HomeMy WebLinkAboutLarry Walker and Associates, Inc. 2016-12-02; Amendment 1 2017-03-06CITY OF UKIAH
AMENDMENT NO. 1
TO AGREEMENT FOR PROFESSIONAL CONSULTING SERVICES
DATED DECEMBER 2, 2016
TERMS AND CONDITIONS
All terms and conditions of the Agreement for Professional Consulting Services dated
December 2, 2016 shall remain in force and effect except as modified by this first
amendment.
AUTHORIZATION
Upon execution of this amendment, service provider is authorized to provide the service
described under the Proposal Letter dated February 1, 2017.
SCOPE OF ADDITIONAL WORK
Work authorized by this amendment shall include that work described in the
Proposal Letter dated February 1, 2017
COMPENSATION
Compensation for the performance of the additional work shall be made on a time and
materials basis. Expenses shall not exceed a maximum total cost of $54,710
LARRY WALKER AND ASSOCIATES, INC. CITY OF UKIAH
BY: BY:
RUM LAUREN ON SAN COMO
Vice President City Manager
2'22%��_
DATE
Amendment No. 1 to Agreement for
Professional Consulting Services
7;, G " i -7
DATE
707 4"' Street, Suite 200 530.753.6400 www.lwa.com
Davis, CA 95616 530.753.7030 fax
L A R R Y
W A L K E R
February 1, 2017
Mr. Sean White
Director of Water and Sewer
City of Ukiah
300 Seminary Avenue ASSOCIATES
Ukiah, CA 95482
Subject: City of Ukiah Wastewater Treatment Plant NPDES Permit and Cease
and Desist Order Reissuance (February 1 to December 31, 2017)
Dear Mr. White:
The City of Ukiah (City) has requested assistance from Larry Walker Associates, Inc. (LWA)
during the 2017 reissuance of the NPDES permit and Cease and Desist Order (CDO)2 for the
Ukiah Wastewater Treatment Plant (WWTP). The new orders are expected to be adopted by the
North Coast Regional Water Quality Control Board (Regional Water Board) during the summer
of 2017. LWA prepared the NPDES permit application and understands the City's long term
plans to implement a recycled water program and eliminate discharges to the Russian River.
LWA has worked extensively with the Regional Water Board on behalf of other public agencies
and comprehends the regulatory issues that will be addressed by the new permit. In particular,
the City will need to demonstrate compliance with Basin Plan wet season discharge requirements
and develop plans to comply with final ammonia and nitrate effluent limitations. The focus of
LWA's efforts during NPDES permit reissuance will be to obtain regulatory requirements that
meet the City's future planning and operational needs, can be complied with using cost effective
measures, and provide effective and reasonable protection of the beneficial uses of the Russian
River. The scope of work, designated project staff, budget, and schedule are described in the
following paragraphs.
Scope of Work
Task 1 — Communicate with Regional Water Board Staff
Communicate with Regional Water Board staff on a regular basis during the permit reissuance
process. Clarify results provided in technical study reports, discuss operational procedures,
identify compliance issues, and negotiate permitting approaches. Conduct meetings and/or
phone, email conversations with Regional Water Board staff as needed to develop appropriate
permit and CDO conditions at the direction of City staff. As needed, attend one meeting in Santa
Rosa with City and Regional Water Board staff to discuss tentative permit provisions.
1 NPDES Permit CA0022888, Order No. R1-2012-0068
Z CDO No. R 1-2012-0069
VWVTP NPDES Permit
and CDO Reissuance Page 1 of 3 1/1/17
Task 2 — Review and Prepare Comments on Tentative Orders
Review the Tentative Order and Tentative CDO (public draft versions) to ensure proper
implementation of regulations and policies and identify W WTP operational concerns. After
initial review, consult with City staff to identify necessary changes, and prepare written
comments to explain and support the requested changes. Prepare formal written comments on
the Tentative Order and Tentative CDO to address any revisions identified by the City and lay
groundwork for an appeal if the requested revisions are not made by the Regional Water Board.
Prepare draft comment letter for City review and approval prior to submittal to the Regional
Water Board. Attend one meeting in Ukiah with City staff to discuss comments on the Tentative
Order.
Task 3 — Prepare for and Attend Permit Adoption Hearing
Negotiate changes to the Tentative Order and Tentative CDO after the end of public comment
period. Provide assistance to City staff during preparation of testimony for the permit adoption
hearing. Assist with language to either (1) express support for the permit as -is and praise
assistance from Regional Water Board staff; (2) express objection to specific and significant
provisions (possibly reaching an agreement with Regional Water Board staff and Board members
that was not possible without the pressure of a public forum); or (3) counter comments from
other public entities that may be introduced during the public hearing. Attend the permit
adoption hearing and provide technical support (as needed) for the City.
Task 4 — Proof Final Orders and Develop Compliance Plan
Review the adopted orders to identify changes or mistakes that could render the content of a
particular provision different than originally intended. Compile a list of special studies, status
reports, and monitoring requirements from the final adopted permit and CDO. Prepare schedule
and compliance plan to help the City keep track of required activities and assist with compliance
efforts during the permit and CDO term.
Task 5 - Additional Regulatory Assistance
After authorization by City staff, complete additional assignments not described in Tasks 1
through 4. Activities may include update of ammonia/nitrate pollution prevention plan, changes
to the recycled water program, assessment of watershed and groundwater studies, and assistance
during enforcement proceedings.
Task 6 - Project Management
Provide management activities to ensure tasks are completed on time and within budget. Prepare
monthly documentation of project activities and budget status. Communicate with City staff
regarding contract obligations and project expectations.
Budget and Schedule
The cost for LWA assistance will be $54,710 as detailed in Attachment 1. Project activities are
expected to begin in February or March 2017 and will conclude with permit implementation in
October or November 2017. LWA has the staff and resources available to begin work
immediately.
WWTP NPDES Permit
and CDO Reissuance Page 2 of 3 2/1/17
Project Staff
Denise Conners will lead project efforts and serve as the City's main point of contact. Denise has
extensive experience in the North Coast Region working with public agencies during reissuance
of wastewater NPDES permits, implementation of NPDES permit provisions, negotiation of
compliance activities, and development of recycled water programs. Denise will communicate
with Regional Water Board staff, review draft permits, prepare written comments, and attend
project meetings. Laura Foglia, Ph.D. will review technical reports and provide expertise on
surface water/groundwater interactions. Airy Krich-Brinton will conduct the Reasonable
Potential Analysis and calculate effluent limitations. Jenny Bayley will compile and review
water quality datasets, support technical analyses, and prepare compliance plans. Resumes for
the LWA project team members are provided in Attachment 2.
