planting plan, performance criteria, and procedures for
maintenance and monitoring. The plan will be written in sufficient
detail for a California Department of Fish & Wildlife 1602 Streambed
Alteration Agreement Streambed Alteration Agreement. Mitigation
will be on site, if possible, at a ratio of 2:1, namely 2 acres of
riparian forest for every acre impacted by the construction of the
proposed Ellis Creek Bridge. Mitigation sites will be preserved in
perpetuity.
Lead Agency: City of Petaluma Water Resources and Conservation Department
Implementing Agency: City of Petalu na
Timing: Start: After certification of the EIR start of construction
Complete: Upon completion of construction
Monitoring Agency: City of Petaluma
Validation: Annual report
City of Petaluma Water Recycling Facility R River Access Improvements Page MNIP -31
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ELLIS CREEK BRIDGE PROJECT
LOCATION MAP
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Date: MARCH 7, 2016
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City of Petaluma
PROJECT SITE �� F Public Works and Utilities
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Exhibit l C
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CITY OF PETALUMA, CALIFORNIA
WATER RECYCLING FACILITY
AND RIVER ACCESS IMPROVEMENTS
ENVIRONMENTAL IMPACT REPORT
BRIDGE RELOCATION ADDENDUM
March 7, 2016
Prepared by
40
Table of Contents
1 INTRODUCTION AND SUMMARY .......................................................................... ..............................1
2 PROJECT DESCRIPTION .......................................................................................... .............................11
3 MITIGATION MONITORING PROGRAM REVISIONS ...................................... .............................14
4 ENVIRONMENTAL ANALYSIS ................................................................................ .............................15
5 ALTERNATIVES TO THE PROPOSED PROJECT ............................................... .............................19
6 CEQA- REQUIRED SECTIONS .................................................................................. .............................19
7 PREPARERS ................................................................................................................. .............................20
City of Petaluma Water Recycling Facility &'River Access Improvements FIR Page TOC -I
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1 INTRODUCTION AND SUMMARY
BACKGROUND
The City of Petaluma currently operates the Ellis Creek Water Recycling Facility (Facility). An EIR for
the Ellis Creek Water Recycling Facility (titled the 11,ater Recycling Facility and River Access
Improvements EIR — State Clearinghouse #2001052089) was certified by the City of Petaluma in 2002.
Subsequent to EIR Certification, the City approved the project. The approved Project included a bridge
over Ellis Creek along the northeast border of the site adjacent to Lakeville Highway. The bridge
however, was not carried forward in subsequent plans for the site and was never built. The City now
proposes to build the bridge, but at a different location than that analyzed in the Water Recycling Facility
EIR. This minor change to the original Project is evaluated in this Bridge Relocation Addendum.
The Water Recycling Facility site is bisected by Ellis Creek, with the main facility and administration
offices on the northwest side of the creek and the oxidation ponds and ancillary facilities on the southeast
side. The oxidation ponds require access multiple times a day for both operations and maintenance
activities. To access the oxidation pond portion of the facility, operations and maintenance staff must
leave the main facility via Cypress Drive and travel more than a mile on Lakeville Highway to a gated
entrance. A bridge over Ellis Creek would facilitate access to both sides and reduce traffic on Lakeville
Highway.
This Addendum amends the original Water Recycling Facility EIR. Five other Addenda to the Water
Recycling Facility EIR have previously been adopted, but they are not related to the current revisions to
the project being evaluated in this Bridge Relocation Addendum. This Addendum concludes that the
relocation of the bridge does not result in new significant impacts and does not cause substantially more
severe significant impacts relative to the impacts previously disclosed in the Water Recycling Facility
EIR. Thus, an Addendum is the appropriate level of CEQA analysis and the appropriate method of
amending the 2002 Certified EIR, pursuant to Sections 15162 and 15164 of the Guidelines implementing
the California Environmental Quality Act (CEQA).
PUBLIC AND AGENCY COMMENTS
This Addendum is available for review at the City Clerk's Office located at City Hall at 11 English Street.
The Addendum is tentatively scheduled for consideration at the Petaluma City Council meeting to be held
on Monday, March 7, 2016, at 7:00 pin.
Written comments should be mailed or emailed to:
City of Petaluma
Ellis Creek Water Recycling Facility
3890 Cypress Drive
Petaluma, CA 94954
lwallcer @ci.petaluma.ca.us
Attention: Leah G. Walker, P.E., Environmental Services Manager
ORGANIZATION OF THE ADDENDUM
The Addendum is organized in a similar fashion to the 2002 Certified EIR.
• This Introduction and Summary Chapter includes Table 1 -1, a summary of the potential
significant impacts and mitigation measures associated with the approved project and the
proposed revisions.
City of Petaluma Water Recycling Facility & River Access Improvements EIR Page I
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• Chapter 2 contains a detailed description of the proposed modifications to the Project
Description.
• Chapter 3 presents the revisions to the Mitigation Monitoring Plpgram.
• Chapter 4 presents the changes to the environmental analysis due to the proposed revisions.
• Chapter 5 updates the Alternatives chapter.
• Chapter 6 updates the CEQA Issues chapter.
• Chapter 7 presents the preparers of this Addendum.
