HomeMy WebLinkAboutStaff Report 5.B 5/19/2014Agenda Item #5.M
01
DATE: May 19, 2014
TO: Honorable Mayor and Members of the City Council through City Manager
FROM: Dan St. John, F.ASCE — Director, Public Works & Utilities
Leah Walker, P.E. — Environmental Services Manager
SUBJECT: Resolution Authorizing City Manager to Execute a Cooperative Agreement with
Sonoma County Water Agency to Provide Funding and Support Information for
US Geological Survey Study of the Petaluma Valley Groundwater Basin
It is recommended that the City Council adopt the attached Resolution authorizing the City
Manager to Execute a Cooperative Agreement with Sonoma County Water Agency (SCWA) to
Provide Funding of up to $464,150 Over Three Years and to Provide Support Information for a
United States Geological Survey (USGS) Study of the Petaluma Valley Groundwater Basin.
BACKGROUND
The Petaluma Valley Groundwater Basin stretches from Penngrove south to the Marin County
line and San Pablo Bay, encompassing about 94 of the approximately 146 square miles of the
Petaluma River Watershed. The basin was last evaluated in 1982 by the California Department
of Water Resources. Determining the effects of future groundwater development and identifying
efficient strategies for groundwater management are both necessary components in assuring that
groundwater continues as a reliable water supply for Petalmva during drought periods and other
times when deliveries to the City from its principle water supply is curtailed by SCWA.
SCWA has proposed a study to evaluate the groundwater resources of the Petaluma Valley Basin
using USGS technical expertise and partial USGS funding. The proposed study would model the
process that was refined during analogous studies of the Sonoma Valley, Alexander Valley and
Santa Rosa Plain ground water basins. SCWA is proposing that they and the City of Petaluma
partner 50150 to fund the cost of the study after 22% funding from USGS. The USGS would also
provide technical resources for the study. The objective of the study is to develop an updated
assessment of the hydrogeology, geochemistry and geology of the Petaluna Valley, including
development of a Geographical Information System (GIS) database, collection and interpretation
of water quality data and strearitlow measurements, estimates of annual groundwater pmnping
and groundwater recharge, and development of a groundwater model. Ultimately, the technical
findings from the study would be used to craft a basin management plan, and to identify potential
Agenda Review:
City Attorney Finance Director City Manage
ground water basin recharge projects. With the effects of climate change, Petaluma's water
supply from the Russian River system is expected to experience greater extremes between
drought periods and periods of excess rainfall. Therefore, it is essential to the City that
groundwater be better understood for use during periods of drought or to provide a local
emergency water supply when SCWA's Russian River system is impacted. As the City moves
towards conjunctive use or a portfolio concept of water supply (i.e. relies on multiple sources of
water supply), recharging groundwater with winter water or excess rainfall will become more
critical to assure that the groundwater basin is full before a drought arrives and is used during the
drought to augment SCWA supplies.
DISCUSSION
Petaluma purchases potable water from the Sonoma County Water Agency via the Petaluma
aqueduct. During periods of supply curtailments caused by drought or emergency order
conditions (i.e. catastrophic system failures), the City supplements water supplies through the
use of City owned wells that pump groundwater from the Petaluma Valley Groundwater Basin.
Since the last comprehensive study of the basin by the California Department of Water
Resources in 1982, the City has experienced urbanization and population growth resulting in
increased water demands.
The USGS is proposing this groundwater study to provide hydrologic information needed by
Sonoma County Water Agency, the City of Petaluma, the California Department of Water
Resources (DWR) and other management and regulatory agencies to better understand the
potential impacts of increasing groundwater use on groundwater levels, stream -aquifer
interaction, and water quality. The proposed study addresses USGS strategic science directions
and will consider several priority USGS and DWR water resource issues including surface and
groundwater interactions, conjunctive use of surface water and groundwater, effects of
urbanization on water resources, and hydrologic -system management.
Specific tasks performed by USGS will be: (1) data compilation, utilizing Geographic
Information Systems (GIS); (2) new data collection, focusing on water -quality sampling; (3) data
interpretation and geohydrologic characterization, including refining hydrologic budgets and
updating conceptual models of the groundwater -flow system based on the new data and the
results of ongoing USGS geologic studies in the basin; and, (4) development of a groundwater -
flow model. The results of all four parts of the study will be summarized in a USGS report.
The Sonoma County Water Agency and the City of Petaluma will provide partial funding for the
study and will provide technical review and input of the draft study.
The proposed action meets Council Goal: "Plan for the future."
FINANCIAL IMPACTS
The base cost of the study is estimated to be approximately $1,185,600 over three years. USGS
has indicated the study may be eligible for up to $257,300 in federal matching fiords over the
three-year study period. Assuming the study qualifies for complete matching federal funds, a
balance of $928.300 would be split equally by the Water Agency and City over the three year life
of the study. The cost breakdown per year for the City is as follows: FY 13/14 - $161,050; FY
14/15 - $191,550; FY 15/16 - $111,550 for a total cost to the City of $464,150. The project is
budgeted and will be funded through the Department of Public Works and Utilities Water
Administration find 6700.67100.54140. If federal matching funding is not received, the Water
Agency and City will consider whether to fully find the study or negotiate a reduced scope of
work with the USGS.
ATTACHMENTS
1. Resolution
?. Cooperative Agreement
Attaclu lent 1
RESOLUTION AUTHORIZING CITY MANAGER TO EXECUTE A COOPERATIVE
AGREEMENT WITH THE SONOMA COUNTY WATER AGENCY TO PROVIDE
FUNDING OF UP TO $464,150 OVER THREE YEARS AND TO PROVIDE SUPPORT
INFORMATION FOR A US GEOLOGICAL SURVEY STUDY OF THE PETALUMA
VALLEY GROUNDWATER BASIN
WHEREAS, The Sonoma County Water Agency (SCWA) provides potable water to the
City via its transmission system under the terms of the Restructured Agreement for Water Supply
dated 6/23/06; and,
WHEREAS, The City utilizes groundwater pumped from the Petaluma Valley
Groundwater Basin (Basin) as a supplemental source of water supply to meet the 40% local
supply capacity goal in the Restructured Agreement, and has the need to increase groundwater to
augment regional supply from the Water Agency during periods of supply curtailments caused
by drought or emergency order conditions; and,
WHEREAS, The City wishes to evaluate technical factors related to use of existing and
future wells; conjunctive use of surface, recycled, and ground waters; and water quality
implications of groundwater utilization; and,
WHEREAS, A comprehensive study of the Basin was last completed in 1982 by the
California Department of Water Resources in cooperation with the Water Agency; and,
WHEREAS, SCWA and the United States Geological Survey (USGS) have proposed a
study to evaluate the groimdwater resources of the Basin in generally the same manner as
successfully employed in Sonoma Valley, Alexander Valley, and the Santa Rosa Plan; the
objective of the study is to develop an updated assessment of the hydrogeology, geochemistry,
and geology of the Petaluma Valley, including development of a Geographical Information
System (GIS) database, collection and interpretation of water quality data and streamflow
measurements, estimates of groundwater recharge and annual groundwater pumping, and
development of a groundwater model; and,
WHEREAS, The Water Agency and City have agreed to share in the study costs
allocated to "total local funds" by a ratio of 50% each to Water Agency and the City; and,
WHEREAS, The purpose of the Cooperative Agreement is to (1) identify funding
sources for the local share requirement by which $928,300 could be contributed to pay for the
study of the Basin, (2) provide for USGS funding of approximately 22 percent of the total study
costs, estimated to be $1,185,600 and (3) establish the scope of responsibilities between the
parties to the study and a working relationship among technical staff, together with tools and
protocols that will be necessary for the success of the study, as well as any future groundwater
management strategies; and,
NOW, THEREFORE, BE IT RESOLVED that the Petaluma City Council hereby:
1. Approves the Cooperative Agreement included as Attachment 2 for Funding and Support
Information for US Geological Survey Study of the Petaluma Valley Groundwater Basin
for a period of three years for a total cost of $464,150.