Thank you for the opportunity to provide this proposal and we look forward to working with you
on the project. Please contact me at (530) 753-6400 or deniseckiwa.com if you have any
questions or suggested changes to the scope, budget, or schedule presented herein.
Sincerely,
Denise H. Conners
Associate
Attachment 1 — Cost Estimate for NPDES Permit and CDO Reissuance (February 1 to December 31, 2017)
Attachment 2 — LWA Project Team Resumes
VVWTP NPDES Permit
and CDO Reissuance Page 3 of 3 2/1/17
ATTACHMENT
WWTP NPDES Permit and Cease and Desist Order Reissuance
Larry Walker Associates
Cost Estimate
2/1/17
City of Ukiah
Professional Services by Larry Walker Associates
Cost Estimate
WWTP NPDES Permit and Cease and Desist Order (CDO) Reissuance
February 1 to December 31. 2017
Notes. (1) LWA typically adjusts hourly rates on July 1 st of each year. The hourly rales shown are based on the 2016/11 Rate Schedule. I he Qty will be given 30 days notice of any proposed rale increase.
(2) Estimated travel and parking costs to attend meetings, site visits, or events.
(3) Estimated project costs are based on the best available information at time of production. If it appears the budget may be exceeded, LWA will notify the City (before incurring additional costs) to discuss an approach.
LWA
Labor Hours (1)
Project
Senior
Project
Project
Contract
Manager
Engineer
Engineer IIA
Engineer IA
Admin.
Denise
Laura
Airy
Jenny
Michelle
Other
Total
Task
Proposed Task
Conners
Foglia
Krich-Brinton
Bayley
Boeckx
Total
Labor
Direct
Project
No.
Cost/hour:
$245
$220
$195
$160
$145
Hours
Cost
Costs
Costs
1
Communicate with Regional Water Board Staff
Hold emails/phone calls with Regional Water Board staff
to discuss permit and CDO conditions. Attend (1) meeting
in Santa Rosa with City and Regional Water Board staff.
24
8
4
4
1 40
$9,060
$100
(2)
$9,160
2
Review and Prepare Comments on Tentative Orders
Review tentative permit and CDO to identify potential
compliance issues, inappropriate regulatory policy
applications, and mistakes. Prepare comment letters for
City review and submittal to Regional Water Board staff.
Attend (1) meeting in Ukiah with City staff.
26
16
20
1 8
70
$15,070
$150
(2)
$15.220
3
Prepare for and Attend Permit Adoption Hearin
Negotiate changes to draft orders after the end of public
comment period. Prepare for and attend Regional Water
Board Permit Adoption Hearing in Santa Rosa. As
needed, prepare City staff presentation on compliance
concerns and help City staff respond to questions posed
from Board members.
20
4
1 8
32
$7,060
$100
(2)
$7,160
4
Proof Final Orders and Develop Compliance Plan
Review final adopted permit and CDO to ensure all
changes have been incorporated properly. Develop
compliance plan and schedule for tracking submittal
dates.
8
16
24
$4,520
$4,520
5
Additional Regulatory Assistance
Contingency activities, as authorized by City staff.
Examples include update of ammonia/nitrate pollution
prevention plan, changes to the recycled water program,
assessment of watershed and groundwater studies, and
assistance during enforcement proceedings.
24
24
1 24
72
1 $15,000
$150
(2)
$15,150
6Pro'ect
Management
Prepare/review monthly spreadsheets and invoices, track
budgets and schedules.
8
12
20
$3,500
$3,500
Total Project Costs (3)
102
60
24
60
12
258
$54,210
$500
$54,710
Notes. (1) LWA typically adjusts hourly rates on July 1 st of each year. The hourly rales shown are based on the 2016/11 Rate Schedule. I he Qty will be given 30 days notice of any proposed rale increase.
(2) Estimated travel and parking costs to attend meetings, site visits, or events.
(3) Estimated project costs are based on the best available information at time of production. If it appears the budget may be exceeded, LWA will notify the City (before incurring additional costs) to discuss an approach.
ATTACHMENT
WWTP NPDES Permit and Cease and Desist Order Reissuance
Larry Walker Associates
Project Team Resumes
2/1/17
L A R R Y
WALKER Denise H. Conners
Associate
ASSOCIATES
EDUCATION
Ms. Conners is an Associate and serves as a Project Manager for LWA's work in
M.S., Civil & Environmental
the wastewater, recycled water, and regulatory assistance fields. She has
Engineering, 1991, University of
extensive experience with negotiation of NPDES and WDR permit conditions,
California, Davis
development of recycled water programs, and implementation of permit -required
B.S., Environmental Studies
special studies. She has 24 years of experience in the field and has been
(Water Chemistry), 1982, San
responsible for obtaining/reissuing wastewater NPDES and land discharge
Jose State University
permits; permitting/planning of recycled water programs; advising clients on
regulatory compliance issues; and planning/implementing technical studies to
YEARS OF EXPERIENCE
assess impacts of discharges to receiving waters.
With LWA: 20
Regulatory Assistance
With other Firms: 4
Wastewater NPDES Permit Assistance, Russian River County Sanitation
PROFESSIONAL
District, Guerneville, CA. 2009 to Present
AFFILIATIONS
Assisted the District during the 2009 and 2014 NPDES permit reissuance.
Member, California Association
Activities included negotiation of permit and CDO provisions, verification of effluent
of Sanitation Agencies
limit calculations, and preparation of formal comments on the Tentative Order.
Regulatory Work Group
(2011 to present)
Prepared workplans and special studies to establish new receiving water
monitoring locations, assess land disposal impacts on groundwater quality, derive
Member, WateReuse
a copper Water -Effect Ratio (WER), and determine feasibility of compliance with
Association (2003 to present)
ammonia and nitrate effluent limits. Supported District during negotiation of 2015
Member, California WateReuse
Administrative Civil Liability. Provide ongoing advice related to NPDES permit and
Legislative and Regulatory
CDO compliance, Basin Planning activities, and regulatory developments.