APPLICABILITY AND USE OF AN ADDENDUM
As directed by CEQA, California Public Resources Code Section 21166, and CEQA Guidelines Section
15162, when an EIR has been prepared for a project, no subsequent EIR shall be prepared, unless one or
more of the following circumstances occur:
1. Substantial changes are proposed in the project which will require major revisions of the previous
EIR or negative declaration due to the involvement of new significant environmental effects or a
substantial increase in the severity of previously identified significant effects;
2. Substantial changes occur with respect to the circumstances under which the project is undertaken
which will require major revisions of the previous EIR or negative declaration due to the
involvement of new significant environmental effects or a substantial increase in the severity of
previously identified significant effects; or
3. New information of substantial importance, which was not known and could not have been known
with the exercise of reasonable diligence at the time the previous EIR was certified as complete or
the negative declaration was adopted, shows any of the following:
a) The project will have one or more significant effects not discussed in the previous EIR or
negative declaration;
b) Significant effects previously examined will be substantially more severe than shown in the
previous EIR;
c) Mitigation measures or alternatives previously found not to be feasible would in fact be
feasible and would substantially reduce one or more significant effects of the project, but
the project proponents, decline to adopt the mitigation measure or alternative; or
d) Mitigation measures or alternatives which are considerably different from those analyzed in
the previous EIR would substantially reduce one or more significant effects on the
environment, but the project proponents decline to adopt the mitigation measure or
alternative.
The change in environmental impacts due to proposed changes in the project or changed conditions has
been evaluated and measured against the standards set forth in paragraphs 1, 2, and 3 above to determine
whether an Addendum is appropriate or a subsequent EIR is needed. The environmental analysis in
Chapter 4 provides the detailed examination of each of these issues. The conclusion is that none of the
circumstances which might require a subsequent or supplemental EIR has occurred, and that an
Addendum is, therefore, appropriate.
This Addendum should be read together with the full text of the 2002 Certified Petaluma Water Recycling
Facility and River Access Improvements EIR. Even though modifications to the adopted project are
minor, the modifications have been subjected to a detailed analytical process consistent with the
methodology and thresholds of significance applied in the 2002 Certified EIR.
Section 15164 of the Guidelines implementing the California Environmental Quality Act ( "CEQA ")
provides that an Addendum is the appropriate level of CEQA analysis when the circumstances defined in
City of Petaluma Water Recycling Facility & River Access Improvements EIR Page 2
March 2016 Bridge Relocation Addendum 8411271
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Section 15162 calling for preparation of a Subsequent EIR do not occur. As noted above, none of the
circumstances that require a Subsequent EIR are present. Thus, an Addendum is the appropriate level of
CEQA analysis and the appropriate method of amending the 2002 Certified EIR.
SIGNIFICANT AND UNAVOIDABLE ADVERSE IMPACTS
There are no new significant unavoidable environmental impacts as a result of the proposed revisions to
the project. The one significant unavoidable impact from the previously approved Project remains:
• Impact AG -1: Loss of approximately 149 acres of farmland on Parcels A and B
When the project was approved in August of 2002, a statement of overriding considerations was adopted,
explaining the City's reasons that the polishing wetlands and public educational and recreational facilities
were approved despite their significant impact on farmland.
IMPACT AND MITIGATION SUMMARY
No new significant impacts have been identified as a result of this addendum, and therefore, no new
mitigation measures have been developed. Table 1 provides a summary of the impacts and mitigation
measures that were identified in the 2002 Certified EIR for the approved project and those identified for
the proposed Project. The impacts and mitigation measures remain the same.
The impacts and mitigation measures are identified in one of three categories:
• Significant - Impact is significant before mitigation; some of these significant impacts can be
mitigated to a less than significant level, but others remain significant after mitigation.
• Less than Significant - Impact is not considered significant and no mitigation is required.
No Impact - The project has no effect on the resource described in the criterion.
Impact and Mitigation Summary
Approved Project and Project Modifications
Impact Approved Project Bridge Relocation Mitigation Measures for
2002 Certified EIR Addendum Bridge Relocation
1. Land Use
LU -1. Will the project be
Less than Significant
Less than Significant
No mitigation is necessary.
inconsistent with the Land use plan
map of an adopted General Plan?
LU -2. Will the project be
Less than Significant
Less than Significant
No mitigation is necessary.
inconsistent with zoning?
LU -3. Will the project be an
No Impact
No Impact
No mitigation is necessary.
incompatible land use type in the
MRZ -2 classification or in a
designated quarry area?
LU -4. Will the project introduce
No Impact
No Impact
No mitigation is necessary.
inappropriate uses in a
Community Separator?
LU -5. Will the project increase
Less than Significant
Less than Significant
No mitigation is necessary.
potential for conflict as a result of
incompatible land uses?
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March 2016 Bridge Relocation Addendum 841 1271
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Impact and Mitigation Summary
Approved Project and Project Modifications
Impact
Approved Project
Bridge Relocation
Mitigation Measures for
of farmland?
2002 Certified EIR
Addendum
Bridge Relocation
LU -6. Will the project convert
Less than Significant
Less than Significant
No mitigation is necessary.
non -urban land to urban uses for
Less than Significant
Less than Significant
No mitigation is necessary.
Project facilities?
LU -7. Will the project convert
No Impact
No Impact
No mitigation is necessary.
public open space for Project
facilities?
Less than Significant
Less than Significant
No mitigation is necessary.
LU -8. Will the project result in
Less than Significant
No Impact
No mitigation is necessary.
loss of homes due to construction
Significant
Significant
No feasible mitigation
of facilities?
available.
LU -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to disturb
Less than Significant
Less than Significant
No mitigation is necessary.
land uses?
