HomeMy WebLinkAbout2021-02-09 - AGENDA REPORTS - NPDES PERMIT (2)0
Agenda Item: 7
P
CITY OF SANTA CLARITA AGENDA REPORT
CONSENT CALENDAR
CITY MANAGER APPROVAL:1
DATE: February 9, 2021
SUBJECT: AWARD OF CONTRACT TO PARADIGM ENVIRONMENTAL,
INC., FOR EWMP/RAA UPDATE FOR NPDES PERMIT
COMPLIANCE
DEPARTMENT: Neighborhood Services
PRESENTER: Darin Seegmiller
RECOMMENDED ACTION
City Council:
Award contract to Paradigm Environmental, Inc., for Enhanced Watershed Management
Program and Reasonable Assurance Analysis update consistent with the approved
Memorandum of Agreement for the National Pollutant Discharge Elimination System Permit
compliance between the City of Santa Clarita, Los Angeles County, and Los Angeles County
Flood Control District.
2. Increase Miscellaneous Revenues Account 356-4621.001 by $251,320 and appropriate
$398,921 from the Stormwater Fund Balance (Fund 356) to Stormwater Professional
Services Expenditure Account 14600-5161.002.
3. Authorize City Manager or designee to execute and make needed minor amendments to all
agreements related to the contract and Memorandum of Agreement.
BACKGROUND
This item is seeking City Council award of a contract for the required update of the Enhanced
Watershed Management Program and Reasonable Assurance Analysis (EWMP/RAA). Updating
these documents is a requirement of the National Pollutant Discharge Elimination System Permit
(NPDES Permit).
On October 13, 2020, the City Council approved a Memorandum of Agreement (MOA) with the
Los Angeles County Department of Public Works and the Los Angeles County Flood Control
District regarding this work. This is the first of three anticipated items to request City Council
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action to award contracts in 2021 for work that is part of that MOA.
The development and implementation of the EWMP provides compliance with the requirements
of the NPDES Permit and Total Maximum Daily Loads (TMDLs) on a watershed and regional
scale. Projects, programs, and customized strategies in the EWMP include source control
measures, integrated infiltration projects, green streets, and other best management practices.
The infiltration project at Canyon Country Community Center, green streets guidance document,
low impact development standards at construction sites, and source control have all been
implemented since 2016, to work towards meeting the regulatory milestones established in the
EWMP. An additional requirement, the RAA, is a quality check on the modeling and revisions to
assure the Regional Board and State Board that there is a high probability of water quality
improvement with the programs outlined in the EWMP.
Implementing and updating the EWMP maintains critical "deemed compliance" status for the
City of Santa Clarita (City) with the NPDES Permit. The current, state -issued NPDES Permit
took effect in 2012. "Deemed compliance" status with the NPDES Permit means even though
water quality in the Santa Clara River and in discharges from City storm drains are exceeding
allowable water quality limits, the City will not be subject to fines and enforcement by the state
and third -parry litigation allowed under the Clean Water Act.
City staff expects there to be substantial improvements to the existing EWMP with this contract.
The original EWMP was developed with limited water quality data and was a relatively new
method for stormwater compliance in California. Since then, the City and Los Angeles County
have collaborated on expanded water quality monitoring, vastly improving our understanding of
stormwater quality in the upper Santa Clara River.
The City conducted a Request for Proposal (RFP) to solicit proposals from qualified firms. The
proposals were reviewed and evaluated based on each company's ability to meet the specific
needs of the City. The RFP was advertised on the City's website on December 10, 2020. Forty-
two companies downloaded the RFP, and two proposals were received.
Written proposals were scored according to five categories:
• Contractor and subcontractor qualifications, Plan of Study/Scope of Work, Program
Management
• Experience on similar projects
• Success with regulatory agency negotiation and approval
• Work with multi agency coordination and collaboration
• Thoroughness of proposal, approach to providing sound services, and ability to provide
services to meet objectives and standards
A panel of City and Los Angeles County staff members evaluated and scored all responsive
proposals based on the selection criteria above. The results are shown below:
RANK
COMPANY
LOCATION
SCORE
Proposal 1
(Recommended)
Paradigm Environmental, Inc.
San Diego, CA
93.2
Proposal 2
Tetra Tech
San Diego, CA
89.4
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Staff recommends the contract be awarded to Paradigm Environmental, Inc. As detailed in the
scope of work, Paradigm Environmental, Inc., will collect and model all new data, revise and
update proposed projects in light of the new information, perform a new RAA, and update the
EWMP document. There will be a process for internal stakeholder review and additional
stakeholder input. Staff will submit the EWMP/RAA to the Regional Board for review by June
30, 2021. The Regional Board will likely have comments that will require changes and re -
submittal. Following Regional Board review and approval, the EWMP/RAA will also be
required to be reviewed by the State Board by June 30, 2022.
ALTERNATIVE ACTION
Other action decided by City Council.
FISCAL IMPACT
The procurement of this contract will require the appropriation of $398,921 from the Stormwater
Fund to Stormwater Professional Services Expenditure Account 14600-5161.002. This action has
no impact to the General Fund. This contract is subject to the cost sharing Memorandum of
Agreement with Los Angeles County approved by City Council in October 2020. Per the terms
of this agreement, the City will be reimbursed by Los Angeles County and the Los Angeles
County Flood Control District in the approximate amount of $251,320.
ATTACHMENTS
Paradigm Env Response to RFP (available in the City Clerk's Reading File)
Paradigm Env Cost File (available in the City Clerk's Reading File)
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II Irk `' II Fb II.I 1 I'� II- 111 11 A`A IL...
9320 Chesapeake Drive, Suite 100
San Diego, CA 92123
January 12, 2021
Danielle Marquez, Buyer
City of Santa Clara
drnarquez(a�santa-clara.com
Subject: RFP # ES-20-21-18, Paradigm Response File
Dear Ms. Marquez:
Attached is the Paradigm Environmental Inc. (Paradigm) proposal for the subject request for proposal.
This cost file is included as a separate file as requested. We have read, understand, and accept the
Terms and Conditions outlined in this RFP.
I am authorized to sign for and bind the Paradigm team to the terms of the agreement. If you have
any questions, please contact me at Bustin.bar bic¶digmh2o.com or (615) 970-2040.
Dustin Bambic, Director
Paradigm Environmental, Inc.
Update Uaaer Santa Clara River EWMP/ A: Resvonse File
1 Introduction................................................................................................................................... 2
ProjectUnderstanding.......................................................................................................................
2
AboutParadigm................................................................................................................................
3
2 References......................................................................................................................................
7
3 Plan of Study/Scope of Work........................................................................................................
11
3.1 Project Management..............................................................................................................
11
3.1.1 Coordinate Meeting Times and Participation..................................................................
11
3.1.2 Develop Work Plan Strategies........................................................................................
11
3.1.3 Provide timely answers to questions from City, County and stakeholders .........................
11
3.1.4 Develop timelines to meet compliance deadlines.............................................................
11
3.1.5 Coordinate with regulatory agencies for issues of concern ................................................
12
3.1.6 Track budget and invoicing............................................................................................
12
3.2 Develop Work Plan...............................................................................................................
12
3.3 EWMP Update......................................................................................................................
12
3.3.1 Data Review/WBPC.....................................................................................................
13
3.3.2 WMMS/SUSTAIN/LSPC............................................................................................13
3.3.3 Existing and New BMP Assessment and Stakeholder Process ..........................................
13
3.3.4 Reasonable Assurance Analysis......................................................................................
14
3.3.5 Cost Estimate................................................................................................................
16
3.3.6 Milestone Schedule........................................................................................................
16
3.3.7 Draft Document, Public Process, and Final Document (including Data and Reports) .......
16
4 Schedule.......................................................................................................................................18
5 Program Management...................................................................................................................
19
Communication..........................................................................................................................
19
Staff Planning, Budget, and Schedule Tracking.............................................................................
19
SubconsultantCoordination.........................................................................................................
21
Quality Assurance (QA) and Quality Control (QC) Procedures.....................................................
21
6 Personnel, Equipment, and Facilities.............................................................................................
23
Paradigm Environmental Resumes..................................................................................................
24
Larry Walker Associates Resumes...................................................................................................
27
CraftwaterEngineering Resumes.....................................................................................................
29
7 Sub-Consultants............................................................................................................................32
LarryWalker Associates..................................................................................................................
32
CraftwaterEngineering....................................................................................................................
34
Paradigm Environmental i
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
IN III III:: III„ III 101IN
Paradigm Environmental Inc. (Paradigm) is pleased to submit our proposal
aM for updates to the Upper Santa Clara River (USCR) Enhanced Watershed
PA RAD 11 G M Management Plan (EWMP) and Reasonable Assurance Analysis (RAA). Our
team of experienced modelers, engineers, and regulatory specialists have an
extensive resume of relevant project experience that will enable us to leverage past and ongoing research
and planning approaches to support the City of Santa Clarita, Los Angeles County, and Los Angeles
County Flood Control District (hereafter referred to as "EWMP group") with updates to the
EWMP/RAA. We recognize that any approach must consider the specific preferences and priorities of
the EWMP group and the unique conditions of Santa Clara River watershed while demonstrating
reasonable assurance to the Regional Water Quality Control Board (RWQCB) regarding compliance
with the MS4 Permit and Total Maximum Daily Loads (TMDLs). Paradigm has partnered with Larry
Walker Associates (LWA) and Craftwater Engineering (Craftwater) for this project, resulting in a team
of key individuals that led original development of the EWMP and RAA, are uniquely familiar with the
USCR watershed, RAA models, and regulatory issues; our team can "hit the ground running" and cost -
efficiently update the EWMP/RAA. Our team is fully dedicated to supporting updates to the
EWMP/RAA that meet the needs of the EWMP group and lead to cost-conscious decisions for
stormwater best management practice (BMP) implementation. The following provides a summary of our
team's understanding of the overall work and deadlines required, and an overview of Paradigm's
qualifications that will be key to ensuring that the work and schedule will be successfully achieved.
Section 7 provides additional information on the qualifications of LWA and Craftwater.
I11:::"rqjeat Understaindilling
We understand that updates to the EWMP/RAA must be efficient and effective in order to meet the
deadline for submittal to the RWQCB in June 2021. Our goal is to provide this efficiency while
incorporating the experience and expertise needed to: improve the understanding of pollutant sources
and transport; provide meaningful input and interpretation of the latest science and emerging policies;
address beneficial use impairments and applicable receiving water limitations (RWLs), water quality
objectives (WQOs), and water quality based effluent limitations (WQBELs); and support cost-conscious
approaches for stormwater management to address these objectives. Most importantly, we will support
the EWMP group in performing updates to the EWMP/RAA that are ilnpactful in terms of reduced cost
and BMP capacity using updated tools and techniques for BMP modeling and TMDL interpretation. At
the same time, we can provide guidance to the EWMP group, RWQCB, and EPA regarding needed
updates to the MS4 Permit during
its adoption process to more 450, ,. Additional Capacity rnetals� °,S`twctu.Vra l BMP Cd,ip.Noty foN iniiten° iin and
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pollutants in stormwater and dry
weather runoff. To accomplish
these goals, we will leverage our
experience supporting similar
planning efforts, studies, and
modeling projects throughout the
Los Angeles Region and
California. Our proven ability to
utilize model advancements,
regulatory compliance
approaches, and precedents set in
watersheds throughout the region
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Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
allows us to take advantage of the many lessons learned, prevent "recreating the wheel," and ensure that
technical approaches represent the state -of -the -practice and meaningfully address or impact regulatory
requirements. The following are examples or our team's experience that will be essential to ensuring
successful and meaningful updates to the EWMP/RAA to meet the schedule:
® I[;;;;, llp inei m developing the original USCR EWMP/RAA, resulting in a working knowledge of
previous strategic planning and technical approaches that are foundational to understanding the
opportunities and considerations for updates. We have "brought the band back together" for the
USCR group including Dustin Bambic, Ashli Desai, Chad Helmle, and Brad Wardinski — no other
team can match our familiarity with the unique conditions of the Santa Clara River and the City and
County stormwater programs.
® 11:..:..:Xpeiirdse developing Los Angeles County's Watershed Management Modeling System (WMMS
2.0), including modeling approaches and tools that are tailored for updating RAAs. This expertise
will be critical to ensuring cost-efficient model applications that harness the latest understanding of
water quality and BMP modeling and methods to demonstrate reasonable assurance. Our new
techniques have much promise for reducing BMP cost and capacity in the EWMP.
® lintlimate knowledge of applicable TMDLs, RWLs, and WQBELs based on our team's support
to the EWMP group and MS4 Permittees throughout Los Angeles County in negotiations with the
RWQCB on these requirements, and scientific research that results in the latest understanding of
water quality impairments and applicable numeric targets that protect beneficial uses of waterbodies.
No consultant can match the RWQCB relationships we have, especially Ashli Desai who regularly
coordinates with the highest level of RWQCB staff.
® 11:::::11Ue1ncy with the RWQCB's Guidelines for Conducting RAAs, gained through our support to
Permittees in the negotiation of these requirements. We are ready to re -interpret key elements of these
guidelines and are optimistic we can gain strong support from the RWQCB while doing so.
v III irus anid lr llp 'UI with the RWQCB, State Water Resources Control Board (SWRCB), and
U.S. Environmental Protection Agency (EPA) to present and defend RAA results. With our team
you will have the most trusted RAA and EWMP consulting team in southern California.
Paradigm is a CA -certified small business formed in 2014 by a group of highly experienced and respected
professionals that have dedicated their careers to developing innovative approaches and tools to support
stormwater management and the planning and implementation of projects to provide a more sustainable
future for watersheds. The core service line for Paradigm is stormwater management, which includes
strategic planning, modeling, data management and analysis, and regulatory support. With Paradigm's
knowledge and understanding of the Clean Water Act and associated stormwater permits, control plans,
and TMDLs, we help agencies respond to increasing pressures to improve water quality and reduce
impacts from stormwater. Paradigm's experts have supported some of the largest stormwater programs
in the U.S., and have a successful track record in leveraging regulatory and technical expertise to develop
water quality improvement strategies that are cost-effective, reflective of water quality standards, and
responsive to permit requirements. Our team is uniquely experienced with strategic planning efforts
throughout the Los Angeles Region, particularly in the areas of modeling, TMDL development and
implementation, BMP planning and cost -optimization, and RAAs supporting EWMPs. Our team of
engineers, modelers, and water quality and regulatory specialists will capitalize on years of experience
and highly relevant past and ongoing research to provide the EWMP group state -of -the -practice and
regulator -approved approaches for updating the EWMP and modeling stormwater quantity and quality
and BMP performance.
Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
The following are relevant examples of Paradigm's past and current experience within the Los Angeles
Region and throughout California and the U.S. This experience includes the preparation of guidance on
model selection and application, development of regulator -approved model software, and the application
of models to support the development of TMDLs and RAAs:
Development/Updates ofEWMPs and RAAs
Original Los Angeles Region EWMPs and RAAs (2013-2016) — Paradigm pioneered approaches
for preparing the original WMPs/EWMPs and RAAs for ten of the largest and most complex
watersheds in the region, including USCR, Malibu Creek, Lower Los Angeles River, Upper Los
Angeles River, Ballona Creek, Los Cerritos Channel, Upper San Gabriel River, Lower San Gabriel
River, East San Gabriel River, and Dominguez Channel. Paradigm also supported negotiations with
RWQCB staff, and provided presentations to the RWQCB, SWRCB, stakeholders, the public, and
elected officials to garner support of the approaches. All WMPs/EWMPs/RAAs were approved by
the RWQCB and EPA. Critical to this success was the development of strategies and technical
approaches that were consistent across the Los Angeles Region, providing efficiency in engaging the
regulators and stakeholders to garner support and receive buy -in.
Updates to Los Angeles Region EWMPs and RAAs (2019-present) — Paradigm is currently
supporting updates to multiple EWMPs/RAAs in the region to improve planning strategies, utilize
the newly released WMMS 2.0 to model hydrology, water quality, and BMP performance, reevaluate
critical conditions and other considerations for attainment of applicable RWLs and WQBELs, and
perform cost -optimization of the BMPs to meet water quality goals and define the EWMP
implementation strategies. Paradigm (working with team members LWA and Craftwater) are
performing these updates for Upper Los Angeles River, Lower Los Angeles River, Malibu Creek,
Ballona Creek, Marina del Rey, Upper San Gabriel River, Lower San Gabriel River, Los Cerritos
Channel, and Dominguez Channel EWMP groups. Paradigm recently completed calibration of
WMMS 2.0 for these watersheds, meeting the RWQCB's Guidelines for Conducting RAA, and
including new approaches for reporting model performance and demonstrating reasonable assurance
to the regulators and stakeholders that the model accurately represents hydrology and pollutant
loading conditions. These efforts build upon the preliminary regional calibration performed for
WMMS 2.0 development, and result in a set of modeling parameters that will be translatable to the
USCR watershed to enable efficient initiation of further calibration efforts needed for the USCR RAA.
Our team has also developed new techniques and approaches for evaluating critical conditions
associated with numerous pollutants of concern that are consistent with those considered for the
USCR EWMP (e.g., bacteria), and serve as the foundation for setting goals for BMP implementation.
For all efforts updating EWMPs/RAAs in the region, the Paradigm team is preparing strategies for
addressing recommendations of the SWRCB Order
(A-2386, A-2477, A-2508), particularly regarding
methods to address the limiting pollutant analyses and
approaches for demonstrating attainment of
WQBELs and RWLs for various pollutants. It will be
important for the USCR EWMP/RAA to be based on
similar strategic approaches used in other
EWMPs/RAAs throughout the region in order to (1)
ensure the RAA represents the state of the practice,
and (2) continue opportunities to "circle the wagons"
and build consensus and buy -in from regulators and
stakeholders, especially if re -interpretation of the
RWLs, WQBELs, or critical conditions utilized by the
EWMP/RAA differ from original efforts or result in
less BMPs to be implemented.