Committee (2010 to present)
Wastewater NPDES Permit Assistanc6, Occidental County Sanitation
District, Occidental, CA. 2009 to Present
Assisted the District during the 2012 NPDES permit reissuance. Activities included
negotiation of permit and CDO conditions, verification of effluent limit calculations,
and preparation of formal comments on the Tentative Order. Prepared Pollution
Prevention Plan to comply with CDO provisions. Developed workplan to assess
impacts to receiving water quality. Provide ongoing advice related to NPDES
permit compliance and regulatory developments.
Wastewater NPDES Permit Assistance, City of Healdsburg, Healdsburg, CA.
2010 to Present
Assisted the City during the 2010 and 2016 NPDES permit reissuances. Activities
included preparation of the 2015 Report of Waste Discharge, verification of
effluent limit calculations and compliance assessments, derivation of appropriate
ammonia and copper effluent limits, and preparation of formal comments on the
Tentative Orders.
Wastewater NPDES Permit Assistance, Sonoma Valley County Sanitation
District, Sonoma, CA. 2008 to Present
Assisted the District during the 2008 and 2014 NPDES permit reissuances.
Activities included negotiation of permit and CDO conditions, verification of effluent
limit calculations, development of appropriate effluent and receiving water
monitoring requirements, and preparation of formal comments on the Tentative
Orders. Conducted special studies to assess options for copper and cyanide
effluent limit compliance. Prepared chronic toxic TRE workplan and assisted the
District during TRE implementation. Participate in Nutrient Technical Workgroup
and Nutrient Stakeholder Advisory Group on behalf of the District. Supported
IPersonnel Experience & Qualificatil
L A R R Y
WALKER
ASSOCIATES
Denise H. Conners
Associate
District during negotiation of 2015 Administrative Civil Liability and settlement
agreement. Provide ongoing advice related to NPDES permit compliance and
regulatory developments.
Wastewater NPDES Permit Assistance, Town of Yountville, Yountville, CA.
2008 to Present
Assisted the Town during the 2010 and 2015 NPDES permit reissuances.
Activities included preparation of the Reports of Waste Discharge, negotiation of
dilution credits for priority pollutant effluent limits, and development of appropriate
receiving water and effluent monitoring requirements. Developed pollution
prevention program and prepare annual reports. Provide ongoing advice related to
pollution prevention, NPDES permit compliance, and regulatory developments.
Wastewater NPDES Permit Assistance, City of Calistoga, Calistoga, CA. 2005
to Present
Assisted the City during the 2006, 2010 and 2016 NPDES permit reissuances.
Activities included preparation of the Reports of Waste Discharge, negotiation of
permit and CDO conditions, verification of effluent limit calculations, and
preparation of formal comments on the Tentative Orders. Provide ongoing advice
related to NPDES permit/CDO compliance and regulatory developments.
Wastewater NPDES Permit Assistance, Mt. View Sanitary District, Martinez,
CA. 2009 to Present
Supported District during negotiation of 2009 Administrative Civil Liability.
Assisted District during 2010 and 2016 NPDES permit reissuances. Activities
included preparation of the Report of Waste Discharge, derivation of appropriate
ammonia effluent limits, implementation/approval of site-specific copper translator
study, review of effluent datasets, evaluation of permit compliance, and negotiation
of permit conditions with the Regional Water Board. Provide ongoing regulatory
compliance advice.
Wastewater NPDES Permit Assistance, Sanitary District No. 5 of Marin
County, Tiburon, CA. 2008 to Present
Assisted the District during the 2008 and 2013 NPDES permit reissuances for the
Main Wastewater Treatment Plant. Activities included preparation of the Reports
of Waste Discharge, verification of effluent limit calculations, and preparation of
formal comments on the Tentative Orders. Prepared 2015 Report of Waste
Discharge for reissuance of the Paradise Cove Wastewater Treatment Plant.
Provide ongoing advice related to NPDES permit compliance and regulatory
developments.
Wastewater NPDES Permit Assistance, Sewerage Agency of Southern Marin,
Mill Valley, CA. 2008 to Present
Assisted the Agency during the 2012 NPDES permit reissuance. Activities
included preparation of the Report of Waste Discharge, verification of effluent limit
calculations, negotiation of wet weather blending approval, and preparation of
formal comments on the Tentative Order. Assembled and managed a team of
experts in order to conduct an audit of the Agency's facilities after wastewater
spills in 2008. Prepared audit report and submitted findings to the Regional Water
Board to comply with Cleanup and Abatement Order. Provide ongoing advice
related to NPDES permit compliance and regulatory developments.
L A R R Y
WALKER
ASSOCIATES
Denise H. Conners
Associate
Wastewater Technical Studies
Russian River County Sanitation District, Guerneville, CA. 2009 to Present
Managed dye study and water quality modeling project to determine appropriate
upstream/downstream monitoring locations in the Russian River. Developed
workplan and conducted copper Water -Effect Ratio (WER) study. Final WER was
approved by the Regional Water Board and copper effluent limits (based on the
WER) were included in the District's 2014 NPDES permit. Prepare annual reports
to assess compliance with agronomic rates, evaluate groundwater quality
associated with operation of land application site.
Occidental County Sanitation District, Occidental, CA. 2009 to Present
Prepared workplan to determine appropriate monitoring locations and constituents
to assess impacts of seasonal effluent discharges on receiving water quality.
Prepare annual reports to assess compliance with agronomic rates.
City of Healdsburg, Healdsburg, CA. 2010 to 2016
Prepared workplan approach for a Basin Plan Amendment to change EC/TDS
objectives. Developed special studies to determine background/site-specific
conditions for revising ammonia and copper effluent limits. Developed strategy for
copper CDO compliance.
Delta Diablo, Antioch, CA. 2008 to 2015
Conducted Antidegradation Analysis to support approval for changed discharge
volume and quality in 2009 and 2014 NPDES permits. Managed dilution modeling
project to identify mixing zone characteristics and support a dilution credit for
ammonia effluent limits. Managed water quality modeling projects to identify and
mitigate regulatory issues associated with discharge of reverse osmosis brine to
Suisun Bay. Provided advice on current and future water quality regulations during
update to the District's wastewater treatment plant master plan. Supervised Local
Limits evaluation and proposed revisions.