2. Agriculture
AG -1. Will the project cause loss
Significant
Significant
No feasible mitigation
of farmland?
available.
AG -2. Will the project cause
No Impact
No Impact
No mitigation is necessary.
Williamson Act contracts to be
Less than Significant
Less than Significant
No mitigation is necessary.
canceled?
AG -3. Will the project cause
Less than Significant
Less than Significant
No mitigation is necessary.
damage to adjacent vineyards by
increasing glassy- winged
Less than Significant
Less than Significant
No mitigation is necessary.
sharpshooter populations?
AG -C1. Will the project have
Significant
Significant
No feasible mitigation
cumulative impacts to agriculture?
available.
3. Geology, Soils, and Seismicity
GS -1. Will project facilities be
Less than Significant
Less than Significant
No mitigation is necessary.
located within an area of unstable
slope conditions?
GS -2. Will project facilities be
Less than Significant
Less than Significant
No mitigation is necessary.
subject to ground rupture due to
location near a surface trace of an
active fault?
GS -3. Will project facilities be
Less than Significant
Less than Significant
No mitigation is necessary.
located in areas with soils and
groundwater conditions that are
susceptible to liquefaction during
an earthquake?
GS -4. Will earthquake - induced
Less than Significant
Less than Significant
No mitigation is necessary.
strong ground shaking damage
project facilities?
GS -5. Will construction ofthe
Less than Significant
Less than Significant
No mitigation is necessary.
project cause off -site water -
related erosion?
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Impact and Mitigation Summary
Approved Project and Project Modifications
Impact
Approved Project
Bridge Relocation
Mitigation Measures for
groundwater quality at existing
2002 Certified EIR
Addendum
Bridge Relocation
GS -6. Will project facilities be
Less than Significant
Less than Significant
No mitigation is necessary.
exposed to damage due to
Less than Significant
No Impact
No mitigation is necessary.
expansive soils?
Less than Significant
No hnpact
No mitigation is necessary.
GS -7. Will project facilities be
Less than Significant
Less than Significant
No mitigation is necessary.
exposed to damage due to
Less than Significant
Less than Significant
No mitigation is necessary.
construction on corrosive soils?
GS -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential for geologic
No Impact
No Impact
No mitigation is necessary.
or seismic impacts?
4. Groundwater
GW -1. Will the project degrade
Less than Significant
Less than Significant
No mitigation is necessary.
groundwater quality at existing
after Mitigation
drinking water wells, resulting in
a public health hazard?
Less than Significant
No Impact
No mitigation is necessary.
GW -2. Will the project cause
Less than Significant
No hnpact
No mitigation is necessary.
groundwater mounding or
increase groundwater levels that
Less than Significant
Less than Significant
No mitigation is necessary.
cause surface discharge in a non -
stream environment?
GW -3. Will the project lower
No Impact
No Impact
No mitigation is necessary.
groundwater levels at existing
wells?
GW -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
potential for cumulative
groundwater impacts?
S. Surface Water Quality
WQ -L Will the project discharge
Less than Significant
No Impact
No mitigation is necessary.
cause numeric -based criteria to be
after Mitigation
exceeded?
WQ -2. Will the project cause
Less than Significant
No Impact
No mitigation is necessary.
narrative -based criteria to be
after Mitigation
exceeded.
WQ -3: Will project construction
Less than Significant
Less than Significant
No mitigation is necessary.
result in a substantial degradation
of surface runoff quality?
WQ -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to cause
numeric or narrative -based
criteria to be exceeded?
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Impact and Mitigation Summary
Approved Project and Project Modifications
Impact Approved Project Bridge Relocation Mitigation Measures for
2002 Certified EIR Addendum I Bridge Relocation
6. Hydrology
H -1. Will the project discharge
Less than Significant
No Impact
No mitigation is necessary.
cause flooding anywhere along
the Petaluma River?
H -2. Will the project discharge
Less than Significant
No Impact
No mitigation is necessary.
cause streambank erosion in the
Petaluma River?
H -3. Will non - discharge project
Less than Significant
Less than Significant
No mitigation is necessary.
components cause flooding?
H -4. Will non - discharge project
Less than Significant
Less than Significant
No mitigation is necessary.
components cause streambank
erosion?
Less than Significant
Less than Significant
No mitigation is necessary.
H -Cl: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to cause
flooding or erosion?
7. Public Health and Safety
PHS -1. Will the project expose
Less than Significant
No Impact
No mitigation is necessary.
the public to chemicals,
radionuclides, pathogenic viruses,
bacteria, or other disease
organisms at concentrations
detrimental to human health?
PHS -2. Will the project expose
Less than Significant
Less than Significant
No mitigation is necessary.
workers or the public to hazards
from a known hazardous waste
site?
PHS -3. Will the project increase
Less than Significant
Less than Significant
No mitigation is necessary.
potential exposure of the public to
hazardous materials due to a
chemical release?
PHS -4. Will the project expose
Less than Significant
Less than Significant
No mitigation is necessary.
the public to safety hazards
associated with operation of
heavy machinery, vehicles, or
equipment; or creation of
accessible excavations (trenches,
pits, or borings); or creation of an
accessible open body of water?
PHS -5. Will the project increase
Less than Significant
No Impact
No mitigation is necessary.
the potential exposure of the
public to disease vectors (i.e.,
mosquitoes)?