Ballona Creek
++
++
Santa Monica Bay J2/3
++
++
Malibu Creek
++
++
Lower LA River
++
++
Upper LA River
++
++
Los Cerritos Channel
++
++
Los Cerritos Channel/Alamitos Bay
++
++
Lower San Gabriel River
++
++
East San Gabriel River
+
+
Rio Hondo/ San Gabriel River
Upper San Gabriel River
++
++
Upper Santa Clara River
+
+
Dominguez Channel
++
++
Port of Long Beach
+
+
+=2016 E/WMPs, RAAs, and CIMPs
++=Also leading EWMP/RAA 2021 updates
Paradigm Environmental 4
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
Development ofRegulator-Approved Model Software
Los Angeles County Watershed Management Modeling System (WMMS) (2008-2011) - Principals
of Paradigm led development of the Los Angeles County Flood Control District's (LACFCD)
WMMS, a system of models (LSPC and SUSTAIN) specifically designed and released as a public
domain model to support stormwater and BMP planning and RAAs in Los Angeles County (see
LINK).
Los Angeles County WMMS 2.0 (2018-present) — Paradigm recently supported the LACFCD in
updating WMMS to prepare for future refinements of RAAs that meet emerging requirements of the
MS4 Permit. The modeling system includes significant updates to LSPC and SUSTAIN for improved
accuracy and BMP simulation capabilities, and tools to support model setup and visualization of
RAA results. As part of this update, Paradigm performed a preliminary calibration of the USCR and
all other watersheds in the region utilizing the most recent hydrologic and water quality data. This
preliminary calibration for USCR will serve as the starting point for the RAA, and additional
adjustments of modeling parameters to meet performance goals required by the RWQCB's
Guidelines for Conducting RAAs.
Loading Simulation Program C++ (LSPC) (2003-2013) — Paradigm's John Riverson and Khalid
AM served as the technical leads for development of EPA's LSPC, a re -coded version of the
Hydrologic Simulation Program — FORTRAN into a streamlined C++ programming platform to
overcome many of the architectural challenges associated with configuring BASINS and HSPF for
large, complex watersheds. LSPC was incorporated within EPA's TMDL Modeling Toolbox (see
LINK). The latest version of LSPC is maintained by Paradigm and includes numerous enhancements
and improvements, including migration to an open source framework (see LINK).
System for Urban Stormwater Treatment and Analysis Integration (SUSTAIN) (2007-2013) —
Paradigm's John Riverson and Khalid Alvi served as the technical leads for development of EPA's
SUSTAIN model, a tool specifically designed to support modeling and cost -optimization of BMPs to
guide municipal planning efforts.
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Preparation of Model Guidance
Handbook for Developing Watershed Plans to Restore and Protect Our Waters (Handbook) (2008)
— Principals of Paradigm supported development of the Handbook and training sessions, which
Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
included guidance on the selection and application of models to support watershed planning efforts
(see LINK).
Guidelines for Conducting Reasonable Assurance Analysis in a Watershed Management Program
(2012) — Principals of Paradigm supported Permittees in negotiations with the RWQCB regarding
key assumptions and criteria included within the guidelines for RAAs performed in the LA Region.
EPA's Developing Reasonable Assurance: A Guide to Performing Model -Based Analysis to Support
Municipal Stormwater Program Planning (2015-2017) — Paradigm supported EPA in the development
of this guide for California municipalities on how to select modeling approaches and perform RAAs.
The guidance evaluates methods used in the Los Angeles, San Diego, Central Coast regions, and
throughout the U.S. (see LINK).
Draft Final Report: Quantitative Methods that Support Reasonable Assurance Analysis for
California's Alternative Compliance Framework (2018) — Paradigm staff served as technical
experts supporting workshops and discussions that informed the SWRCB in the development of this
guidance document (see LINK) to provide:
o Improved confidence in the application of models to support MS4 Permit compliance.
o Guidance for alternative compliance strategies.
o A better understanding of model data inputs and outputs, assumptions, and uncertainties.
o Insights for using modeling throughout various stages of compliance planning.
Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
The following provides a summary of the Paradigm team's relevant experience on similar projects. We
provide extensive project experience for LWA and Craftwater in Section 7. Please note that our team has
partnered on multiple projects to provide seamless expertise to the City and County.
Upper Sainta Clara III:Riii it II[;;; III:::' aind III°1
G.-Yient contact: City of Santa Clarita
The Paradigm team (Paradigm, LWA, and principals of Craftwater) supported the EWMP group in the
development of the first EWMP and RAA for the USCR. This first EWMP/RAA served as a critical
opportunity for the EWMP group to demonstrate to the RWQCB, NGOs, and stakeholders how the
EWMP, serving as a strategic compliance pathway allowed by the MS4 Permit, provides a
comprehensive and technically defensible plan for the implementation of stormwater control measures
that result in attainment of applicable RWLs
and WQBELs. The Paradigm team provided Wentify Coinitral
key expertise in the interpretation of TMDL, Represent Measures t u" a err fif
Basin Plan, and MS4 Permit requirements that Baseline E.cofland nion- Control
sought to identify key water quality priorities c1l Metak Water Measures
and critical conditions (i.e., dry weather flows, Condifionsu a ty Prrl'odties for Metals
storm flows) during which they apply. These ..
priorities and critical conditions served as the
basis for determining the type and amount of
a r
control measures needed to improve water
quality of the USCR. Our team utilized WMMS
to perform modeling of watershed hydrology'
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and water quality, and the performance of �Illlllllll�lllllllllllllllllllllllfuiii
identified BMP opportunities that result in
attainment of the water quality priorities.
Paradigm and LWA supported the EWMP
group in meetings and presentations to the " " ""'
RWQCB to obtain buy -in on the strategic "d"�"`''""' 'fill
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approaches presented in the EWMP and results �''�.wonnarR
of RAA. The groundbreaking EWMP/RAA
was ultimately approved by the RWQCB in 2016. 111 If;;llllf fir quulliily Iiriioiriilii ir�iriiliill�ir�iilii�ir�
Watershed Management Modelling Systern Updates (WIMMS 2 0)
(.,Bent contact. Los Angeles County Flood Control District
WMMS was originally developed by Paradigm staff in 2009 to support watershed planning and
management for all of Los Angeles County. Through linkages of the watershed and pollutant loading
model (LSPC), and the BMP performance model (SUSTAIN), WMMS has supported numerous
applications across the region, including multiple RAAs and BMP concept designs. Paradigm supported
the LACFCD in the update of WMMS 2.0 to provide a next -generation version of the modeling system.
WMMS 2.0 includes updates of the LSPC model to provide greater efficiency and accuracy for predicting
watershed hydrology and water quality. The BMP modeling and optimization framework utilizing
SUSTAIN was updated to include an expanded menu of BMP types for modeling, updated BMP
performance and cost assumptions to better represent the state -of -the -practice for estimating BMP
Paradigm Environmental
Update U der Santa Clara River EWMP/RAA- A: Response File
performance and cost, an updated optimization approach, linkages to it
WRAMPS (see below project description) for incorporation of existing
BMPs, and utilities to visualize and extract cost -optimal BMP
implementation plans to meet numeric targets established by EWMPs.
WMMS 2.0 was released in June 2020, and represents a major leap in
model enhancements and processes that may result in a steep learning lrw�rrauaxam��""�
curve for many firms that have led RAAs in the past, even the most
experienced modelers. Given our experience developing WMMS 2.0
S` and the linkages with other countywide tools (i.e., WRAMPS
Clean Water Projects Module — see below project descriptions), we can
ensure that the EWMP group takes full advantage of the new
functionalities provided by WMMS 2.0, the RAA is cost-efficient, and that the RAA will provide
consistency with project performance estimates used for annual reporting (WRAMPS) and applications
for Measure W funding (Safe Clean Water Project Module).
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G.-Yient. City of Los Angeles Bureau of Sanitation, Watershed Protection Division
The City of Los Angeles led development of EWMPs for Upper Los Angeles River, Ballona Creek, and
Dominguez Channel, which included cooperation with Los Angeles County and multiple cities.
Paradigm led the RAAs for all three EWMPs, which included the tailoring of WMMS for simulation of
pollutant loads and modeling and optimization of BMPs to water quality priorities. Key to the EWMPs
was the interpretation of multiple TMDL wasteload allocations included in the MS4 Permit for
establishing interim and final numeric targets and associated schedule milestones. Paradigm provided
this interpretation to recommend overall strategies for demonstrating compliance with TMDLs for metals,
bacteria, and toxic pollutants. Paradigm also supported the City in negotiations with the RWQCB during
their development of guidelines that set the requirements for RAAs, including assumptions for critical
conditions for model simulation, BMP modeling assumptions, and criteria for model calibration.
Recommendations by Paradigm were incorporated into the guidelines, which resulted in significant cost -
savings for the cities in terms of BMPs needed for compliance. Paradigm and Craftwater are currently
working together to update all three EWMPs/RAAs for submittal to the RWQCB in June 2021.
Upper Sain Gallbirliell III°1iii iir III;;;;;', III°:1/III°
G._Yient. Los Angles County Flood Control District
The LACFCD partnered with multiple cities to lead an EWMP for the Upper San Gabriel River (USGR)
to address requirements of the MS4 Permit. Paradigm led the RAA to demonstrate that proposed BMPs
will result in attainment of interim and final goals consistent with TMDLs. Based on Paradigm staffs
experience developing WMMS for the LACFCD, WMMS was modified to address specific requirements
of the RAA for evaluation of individual jurisdictional loads, critical periods for loading assessments, and
assessment of design storms.
Paradigm is presently leading updates to the RAA for submittal to the RWQCB in June 2021. Utilizing
Paradigm's experience developing WMMS 2.0, the model was recalibrated based on recent hydrologic
and water quality data collected within the watershed. Paradigm is also performing a re-evaluation of the
critical condition to base the load reduction estimates of the RAA, requiring various model simulations
and comparison to applicable WQBELs and RWLs.
Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
II[;;;I,III° Ilf;;) lllol iiiii III°�� of ll ll iir inev: iii � III°:1 i oiirmiiiii III °°°°II[
Analysis to Support n iiiciiill 111 Stairmwateir III°:1iir iir iirn III°:Illl inn iiiin
G._Yient. EPA Region 9
Based on Paradigm staffs experience and expertise developing RAAs for watersheds in all regions of
California, Paradigm was asked by EPA (in collaboration with the Los Angeles RWQCB) to serve as the
lead author of a guidance document (see LINK I.on modeling for EWMPs/RAAs to address requirements
of MS4 Permits. The goal of the guidance document is to provide a resource to regulators and
communities in the selection and use of models to support RAAs, and includes:
® A summary of the history of model development.
® A description of the RAA and its role in watershed planning.
® A summary of example case studies within California and throughout the U.S.
® An overview of typical public domain hydrologic and water quality models used to support RAAs
and a guide on selection of the best approach to address watershed characteristics and planning needs.
® Step-by-step instructions on how to perform modeling to support RAAs, including considerations for
model configuration, a summary of typical calibration and model performance criteria, and methods
for documenting aspects of model development and application.
III,,,,,,,os AingellesCounty f Ill n Water I11:°1iir Jec Module
G._Yient. Los Angeles County Flood Control District
The Regional Program under the Safe Clean Water Program will annually fund nearly $150M in projects
across Los Angeles County. Each year, the LACFCD will issue a Call for Projects to accept applications
for projects proposed for funding. Paradigm has developed the `Regional Program Projects Module' for
the LACFCD, a web -based application that is used for all project application submittals. The Projects
Module includes automated scoring calculations to support users with applying the Scoring Criteria,
which include metrics for water quality, water supply, and community benefits. One of the goals of the
Projects Module is to simplify the scoring process for applicants with regards to the more complex
calculations in the Scoring Criteria around pollutant reduction and annual average water capture. The
Projects Module includes a server -hosted version of WMMS that automates the BMP simulations. The
server -hosted version of WMMS is able to simulate 10- and 20-year periods using an hourly time step,
based on the project details provided by the user (capacity, drainage area, etc.).
Watershed Rellpairtiling AdaptiveMainagaiment & fll l aniniiiunurn (W RAMPS)
fll S)
G._Yient. Los Angeles County Department of Public Works
To support the municipalities in Los Angeles County with EWMP implementation and NPDES
compliance and reporting, LACDPW engaged Paradigm to create a web -based system for use by all 86
MS4 Permittees in the county. Paradigm developed WRAMPS with a Projects Module that tracks
stormwater projects that have been built in each jurisdiction. As municipalities transition from the
development of EWMPs to
implementation and adaptive St.r.mmteiI VoliurneIManaged suirinirinalry
management, WRAMPS supports P,o;��a s �e , -j"t, T-1
annual reporting
b jurisdiction and ° 96
C"pwatershed, with additional fn "y" °'° ° °°° "`
f
functionalityto support project
PP P j
planning. Customized pages allow �o
TI'G—IJ .o� 221-0D° 11G,D° 6L° 1°8i H
users to enter information for LID
projects, green streets, and regional
rninnnraea sa.e.°o oo- nn° znIF, .o°
Paradigm Environmental
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
facilities. For each project entered, the system quantifies the potential stormwater capture for an array of
conditions and durations: average year, wet year, 85th percentile event, critical storms identified in RAAs,
etc. The stormwater volume captured and treated are estimated using SUSTAIN, a component of
WMMS. A dashboard displays the cumulative performance of all the projects in each jurisdiction,
organized by project type and watershed.
Ill,,,,,,, weir III,,,,,,,A 111::111ver, (Loy Ceirriltos C11 anin lll, aind Ill,,,,,,, weir Sain biiriiell III°Riii iir III°R „
G.-Yient: Gateway Cities (via John L. Hunter & Associates and Richard Watson & Associates)
Paradigm led the RAAs supporting the Lower Los Angeles River, Los Cerritos Channel, and Lower San
Gabriel River WMPs. The RAAs consisted of a comprehensive modeling approach to simulate watershed
pollutant loads and demonstrate the ability of BMPs to result in load reductions to meet scheduled
milestones set by TMDLs and the MS4 Permit. The RAAs incorporated various considerations for
assessment of compliance with bacteria, metals, and toxicity TMDLs, and required interpretation of both
the TMDLs and the MS4 Permit to set meaningful targets. For instance, bacteria included the
incorporation of reference conditions (in terms of allowable exceedance days) and high flow suspension
(HFS) of beneficial uses, eliminating the need to reduce bacteria loads when such conditions apply.
WMMS was used to determine load reductions for each watershed and identification of the critical
pollutant to control with BMPs (controlling the critical pollutant will result in sufficient load reductions
for remaining pollutants). The modeling framework provided optimization of BMP scenarios, allowing
the automated assessment of thousands of combinations of BMP types, sizes, and locations, to ultimately
identify the most cost-effective BMP implementation plan to meet TMDL load reduction milestones. The
RAA also considered reductions associated with nonstructural BMPs and the reduction of copper due to
its discontinued use in brake pads.
III,,,,,,,os AingellesCounty it in Stireet I it Ilf„'Ill in
G.-Yient: Los Angeles County Department of Public Works (LACDPV)
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114111,,,,,,,,AN 0111:::::°-III 111„ 114::111: III° III::1
Our approach to Project Management will lead to high quality deliverables on schedule and within
budget. We have developed approaches to efficient, frequent feedback on key decisions to be made over
the course of EWMP development. The following provides an overview of key steps in our approach to
managing the project. Additional discussion of the Paradigm project management approach is provided
in Section 5.
0.1. I Coordinate Meadirn ,,,I iines and 11f:`Oairticilpatioin
Our Project Manager will coordinate and facilitate meetings; our approach includes three primary types
of meetings. First, at the onset of the project, we will establish a schedule for frequent recurring meetings
with the EWMP group, and we have assumed bi-weekly web calls between March and June. Second, we
will coordinate to establish an early preliminary schedule for meetings with RWQCB/key stakeholders
— we assume two (2) meetings before EWMP submittal to discuss proposed methods and receive early
feedback and one (1) meeting after EWMP submittal to discuss comments submitted on the draft revised
EWMP. Our team has long-standing relationships with RWQCB staff, which will be leveraged to ensure
that the appropriate RWQCB staff make themselves available when requested. Third, we have also
included one public webinar to present the draft revised EWMP to the public. We have access to a variety
of webinar platforms including Zoom Pro and Microsoft Teams, and have successfully led webinars with
over 100 participants. Perhaps most importantly, we are experienced with navigating meetings with the
RWQCB and public to facilitate acceptance of proposed approaches while also fleshing out early
feedback that can be proactively addressed to increase acceptance of submitted regulatory documents.
0.1.2 IDevellop Work I1f311irn Strategies
Under this task, we will outline our overall strategy and timeline for developing the RAA and EWMP
update, including key milestones when decisions/review are needed and when key meetings will be held
to engage the RWQCB and stakeholders. A key component of this early outline will be to garner early
and frequent feedback from the EWMP group on key elements — which is a major challenge of this project
given the short time schedule to deliver by June 2021. The proposed approach to the Work Plan leverages
slide decks rather than lengthy memos, as presented below under `Develop Work Plan.'
0.1.3 li::)irovide tuirrm ll .ur-n w it -tin questions fr irrm City, Couinty and stakeholideirs
We understand that EWMP development is a complex process influenced by input from a variety of
participants (City and County staff, management, stakeholders, RWQCB, etc.). We will have two
primary mechanisms to facilitate timely and complete answers from the EWMP group and stakeholders:
through comments on the slide deck -based Work Plan and following meetings. Our team will essentially
be on standby through June 30 to address questions that arise and have allocated a budget to do so. In
the USCR watershed, we know this engagement is especially important because the conditions and
impairments are unique and diverse compared to other watershed areas in LA County.
3. Q .4. IDevellop tuim lliin -to nn i ipllii ndead1lines
The Paradigm team has developed more E/WMPs, including RAAs, than any other collection of firms.
We understand the need to comply with strict deadlines established by the Permit. During the original
E/WMP development, the Paradigm team met all deadlines, submitted all products within regulatory
compliance deadlines, and all of our products were approved. The Paradigm team has never missed a
regulatory deadline. We have a proven project management approach, highlighted in Section 5, for
scheduling, staffing, and tracking our projects. For this project, we will quickly establish a schedule to
meet the June 2021 deadline while providing opportunity for meaningful feedback and input from the
City and County.