2. Authorizes the City Manager or his designee to execute said agreement and related
documents on behalf of the City of Petaluma.
Attachment 2
sip/crt: \\fileserver\data\techw\crt`assignments current\trotta marcus- Petaluma valley groundwater study -city funding Inv 1314-037)\1314-037
clean draft for city.docx version: 5/8/201410:25:00 AM TW 13/14-037
"Working Today for Water Tomorrow"
The Sonoma County Water Agency's Integrated Management Policy for ISO 9001 and 14001 states that we are committed to always Improving,
achieving customer satisfaction, total regulatory compliance, environmental stewardship, and resource management.
DRAFT Cooperative Agreement to Provide Funding and Support Information
for Petaluma Valley Groundwater Study
This agreement ("Agreement") is by and between Sonoma County Water Agency, a body
corporate and politic of the State of California ("Water Agency") and City of Petaluma, ("City"). The
Effective Date of this Agreement is the date the Agreement is last signed by the parties to the
Agreement, unless otherwise specified in Paragraph 7.1 (Term of Agreement).
RECITALS
A. The Water Agency provides potable water to the City via its transmission system.
B. The City utilizes groundwater pumped from the Petaluma Valley Groundwater Basin (Basin) as a
supplemental source of water supply and has the need to increase groundwater supply to bolster
local supply targets to augment regional supply from the Water Agency during periods of supply
curtailments caused by drought or emergency order conditions. The City wishes to evaluate
technical factors related to use of existing and future wells; conjunctive use of surface, recycled,
and ground waters; and water quality implications of groundwater utilization.
C. A comprehensive study of the Basin was last completed in 1982 by the Department of Water
Resources in cooperation with the Water Agency.
D. Water Agency and the United States Geological Survey (USGS) have proposed a study to evaluate
the groundwater resources of the Basin. The objective of the study is to develop an updated
assessment of the hydrogeology, geochemistry, and geology of the Petaluma Valley, including
development of a Geographical Information System (GIS) database, collection and interpretation of
water quality data and streamflow measurements, estimates of groundwater recharge and annual
groundwater pumping, and development of a MODFLOW groundwater model.
E. The base cost of the study is estimated to be approximately $1,185,600 over three years. USGS has
indicated the study may be eligible for up to $257,300 in federal matching funds over the three-
year study period. Assuming the study qualifies for complete matching federal funds, a balance of
$928,300 would be paid by Water Agency and City over the life of the study. If federal matching
funding is not received, Water Agency and City will consider whether to fully fund the study or
negotiate a reduced scope with the USGS.
F. Water Agency is willing to enter into an agreement with USGS for the study (USGS Agreement)
provided that City is willing to share in the funding responsibility.
G. Water Agency and City have agreed to share in the study costs allocated to "total local funds" by a
ratio of 50% each to Water Agency and the City.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study 1
H. The purpose of this Agreement is to (1) provide a funding mechanism by which $928,300 could be
contributed to pay for the study of the Basin and (2) establish a working relationship among
technical staff, together with tools and protocols that will be necessary for the success of the study,
as well as any future groundwater management strategies.
In consideration of the foregoing recitals and the mutual covenants contained herein, the parties
hereto agree as follows:
AGREEMENT
1. RECITALS
1.1 The above recitals are true and correct.
LIST OF EXHIBITS
2.1 The following exhibits are attached hereto and incorporated herein:
a. Exhibit A: Cost Allocation
b. Exhibit B: Study Description
c. Exhibit C: Draft Joint Funding Agreement with USGS
2.2 In case of any conflict between the terms of the Agreement and the exhibits, the terms
of these documents control and prevail in the following order: 1) Agreement,
2) Exhibit A, 3) Exhibit B, and 4) Exhibit C.
3. COMMUNICATION/DESIGNATED REPRESENTATIVES
3.1 The persons designated below shall, upon execution of this Agreement, have authority
to grant discretionary approvals identified in this Agreement. Except as otherwise
specifically provided in this Agreement, any notice, submittal, or communication
required or permitted to be served on a party, may be served by personal delivery to
the person or the office of the person identified below. Service may also be made by
mail, by placing first-class postage, and addressed as indicated below, and depositing in
the United States mail to:
Water Agency
City
Project Manager: Marcus Trotta
Project Manager: Dan St. John or designee
404 Aviation Boulevard
202 North McDowell Boulevard
Santa Rosa, CA 95403-9019
Petaluma, CA 94954
Phone: (707) 547-1978
Phone: (707) 778-4546
Email: marcus.trotta@scwa.ca.gov
Email: dstjohn@ci.petaluma.ca.us
Designated Representative:
Designated Representative:
Grant Davis, General Manager
John Brown, City Manager
4. COST SHARING
The estimated cost to complete the three-year groundwater study as outlined in this
Agreement is $1,185,600. City and Agency shall share in the $928,300 local share cost of the
study as listed in Exhibit A and paragraph 7. If federal matching funding is not received, Water
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study
Agency and City will consider whether to fully fund the study or negotiate a reduced scope with
the USGS.
S. WATER AGENCY RESPONSIBILITIES
5.1 Prepare and negotiate a proposed agreement with the USGS to provide funding to
support the groundwater study in generally the form attached as Exhibit C. Water
Agency to keep City reasonably informed during the negotiations and consulted prior to
committing to any terms of agreements or amendments thereto potentially affecting
the City.
5.2 Act as liaison with USGS, prepare initial GIS data, and provide technical review, project
management, and project coordination. This responsibility includes coordinating any
necessary technical review meetings and providing at least quarterly status updates to
City at such meetings and as needed.
5.3 Coordinate with City and assist with data acquisition.
5.4 Distribute draft copies of reports received from USGS to City, notifying the City of any
USGS requirement regarding confidentiality, and distribute final copies of reports
received from USGS to City, including electronic data files related to GIS and hydrologic
modeling.
5.5 Distribute final reports to the public during the term of the study.
5.6 If requested, assist City's staff in making any presentations to City's governing council or
other public forums regarding the study.
5.7 Maintain complete and accurate records of all transactions in compliance with generally
accepted accounting principles for enterprise accounting as promulgated by the
American Institute of Certified Public Accountants and the Governmental Accounting
Standards Board. Maintain complete project files with all correspondence, including
letters and meeting notes. Such records shall be available to all parties at all reasonable
times for inspection and analysis.
5.8 Water Agency will invoice City for City's share of the study cost as described in
Paragraph 6.1, below, and in Exhibit A of this Agreement as follows:
a. FY 13/14: Upon execution of the contract with USGS.
b. FY 14/15: Approximately July 1, 2014.
c. FY 15/16: Approximately July 1, 2015.
6. CITY RESPONSIBILITIES
6.1 Within 60 calendar days of receipt of each Water Agency invoice as described in
Paragraph 5.8 above, City shall deposit with Water Agency its share of the study cost as
described in Exhibit A of this Agreement.
6.2 City's Project Manager shall provide technical review and comment on draft work
products and study results during the course of the study and shall attend technical
review meetings to the extent practicable. The City shall maintain the confidentiality of
any draft USGS reports to the extent Water Agency notifies them that such
confidentiality is requested by the USGS, subject to City's obligations under the
California Public Records Act. City shall make available to Water Agency and USGS all
technical data in its possession relevant to the groundwater study.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study
6.3 The City shall have the right to review and approve any changes in scope or funding for
the Project that could potentially affect the City including an increased financial
commitment.
6.4 City shall cooperate with Water Agency efforts to obtain additional funding for
groundwater studies.
ADDITIONAL REQUIREMENTS
7.1 Term of Agreement: This Agreement shall expire on December 31, 2017, unless
terminated earlier in accordance with the provisions of Article 8 (Termination).
