Agenda packet — Gardena City Council, July 23, 2024 (part 4 of 4)

ATTCHAMENT 2 –

CITY OF GARDENA

STORM DRAIN AREA MAP

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

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ATTCHAMENT 3 –
Sample Street Flow Directional Map
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 91 FWY
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PAGE

STORMWATER SYSTEM

BASE UPDATED

OVERLAY REVISED

CITY OF FULLERTON
7 - BMAY 2008
COUNTY - 2008
5 Feet
0 150 300
5 GRID

THIS MAP IS NOT AN OFFICIAL RECORD OF THE CITY BUT IS COMPILED FROM DATA FURNISHED BY PRIVATE CONTRACTORS AND OTHER SOURCES.

LOCATIONS AND SIZE OF STORMDRAINS AND OTHER RELATED
FACILITIES ARE SHOWN BASED ON THESE SOURCES. THIS

INFORMATION IS FURNISHED TO ANY PERSON STRICTLY AS

A CONVENIENCE AND THE CITY DOES NOT ASSUME ANY
RESPONSIBILITY FOR THE ACCURACY AND COMPLETENESS.
q
LEGEND

EASEMENT

PRIVATE STREET

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2 CATCH BASIN, OPENING WIDTH (FT.)
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FACILITIES

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ORANGE COUNTY

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NATURAL SWALE

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( REINFORCED CONCRETE PIPE (IN.)

C - PLAIN CONCRETE
* CORRUGATED METAL PIPE (IN.)

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BASE (b), DEPTH (d), (FT.), SLOPE RATIO (z)

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BASE X DEPTH (FT.)
*
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4 6
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

PROPOSAL

PREPARED FOR CITY OF GARDENA
JN 523 / March 2024

STORM DRAIN

MASTER PLAN
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

REQUIRED INFORMATION

IDENTIFICATION OF FIRM
Carollo Engineers, Inc.
707 Wilshire Boulevard, Suite 3920
Los Angeles, CA 90017
P: 213-489-1587

LEGAL BUSINESS STATUS
Carollo is a Corporation.

MINORITY STATUS
Carollo is an Other Business Enterprise (OBE).

FIRM OWNERSHIP
Carollo is a privately held Delaware
corporation solely owned by 50 shareholders
who are all full-time employees of the firm. A
select group of shareholders forms the Board
of Directors and they govern the company.

YEARS IN BUSINESS
Carollo was founded in 1933 and has been
operating for 91 years.

ADDENDA ACKNOWLEDGMENT
Carollo is in receipt of Addendum No. 1,
issued on March 7, and Addendum No. 2,
issued on March 13, 2024, relating to
this proposal.
carollo.com
March 25, 2024
Jun De Castro, Associate Engineer
City of Gardena
Department of Public Works Engineering Division
1717 West 162nd Street
Gardena, CA 90247
Subject: Proposal for the Storm Drain Master Plan | JN 523 Dear Mr. De Castro:

The Storm Drain Master Plan (master plan) project will provide the City of Gardena with a comprehensive program for the planning and maintenance of the City’s storm drainage system and provide reliable service through ultimate build out conditions. As demonstrated in our proposal, Carollo brings the depth and breadth of experience that is a direct match to your project needs. We can meet your schedule and our approach provides the following benefits:

Success Delivered Through Proven Project Leadership. Our team has proven their ability to develop dozens of master plans and condition assessment that not only meet our clients’ needs, but develop creative, cost-effective solutions that address challenges similar to your own. Our team, led by Ryan Orgill, Inge Wiersema, Tim Loper, and Danielle Orgill has collectively completed more than 300 master plans and hydraulic modeling projects, including the recent storm drainage master plans for the cities of Pacifica, Los Banos, and Tulare.

Sound Relationships, Fresh Ideas, and Collaboration. Having recently completed the City’s Sewer Master Plan, our team will be able to improve efficiencies as we work with your staff and NPS to develop a robust hydraulic model. Just as importantly, our team will come prepared to listen and collaborate on tailored solutions to facilitate the development of collection system improvements and assist with public outreach to your City Council, rate payers, and other end users.

Confidence Built Upon a Customized Project Approach. We understand that every decision made during the planning process has impacts for flow capacity, operational complexity, community impacts, and costs. In addition, we will efficiently perform CCTV inspection of the storm drain system and integrate proposed recommendations into a phased replacement plan that meets your budget. Results from field condition assessment will also be incorporated into the replacement planning so the City has a guide to address aging infrastructure.

Carollo has reviewed the City’s contract and has minor comments we would like to discuss upon selection. If you have any questions about this proposal, please contact Ryan Orgill at 559-284-5451 or [email protected].

Sincerely,
CAROLLO ENGINEERS, INC.

Inge Wiersema, PE, ENV SP Ryan F. Orgill, PE
Principal-in-Charge/Vice President Project Manager/Associate Vice President 707 Wilshire Boulevard, Suite 3920
Los Angeles, California 90017
213-489-1587
1 CAROLLO / PROPOSAL / MARCH 2024
B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 2 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 The Carollo team has provided master planning services all over California, including cities neighboring Gardena. Founded in 1933, Carollo’s engineering team has grown to include more than 1,400 employees in 50+ offices throughout the US. All our work is in water — resulting in a level of understanding of key storm drain system planning issues few can match.

Firm Overview
Firm Profile
At Carollo, Water is All We Do!
Carollo is a full-service environmental engineering firm with the sole focus of providing the highest quality water engineering services for our clients. This affords us a keen understanding of the water challenges you face — from water supply to regulatory requirements, climate risks, and tighter budgets. The project will be managed from our nearby Los Angeles office.

Comprehensive Master Planning
Carollo has consistently been a leader in the development of comprehensive master plans that include stormwater systems for cities and agencies facing a variety of complex issues, including Tulare, Morro Bay, and Pacifica. In these projects and others, we have demonstrated our ability to simplify complex technical, regulatory, and institutional issues to produce clear, concise, cost- effective, and implementable recommendations.

Success Delivered Through
Proven Project Leadership. Our
team has proven their ability to
develop dozens of master plans
and condition assessments.

Sound Relationships, Fresh
Ideas, and Collaboration. We
will build on our experience
with you on the Sewer Master
Plan to improve efficienceis and
streamline the inspection and
model development process.

Confidence Built Upon a
Customized Project Approach.

We have developed an
approach that tailors our storm
drain modeling and condition
assessment expertise to your
specific needs.

WHY SELECT
CAROLLO?

FIRM OVERVIEWFIRM OVERVIEW
A Deep Storm Water Bench
Beyond master planning, the Carollo team’s
stormwater experience includes program
management; stormwater monitoring;
development of BMPs; managing financial
and institutional issues; and permitting.

Shasta Lake
Redding
Chico
Oroville
Yuba City
Elk Grove
Truckee Sanitary District
South Tahoe Public Utility District
Madera CountyLos
Banos Fresno
Selma-Kingsburg-Fowler County Sanitation District
Visalia
Tulare Porterville
Lost Hills Utility District
BakersﬁeldTaft
20CRN0224pf6-ModelingMasterPlanning-Map.ai
Moorpark
Santa Barbara
Camrosa Water District
Oxnard
Simi
Valley
Los Angeles World Airport
VictorvilleHesperia
Cucamonga Valley Water District
Upland
Indio
El Centro
Torrance
Santa Maria
California Department of Corrections
Morro Bay
Modesto
Turlock
Livingston
Atwater
Galt
Napa
Sanitation
DistrictCotati
Sacramento Regional County Sanitation District
Riverside
Eastern Municipal Water District
Elsinore Valley Municipal Water District
Hanford
Lemoore
King City
West County Wastewater
Oakland
Pleasanton
San Francisco
East Bay Dischargers Authority
Paciﬁca
San Bruno
Millbrae
Hayward
Foster City
Mid-Peninsula Water District
Sewer Authirity Mid-Coastside
Union Sanitary District
San Jose
Mountain View
West Valley Sanitation District
Santa Cruz
Morgan Hill
Watsonville
Gilroy
Orange County Sanitation District
Inland Empire Utilities Agency
Anaheim
Garden Grove
Yorba Linda Water District
UC Irvine
Mesa Water
El Toro Water District
Moulton Niquel Water District
San Clements
Oceanside
Carlsbad
Encina Wastewater Authority
San Diego
Padre Dam Municipal Water District
Los Angeles
Glendale
Pasadena
San Bernardino
Colton
Redlands
Yucaipa
Banning
Map of Carollo’s master
planning and modeling
clients in California.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Our team will provide you with a
technically sound, comprehensive,
and fundable master plan to guide
future expenditures and deliver
multiple benefits for every project.
3 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 Your Project Team
We have assembled a team of experienced professionals
with a wide range of technical and institutional knowledge.

These individuals offer strength in their core technical specialties, a track record of working together, and a history of delivering similar projects in your region. Your project will receive the management, technical expertise, and personal attention required to make it a success.

Carollo’s key personnel will be available for the duration of the project and we acknowledge that no person designated as “key” to the project shall be removed or replaced
without the prior written concurrence of the City.

Carollo’s company-wide lead for sewer and storm
drain system modeling, calibration, and system analysis, Ryan Orgill, is the proposed project manager and is
an expert in developing hydraulic models for storm
drainage, water and recycled water distribution, and
sewer collection systems. He has worked on more
than 50 infrastructure master planning projects,
including storm drain master plans for the cities of
Pacifica, St. Helena, and Los Banos.