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Table 1
Impact and Mitigation Summary
Approved Project and Project Modifications
8. Biological Resources
BIO -1. Will the project cause
Approved Project
Bridge Relocation
Mitigation Measures for
Impact
2002 Certified EIR
Addendum
Bridge Relocation
PHS -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative impact on public
health and safety?
8. Biological Resources
BIO -1. Will the project cause
Less than Significant
Less than Significant
BIO -la. Aquatic Species
loss of individuals or occupied
after Mitigation
after Mitigation
Protection program.
habitat of endangered, threatened,
or rare fish, wildlife or plant
species?
BI0-2. Will the project cause
Less than Significant
Less than Significant
BIO -2a. Active Raptor and
loss of active raptor nest,
after Mitigation
after Mitigation
Migratory Bird Nest
migratory bird nests, or wildlife
Protection Program.
nursery sites?
BIO -2b. Rookery
Protection Program.
BI0-3. Will the project cause
Less than Significant
Less than Significant
No mitigation is necessary.
permanent loss of sensitive
wildlife habitat?
BI0-4. Will the project cause
Less than Significant
Less than Significant
BIO -4. Prepare a Riparian
permanent loss of sensitive native
after Mitigation
after Mitigation
Census and Conceptual
plant communities?
Riparian Mitigation Plan
BIO -5. Will the project
Less than Significant
Less than Significant
BIO -la. Aquatic Species
substantially block or disrupt
after Mitigation
after Mitigation
Protection Program
major fish or wildlife migration or
travel corridors?
BIO -6. Will the project cause
Less than Significant
Less than Significant
BI0-1 a: Aquatic Species
permanent loss of aquatic habitat
after Mitigation
after Mitigation
Protection Program
(i.e., streams)?
BIO -7. Will the project destroy
Less than Significant
No Impact
No mitigation is necessary.
wetlands or other waters of the
after Mitigation
U.S.?
13I0-8. Will the project expose
Less than Significant
No Impact
No mitigation is necessary.
organisms to hazardous levels of
after Mitigation
toxic or bioaccunmlatory
substances?
BIO -Cl. Will the project have
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative impacts to biological
resources?
9. Traffic and Circulation
TR -1. Will project traffic cause
Less than Significant
No Impact
No mitigation is necessary.
congestion along study area
after Mitigation
roadways?
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Impact and Mitigation Summary
Approved Project and Project Modifications
Impact
Approved Project
Bridge Relocation
Mitigation Measures for
Project generate emissions that
2002 Certified EIR
Addendum
Bridge Relocation
TR -2. Will lane closures due to
Less than Significant
No Impact
No mitigation is necessary.
project construction cause traffic
delays, transit delays, restricted
Less than Significant
Less than Significant
No mitigation is necessary.
access, increased traffic hazards,
and rerouting of traffic, including
emergency vehicles?
Less than Significant
Less than Significant
No mitigation is necessary.
TR -3. Will project construction
Less than Significant
Less than Significant
No mitigation is necessary.
traffic increase traffic hazards to
motor vehicles, bicyclists, or
Less than Significant
Less than Significant
No mitigation is necessary.
pedestrians?
TR -4. Will project construction
Less than Significant
Less than Significant
No mitigation is necessary.
traffic damage public or private
Less than Significant
Less than Significant
No mitigation is necessary.
roadbeds?
TR -5. Will there be inadequate
Less than Significant
Less than Significant
No mitigation is necessary.
parking for project activities?
TR -6. Will project construction
Less than Significant
Less than Significant
No mitigation is necessary.
activities result in heavy vehicles
on roadways not designated or
suitable as truck routes?
TR -C1: Will there be traffic
Less than Significant
Less than Significant
No mitigation is necessary.
congestion along study area
roadways during the cumulative
conditions?
10. Air Quality
AQ -1. Will construction of the
Less than Significant
Less than Significant
No mitigation is necessary.
Project generate emissions that
expose people to high levels of
dust and equipment exhaust?
AQ -2. Will project emissions
Less than Significant
Less than Significant
No mitigation is necessary.
cumulatively exceed allowable
limits?
AQ -3. Will the project expose
Less than Significant
Less than Significant
No mitigation is necessary.
sensitive receptors to substantial
levels of toxic air contaminants?
AQ -4. Will project violate or
Less than Significant
Less than Significant
No mitigation is necessary.
contribute to violation of ambient
air quality standard?
AQ -5. Will the project cause
Less than Significant
Less than Significant
No mitigation is necessary.
potential odors?
AQ -Cl: Will the project have the
Less than Significant
Less than Significant
No mitigation is necessary.
potential to have a cumulative
impact to air quality?
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Impact and Mitigation Summary
Approved Project and Project Modifications
Impact Approved Project Bridge Relocation Mitigation Measures for
2002 Certified EIR Addendum I Bridge Relocation
11. Noise
N -1: Will construction of the
Less than Significant
Less than Significant
No mitigation is necessary.
Project expose the public to high
noise levels?
N -2. Will construction of the
Less than Significant
Less than Significant
No mitigation is necessary.
Project cause high noise levels
from construction traffic?
No impact
No impact
No mitigation is necessary.
N -3: Will operation and
Less than Significant
Less than Significant
No mitigation is necessary.
maintenance of the project expose
the public to high noise levels?
Less than Significant
Less than Significant
No mitigation is necessary.
N -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to disturb
noise - sensitive receptors during or
Less than Significant
Less than Significant
No mitigation is necessary.
after construction?