Paradigm Environmental 11
Update Uaaer Santa Clara River EWMP/A: Resvonse File
0.1.5 Coordinate with regullatoiry agencies-f it Tissues of coinceirn
As indicated above, we will plan on coordination with RWQCB staff before and after submittal of the
revised EWMP. Our team has key relationships with RWQCB staff, which increases the likelihood of
successful meeting outcomes such as understanding and acceptance of our proposed methods. Beyond
meetings, we are also prepared to make more informal calls to RWQCB staff to obtain input on key items
that arise along the way — especially updated MS4 Permit requirements, the fact that the Permit is
evolving while we are developing the EWMP update is a key complication that our team can handle. As
we develop the EWMP we will also highlight key elements of the MS4 Permit that are hindering our
ability to feasibly implement the EWMP and supporting programs.
3. Q .0 "'1 iraelk lbudget and Tinvoicing
As described in Section 5, Project Management, Paradigm has robust tracking and invoicing systems in
place and will adhere to the City's invoicing requirements such as formatting and schedule. Monthly
invoices will be submitted with a cover letter clearly explaining the work completed associated with that
invoice as well as a summary table of the month's invoice, total invoice to date, remaining budget, and
percent complete. Detailed invoices showing the total number of hours worked by each staff member of
the Paradigm team will be attached to the cover letter. Our systems will also carefully track
expenditures/effort by Paradigm staff and subcontractors to track their progress and percent complete
over the project. If budgeting issues arise, our Project Manager will coordinate with the City to find
solutions — we understand that change orders or budget increases are likely not possible and one of our
core project management missions will be to ensure the budget and schedule are maintained.
IIIIII IIC; III III Work 11:::)111an
Our proposed Work Plan strategy will generate the Work Plan through slide decks to allow for
engagement on key methods and findings, while the text/write-up would be generated under the EWMP
Update (Task 3). We believe this streamlined approach will save the EWMP group time and budget when
compared to developing a full written Work Plan, and more importantly will facilitate early and frequent
feedback and decision -making by City, County, and LACFCD staff. A series of illustrative slide decks
will be provided to the EWMP group with proposed methods and draft results. Feedback from the
EWMP group on the slide decks will be incorporated into the draft EWMP write-ups. With this approach,
the key methods and decisions are highlighted for proactive discussion with the EWMP group and the
outcomes of those discussions are incorporated directly into the draft EWMP. Beyond the slide decks,
the schedule for key meetings will be outlined as discussed above under `Coordinate Meeting Times and
Participation.' As EWMP development unfolds, we will also closely watch the MS4 Permit adoption
process — we are already tracking and supporting MS4 Permit revisions through other clients, which
means we will `intrinsically' track MS4 Permit issues without the EWMP group incurring extra costs for
Permit adoption tracking.
3 3III.......'. II III.,,,,Update
Our team will build upon years of experience for multiple EWMP groups to craft the EWMP and RAA
update approach. We bring the region's leading EWMP experts including the exact same consultants
who developed the original EWMP and the lead developers of WMMS 2.0. More importantly, our team
includes experienced strategic consultants who can develop sensible strategies for the USCR that reflect
the unique nature of Santa Clara River — particularly (1) SCR is ephemeral/dry except during large storm
events and except downstream of the water reclamation discharges, (2) USCR watershed is relatively
open space with highly erodible hills above the City, and (3) new development and annexation are
common here unlike other parts of LA County. The landscape of USCR is worlds apart from the highly
urbanized areas in other parts of LA County like LA River. The outcome of this task will be an updated
EWMP document — including all sections and appendices - that we anticipate will be approved by the
Paradigm Environmental 12
Uvdate Uaaer Santa Clara River EWMP/A: Resvonse File
RWQCB while reducing the cost and BMP capacity to achieve Permit requirements. Below are key
elements of our approach to the EWMP and RAA updates.
3.0.1 IData III:Revi Ilf:"W
The EWMP will include an analysis of Water Quality Priorities to highlight the contaminants causing
compliance challenges for the USCR. We will analyze the CIMP-based exceedances reported for USCR
in the context of the requirements of the SWRCB Order and consider whether the MS4 has the potential
to cause or contribute before updating the classification of water -quality issues into the Permit -defined
three categories. To support the categorization and meet the requirements of the MS4 Permit, a source
assessment will also be completed as part of this task. Given the expectations set in the SWRCB Order,
the source assessment will require a more robust approach than the original EWMP to ensure
approvability. Our source assessment will build off the existing source assessment and utilize a variety of
new information that includes the CIMP data, land use characterization data, findings from the EWMP
group's various MCMs, as well as modeling outputs. The outcomes of this task are a list of Water Quality
Priorities and a source assessment, which will be first delivered via slide decks to allow for early feedback
and then summarized in the updated EWMP document.
3.3.2 WIII'/SUS°I° ' II/Ill,,,,,llf:-)
Building upon (1) the information on existing and planned projects and programs and (2) feedback
received on the menu of BMP options compiled during the Work Plan, an implementation strategy will
be built using WMMS 2.0, which is readily accepted by the RWQCB and has been used for more
EWMPs/RAAs than any other.....................................................................................................
modeling system. WMMS 2.0 will tit 1-1-- °." A- ° "�°° ����° ^ � F-1.,,
be used to demonstrate that outputs
are able to predict current levels of
pollutants by comparing outputs to l
CIMP data. Next, the workflow with
WMMS 2.0 leverages optimization ro
routines that sift through millions of
options for distributed and regional a e
projects. A detailed analysis of the
potential footprint of BMPs will be
conducted with an emphasis on
managing impervious jurisdictional
areas (rather than open space), and
the optimization routines will........................................................................................................
consider cost-effectiveness to
recommend the strategies that
provide the most bang for the buck.
If;;lx irnlplle inew W11011AS 2,0 utility -for peirforirnling 113110113 irnodelliiin wind co t-
olptiiirniiz tiioin wind vlsajallzling wind extractling re aulltiiin 11:31101f3
iiirnlplleirneint tiioin Ipl in to sajlplport If;;IWll if ,
0.0.3 Ilf;;;; ii tin and New Ilf; 11 llf:°� Assessiment and St; lk lh lid it 11f:Iirocess
Our approach to BMP assessment will be built around a compilation of existing, planned, and future
BMPs that will set the stage for EWMP implementation strategy development. For existing BMPs, we
will update the existing control measures using information the EWMP group has provided in its annual
reports completed since the completion of the EWMP and by pulling data from WRAMPS. An online
survey will also be provided to help the EWMP group provide information on the BMPs that are currently
planned for implementation. Each of the planned Tier A and Tier B regional BMPs in the original EWMP
will be reviewed and assessed for continued inclusion in the EWMP. For future/newly proposed BMPs,
a "menu" of options will be provided in terms of the types of BMPs and programs to be implemented
including LID, green streets and regional BMPs. The EWMP group will be able to select from this menu
to craft the EWMP implementation strategy. We will also work with the EWMP group to capture any
Paradigm Environmental 13
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
additional non-structural control measure/MCM updates. Additionally, our approach will incorporate
the efforts identified in the Safe Clean Water Municipal Annual Plan and the Stormwater Investment
Plan for USCR. Linkage to Safe Clean Water funding and revenue from the City's stormwater fee will
be a core element of our EWMP implementation strategy creation.
We see opportunities to improve the EWMP implementation strategy by modifying the approach to
screening for future BMP opportunities, particularly green streets and regional BMPs. In the time since
the original EWMP was completed, our team has developed cutting edge approaches to identifying BMP
opportunities and sizing BMPs for cost-effectiveness. Most notably, we have new approaches for
inclusion of green streets within the EWMP that we see having potential to greatly reduce the extent/cost
of green streets in the EWMP by using different design and screening criteria. We also see opportunities
to limit the required implementation of structural BMPs by focusing on impervious surfaces that generate
pollutants and rationalizing why open lands and hills should be not necessarily managed within the
EWMP. By limiting the "footprint" of the
runoff capture compliance pathway, the
�CrcUy�rrmieu4rrluuwnrr��rr✓rvr�r�CrtWvdr"wr�vv�u�!�� gyp, d✓�'rrraarrrY4�
required BMPs could potentially be greatly ser�
reduced and at the same time focused on
runoff that is actually a potential concern to
public health as opposed to runoff from open
space which is generally not risky).AV
For this revised EWMP, the outline of newly
proposed regional BMPs will be "rapid
concepts" which outline the basic
components of the BMP (drainage area,
footprint, effectiveness, etc.). This list would
build upon the Tier A and Tier B projects in
the current EWMP. For proposed regional
BMPs that necessitate stakeholder
PrnJnrA ID 3:3,10 Intihm[foIImVh li D.3a
pvornGo 41 pa i%): 3:2a ]qyr Mliiv r � mtmr Depth {it7:
Oppnrt—Aly A—, Cac9i. 2.79 - _1 Opportu ity Area
u.nlrrnwo., 1 ;;Q' ParceN Extant
engagement, we have allocated time to 11:::x ii "ir 1pliid coii ireceintlly develIlolped -fair aJlpdates to
support the EWMP group with those flhe Illliilbuu Creelk If;;!Illf
discussions.
3.0.4 IIRea.soii Assuii Analyslis
The RAA is the culmination of modeling and engineering to create an EWMP implementation strategy
for USCR. The original RAA provided a strong foundation for us to build upon, and our primary mission
will be to (1) create an EWMP that is approved and addresses MS4 Permit and SWRCB Order provisions
and (2) is built around implementation actions/BMPs that are sound and sensible including:
The first part of the RAA process will address the calibration of the baseline watershed model, which
includes updating WMMS with the CIMP data collected since 2016. Paradigm is the leading WMMS
expert and will use the CIMP data to update the "default" calibration for WMMS 2.0 and
demonstrate the RWQCB's performance metrics from the RAA Guidance are attained. By using
WMMS 2.0, the approval process by the RWQCB and SWRCB will be streamlined because the
RWQCB was a member of the WMMS 2.0 Technical Advisory Committee, were engaged
throughout model development, and have an in-depth understanding of the model capabilities and
performance.
The second part of the RAA process uses cost optimization with WMMS2 to identify the "recipe" of
BMPs to achieve Permit limitations. Building upon (1) the information on existing and planned
projects and programs and (2) feedback received on the menu of BMP options, an implementation
strategy will be built using WMMS 2.0. WMMS 2.0 leverages optimization routines that sift through
millions of options for distributed and regional projects. A detailed analysis of the potential footprint
of BMPs will be conducted with an emphasis on managing impervious jurisdictional areas (rather
Paradigm Environmental 14
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
than open space), and the optimization routines will consider cost-effectiveness to recommend the
strategies that provide the most "bang for the buck." A full accounting of detailed BMPs and projected
costs will be generated based on the updated screening workflow (LID, green streets, and regional
BMPs).
• The WMMS optimization workflow will also address the "critical conditions" provisions of the
RWQCB's RAA Guidance. Since the original EWMP, we have developed updated approaches
to the 901 percentile critical conditions language in the RAA Guidance that we expect will reduce
the extent and cost of BMPs needed for EWMP implementation. The optimization workflow
includes using "critical conditions" that reflect wet weather for bacteria TMDL compliance, and
our team has experience with selecting the conditions that are most reasonable yet defensible. For
the bacteria TMDL, we will not necessarily simulate bacteria directly, instead a "bacteria storm"
will be used to generate BMP ....... ........ ........ ........ ........ ........
30
capacities by quantifying runoff
25 EMca edances not allowed
retention. By using the bacteria
20.1 uar M4lowablle Exce rdance (lays
storm, we are able to reduce the a Z. is � Annual 1.70h Wettest Day
size of BMPs by focusing on 1 K
smaller storms that occur after the � Exceedance Days in the TMDL Al 0
2002 2003 200,4 2005 2006 2007 200�8 2009 2010 2011
are accommodated and also wauer>rears
avoid demonstrating that 100 ... t
� dG14Vh Pa^va,mr�lYole C''a 14i a.xt Oa>rvdltporu
v bacteria concentrations can be 0 MM lnchesjd "y
reliably calibrated, which could
be a point of contention during p
peer review of the RAA.°
Combined with our other n
updated 901 percentile critical
condition approaches, we are 01
confident we can select '01}t; 10"70. 2056 30% 40% 5096 60'% 70'% 80% 'OU%G 100%
conditions that are most Percentile over 1G=year Record 010/1/2001 to 9130/2011)
reasonable and provide the IDeterirniiin tiioin o-f the criitiicM `rIbacterii torirn"Moir the orii¢ iiinM USCIR
EWMP group with a best chance If;;I IIAIU3 (1preveintling irnodelIliiin o-f Ibacteria Hood's wind redmling tlhe
of success by not overbuilding injirnlber aired cost o-f If3II0IU3 )
BMPs.
A limiting pollutant analysis will demonstrate that proposed BMPs address all water quality
priorities, using the latest SWRCB Order as guidance. The SWRCB raises the bar on the
quantitative analysis of pollutant reductions, particularly those pollutants that are not the
"limiting" pollutants. In the original EWMP, zinc and bacteria were justified as the limiting
pollutant and co -reductions of the other Water Quality Priority pollutants were not quantified.
We now have an updated approach where we can directly quantify the co -reductions of all
modeled pollutants for the BMP implementation strategy (sediment, metals, and nutrients).
Through linkages to the modeled pollutants and sediment and runoff volume, we can co -quantify
the reductions of non -modeled pollutants which is a key focus of the SWRCB Order. Note that
this analysis would likely not by itself increase the amount of BMPs needed in the EWMP, it
would mostly provide a "check the box" effort to address the SWRCB Order requirements. We
understand the concern that sediment linkages would be challenging in USCR given the erosion
from hills but note that sediment analyses for co -reductions would be focused on the impervious
areas, not the open space — the RAA is/will be architected in a way so that natural sediments
have little effect on the pollutant reduction requirements and analyses. Also, we are happy to
discuss alternatives for the limiting pollutant analysis methodology — with our set of tools we can
be flexible to accommodate alternative approaches preferred by the EWMP group. We will
Paradigm Environmental 15
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
deliver a limiting pollutant approach that is approvable and defensible without being a huge cost
and effort.
3.3. a Cost Ilf;;;isuirnt
The cost estimate generated for the EWMP implementation strategy will be based upon capital, annual,
and lifecycle cost analyses. The cost estimates will follow a similar structure as the original EWMP but
use updated BMP cost functions that were generated by Paradigm and the LACFCD during the WMMS
2.0 update. Alternatively, if the EWMP group has compiled cost information based on recent experience
during BMP implementation efforts, we can use those cost functions for generating the EWMP costs.
3.3.6 11191111estaine Schedulle
Part VI.C.5.c of the MS4 Permit discusses the compliance schedule requirements associated with the
EWMP. Our team will carefully consider the schedule for implementation, given that schedule is the key
consideration for implementation feasibility (more time, more feasible). EWMP implementation
schedules have typically been based on TMDL milestones (e.g., interim and final numeric limits with
interim and final compliance dates being the primary drivers for the RAA and EWMP implementation
schedule). Based on the compliance mechanisms provided by the MS4 Permit, four different types of
milestones will be considered and the approach that provides the EWMP group the greatest likelihood of
success will be proposed. The corresponding compliance schedule will in some ways be dependent on the
approach taken to outlining the schedule for attaining the SCR Bacteria TMDL and the selected
compliance pathway during implementation. The outcome of this task is an implementation schedule to
address Water Quality Priorities, which will be first delivered via slide decks to allow for early feedback
and then summarized in the updated EWMP document.
3. .7 I11'.1r ° Ilf) uir ent III°-)uIbIlii III°)irand III°°'iiin l Ilf) uiment Qiiin lludiin Ilf °t . and III°I it )
The Paradigm team will prepare a draft and final updated EWMP as described in the current and future
MS4 Permit and the scope of work. The Draft EWMP will incorporate work completed under the
previous tasks and including the updated milestones and schedules, fully updated recipe of distributed
and regional BMPs and costs, as well as an updated adaptive management process. The MS4 Permit
currently sets the process at every two years, while the 2020 Tentative Order establishes a five-year cycle.
The Draft EWMP will reflect the MS4 Permit in effect at the time, but also acknowledge the language in
the Tentative Order, if appropriate, to avoid the need to modify the adaptive management schedule to
reflect a new MS4 Permit.
The updated Draft EWMP will be provided in Word format to allow for review in track changes and will
be updated two times as part of the finalization process. This final version would also include all water
quality data and modeling files and results in a format compatible with the needs of the RWQCB's review
of the updated EWMP and RAA. The Final Draft Updated EWMP will be revised based on RWQCB
comments for review by the EWMP group and finalized based on those comments for submittal to the
RWQCB. As discussed above, we have included a meeting with the RWQCB to discuss their comments
and garner support and understanding of the updated EWMP.
I eIliiver blle
Table 1 summarizes the major deliverables for this project. Additional details are presented in the
approach.
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Uodate Uooer Santa Clara River EWMP/RAA: Resoonse File
"Table 1. 113roject IDelliiveralbles
Paradigm Environmental 17
Qndate UoocrSanta Clara River EWMP/RAA:Rzsnoose File
4 SCIII N III:
Table 2 presents the schedule for each proposed task and oubtaokdescribed in SOW. This schedule will
bcrevised (if necessary) based oocomments from the City, with the understanding that adraft
document will bccompleted hvJune 3O'2O2l.
Coordinate Meeting Times and Participation
Inception through October, 2021
October 2Q.2021
Project Status Meetings
Biweekly (8meetings)
Monthly
Meetings todiscuss Regional Board Comment
September-October,2O21
Sapt.2O21; Oot,2O21
Develop Work Plan Strategies
Inception through February 2O21
March 31.2O21
Response toQuestions
Aoneeded (Public webinorMay 2O21
As Needed
Develop Timelines
Inception through March, 2O21
March 31.2O2O
Coodinotewith Regulatory Agencies
Two Meetings before submittal toRB
March and May 2O21
Mar2O21; May.2O21
One Meeting after submittal toRB
Oohober2O21 (opprox)
October 15.2O21
Track Bd t andInvoicing
Inception through O b 2021
October 292021
Task 2. Develop Work Plan
Develop Work Plan
Inception throuhMaroh 2021
.