Mt. View Sanitary District, Martinez, CA. 2009 to 2015
Managed site-specific copper translator study. The project included workplan
preparation, receiving water monitoring, calculation of site-specific translators, and
technical documentation to support regulatory approval. Revised copper effluent
limits based on the site-specific translators were included in 2016 NPDES permit.
City of Calistoga, Calistoga, CA. 2005 to Present
Managed dye study and dilution modeling project to support mixing zones in the
Napa River and establish dilution credits for priority pollutant effluent limits.
Advised the City during implementation special studies and compliance
assessments for disinfection byproducts and metals. Prepared strategy for CDO
compliance.
Town of Yountville, Yountville, CA. 2008 to Present
Managed dye study and dilution modeling project to support mixing zones in the
Napa River and establish dilution credits for priority pollutant effluent limits.
Assessed impacts to effluent quality prior to accepting wastewater from gas
pipeline integrity tests.
City of St. Helena, St. Helena, CA. 2010
Managed dye study and dilution modeling project to support mixing zones in the
Napa River and establish dilution credits for priority pollutant effluent limits.
L A R R Y
WALKER
ASSOCIATES
Denise H. Conners
Associate
Recycled Water
Russian River County Sanitation District, Guerneville, CA. 2009 to Present
Negotiated master water recycling requirements with the North Coast Regional
Water Quality Control Board. Prepared a Recycled Water BMP/Operations and
Management Plan and conducted the Groundwater Assimilative Capacity Analysis
to comply with 2014 permit requirements. Provide ongoing advice related to
recycled water regulations and possible impacts to groundwater and surface
waters.
City of Healdsburg, Healdsburg, CA. 2010 to 2016
Developed recycled water program that includes landscape irrigation, agricultural
irrigation, construction uses, aggregate processing, street sweeping, sewer
cleaning, and fire suppression. Prepared Notice of Intent for Statewide General
Order and received approval from DDW and the Regional Water Board in July
2016.
Sonoma Valley County Sanitation District, Sonoma, CA. 2008 to Present
Prepared CCR Title 22 Engineering Report to obtain DDW approval to produce
and deliver "disinfected tertiary recycled water." Developed recycled water
program and received approval under the San Francisco Bay Regional Water
Board's General Water Reuse Permit (Order No. 96-011). Managed tracer study to
define modal contact time for recycled water disinfection and received approval of
study results from DDW. Provide ongoing advice related to recycled water
regulations and possible impacts to groundwater and surface waters.
City of Los Angeles, Bureau of Sanitation, Regulatory Affairs Division, Los
Angeles, CA. 2015 to 2016
Managed team of technical consultants and prepared CCR Title 22 Engineering
Report for the Terminal Island Water Reclamation Plant Advanced Water
Purification Facility. The Engineering Report was submitted to DDW to support
production and delivery of "full advanced treated recycled water" for groundwater
injection at the Dominguez Gap Barrier. Helped City prepare presentation
materials for the Engineering Report public hearing. DDW approval of the
Engineering Report was received in December 2015. The Regional Water Board
adopted Water Recycling Requirements in October 2016.
Monterey Regional Water Pollution Control Agency, Monterey, CA. 2016 to
Present
Prepared presentation materials for the Pure Water Monterey Engineering Report
public hearing. Helped MRWPCA respond to public comments and finalize the
Engineering Report. Provided review of draft Water Recycling Requirements and
prepared formal comments on behalf of MRWPCA. DDW approval of the
Engineering Report was received in November 2016. Water Recycling
Requirements are scheduled for adoption by the Regional Water Board in March
2017.
City of Calistoga, Calistoga, CA. 2005 to Present
Prepared CCR Title 22 Engineering Report and obtained DDW approval to
produce and deliver "disinfected tertiary recycled water." Prepared application for
recycled water program approval under the San Francisco Bay Regional Water
Board's General Water Reuse Permit (Order No. 96-011). Provide ongoing advice
related to recycled water regulatory compliance and possible impacts to
groundwater and surface waters.
L A R R Y
W A L K E R
ASSOCIATES
Denise H. Conners
Associate
Town of Yountville, Yountville, CA. 2008 to Present
Prepared CCR Title 22 Engineering Report and obtained DDW approval to
produce and deliver "secondary 2.2 disinfected recycled water." Developed
recycled water program and received approval under the San Francisco Bay
Regional Water Board's General Water Reuse Permit (Order No. 96-011). Provide
ongoing advice related to recycled water regulatory compliance and possible
impacts to groundwater and surface waters.
Papers & Presentations
Use of Napa Sanitation District Recycled Water for Vineyard Irrigation -
Water Quality Assessment and Community Outreach
WateReuse National Symposium, Los Angeles, CA. 2006
Regulatory Incentives and Disincentives to Recycled Water Production
California WateReuse Association Annual Conference, Los Angeles, CA. 2015
Work History
Larry Walker Associates, Inc., 1992 to 1995, 2003 - Present
Nolte and Associates, Inc., 1991 to 1992
University of California, Davis, 1989 to 1990
L A R R Y
WALKER Laura Foglia, Ph.D.
Senior Engineer
ASSOCIATES
EDUCATION
Dr. Foglia is a Senior Engineer with Larry Walker Associates (LWA). At LWA, Dr.
Foglia assists with projects in the areas of hydrological modelling, groundwater
Ph.D. in Environmental
management assistance, and TMDL development. She was involved in the first Pilot
Engineering, 2006, ETH Zurich
Project promoted by the Central Valley Salinity Alternatives for Long -Term
Switzerland
Sustainability (CV -SALTS) coalition, a collaborative basin planning effort aimed at
M.S., Physics, 1999,
protecting vulnerable and essential water resources, in 2009. Since January 2016, Dr.
University of Milan, Italy
Foglia is also an Adjunct Faculty Staff in the Land, Air, and Water Resources
Department at University of California, Davis where she teaches a graduate class on
model calibration, supervises students, and works on the Scott Valley project for the
assistance of the Scott Valley community with the development of the groundwater
YEARS OF EXPERIENCE
management plan.