12. Cultural Resources
CR -1. Will the project disturb
Less than Significant
No Impact
No mitigation is necessary.
known, potentially - eligible
National or California Register
properties, including
archaeological, historical,
architectural, and Native
No impact
No impact
No mitigation is necessary.
American/ traditional heritage
resources?
CR -2. Will the project disturb
Less than Significant
Less than Significant
No mitigation is necessary.
unknown archaeological
resources?
CR -C1: Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to disturb
historical or cultural resources?
13. Visual Resources
VR -1. Will the project be
No impact
No impact
No mitigation is necessary.
inconsistent with the Sononna
County Open Space Element
regarding Community Separators
seen from public viewpoints?
VR -2. Will the project be
No impact
No impact
No mitigation is necessary.
inconsistent with the Sonoma
County Open Space Element
regarding Scenic Landscape Units
seen fi•om public viewpoints?
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Table 1
Impact and Mitigation Summary
Approved Project and Project Modifications
Impact
Approved Project
Bridge Relocation
Mitigation Measures for
demand for police, fire, park and
2002 Certified EIR
Addendum
Bridge Relocation
VR -3. Will the project be
Less than Significant
Less than Significant
No mitigation is necessary.
inconsistent with the Sonoma
County Open Space Element
regarding Scenic Corridors?
VR -4. Will the project be
Less than Significant
No Impact
No mitigation is necessary.
inconsistent with minimum
No Impact
No Impact
No mitigation is necessary.
building setbacks for structures
along Sonoma County designated
scenic corridors?
VR -5. Will the project cause an
Less than Significant
Less than Significant
No mitigation is necessary.
adverse effect on foreground or
Less than Significant
No Impact
No mitigation is necessary.
middle - ground views from a high
volume travelway, recreation use
area, or other public use area?
VR -6. Will the project cause an
Less than Significant
Less than Significant
No mitigation is necessary.
adverse effect on foreground
views from one or more private
residences
VR -7. Will the project create a
Less than Significant
No Impact
No mitigation is necessary.
new light source?
VR -Cl : Will the project have a
Less than Significant
Less than Significant
No mitigation is necessary.
cumulative potential to disturb
open space or visual resources?
14. Public Services and Utilities
PS -1. Will the project increase
Less than Significant
No Impact
No mitigation is necessary.
demand for police, fire, park and
recreation facilities, water, sewage
treatment and disposal or solid
waste removal to such a degree
that accepted service standards
are not maintained?
PS -2. Will project construction
No Impact
No Impact
No mitigation is necessary.
disrupt police, fire, schools, parks
and recreation facilities to such a
degree that accepted service
standards are not maintained?
PS-Cl: Will the project have a
Less than Significant
No Impact
No mitigation is necessary.
cumulative potential to impact
public services and utilities?
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51
2 PROJECT DESCRIPTION
LOCATION
A bridge over Ellis Creek was originally proposed along the northeast border of the project site, adjacent
to Lakeville Highway. This addendum evaluates relocating the bridge approximately 700 feet
downstream. Refer to Figure 1, Project Modifications, to see the bridge location from the 2002 Certified
EIR, and the proposed relocation as evaluated in this addendum.
BRIDGE DETAILS
The bridge would be pre - fabricated, assembled on -site, and lowered into place using a crane. The staging
area for assembly would be on the existing paved area to the north and northeast of the headworks, while
the crane pocket (i.e. staging for the crane) would be located in an area currently used for hay production,
as shown on Figure 2 Site Plan.
The bridge deck would be 12 feet wide with a 65 -foot span and rated for HL931 loading. The abutments
would have an estimated footprint of approximately 300 square feet each and would be located in excess
of five feet back from the top of bank. The bridge approaches, which would connect the bridge to the
existing roads, would be 15 feet wide with lengths of approximately 160 feet and 135 feet on the west and
east sides, respectively. The road connections would most likely be composed of compacted aggregate,
but may alternatively be asphalt. Refer to Figure 2 Site Plan, for additional details.
CONSTRUCTION SCHEDULE
Construction is expected to occur in October and November 2016, and would last for up to 45 days.
Temporarily impacted areas (i.e.: crane pocket, staging area) would be restored immediately after
construction of the bridge and road extensions are complete. Replacement tree planting would occur
during the months of November to April when the ground is moist and temperatures are moderate.
ENTITLEMENTS, PERMITS, AND APPROVALS
The following City of Petaluma entitlements and approvals may be required for the Project:
• Building Permit
• Grading Permit
• Planned Community Development Standards.
The following agency permits and approvals may be required for the Project:
• Section 404 Nationwide Permit, US Army Corps of Engineers
• Section 401 Water Quality Certification, San Francisco Regional Water Quality Control Board
• Streambed Alteration Agreement, California Department of Fish & Wildlife
I HL -93 load includes variations and combinations of truck, tandem, and lane loading. The design truck is a 3-
axle truck with variable rear axle spacing and a total weight of 72,000 pounds. The design tandem is a two -axle
vehicle, 25,000 pounds per axle, spaced 4 feet apart.