7.2 Authority to Amend Agreement: Changes to this Agreement may only be made by
written amendment, signed by all parties. Minor changes, which do not increase the
amount paid under the Agreement, and which do not significantly change the scope of
work or significantly lengthen time schedules may be executed by the Water Agency's
General Manager in a form approved by County Counsel and by City's City Manager.
7.3 No Waiver of Breach: The waiver by any party of any breach of any term or promise
contained in this Agreement shall not be deemed to be a waiver of such term or
promise or any later breach of the same or any other term or promise contained in this
Agreement.
7.4 Making of Agreement: City and Water Agency acknowledge that they have each
contributed to the making of this Agreement and that, in the event of a dispute over the
Agreement's interpretation; the language of the Agreement will not be construed
against one party in favor of another. City and Water Agency acknowledge that they
have each had an adequate opportunity to consult with counsel in the negotiation and
preparation of this Agreement.
7.5 No Third -Party Beneficiaries: Nothing contained in this Agreement shall be construed to
create, and the parties do not intend to create, any rights in third parties.
7.6 Applicable Law and Forum: This Agreement shall be construed and interpreted
according to the substantive law of the State of California. Any action to enforce the
terms of this Agreement or for the breach thereof shall be brought and tried in the
County of Sonoma.
7.7 Captions: The captions in this Agreement are solely for convenience of reference. They
are not a part of this Agreement and shall have no effect on its construction or
interpretation.
7.8 Merger: This writing is intended both as the final expression of the Agreement between
the parties with respect to the included terms and as a complete and exclusive
statement of the terms of the Agreement, pursuant to Code of Civil Procedure Section
1856. No modification of this Agreement shall be effective unless and until such
modification is evidenced by a writing signed by both parties.
7.9 Time of Essence: Time is and shall be of the essence of this Agreement and every
provision.
7.10 Entire Agreement: This Agreement is the entire Agreement between the parties.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study
F-1
8.1 Either party may terminate its participation in this Agreement by giving 180 calendar
days advance written notice to the other party of its intent to terminate its participation
in this Agreement. Termination shall not relieve the City of its obligation to pay costs
and expenses related to the USGS Agreement or otherwise allocated prior to the
effective date of the termination. Water Agency's right to terminate may be exercised
by Water Agency's General Manager.
9. INDEMNIFICATION
9.1 Except as provided in Paragraph 9.2 below, each party shall indemnify, defend, protect,
hold harmless, and release the other, their officers, agents, and employees, from and
against any and all claims, losses, proceedings, damages, causes of action, liability, costs,
or expense (including attorneys' fees and witness costs) arising from or in connection
with, or caused by any negligent act or omission or willful misconduct of such
indemnifying party or its agents, employees, contractors, subcontractors, or invitees.
This indemnification obligation shall not be limited in any way by any limitation on the
amount or type of damages or compensation payable to or for the indemnifying party or
its agents, employees, contractors, subcontractors, or invitees under workers'
compensation acts, disability benefit acts, or other employee benefit acts.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study
IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date last signed
by the parties to the Agreement.
IN WITNESS WHEREOF, the parties hereto have executed this Agreement as set forth below.
Approved:
By:
Department Director
Approved:
By:
Finance Director
Approved as to form:
By:
City Attorney
Approved:
By:
City's Risk Manager
City of Petaluma
By:
City Manager
Date:
Attest:
By:
City Clerk
Reviewed as to substance:
Bv:
Water Agency General Manager
Reviewed as to funds:
By:
Water Agency Division Manager -
Administrative Services
Approved as to form:
Bv:
County Counsel
Sonoma County Water Agency
Bv:
Chair, Board of Directors
Date:
Attest:
Bv:
Clerk of the Board
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study 6
Exhibit A
Petaluma Valley Groundwater Study Cost Allocation
Required Cost Allocation for Years 1 through 3
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study A-1
Total Local Funds
Potential USGS
Study Year
SCWA
Petaluma
(SCWA+Petaluma)
Funds
TOTALS
FY 13/14
$161,050
$161,050
$322,100
$85,900
$408,000
FY 14/15
$191,550
$191,550
$383,100
$100,100
$483,200
FY 15/16
$111,550
$111,550
$223,100
$71,300
$294,400
Total Cash
1
--------
Funding
$464,150
$464,150
$928,300
$257,300
$1,185,600
i
i
1
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study A-1
Exhibit B
Study Description
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-1
PROJECT PROPOSAL COVER SHEET
PROJECT TYPE:
Standard: X
Number: CA12D E
USGS Area: Pacific Southwest
DATE (Initial): 12/8/2011
DATE (Revised):
CENTER: California Water Science Center
PROJECT LONG TITLE: Water Resources Availability and
PROJECT SHORT TITLE:
Management in Sonoma County, California: Phase 4—Evaluation of
Petaluma Valley Evaluation
the Groundwater Resources of the Petaluma Valley
COOP REPAY'
PROJECT CHIEF: Tracy Nishikawa
BEGIN DATE:(mo/yr): 10/2014
Add-on or Extension
END DATE: (mo/yr): 10/2016
Cooperator(s): Sonoma County Water Agency and city of Petaluma
Cooperator Contact(s): Marcus Trotta (707-547-
of Current Work:
1978)
PROJECT TYPE:
Standard: X
De Minimis
Proposals written
Other
2015 2016
(Under $50K):
for RFPs*:
(repetitive work, technical
$
$
COOP REPAY'
advice, etc.):
Monitoring
Add-on or Extension
USGS-Funded
COOP DIRE
Only:
of Current Work:
Projects:
$
*--reminder, the USGS does not compete with the private sector; BUT there are some RFPs we can apply to
PROPOSED PUBLICATION TYPE(S):
Scientific Investigative Open File Report Fact Sheet:
Report (SIR): X (OFR):
Journal Article: Letter: Professional Paper:
Abstract: Poster: Other (specify)
ESTIMATED PROJECT FUNDING
Choose one: firm probable questionable
Data Series:
Book Chapter:
FISCALYEAR
2014
2015
2016
2015 2016
OFA/FEDERAL'
$
$
$
$
COOP REPAY'
$
$
$
$
COOP DIRE
$
$
$
$
COOP UNMATCHED'
$
$
$
$
COOP TOTAL'
$322,100
$383,100
$223,100
FMFs:
$85,900
$100,100
$71,300
TOTAL FOR FY:
$408,000
$483,100
$294,400
Note: Projects that continue for more than 3 years must submit an add-on proposal in the third year
1. Funds coming from Hoar another Federal Agency.
2. Portion of cooperator dollars we are matching.
3. we don't usually do this, but sometimes Go does. It is when they put up labor against a cooperator's dollars.
4. Portion of cooperator dollars that are unmatched.
5. Repay plus Unmatched equals the amount of cooperator funding
By submitting this cover sheet along with the appropriate document packages to the Program Office, you are
acknowledging that the Program Chief has approved the work.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-2
SUMMARY
Title: Evaluation of the groundwater resources of the Petaluma Valley
Cooperating agency: Sonoma County Water Agency (SCWA) and City of Petaluma
Period of project: 2014-2016
Geographic Scope: The Petaluma Valley in Sonoma County.
Problem: The city of Petaluma, located in the Petaluma Valley and home to about 12 percent of the
population of Sonoma County, faces growth in population and demand for water. Water supply is
provided primarily by water delivered via aqueduct from the Russian River; however, groundwater is a
vital supplemental source of water for the city of Petaluma and is the primary source of supply for
agriculture and domestic use by rural property owners. Water managers face the challenge of meeting
the increasing water demand with a combination of Russian River water, which has uncertainties in its
future availability, and local groundwater resources. Water managers need to determine the likely
effects of future groundwater development in the Petaluma Valley and to identify efficient strategies
for surface-water/groundwater management that will assure the long-term viability of water supply.