Our project team is shown in the adjacent
organizational chart. On the following pages we
have provided our key team member’s qualifications,
experience, responsibilities, and office location.

Resumes for all team members are provided in
the appendix.

PROJECT ORGANIZATION
Project Manager
Ryan Orgill, PE
Hydrologic/Hydraulic Modeling
Grace Mitzel, PE*
Flow Monitoring
Angel Mejia, PE1
CCTV
Mike Wetterau, PE*
Jeff Garcia 2
GIS/Graphics
Kevin Christensen
Principal-in-Charge
Inge Wiersema, PE, ENV SP
Technical Advisor (QA/QC)
Tim Loper, PE
Caroline Burger, PE*

SUBCONSULTANT
1 - V& A Consulting Engineers 2 - National Plant Services * = PE, Not licensed in California
Project Engineer
Danielle Orgill, PE
Project Organization
A Team You Can Trust. Nothing is more important to the
success of your project than the qualifications and experience of your engineering team. Simple, one-size-fits-all solutions will not meet your expectations for a thorough evaluation, sound recommendations, and quality hydraulic models to address your project needs — You need a team of specialists.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 4 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 Key Team Members
Inge Wiersema, PE, ENV SP

PRINCIPAL-IN-CHARGE
Responsibilities: Inge is an environmental engineer with 28 years of experience and serves as Carollo’s national One Water Director and Water Resources Practice Lead. She is specialized in strategic utility master planning and water resources projects and has been involved in more than 150 master planning and hydraulic modeling projects for water, recycled water, wastewater, and stormwater systems in Southern California. She also brings experience with stakeholder eng agement, groundwater management plans, watershed management plans, urban water management plans, and water supply studies. As a hands-on principal-in-charge, Inge will be responsible for providing technical input when needed, maintaining the project resource levels, overall QA/QC, and making sure the City’s needs are met.

Relevant Project Experience
Project manager for the Water Quality
Stormwater Management Plan for the City of
Torrance, CA.
Project manager for the Storm Drain Master
Plan for the City of Hughson, CA.
Project manager for the Machado Watershed
Enhanced Water Management Plan for the City
of Torrance, CA.
Project manager for the One Water 2050 Plan
for the City of South Pasadena, CA.
Project manager for the One Water LA 2040
Plan for the City of Los Angeles, CA.

Ryan Orgill, PE

PROJECT MANAGER
Responsibilities: Ryan brings 18 years of experience dedicated specifically to infrastructure master planning projects and is Carollo’s company-wide lead for sewer and storm drain system modeling, calibration, and system analysis. He developed Carollo’s means and methods for sewer system planning that have been adopted company-wide and is an expert in delivering projects that incorporate all critical elements of collection system capital program needs. Ryan has worked with both Inge Wiersema and Tim Loper on more than 20 master planning projects. As project manager, Ryan will serve as your primary point of contact throughout the project; he will carefully listen to your staff to understand your needs, drivers, and preferences, and will incorporate these concepts into the project to develop a plan that is accurate, robust, and flexible enough to address current and future needs.

Relevant Project Experience
Project manager for the Sewer Master Plan for
the City of Gardena, CA.
Project manager for the Storm Drain Master
Plan, City of Los Banos, CA.
Project manager for the Storm Drainage
System Master Plan, City of Pacifica, CA.
Project manager for the Integrated Utilities
Master Plan for the City of St Helena, CA.
Project engineer for the Storm Drainage
System Master Plan for the City of Tulare, CA.
Staff engineer for the Storm Drainage System
Master Plan for the City of Galt, CA.

Tim Loper, PE

TECHNICAL ADVISOR
Responsibilities: Tim is Carollo’s Infrastructure Master Planning Services Lead and has been working for more than 20 years exclusively on master planning, modeling, and asset management projects. Tim has served as project manager and/ or project engineer for more than 90 water, wastewater, stormwater and/ or recycled water master plans and modeling projects, with a focus on helping agencies develop capital improvement programs that help prioritize rehabilitation and replacement projects, as well as integrate capital with inspection and funding prioritization. Tim brings a pair of fresh eyes to the work we deliver to you as he is not involved in any of the project tasks. He will conduct technical reviews at all critical milestones according to Carollo’s Best Management Practices.

Relevant Project Experience
Project manager for the Sewer, Water, and
Storm Drain Master Plans and Sewer System
Management Plan for the City of Tulare, CA.
Project manager for the Sanitary Sewer, and
Storm Water Master Plans for the City of
Turlock, CA.
Principal-in-charge for the Integrated Master
Plan for water, wastewater, and storm
drainage for the City of Porterville, CA.
Project manager for the Integrated Water
Wastewater Resources Management Plan for
the City of South Pasadena, CA.
Project engineer for the Wastewater Collection,
Water Distribution, and Storm Drainage Master
Plans for the City of Galt, CA.

Los Angeles, CA
Reno, NV
Reno, NV

PROJECT ORGANIZATION
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 5 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 Caroline Burger, PE

TECHNICAL ADVISOR
Responsibilities: Caroline has 23 years of experience in water resources engineering working with public and private clients. Her expertise includes urban hydrologic, hydraulic, and nonpoint source pollution modeling; stormwater utility development; and program management. Her experience also includes hydrologic, hydraulic, and scour analyses of existing and proposed structures and floodplains using software, such as XP-SWMM 1D/2D, PC-SWMM 1D/2D, InfoSWMM 1D/2D, EPA- SWMM, Flo-2D, and HEC-RAS 1D/2D. Caroline is well versed in several software programs and is a codeveloper of WinSLAMM and WinDETPOND software. Caroline will support Tim to conduct technical reviewes bringing her expertise in hydrologic and hydraulic modeling to build confidence into the Carollo’s recommendations for improvements.

Relevant Project Experience
Project manager and quality control reviewer
for the Gallups/Merritts Creek Watershed
Stormwater Management Plan for the City of
Oshkosh, WI.
Modeling lead for the Brook Oaks
Neighborhood Stormwater Master Plan for the
City of Waco, TX.
Project manager for the Brookfield Stormwater
Management Plan Update for the City of
Brookfield, WI.
QA/QC for the Channel Conveyance
Improvements along Goose Creek and
Stormwater Detention Basin for the Harris
County Flood Control District, TX.

Danielle Orgill, PE

PROJECT ENGINEER
Responsibilities: Danielle has 10 years of experience in infrastructure design, modeling, and planning and has assisted with master planning and evaluation studies for water, sewer, and storm drainage systems. She also has experience in data management, analysis, hydraulic modeling, and GIS. Danielle has worked with this same team on numerous master planning projects throughout California, including storm drainage system master plans for the cities of Tulare, Los Banos, and St.

Helena. Danielle will serve as project engineer and will, along with Ryan, oversee the technical direction of the project team.

Relevant Project Experience
Project engineer for the Sewer Master Plan for
the City of Gardena, CA.
Project engineer for the Storm Drainage System
Master Plan for the City of Tulare, CA.
Hydraulic modeling engineer for the OneWater
Plan for the City of Morro Bay, CA.
Hydraulic modeling lead for the Storm Drainage
System Master Plan for the City of St Helena, CA.

SUBCONSULTANTS
V&A Consulting Engineers
Flow Monitoring
V&A is a multi-disciplined engineering organization specializing in evaluating, rehabilitating, and preserving municipal infrastructure in the water, wastewater, and transit industries. V&A has supported municipalities and agencies in managing their water and wastewater collection systems and mitigating sanitary system overflows. They have completed more than 100 sanitary and stormwater flow monitoring projects in the past five years alone in support of master planning studies, totaling more than 1,200 flow monitoring locations. Carollo has worked with V&A, and specifically with Kevin Krajewski, on more than 50 sewer planning and modeling projects within the last 10 years, including the City of Torrance Sewer Master Plan, the City of Chino Hills Citywide Wastewater Master Plan Update, and the West County Wastewater District’s District-Wide Master Plan.
11011 Via Frontera, Suite C, San Diego, CA 92127
P: 858-576-0226
Madison, WI
Reno, NV
National Plant Services
CCTV/Pipeline Inspection
NPS is a full-service sewer and storm drain cleaning, inspection, rehabilitation, and maintenance contractor. They have been providing these services to cities, counties, sanitation districts, and contractors since 1981. NPS owns all the equipment and employs all the personnel to perform the work necessary to meet the specifications and requirements for an agency. In addition to cleaning and inspection, NPS provides laser inspection, sonar inspection, LiDAR inspection, flow monitoring/sewer studies, industrial plant cleaning, specialty cleaning/mechanical cleaning, smoke testing, line grouting, spot repairs, lateral lining from the mainline, and top hats (lateral seals).

Local clients include the City of Los Angeles, City of Alhambra, Los Angeles County Public Work, and Los Angeles County Flood Control. 1461 Harbor Avenue, Long Beach, CA 90813
P: 562-436-7600

PROJECT ORGANIZATION
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Carollo and National Plant
Services’ experience with the
City on the Sewer Master Plan
will streamline the field work
needed to build the hydraulic/
hydrologic model and to
conduct CCTV inspections.
6 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 The Carollo team is prepared to deliver the Storm Drain Master Plan.

Your goals include developing a comprehensive hydrologic/hydraulic model of the system, evaluating future projects/developments to confirm system capacity, and developing a prioritized capital improvement program (CIP) plan. We will leverage our experience with the City on the recent Sewer Master Plan to deliver a plan that meets your needs.