Maroh31' 2021
Work Plan
^,^,^..,^,^,^,^,Deliverable:
,^,^,^,^`�,^,^,^,^,^,^, Data Revew8WBPC
VVMMS/SUSTAN/LSPC
Existing and New BMPAssessment
Reasonable Assurance Analysis
Cost Estimate
Milestone Schedule
Draft Document, Public Process
Final Document (after RBcomments)
Data and Reports
Deliverable: UpdotedVVBPC List
Deliverable: Updated BMPCombinations
Deliverable: UpdsdedVVMMS/SU2TA|N/LSPC Models
Deliverable: Updated RAA
Deliverable: Updated Capital and Maintenance Costs
Deliverable: Draft Documents
Deliverable: Final Documents
Deliverable: Final Reports and Data
February through April, 2021
February through May, 2021
February through April, 2021
February through May, 2021
March through May, 2021
March through April, 2O21
April through June, 2O21
Oohober2O21 (oppmx)
April 3O.2O21
May 28.2O21
April 3O.2O21
May 28.2O21
May 28.2O21
April 3O.2O21
June 152O21
October 2Q.2O21
Juna3O; Oot2Q 2021
.
April 3O.2O21
April 3O.2O21
May 28.2O21
May 28.2O21
May 28.2O21
June 15.2O21
October 2Q.2O21
October 2Q.2O21
Paradigm Environmental 18
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
111 � )111:: „ III° III
Paradigm will provide overall management of the project. Paradigm has extensive experience managing
projects with similar scopes and schedules as the USCR EWMP/RAA, and we have developed and
continue to refine standard approaches to managing projects in an efficient and productive manner. Our
approach is based on clear and regular communication with our clients; accurate staffing, budget, and
schedule tracking; clear and defined subconsultant roles and expectations; and protocols for quality
assurance/quality control (QA/QC).
irrrrurrrriu.nirniituin„ Communication with the City and the entire project team is an indispensable
component of Paradigm's project management approach. The Paradigm Project Manager will be
responsible for ensuring communication protocols are in place and that regular check -ins with the City
occur. Our team will maintain open communication with the City and within the consultant team to
resolve issues that require discussion or guidance. Maintaining open lines of communication assists in
the timely resolution of critical issues that may arise and keeps the project focused, on schedule, and on
budget. We will identify key lines of communication and will utilize the regular project coordination
meetings to discuss key approaches and key deliverables. In addition to internal communications, some
aspects of the project may require external communication with regulators, stakeholders, and/or others.
To productively engage and educate interested parties, we will support the City in preparing for and, if
requested, participating in public meetings, and providing outreach as needed. This helps foster
relationships and builds trust and support for the EWMP/RAA.
Staff III°-)Il nirniiin , 1113udget, and Schedulle fimaking A key component of the management of the project
will be the identification of a core project team comprised of individuals from our entire team. We develop
initial estimates of labor hours and budget that includes projections of budgets to be expended throughout
the schedule to meet project milestones. Once we have the project staffing plan, Paradigm utilizes several
cloud -based project tracking and task scheduling products that greatly enhance our ability to work across
project teams, particularly when the project staff are in different locations. Our approach has greatly
enhanced our ability to continue to maintain productivity and schedules while working remotely during
the current pandemic. For example, Paradigm utilizes Box and Asana (see examples at the end of this
section) for secure cloud -based file sharing and tools that support project management. This includes
access to multiple apps for computer desktops and smartphones to support processes for sharing and
editing files, assigning tasks to project team members, tracking progress, managing workflow and
workload, and multiple visualization tools for these features. Paradigm also uses Replicon, a cloud -based
application supporting the accurate tracking of project time and expenses and the development of a
project staffing plans and monitoring of budgets and schedules for each project task. The project staffing
plan is entered into Replicon, and provides the benchmark to measure each task's progress and cost
performance relative to task budget and schedule.
The following figure presents the proposed project on a timeline chart that highlights which tasks run
simultaneously and when deliverables and meetings are planned. These dates will be confirmed with the
City and when approved, will be used to populate our project tracking tools highlighted in the paragraph
above.
Paradigm Environmental 19
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Uvdate Uaaer Santa Clara River EWMP/A: Resvonse File
Subconsulitaint Gooir&inatioin„ One of the critical aspects of project management is the assembly of a
team of subconsultants that have a shared interest in working together and a common understanding of
the project scope and their role(s). Developing the team requires understanding the skills, expertise, and
availability of team member staff. The team we have assembled exceeds the resource and capability needs
for this project and was selected based on a combination of technical qualifications, ability to leverage
experience from ongoing EWMP, and key personnel availability. With the proposed team and key
personnel, along with our deep bench of highly qualified individuals, we can ensure that this project
receives appropriate staffing and technical resources. We take great care in developing realistic staffing
plans that account for both planned and unplanned absences that may require backup coverage. Paradigm
will leverage the deep bench of resources from team members to ensure that individual skillsets and
experience are harnessed to provide the City with the expertise required and load -leveling necessary to
ensure the project receives superior attention and dedication. The firms that make up our team each
understand their role and the commitment expected of them. Paradigm has a close working relationship
with both firms. For example, Paradigm and LWA have worked together on nearly 50 projects, including
past and ongoing EWMP projects. Regular communication with our team will be a critical component
of our management of this contract.
Quallity A uir rn a, Qand Quallity Cointroll (QC) 11I::)iroceduires„ Paradigm has established QA/QC
procedures that will provide assurances that all data generated or used are appropriate, are of known and
appropriate quality, and are documented. All deliverables prepared will receive appropriate technical and
editorial reviews. Our managers and key staff have been the primary authors of numerous QAPP
documents covering modeling, data analysis, use of secondary data sources, monitoring, and laboratory
analysis and reporting. Although the Paradigm Project Manager will maintain primary responsibility for
the team's quality program, it is important that all team project personnel know that they share the
responsibility of producing quality products. Paradigm will provide direction and guidance to
subconsultants and technical and administrative personnel completing the work.
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Paradigm Environmental 21
Uvdate Uaaer Santa Clara River EWMP/ A: Iiesvonse File
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Paradigm Environmental 22
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
The Paradigm team is comprised of proven managers, experts, and staff with experience working with
municipalities in Southern California on the development of EWMPs/RAAs and other strategies to
address compliance with TMDLs and the MS4 Permit. The following provides a brief description of the
proposed roles within our team's structure, followed by an organizational chart and short resumes for our
key personnel. As a reflection of the technical nature of the EWMP, the Paradigm team has been built
around specialized technical and/or regulatory expertise specifically related to scope of work. Our team
is structured as follows:
Project Manager: Dustin Bambic will be our Project Manager and the primary point of contact for the
City. Dustin is currently leading multiple EWMP and RAA efforts throughout the Los Angeles Region
and he has significant experience working with individuals on the Paradigm team to deliver high quality
solutions under tight timeframes. Dustin will coordinate with the City and County and provide the time
and attention needed to produce an updated EWMP that addresses the unique conditions of Santa Clara
River, incorporates the unique viewpoints of City of Santa Clarita, and increases the feasibility of BMP
implementation (compared to the original EWMP).
Strategic Advisors: The Strategic Advisors (Steve Carter [Paradigm] and Ashli Desai [LWA]) are highly
experienced and respected professionals with a unique combination of technical and regulatory expertise
related to the scope of work. The Strategic Advisors will work closely with Dustin to provide strategic
guidance on the challenging aspects of the project. Ashli Desai will support EWMP development at key
milestones during the project, and we will rely on her experience and relationships with RWQCB staff
during engagement.
Key Staff. The Paradigm team includes key staff that are experienced professionals with a unique
combination of technical and regulatory expertise. These individuals were selected to successfully lead
the major components of the scope of work outlined in the RFP. The Key Staff will also provide strategic
guidance, quality control review and will work closely with the Project Manager on delivering the work
products. The specific project roles and activities supported by Key Staff are summarized in the table
below. The Cost File submitted with our proposal includes the names of the key personnel to provide
their relationship to the overall cost and project activities. Attachment 1 includes 1 page resumes.
Dustin will be the primary point of contact and he will oversee all
Dustin Bambic, PH
Project Manager
project activities and will work with sub -consultants to ensure timely
and high -quality products.
Steve will serve as key advisor providing input on strategies to
Strategic Advisor &
address and demonstrate compliance with TMDLs, RWLs, and other
Steve Carter, PE
Stakeholder/Regulator
priority water quality conditions. Steve will also play a key role in the
Engagement
QA/QC of the RAA and modeling assumptions associated with
pollutant loading and BMP performance.
Ashli will serve as a strategic advisor on the interpretation of MS4
Strategic Advisor &
Permit and TMDL requirements and WQBELs and RWLs that serve
Ashli Desai
Stakeholder/ Regulator
as goals for the EWMP/RAA. She will also play a key role ensuring
Engagement
that planning approaches reflect the preferences of the EWMP
group, and will support meetings with the RWQCB to obtain buy -in
on the EWMP/RAA.
John will lead all modeling efforts and will work closely with the rest
John Riverson
RAA Modeling Lead
of the team to adapt and customize the modeling approach to the
unique characteristics of the USCR watershed.
RAA Modeling Support
Ryan will support all modeling efforts for the RAA, with emphasis on
Ryan Edgley
& Existing/New BMP
the development of BMP modeling assumptions and the simulation
Assessment
of associated pollutant load reductions
Paradigm Environmental 23
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
III°°� iir iii m II[;;;;;',in "iir ii i m in 111 11I::Iesuiirnes
Dustin Bambic, PH, Principal Hydrologist.
M.S., Civil and Environmental Engineering, 2003, University of California -Davis
M.S., Hydrologic Science, 2003, University of California -Davis
B.S., Physics, 2000, Western Kentucky University
B.S., Mathematics, 2000, Western Kentucky University
Dustin is an expert in watershed hydrology, pollutant fate and transport, and stormwater compliance. He
served as Paradigm's project manager and overall technical lead for the development of the largest
EWMPs in Los Angeles County (USCR, Upper LA River, Ballona Creek, and Upper San Gabriel River).
Dustin understands the unique conditions of Santa Clara River and unique perspective of City of Santa
Clarita and is ready to navigate an EWMP update that moves the needle in term of BMP implementation
and feasibility while being approvable. Dustin has strong relationships with RWQCB, EPA, and NGO
staff, gained through years of meetings and collaborating on key MS4 Permit compliance issues in the
region. Dustin was a key collaborator with the RWQCB when they drafted the region's RAA Guidelines.
He is also supporting the LACFCD with program management of the Safe Clean Water Program
including the development of web -based tools and websites. Dustin's ability to effectively communicate
technical subject matter has led to multiple agencies relying on him to present and discuss their
stormwater compliance plans with their mayors, city managers, and boards of public works. Dustin's role
and level of involvement in the projects listed in the qualifications are summarized below:
Dustin was the technical lead for the USCR RAA and led Paradigm's modeling team to develop a
strategy that addresses bacteria and other water quality priorities. He drafted key sections of the
EWMP and worked closely with Ashli Desai (the primary author of the original EWMP) to
understand her strategy and approaches to addressing Permit requirements.
Dustin currently serves as the Technical Lead of RAA updates for Malibu Creek, Santa Monica Bay
J2/J3, Ballona Creek, Upper LA River, Upper San Gabriel River, and Dominguez Channel. Dustin
plays a key role in the interpretation of WQBELs and RWLs and determination of pollutant -specific
critical conditions that form the basis of pollutant load reduction goals that are foundational to RAAs.
Dustin was the consultant lead and primary author of the 2016 Upper LA River EWMP and he led
the RAA for the Ballona Creek and Upper LA River EWMPs. Dustin led numerous stakeholder
meetings to support the development of the EWMP and led components of a public workshop to
solicit feedback from the public and interested agencies. He also conducted meetings with the ULAR
Paradigm Environmental 24
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
WMG, City managers, City of LA mayor's office, Heal the Bay, RWQCB, and EPA to foster support
for the ULAR EWMP approach.
Dustin is Paradigm's project manager on the LA County Green Street Master Plan and has developed
innovative approaches to size the green streets in accordance with SCW scoring criteria, in order to
maximize the potential that projects are successfully funded by the Regional Program.
Dustin serves as the project manager in the development of web -based tools to support the
implementation of the Los Angeles County SCW Program's funding initiative for stormwater
improvement projects. The Projects Module allows cities to enter information on candidate
stormwater projects, and calculate scores associated with project effectiveness and other sustainable
and multiple -benefit metrics. This experience will help the USCR WMG link its watershed plans with
SCW funding.
John Riverson, Principal Water Quality Analyst
M.S., Civil and Environmental Engineering, 1999, University of Virginia
B.S., Civil and Environmental Engineering, 1997, University of Virginia
John has more than 20 years of experience developing and applying hydrologic and water quality models,
with a focus on public domain models typically used to support water resources management and
regulations and subject to peer review (e.g., HSPF, LSPC, SWMM, SWAT, CE-QUAL-W2,
QUAL2E/2K, SUSTAIN). He has an in-depth understanding of meteorological and hydrological
processes and interactions, watershed and stormwater management and control measures, water quality,
and pollutant source characterization. John led the development of EPA's LSPC model for 12 years and
was responsible for designing system architecture and developing algorithms for most of the core LSPC
modules (LSPC served as the model support most TMDLs in the Los Angeles Regions). He also led
development of EPA's ground -breaking, publicly available modeling tool SUSTAIN, which provides
linkages to SWMM, HSPF, and LSPC, and dynamic simulation and cost -optimization of stormwater
BMPs to support stormwater and TMDL implementation planning. John's role and level of involvement
in the projects listed in the qualifications section are summarized below:
v John was the primary modeler of the original USCR RAA and is ready to update the original modeling
files using Paradigm's new tools and techniques.
John serves as Paradigm's lead modeler, and as the technical lead of the development of WMMS 2.0,
he serves a critical role in all RAA updates to leverage the WMMS 2.0 system of models and tools to
perform cost-efficient updates to RAAs throughout the region.
John served as the modeling lead in the development of Los Angeles County's original WMMS and
recent updates for WMMS 2.0, which includes linkages of LSPC and SUSTAIN and utilities tailored
for the Los Angeles Region to support RAAs.
John served as the modeling lead for successful completion of ten WMPs and EWMPs in Los Angeles
County addressing multiple pollutants, including bacteria, metals, toxicity, nutrients, and others.
John served as the lead modeler for the San Mateo County and Santa Clara County RAAs addressing
PCBs and mercury, and the City of San Jose RAA addressing bacteria.
Steve Carter, PE, Discipline Leader, Principal Engineer
M.S., Environmental Engineering, 1999, University of North Carolina at Chapel Hill
B.S., Civil Engineering, 1997, University of North Carolina at Charlotte
Steve has supported numerous federal, state, and municipal clients in the areas of emerging stormwater
engineering practices, watershed and infrastructure planning, regulatory support, modeling. He has
managed a wide spectrum of projects, from water quality improvement planning to city-wide
infrastructure management, and is committed to developing tailored approaches to match the unique
vision and goals of each client's program. Steve has developed innovative approaches to TMDL
development and implementation during numerous projects in the LA Region, including project
Paradigm Environmental 25
Uvdate Uaaer Santa Clara River EWMP/RAA: Resvonse File
management of advanced modeling systems to identify cost-effective BMPs to reduce stormwater
impacts, evaluation of the impacts of industrial stormwater dischargers on receiving water, and
development of watershed management programs. He has managed leading -edge modeling efforts
throughout California, including development of the LA County's WMMS, the modeling system
supporting RAAs and the assessment of load reduction goals to meet applicable TMDLs and WQBELs
in the region. He has also supported the development of numerous RAAs supporting WMPs and EWMPs
throughout the LA Region, including the Upper LA River, Los Cerritos Channel, Lower San Gabriel
River, Dominguez Channel, Upper San Gabriel River, Ballona Creek, Malibu Creek, and USCR. Steve's
role and level of involvement in the projects listed in the qualifications section are summarized below:
Steve is currently serving as the Project Manager for updates to RAAs for Lower LA River, Los
Cerritos Channel, and Lower San Gabriel River. Based on his extensive experience leading model
applications in the LA region, including WMMS development, previous RAAs, and models
supporting TMDL pollutant source assessments, he also serves as a technical advisor to all RAA
updates currently being performed by Paradigm in the region.
v Steve is served as project manager supporting the LACFCD in the development of WMMS 2.0 for all
of LA County's watersheds. WMMS 2.0 builds upon a previous WMMS modeling system originally
developed by Paradigm staff, and adds new capabilities for improved accuracy for simulation of
hydrology, water quality, and BMP performance.
For the Dominguez Channel EWMP, Steve served as the technical lead in the RAA to quantitatively
demonstrate that planned BMPs provide compliance with TMDLs and WQBELs. Based on his
experience supporting EPA on the development of the Dominguez Channel and Harbor Waters
Toxicity TMDLs, he developed approaches for quantifying load reductions that met TMDL
wasteload allocations and considered new methods for quantifying these loads based on critical
conditions.
v Steve served as the technical lead of the RAA and guided the modeling team for the Lower LA River,
Lower San Gabriel River, and Los Cerritos Channel WMPs and Malibu Creek EWMP.
Steve served as the project manager of all Water Quality Improvement Plans led by the City of San
Diego to address requirements of the San Diego MS4 Permit, including RAAs addressing bacteria and
metals.
Steve served as the project manager for multiple watershed planning efforts in the San Francisco Bay
region, including the RAAs for San Mateo County and Santa Clara County addressing bacteria, PCBs,
and mercury loading to San Francisco Bay, and current efforts to develop the San Mateo County
Sustainable Streets Master Plan.
Ryan Edgley, Water Resources Engineer
M.S., Hydrology, 2016, Colorado School of Mines
B.S., Geology, 2014, California State Polytechnic University, Pomona
B.A., Science, Tech & Society, 2014, California State Polytechnic University, Pomona
Ryan is a Water Resources Engineer and Hydrologist who specializes in water resources management,
stormwater modeling, and BMP feasibility and implementation. His areas of focus include hydrologic
and hydraulic (H&H) modeling, 2D watershed modeling, geospatial and data analysis, and strategic
watershed planning. Ryan is experienced using several models, including PC-SWMM, EPA-SWMM,
SUSTAIN, LSPC, WSPG, and HEC-HMS. Ryan leverages his broad experience with H&H models,
GIS, and matrix manipulation software (e.g., MATLAB, R) in supporting BMP implementation
strategies. Ryan's role and level of involvement in the projects listed in the qualifications section are
summarized below:
Ryan is serving in a key role on all RAA updates led by Paradigm to work with cities, the County,
and EWMP development teams to identify modeling assumptions for structural and nonstructural
control measures that form the basis for the EWMP implementation strategy determined by the RAAs.