Objectives: The primary objective of this study is to develop an updated assessment of the
geohydrology and geochemistry of the Petaluma Valley. This new information will establish the
framework for the future development of a coupled watershed/ groundwater -flow model for the
Petaluma Valley. The model will provide a tool to evaluate the hydrologic impacts of alternative
groundwater management strategies for the basin.
Relevance and Benefits: The proposed study will provide hydrologic information needed by Sonoma
County Water Agency, the city of Petaluma, and other management and regulatory agencies to better
understand the potential impacts of increasing groundwater use on groundwater levels, stream -
aquifer interaction, and water quality. The proposed study addresses USGS strategic science directions
"A Water Census of the United States" (accessed at URL:
http://Pubs.usgs.gov/circ/2007/13o9/pdf/C1309.pdf). The study will consider several priority U.S.
Geological Survey (USGS) water -resource issues including surface- and groundwater interactions,
conjunctive use of surface water and groundwater, effects of urbanization on water resources, and
hydrologic -system management.
Approach: Specific tasks will be: (1) data compilation, utilizing a Geographic Information System (GIS);
(2) new data collection, focusing on water -quality sampling; (3) data interpretation and geohydrologic
characterization — including refining hydrologic budgets and updating conceptual models of the
groundwater -flow system based on the new data and the results of ongoing USGS geologic studies in
the basin; (4) development of a groundwater -flow model. The results of all four parts of the study will
be summarized in a USGS report.
Anticipated products: A USGS scientific investigation report (SIR) will describe the updated
geohydrologic characterization of the Petaluma Valley as well as the development, calibration, and
application of the groundwater -flow model. This groundwater -flow model is anticipated to be the first
step in the development of a coupled surface water/groundwater-flow model.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-3
Water Resources Availability And Management In Sonoma County, California:
Phase 4– Evaluation Of The Groundwater Resources Of The Petaluma Valley
PROBLEM
The city of Petaluma, located in the Petaluma Valley and home to about 12 percent of the population
of Sonoma County, faces growth in population and demand for water. Water supply is provided
primarily by water delivered via aqueduct from the Russian River; however, groundwater is a vital
supplemental source of water for the city of Petaluma and is the primary source of supply for
agriculture and domestic use by rural property owners. Water managers face the challenge of meeting
the increasing water demand with a combination of Russian River water, which has uncertainties in its
future availability, and local groundwater resources.
The two overarching groundwater management questions in the Petaluma Valley are:
1. What will be the effects of future groundwater development in the Petaluma Valley?
In particular, the increase in groundwater demand resulting from urban growth and
other land use changes will affect water levels, recharge, surface -water discharge,
and water quality. Current regional water -quality concerns in the Petaluma Valley
include iron, manganese, arsenic, nitrate, and high salinity.
2. What are efficient strategies for surface-water/groundwater management that will
assure the long-term viability of water supply in the Petaluma Valley? Historically,
individual groundwater users in the Petaluma Valley– municipal, agricultural, and
domestic – have proceeded independently in their utilization of groundwater. As
pumpage has increased, it is becoming clear that changes in pumpage in one location
can affect groundwater conditions elsewhere in the basin. Similarly, Russian River
water and groundwater have historically been used as separate sources of supply,
but not explicitly managed in a linked manner. The increasing water demand,
potential reduction in availability of Russian River water, and increasing
environmental awareness in the region make integrated surface-water/groundwater
management essential. Management strategies may include enhanced groundwater
recharge projects, such as aquifer storage and recovery (ASR) projects or stormwater
retention/groundwater-recharge projects. Enhanced groundwater -recharge projects
could be operated on a seasonal basis to capture surplus winter flows or on a multi-
year climatic basis to store water for drought protection.
To properly address these two questions requires a thorough reassessment of the geohydrology and
geochemistry of the Petaluma Valley and the development of a groundwater -flow model of the valley.
SCOPE
This proposal describes a cooperative project that will study and report on the geohydrology and
groundwater -management issues of the Petaluma Valley. This project will be the fourth phase of the
countywide work plan delineated in the U.S. Geological Survey (USGS) proposal for study of "Water
Resources Availability and Management in Sonoma County, California." That proposal describes
countywide water management and the importance of the linkage between the Russian River basin –
the main source of water supply—and the other basins that are dependent, in part, on Russian River
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-4
water. This long-term cooperative plan involves geohydrological assessment of each of the county's
major groundwater basins, including the development of geographic -information systems (GIS) and
groundwater -flow models. Phase 1 addressed Alexander Valley, Phase 2 addressed the Sonoma Valley,
and Phase 3 addressed the Santa Rosa Plain watershed.
Phase 4 will be completed in two parts: (1) develop an updated assessment of the geohydrology and
geochemistry of the Petaluma Valley using available data and data that can be collected from existing
wells and (2) using the results from part 1, develop a groundwater -flow model. These new data and the
model will refine the understanding of the dynamics of groundwater flow in the valley The model will
be used to evaluate the hydrologic impacts of alternative groundwater -management strategies for the
valley. In addition, the assessment and model will be used to identify data gaps (e.g. locations where
depth -dependent water -quality and geologic data are needed).
RELEVANCE AND BENEFITS
The USGS cooperative program with the Sonoma County Water Agency (SCWA) has been developed to
study the integrated multi -basin management of groundwater resources in Sonoma County. As in the
first three phases, the proposed work in this phase will provide much of the hydrologic information
needed by SCWA to better understand the potential affects of increasing groundwater use on
groundwater levels, stream discharge, stream -aquifer interaction, and water quality. In particular,
municipalities in the Petaluma Valley (primarily the city of Petaluma), and other associated
management and regulatory agencies will benefit from this phase of the work. Through the
hydrogeologic characterization efforts associated with this study, which includes groundwater -level
monitoring, information and possible data sources could be identified to assist in the city of Petaluma's
efforts in complying with the California Statewide Groundwater Elevation Monitoring (CASGEM)
Program. The proposed study also will provide the information needed by SCWA and others to
efficiently utilize the County's surface- and groundwater resources. Researchers with the Central
Mineral and Environmental Resources Science Center (CMERSC) are currently studying the
geohydrologic framework of coastal basins in California, including the Petaluma Valley. The timing of
the proposed cooperative water -resource study in Petaluma Valley with the ongoing CMERSC study of
the coastal basins will allow researchers with California Water Science Center (CAWSC) and CMERSC to
collaborate and develop a more thorough understanding of the Petaluma Valley geohydrology than
would result from CAWSC and CMERSC working individually. In addition, combining the efforts of
CAWSC and CMERSC will result in a better product at a reduced total cost to the cooperators by
reducing any duplication of effort. The proposed study addresses USGS strategic science directions "A
Water Census of the United States" (accessed a URL:
http://Pubs.usgs.gov/circ/2007/1309/`pdf/C1309.pdf). This project will consider several priority water -
resource issues including surface- and groundwater interactions, conjunctive use of surface water and
groundwater, effects of urbanization on water resources, and hydrologic -system management. The
long-term plan for this cooperative program, after completion of groundwater -flow models of
individual basins, is to develop a model that interrelates surface water, both local and imported, with
the multiple groundwater basins for optimization of water -resources utilization in Sonoma County.
Such a model will provide transferable tools for analyzing multi -basin water -management plans in
other areas of the nation.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-5
GENERAL HYDROLOGIC DESCRIPTION OF THE PETALUMA VALLEY
The Petaluma Valley (fig. 1) is located in southern Sonoma County and is one of several valleys in the
Coast Ranges Geomorphic Province of Northern California defined by bordering northwest -southeast
trending mountains. The proposed study area stretches from Penngrove south to the Marin County
line and San Pablo Bay, encompassing about 94 of the approximately 146 square miles (miz) of the
Petaluma River Watershed. The Petaluma River and its tributaries provide the main surface drainage
for the area, flowing generally from north to south into San Pablo Bay. The Petaluma River had an
average discharge of about 300 cubic feet per second (cfs) during water years 1999-2008 at the USGS
gaging station 11459150 in the city of Petaluma. In comparison, the average discharge of the Russian
River at USGS gaging station 11467000 near Guerneville was about 2,000 cfs (U.S. Geological Survey,
2010).