Project Understanding,
Approach, and Methodology
Project Understanding
The City is seeking to develop a comprehensive program for the planning and maintenance of the City’s storm drainage system. The project would develop the City’s first ever Storm Drain Master Plan. The City provides storm drainage to customers within their current City limits. Runoff is conveyed through a network of pipelines and open channels owned by the City and/or LA County Flood Control District. The goal of this master plan is to reduce flood risks within the City, enhance public safety, protect City assets, and to develop a prioritized capital improvement plan for the City.

Project Approach and Methodology
This project offers up some challenges and opportunities for the City. After thinking about the project objectives and developing the project Work Plan shown below, Carollo has identified multiple areas of focus that are key to project success. These success factors are:
Streamlined field data collection for storm drainage infrastructure (including manhole invert and rim elevations) and closed circuit television (CCTV) inspections. Development of an accurate and reliable hydraulic/hydrologic model that provides confidence in CIP recommendations.
The interactive CIP reduces flood risk and provides a platform to easily communicate project drivers to stakeholders.

These elements play into each other, and successful completion of each fuels greater confidence in the following steps. Carollo’s experience and understanding of the complexities of drainage system planning can make a highly complex problem efficient and intuitive to complete. We highlight our approach to these focus areas below and on the following pages.

PROJECT UNDERSTANDING, APPROACH, AND METHODOLOGY
Our work plan is built around efficient flow from one task to another, with project elements being implemented concurrently to move the project along. Close coordination with City staff on workshop dates and data collection will be critical for success.

Field Surveying/
CCTV
Condition
Assessment
Findings and
Recommendations
Data Collection
Hydraulic/
Hydrologic Model
Development
Hydraulic/
Hydrologic Model
Validation
Develop Planning
and Evaluation
Criteria
Capacity
Analysis and
Recommendations
Capital
Improvement Plan
Draft Master Plan
Report
Final Master Plan
Report
Calibrate Model
and Revise Project
Recommendations
Flow Monitoring
Project
Kickoff
Optional Task
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Carollo’s approach to developing percent
impervious assumptions uses advanced GIS
techniques using the following steps:

Step 1 – Obtain Multi-Spectral Imagery
The first step was to obtain a 4-band multispectral image. A 4-band image includes the near infrared spectrum which is used to emphasize vegetation.

Step 2 – Extract Spectral Bands to distinguish Urban vs Natural Features
The next step involved separating the color bands to visually distinguish various features. The near infrared color band is used to detect vegetation, the red band identifies bare soil, and the blue band is helpful for determining urban features, especially concrete.

Step 3 – Supervised Image Analysis
Next, the image was segmented and training samples
were created to classify the image into impervious or
pervious surfaces.
7 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324

PROJECT UNDERSTANDING, APPROACH, AND METHODOLOGY
Carollo/National Plant Services’ experience
with the City on the Sewer Master Plan
will streamline the field work needed
to build the hydraulic/hydrologic model
and to conduct CCTV inspections
We have teamed with NPS to conduct CCTV inspection of
the storm drainage system pipelines as requested in the RFP Addendum No. 1. NPS has extensive experience with the City in conducting CCTV inspections for the City’s entire 88 miles of sewer mains. NPS will leverage the lessons learned from the sewer system CCTV inspections to complete inspections of the storm drainage system in a streamlined and efficient manner.

Additionally, it is our understanding that the City has a good base map of the storm drainage system, which shows the locations of storm drainage system infrastructure. However, based on our experience on the Sewer Master Plan, it is expected that manhole/ inlet rim and pipeline invert data will not be readily available from the City. For this reason, we have also asked NPS to collect the field data necessary to compile a complete geographic information system (GIS) database of the storm drainage system.

They will collect X,Y coordinates of each storm drainage system manhole and inlet in the system, manhole/inlet ground elevation, as well as manhole depth. NPS performed similar services for the Sewer Master Plan, which resulted in a complete/comprehensive GIS database for the sewer system and provided the data needed to develop the sewer system hydraulic model.

The field data collection and
CCTV effort required for this
project is very similar to the
tasks performed by National
Plant Services for the Sewer
Master Plan project. Our team
can quickly mobilize the field
work to help keep the overall
project schedule on track.

Carollo’s approach to the hydrologic/hydraulic
model development provides confidence
in the capital project recommendations.

Developing a reliable and defensible modeling tool requires developing an accurate representation of the drainage system facilities in the model, and performing a validation process to demonstrate that the model accurately simulates field observations. Carollo will incorporate all readily available information needed to construct the model (e.g., CAD drawings, as-built drawings, etc.) supplemented by the field data collected by NPS, to develop a comprehensive hydrologic/hydraulic modeling tool for the City.

One of the most important parameters in a storm drainage system model is the percent impervious associated with each model tributary area (i.e., model subcatchment). The modeled percent impervious can be estimated based on land use types and other standard industry values. Carollo employs a more rigorous analysis to develop percent impervious assumptions using 4-ban multi-spectral aerial images. Carollo uses advanced image processing techniques in GIS to classify urban versus natural features within the multi-spectral image, which can then be easily classified as impervious versus pervious surfaces. The end result of this process is an accurate representation of percent impervious assumptions that are built into the model based on real world mapping as opposed to land use based assumptions.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 8 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324

PROJECT UNDERSTANDING, APPROACH, AND METHODOLOGY
Story Maps provide a fun
and interactive summary of
project improvements by
location. For the majority
of the time a master plan
sits on the shelf, but this
tools allows your team to
quickly pan around and
locate projects with details
that are tailored to your
specific needs! As shown,
Carollo has used this tool
on similar projects, such as
the Northwest Reno Sanitary
Sewer Capacity Analysis and
Master Plan.

Carollo’s electronic deliverables provide an easy way to communicate CIP recommendations to project stakeholders.

A hard copy or pdf report format has some utility, because it is often helpful to have all the master plan information consolidated in one place. However, the standard hard copy master plan leaves much to be desired when it comes to updates that are necessary to reflect ever-changing drivers and implementation assumptions.

Carollo’s electronic master planning tools put your entire system at your fingertips. All of the requisite information for project implementation—cost, project need/driver(s), project priority—is linked so that it can be easily accessed through GIS. But more important for you as the end user, input data, including cost, timing/phasing, and priority for implementation, can be easily adjusted such that the entire CIP is automatically reset. Carollo’s electronic deliverable would supplement the master plan report to provide superior flexibility as a planning and financial tool, particularly over the course of a long CIP time horizon, during which any number of variables can change, resulting in a need to update project implementation schedules and cash flow projections.

SCOPE OF WORK
Task 1: Project Management
and Quality Control
Task 1.1 Project Administration and Schedule
To help monitor and maintain a timely project, monthly schedule updates will be provided to the City electronically. Carollo will prepare monthly project status reports, which will be submitted along with the monthly invoices. Our project status reports will summarize the following:
• Description of work completed in reporting period.
• Percentage complete to date by task and subtask.
• Schedule update.
• Budget update.
• Status of deliverables table.
• Data gathering table.
• Action item table.
• List of potential project issues.

Task 1.2 Project Meetings
The project will be launched at a kick-off meeting between the project team members, where the following will be accomplished:
• Confirm project objectives.
• Discuss involvement and needs from various City
departments.
• Review list of data needed for completion of the study. • Review previous work and studies.
• Document existing conditions and identify known system deficiencies.
• Define project roles and distribute project roster.
• Review schedule.

Carollo will work closely and maintain an open line of
communication with City staff throughout the duration of the master plan project. Our most direct way to communicate and assist you and your staff will be through bi-weekly meetings throughout the duration of the project. Meetings are scheduled such that they can effectively be used to get input from City staff on the direction of the work, discuss deliverables, and make decisions to stay on schedule. In addition to the kick-off meeting and bi-weekly meetings, this task includes three progress workshops.

Task 1.3 Quality Control
This task consists of project QA/QC activities related to the project deliverables. Carollo’s project manager, technical advisor, and partner-in-charge will carefully review data and project deliverables to make sure that they meet the strict quality standards of the City and Carollo.

Task 1 Deliverables
• Monthly progress reports and invoices
• Workshop presentations, agendas, and minutes
• Summary email of biweekly meetings with ongoing list of action items
Task 2: System Inventory and
GIS Database Development
Task 2.1 Data Collection and System Inventory
Carollo will perform a thorough reconnaissance and review effort to secure data, input, studies, policies, regulations, and other background materials that will be needed to facilitate the successful completion of the master plan. The City will furnish to Carollo all available studies, reports, and other data pertinent to our services, and we anticipate being entitled to use and rely upon all such information provided by the City or others authorized by the City in performing our services under this work plan.

The objective of this task is to review and assess the quality of available storm drain-related data and identify additional needs.

Carollo will not reinvent the wheel, but will inventory and review the appropriate available data from the City. Specific sources of information that will be targeted are:
• The City’s existing storm drainage system GIS database, aerial maps, and CAD maps.
• Gardena General Plan.
• Existing City drawings, atlas maps, and/or record drawings (where needed).
• Known deficiencies in the storm drain system/ flooding locations.
• Review of other relevant City and County maps and studies.

A plan for data collection will be developed in coordination with the City to facilitate the data collection phase, to minimize duplication of efforts between tasks, and to assure that appropriate data sources are investigated.