City of Petaluma water Recycling Facility & River Access Improvements FIR Page I1
March 2016 Bridge Relocation Addendum 8411271
52
LEGEND City or Petaluma Job Number 1 8411271
Water Recycling Facility EIR Revision
Q Original Approved Bridge Site Bridge Relocation Addendum Date Mar. 2016
Relocated Bridge Site zk -:
Project Modifications Figure 1
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City of Petaluma Job Number
&411271
Water Recycling Facility EIR Revision
Date
M., 2016
�,
Bridge Relocation Addendum
Bridge Site Plan Figure 2
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70752 ]9 Vwghdcm
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3 MITIGATION MONITORING PROGRAM REVISIONS
The following Mitigation Measure fi-om the 2002 Certified EIR is updated to conform to existing policies
of the California Department of Fish & Wildlife:
Mitigation Measure 13I0-4. Prepare a Riparian Census and Conceptual Riparian Mitigation
Plan
A qualified biologist shall conduct a census of all riparian woody vegetation from the top -of
bank and /or drip -line of the tree or shrub canopy within the project area of the proposed Ellis
Creek bridge and approaches. The census will take place within the staked and flagged areas
of the site where ground disturbance will take place. The census will include identification of
riparian tree and shrub species, counts of stems, and diameter at breast height for those sterns
greater than -24 inches in diameter within the construction footprint. The City will prepare a
Riparian Mitigation and Monitoring Plan to include a planting palette, a conceptual planting
plan, performance criteria, and procedures for maintenance and monitoring. The plan will be
written in sufficient detail for a C'-`FG 4603 California Department of Fish & Wildlife 1602
Streambed Alteration Agreement. Mitigation will be on site, if possible, at a ratio of 2:1,
namely 2 acres of riparian forest for every acre impacted by the construction of the proposed
Ellis Creek Bridge. Mitigation sites will be preserved in perpetuity.
No other changes are proposed to the 2002 Mitigation Monitoring Program.
City of Petaluma Water Recycling Facility & River Access Improvements EIR Page 14
March 2016 Bridge Relocation Addendum 8411271
55
4 ENVIRONMENTAL ANALYSIS
This Chapter consists of 14 sections, each of which presents the analysis of the proposed revisions to the
Project within a particular environmental discipline. The analysis refers back to the original evaluation of
impacts contained in the 2002 Certified EIR and identifies the change in impacts, if any, from the
previously approved Project. If there are no changes to the previous impact evaluation, an explanation for
this conclusion is provided. For those sections where a change in impacts is identified, the evaluation
criteria taken directly from the 2002 Certified EIR are also provided. For ease of reference, the evaluation
criteria table numbers remain the same as the numbering used in the 2002 Certified EIR.
Most of the information presented in the 2002 Certified EIR has not changed and is not repeated here.
Please refer to the 2002 Water Recycling Facility and River Access Improvements EIR for descriptions of
setting, discussion of methodology, and the complete identification and discussion of impacts.
4.1 LAND USE
The bridge, as a component of the original project, was determined to have less than significant impacts to
Land Use. The relocation 700 feet downstream from the original bridge site would not change that
analysis.
The land use designations identified in the 2002 Certified EIR for the Facility site, were Public and
Institutional on the east side of Ellis Creek and Land Extensive Agriculture on the west side of Ellis
Creek, with those on the west privately owned and under County jurisdiction. The 2002 Certified EIR
found that the Project facilities would be compatible with the Land Extensive Agriculture and Public and
Institutional designations because public buildings and structures were considered conditional uses within
the zoning designations.
After certification of the EIR, the City purchased the parcels on the west side of Ellis Creek, changed the
land use designation to Public and Institutional, and prezoned the site Planned Community District (as
well as rezoned the parcel on the east side of Ellis Creek). The bridge would be compatible with the
permitted and conditional uses at the site as it is an ancillary structure that supports the on -site uses. In
addition, the bridge would not be in conflict with Section 11, Circulation Plan, of the PCD.
hnplementation of the bridge at the new site would not cause new significant impacts or substantially
more severe impacts than identified in the 2002 Certified EIR.
4.2 AGRICULTURE
The proposed modification to the Project does not require revisions to the evaluation of Agriculture. The
2002 Certified EIR identified a significant and unavoidable loss of agricultural land due to construction of
the Water Recycling Facility, including all 149 acres of the site. Since completion of construction at the
Ellis Creek Water Recycling Facility, the City has leased some land on the site to a local farmer for hay
production. The approach to the bridge on the west side would remove less than 0.06 acre of land from
hay production. The original EIR identified the loss of 100 percent of the farmland on the site. Therefore,
the impact of the bridge relocation on agricultural land would be no more than what was identified in the
2002 Certified EIR. The impact was identified as significant and unavoidable.
No change to the impacts on agricultural resources relative to Williamson Act land and glassy - winged
sharpshooter populations would occur due at the new bridge site. Project Measure PD -2, Purchase
Locally Grown or Inspected Plants, would continue to be implemented, as needed. The proposed relocated
bridge site would not cause new significant impacts or substantially more severe impacts than identified in
the 2002 Certified EIR.
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4.3 GEOLOGY, SOILS, AND SEISMICITY
The proposed change to the Project does not require revisions to the evaluation of Geology, Soils and
Seismicity. The entire site was evaluated in the original EIR, and the modifications will not result in any
new impacts as the type of facilities, general location, and geologic setting remains the same. The bridge
relocation would not create the potential for additional or different geologic hazards. Project Measures
included in the Project to address liquefaction, ground shaking, and expansive and corrosive soils would
still be applicable. Construction of the bridge at the new location would not cause new significant
impacts or substantially more severe impacts than identified in the 2002 Certified EIR.