Paradigm Environmental 26
Uvdate Uaaer Santa Clara River EWMP/A: Resvonse File
For WMMS 2.0, Ryan coordinated all efforts across the project including two-tier model optimization
development (using the SUSTAIN model), hydrology and water quality model calibrations (using the
LSPC model), technical document writing, and task management to streamline the overall process
and provide deliverables that exceeded client expectations.
For the LA County Green Streets Master Plan, Ryan developed the optimization model structure to
determine optimal project implementation sizes with respect to cost and pollutant load reduction for
each identified green street. This approach automated 100,000's of WMMS model runs resulting in
maximized scores for the Safe Clean Water Program
Ill,,,,,,,,airry WallIlIkeiriii °ts 111:Resuir-ines
Ashli Desai, President
M.S., Civil Engineering -Environmental Engineering and Science, 1996, Stanford University, Stanford
B.S., Earth Systems -Environmental Technology, 1995, Stanford University, Stanford
Ms. Desai provides regulatory assistance, watershed management, and TMDL development and
implementation support to clients throughout California. Ms. Desai is primarily responsible for
overseeing LWA's TMDL and regulatory assistance work in Southern California, including NPDES
permit assistance; regulation and policy review and comment; TMDL review, development, and
implementation; stormwater permit development and implementation; agricultural order assistance; and
watershed management. Ms. Desai specializes in facilitating coordination between municipal agencies,
stakeholder groups, and regulatory agencies to address complex water resource management issues. No
other consultant has worked as closely with RWQCB staff, and Ashli will be a key resource for RWQCB
engagement. Ashli has reviewed and commented on nearly every TMDL in the LA region and every
version/draft of the MS4 Permit.
Project manager responsible the development of the EWMP and Coordinated Integrated Monitoring
Plan (LIMP) for the USCR. The multi -year project included the identification of water quality
priorities for the planning area, evaluation of control measures to address the identified priorities and
demonstrate implementation of the control measures will meet permit requirements, and preparation
of a coordinated monitoring plan to characterize stormwater and non-stormwater discharges and the
receiving water. She was the primary author of the EWMP and responsible for facilitating the
stakeholder process, coordinating with the RWQCB, and managing all of the technical work to
develop an approvable EWMP Work Plan, EWMP and LIMP.
Project manager responsible for supporting the City and County of San Diego and Orange County
with strategic planning for implementation of the Indicator Bacteria, Project I — Twenty Beaches and
Creeks in the San Diego Region (Bacteria TMDL). Work included the development of a process plan
that outlines the process for working with the San Diego RWQCB to successfully incorporate the
results of special studies into revised TMDL provisions. The strategic support included identifying the
key aspects of the TMDL to be addressed through a reopener, a process for working with the RWQCB
staff to review and consider the technical work, a process for using the technical work to develop a
Basin Plan Amendment for the Bacteria TMDL, and approaches to coordinate other related TMDL,
permit and other applicable regulatory requirements. Ashli developed a revised TMDL technical
report that focusses on reducing human health risk by addressing human sources of bacteria rather
than only reducing fecal indicator bacteria concentrations. Also prepared modified permit language
to incorporate the proposed approach into the MS4 permit. Currently supporting two watershed
groups with development of a plan for interim bacteria TMDL permit compliance that focusses on
reducing risk by addressing human sources of bacteria.
Strategic advisor for multiple projects involving the coordination of technical studies evaluating
sources and risk to human health from pathogens with MS4 permit and TMDL requirements. Projects
include, incorporating risk -based compliance strategies into the Los Angeles Region permit renewal
process and strategic review for the Lower American River Pathogen Study. Ms. Desai also supported
Paradigm Environmental 27
Uvdate Uaaer Santa Clara River EWMP/A: Resvonse File
the development of bacteria data reviews for 303(d) listings, bacteria TMDLs, and/or implementation
plans for Malibu Creek, Ventura Harbor, Kiddie Beach, and Santa Clara River.
Chris Minton, Vice President
M.S., Environmental Science & Management, 2002, University of California, Santa Barbara
B.S., Geology, 1998, University of Washington, Seattle
Mr. Minton has supported numerous Los Angeles Region clients with negotiations on National Pollutant
Discharge Elimination System (NPDES) permits for both stormwater and wastewater, development of
EWMPs and CIMPs, development of TMDL implementation planning processes and monitoring
programs, and metals and bacteria special studies. Chris has reviewed and commented on nearly every
TMDL in the Los Angeles Region and every version/draft of the MS4 Permit.
Project Manager for the review of the 2019/20 SWRCB's Order related to the approval of WMPs
pursuant to the RWQCB Order R4-2012-0175. For the City of Malibu, developed comments focused
on demonstrating how the City's EWMP adequately provided information to support deemed
compliance status for the Santa Monica Bay (SMB) Bacteria TMDL and demonstrating how the
SWRCB inappropriately assessed the City's ASBS Compliance Plan. Subsequently, LWA reviewed
the revised draft order and provided an update to the City regarding the implications of the changes.
Several components of the Order were revised based on the comments developed by LWA.
Additionally, led the evaluation of water quality data to assess exceedances of limitations and reviews
of the ASBS Compliance Plan and trash implementation efforts. LWA provided options to address
potential future violations, potential issues with the ASBS Compliance Plan, and improving the City's
future compliance situation.
Served as Project Manager for the development of a bacteria source tracking study on sections of the
Los Angeles River. Primary responsibilities include managing technical staff to develop and
implement a comprehensive source tracking study using state of the science methods to evaluate the
effect of MS4 discharges on bacteriological water quality. During TMDL development, primary
responsibilities included working closely with Permittees, EPA, and RWQCB staff to ensure the
development of a source assessment utilizing bacteria source tracking data, development of a revised
approach to targets for inland surface waters, incorporation of both exceedance day and mass -based
WLAs to support a quantitative implementation approach, and an implementation plan that considers
regulatory approaches to support refinement of implementation efforts. Worked with a diverse
stakeholder group through a variety of forums.
Project Manager responsible for assisting City of Los Angeles on the MS4 permit renewal process for
Order No. R4-2012-0175 and the 2020 renewal process. Support included meeting consistently with
City and RWQCB staff to negotiate the Permit, developing detailed technical and regulatory
comments, and supporting the City at the RWQCB workshops and adoption hearings. Developed
several approaches that were utilized by the RWQCB as the basis for key permit sections, including
(1) watershed -based permit structure, (2) BMP-based compliance options for interim TMDL
wasteload allocations, (3) utilizing the EWMPs as a compliance option for the RWLs provisions, (4)
development of the EWMP that incorporates all elements of the Permit, but allows Permittees to focus
efforts on identified water quality issues, and (5) development of alternatives to the MS4 monitoring
program resulting in flexibility with monitoring implementation.
Project Manager for over 10 years on multiple City of Los Angeles on -call services contracts related
to addressing technical and regulatory challenges associated with TMDLs, MS4 Permit, water quality
criteria, and monitoring. Responsibilities include identifying developing and implementing project
approaches and managing individual project efforts.
Paul Hartman, Associate Scientist
B.S., Biology, 1995, James Madison University, Harrisonburg, VA
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Mr. Hartman is an Associate Scientist serving a Project Manager in stormwater and watershed
management, and as the Regional Office Manager for LWA's San Diego Office. His prior experience
managing local stormwater programs, followed by eight years serving these same programs as a
consultant, arms him with valuable expertise in developing water quality programs to address regulations
that are focused on pragmatic, cost effective, and compliant solutions. His experience includes
development and implementation of jurisdictional and watershed programs, TMDL development and
implementation related to bacteria and nutrients, and implementation of programs to comply with new
regulatory policies (e.g., Statewide Trash Amendments).
Project Manager leading the development and implementation of a Comprehensive Human Waste
Source Reduction Strategy (Strategy) that provides reasonable assurance of attainment of interim (and
potentially final) dry weather compliance targets for the Bacteria TMDL. The Strategy brings together
data and analysis from multiple monitoring programs and special studies to provide a comprehensive
evaluation of the water quality and risk to recreators. The approach includes evaluation and
assessment of traditional water quality indicators and human biomarker data (i.e., HF183), moving
the watershed towards a more risk -based approach to implementation and compliance. The Strategy
is focused on three key areas: demonstrating attainment of TMDL targets in receiving waters and at
MS4 outfalls based on various water quality/quantity data (e.g., fecal indicator bacteria, flow,
HF183), implementation of monitoring programs to identify areas of the watershed where human
biomarkers are present (leading to prioritized follow-up investigations and abatement), and updates to
implementation, investigation, and abatement strategies to best address potential sources of human
waste. The Strategy provides reasonable assurance to demonstrate attainment of interim dry weather
compliance with the Bacteria TMDL.
Project Manager leading the development and implementation of work plans, Water Quality
Improvement Plan (WQIP) updates, and monitoring frameworks to address concerns from the
RWQCB and public related to bacteria from the watershed potentially affecting shellfish harvesting
and recreational beneficial uses in Agua Hedionda Lagoon. The work plan identified key assessments
to support prioritization of SHELL and REC beneficial uses within the Carlsbad WQIP and to support
discussions with RWQCB staff in response to comments on the WQIP Annual Reports. A sequential
phased approach to implementation was developed in conjunction with the RWQCB and stakeholders
that consists of an evaluation of beneficial uses related to bacteria, source characterization within the
Lagoon, and source investigations/elimination within the watershed if needed. Monitoring
frameworks specific to SHELL and REC beneficial uses were recently developed and are under review
with the RWQCB.
Chad Helmle, PE, President & CEO
M.S., Civil Engineering, 2005, Cornell University
B.S., Engineering and Environmental Science, 1997, University of Notre Dame
Chad prides himself in taking a passionate and active management role and remaining engaged in a
meaningful and productive manner throughout the duration of projects. Chad is an influential force in
the national stormwater industry, is trusted by key NGOs and regulators, and has been published in
various civil engineering magazines. He has overseen numerous large municipal on -call stormwater
programs throughout southern California, including for the counties of Los Angeles, Orange, and
Riverside and the cities of Los Angeles and San Diego. He also led project conceptualization and
modeling efforts to develop RAAs for nine of the largest WMPs/EWMPs, including the USCR.
Recently, Chad has overseen conceptualization of over $1 B of stormwater capital infrastructure
submitted for Safe Clean Water Funding, and over 100 stormwater capture projects throughout Southern
California. Chad's experience also includes:
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v Chad was the project manager and lead responsible for successful execution of the Rio Hondo/San
Gabriel River revised WMP. He applied an innovative approach to watershed planning by facilitating
unprecedented, transparent dialogue between municipal watershed managers, key NGOs (LA
Waterkeeper and NRDC), and RWQCB staff to transform the Group's costly, green -street -heavy plan
into an achievable compliance pathway.
Chad served as strategic adviser to the ULAR WMG when developing their first round of SCAT
scientific study applications; the outcomes secured $3.5M of new funding for the Group.
Chad also previously served as principal -in -charge for the USCR CIMP implementation.
Brad Wardynski, PE, Senior Project Manager
M.S., Biological and Agricultural Engineering, 2012, North Carolina State University
B.S., Biological and Agricultural Engineering, 2010, Michigan State University
Brad has almost a decade of experience working to enhance and augment the water resources of
California watersheds. He has brought unique creativity and thoughtful analysis to bear as the architect
of key technical efforts in Southern California, including revision of the Rio Hondo/San Gabriel River
WMP (which reduced compliance costs by almost $113 while gaining key stakeholder support) and the
successful proposal and initiation of the preSIP scientific study (which secured $2.3M Safe, Clean Water
Program funding for the Upper LA River watershed group). In the past year, Brad has led numerous
multi -benefit master planning efforts to identify and prioritize tens of thousands of stormwater capture
projects across hundreds of square miles and over 100 municipal agencies. In his previous capacity, Brad
personally led the identification, prioritization, field assessment, and conceptualization of stormwater
control measure opportunities included in the original USCR EWMP. Brad's role and level of
involvement in the projects listed in the qualifications are summarized below:
Brad is currently serving as project manager leading updates to the ULAR EWMP and RAA — the
largest in the region — and concurrently advancing the Safe, Clean Water Program -funded scientific
study to enhance the Group's project opportunities and partnerships.
Brad led countywide identification, modeling, prioritization, and conceptualization of regional
stormwater capture projects for all of Ventura County's MS4 permittees. This effort required carefully
considering the land use and hydrology of the Santa Clara River watershed to recommend projects
well -suited to the unique conditions.
In addition to the Pasadena and Alhambra stormwater master plans, Brad is actively managing 4 other
implementation -scale stormwater master plans throughout Southern California, which affords him a
broad, diverse, and creative perspective.
Brad is also leading Craftwater's efforts to support the Safe, Clean Water programs' development and
implementation of a Credit Trading program
Oliver Galang, PE, ENV SP, QSD/P, Principal Engineer
Bachelor of Science, Civil Engineering, 1993, California State University, Fullerton
Oliver Galang has more than 27 years of professional engineering experience in planning, design,
construction, and program management of multi -million -dollar municipal capital improvement projects,
specifically in water resources and stormwater infrastructure throughout southern California. He has
extensive experience in the areas of water resources, stormwater and urban runoff management, water
quality monitoring programs, flood management, and various types of green infrastructure. He is
currently leading Craftwater Engineering's Water Resources services in the Los Angeles County area.
Highlights of Oliver's career also include service as the Los Angeles River Watershed Manager for the
Los Angeles County Department of Public Works, where he was responsible for planning multi -use,
multi -benefit projects, along the Los Angeles River. He has served as the Water Quality Monitoring
Programs Manager for Los Angeles County Department of Public Works, including Los Angeles County
Flood Control District (LACFCD's) National Pollutant Discharge Elimination System (NPDES)
Municipal Stormwater Monitoring Program. He also managed the operations of the LACFCD flood
Paradigm Environmental 30
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control and water conservation system, which consisted of 14 reservoirs, 500 miles of conveyance
channels, and 27 groundwater recharge facilities. Oliver's role and level of involvement in the projects
listed in the qualifications are summarized below:
Oliver served as the Project Manager for the USCR LIMP. This project consists of the
implementation of the monitoring program for the City of Santa Clarita and the County of Los
Angeles within the USCR Watershed. The CIMP includes dry- and wet -weather sampling of
receiving water and outfall locations to address the requirements of the MS4 Permit, including TMDL
limits. The program includes sample collection, laboratory analyses, and reporting.
Oliver serves as the responsible Principal for the Pasadena Stormwater Drainage Master Plan and the
Alhambra Stormwater Master Plan. His depth of municipal planning experience will support strategic
decisions for the implementation of stormwater facilities.
Oliver served as the Project Manager and Technical Lead for the development and implementation of
Stormwater Capture Facilities for Lakewood Bolivar and Mayfair Parks, Bellflower Caruthers Park,
Culver Boulevard Median, Carson Carriagecrest Park, and Santa Monica Clean Beaches Project. He
was also responsible for presenting these projects at City Council Meetings and Community
Stakeholder Meetings.
Oliver led the development of a multitude of Feasibility Studies that were submitted for funding under
Safe, Clean Water Program, including Long Beach El Dorado Regional Project and Skylinks Golf
Course, Baldwin Park Barnes Park Stormwater Capture Project, Covina Wingate Park Stormwater
Capture Project, Norwalk Hermosillo Park Stormwater Capture Project, Bellflower Simms Park, and
Los Angeles Valley Village Stormwater Capture Project. This experience will guide the development
of stormwater capture projects that address water quality objectives, maximize multi -benefit
opportunities, and offer implementable approaches.
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The following is a list all sub -consultants proposed for this project, including descriptions of their
qualifications and specific responsibilities.
LWA will support the Paradigm team in updates to the EWMP, with a specific focus
on the identification and modification of priority water quality conditions that form
.® the basis for the EWMP implementation strategy. LWA will also support meetings
with regulators and stakeholders to present and obtain buy -in on the strategies
proposed in the updated EWMP.
LWA is a California -certified small business enterprise headquartered in Davis with regional offices
located in Santa Monica, Ventura, Berkeley, San Jose, and San Diego, as well as Seattle, WA. LWA
currently has about 50 professional and support staff who provide consulting services ranging from highly
specialized stormwater, watershed, and water quality management and regulatory support to traditional
program implementation and reporting.
Examples of LWA's specialized services include NPDES MS4 permit renewal assistance; watershed
planning, management, and assessment; water quality monitoring program development,
implementation, data evaluation and reporting; TMDL development and implementation; funding
analyses; all facets of program implementation; and grant application development. LWA is a leader in
all phases of stormwater management and has as a successful history supporting California municipalities.
LWA has developed stormwater solutions for multiple Southern California counties and cities, including,
but not limited to, the cities of Los Angeles, Burbank, Redondo Beach, San Diego and the counties of
Los Angeles, Ventura, San Diego, and Riverside; as well as local EWMP groups, including the USCR,
Malibu Creek, Santa Monica Bay J2/3, Ballona Creek, and Calleguas Creek watersheds. LWA was the
prime contractor during the development of the USCR EWMP, which was uniquely tailored to the
watershed and the City. Additionally, with experience in Bacteria Implementation for the Los Angeles
Region, LWA is familiar with the unique challenges that the USCR EWMP group has faced and has
specific experience and qualifications that will support this effort include:
® Regulatory Assistance. LWA supports stormwater, wastewater, and agricultural clients in evaluating,
interpreting, and developing regulatory solutions for complex water quality issues. LWA is
recognized in the region and across California as a leader in supporting clients negotiating their MS4
Permits and TMDLs. They have worked with staff from the EPA, SWRCB, and various RWQCBs
to effect change in regulatory outcomes.
® Stormwater Program Management. LWA's expertise with the development and implementation of
key stormwater program elements range from supporting the development of large-scale management
plans such as EWMPs to developing and implementing programmatic elements such as illegal
connection and illicit discharges, industrial and commercial, public involvement and education,
construction, municipal operations, post construction, program assessment, and reporting. LWA's
guidance and implementation tools and templates reflect their staffs real -world practical experience.