With LWA: 8
Scott Valley Groundwater Study, Scott Valley, CA
With UC Davis: 8
As part of the LAWR Department at UC Davis, Dr. Foglia provided research services
for the Scott Valley groundwater/surface water management project, funded by the
With Technical University
North Coast Regional Water Quality Board. The aim of the project is to assist the Scott
Darmstadt: 3
Valley community with the development of a groundwater management plan that can
lead to better streamflow conditions mainly during the summer months, preserving the
water needed for agriculture activity. Dr. Foglia assisted with the development of a new
PROFESSIONAL
GIS -based, irrigation driven, conceptual model for the analysis of the soil/water
AFFILIATIONS
balance in the Scott Valley watershed. She worked closely with the stakeholders,
AGU, American Geophysical
communities, and landowners.
Union
CV -SALTS Salt & Nutrient Sources Pilot Implementation Study, Central Valley,
EGU. European Geophysical
CA
Union
Dr. Foglia managed and performed analysis of salt loads in the Central Valley aquifers
IAHS, International Association
for the completion of a Salt and Nitrate Sources Pilot Implementation Study on behalf
of Hydrological Sciences
of the Central Valley Salinity Coalition (CVSC) to help develop a Basin Plan
Amendment (BPA) to address the issue of salt and nutrient management in California's
Secretary of International
Central Valley. The resulting methodology provided a defensible means to relate
Commission of Groundwater,
downstream impacts to upstream sources in watersheds. The objectives were to
IAHS
develop and document procedures and methodologies to quantify the significant salt
and nitrate sources in the Central Valley and to pilot test them by applying them in
three areas to validate the region -wide applicability.
Technical University Darmstadt (TUDa), Germany
During her three-year employment at Technical University Darmstadt (TUDa),
Germany, Dr. Foglia managed and developed proposals related to water resources
management and tools to assist authorities and stakeholders complying with the new
EU Water regulation. She was actively involved with MARSOL (www.marsol.eu) and
FREEWAT (www.freewat.eu).
MARSOL aims at demonstrating that Managed Aquifer Recharge (MAR) is a sound,
safe and sustainable strategy that can be applied with great confidence and therefore
offering a key approach for tackling water scarcity in Southern Europe and around the
world.
FREEWAT represents a key project in the framework of the new EU regulation and
aims at promoting water management and planning by simplifying the application of
the Water Directives. FREEWAT will be an open source and public domain GIS
integrated modelling environment for the simulation of water quantity and quality in
surface water and groundwater with an integrated water management and planning
module. FREEWAT is expected to be a modelling tool widely applied by stakeholders
in and outside of Europe. Testing in US and California case studies are in progress.
L A R R Y
W A L K E R
ASSOCIATES
Laura Foglia, Ph.D.
Senior Engineer
Relevant University Research Grants
2015 FREEWAT- H2O20 - Water 2014 one stage: 642224 grant. EU Contribution:
€1,411,078. Co -PI (PI: Dr Rudy Rossetto, SSSA, Pisa, Italy), April 2015 -Sep. 2017.
2014 North Coast Regional Board, California, grant extension for Scott Valley
management plan. Principal Investigator: Prof. Thomas Harter, UC Davis.
2013 MARSOL-Grant Agreement no:619120 FP7-ENV-2013-WATER-INNO-DEMO, PI:
Prof. Christoph Schueth, TU Darmstadt. Total Costs: €8,039,988, Dec. 2013 -Nov. 2016.
2007 Joint inversion of groundwater flow and environmental tracer data for aquifer
characterization, 2007-2009, UC Center for Water Resources, cc PI (PI: Prof. Timothy Ginn).
Journal Articles
De Filippis, G., Foglia, L., Giudici, M., Mehl, S.W., Margiotta, S., and Negri, S. (2016)
Seawater intrusion in karstic, coastal aquifers: current challenges and future scenarios
in the Taranto area (southern Italy), Science of Total Environment, in press.
Rossetto, R., Borsi, I., Foglia, L., 2015, FREEWAT: FREE and open source software
tools for WATer resource management, Rend. Online Soc. Geol. It., Vol. 35 (2015), pp.
252-255, doi: 10.3301/ROL.2015.113.
Rasa E., Foglia L., Mackay D.M., and K.M. Scow, (2013) Effect of different transport
observations on inverse modeling results: Case study of a long term tracer test at a
high resolution groundwater monitoring site, Hydrogeology Journal 21: 1539-1554, DOI
10.1007/s 10040-013-1026-8.
Foglia, L., A. McNally, and T. Harter (2013), Coupling a spatiotemporally distributed
soil water budget with stream -depletion functions to inform stakeholder -driven
management of groundwater -dependent ecosystems, Water Resour. Res., 49,
doi:1 0. 1 002/wrcr.20555.
Foglia, L., S. W. Mehl, M. C. Hill, and P. Burlando (2013), Evaluating model structure
adequacy: The case of the Maggia Valley groundwater system, southern Switzerland,
Water Resour. Res., 49, doi: 10.1029/2011 WR011779.
Work History
Larry Walker Associates, Inc., Senior Engineer. 2007 -present (not continuously)
Adjunct Professor, Land Air and Water Resources, UC Davis. Jan. 2016 - present
Technical University of Darmstadt, Germany, Assistant Professor w/o tenure track,
research group of Prof. Christoph Schueth. March 2013 -Dec. 2015
University of California, Davis, Department of Land, Air and Water Resources, Post -
Doctoral associate, Prof. Thomas Harter. Aug. 2011 -June 2013
University of California, Davis, Civil and Environmental Engineering Department, Post -
Doctoral associate, Prof. Tim Ginn. 2007-2009
USGS National Research Program, Boulder, Colorado, Visiting researcher, Dr. Mary
Hill. Oct. -Dec. 2003, Oct. -Dec. 2004, June -July 2005, May 2006, March 2007
University of Applied Sciences, Southern Switzerland (SUPSI), Institute for Earth
Sciences (IST), and ETH Zurich, Scientific collaborator & Doctoral Student. 1999-2006
L A R R Y
WALKER Airy Krich-Brinton
Project Engineer II
ASSOCIATES
EDUCATION
Ms. Krich-Brinton serves as a Project Engineer for LWA, performing specialized
M.S., Civil & Environmental
work in the water quality, regulatory and stormwater areas. Over the past 17
Engineering, 2005, University of
years, she has applied her organizational, statistical, and analytical skills to
California, Davis
provide assistance to over 50 municipalities in California. Ms. Krich-Brinton has
performed wastewater and stormwater data analyses; developed pollution
B.S., Civil Engineering, 1998,
prevention strategies, created models for performing the reasonable potential
Rensselaer Polytechnic
analysis and calculating water quality based effluent limits following the State
Institute, Troy
Implementation Plan, and prepared Reports of Waste Discharge for NPDES
permit renewal. Representative projects include the following.