The USGS (Cardwell, 1958) and the California Department of Water Resources (Herbst, 1982) have
completed studies of the Petaluma Valley. Cardwell identified the main water -bearing units to be the
Pliocene Merced Formation, the Pliocene -to -Pleistocene Glen Ellen Formation, and the Pleistocene and
Recent alluvium. Herbst (1982) stated that the two major water -producing zones in the Petaluma
Valley are the Merced Formation and the alluvial fan deposits (Pleistocene to Holocene). Other
potential water -bearing units in the basin include the Pliocene Petaluma Formation and Sonoma
Volcanics.
The general direction of groundwater flow is from the uplands to the east and west of the valley
towards the center of the valley. Cardwell (1958) noted that the streams in the Petaluma Valley were
generally fed by discharge from groundwater and that most groundwater recharge is from direct
precipitation. As groundwater pumpage has increased, the stream -aquifer dynamics have likely
changed.
Water supply in the Petaluma Valley is met by combinations of surface -water delivery from the Russian
River and groundwater from local basins. Petaluma is the largest city in the valley with a population of
57,941 people as of April 1, 2010 (California Department of Finance, 2010). It utilizes primarily Russian
River water for water supply, but maintains wells as a supplementary source. Historically, the city's
annual groundwater production has ranged from 0 to more than 1,400 acre-ft/year (Dodson-Psomas
Engineers, 2007). For the 2009 calendar year, groundwater accounted for more than 12 percent (1,071
acre -ft) of Petaluma's water supply (Kim Rosmaier, California Department of Water Resources, unpub.
data, 2010). In addition, numerous private wells in the Petaluma Valley provide water for agriculture,
livestock, and domestic use.
�et�9:Z�LC�1a
The study will characterize the hydrogeology and geochemistry of Petaluma Valley by means of four
principal tasks: (1) data compilation — a GIS will be the primary means of organizing data for archiving,
searching, interrelating, and displaying hydrologic and related information; (2) collection of new data,
with a focus on water -quality sampling; and (3) data interpretation and geohydrologic characterization
— including refining hydrologic budgets, and updating conceptual models of the groundwater -flow
system based on the new data and the results of ongoing USGS geologic studies in the basin; and (4)
development and application of a groundwater -flow model. The results of all four parts of the study
will be described in a USGS report.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-6
All water -level and water -quality data will be entered into the USGS NWIS (National Water Information
System) database. Approximately 10 percent of the number of environmental samples collected will be
added as quality -control samples. These samples will include blanks and replicates, and will be
targeted for selected constituents as needed. All GIS metadata will be documented according to USGS
guidelines (http://gio.usgs.gov/egis/metadata/).
1. Development of Geographic Information System (GIS)
The USGS will work collaboratively with SCWA and the city of Petaluma to develop a GIS database of
the Petaluma Valley. This work will build on the existing databases that have been developed for the
Petaluma Valley by SCWA, the city of Petaluma and the USGS. Additional sources of data include the
California Department of Water Resources, California Department of Public Health, and the Sonoma
County Department of Health Services. The GIS will form the basis for all subsequent tasks, including
determination of needs for new data collection. The GIS developed for this study will include the
following information: drillers' logs; electric logs; historic groundwater levels; historic pumpage; land
use; aquifer tests and specific -capacity tests; and chemical analyses.
2. New Data Collection
Water -quality samples will be collected from selected wells, springs, and streams. Initially, existing
wells will be used and selected based on compiled data in the GIS and in consultation with SCWA
technical staff. Sampling will focus on delineating the source and age of groundwater in the main
water—bearing zones in the Petaluma Valley and characterizing the current water quality. The sampling
will build on the recent water -quality data collected as part of the USGS Groundwater Ambient
Monitoring and Assessment (GAMA) program (Kulongoski and others, 2006; 2010). For this study,
water -quality analysis will include basic inorganic constituents and nutrients. The stable isotopes of
oxygen and hydrogen will be used to provide information on sources of recharge, and tritium/helium
and/or carbon-14 analyses will be used to provide information on groundwater age and travel time.
Specific analyses of constituents of particular concern, such as arsenic, iron, manganese, and nitrate
also will be conducted. Elevated concentrations of sodium and chloride associated with saltwater
intrusion from bay mud deposits bordering San Pablo Bay (Herbst, 1982) have been a concern in past
years and could once again become a concern with increasing groundwater pumpage. As such,
particular attention will be paid to physical parameters and inorganic constituents (specific
conductance, sodium, chloride, boron, bromide, and iodide) that could signal possible reemergence of
saltwater intrusion in the southern portion of the study area. Specifically, 10-20 wells will be sampled
per year for the first two years of the project. All wells will be analyzed at the USGS National Water
Quality Laboratory (NWQL) for major and minor ions; basic nutrients; trace metals; and stable isotopes
of oxygen and hydrogen. Selected wells would be analyzed for tritium/helium and/or carbon-14 age -
dating analyses. Sampling locations and analytes would be chosen based on a review of existing water -
quality data.
In addition to the basic suite of constituents proposed for sampling in the current proposal, there is a
broad range of additional water -quality sampling and analyses that could be conducted. These include
additional isotopes such as strontium, nitrogen, boron, and possibly more extensive carbon-14 and
tritium/helium analyses. The collected water -quality data will be evaluated to determine if additional
sampling is warranted. SCWA will then determine if funding is available for the sampling.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-7
3. Data Interpretation and Geohydrologic Characterization
The geohydrologic characterizations of the Petaluma Valley, based on previous USGS and DWR studies,
will be analyzed and updated based on new interpretations and data collected for this study. This will
involve reassessing the hydrostratigraphy and geometry of the water -bearing units quantifying the
distribution and quantity of recharge and discharge (including pumpage), and evaluation of
geochemical characterists of the basin. The main goals are to develop an updated representation of
the hydrostratigraphy of the basin; obtain improved estimates of the hydraulic properties of the water -
bearing deposits; quantify the groundwater budget; evaluate the dynamics of surface-
water/groundwater interaction; characterize the general geochemical characteristics and the sources
and ages of groundwater; and identify geochemical and hydrogeologic data gaps.
As part of this study, USGS researchers with CMERSC in Menlo Park, CA and Denver, CO, working
closely with project personnel from this study, will develop a geologic framework model of the major
water -bearing units in the Petaluma Valley. The overall goal of that project is to define the three-
dimensional geology through areal geologic mapping, geophysical surveys, and various topical studies
(including geochronology, sediment transport patterns, and fault histories). We will use these data
along with newly collected geochemical data to reassess the hydrostratigraphy and geometry of the
major water -bearing units of the groundwater basin. GIS coverages of major water -bearing unit
geometries will be created as part of this task. This framework model will provide the starting point for
our reassessment of the geohydrology of the area and will be the foundation used to develop the
groundwater -flow model.
The California Department of Water Resources (DWR) maintains a monitoring network of nearly 20
wells in the Petaluma Valley. Water levels in these wells are measured semi-annually. The network will
be evaluated to determine if additional wells need to be added in order to provide adequate data for
continuing hydrologic studies. Data from the networks will be analyzed to assess any long-term trends
in groundwater levels and relations between climatic variables (precipitation) and water levels.
Recharge areas will be identified using topography, geologic and soils maps, groundwater -level
records, stable isotopes, and a seepage run on the Petaluma River. Estimates of annual recharge will be
made using data from a calibrated Basin Characteristic Model (BCM) (Flint and others, 2004).