Task 2.2 GIS Database Development
Carollo will prepare a GIS-based database of the City’s collection system, including concrete channels, swales, underground pipelines, and manholes. County storm drain infrastructure within the City limits will also be included in the GIS database. The GIS database will be prepared using the City’s existing sewer system mapping (CAD format), which will be converted to GIS and all data necessary to complete the database (e.g., pipe inverts and diameter, manhole invert and rim, etc.). As-built drawings and/ or reasonable assumptions will be used to fill in data gaps where needed. Condition information gathered as part of Task 3 will also be included. The GIS database will have complete metadata and DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523
CAROLLO / PROPOSAL / MARCH 2024
B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 10

SCOPE OF WORK
will be provided to the City in a shapefile format compatible with the City’s computerized maintenance management system (CMMS) platform. The coordinate system to be used for GIS data is NAD 1983 State Plane California Zone 5 FIPS 0405 feet. Maps will be provided to the City as PDF and shapefile formats.

Task 2 Deliverables
• Data collection list (to be updated throughout project). • Final storm drain system map with attribute data in shapefiles compatible with City’s CMMS platform.

Task 3: Condition Assessment
Task 3.1 CCTV Inspection of City Pipelines
The Carollo/National Plant Services Team will conduct Closed Circuit Television (CCTV) inspection of approximately 61,000 feet (11.6 miles) of City underground pipelines. The system will be inspected in accordance with the National Association of Sewer Service Company’s (NASSCO) Pipeline Assessment and Certification Program (PACP).

We will document all observed critical structural damage or blockages, and provide corrections to the storm drain system drawings, as appropriate.

Task 3.2 CCTV Inspection of County Pipelines
The Carollo/National Plant Services Team will conduct Closed Circuit Television (CCTV) inspection of approximately 91,000 feet (17.2 miles) of underground County pipelines located within City limits. The system will be inspected in accordance with the National Association of Sewer Service Company’s (NASSCO) Pipeline Assessment and Certification Program (PACP).

We will document all observed critical structural damage or blockages, and provide corrections to the storm drain system drawings, as appropriate.

Task 3.3 Condition Assessment
Technical Memorandum
Carollo will develop a technical memorandum (TM) summarizing the methodology and results of the condition assessment completed as part of this task. This TM will include maps summarizing the results of the condition assessment and a ranking of the most critical deficiencies identified. Comments received on the draft TM will be incorporated into the draft master plan report (Task 7).

Task 3 Deliverables
• CCTV inspection files, including field reports, photos, and videos.
• Spreadsheets with compiled condition data.
• Condition assessment data in shapefiles compatible with City’s CMMS platform.
• Draft Condition Assessment Technical Memorandum.

Task 4: Hydraulic Model
Development and Evaluations
Task 4.1 Watershed Development
Carollo will delineate urban and natural watersheds with their overall flow paths tributary to the City.

This task will also include the development of street flow directional maps. This will include a D-size overview map, with 11x17 detail maps covering the entire City limits.

Task 4.2 Hydraulic Model Development
Using the GIS database developed as part of Task 2, Carollo will construct a hydrologic/hydraulic model of the storm drain system using the InfoWorks ICM software (developed by AutoDesk, formerly Innovyze). The model will include the primary watersheds, subbasins, and facilities within the City and off-site contributing areas.

Carollo will create a new parcel-based land use layer using high resolution QuickBird satellite imagery. The satellite imagery will be combined with parcel maps of the city, topo maps, and digital elevation models to derive a parcel-level land use layer. The spatial resolution of QuickBird imagery is 61 cm.

Future land use will be modeled using the City’s general land use plan and known planned developments. The results of the analysis of satellite imageries, that is, satellite remote sensing, will be used to model the likely future development conditions based on accurate depiction of the existing development.

Task 4.3 Hydraulic Model Validation
Once the hydrologic and hydraulic parameters have been input into the model, Carollo will run at least one historical rainfall event.

The hydraulic model will be validated against historical knowledge of past rainfall event(s) to ensure the model shows flooding in areas known to have flooding. An optional task for flow monitoring and model calibration is included in Task 6.

Task 4.4 Planning and Evaluation Criteria
This task consists of defining the methodologies for evaluating the storm drain system, sizing the proposed improvements, and developing the capital improvement projects. This task will review the City’s existing design standards for sizing storm water conveyance and storage facilities, and other relevant standards.

SCOPE OF WORK
Task 4.5 Climate Change Analysis
As part of this task, the potential impacts of climate change on the storm drain system will be assessed. These impacts will be researched and summarized, documenting the impact of climate change which will be incorporated into the hydrologic/hydraulic model. Work performed by Carollo under this task includes:

Carollo will identify and document the impacts of climate change on flooding and coastal erosion across the region of the City of Pacifica based on the latest scientific research – specifically, the change in magnitude and severity of extreme events and sea level rise. Coordinate these findings with those impacts included in state guidance (i.e., the Ocean Protection Council’s latest Sea Level Rise Guidance) that are taken into account by the Local Coastal Program, as directed by the California Coastal Commission.

Carollo will review climate change scenarios and their Impact to system performance objectives. Conduct a workshop with City staff in which Carollo will present the likely impacts of climate change on facilities. The outcome of the workshop will be to confirm how to incorporate the select scenarios in the hydraulic modeling efforts.

Carollo will summarize findings of and recommended
considerations for this task in a technical memorandum.

Incorporate City staff comments on the Draft Climate
Change Impacts Technical Memorandum and prepare a Final Memorandum for the City’s approval.

Task 4.6 System Evaluation of City Infrastructure
Carollo will analyze the City’s existing and future storm drainage system. The model will account for both existing and future land use/zoning/development, hydrologic conditions, runoff rates, and climate change impacts. In addition, a hydraulic and quantitative analysis of the storm drain facilities will be undertaken. The hydraulic model will then be used to identify deficiencies in the existing storm drainage system. Special consideration will be given to those facilities in which known system deficiencies already exist and/or have been targeted by the City to be modified.

Based on the hydraulic model evaluation, Carollo will recommend improvement projects to mitigate the existing system deficiencies.

Task 4.7 System Evaluation of County Infrastructure
Carollo will analyze the County’s existing and future storm drainage facilities located within City limits. The model will account for both existing and future land use/zoning/development, hydrologic conditions, runoff rates, and climate change impacts.

In addition, a hydraulic and quantitative analysis of the storm drain facilities will be undertaken. The hydraulic model will then be used to identify deficiencies in the existing storm drainage system. Special consideration will be given to those facilities in which known system deficiencies already exist and/or have been targeted by the City to be modified. Based on the hydraulic model evaluation, Carollo will recommend improvement projects to mitigate the existing system deficiencies.

Task 4.8 Hydraulic Model Development and
Evaluation Technical Memorandum
Carollo will develop a technical memorandum summarizing the work completed as part of this task, including model development and validation, final planning criteria, and existing and future deficiencies identified. Key assumptions, inputs, utilized data sets, model development and calibration methodology will also be included. Comments received on the draft TM will be incorporated into the draft master plan report (Task 7).

Task 4 Deliverables
• Watershed hydrology map (hard copy 24”x36” size) and GIS shapefiles.
• Final hydraulic model files.
• Hydraulic model output files.
• Street flow directional maps (including D-size overview map and 11x17 detail maps covering City limits).
• Draft hydraulic model development and evaluations technical memorandum
Task 5: Capital Improvement Projects
Task 5.1 Develop Recommended
Improvements (City Infrastructure)
Improvements to City storm drainage facilities necessary to meet existing and future capacity will also be identified and verified with the hydraulic model. Project alternatives, when feasible, will be identified and discussed with City staff. Benefits for the selected alternatives will be presented to City staff for review.

Task 5.2 Develop Recommended
Improvements (County Infrastructure)
Improvements to County storm drainage facilities necessary to meet existing and future capacity will also be identified and verified with the hydraulic model. Project alternatives, when feasible, will be identified and discussed with City staff. Benefits for the selected alternatives will be presented to City staff for review.

Task 5.3 Rehabilitation and Replacement Program
Based on the results of the CCTV inspection program (part of Task 3), Carollo will provide recommendations for the City to develop a storm drainage inspection, condition assessment, and renewal/ replacement program. The recommended program will consider the City’s current staffing levels and the funding availability to implement the program. Carollo will recommend an inspection and condition assessment schedule with specific areas of the storm drainage system targeted in a given year.

The recommended renewal/replacement plan will be prioritized based on the age of the facilities, with areas with known structural deficiencies being given higher priority. Recommendations from the condition assessment and rehabilitation/replacement program will be incorporated into the CIP and master plan document.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523
CAROLLO / PROPOSAL / MARCH 2024
B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 12 Task 5.4 Develop CIP
Carollo will prepare exhibits and cost summaries of the existing system and future system improvement projects. This will include deficiencies, proposed improvements that address these deficiencies, and phasing of the improvements.

The CIP will be used as a tool for the orderly construction of the proposed facilities. Based on the input, coordination, iterations, and final project phasing, Carollo will develop CIP implementation plans to prioritize the proposed improvement projects, including phasing and estimated timing of the improvements. It should be noted that the CIPs will distinguish between the improvements needed to correct existing deficiencies and those needed to service future developments. Planning level costs associated with each proposed improvement will be based on the recommended unit costs approved by City staff.