B.A., Physics, 1998, Pitzer
Wastewater/Regulatory Assistance
College, Claremont
Ms. Krich-Brinton has assisted over 50 municipalities in California with their
REGISTRATIONS
NPDES and WDR permits, including renewal and comments, compliance and
special studies. She has analyzed wastewater discharge data for over 50
Passed the Fundamentals of
municipalities in California, performing reasonable potential analyses, effluent
Engineering exam. Professional
limits calculations, compliance predictions, dilution analyses, and preparing
exam is pending.
infeasibility analysis reports.
YEARS OF EXPERIENCE Permit Renewal Applications: Report of Waste Discharge (multiple clients
With LWA: 18 in CA). 2000-2016
With other Firms: 0 Ms. Krich-Brinton has assisted more than twenty clients with Reports of Waste
Discharge for NPDES permit renewal applications, including eight in the San
Francisco Bay Region and ten in the Central Valley Region. Specific clients
include the City of Modesto (2016), City of Pacifica (2016), Linda County Water
District (2016), City of Calistoga (2015), San Mateo (2012), Sewerage Agency of
Southern Marin (2012), South Bayside System Authority (2011), City of St.
Helena (2015), Sonoma Valley County Sanitation District (2013), City of
Yountville (2014), Sacramento Regional County Sanitation District (2015), City of
Davis (2012), City of Stockton (2009), City of Rio Vista (2009), and the City of
Turlock (2014). The preparation of Reports of Waste Discharge using required
California and USEPA forms includes compiling appropriate datasets for
wastewater and biosolids, calculating and formatting statistics, organizing
pretreatment program information, developing narratives and schematics of the
wastewater processes, and updating location maps. She also assists with the
preparation and attachment of additional information to support permit limit
requests or present special studies.
Review of the Reasonable Potential Analysis and Effluent Limits
Calculation (multiple clients in CA). 1999-2016
A reasonable potential analysis is used by Regional Water Quality Control
Boards to determine which constituents require permitted effluent limits. Ms.
Krich-Brinton is expert at performing the reasonable potential analysis following
the methods used by the Regional Water Boards in each Region of California,
and comparing Tentative Orders with procedures in the State Implementation
Plan and Technical Support Document using water quality objectives/criteria from
the California Toxics Rule, Basin Plans, and others, as necessary. Region -
specific information such as General Permits and site-specific objectives are
always considered. In addition, Ms. Krich-Brinton tracks and calculates the
various water quality objectives developed for ammonia in California, many of
which are dependent on pH, temperature and salinity using complex equations.
Metals criteria are often dependent upon the hardness of the water, and require
L A R R Y
W A L K E R
ASSOCIATES
Airy Krich-Brinton
translation from dissolved to the total fraction. Ms. Krich-Brinton has performed
analyses of hardness and receiving water flow or precipitation relationships to
support the use of appropriate and reasonable hardness values, and performed
translator studies to support the adoption of site specific translators for metals
objectives.
Ms. Krich-Brinton has performed reasonable potential analyses for various clients
in accordance with the Ocean Plan procedures (set forth by the State Water
Resources Control Board), including the City of Los Angeles' Hyperion Treatment
Plant (2010), the Los Angeles County Sanitation District's Joint Plant (2009), and
the Carmel Area Wastewater District (2012). The Ocean Plan form of the analysis
is completely different from that developed for inland surface waters, and requires
individual analyses of each pollutant's dataset.
Ms. Krich-Brinton calculates water quality -based effluent limits in accordance with
the State Implementation Plan procedures (both steady-state and dynamic model
where appropriate) to determine the accuracy of effluent limits presented in
NPDES permit Tentative Orders, taking into account allowable dilution,
reasonable water hardness, and ambient background conditions. She uses a
statistical method for predicting compliance with potential effluent limits, to
assess the need for infeasibility analyses to request interim limits and compliance
schedules.
She has provided wastewater regulatory services to the following clients, among
many others:
City of Burlingame
City of Burbank
City of Manteca
East Bay Municipal
City of Camarillo
City of Modesto
Utilities District
Mountain View SD
City of Thousand Oaks
City of Redding
City of Pinole
City of Simi Valley
City of Rio Vista
City of Richmond
Los Angeles CSD
City of Roseville
City of San Mateo
City of Ojai
Sacramento Regional
CSD
Sewerage Agency of
City of Los Angeles RAD
City of Stockton
Southern Marin
South Bayside System
CA Department of Water
City of Tracy
Authority
Resources
City of St. Helena
Victor Valley Wastewater
City of Turlock
Reclamation Authority
Sonoma Valley CSD
City of Davis
City of Vacaville
West County Agency
City of Fresno
City of Walnut Grove
City of Yountville
Linda County Water District
City of Yuba City
Infeasibility Analyses and In -Permit Compliance Schedule Requests
(multiple clients in CA). 2000-2015
Ms. Krich-Brinton has performed infeasibility analyses or in -permit compliance
schedule requests for over 24 municipalities that would require interim permit
limits for compliance purposes, including the Russian River County Sanitation
District (2008), Sonoma Valley County Sanitation District (2008),Camarillo
Sanitary District (2014),City of Simi Valley (2014), City of Davis (2010-2013),
Linda County Water District (2011), City of Manteca (2014), City of Modesto
(2008), Sacramento Regional County Sanitation District (2010), and the City of
Turlock (2008-2014). The infeasibility analysis includes graphical presentations of
effluent water quality data compared with proposed effluent limits, comparisons
L A R R Y
W A L K E R
ASSO-
Airy Krich-Brinton
Project Engineer
between effluent and influent water quality datasets, statistical compliance
predictions using calculated effluent statistics and proposed effluent limits, a
summary of the pretreatment and pollution prevention programs, and applicable
& appropriate source control activities with a proposed compliance schedule.