® Water Quality Monitoring. LWA merges real world monitoring experience with their in-depth
knowledge of the MS4 Permit and TMDLs to craft effective and efficient monitoring programs that
support agencies in answering key management questions. LWA has led the development and
implementation of numerous large multi -agency, multi -year monitoring programs, including multiple
CIMPs across the County. LWA's monitoring experience is extensive and includes managing
programs for stormwater agencies, watershed groups, and agricultural coalitions throughout
California.
Paradigm Environmental 32
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v Pollutant -Based Programs. LWA's pollutant -based work includes the development of targeted
management approaches and programs for bacteria, trash, nutrients, toxicity, organophosphate and
organochlorine pesticides, pyrethroids, metals, mercury, and sediments.
In addition to multiple projects presented in Section 2, the following are key examples of projects led by
LWA that are relevant to the services requested by the USCR EWMP group.
1,,,,,,,A iii nr fll teiiriiiSource finvestigatiloin Study and fll3aaiiriii TII ID111,,,,, Devel 1pirn in
(._Yient. City of LA, Watershed Protection Division (WPD) and multiple cities
As a component of the Cleaner Rivers through a
Effective Stakeholder TMDLs (CREST) VeyOwd'lII add _isedbLR5A,d
»1✓F, xli aadn'p, rmlu. (bi lion MAN mnr elav I
stakeholder process, and in support of the w I A- 44 Irz „�, "am
development of the LA River Bacteria TMDL v
WPD funded a Bacteria Source Investigation `g p
(BSI) Study of the LA River. The overall goal of
the study was to quantify the relative loading o A;
rates of bacteria sources, particularly urban
runoff, and uncontrollable sources(e.g.,birds or
regrowth), along the most -impacted reaches of "
the LA River. The BSI Study is still considered p
umber VO,V.11., Add dby LIR9M 111
the most advanced MST study of urban runoff M
ever conducted. The array of bacteria measurements was synthesized using a Weight -of -Evidence
Approach and Monte Carlo analysis to highlight the priority outfalls for TMDL implementation and
quantify the expected effect of implementation actions. Subsequent to the BSI Study, LASAN funded the
development of the LA River Bacteria TMDL through a stakeholder process. Team members authored
TMDL sections for the source assessment, targets, linkage analysis, allocations, and a dry weather
implementation strategy. Development of each of these sections was coordinated with the diverse CREST
stakeholder group (MS4s, Heal the Bay, Caltrans, the RWQCB, and EPA), including a variety of meeting
forums and a long series of presentations. The TMDL ultimately adopted by the RWQCB has a 25-year
dry weather schedule, the longest dry weather schedule in the region.
Paradigm and LWA have led development of multiple Load Reduction Strategies (LRSs) for City of LA,
to help the City comply with the LA River Bacteria TMDL. Paradigm and LWA served as the lead author
for the LRS reports, coordinating meetings with other cities who are members of the LRS groups, and
led several meetings with RWQCB staff.
III,,,,,,,os AingellesCoountywilde IIMS4II°:) irmiii , IlReinewal Support
(._Yient. City of LA, LA County Department of Public Works, Ventura County Watershed Protection District
During the current development of the Los Angeles Regional MS4 Permit, LWA is providing regulatory
support to MS4 Permittees with the development of comments for key issues on the Working Proposal
(December 2019) and Tentative Order (August 2020), including the incorporation of TMDL wasteload
allocations (WLAs) into the MS4 Permit, monitoring requirements, BMP-based compliance mechanisms,
and monitoring and reporting requirements. LWA has participated in meetings with RWQCB staff and
NGOs to protect several key elements of the current MS4 Permit which were developed by LWA as part
of the 2012 MS4 Permit and utilized by the RWQCB as the basis for key permit sections, including:
watershed -based permit structure; CIMP flexibility; and utilizing WMPs/BMP-based compliance
options. As part of the 2012 re -issuance process, LWA identified modifications to current programs,
developed the suggested framework and content for the watershed programs, and provided justification
Paradigm Environmental 33
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
to modify the previous permit structure to accommodate the proposed approach via modifiable minimum
control measures and monitoring requirements.
in Diego iii n fll teiiriii IwTl MI,,,,,,, Reevaluatiloin aind Develolpirneint of Cornpillaince
Strategies
G._Yient. County of San Diego
LWA is leading the regulatory and compliance strategy development and interpretation of scientific
studies associated with the reevaluation of the San Diego Bacteria TMDLs. LWA initiated the project in
2013 with the development of a Process Plan that identified the technical and regulatory challenges
associated with the project and a process for working through them with the Copermittees, the San Diego
RWQCB, and other stakeholders, including wastewater and NGOs. The strategic support included
identifying the key aspects of the TMDL to be addressed through a reopener, a process for working with
RWQCB staff to review and consider the technical work, a process for using the technical work to develop
a Basin Plan Amendment for the TMDL, and approaches to coordinate related TMDL, MS4 Permit,
and other applicable regulatory requirements. LWA has supported implementation of the plan through
identifying mechanisms for incorporating the Surfer Health Study, Cost Benefit Analysis, and reference
reach study information into a revised TMDL that focuses on human health risk rather than meeting
Fecal Indicator Bacteria concentrations. The team also provides technical expertise on the interpretation
of the studies and EPA criteria to support potential TMDL and objective modifications.
Recent work has included the development of a potential alternative indicator threshold for the human
marker HF183 that corresponds to the human health risk identified in the Surfer Health Study. The
project involves coordination with the RWQCB on its REC-1 Triennial Review Project and MS4 Permit
renewal to provide consistency across the various projects. This work also drove the development of
related recommendations included in the Report of Waste Discharge.
To support near term compliance with the dry weather bacteria TMDL, LWA is currently providing
direct support to San Diego County and Copermittees in the San Diego River Watershed in developing
a Comprehensive Human Waste Source Reduction Strategy that incorporates results from several
existing programs and relies on prioritized source identification and abatement efforts moving forward.
The approach provides compliance certainty for near term dry weather TMDL deadlines and lays the
foundation for wet weather. The approach in the San Diego River Watershed builds on current
implementation strategies, tailoring them to most effectively address sources of human waste. The
approach is supported by an RAA that reflects the unique characteristics of the compliance approach.
Craftwater 11.::::::.iinguneeining
i& 1
Craftwater will support the Paradigm team in the identification of new
n� ��°°"� e structural project opportunities that will be incorporated in the updated
� n � i n � � a- u n � , i n c .
EWMP/RAA. Craftwater is a California certified Disabled Veteran Owned
Business Enterprise (DVBE) and Micro Business (MB) structured to deliver agile, full -spectrum service
to the stormwater market in California. Their rapidly growing team of associates is skilled at adapting to
the continuously evolving regulatory environment, yet grounded enough to deliver high quality and
readily -constructible designs. Craftwater takes pride in programmatic stewardship — avoiding the pitfalls
of changing teams between the planning, concept, full design, construction, and monitoring phases of
each project. They strive to provide meaningful environmental outcomes with affordable and functional
water infrastructure to California and beyond. Craftwater is poised to serve the USCR WMG by applying
these principles to deliver practical, implementation -oriented EWMP updates.
As trusted strategic advisers and designers, Craftwater's mission is to always act genuinely to advance
the best interests of our clients, the environment, and the state of science by designing real solutions for
Paradigm Environmental 34
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total water cycle management. With over 120 years of combined experience, they bring a unique regional
perspective from actively supporting numerous Southern California agencies (including the vast majority
of municipalities and EWMP groups in LA County, the 11 agencies of the Ventura Countywide
Stormwater Quality Management Program, the City and County of San Diego, Orange County, and
Riverside County), as well as CASQA and agencies in Northern California. Specifically, Craftwater's
engineers are proud to have personally supported the USCR EWMP group develop and implement their
EWMP and LIMP, and recently secured for their municipal clients $135M of Infrastructure Program
funding and $3.5M of Scientific Study funding from the Safe Clean Water Program; overall, their team
led or was involved in almost half of all SCWP funding applications submitted during the first two calls
for projects.
In addition to multiple projects presented in Section 2, the following are key examples of projects led by
LWA that are relevant to the services requested by the USCR EWMP group.
Revised R1 VSGR Watershed Mainagemeint Program aind Cornpillaince Certainty
Specliall Study
G._Yient. Rio Hono/San Gabriel River Water Quality Group
Craftwater's engineers revised the Rio Hondo/San Gabriel River (RH/SGR) Watershed Management
Program (WMP) into a more meaningful, measurable, achievable plan, while reducing implementation
costs by 90% (a $113 long-term savings) and gaining public buy -in. The revised WMP (reWMP) was
developed to (1) improve the accuracy and certainty of the compliance analysis, (2) solicit and incorporate
stakeholder input through an aggressively transparent outreach campaign, and (3) bolster confidence that
investments in the program will yield meaningful and cost-effective water quality improvement. Our team
members developed engineering pre -feasibility studies for five multi -benefit regional projects and a
refined distributed green street strategy customized to current, local water quality conditions.
Emphasizing complete transparency, our team provided technical support during outreach to advocacy
groups, and openly shared our methods and data to foster trust and support. In addition, Craftwater's
engineers closely collaborated with Regional Water Quality Board staff and actively sought real-time
feedback throughout the reWMP development process. This approach of engagement and collaboration
was applauded by the Regional Water Quality Control Board and earned words of support from
environmental advocacy groups; in fact, a peer
review by NRDC's technical consulted concluded �� �� a u lif a pug � III'' to III IIV �t iii �e tall II e�, � til
that our compliance certainty analysis was
"unprecedented" and "unique among the various EVWMIP rEWMP
Watershed Management Programs." Ultimately, � our Craftwater engineers summarized these efforts
������°��
in a public -facing, graphic -heavy planning Wes of
document curated to permittees, practitioners,
(.r Pe¢ ICU ,frlf
irririn:m✓iiniic nirrrmnn,✓nnai �� 0miiuiu iiiniiiii,:u,u,ilia, iuniiur,.iiiruiui nianinrn,�/a
regulators, and advocates/stakeholders.
III,,,,,,, AIR Updates, Adaptive ManagementScreening, aind it '1'llf„) Scientific
Study
G._Yient. Upper LA River WMG, San Gabriel Valley Council of Governments
Beyond conceptualizing and implementing the ULAR EWMP's original control measures, Craftwater is
also actively supporting the Group with optimization of the program to determine how it can be
streamlined and how costs can be reduced. Adaptive management strategies previously recommended by
our engineers were validated by conducting a mini -master plan of a 10-square mile area of the ULAR
watershed to (1) rearticulate the compliance metrics, (2) identify a project -by -project pathway to EWMP
Paradigm Environmental 35
Uvdate Uaaer Santa Clara River EWMP/A: Resvonse File
implementation, and (3) identify potential partners for project co -funding.
Results suggested that the group could reduce their EMWP projects in the
pilot area by 99% (from 350 conceptual EWMP projects to just 3 known
project opportunities). This adaptive management analysis provided the
WMG with critical information for decision making and project planning
through the SCWP, and Craftwater then synthesized the results into the
preSIP Regional Scientific Study application. Our team submitted the
application on behalf of the SGVCOG and WMG and attended SCWP
committee meetings to present and defend the study, which was ultimately
approved by the ULAR and RH WASCs to provide the ULAR WMG with
up to $2.3M of new funding to enhance implementation -oriented watershed
planning. Craftwater is also the prime contractor leading the Permit -required
2021 revisions of the ULAR EWMP (the largest WMG in LA County).
Stoinmwater Master 111:::111ains for „ llh imll iir inn Ilf„I ' in
(_Yient. Cities of Alhambra and Pasadena
The Cities of Alhambra and Pasadena straddle both the RH and Watershed Arai oralinage °
ULAR watersheds, which creates challenges for watershed Network, and PUbIlc Iso
Parcels in Alhambra
planning because runoff exits the Cities from many points along U,pe LA
their borders to various receiving waters. The Cities' divisiongC
between watershed areas also complicates planning for SCW
Program funding. To address these challenges and define a clear��°r
road map to implement the ULAR EWMP the Cities separately
initiated development of thoughtfully crafted stormwater master !
_,.
plans. The plans will augment and articulate the Cities recipes �
for compliance by identifying the most cost-effective project.,
0 ortunities evaluatingthem as a system at the watershed scale
and customizing project recommendations to the Cities' needs
and values. Results will grant the Cities strategic positions to ,ra
approach other upstream or downstream jurisdictions about co -funding projects (either independently,
or through the SCW Regional Program), and will demonstrate how projects can potentially be
piggybacked onto other concurrent City programs. Craftwater has already completed and submitted for
SCWP funding two feasibility studies for high -impact, multi -benefit projects identified through these
efforts.
Venturan III° iii in 111 II:::Iirojeat Identification and Concepts
(_Yient. Ventura County WPD and Countywide Stormwater Quality Management Program
The Ventura Countywide Stormwater Quality Management Program (VCWQMP) is charged with protecting
water resources and proposing strategies to comply with water quality regulations throughout the 2,208-square-
miles and 5 major watersheds of Ventura County (including the lower Santa Clara River). This robust program
faces uncertainties and challenges in the face of impending updates to the MS4 Permit that will require
development of new Watershed Management Programs. Craftwater proactively developed a unique, engineer -
informed, programmatic approach to better understand what stormwater project opportunities are available and
how far those projects might advance the Permittees towards compliance under the new permit.
Ventura County's hydrologic, environmental, and political setting drastically differs from their neighboring
county... and so, too, must their compliance strategy and stormwater water quality projects. Craftwater is
therefore taking a fresh look at their watersheds to augment known opportunities from their Municipal
Stormwater Resources Plan with new projects. The identification of new opportunities was conducted using
Paradigm Environmental 36
Uvdate Uaaer Santa Clara River EWMP/ A: Resvonse File
innovative desktop geomatic analyses that enabled rapid countywide reconnaissance to identify the best
potential projects. Thousands ofprojects were then individually reviewed by engineers for feasibility, and the
remaining candidates were screened through interviews with key municipal staff at each of the eleven MS4
permittees. Preliminary conceptual designs were then developed for the top eleven projects with the remaining
top tier projects ready to be more fully developed as needed moving forward.
Paradigm Environmental 37
Uodate Uooer Santa Clara River EWMP/RAA: Resoonse File
A III .......... rAO11I III "I lllZESUIIMIII:..:..:..:,S
Paradigm Environmental 38
iiii iin I
Principal Hydrologist
Master of Science, Civil and Environmental Engineering, 2003, University of California -Davis
Master of Science., Hydrologic Science, 2003, University of California -Davis
Bachelor of Science, Physics, 2000, Western Kentucky University
Bachelor of Science, Mathematics, 2000, Western Kentucky University
F�' IFIQNMS
Professional Hydrologist (Water Quality), American Institute of Hydrology
Afk, .a.'.
allw wm :I�� 4 S ILY'V I I 4 I......�
Dustin has extensive experience in watershed hydrology, pollutant fate and transport, and identification of pollutant
sources. His understanding of both the science and policy of Clean Water Act issues has enabled him to lead some of
the most challenging water quality projects in the U.S. Dustin has led numerous innovative stormwater
implementation plans that leveraged state-of-the-art tools such as continuous simulation and genetic optimization to
maximize cost -benefit. Dustin is one of the leading experts regarding RAAs in California, having closely worked with
permittees, RWQCBs, the SWRCB, and NGOs. He also has nationally -recognized expertise related to the bacteria
contamination that causes beach closures and freshwater impairments across the U.S. — he has led numerous cutting -
edge studies (including microbial source tracking and quantitative microbial risk assessment) to support
implementation plans to reduce bacteria levels in stormwater and/or develop alternative water quality objectives. His
unique combination of experience with implementation planning and bacteria contamination is an asset to permittees
developing water quality improvement plans where bacteria is a top pollutant -of -concern. Dustin's ability to
effectively communicate technical subject matter has led to multiple agencies relying on him to present and discuss
their stormwater compliance plans with their mayors, city managers, and boards of public works.
Ballona Creek and Upper Los Angeles River Enhanced Watershed Management Plans, City of Los Angeles,
CA — The Los Angeles County MS4 Permit includes an optional compliance path where EWMPs can be used to
facilitate BMP-based compliance. The EWMPs include requirements to incorporate innovative green infrastructure
BMPs along with regional BMPs to retain the 851h percentile, 24-hour storm event. The EWMP effort includes
identification of water quality priorities, selection of BMPs to improve water quality and a reasonable assurance
analysis that uses watershed and BMP models to demonstrate BMPs will result in attainment of Permit limitations.
Dustin led the RAA for the Ballona Creek and Upper LA River EWMPs. Dustin was instrumental in developing
innovative critical conditions for bacteria compliance. Dustin led numerous stakeholder meetings to support
development of the EWMP and led components of a public workshop to solicit feedback from the public and
interested agencies. He also conducted one-on-one meetings with environmental groups and regulatory agencies to
foster support for the EWMP approach.
Multiple EWMPs and WMPs, Los Angeles County, CA — Paradigm led the modeling and implementation
planning for multiple EWMPs and WMPs. Watershed group clients included the Upper San Gabriel River EWMP
Group, Upper Santa Clara River, Ballona Creek, Dominguez Channel, Malibu Creek Watershed, Lower LA River,
Lower San Gabriel River, Los Cerritos Channel, and East San Gabriel Valley. Dustin provided expertise on a range of
pollutants, including metals, bacteria, nutrients, and toxics. Dustin is regarded as a leading expert in the LA region
regarding EWMP development and RAAs and is highly respected by Regional Board staff and NGOs.
Safe Clean Water Scoring Module, Los Angeles County, CA. Dustin served as project manager in the
development of a web -based tool to support the implementation of the LA County Safe Clean Water Program's
funding initiative for stormwater improvement projects (Measure W). The tool allows cities to enter information on
candidate stormwater BMP projects, and calculate scores associated with project effectiveness and other sustainable
and multiple -benefit metrics. The system utilizes model capabilities from the County's WMMS, which is used to
estimate volume and pollutant load reductions resulting from BMP runoff capture, and standardizes approaches
county -wide for evaluation of BMP project benefits and performance.