The recommended improvement projects will be prioritized and phased based on the City’s goals and objectives. To facilitate the documentation and phasing of improvements, Carollo will prepare a large system map that presents all recommended projects by phase. This map will list project sizes and project IDs that correspond to the project ID in the CIP tables. The CIP tables will list the project ID, location, sizing information, cost estimates, and proposed phasing for each project. We will also prepare detailed project summaries of the recommended CIP projects.

Carollo will review the preliminary recommended improvements with the City in a workshop. The draft CIP will be developed based on feedback received during this workshop.

Task 5.5 CIP Technical Memorandum
Carollo will develop a technical memorandum summarizing the work completed as part of this task, including unit cost methodology and assumptions and proposed improvements. This TM will include project detail sheets which will summarize the need for each project, proposed sizing, estimated cost, as well as proposed phasing. Comments received on the draft TM will be incorporated into the draft master plan report (Task 7).

Task 5 Deliverables
• Draft Capital Improvement Program Technical Memorandum Task 6: Hydraulic Model Calibration and
Flow Monitoring (Optional Task)
Task 6.1 Flow Monitoring Program
As part of this optional task, Carollo will team with V&A Consulting Engineers, Inc . to install temporary flow monitors and analyze collected data within the City’s storm drainage system.

To quantify the distribution of flows within the storm drainage system, V&A will implement a flow monitoring program. To have the best chance of capturing wet- weather flows, a four-week flow monitoring program is recommended.

An allowance of $75,000 is budgeted for the flow monitoring program. The flowmeters will be installed at strategic locations throughout the system, with the goal of capturing flows from the major watershed areas of the City.

Task 6.2 Hydraulic Model Calibration
Following the flow monitoring period, the data collected will be compiled into spreadsheet form. This data will then be used to verify that the storm water runoff through the City’s storm drainage system during a particular storm is replicated in the City’s storm drainage system model within an acceptable range.

Various hydraulic and hydrologic parameters will be adjusted in the model to accomplish this.

Task 6.3 System Evaluation
Carollo will re-evaluate the recommended improvements
developed as part of Task 5 to determine any changes based on the re-calibrated hydraulic model. The CIP will be updated based on this analysis.

Task 6 Deliverables
• Draft and final flow monitoring report.
• Spreadsheet with raw flow monitoring data.

Task 7: Master Plan Report
This task consists of producing a stand-alone document that will serve as the main planning document for the City’s storm drain facilities. A detailed report outline of the proposed master plan will be submitted to City staff for review and comment prior to the completion of the draft report. The executive summary sections will bring forward the most significant findings of the project. Carollo will submit the draft report in electronic format. A workshop will be held to discuss the City’s comments on the draft report. The final report will incorporate City staff comments from the reviewed draft report. Up to five hard copies of the final report will be delivered to the City. Electronic copies of the report (pdf and word files) will also be provided to the City.

Carollo will also prepare a large system map (24 by 36 inches) that presents all recommended projects with the proposed phasing, sizing, and project IDs. Up to five copies of the printed and bound final report and an electronic copy will be supplied.

Task 7 Deliverables
• Draft master plan report (electronic pdf submittal)
• Final master plan report (5 hard copies and electronic pdf/ word files)
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

CLIENT / NAME OF PROJECT

CAROLLO / PROPOSAL OR QUALIFICATIONS / MONTH YEAR
B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 13

PROJECT SCHEDULE
Project Schedule
Carollo’s project schedule is based on a best estimate of the timing to complete all the elements of the project.

ID
Task
Mode
Task Name Duration Start Finish
1 Task 1 - Project Management and Quality Control 296 days Mon 5/13/24 Mon 6/30/25 2 Task 1.1 - Project Administration and Schedule
3 Task 1.2 - Project Meetings
4 Task 1.3 - Quality Control
5 Task 2 - System Inventory and GIS Database Development 58 days Mon 5/13/24 Wed 7/31/24 6 Task 2.1 - Data Collection and System Inventory 46 days Mon 5/13/24 Mon 7/15/24 7 Task 2.2 GIS Database Development 44 days Fri 5/31/24 Wed 7/31/24 8 Task 3 - Condition Assessment 113 days Fri 5/31/24 Tue 11/5/24 9 Task 3.1 - CCTV Inspection of City Pipes 67 days Fri 5/31/24 Mon 9/2/24 10 Task 3.2 - CCTV Inspection of County Pipes 44 days Tue 7/30/24 Fri 9/27/24 11 Task 3.3 - Condition Assessment Technical Memorandum 24 days Thu 10/3/24 Tue 11/5/24 12 Task 4 - Hydraulic Model Development and Evaluations 179 days Tue 7/16/24 Fri 3/21/25 13 Task 4.1 - Watershed Development 35 days Tue 7/16/24 Sun 9/1/24 14 Task 4.2 - Hydraulic Model Development 44 days Mon 9/2/24 Thu 10/31/24 15 Task 4.3 - Hydraulic Model Validation 22 days Fri 11/1/24 Mon 12/2/24 16 Task 4.4 - Planning and Evaluation Criteria 21 days Tue 11/12/24 Tue 12/10/24 17 Task 4.5 - Climate Change Analysis 89 days Wed 10/9/24 Mon 2/10/25 18 Task 4.6 - System Evaluation of City Infrastructure 52 days Tue 12/10/24 Wed 2/19/25 19 Task 4.7 - System Evaluation of County Infrastructure 52 days Tue 12/10/24 Wed 2/19/25 20 Task 4.8 - Hydraulic Model Development and Evaluation Techical Memorandum
22 days Thu 2/20/25 Fri 3/21/25
21 Task 5 - Capital Improvement Projects 131 days Fri 11/1/24 Fri 5/2/25 22 Task 5.1 - Develop Recommended Improvements (City
Infrastructure)
42 days Thu 2/20/25 Fri 4/18/25
23 Task 5.2 - Develop Recommended Improvements (County
Infrastructure)
42 days Thu 2/20/25 Fri 4/18/25
24 Task 5.3 - Rehabilitation and Replacement Program 107 days Fri 11/1/24 Mon 3/31/25 25 Task 5.4 - Develop CIP 44 days Tue 3/4/25 Fri 5/2/25 26 Task 5.5 - CIP Technical Memorandum 44 days Tue 3/4/25 Fri 5/2/25 27 Task 6 - Hydraulic Model Calibration and Flow Monitoring (Optional Task)
86 days Fri 1/31/25 Sat 5/31/25
28 Task 6.1 - Flow Monitoring Program 42 days Fri 1/31/25 Mon 3/31/25 29 Task 6.2 - Hydraulic Model Calibration 22 days Tue 4/1/25 Wed 4/30/25 30 Task 6.3 - System Evaluation 23 days Thu 5/1/25 Sat 5/31/25 31 Task 7 - Master Plan Report 129 days Wed 1/1/25 Mon 6/30/25 32 Task 7.1 - INSERT TASK NAME 94 days Wed 1/1/25 Mon 5/12/25 33 Task 7.2 - INSERT TASK NAME 35 days Tue 5/13/25 Mon 6/30/25

F M A M J J A S O N D J F M A M J J
Half 1, 2024 Half 2, 2024 Half 1, 2025 Half 2, 2025
Task
Split
Milestone
Summary
Project Summary
Inactive Task
Inactive Milestone
Inactive Summary
Manual Task
Duration-only
Manual Summary Rollup
Manual Summary
Start-only
Finish-only
External Tasks
External Milestone
Deadline
Progress
Manual Progress

Page 1 ends

Project: Gardena Storm Draft Sc
Date: Tue 3/19/24
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 14 CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523 CAROLLO / PROPOSAL / MARCH 2024B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324

PROJECT CLIENT CONTACT TEAM INVOLVEMENT
Water, Sewer, Wastewater Treatment,
and Storm Drain Master Plan Updates,
City of Tulare, CA
Tim Doyle, Assistant Public Works Director
411 East Kern Avenue, Tulare, CA 93274
p. 559-684-4207 | e. [email protected]
Ryan Orgill, Tim Loper, Danielle Orgill, Kevin
Christensen
Stormwater Drainage Master Planning,
City of Pacifica, CA
Lisa Peterson, Public Works Director
540 Crespi Drive, Pacifica, CA 94044
p. 650-738-3770 | e. [email protected]
Ryan Orgill, Kevin Christensen, V&A
Sanitary Sewer and Stormwater Master
Plans, City of Turlock, CA
Anthony Orosco, Senior Civil Engineer
156 South Broadway, Suite 150, Turlock, CA 95380
p. 209-668-5520 | e. [email protected]
Ryan Orgill, Tim Loper, Kevin Christensen
OneWater Morro Bay Integrated Master
Plan, City of Morro Bay, CA
Joe Mueller, Former City Operations Manager
595 Harbor Street, Morro Bay, CA 93442
p. 916-826-3912 | e. [email protected]
Tim Loper, Ryan Orgill, Danielle Orgill, Kevin
Christensen
References
Just Ask Our Clients. Carollo takes pride in the continuing relationships we have developed with our clients. They will be happy to attest to the quality of services and responsiveness provided by our team members on similar projects.

Experience that Counts
Carollo is known for the large number of clients with whom we have maintained long-term relationships. Our experience shows that open communication, collaboration, and coordination build trust, minimize conflict, and eliminates surprises.