Los Osos Creek Regulatory Review, Los Osos Community Services
District, CA. 2015
Ms. Krich-Brinton prepared a prediction of the regulatory requirements associated
with discharging treated wastewater from the new Los Osos Water Recycling
Facility to the Los Osos Creek, on behalf of the Los Osos Community Services
District. Potential effluent limits were determined by a review of permits issued to
three treatment plants with similar treatment processes and receiving water
conditions within Region 3: the San Luis Obispo Water Resource Recovery
Facility, the California Men's Colony Wastewater Treatment Plant, and the City of
Lompoc Regional Wastewater Reclamation Plant. Likely monitoring requirements
were determined, and other considerations such as the Biological Integrity
Assessment Implementation Plan, Proposed Policy for Nutrients in Inland
Surface Waters, State Policy on Bacteria, and the impact of increased surface
water flow in Los Osos Creek with respect to water rights were discussed. The
permitting process requirements were provided, and all water quality standards
and objectives currently or potentially applicable to Los Osos Creek based on the
applicable beneficial uses for surface and groundwater.
Copper and Chloride Quarterly Report, City of Thousand Oaks, CA 2014-
2016
Since 2014, Ms. Krich-Brinton has prepared the quarterly progress reports
required by the City of Thousand Oaks' Time Schedule Orders for copper and
chloride on behalf of the City. She has tracked and reported on the nine tasks
required for compliance with final copper limits, and the nine separate tasks
required for compliance with final chloride limits, some of which are region -wide.
Nutrient Management Plan Reports, City of Manteca, CA. 2010-2016
Ms. Krich-Brinton has developed and prepared annual Nutrient Management
Plan reports as required by the City's NPDES permit for crop irrigation with
treated wastewater. She developed a mass and water balance which
incorporates projected nutrient and water uptake capacities for three types of
crops, individual field irrigation rates, fertilizer application rates and precipitation.
She presented graphical and tabular summaries of annual water and mass
loadings, data and field observations. As a special study, she determined the
amount of additional farmland necessary to increase the volume of irrigation by
specified amounts and remain within permitted nutrient and hydraulic limits. She
has also prepared five annual Groundwater Reports (2012-2016).
Pretreatment Program Annual Report, City of Victorville, CA. 2016
Ms. Krich-Brinton prepared the first annual Pretreatment Program report for the
City of Victorville's Industrial Wastewater Treatment Plant (IWWTP), to comply
with the new waste discharge requirements. Through the use of data and graphs,
the report showed how nitrogen exceedances at the IWWTP were the indirect
result of high salinity in industrial concentrations.
Effluent Limits Study, City of Turlock, CA. 2015
Ms. Krich-Brinton calculated the effluent limits for constituents of concern
(including ammonia, bis(2-ethylhexyl)phthalate and disinfection byproducts)
under various regulatory scenarios for the City of Turlock's Water Quality Control
Facility, for the purpose of commenting on the draft NPDES permit. The statistical
L A R R Y
W A L K E R
ASSOCIATES
Airy Krich-Brinton
Project Engineer
concentrations necessary for compliance, the dilutions necessary to result in
effluent limits above those concentrations, and trigger concentrations that use no
more than 10% of the available assimilative capacity were developed.
North Valley Regional Recycled Water Project, City of Turlock, City of
Modesto, CA. 2013-2015
Ms. Krich-Brinton assisted the Cities of Turlock and Modesto with the statistics
and regulatory requirements necessary to implement the North Valley Recycled
Water Project, under which treated effluent would be discharged to the Delta
Mendota Canal for reuse as irrigation, instead of to the San Joaquin River. She
projected future downstream concentrations based on possible dilution
scenarios, calculated likely effluent limits, and determined the potential for
compliance based on future treatment plant capabilities.
Mixing Zone Request, Sacramento County Sanitation District, CA. 2015
Ms. Krich-Brinton prepared a mixing zone request designed to satisfy the
requirements for allowing dilution in the calculation of effluent limits for
constituents showing reasonable potential. The mixing zone request included a
compliance analysis with the State Implementation Plan, a presentation of facility
performance levels, a simple analysis of antidegradation (and explanation of why
the full antidegradation analysis was not required), and an evaluation of
consistency with the antidegradation policy including anti -backsliding.
Dilution Analysis for Permit Renewal Assistance, William E. Warne Power
Plant, CA. 2015
Ms. Krich-Brinton developed a spreadsheet tool to calculate the receiving water
dilutions necessary to result in effluent limits with which the Power Plant can
comply, for presentation to the Los Angeles Regional Board during NPDES
permit renewal negotiations. The Regional Board used the resulting dilutions
when assigning effluent limits in the WEWPP's renewed NPDES permit.
Trend Analysis, Sacramento Regional County Sanitation District, CA. 2009,
2013, 2014, 2015
Ms. Krich-Brinton has provided many types of permit assistance to Regional San,
including a statistical and graphical trend analysis involving the compilation of
historical and distributed spatial Sacramento River data and a regression
analyses with time, flow and season (2009, 2013), a predictive trend analyses for
ammonia concentrations that appeared to be increased due decreasing flow in a
concentration effect (2014) and a similar analysis for salinity (2015). She has also
prepared statistical compliance predictions for metals, organics and nutrients. In
2016, she updated the trend analysis to include nutrient source loadings from
four significant POTWs which discharge within the Central Valley, showing the
predicted nutrient load decrease due to planned treatment plant upgrades
through 2030.
Antidegradation Report, Sacramento Regional County Sanitation District,
CA. 2014-2015
Ms. Krich-Brinton developed and presented graphical and statistical evidence
showing that the increase in discharge from the wastewater treatment plant
expansion would not degrade the quality of the receiving water. She performed a
mass balance analysis for multiple constituents of concern, using pilot plant data
with statistical increases for variation as necessary and appropriate dilution
scenarios. She developed a spreadsheet calculation tool to determine the
effluent concentrations that utilize less than ten percent of the available
assimilative capacity in the receiving water, at various receiving water
L A R R Y
WALKER
ASSOCIATES
Airy Krich-Brinton
Project Engineer
concentrations and flows.
Water Softener Program Summary, Morro Bay, CA. 2016
Ms. Krich-Brinton compiled outreach materials relating to the water softener
program in the City of Fillmore (Salinity Control Program), with comparisons to
the Inland Empire, Santa Paula, and LACSD.
n-Nitrosodi-methylamine Analysis, San Luis Obispo, CA. 2016
Ms. Krich-Brinton compiled concentration data and prepared detailed graphs to
assist with an analysis of analytical levels and reporting limits for NDMA.