Dustin Bambic, PH
Paradigm Environmental, Inc.
lA/1c,
PAR�c
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Master of Science, Civil and Environmental Engineering, 1999, University of Virginia
Bachelor of Science, Civil and Environmental Engineering, 1997, University of Virginia
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John has more than 20 years of experience developing and applying hydrologic and water quality models, with a focus
on public domain models typically used to support water resources management and regulations and subject to peer
review (e.g., HSPF, LSPC, SWMM, SWAT, CE-QUAL-W2, QUAL2E/2K, SUSTAIN). He has an in-depth
understanding of meteorological and hydrological processes and interactions, watershed and stormwater management
and control measures, water quality, and pollutant source characterization. John led the development of EPA's LSPC
model for 12 years and was responsible for designing system architecture and developing algorithms for most of the
core LSPC modules (LSPC served as the model support most TMDLs in the Los Angeles Regions). He also led
development of EPA's ground -breaking, publicly available modeling tool SUSTAIN, which provides linkages to
SWMM, HSPF, and LSPC, and dynamic simulation and cost -optimization of stormwater BMPs to support stormwater
and TMDL implementation planning. He served as the modeling lead in the development of Los Angeles County's
original WMMS and recent updates for WMMS 2.0, which includes linkages of LSPC and SUSTAIN and utilities tailored
for the Los Angeles Region to support RAAs. He served as the modeling lead for successful completion of ten WMPs
and EWMPs for the largest and most complex watersheds in Los Angeles County addressing multiple pollutants,
including bacteria, metals, toxicity, nutrients, and others. He's proficient at engineering highly -effective graphical and
tabular displays for journal/report- and web -based publication media, and has published his work in high -impact peer -
reviewed journals (e.g. Water Resources Research, Water Research, Climatic Change). He also has a reputation as an
effective communicator and has conducted numerous nationally -attended workshops and watershed modeling training
courses.
C II I I II'wm A IF C 1 IIC n II y 16 � II : II wm II IL........ II I II
Los Angeles County Watershed Management Modeling System (WMMS 2.0). John is serving as the technical
lead supporting the LACFCD in the development of WMMS 2.0 for all of LA County's watersheds WMMS 2.0 builds
upon a the previous WMMS modeling system originally developed by Paradigm staff (used for previous RAAs), and
adds new capabilities for improved accuracy for simulation of hydrology, water quality, and BMP performance. The
system includes cost -optimization techniques for determination of the most cost-effective BMP designs to capture and
treat stormwater and assist with implementation planning. WMMS 2.0 will serve as the primary tool for LACFCD in
the updates of RAAs comply with emerging MS4 Permit requirements, and the evaluation of BMP performance to
assist in conceptual planning and design.
Enhanced Watershed Management Plans (EWMPs), Los Angeles, CA. The County of Los Angeles, City of Los
Angeles, and multiple additional cities in the Los Angeles Region developed Enhanced Watershed Management Plans
(EWMPs) for Los Angeles River, San Gabriel River, Ballona Creek, Dominguez Channel, Santa Clara River, and Malibu
Creek to address MS4 Permit requirements. John served as the modeling lead for these EWMPs. The models were
unique in that they started with the WMMS, but further refined to represent jurisdictional boundaries and intermediate
instream assessment points for evaluating critical flows and pollutant loads. The approach coupled a watershed model
(LSPC) with a BMP model (SUSTAIN) to simulate baseline conditions and predict the effects of management practices
on receiving water quality and flows. Compliance with multiple TMDLs were also addressed by the modeling including
sedimentation, peak flow erosional impacts, and various pollutants. John provided key input to a region -wide committee
meeting on modeling that shaped the RWQCB requirements for the modeling and calibration criteria.
John Riverson, Jr.
Paradigm Environmental, Inc.
Steve III ir1
III I I���l,. ;,IIII
i1 I 1 a
Master of Science, Environmental Engineering, 1999, University of North Carolina at Chapel Hill
Bachelor of Science, Civil Engineering, 1997, University of North Carolina at Charlotte
IFIQNMS
Professional Engineer, California
allw wm 111 :���A 111 SJ V1 VIA
Steve has more than 20 years of experience supporting federal, state, and municipal clients in the areas of regulatory
support, modeling, emerging stormwater engineering practices, and watershed and infrastructure planning. Steve has
been working on LA region projects for a majority of his career. His technical background includes hydrology and
hydraulic modeling, city- and county -wide infrastructure planning, watershed planning, water quality regulations and
negotiations, and engineering analysis of projects that meet regulatory and watershed planning goals. He has developed
innovative approaches to strategic and cost-effective planning of stormwater capture projects to meet TMDL and
NPDES permit requirements, including project management of advanced modeling systems to identify cost-effective
watershed and engineering strategies to reduce stormwater impacts. Steve led the development of the LA County
WMMS 2.0, a publicly available county -wide modeling and cost -optimization system built for the watersheds of Los
Angeles County to simulate hydrology and pollutant loading and support watershed and stormwater project planning.
Steve has managed leading -edge modeling efforts throughout California, including development of the LA County's
WMMS, the modeling system supporting RAAs and the assessment of load reduction goals to meet applicable TMDLs
and WQBELs in the region. He has also supported the development of numerous RAAs supporting WMPs and
EWMPs throughout the LA Region, including the Upper LA River, Los Cerritos Channel, Lower San Gabriel River,
Dominguez Channel, Upper San Gabriel River, Ballona Creek, Malibu Creek, and Upper Santa Clara River.
Los Angeles County Watershed Management Modeling System (WMMS 2.0). Steve is serving as project manager
supporting the LA County Department of Public Works in the development of WMMS 2.0 for all of LA County's
watersheds. WMMS 2.0 builds upon a previous modeling system originally developed by Paradigm staff, and adds new
capabilities for improved accuracy for simulation of hydrology, water quality, and BMP performance. The system
includes cost -optimization techniques for determination of the most cost-effective BMP designs to capture and treat
stormwater and assist with implementation planning. WMMS 2.0 will serve as the primary tool for LACDPW in the
development of Watershed Management Programs to comply with LA County NPDES permit requirements, and the
evaluation of BMP performance to assist in conceptual planning and design.
Enhanced Watershed Management Plans for Dominguez Channel, Ballona Creek, and Upper LA River.
Paradigm served as the lead in the development of RAAs supporting EWMPs for Dominguez Channel, Upper LA
River, and Ballona Creek, principal authors of the EWMPs for Upper LA River and Ballona Creek, and overall lead of
the Upper LA River EWMP. Steve served as the technical lead in the RAA for Dominguez Channel to quantitatively
demonstrate that planned BMPs provide compliance with TMDLs and WQBELs. Based on his experience supporting
EPA on the development of the Dominguez Channel and Harbor Waters Toxicity TMDLs, he developed approaches
for quantifying load reductions that met TMDL wasteload allocations and considered new methods for quantifying
these loads based on critical conditions. He also supported negotiations with the RWQCB regarding key assumptions
that greatly impacted strategies and overall cost, including methods for representing nonstructural BMPs.
Reasonable Assurance Analyses Supporting Watershed Management Programs for Lower LA River, Los
Cerritos Channel, and Lower San Gabriel River Watersheds. Steve served as the technical lead of the RAAs
supporting the WMPs for the LLAR, LSGR, and LCC watersheds. He developed the technical framework for
determining existing pollutant loads, establishing critical conditions consistent with the RWQCB guidelines for
conducting RAAs, and determining necessary load reductions to meet MS4 Permit WQBELs and TMDL wasteload
allocations. He led efforts to develop the WMMS application used to perform the RAA, including the model
configuration of structural and nonstructural BMPs, and methods for cost -optimization of BMPs to meet numeric goals.
Steve Carter, PE
Paradigm Environmental, Inc.
IIII
Water Resources Engineer, it
A.,..,_
III I I�
,
Master of Science, Hydrology, 2016, Colorado School of Mines
Bachelor of Science, Geology, 2014, California State Polytechnic University, Pomona
Bachelor of Arts, Science, Technology & Society, 2014, California State Polytechnic University, Pomona
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Ryan Edgley is a Water Resources Engineer and Hydrologist who specializes in water resources management,
stormwater modeling, and BMP feasibility and implementation. His areas of focus include hydrologic and hydraulic
(H&H) modeling, 2D watershed modeling, geospatial and data analysis, and strategic watershed planning. Ryan is
experienced using several models, including PC-SWMM, EPA-SWMM, EPA SUSTAIN, LSPC, WSPG, and HEC-
HMS. Ryan leverages his broad experience with H&H models, geographic information systems (GIS), and matrix
manipulation software (e.g., MATLAB, R) in supporting BMP implementation strategies. These strategies include novel
BMP identification processes, feasibility analysis, two-tier model optimization, and project implementation
prioritization. Results from Ryan's analyses are integrated into a broader stormwater compliance framework to enable
municipalities to demonstrate progress towards meeting water quality and flood management targets.
Los Angeles County Watershed Management Modeling System 2.0 (WMMS 2.0). Ryan is serving as deputy
project manager supporting the LACDPW in the development of WMMS 2.0 for the region's coastal watersheds.
WMMS 2.0 builds upon the previous modeling system (WMMS 1.0) originally developed by Paradigm staff, and adds
new capabilities for improved accuracy for simulation of hydrology, water quality, and BMP performance. As deputy
project manager, Ryan coordinated all efforts across the project including two-tier model optimization development
(using the SUSTAIN model), hydrology and water quality model calibrations (using the LSPC model), technical
document writing, and task management to streamline the overall process and provide deliverables that exceed client
expectations.
Los Angeles County Green Street Master Plan, LA County Department of Public Works (LACDPW), CA. The
Green Street Master Plan establishes the County's approach to NPDES and EWMP compliance in terms of leveraging
available ROW to capture stormwater and provide multiple additional benefits. The Master Plan identified over 100
green street sites for conceptual design and detailed design of 5 signature green street projects. Ryan developed the
optimization model structure to determine optimal project implementation sizes with respect to cost and pollutant load
reduction for each identified green street. This approach automated 100,000's of SUSTAIN model runs resulting in
maximized scores for the Safe Clean Water Program. Results were organized in a factsheet-style format to convey model
output in a concise and legible format that facilitated implementation decision -making.
San Diego River Storm Water Capture Concepts, City of San Diego Storm Water Division and San Diego
Public Utilities Dept. - Long -Range Planning and Water Resources Division (e.xperience froynprevious e�nnployer�.
Conceptual design of regional BMP site in Mission Valley, within the San Diego River. Ryan developed an SUSTAIN
model to identify the most cost-effective BMP size, injection rate, and diversion rate to the conceptual BMP. Results
indicated the best BMP configuration to balance the region's water drivers: improve water quality, flood control, and
local water supply. The analysis also included identification and detailing of the legal, regulatory, permitting, and
funding obstacles that exist for a project of this magnitude. Results enabled the City of San Diego to move forward on
conceptual design and begin to navigate through the aforementioned hurdles before implementation of the regional
BMP.
Green Street Implementation Plan for Dominguez Channel Watershed Management Area. Led the technical
development of a green street implementation master plan for the Watershed Management Area in the Dominguez
Channel watershed near Los Angeles, CA. Ryan's role included high -resolution geospatial data (e.g. LiDAR) analysis
for characterization for distributed BMPs. The SUSTAIN model was used to evaluate all BMP opportunities at the
inlet -scale and optimize their size for cost and pollutant removal performance by simulating millions of combination
of green streets across the project area. Results indicated which opportunities were most cost-effective and able to
meet regional water quality goals.
Ryan Edgley
Paradigm Environmental, Inc.
EDUCATION
M.S., Civil Engineering -
Environmental Engineering
and Science, 1996, Stanford
University, Stanford
B.S., Earth Systems -
Environmental Technology,
1995, Stanford University,
Stanford
REGISTRATIONS
CA E.I.T. XE100093
YEARS OF EXPERIENCE
With LWA: 23
With other Firms: 1
PROFESSIONAL
AFFILIATIONS
Member, California
Stormwater Quality
Association
Stormwater Representative,
Stakeholder Advisory Group
for Statewide
Biointegrity/Biostimulatory
Plan Development
President
Ms. Desai provides regulatory assistance, watershed management, and TMDL
development and implementation support to clients throughout California. Ms.
Desai is primarily responsible for overseeing LWA's TMDL and regulatory
assistance work in Southern California, including NPDES permit assistance;
regulation and policy review and comment; TMDL review, development and
implementation; stormwater permit development and implementation; agricultural
order assistance; and watershed management. Ms. Desai specializes in
facilitating coordination between municipal agencies, stakeholder groups, and
regulatory agencies to address complex water resource management issues.
Upper Santa Clara River Enhanced Watershed Management Plan (EWMP) for City of
Santa Clarita, Los Angeles County, and Los Angeles County Flood Control District, Santa
Clarita, CA. 2013-2015.
Project manager responsible the development of an Enhanced Watershed
Management Plan (EWMP) and Coordinated Integrated Monitoring Plan (CIMP)
for the Upper Santa Clara River Watershed. The EWMP and CIMP are required
for compliance with the 2012 Los Angeles County MS4 Permit. The multi -year
project includes the identification of water quality priorities for the planning area,
evaluation of control measures to address the identified priorities and demonstrate
implementation of the control measures will meet permit requirements, and
preparation of a coordinated monitoring plan to characterize stormwater and non-
stormwater discharges and the receiving water. Responsible for facilitating the
stakeholder process, coordinating with the Los Angeles Regional Water Quality
Control Board, and managing all of the technical work to develop an approvable
EWMP Work Plan, EWMP and CIMP.
San Diego County Bacteria TMDL Implementation Assistance, San Diego County, CA.
2013 to Present.
Project manager responsible for supporting the City and County of San Diego and
Orange County with strategic planning for implementation of the Indicator Bacteria,
Project I — Twenty Beaches and Creeks in the San Diego Region (Bacteria TMDL).
Work included the development of a process plan that outlines the process for
working with the San Diego Regional Water Quality Control Board to successfully
incorporate the results of special studies into revised TMDL provisions. The
strategic support included identifying the key aspects of the TMDL to be
addressed through a reopener, a process for working with the Regional Board staff
to review and consider the technical work, a process for using the technical work
to develop a Basin Plan Amendment for the Bacteria TMDL, and approaches to
coordinate other related TMDL, permit and other applicable regulatory
requirements. Developed a revised TMDL technical report that focusses on
reducing human health risk by addressing human sources of bacteria rather than
only reducing fecal indicator bacteria concentrations. Also prepared modified
permit language to incorporate the proposed approach into the MS4 permit.
Currently supporting two watershed groups with development of a plan for interim
bacteria TMDL permit compliance that focusses on reducing risk by addressing
human sources of bacteria.
Vice ....President
EDUCATION
Mr. Minton has supported clients with negotiations on National Pollutant Discharge
M.S., Environmental Science &
Elimination System (NPDES) permits for both stormwater and wastewater,
Management, 2002, University
managed, led development of Watershed Management Programs (WMPs) and
of California, Bren School of
Coordinated Integrated Monitoring Programs (CIMPs), developed and
Environmental Science and
implemented Total Maximum Daily Load (TMDL) implementation planning
Management, Santa Barbara
processes and monitoring programs, metals and bacteria special studies.
B.S., Geology, 1998, University
of Washington, Seattle
City of Malibu: As -Needed Regulatory Support.
Project Manager for the review of the 2019/20 State Water Resources Control
YEARS OF EXPERIENCE
Board's Order related to the approval of WMPs pursuant to the Los Angeles
Regional Water Quality Control Board (Regional Board) Order R4-2012-0175.
With LWA: 18
With other Firms: 2
Developed comments focused on demonstrating the City's EWMP adequately
provided information to support deemed compliance status for the Santa Monica
Bay (SMB) Bacteria TMDL and demonstrating how the State Board inappropriately
assessed the City's ASBS Compliance Plan. Subsequently, LWA reviewed the
revised draft order and provided an update to the City regarding the implications of
the changes. Several components of the Order were revised based on the
comments developed by LWA. Additionally, led the evaluation of water quality data
to assess exceedances of limitations and reviews of the ASBS Compliance Plan
and trash implementation efforts. Provided LWA provided options to address
potential future violations, potential issues with the ASBS Compliance Plan, and
improving the City's future compliance situation.
Enhanced WMP/CIMP Development.
Led the completion of the CIMPs for the Upper Los Angeles (LA) River and
Ballona Creek (BC). CIMP development included identifying cost effective
approaches to meeting MS4 Permit and TMDL monitoring requirements,
identification of receiving water and outfall monitoring locations, and a schedule for
implementation. In addition to leading these two watersheds, CIMP development
support was provided to an additional six groups and a number of other groups
that adopted approaches from the City of LA -led CIMPs, including the Dominguez
Channel and SMB J2/3 watersheds. Led LWA Team members on the
development of key components of the ULAR and BC EWMPs. Led the
identification of water quality priorities in these two watersheds, including
compiling over 200,000 data records from multiple agencies and conducting a
robust data analysis to evaluate exceedances of applicable water quality
standards. The categorization approach for incorporating the results into the
EWMP was utilized not only in the City -led EWMPs, but was adopted for use in
other EWMPs throughout the County. Provided presentations at multiple public
workshops, supported negotiations with Regional Board staff, meetings with
NGOs, and as -needed presentations to City management. Currently managing the
updates to WMPs for BC, SMB J2/3, Malibu Creek, and Alamitos Bay.
City of Los Angeles Sanitation (LASAN) Watershed Protection Division (WPD):
Monitoring, Reporting, Regulatory and Study Support.
Project Manager for over 10 years on multiple WPD on -call services contracts
related to addressing technical and regulatory challenges associated with TMDLs,
MS4 Permit, water quality criteria, and monitoring. Responsibilities include
identifying developing and implementing project approaches and managing
individual project efforts.
Paul Hartman
LV)
Associa
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EDUCATION
Mr. Hartman is an Associate Scientist serving a Project Manager in stormwater
B.S., Biology, 1995, James
and watershed management, and as the Regional Office Manager for LWA's San
Madison University,
Diego Office. His prior experience managing local stormwater programs, followed
Harrisonburg, VA
by eight years serving these same programs as a consultant, arms him with
valuable expertise in developing water quality programs to address regulations
REGISTRATIONS
that are focused on pragmatic, cost effective, and compliant solutions. His
Laboratory Analyst, Grade II,
experience includes development and implementation of jurisdictional and
California Water Environment
watershed programs, TMDL development and implementation related to bacteria
Association
and nutrients, and implementation of programs to comply with new regulatory
policies (e.g., Statewide Trash Amendments).