Carollo’s planning team has experience in stormwater planning projects that span a vast spectrum of services, from small specific planning studies to large regional programmatic planning efforts. In the long run, it’s that experience that provides you with the knowledge that by selecting Carollo, you have a trusted advisor who can tap into a wealth of experience tackling similar challenges to yours. We look forward to adding the City to our list of happy master plan clients.

The table below presents a sample of some of our relevant experience within the last five years, along with references who can attest to our level of service and responsiveness on similar projects.

REFERENCES
Claims/Litigation
Carollo has had the following claims/litigation filed against us, but none was against any proposed Principal and/or Project Manager, related to the performance of a professional services agreement or participation in a project during the past five (5) years:
• a. In 2019, Carollo and several other large water
engineering firms doing business in Florida were sued by a private citizen who has a history of suing governmental entities (i.e., his most recent lawsuit was against the Federal Reserve). The overall allegations of the citizen center around claims that Carollo was working with the other noted water firms to hide an alleged underground water source on the plaintiff’s/citizen’s property from our Florida clients. The lawsuit was subsequently dismissed.
• b. In 2020, Carollo and their joint venture partner were the subject of a lawsuit filed by a client related to tank corrosion as part of a design-build project completed in 2005. The matter was submitted to mediation and thereafter settled with no admission of fault by Carollo.
• c. In 2021, Carollo was the subject of a lawsuit filed by a client related to the replacement of trickling filter media as part of a wastewater treatment plant rehabilitation project.

Carollo denies responsibility for any of the claims. The lawsuit is in progress.
• d. In 2021, Carollo and the construction contractor were the subject of a lawsuit filed on behalf of a client via subrogation by their insurance carrier related to ozone equipment
installed as part of a new surface water treatment plant project. The lawsuit was subsequently dismissed.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E CITY OF GARDENIA / STORM DRAIN MASTER PLAN | JN 523
CAROLLO / PROPOSAL / MARCH 2024
B:\Pursuits\Client24(LAO)\Gardena\StormDrainMasterPlan\prop0224\Indd\24Gardena-SDMP-Prop0324 Appendix
Resumes. Carollo’s team will work with City staff to lay a solid foundation for the City’s storm drain system – from assessing conditions to identifying projects to recommending policies and funding.
• Inge Wiersema
• Ryan Orgill
• Tim Loper
• Caroline Burger
• Danielle Orgill
• Grace Mitzel
• Mike Wetterau
• Kevin Christensen
• Angel Mejia (V&A)
• Jeff Garcia (NPS)

APPENDIX
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

B/Resumes/LAO/WiersemaInge.docx
Education
MSc Environmental
Engineering,
Wageningen University,
The Netherlands, 1997
MSc Water Management
– Coursework of Civil
Engineering, Technical
University Delft, The
Netherlands, 1996
BS Environmental
Engineering, Hogeschool
Van Utrecht, The
Netherlands, 1995
Licenses
Civil Engineer, California,
Hawaii
Environmental
Sustainability Professional
(ENV SP)
Professional
Affiliations
American Academy of
Water Resources
Engineers
American Society of Civil
Engineers
American Water Works
Association
Association of Women in
Water, Energy, and
Environment
Institute for Sustainable
Infrastructure
Water Environment
Federation
WateReuse Association

Inge Wiersema, PE, ENV SP
Inge Wiersema is an environmental engineer with 28 years of experience and is spe- cialized in delivering integrated One Water solutions build on decades of water re- sources and utility master planning experience involving potable water, recycled wa- ter, wastewater, groundwater, and stormwater systems. She has also worked on more than 150 hydraulic modeling projects, as well as various groundwater and watershed management plans, water supply studies, and climate vulnerability assessments. Inge has extensive stakeholder engagement and facilitation experience from her work on many One Water Planning efforts for utilities across the US.

Recently, Inge’s has been focused on large strategic integrated planning efforts, in- cluding extensive stakeholder engagement with facilitation of diverse groups, climate change and resilience planning, and she led several One Water Plans.

Relevant Experience
 Project manager for the City of Torrance,
California, Water Quality Stormwater Man-
agement Plan. The project included devel-
opment and calibration of a water quality
storm drain model in XP SWMM, which was
used to analyze pollutant loads and storm-
water flows during storm events and identify
best management practices to comply with
total maximum daily load (TMDL) regula-
tions. Pollutant loads were projected using
satellite imagery. A capital improvement
plan and financing plan were prepared. In
addition, the project included preparation of
monitoring plans for the nutrient and toxics
and PCBs TMDLs for Machado Lake.
 Project manager for the City of Hugh-
son, California, Storm Drain Master Plan.

The project included development of storm
drain models in H2OMAP SWMM®, storm-
water flow projections, model calibration
with field data, hydraulic analysis, and prep-
aration of a capital improvement plan. Pro-
ject findings were documented in a com-
prehensive report.
 Project manager for the City of South
Pasadena, California, One Water 2050 Plan.

This first-ever master plan for the City en-
compasses its water, wastewater, and
stormwater systems and explores the feasi-
bility of a recycled water system. Hydraulic
models and system GIS updates were devel-
oped for water, recycled water, and sewer
systems. Stormwater management oppor-
tunities to meet total maximum daily loads
were combined in the Plan. The phased
capital improvement program will guide the
City with investments through 2050.
 Technical advisor for the City of Morro
Bay, California, One Water Morro Bay. This
project involved development of a strategic
plan that considered the challenges and so-
lutions of the City’s wastewater treatment
plant upgrade, development of local water
supplies (including groundwater, indirect
potable reuse, and ocean desalination), wa-
ter conservation strategies, and stormwater
in a comprehensive manner. Traditional wa-
ter, wastewater, and recycled water utility
master planning with hydraulic modeling
and capital improvement program develop-
ment was also part of the project.
 Project engineer for City of Riverside,
California, Integrated Water Management
Plan. The project identified a supply strategy
to meet the City’s potable and non-potable
water demands through the year 2035 con-
sidering recycled water, groundwater re-
charge, salinity management, water conser-
vation, stormwater, water treatment, new
wells, and groundwater banking projects.
 Project manager for the City of Hugh-
son, California, 2005 Urban Water Manage-
ment Plan. The project was developed as
part of the Integrated Water, Sewer, and
Storm Drain Master Plan project.
 Project manager for the City of Torrance,
California, Machado Watershed Enhanced
Water Management Plan. The project in-
cluded further development of three re-
gional best management practices (BMP)
projects identified in the City’s Stormwater
Quality Management Plan. Field water qual-
ity monitoring data was used to refine the
stormwater model. The project included
BMP modeling, facility sizing, geotechnical
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Inge Wiersema, PE, ENV SP

B/Resumes/LAO/WiersemaInge.docx
borings, utility research, preparation of plan-
view and cross-sectional drawings, and de-
velopment of cost estimates. In addition,
reasonable assurance analysis was con-
ducted and non-structural BMPs were iden-
tified to meet the nutrient and toxics total
maximum daily load for the Watershed.
 Project manager for the City of Pasa-
dena, California, 2008 Arroyo Seco Canyon
Project. The project involved conceptual and
final design of a new intake structure to di-
vert more local stream flows to spreading
basins for groundwater recharge. The pro-
ject also included siting and design of new
spreading basins, restrooms, recreational fa-
cilities, and educational displays, as well as
river restoration plans. Environmental docu-
ments and final design package were pre-
pared for this first Los Angeles Integrated
Regional Water Management Plan project.
 Project manager for the City of Palo
Alto, California, One Water Plan. The focus
of this plan is development of a climate
change resilient water supply strategy with a
diversified supply portfolio to reduce the
City’s current dependence on 100% im-
ported water from the San Francisco Public
Utilities Commission. The project involved
identification, screening, and evaluation of
25 supply options into 4 supply portfolios. A
custom excel tool was developed to con-
duct multi-criteria analysis under various hy-
drologic scenarios.
 Project engineer for the County of Los
Angeles, California, Sun Valley Watershed
Pilot Studies. As part of the Sun Valley Wa-
tershed Management Plan, five pilot pro-
jects were identified to demonstrate an al-
ternative approach for storm drains to ob-
tain flood control with multiple benefits,
such as recreation, education, and water
quality enhancement of urban runoff. Re-
sponsible for technical content of five pilot
study reports and coordination with two
subconsultants. The reports included con-
ceptual/preliminary design of flood control
and water reuse systems, water treatment,
monitoring, benefit analysis, landscape
drawings, and capital and operations and
maintenance cost estimates.
 Technical advisor for the City of Oxnard,
California, 2015 Comprehensive Integrated
Master Plan. The project resulted in a long-
term strategy and capital improvement pro-
gram for the City's water, wastewater, recy-
cled water, and stormwater facilities, includ-
ing a proposed aquifer storage and recov-
ery program. Served as technical lead on
the water master plan portion, which in-
cluded water demand forecasting, hydraulic
modeling analysis using WaterGEMS, exist-
ing and future system analysis, and devel-
opment of a water system capital improve-
ment program, including a rehabilitation
and replacement program.
 Project engineer for the Los Angeles De-
partment of Water and Power, California,
Ballona Creek Watershed Management
Plan. The project objective was to retain,
treat, and recharge stormwater while ex-
panding natural and recreational opportuni-
ties in the 130-square-mile watershed. The
project included development of a water-
shed GIS, identification, and cost estimates
of seven demonstration projects, develop-
ment of a long-term watershed monitoring
program, stakeholder involvement, and
identification of funding sources. The Wa-
tershed Management Plan summarized
project findings and set forth a strategy to
achieve an ecologically stable watershed.