4.4 GROUNDWATER
The proposed change to the Project does not require revisions to the evaluation of Groundwater. The
facilities at the Water Recycling Facility were found to have less - than - significant impacts to groundwater
because they are in completely contained structures and would not interfere with groundwater recharge.
The relocation of the proposed bridge would not change this analysis. There would be no new significant
impacts or substantially more severe impacts than identified in the 200 Certified EIR.
4.5 SURFACE WATER QUALITY
The proposed change to the Project does not require revisions to the evaluation of Surface Water Quality.
Placement of a bridge over Ellis Creek was evaluated in the 2002 Certified EIR; relocation of the bridge
would not change that analysis. The City's discharges and recycled water reuse would continue to meet
standards set by federal, state, and regional agencies.
As indicated in the 2002 Certified EIR, construction activities for the bridge would have the potential to
cause discharge of pollutants to waterways through erosion and accidental spills. Measure PD -8, Erosion,
Stormwater Runoff, and Spill Control Measures, adopted as part of this Project, requires the City to
develop and implement measures designed to prevent significant construction and operational impacts to
water quality. Construction of the bridge at the new location would not cause new significant impacts or
substantially more severe impacts than identified in the 2002 Certified EIR.
4.6 HYDROLOGY
The proposed change to the Project does not require revisions to the evaluation of Hydrology. There
would be no additional discharge associated with the bridge relocation. The bridge footings would
increase impervious surfaces at the Facility site by approximately 600 square feet. If constructed of
asphalt, the bridge connections would increase impervious area by 4,425 square feet. However, the bridge
would be approximately the same size as that analyzed in the 2002 Certified EIR. Therefore, impervious
surfaces would not substantially increase. The bridge abutments would be set back at least five feet from
the top of bank and would not impede the creek flow such that it would result flooding. Construction of
the bridge at the new location would not cause new significant impacts or substantially more severe
impacts than identified in the 2002 Certified EIR.
4.7 PUBLIC HEALTH AND SAFETY
The proposed change to the Project does not require revisions to the evaluation .of Public Health and
Safety. The bridge would be constructed in an area that is generally inaccessible to the public. The
relocation of the bridge does not change the production of recycled water, increase the use of hazardous
materials, or increase exposure to disease vectors. The proposed bridge relocation would not cause new
significant impacts or substantially more severe impacts than identified in the 2002 Certified EIR.
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4.8 BIOLOGICAL RESOURCES
On September 30, 2015, the bridge relocation site was evaluated to verify that the habitat is the same as
what was evaluated in the 2002 Certified EIR. The results of the site evaluation were reported in a memo
dated October 26, 2015, entitled Ellis Creek ffl'utef' Recycling Facilh)� Ellis Creek Bridge Project. The
evaluation found that the riparian forest, wetland, and cropland vegetation communities in the location of
the relocated bridge site were unchanged from previous studies described in the 2002 Certified EIR.
In Table 4.8 -6, Project Impacts to Sensitive Habitats, of the 2002 Certified EIR, impacts related to the
Ellis Creek Bridge are identified as 0.19 acre of temporary and 0.13 acre of permanent impacts to riparian
forest, and 0.03 acre of temporary and 0.02 acre of permanent impacts to wetlands and waters from
installation of the bridge. The original bridge required fill on the bank and slope of the east bank to
compensate for an elevation difference between the banks.
The relocated bridge would be located in the same area that was previously disturbed to accommodate a
pipeline installed beneath Ellis Creek during construction of the original Facility. Because this portion of
Ellis Creek was temporarily disturbed during construction of the original facility, it is the site of post -
construction restoration. The restoration included re- planting native shrubs and trees to replace those that
were removed during installation of the pipe, as well as invasive plant removal. Placement of the bridge at
this location would require removal of some of the trees that were planted as part of the restoration. The
bridge abutments and approaches at the new location would cover an area of approximately 0. 12 acre. Of
this, less than half would result in permanent impacts to riparian habitat. Approximately .03 acre of
temporary impact to riparian would occur along the edges of the approaches. The permanent and
temporary impact to riparian forest would be significantly less than the impacts to riparian forest
identified in the 2002 Certified EIR.
The bridge design at the new location would not result in any fill to wetlands or waters. Therefore,
wetland and water impacts at the new location would be less than that analyzed in the 2002 Certified EIR.
Project modifications would not cause additional impacts to wetlands or waters, riparian areas, sensitive
habitat, trees, migration corridors or streams beyond those that were identified in the 2002 Certified EIR.
The construction of the bridge at the proposed new location would abide by the same restrictions and be
subject to the same project measures and mitigation measures as the existing Water Recycling Facility.
These measures include BIO -la Aquatic Species Protection Program, BIO -2a Active Raptor and
Migratory Bird Nest Protection Program, BIO -2b Rookery Protection Program, and BIO -4 Prepare
Riparian Census and Conceptual Riparian Mitigation Plan. Construction of the bridge at the new location
would not cause new significant impacts or substantially more severe impacts than identified in the 2002
Certified EIR.