Evapotranspiration along the creeks will be estimated based on vegetation types and densities and
depth to water. As much as possible, pumpage data will be compiled from the relevant entities. When
those data are not available, especially for historical periods, pumpage will be derived from land -use
and well -location data.
There will be a particular focus on collecting information on the changing dynamics of stream/aquifer
interaction along the Petaluma River as groundwater pumpage increases. Records from the USGS
Petaluma River gage (114591500), along with seepage runs, will provide historic and current
information to define gaining and losing reaches of the stream. Specific plans for seepage runs will be
made after historic data are reviewed and field reconnaissance completed. However, in general, two
seepage runs are planned: one in the Fall and the second in the Spring.
Chemical data from this study, combined with data from other sources, will be used to identify
geographic areas and depth zones where poor quality water exists and may affect the quantity of
potable water available. In particular, the magnitude and distribution of iron, manganese, arsenic,
nitrate, and salinity will be assessed.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-8
Gaps in the geochemical and hydrogeologic data will be identified using the available data compiled in
Task 1 and the new data collected in this task. These gaps may include identifying wells where depth -
dependent water -quality data are needed or locations where multiple -piezometer monitoring sites are
needed. If available, these additional data will help refine the three-dimensional characterization of
Petaluma Valley.
All the proposed water -quality samples will likely be collected from long -screened production wells
that do not give depth -dependent water -quality data. The USGS has specialized equipment and
procedures for conducting depth -dependent water -quality sampling within production wells.
Combined with flow -meter logging, this procedure can quantify the different vertical chemical inputs
that are contributing to the overall bulk water -quality of water pumped from a production well.
In the course of evaluating existing well data — predominantly production wells with only drillers logs —
as part of the current cooperative USGS-SCWA study, it has become clear that there is a crucial need
for strategically located, deep, multiple -well monitoring sites. Without at least a few such monitoring
sites, it is not possible to thoroughly characterize a three-dimensional groundwater -flow system such
as the Petaluma Valley. Available data will be evaluated to determine the location and number of
multiple -well monitoring sites needed to better describe the complex geohydrologic conditions of the
Petaluma Valley.
4. Development and Application of Groundwater -Flow Model
Groundwater flow in the Petaluma Valley will be simulated using MODFLOW-NWT (Niswonger and
others, 2011). In general, the horizontal model domain will include the entire watershed; this will allow
the groundwater -flow model to be coupled at a later date with a watershed model. The bottom
boundary will be either bedrock or a depth where minimal water is contributed to the groundwater
system. The upper boundary will be the water table. At a minimum, the model will represent all major
water -bearing units in Petaluma Valley, including the Merced, Glen Ellen, and Recent and older
alluvium. The Petaluma Formation and Sonoma Volcanics may also be included. The results from the
lithologic and geologic modeling will be used to define the distribution of hydraulic parameters. The
results from BCM (Flint and others, 2004) will be used to estimate temporally and areally distributed
natural recharge. Pumping data and other stresses will be identified and quantified from data collected
as part of tasks 1 and 2. Both steady state and transient models will be formulated. The simulation
horizon of the transient groundwater -flow model will be determined after compiling and assessing
historic data.
The MODFLOW-NWT model will be calibrated systematically using PEST (Doherty, 2010) to water -level
and seepage data collected as part of tasks 1 and 2. It is likely that Tikhonov regularization will be used
to incorporate a priori knowledge of the groundwater system and singular value decomposition will aid
in identifying unique parameter estimates.
,A:1:1
As currently planned, one USGS Scientific Investigations Report (SIR) would be completed as part of
this study. Frequent meetings, where possible by telephone and webex, and a website will be utilized
to facilitate communication and coordination with SCWA and the city of Petaluma.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-9
PERSONNEL
The project will employ a GS -15 hydrologist, a GS -13 hydrologist, a GS -12 geochemist/geologist, a GS -
12 hydrologist, a GS -12 GIS specialist, a GS -9 GIS specialist, four GS -9 hydrologic technicians, a GS -5
hydrologic technician, and a GS -7 web designer. The years and time percentages for each employee are
presented in table 1. At least two researchers from the USGS CMERSC will also work on this project in
years 1 and 2; however, their time percentages are not known.
Federal fiscal year (October
1— September 30)
2014
2015
2016
GS -15 hydrologist
4%
10%
GS -13 hydrologist
43%
43%
29%
GS -12 geochemist/geologist
19%
19%
29%
GS -12 hydrologist
19%
25%
29%
GS -12 GIS specialist
4%
4%
GS -9 GIS specialist
15%
15%
1 10%
GS -9 hydrologic tech (QW)
6%
12%
GS -9 hydrologic tech
(seepage runs)
10%
GS -5 hydrologic tech
4%
8%
GS -7 web designer
6%
6%
Table 1: Personnel used by federal fiscal year with percentages of time for each employee.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-10
BUDGET
The costs of the project will be shared by SCWA, the city of Petaluma, and USGS. The availability of
Federal funding for this project is uncertain at this point. Additional costs would be incurred for any of
the additional study tasks included in this proposal such as installing groundwater -monitoring sites.
Possible USGS and SCWA/Petaluma funding by federal fiscal year is presented in table 2.
Federal fiscal
2014
2015
2016
total
year(October
1— September
30)
SCWA and city
$322,100
$383,100
$223,100
$928,300
of Petaluma
USGS
$85,900
$100,100
$71,300
$257,300
total
$408,000
$483,100
$294,400
$1,185,600
Table 2: SCWA and USGS federal matching funds by federal fiscal year.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-11
WORK PLAN
The work plan assumes that the project will start in federal fiscal year 2014 and does not incorporate
any of the additional study tasks such as installing groundwater -monitoring sites. The work plan for the
Petaluma Valley project is presented in table 3.
Federal Fiscal Year
2014
2015
2016
Task 1: GIS database
X
X
X
Task 2: New Data Collection
X
X
Task 3: Data interpretation and
geohydrologic characterization
(conducted collaboratively with
ongoing geologic study)
X
X
Task 4: Groundwater -flow model
X
X
X
Reports preparation and review
X
X
Table 3: Work plan by federal fiscal year and task.
REFERENCES
California Department of Finance, 2012: 2010 Census Data, Rankings of total population, percent
change, and numerical change: data available on the World Wide Web, accessed January 27,
2012 at URL
http://www.dof.ca.gov/research/demographic/state_ census_ data_ center/census 2010/view.p
hpNSF1
Cardwell, G.T., 1958, Geology and ground water in the Santa Rosa and Petaluma Valley areas Sonoma
County: U.S. Geological Survey Water -Supply Paper 1427, 273 p., accessed January 26, 2012 at
URL http://pubs.er.usgs.gov/publication/wsp1427
Dodson-Psomas Engineers, 2007, City of Petaluma 2005 Urban Water Management Plan, 215 p.
Doherty, John, 2010, PEST: Model -independent parameter estimation — Version 11.0. User manual 5.0:
Brisbane, Australia, Watermark Numerical Computing, variously p.
Flint, A.L., Flint, L.E., Hevesi, J.A., and Blainey, J.M., 2004, Fundamental concepts of recharge in the
Desert Southwest: A regional modeling perspective, in Hogan, J.F., Phillips, F.M., and Scanlon,
B.R., (eds.), Groundwater recharge in a desert environment: The southwestern United States:
American Geophysical Union, Water Science and Applications Series, v. 9, p. 159-184.
Friebel, M.F., Freeman, L.A., Smithson, J.R„ Webster, M.D., Anderson, S.W., and Pope, G.L., 2002,
Water Resources Data, California, Water Year 2001, Volume 2, Pacific slope basins from Arroyo
Grande to Oregon State line except Central Valley, Water -Data Report CA -01-02, 450 p.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-12
Herbst, C.M., 1982, Evaluation of ground water resources Sonoma County Volume 3: Petaluma Valley:
California Department of Water Resources Bulletin 118-4, 89 p.