Assistant project manager for the County of
Los Angeles, California, Sun Valley Water-
shed Management Plan. Responsible for
overseeing all technical tasks, managing the
project budget, updating the project sched-
ule, preparing progress reports, and coordi-
nating work internally and with three sub-
consultants. The project involved investiga-
tion of an alternative approach to the tradi-
tional storm drain solution to address flood-
ing conditions in the Sun Valley Watershed.

The proposed solution included $150 million
in capital improvement projects that ad-
dressed the primary flooding problem, while
achieving other objectives, such as increas-
ing recreation, reducing flows to the Los An-
geles River, providing groundwater re-
charge, reducing stormwater pollution, en-
hancing habitat, and increasing energy con-
servation.

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Education
BS Civil Engineering,
California State
University, Fresno, 2006
Licenses
Civil Engineer, Nevada,
California
Professional
Affiliations
American Water Works
Association
California Water
Environment Association
– Central San Joaquin
Section

Ryan F. Orgill, PE
Ryan Orgill has 18 years of experience in master planning, hydraulic modeling, sewer system management planning, urban water management planning, and geographic information systems (GIS). He serves as Carollo’s companywide lead for sewer system modeling, calibration, and system analysis and specializes in creating and calibrating hydraulic models, developing analysis criteria, and evaluating existing water systems.

In addition, Ryan developed Carollo’s means and methods for sewer system planning that have been adopted company-wide and is an expert in delivering projects that in- corporate all critical elements of collection system capital program needs.

Relevant Experience
 Project manager for the Padre Dam Mu-
nicipal Water District, California, 2020 Com-
prehensive Facilities Master Plan Update.

This integrated master plan involves updat-
ing the District’s water, wastewater, and re-
cycled water infrastructure. The project in-
cludes (recycled) water demand/sewer flows
forecasting, water supply analysis, hydraulic
modeling updates for the water and recy-
cled water systems, development and cali-
bration of a new sewer model, and field
condition assessment of key facilities with
operations staff.
 Project manager for the City of St Hel-
ena, California, Integrated Utilities Master
Plan.
 Project manager/project engineer for
the Padre Dam Municipal Water District’s
2001 Integrated Facility Plan that addressed
water, wastewater, and recycled water
needs through 2020.
 Project manager for the City of Scotts
Valley, California, Sewer Master Plan. As part
of the project, Carollo developed a collec-
tion system hydraulic model of the City’s
sewer system and conducted a capacity
analysis of the system under existing and fu-
ture flow conditions.
 Project manager for City of Chino Hills,
California, Citywide Wastewater Master Plan
Update. This ongoing project will update
and evaluate the City’s wastewater collec-
tion system hydraulic model. The project
scope also included coordinating with a
pipe inspection contractor to inspect up to
20 miles of pipeline.
 Project manager for the ongoing South
Tahoe Public Utility District, California, Sewer
System Hydraulic Model. No changes or up-
dates had been made to the District’s
wastewater collection system model that
was created 10 years ago using the Innovyze
InfoSewer hydraulic modeling software. In
the last decade, additional infrastructure
construction and collection system changes
have been made. This contract allowed for
on-call hydraulic modeling support to eval-
uate the existing model, identify potential
improvements, and convert the model to
InfoSWMM.
 Project engineer for the City of Tulare,
California, Storm Drainage System Master
Plan. Responsible for hydraulic model crea-
tion, development of analysis criteria, evalu-
ation of the existing storm drain collection
system, development of improvement pro-
jects to mitigate existing deficiencies and
serve future growth, and development of a
staged capital improvement plan.
 Staff engineer for the City of Galt, Cali-
fornia, Storm Drainage System Master Plan.

Responsible for development of capital im-
provements to the storm drainage system
to serve future growth within the study area,
assistance with preparation of the Master
Plan report, and development of a staged
capital improvement plan.
 Staff engineer for the City of Hughson,
California, Storm Drainage System Master
Plan. Responsible for recommending future
improvements using InfoSWMM® hydraulic
modeling software to account for future
growth of the City, development of a staged
capital improvement program, and assis-
tance with preparation of the Master Plan
report.
 Project manager for the University of
California, Santa Cruz, Sewer Meter Re-
placement Evaluation and Plan. The project
includes development of alternatives to re-
place the sewer meter vault.

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 Project engineer for the City of Morro
Bay, California, OneWater Morro Bay Plan.

Responsible for overseeing the develop-
ment of hydraulic models of the water dis-
tribution, sewer collection, and storm drain-
age systems. Improvement projects and a
capital improvement plan were developed
to mitigate capacity deficiencies.
 Project engineer for the City of Porter-
ville Integrated Master Plan for water,
wastewater, and storm drainage. The
wastewater element also included an evalu-
ation of the condition of the wastewater
treatment plant. Carollo conducted a water
demand analysis by looking at historical wa-
ter production and consumption data as
well as conducting an evaluation of per cap-
ita consumption.
 Project engineer for the City of Hugh-
son, California, Sewer System Management
Plan, which was developed as part of the
City’s Water, Sewer, and Storm Drainage
Master Plan project. The project involved
development of many of the SSMP ele-
ments, including a system evaluation and
capacity assurance plan, overflow emer-
gency response plan, and a fats, oils, and
grease control plan.
 Hydraulic modeling lead for the City of
Modesto, California, Wastewater Collection
System Master Plan. The hydraulic model
was originally constructed in H2OMap
Sewer as part of the previous master plan. In
advance of the wastewater collection sys-
tem master plan update, the City contracted
with Carollo to convert the hydraulic model
from H2OMap Sewer to the more advanced
InfoSWMM platform. Responsible for up-
dating and recalibrating the InfoSWWM hy-
draulic model, which involved more sophis-
ticated simulation of storm drainage system
cross connections within the InfoSWMM
model. Also responsible for developing ex-
isting and future wastewater flow projec-
tions, improvement alternatives to mitigate
existing capacity deficiencies and serve fu-
ture growth, and a capital improvement
plan.
 Project engineer for the City of Tulare,
California, Sewer, Water, and Storm Drain-
age Master Plans and Sewer System
Management Plan. Tasks included creation
and calibration of a dynamic hydraulic
sewer system model to evaluate flow moni-
toring data, development of flow routing
criteria, and evaluation of the existing sani-
tary sewer system to mitigate deficiencies
and serve future growth.
 Project engineer for the City of Turlock,
California, Sanitary Sewer and Storm Water
Master Plans. Responsible for overseeing
the construction of the City’s sewer and
storm drainage system hydraulic models.

The City’s sewer collection system includes
numerous direct storm drainage connec-
tions to the sewer system in the City’s
downtown area. As part of the analysis, sev-
eral improvement alternatives were consid-
ered to alleviate capacity deficiencies in
most of the sewer collection system in the
downtown area, including replacing existing
sewer pipelines with larger diameter sewers
or removal of the direct storm drainage
connections to the sewer. Costs associated
with each alternative were prepared and
presented to City staff, along with the pros
and cons of each approach. Ultimately, the
City’s preferred alternative was to segregate
the sewer and storm drainage collection
systems. Preferred improvements to the
sewer and storm drainage systems were in-
corporated into the Sanitary Sewer and
Storm Water Master Plan reports.
 Staff engineer for the City of Galt, Cali-
fornia, Wastewater Collection, Water Distri-
bution, and Storm Drainage Master Plans.

Responsible for calibration of the hydraulic
computer model to both dry weather and
wet weather conditions, assistance with
preparation of the Master Plan report, and
development of a staged capital improve-
ment plan for the City.
 Sewer lead for El Toro Water District
Master Plan Update, El Toro, California. The
project includes the development and cali-
bration of water and sewer hydraulic mod-
els, development of CIP, and a master plan
report. The water system evaluation in-
cludes an energy evaluation, water quality
evaluation, and impact of new facilities on
the water system.

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Education
MS Environmental
Engineering, University of
California, Berkeley, 2005
BS Civil Engineering,
California State
University, Fresno, 2003
Licenses
Civil Engineer, California,
Nevada
Professional
Affiliations
Nevada Water
Environment Association
American Water Works
Association

Timothy J. Loper, PE
Timothy Loper has 21 years of experience in wastewater collection system modeling, water distribution system modeling, water system feasibility studies, wastewater treatment facilities planning, and infrastructure master planning. He is Carollo’s Infra- structure Master Planning Services Lead and has served as project manager and/or project engineer for more than 90 water, wastewater, stormwater, and/or recycled water master plans and modeling projects, with a focus on helping agencies develop capital improvement programs that help prioritize rehabilitation and replacement projects, as well as integrate capital with inspection and funding prioritization.

Relevant Experience
 Project manager for City of Tulare, Cali-
fornia, Sewer, Water, and Storm Drain Mas-
ter Plans and Sewer System Management
Plan. The project developed master plan-
ning documents for infrastructure improve-
ments to serve rapid growth within the City.

Responsible for coordination of the water,
sewer, and storm drain computer models
that integrate GIS databases into the mod-
eling platform. The wastewater collection
system included industrial and domestic
collection systems with separate treatment
facilities. The storm drain task required co-
ordination with the Tulare Irrigation District
for discharge of storm water from the City’s
drainage facilities.
 Project manager for the City of Turlock,
California, Sanitary Sewer, and Storm Water
Master Plans. Responsible for overseeing
construction of the City’s sewer and storm
drainage system hydraulic models. The
sewer collection system includes numerous
direct storm drainage connections to the
sewer system in the City’s downtown area.