Regulatory Issues
Stormwater and Wastewater Regulatory Issues Tracking, Sacramento
Stormwater Program and others, CA. 2012-2016
Ms. Krich-Brinton tracks and compiles the regulatory activities of the USEPA,
State Water Resources Control Board, California Regional Water Quality Control
Boards and other regulatory bodies. The tracking matrix includes regulatory
policies affecting stormwater dischargers and wastewater dischargers within
California, such as the Phase II Small MS4 General Permit, the Industrial General
Permit, the Bay Delta Conservation Plan, the Recycled Water Policy, and the
California Policy for Toxicity Assessment and Control. The matrix also tracks
policies affecting specific regions such as the San Francisco Bay Area, Los
Angeles and San Diego. Meeting dates, deadlines for comment submittals, and
links to the latest updated information are included.
Test of Significant Toxicity, City of Pacifica, CA. 2016
Ms. Krich-Brinton performed a parallel analysis of the City's chronic toxicity data
to determine whether the State Water Resources Control Board's Test of
Significant Toxicity (TST) would produce different results than a compliance
comparison with the City's NPDES permit limits.
Work History
Larry Walker Associates, Inc. 1999 -Present
L A R R Y
WALKER Jennifer Bayley, EIT
Project Engineer I
ASSOCIATES
EDUCATION
Ms. Bayley is a Project Engineer with LWA, focusing on multiple water quality
B.S., Chemical Engineering,
service areas. Ms. Bayley joined LWA after completing her undergraduate work at
2011, University of California,
UC Berkeley, in addition to an internship with LWA. Ms. Bayley has participated in
Berkeley
a number of projects, including data analysis, pollution prevention, and regulatory
compliance. Descriptions for representative projects are provided below.
REGISTRATIONS
Wastewater
Engineer -in -Training Certificate
No. 146962
City of Colfax Wastewater Treatment Plant — Colfax, CA 2013 -present
Prepared a pollution prevention plan for arsenic which included analyzing water
YEARS OF EXPERIENCE
quality data, describing potential pollutant sources, as well as clearly identifying
With LWA: 3
the City of Colfax's existing pollution prevention efforts, potential supplemental
With other Firms: 0
future activities, pollution prevention goals, and an implementation schedule.
PROFESSIONAL
Reviewed monthly monitoring data to confirm that the wastewater treatment plant
AFFILIATIONS
is in compliance with the monitoring and reporting requirements of its NPDES
Member, California Water
permit. This effort involved confirming that all required results and monitoring was
Environment Association
conducted and reported in the monthly Self -Monitoring Reports.
Furthermore, Ms. Bayley has provided assistance in preparing additional NPDES-
required submittals, including a groundwater quality assessment report, annual
reports on salinity reduction progress, and a water balance update evaluating the
facility's storage capacity.
Pollution Prevention Plan — William E. Warne Power Plant, Castaic, CA 2013
Assessed water quality data for metals and chlorinated pollutants to prepare a
pollution prevention plan (PPP). The report includes a summary of influent and
effluent quality, graphical presentations of effluent water quality data compared
with both interim and final effluent limits, a description of pollutant sources, and
discussion of potential minimization strategies and reductions. The PPP also
provides an overview of existing pollution prevention activities and supplemental
future efforts, short-term and long-term pollution prevention goals, associated
costs, and an implementation schedule.
City of Sacramento Combined Sewer System — Sacramento, CA 2014 -
present
Provides assistance in the preparation for and collection of NPDES permit -
required water quality samples at discharge locations from the combined system
as well as the receiving water, the Sacramento River. Ms. Bayley also updates the
existing Microsoft Access water quality database and supports data preparation for
event reporting and electronic submittals through the California Integrated Water
Quality System (CIWQS).
Pretreatment Local Limits Development — White Slough Water Pollution
Control Facility, Lodi, CA 2014-2015
Prepared a sampling and analysis plan for the collection of additional monitoring
data to support local limits development, which included identifying potential
pollutants of concern, compiling appropriate datasets for wastewater and biosolids
as well as calculating statistics. Subsequently, assisted in deriving technically- and
scientifically -based local limits considering the local limits monitoring results and
loading estimate evaluations.
L A R R Y
WALKER
ASSOCIATES
Jennifer Bayley, EIT
Project Engineer
Antidegradation Analysis - North Valley Regional Recycled Water Program
2015
Assisted in the preparation of a 'simple' antidegradation analysis for the Cities of
Modesto and Turlock to estimate water quality impacts associated with a request
to discharge Title 22 recycled water to the Delta Mendota Canal through
development of the North Valley Regional Recycled Water Program.
Chronic Toxicity Review - California Integrated Water Quality System 2015
Reviewed information submitted within electronic Self -Monitoring Reports
(eSMRs) through the CIWQS to prepare a comparison of chronic toxicity
monitoring results from select publicly -owned treatment works located in the
Central Valley equipped with ultraviolet disinfection and those with chlorination
disinfection facilities.
Regulatory Assistance
Permit Applications - Report of Waste Discharge 2014-2015
Assisted in preparing Reports of Waste Discharge for NPDES permit renewals for
the City of Ukiah, Town of Yountville, and the City of Calistoga as well for the
proposed new discharges from the Cities of Modesto and Turlock through
development of the North Valley Regional Recycled Water Program. The
preparation of the reports from standard California and USEPA forms includes
compiling appropriate datasets for wastewater and biosolids quality, calculating
and formatting statistics, organizing pretreatment program information, as well as
reviewing narratives and schematics of the wastewater processes.
Regulatory Options and Data Evaluation - Thermalito Power Plant, Oroville,
CA 2013
Reviewed water quality data to determine regulatory options for the discharge of
wastewater from the Thermalito power plant. Specifically, the evaluation focused
on the levels of dioxins in comparison with water quality criteria. Ms. Bayley
assisted in developing a report that provided discussions of the regulatory
framework, permit options, a characterization of the wastewater from the power
plant based on the analytical data, and descriptions of disposal options for the
wastewater.
Work History
Larry Walker Associates, Inc., June 2013 -present