Kulongoski, J.T., Belitz, Kenneth, and Dawson, B.1., 2006, Ground -water quality data in the North San
Francisco Bay hydrologic provinces, California, 2004: Results from the California Ground -Water
Ambient Monitoring and Assessment (GAMA) Program: U.S. Geological Survey Data Series
Report 167, 100 p.
Kulongoski, J.T., Belitz, Kenneth, Landon, M.K., and Farrar, C.D., 2010, Status and understanding of
groundwater quality in the North San Francisco Bay groundwater basins, 2004: California GAMA
Priority Basin Project: U.S. Geological Survey Scientific Investigations Report 2010-5089, 88 p.
Niswonger, R.G., Panday, S., and Ibaraki, M., 2011, MODFLOW-NWT, A Newton formulation for
MODFLOW-2005: U.S. Geological Survey Techniques and Methods 6-A37, 44 p.
Niswonger, R.G., Prudic, D.E., and Regan, R.S., 2006, Documentation of the Unsaturated -Zone Flow
(UZF1) Package for modeling unsaturated flow between the land surface and the water table
with MODFLOW-2005: U.S. Geological Survey Techniques and Methods 6-A19, 62 p.
U.S. Geological Survey, 2010, National Water Information System: Web Interface for USGS Surface -
Water Data for California: data available on the World Wide Web, accessed December 13, 2010
at URL http://waterdota. usgs. i7ovIcaIn wis/sw
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-13
Figure 1. LOeatlan of the Petaluma Valley and key geographic features in Sonoma County, California.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-14
Job Hazard Analysis For New Projects
• Check the numbered box(s) for all significant safety concerns this project should address. Significant
safety concerns are commonly those that require training, purchase of safety equipment, or specialized
preparation to address potentially hazardous conditions.
• Identify any unlisted safety concerns at bottom of the page.
• Provide details on the back of this page
Proposal Number CA 12D
Project Title (Short) Petaluma Valley Evaluation
Project Chief or Proposal Author Tracy Nishikawa
Safety Concerns
1. Wading, bridge, boat, or cableway measurements or sampling
Working on ice covered rivers or lakes
measuring or sampling during floods
Well drilling; borehole logging
5. _�J Electrical hazards in the work area
Construction
F7—.41 Working in remote areas, communication, office call in procedures
FS -A I Ergonomics, carpal tunnel syndrome
1 Field Vehicles appropriate for task?- Safety screens, equipment restraints.
10-1 All terrain vehicles, snowmobiles
FT—1.1 Helicopter or fixed wing aircraft usage
12. Site access
13.11 Hypothermia or heat stroke
14.4 Hantavirus, Lyme Disease. Histoplasmosis, Pfiesteria, Others?
15. V-1 Contaminated water with sanitary, biological, or chemical concerns
I-67 Immunizations
17. Laboratory or mobile laboratory. Chemical hygiene plan.
18. Hazardous waste disposal
19. Hazardous waste site operations
20. 11 Confined space
F2_1.1 Radioactivity
22.I Respiratory protection
F2_3.1 Scuba Diving
24. Electrofishing
25.
26. [--
�27.
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-15
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-16
For each numbered box checked on the previous page, briefly:
A. Describe the safety concern as it relates to this project.
Box
B. Describe how this safety concern will be addressed. Include training, safety
no.
equipment and other actions that will be required.
C. Estimate costs.
1
1. Wading, bridge, boat, or cableway measurements or sampling:
Personal Floatation Devices (PFDs) will be provided to all workers and must be
worn when working in, over, or near a water body. Any exceptions, which are
extremely rare, must be approved by the employee's supervisor and the CA WSC;
Safety Coordinator.
5
5. Electrical hazards in the work area:
All personnel will be informed of the DOI learn course titled, "Safety: Iclectrical
Safety Design" and encouraged to complete this course if they are not familiar
with electrical hazards. No additional costs are expected.
7
7. Working in remote areas, communication, office call in procedures:
Some parts of the study area may be remote. Center call-in procedures apply and
employees will check-in with a Center designated employee at the end of each
work day. A satellite phone (available for check out Prom the 1T Section) or
SPOT transmitter will be required in areas that do not have cell phone coverage.
No additional costs are expected.
8
8. Ergonomics, carpal tunnel syndrome
Ergonomic assessments of employee workstations are available upon request to
the safety coordinator. The CAWSC has developed an SOP for procuring
approved ergonomic equipment. Employees should contact Stephen Schmitt.
safety coordinator. for additional information.
9
9. Field vehicles appropriate for task? — safety screens, equipment restraints:
California Water Science Center field vehicles will be used to collect data for this
project. Responsibility for vehicle maintenance resides with the person primarily
responsible for upkeep of that vehicle. That person is to complete the USGS
Nlotor Vehicle Safety Inspection Cheeldist
(httn://watei'.vur.usI-'S.eov/safety/vehicle safety check.shtml) annually and send it
to Stephen Schmitt, safety coordinator, who reviews it and then sends it on to
Dawn Nahhas. the Center's Vehicle Coordinator. "Phis checklist can be accessed
from the 'Forms' section of the Center's Safety and Environmental webpage.
Vehicles shall contain appropriate Safety screens and other equipment. Field
employees will be made aware that, when using a vehicle not equipped with a
safety screen, then cargo is not to be stacked hjghcr than the rear seat (for SUVs).
Furthermore, this load should be secured with a cargo net to ensure objects do
not become projectiles in the event of an auto accident. All project employees
Will be Current with their driver safety training. The 4-11our DO] Learn training
m
Copliance module is called "NSC Defensive Driving 2" and must be completed
every 3 years. Supplemental driver safety training will be provided to employees
who ntav be driving utility trucks. No additional costs to the project are expected.
13
13. Hypothermia or heat stroke:
Ileat stress_ from exertion or hot environments. places workers at risk for
illnesses such as heat stroke, heat e.ehaustion. or heai cramps. Symptoms include
rapid pulse, heaw\ slay eating, fatigue. dig/mess. nausea, irritability, and muscle
cramps. First Aid includes stopping vcork activities. moving to coop shaded area.
removing excess clothes, applying Cool iNMCF to bodV. mCieasina fluid intake
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-16
13
I I Hypothermia or heat stroke (continued):
(Nvater or Sports drink}, seeking medical attention (if symptoms are severe or do
not improve). Prevention includes monitoring the physical condition ofyourself
and coworkers. wearing light-colored, loose-titting. breathable clothing (like
cotton, not synthetics). scheduling heavy work for Coolest parts ol'day, frequent
breaks in shaded areas, and frequent water intake. Field personnel will be
provided with First Aid n-ainingo, adequate water, Sports drinks, shade. sunscreen
(for body and lips), and shade (umbrella or canopy cover).
14
14. Hantavirus, Lyme Disease, Histoplasmosis, Pfiesteria, Others?:
Hantavirus infection is a rare but serious illness. Typical symptoms are flu-like
and include fever, headache, nausea, vomiting, muscle aches diarrhea,
abdominal pain and shortness of breath. These symptoms can occur any time
between three days to six weeks (usually occurring around 14 days) after
exposure. The usual host of this virus is the deer mouse. although other rodent
species have been shown to be infected. The virus spreads by inhalation of air
contaminated with rodent saliva, urine- and feces or if -this matter is introduced to
the body via eye rubbing or through broken skin. NEVER REMOVE
DROPPINGS BY SWEEPING OR VACUUMING. Instead. wear respirator
mast: rated N-100 (see Safety Coordinator for CAWSC Respirator SOPs) and
wear plastic or rubber gloves, ventilate area for at least 30 minutes, dampen
carcass and droppings with bleach disinfectant (100 mL bleach to 900 mL water),
damp mop contaminated area, thoroughly wash hands, face. and clothes after
cleaning.