YEARS OF EXPERIENCE
With LWA: 8
Enhanced Watershed Management Plan, Upper Santa Clara River Watershed, Santa
Within the Profession: 22
Clarita, CA. 2014-2015.
Developed a detailed EWMP work plan for the Upper Santa Clara River
PROFESSIONAL
Watershed, providing direction forward in the development of the EWMP.
AFFILIATIONS
Developed and applied unique methods to quantify effectiveness of non-structural
Member, California stormwater
programs at addressing priority pollutants; demonstrated that new and enhanced
Quality Association
programs would meet load reductions projected within the EWMP.
Member, California Water
Comprehensive Human Waste Source Reduction Strategy, San Diego River
Environment Association
Watershed Management Area, County of San Diego, CA. 2020 — Present.
Member, Water Environment
Project Manager leading the development and implementation of a
Federation
Comprehensive Human Waste Source Reduction Strategy (Strategy) that provides
reasonable assurance of attainment of interim (and potentially final) dry weather
compliance targets for the Bacteria TMDL. The Strategy brings together data and
analysis from multiple monitoring programs and special studies to provide a
comprehensive evaluation of the water quality and risk to recreators. The
approach includes evaluation and assessment of traditional water quality
indicators and human biomarker data (i.e., HF183), moving the watershed towards
a more risk -based approach to implementation and compliance. The Strategy is
focused on three key areas: demonstrating attainment of TMDL targets in
receiving waters and at MS4 outfalls based on various water quality/quantity data
(e.g., fecal indicator bacteria, flow, HF183), implementation of monitoring
programs to identify areas of the watershed where human biomarkers are present,
and updates to implementation, investigation, and abatement strategies to best
address potential sources of human waste. The Strategy provides reasonable
assurance to demonstrate attainment of interim dry weather compliance with the
Bacteria TMDL.
Development and Implementation of Strategies to Evaluate and Address SHELL and REC
Beneficial Uses in Agua Hedionda Lagoon, County of San Diego, CA. 2020 — Present.
Project Manager leading the development and implementation of work plans,
Water Quality Improvement Plan (WQIP) updates, and monitoring frameworks to
address concerns from the Regional Water Board and public related to bacteria
from the watershed potentially affecting shellfish harvesting and recreational
beneficial uses in Agua Hedionda Lagoon. The work plan identified key
assessments to support prioritization of SHELL and REC beneficial uses and to
support discussions with Regional Board staff in response to comments on the
WQIP Annual Reports. A sequential phased approach to implementation was
developed in conjunction with the Regional Water Board and stakeholders that
consists of an evaluation of beneficial uses related to bacteria, source
characterization within the Lagoon, and source investigations/elimination within the
watershed. Monitoring frameworks specific to SHELL and REC beneficial uses
were recently developed and are under review with the Regional Board.
e n g i n e e r i n g, i n c
Experience I invinal
EDUCATION
Mr. Helmle has overseen hundreds of large and small water resources projects
and has served as program manager or principal -in -charge of several of the
M.S., Civil Engineering,
largest municipal on -call stormwater-focused contracts in the country (including
Environmental Fluid
Mechanics/Hydrology, Cornell
for the counties of Los Angeles, Orange, and Riverside and the cities of Los
University, 2005
Angeles and San Diego) and has been published in various civil engineering
magazines. His responsibilities in these roles has afforded him the unique
g and
B.S., Environmental
Environmental Science,
Science,
opportunity to explore a broad spectrum of stormwater-related issues, ranging
University of Notre Dame, 1997
from strategic planning to design and implementation. Examples of his project
leadership include numerous green infrastructure master planning efforts and
AREA OF EXPERTISE
more than 100 regional -scale green infrastructure retrofit design or pre -design
projects. He is especially passionate about finding innovative solutions to the
Green infrastructure
challenging prospect of retrofitting existing urban landscapes and infrastructure
Strategic planning
to meet the compliance, water resiliency, and/or runoff management needs of
Stormwater master planning
municipal agencies. He continually pushes the envelope to improve his team's
methods by inventing new processes, templates, and tools for creating effective
BMP planning and engineering
and robust design concepts and modeling approaches for stormwater capture
Integrated water resource
projects.
management
Low impact development
Relevant Experience
........................................................................................................................................................................................................................................................................................................................................................................
BMP modeling
Revised Enhanced Watershed Management Program, Ric Hondo/San Gabriel River Water
Hydromodification management
QualityGrcup, 10/2017-Present Facilitating collaboration between Cities, County,
regulators, and environmental NGOs to revise current Enhanced Watershed Management
Stormwater management tool
Program (EWMP) to focus on a strategic and realistic approach towards improving water
development
quality. Developing and assessing multi -benefit regional project concepts to reduce
Infrastructure assessment
watershed -wide compliance costs by over 90 percent ($900M savings) while augmenting
Military civil engineering
local water supply. Performing range of compliance analyses and watershed modeling to
evaluate risks associated with the spectrum of compliance metrics and methods.
Hydrology and hydraulics
Developing public -facing, publication -quality document clearly summarizing EWMP
Water quality modeling
revisions in a digestible format. Building buy -in and consensus among environmental
Hydrodynamic modeling
NGOs through transparency and engagement.
Guidance development
Upper Santa Clara Enhanced Watershed Management Program (EWMP). City of Santa
Clarita (as sub to Larry Walker Associates). August 2013 - August 2015. Project Manager
REGISTRATIONS/
to support the development of watershed modeling for two jurisdictions to develop an
AFFILIATIONS
EWMP for the Upper Santa Clara watershed management group to provide a collaborative
2006 Professional Engineer
and prescriptive strategy for compliance with multiple TMDLs while also identifying
(Civil), State of California (69525)
opportunities for enhanced, interagency projects promoting water quality improvement,
water supply augmentation, and community services/co-benefits.
FEARS OF EXPERIENCE
Watershed EngineeringOn-Call Contract, Countyof LosAngeles. Principal in Charge for $6M,
22years
3-year as -needed contract to support the county with wide-ranging watershed services,
including the design of regional BMPs. Work for the County was recognized at the national
CONTACT
and regional level as precedent -setting, especially in terms of applying technical innovation
to solve emerging stormwater problems. Signature projects that Mr. Helmle has personally
Phone:
led include (1) the Multi -Agency Collaborative Stormcatcher Project, which demonstrated
805-729-0943
the feasibility of leveraging parcel -based real time control systems to capture runoff and
Email:
augment water supplies; (2) the Lower Los Angeles River Revitalization Plan, which
emphasizes a watershed -based approach to revitalizing a 19-mile long, two-mile wide reach
Chad.helmle@craftwaterinc.com
of the LA River corridor; and (3) multiple park -based regional stormwater capture BMP
Linkedln:
designs intended to meet pressing TMDL compliance needs.
linkedin.com/in/chad-helmle-
588ahl�
e n g I IIne B r i n g I n c
Experience Suinvinairy
Brad
Senior Wardyinski, PE
Project
Brad Wardynski is a Water Resources Engineer with almost a decade of experience in the
fields of urban hydrology and green infrastructure. Mr. Wardynski hasworked with influential
industry experts on a variety of projects spanning the full scope of stormwater program
management, including regulatory support and reporting, watershed planning, modeling,
feasibility and design, monitoring, outreach, and technical guidance. His projects and
research have directly impacted stormwater control measure design guidance and he has
collaborated with academics to present these findings nationwide to the design and
regulatory community, including green infrastructure design, construction, and
maintenance trainings offered at international conferences and symposia. His specific
areas of expertise include current knowledge of stormwater control measure system
performance and unit processes, formulation and adaptation of targeted watershed plans
for regulatory compliance (including real-time control systems), and development of web -
based applications for data management and decision support.
Relevant Experience
Development of EWMPs, Upper LA River, Upper Santa Clara River, Upper San Gabriel River
Watershed Management Groups, 8/2014-2/2016. Played a key role in developing the
EWMPs for four watershed management groups across greater LA County. Efforts included
composition of fact sheets and presentations with conceptual BMP diagrams; compilation,
analysis, and georeferencing of existing and planned BMPs across the watersheds;
identification, characterization, modeling, and optimization of potential network of regional
and green infrastructure projects; prioritization and conceptual design of multi -benefit
regional stormwater projects, including options for local water supply augmentation
through capture and use; targeted project scheduling to meet specific compliance
milestones; development of life -cycle cost estimates for program implementation; and
communication of findings to City and County managers and Regional Board staff.
Adaptive Watershed Management Screening and Safe, Clean Water Scientific Study
Application, Upper Los Angeles River and Dominguez Channel Watershed Management
Groups, 7/2019-12/2019. Conducted study to recommend strategic, watershed -wide
adaptations to reduce implementation costs by 50-75% and improve actionability of
Enhanced Watershed Management Programs. Included project -by -project master planning
of representative subwatershed areas to demonstrate achievable compliance pathways by
reducing number of prescribed projects by two orders of magnitude (from hundreds of
projects to single digits). Developed, submitted, and presented grant applications for over
$2M of Regional Scientific Study funding to the Safe, Clean Water Program.
4
M.S., Biological and Agricultural
Engineering, North Carolina
State University, 2012
B.S., Biosystems Engineering,
Michigan State University, 2010
AREA OF EXPERTISE
Watershed Hydrology and
Stormwater Modeling
Multi -benefit Strategic Planning
Data Analysis, Visualization, and
Web Tool Development
Watershed Runoff Quality
Targeted Water Quality
Implementation Strategies
Watershed Management Plan
Development
BMP Modeling, Evaluation, and
Design
Real -Time Controls Analysis
REGISTRATIONS/
AFFILIATIONS
CA, No. 84989, 2015
Member, American Society of
Civil Engineers
Association
YEARS OF EXPERIENCE
Canyon Country Park Stormwater BMP Concept, City of Santa Clarite, CA, 1/2016-3/2016.
Facilitated conceptual design, modeling, and compliance analysis for regional stormwater 10 years
capture project. Optimized project configuration to maximize receiving water quality while
providing opportunities for improved flood management.
Revised Enhanced Watershed Management Program, Rio Hondo/San Gabriel River Water
Quality Group, 10/2017-Present Facilitating collaboration between Cities, County, and
regulators to revise current Enhanced Watershed Management Program (EWMP) to focus
on a strategic and realistic approach towards improving water quality. Developing and
assessing multi -benefit regional project concepts to reduce watershed -wide compliance
costs while augmenting local water supply. Performing range of compliance analyses and
watershed modeling to evaluate risks associated with the spectrum of compliance metrics
and methods. Developing public -facing, publication -quality document clearly summarizing
EWMP revisions in a digestible format.
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Experience Suinvinairy
Oliver Galang has more than 27 years of professional engineering experience in planning,
design, construction, and program management of multi -million -dollar municipal capital
improvement projects, specifically in water resources and stormwater infrastructure
throughout southern California. He has extensive experience in the areas of water
resources, stormwater and urban runoff management, water quality monitoring programs,
flood management, and various types of green infrastructure. He is currently leading
Craftwater Engineering's Water Resources services in the Los Angeles County area.
Highlights of Oliver's career also include service as the Head of the Los Angeles River
Watershed for the Los Angeles County Department of Public Works. His responsibilities
included the planning of multi -use, multi -benefit projects, along the Los Angeles River. He
served as the lead for the Water Quality Monitoring Programs for Los Angeles County
Department of Public Works, including Los Angeles County Flood Control District (LACFCD's)
National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Monitoring
Program. He also managed the operations of the LACFCD flood control and water
conservation system, which consisted of 14 reservoirs, 500 miles of conveyance channels,
and 27 groundwater recharge facilities.
Relevant Experience
Upper Santa Clara River (USCR) Coordinated Integrated Monitoring Program, Santa Clarita,
California
Project Manager. This project consists of the implementation of the monitoring
program for the City of Santa Clarita and the County of Los Angeles within the Upper
Santa Clara River Watershed. The CIMP includes dry- and wet -weather sampling of
receiving water and outfall locations to address the requirements of the Regional
MS4 Permit for the Los Angeles County, including TMDL limits. The program includes
sample collection, laboratory analyses, and reporting. He was responsible for leading
the project team.
Canyon Country Community Center Stormwater Capture Project Concept, Santa Clarita,
California
Project Manager. This project consists of the development of a stormwater capture
facility for the City of Santa Clarita. The stormwater capture facility is intended to be
implemented as part of the proposed developments for the Community Center. The
project concept included a subsurface stormwater capture facility and a relief drain to
address flooding along Sierra Highway. He was responsible for conceptual layouts
and leading the project team.
Culver Boulevard Storm Water Capture and Filtration Project, Culver City, California
Project Manager. This project consists of the design and construction of a regional
stormwater BMP Project along Culver Boulevard within the median between
Sepulveda Boulevard and Elenda Avenue. The project consists of a storm drain
diversion structure, 8-acre-foot underground storage facility and pump station to the
return flow to the storm drain. The project is intended to address Culver City's water
quality actions stated under the Ballona Creek Enhanced Watershed Management
Programs. Oliver led the project development team and coordinated these efforts
with the City Project Team.
Bellflower Water Capture Project at Caruthers Park, Phase I and II, Bellflower, California
Project Manager. This project consists of the design and construction of a regional
stormwater BMP Project at the City of Bellflower's Caruthers Park. The project
consists of a storm drain diversion structure, 7.5-acre-foot underground infiltration
and storage facility, and pump station to the return flow to the storm drain. The
project is intended to address the City of Bellflower's water quality actions stated
under the Los Cerritos Channel Watershed and the Upper San Gabriel River Enhanced
Watershed Management Programs. Oliver is leading the project development team
and coordinating these efforts with the City Project Team and the LACFCD.
l
B.S., Civil Engineering, California
State University, Fullerton, 1993
Engineering Management
Graduate Studies, California
State Polytechnic University,
Pomona, 2005
AREA OF EXPERTISE
Water Resources, Storm water
Compliance, Water Quality
Monitoring Programs, BMP
Design, Drainage Design, Flood
Control, and Groundwater
Recharge
REGISTRATIONS/
AFFILIATIONS
Civil Engineer 56558, California,
1997
TRAIN ING/CERT'IFICATIONS
Envision Sustainability
Professional, November 2014
Qualified SWPPP Developer
(QSD/P)
Qualified Industrial Storm Water
Practitioner (QISP)
YEARS OF EXPERIENCE
27 years
CONTACT'
Email:
Oliver.Galang@craftwaterinc.com
Tel. 213.598.4178
II Irk `' II Fb II.I 1 I'� II- 111 11 A`A IL...
9320 Chesapeake Drive, Suite 100
San Diego, CA 92123
January 12, 2021
Danielle Marquez, Buyer
City of Santa Clara
drnarquez(a�santa-clara.com
Subject: RFP # ES-20-21-18, Paradigm Cost File
Dear Ms. Marquez:
Attached is the Paradigm Environmental Inc. (Paradigm) cost proposal for the subject request for
proposal. This cost file includes a detailed cost estimate as well as billable rate sheets for our team.
This cost proposal is a firm offer for a 120-day period and the estimate represents a not -to -exceed price
for all items included in the Scope of Work, including all deliverables and meetings.
I am authorized to sign for and bind the Paradigm team to the terms of the agreement. If you have
any questions, please contact me at dustin.bar bic(&,r)aradigmh2o.com or (615) 970-2040.
A�',/ -5
Dustin Bambic, Director
Paradigm Environmental, Inc.
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Billable rate sheets for all team members are provided below.
AA
//i/
PIS I
I I•d 1 1� 3 91 I IA I
Paradigm Environmental, Inc.
Standard Billing Rates —July 1, 2020 through June 30, 2021
Labor Category
IHouirlly Rate
Principal Engineer/Hydrologist
$
215
Senior Engineer
$
195
Senior Water Quality Analyst
$
180
Senior Developer
$
175
Senior Scientist
$
165
Associate Engineer
$
160
Associate Hydrologist
$
155
Associate Analyst
$
150
Associate Scientist
$
145
Staff Engineer
$
140
Staff Hydrologist
$
130
Staff Analyst
$
125
Staff Scientist
$
120
Graphic Designer
$
115
Editor
$
105
GIS Technician
$
100
Field Specialist
$
83
Contract Administrator
$
85
Technician
$
70
Clerical
$
56
Intern
$
43
LARRY WALKER
ASSOCIATES
sdcircc .xflky I solli tolls
.* r
Effective Ill .-. a I
PERSONNEL
Rate $/Hour
Administrative
$ 93
Contract Administrator
$129
Project Staff 1-C
$119
Project Staff 1-B
$152
Project Staff 1 A
$180
Project Staff 11-B
$191
Project Staff 11-A
$212
Senior Staff
$246
Associate
$274
Vice President
$299
Executive VP
$312
Senior Executive
$328
President
$328
REIMBURSABLE COSTS
Travel:
Local mileage
Transportation
Auto rental
Fares
Room
Subsistence (')
Current IRS rate
Actual expense
Actual commercial rate
Actual expense
Actual expense
$48 per day
The rate for each meal as follows:(')
Breakfast
$ 9
Lunch
$13
Dinner
$21
Incidentals
$ 5
Report Reproduction and Copying:
Actual expense
Black and white copy, in-house $0.08
Color copy, in-house $0.89
Binding, in-house $1.95
Special Postage and Express Mail:
Actual expense
Other Direct Costs:
Actual expense
Daily Equipment Rental Rates:
Single parameter meters &
$ 30
equipment
Digital Flow Meter
$ 60
Multi -parameter field meters &
$100
sondes
Dye/tracer mapping or
$200
residence time
Multi -parameter continuous
$ 40
remote sensing
Subcontractors:
Actual expense plus 10%fee
Note: M Charged when overnight lodging is required.
Revised 5118120
BILLING RATE SCHEDULE
6 6
• •
Principal
•
_ • Project M_
I
•
Project
•
6
Senior Engineer
,
Senior Associate Engineer
•
Associate • — —
I
Junior Engineer
Senior Water Resources Specialist or Hydrologist
Associate Water Resources Specialist or Hydrologist
Junior Water Resources or Hydrologist
Senior Scientist
Associate ScientistI
•
Junior Scientist
Senior Programmer/Web Developer
Associate Programmer/Web Developer
I , , Technician
_ • GIS Analyst•
I
Associate G IS Analyst
e e e
Senior GraphicsStaff
I
. • hics Artist
Senior• •
Technical Editori
Contract Administrator
•
WaterResources Intern•