4.9 TRANSPORTATION
There would be no increased operational traffic from implementation of the bridge. In fact, back and forth
trips along Cypress Drive and Lakeville Highway to access the east side of the Facility site would be
reduced by 2 to 3 round trips per day. Construction traffic would increase traffic on South McDowell
Boulevard by 2 to 6 vehicles per day during the 6 -week construction period. This is significantly less than
what was evaluated in the 2002 Certified EIR. Neither construction nor operation of the bridge at the new
location would cause new significant impacts or substantially more severe impacts than identified in the
2002 Certified EIR.
4.10 AIR QUALITY
The proposed change to the Project does not require revisions to the evaluation of Air Quality. Measure
PD -14 Construction Air Quality Controls, included in the Project to address air quality during
construction would still be applicable. Operation of the bridge would not create new air emissions. There
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could be a slight decrease in mobile emissions as a result of the shorter travel distance between the east
and west side of the Facility site. Neither construction nor operation of the bridge at the new location
would cause new significant impacts or substantially more severe impacts than identified in the 2002
Certified FIR.
The proposed change to the Project does not require revisions to the evaluation of Noise. Construction
noise would be substantially less than the noise levels identified in the 2002 Certified FIR for the
construction of the Water Recycling Facility. In addition, the bridge site is located more than 1,000 feet
from the nearest sensitive receptor, within intervening topography. Construction traffic also would be
much less than the construction traffic for the original construction of the facility. The proposed bridge
relocation would not result in any new operational noise activities, as vehicles already operate in the
vicinity of the new proposed bridge location. Neither construction nor operation of the bridge at the new
location would cause new significant impacts or substantially more severe impacts than identified in the
2002 Certified FIR.
4.12 CULTURAL RESOURCES
The proposed change to the Project does not require revisions to the evaluation of Cultural Resources.
The entire Facility site was evaluated in the original FIR The proposed bridge location is within that
footprint and would not result in any new impacts. Measures included in the Project to address unknown
cultural resources would still be applicable. Construction of the bridge at the new location would not
cause new significant impacts or substantially more severe impacts than identified in the 2002 Certified
FIR.
4.13 VISUAL RESOURCES
The proposed change to the Project does not require revisions to the evaluation of Visual Resources. The
bridge site would be located approximately 700 feet downstream of its original proposed location and
approximately 750 feet south /southwest of Lakeville Highway. Given its location adjacent to Lakeville
Highway and the Facility site boundary, the original location for the bridge was more prominent and
visible to travelers and surrounding residences. At the proposed new location, the bridge would not be
visible to residences due to intervening buildings and landscaping, but could be briefly and intermittently
visible from travelers on Lakeville Highway. Therefore, no new significant visual impacts would occur
resulting from view obstruction or degradation of visual quality.
The bridge does not include any new lighting, therefore there would be no impact related to a new light
source. Construction of the bridge at the new location would not cause new significant impacts or
substantially more severe impacts than identified in the 2002 Certified FIR.
4.14 PUBLIC SERVICES AND UTILITIES
The proposed change to the Project does not require revisions to the evaluation of Public Services and
Utilities. The modifications will not change the demand for public services nor the potential disruption of
emergency services that was analyzed in the Certified FIR. Emergency vehicles will still be able to
access the site from two locations: from Cypress Drive and directly from Lakeville Highway via a gravel
road. Implementation of the bridge at the new location would not cause new significant impacts or
substantially more severe impacts than identified in the 2002 Certified FIR.
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5 ALTERNATIVES TO THE PROPOSED PROJECT
The proposed changes to the Project are minor and would not affect the relative comparison of
alternatives presented in the Certified FIR. Nor do the proposed changes require the consideration of new
or revised alternatives, because environmental impacts are not substantially greater than previously
reported, and there are no new significant effects.
6 CEQA- REQUIRED SECTIONS
GROWTH- INDUCING IMPACTS OF THE PROJECT
The potential for growth inducement would not increase due to the proposed relocated bridge site,
because the bridge location does not affect the capacity of the Water Recycling Facilities.
SIGNIFICANT AND UNAVOIDABLE ADVERSE IMPACTS
There are no new significant unavoidable environmental impacts as a result of the proposed revisions.
The one significant unavoidable impact from the approved Project remains:
• Impact AG -1: Loss of approximately 149 acres of farmland on Parcels A and B
When the project was approved in August of 2002, a statement of overriding considerations was adopted,
explaining the City's reasons that the polishing wetlands and public educational and recreational facilities
were approved despite their significant impact on farmland.
ENVIRONMENTALLY SUPERIOR ALTERNATIVE
The 2002 Certified EIR identified the Environmentally Superior Alternatives as both Alternative 4,
Hopper Street, and Extended Aeration, because they would have similar levels of environmental impacts
and therefore both qualify as the Environmentally Superior Alternative.
However, since approval of the project in August 2002, the Hopper Street site has been reduced in size
due to approval of a homeless shelter on the site, and is no longer large enough to accommodate the
project.
There are no new impacts related to the relocation of the bridge and therefore the relative comparison of
alternatives does not change. Therefore, the approved project, Extended Aeration, continues to be the
Environmentally Superior Alternative.
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7 PREPARERS
LEAD AGENCY
The City of Petaluma is the lead agency under CEQA for the preparation of the Petaluma Water
Recycling Facility and River Access Improvements EIR Bridge Relocation Addendum.
Staff Member
Role
Dan St. John, F. ASCE
Director, Petaluma Department of Public
Works and Utilities
Leah Godsey Walker, P.E.
Environmental Services Manager, Department
of Petaluma Public Works and Utilities
Erica Altman Smithies, P.E. Senior Civil Engineer
DOCUMENT PREPARATION
GHD
Staff Member Role
Pat Collins
Quality Control
Kristine Gaspar
Project Planner
Renee Remillard
Graphics Designer
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