15
15. Contaminated water with sanitary, biological, or chemical concerns:
Surface water in some areas may have low to moderate levels ofcontamination
from sewage or agricultural runoff. Although concentrations are likely to be not
so high as to pose an immediate danger to workers on-site_ USGS activities will
conform to site access :and hygiene requirements at those sites. Field personnel
will he advised of tile contamination risk and will be provided onsite with
protective equipment and supplies(e.���. impermeable gloves; splash resistant
safety glasses, clean water supply, and antibacterial soap). Field personnel will
be informed that they are entitled to no -cost Hepatitis -A. Hepatitis -B, and
Tetanus vaccinations. Appropriate dust masks will be supplied if needed.
16
16. Immunizations:
Field personnel will be informed that they are entitled to no -cost Hepatitis -A,
Hepatiiis-B. and Tetanus vaccinations.
17
17. Laboratory or mobile laboratory - Chemical hygiene plan:
Enaployces will complete Laboratory Safety and Hazardous Communications
training including, a lab walk-thnr with the Kathryn Crepeau (Placer Hall) or
Mike Land (San Diego). Alternatively, employees may take these courses using
DOI Learn. t�mployecs will read and sign the CAWSC Chemical I lygiene Plan
(contact (Kathryn Crepeau or Mike Land). Employees will be provided with
appropriate salety equipmCnt includim! splash-rCsisttmt Safety gl iSSCS. gloves.
and lab chat.
20
20. Confined space:
CAWSC SOPS for work Involving "non -permit" Confined spike me located at.
http,//cawscportal.wI 106S0P.pdf
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-17
22 22. Respiratory protection:
Respiration SON arc currently in the review process liar the CAWSC. Please
contact Stephen Schmitt. safetV 000rClinator. for details.
Discussed job hazard analysis (JHA) with District
Collateral Duty Safety Officer Yes_ No
and/or copy of JHA given to
Collateral Duty Safety Officer Yes_ No_
District Chief
Regional Program Officer
Date
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study B-18
91366 - SCWA, PcW=a
Farm 9.1356
(0a. 20051
Exhibit C
Draft Joint Funding Agreement with USGS
U.5 DEPARTMENT
OF THE INTERIOR
Customer#:
6a303o3a2g
GEDLOGICALSURVEY
Agreement 9.
Project #:
JOINT FUNDING AGREEMENT
TIN k:
94-60000539
Fixed Cost
Agreement
NO
FOR
WATER RESOURCES INVESTIGATIONS
14WSCA6W3U820
THIS AGREEMENT is entered Into as efthe,13th day of December, 2013 by the US. GEOLOGICAL SUR9EY, UNITED
STATES DEPARTMENT OF THE INTERIOR, parry of the Urn pars and the50N0MA COUNTY WATERAGENCY )SCWA),
party ofthe secandpart.
1. The parties hereto agree thatsubjca to availability ONP]m0pdaUoas and in accordance with their respealve
authorities there shall be maintained In cooperation the evaluation of the Groundwater Resources of Petaluma
Valley herein called the program. The USES legal authodry is 43 USC EEC; 43 USC 50; and 43 USC SOL
2. The following amounts shall be contributed to cover all ofthe cast of the necessary field and analytical work
dhealy, related to this program. 2(b) includes In -II Services in the amount of $0.0
(a) bythe party of the fiat part during the period
Amount Date w Date
$85,90.00 January 1, 2014 Decomber31,2014
(b) bythepanyoftheamndpandudn6thepedod
Amount Date to Date
$322,10.0 January 1, 2014 December 31, 2014
USES DUNS is 1761-38857. The amounts in both 2(a) and 2(b) arms, are for the Federal Fuel Year 2014
IFFY34) only. Total USES funding for for this agreement is $115,900,00. Tobi SCWA fundng for this
agreement is $322.103.00. Total cast of this asom meet is $408,900.00.
(c) AdetUonai or reduced amounts by each party during the above period or succeeding perfect as maybe
determined by mutual agreement and set forth In an exchange of letters between the parties,
(dl The performance period may be changed by mutual agreement and set forth In an exchange of letters
between the paries.
3. The costs of this program may be Palo by either party In conformity with the laws and Ngul,cons respectively
gmeming each party. edm
4. The geld and analytical work pertaining to this program shall be under the direction of or subject b periodic re
by an authorized nepresenbtive of the party of the first part,
S. The aeas to be included in rise program shall be determined by mutual agreement between the parties hereto or
their authorized representaGs reThe methods employed in the field and office, shall he those adopredby the party
of the first part to Insure the required standards of accuracy subject to modification by mutual agreement
6. During the course of this program, all Rod and analytical work of either parry pertaining to this program shall be
open to the inspection of the other party, and if the work Is not being carried on in a m ritually satisfactory manner,
either parry may terminate this agreement upon 60 days written notice to the other party.
Page 1 oft
htips'://wcbfotms.usgs.gov/_Inyoua Fo=SeNy .vspx7xm[Location=i91366/SCWA,46?OPetniumn., nl&... 12119/2013
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study C-1
91366 SCWA, Petaluma
' 9-1366 Kgrionuatlonl Custome14: EDOX001IN ABm.mem N: 14WSCA6o6pa2a20
7. The mlglnalrecord... uhm,from if" pmgmm will he deposited in the office admIllin of those records. Upon ruqucsf.
copies of the original mcore s will be provided to the Allies, of the other party.
a. The maps, records, or repnnsresultine from this program shall be made awllabl0 m the public as promptly as possible.The
maps, remds, m reports normally will be publbhed by the party of the first part. He--', as, any of the second part
reserves the rightto publbh the results of thla program and, Ifalre my puhlishee by the party of the Orsi part shall, upon
request, be burnished by the pony of the Ont pare, at rests, impmaslone sultahle forpmpos. AReprodmtan shortstop that
forwhlch the original copy ves prepared. The maps, records, or reports published by either padyshall mntaln a shipment of
the opepemtive relations between the parties.
9. USGS will Issue ballast utillsing Department of the Interior all far oallecton(ram 01-1040). B110ag documents ere an he
rendered Quarterly. Payments of alh are due within 60 days after the bitting dale. if Out paid by the due data, Interest will
be charged at the ourer6 Timsmy rete for each 30 day ported, or portion thereof, the, the payment 4 delayed beyond the
due dale. 131 USC 3717; Comptroller Genami ole &212222, August U. 19B3f.
Shramomres and nate
Signature: /(�%,t //(I [late: Signature: Date:
/'. 1A /a'w�s y — (d, -dD"rb
Name: Ede G. Reichard Name:
Title: Qlrenm, USGS Colif-mra Water Science Center Title:
Page 2 of 2
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Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study C-2
U.S.Gealegiral5umtry
SONOMA COUNTY WATER AGENCY
United5attes
Oepartment of the Imedpr
Usm Pulp[ Af cAnts,
Cusmmer Point Arfanmct
Name:
Irene A Rios, Budget Analyst
Name:
Mr. Maros Tmttn, Hydrogeologlut
Address,
US 6001091.1 Survey, 41655preance Road, Ste,
Address:
SonomaCounty Water Agents, 404 Aviedan Blvd,
20D. San Diego, Callrornla Mol
Saila Be., Carlow. 954m
Telephone:
639-2]5-6156
Telephone:
702-547-1930
Emil;
L';A@Atgtgow
Email:
mtmtM@scwa.org
Shramomres and nate
Signature: /(�%,t //(I [late: Signature: Date:
/'. 1A /a'w�s y — (d, -dD"rb
Name: Ede G. Reichard Name:
Title: Qlrenm, USGS Colif-mra Water Science Center Title:
Page 2 of 2
hEips:Hwcbfoms.uses.gov/_IayoutsfFomiSeNer.upx?XmILomtion=191366/SCWA,°oiS2OPemiummxmI&ainp;-.- 12119/2013
Cooperative Agreement to Provide Funding and Support Information for Petaluma Groundwater Study C-2