Several improvement alternatives were con-
sidered to alleviate capacity deficiencies in
much of the downtown sewer collection
system, including replacing existing sewer
pipelines with larger diameter sewers or re-
moving the direct storm drainage connec-
tions to the sewer. Costs associated with
each alternative were prepared and pre-
sented to City staff, along with the pros and
cons of each approach. Ultimately, the City’s
preferred alternative was to segregate the
sewer and storm drainage collection sys-
tems. Preferred improvements to the sewer
and storm drainage systems were incorpo-
rated into the Sanitary Sewer and Storm
Water Master Plan reports.
 Principal-in-charge for the City of Por-
terville Integrated Master Plan for water,
wastewater, and storm drainage. The
wastewater element also included an evalu-
ation of the condition of the wastewater
treatment plant. Carollo conducted a water
demand analysis by looking at historical wa-
ter production and consumption data as
well as conducting an evaluation of per cap-
ita consumption.
 Project engineer for the City of Morro
Bay, California, OneWater Morro Bay Master
Plan. The project included water system field
data gathering (pressure logger installation,
SCADA system data gathering, and fire flow
test data). That information, combined with
the City's GIS and as-built drawings, was
used to develop dynamic hydraulic (water
and sewer) and hydrologic (stormwater)
models for those systems. The calibrated
models were used to evaluate each system
under current and future scenarios. Based
on the evaluation, deficiencies were identi-
fied and associated improvements neces-
sary to eliminate these deficiencies were de-
termined.
 Project engineer for the East Bay Dis-
chargers Authority (EBDA), California, Sys-
tem Flow Master Plan. The project involved
construction of a hydraulic model of the
EBDA system that incorporated influent
flows from member agencies. Member
agencies include the City of San Leandro,
Union Sanitary District, City of Hayward, Liv-
ermore Amador Valley Water Management
Agency, and Oro Loma Sanitation District.

Responsible for analysis of historical rainfall
events over the EBDA service area to deter-
mine calibration storm events and design
storm frequency for analysis of system ca-
pacity. Also oversaw the hydraulic model
construction and development of short and
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long-term standard operating procedures
for system operation during wet weather
events.
 Project manager for El Toro Water
District Master Plan Update, El Toro,
California. The project includes the
development and calibration of water and
sewer hydraulic models, development of
CIP, and a master plan report. The water
system evaluation includes an energy
evaluation, water quality evaluation, and
impact of new facilities on the water system.
 Project manager for the El Dorado Irri-
gation District, California, Integrated Water
Master Plan Update. Carollo worked closely
with District staff to update the existing hy-
draulic model in InfoWater. A significant
amount of data scrubbing was needed to
create a hydraulic model that accurately
represents the existing system and its per-
formance. Portions of the system are iso-
lated from the main system, while other sys-
tems are fed off two main transmission
mains that are more than 25 miles long.

Carollo created a water system schematic of
the entire water system so all facilities are
properly represented in the model.
 Project engineer for the City of Modesto,
California, Wastewater Collection System
and Treatment Master Plan Update. Re-
sponsible for construction of the wastewater
collection system hydraulic computer model
using the City’s existing maps and GIS data-
base. Also responsible for collection system
analysis to determine appropriate flow
monitoring locations and sewer basin deter-
mination and assistance with the collection
system condition assessment. Performed
GIS data verification and updated existing
data-bases to reflect current conditions.

These responsibilities required the applica-
tion of GIS and hydraulic modeling software.
 Quality control engineer for the Padre
Dam Municipal Water, California, 2015
Comprehensive Master Plan. This integrated
master plan involved the District’s water,
wastewater, and recycled water infrastruc-
ture. The project included potable and recy-
cled water demand and sewer flows fore-
casting, water supply analysis, hydraulic
model updates for water and recycled water
systems, development and calibration of a
new sewer system model, and field condi-
tion assessment of key facilities. In addition,
the feasibility of the wastewater plant ex-
pansion for an indirect potable reuse project
was evaluated. Findings were incorporated
in a comprehensive capital improvement
plan and water master plan report.
 Project manager for the Integrated Util-
ity Master Plan, City of St. Helena, California.

Developed a 20-year CIP and operational,
business process, and asset management
recommendations.
 Project manager/project engineer for
the Oyster Point Business Park Redevelop-
ment Environmental Impact Report Utility
Study. Responsible for day-to-day project
management and client contacts, technical
direction, and analysis. Used the existing
sewer system model developed as part of a
previous project to determine impacts to
the sewer system. Directed the analysis of
the impacts on the existing storm drainage
system and determined the requirements of
the NPDES Provision C3 that specifies storm
drainage requirements during and after re-
development projects are implemented.

Conducted a study of water supply issues
related to the San Francisco Public Utilities
Commission and interim supply limitations
on wholesale customers and how they af-
fect water providers in the San Francisco
Bay Area.
 Collection system lead for the City of
Grand Junction, Colorado, Persigo
Wastewater Treatment Plant Master Plan
Development. The project involved devel-
opment of a flow monitoring program to
collect data on system flows and calibrate
them to wet weather system response. Car-
ollo developed an InfoSWMM model based
on the City’s GIS. Responsible for scope de-
velopment, quality control, and review of
deliverables.
 Performed engineering tasks for several
other projects in California, including the
City of Gilroy Water, Wastewater, and Storm
Drainage Master Plans; City of Hanford Ur-
ban Water Management Plan; and City of
Pleasanton Wastewater Collection System
Master Plan.

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Education
MS Civil and
Environmental
Engineering, University of
Wisconsin, 2001
BS Civil and
Environmental
Engineering, University of
Wisconsin, 2000
Licenses
Professional Engineer,
Wisconsin
Professional
Affiliations
Water Environment
Federation
Technical Conference
Stormwater Symposium
Co-Chair
Technical Conference
Workshop Stormwater
Liaison
Stormwater Committee

American Public Works
Association
Wisconsin Chapter
Water Resources Chair
Engineers Without
Borders
Caroline J. Burger, PE
Caroline Burger has 23 years of experience in water resources engineering working with public and private clients. Her expertise includes urban hydrologic, hydraulic, and nonpoint source pollution modeling; stormwater utility development; and program management. Her experience also includes stormwater quality facility design, such as water quality ponds, biofilters, engineered vegetated swales, and other green infrastructure practices. She has developed municipal stormwater management plans and stormwater utility studies. She has also conducted hydrologic, hydraulic, and scour analyses of existing and proposed structures and floodplains using software, such as XP-SWMM 1D/2D, PC-SWMM 1D/2D, InfoSWMM 1D/2D, EPA-SWMM, Flo-2D, and HEC-RAS 1D/2D. Caroline is well versed in several software programs and is a co-developer of WinSLAMM and WinDETPOND software.

Relevant Experience
 QA/QC for the Harris County Flood
Control District, Texas, Channel Conveyance
Improvements along Goose Creek and
Stormwater Detention Basin – Phase 1. The
goal of the overall project is to improve
conveyance along the stream channel. The
project includes 1.65 miles of earthen
channel improvements within a developing
area and two stormwater detention basins
that will provide flooding relief and
mitigation for any adverse impacts caused
by the channel improvements. Carollo’s
effort includes extensive data collection,
hydrologic and hydraulic (H&H) modeling
to compare alternatives (HEC-HMS and
HEC-RAS 2D), and recommendations for
detailed design, among other things.
 Project manager for the City of Madison,
Wisconsin, Spring Harbor Watershed
Modeling. The City initiated a
comprehensive watershed study program in
2018 following two devastating floods.

Spring Harbor was one of the first
watersheds studied, starting in 2019. Since
the original watershed modeling, various
changes have occurred, resulting in the City
choosing to update the existing and
proposed conditions modeling and revise
the selected alternative. Alternatives include
both conveyance and water quality
infrastructure improvements. The City has
in-house computer modeling staff, however,
they required additional staff that have
watershed planning and stormwater
modeling advanced expertise.
 Modeling lead for the City of Waco,
Texas, Brook Oaks Neighborhood
Stormwater Master Plan. The goal of the
project is to evaluate the causes of flooding
and then develop solutions to reduce flood
risk. The neighborhood has a mix of open
and closed channel stormwater conveyance.

PC-SWMM 1D/2D was selected as the
modeling software for the project.
 Project engineer for projects which
involved development of peak flows from
the drainage basin(s) to each structure
(bridge or culvert or multiple) for various
design storm events using several methods
(SCS, USGS Regression Equations,
Comparison Basin Analysis). WSPRO, HY8,
or HEC-RAS models of the stream
surrounding the culvert(s) or bridge(s) were
developed or revised to evaluate the effect
placing a new structure, or replacing a
structure, would have on the water surface
elevations. Where necessary, temporary
structures were sized for large streams for
the construction period.
 Engineer for several projects involving
generated hydrologic parameters for
existing and/or future conditions and then
constructing hydrologic and hydraulic
models of the existing stormwater
conveyance system. Alternatives were then
evaluated to recommend solutions for the
areas of concern.
• Project manager for the City of
Brookfield, Wisconsin, Brookfield
Stormwater Management Plan Update.
• Watershed Stormwater
Management Plan.
• Project manager and quality control
reviewer for the City of Oshkosh,
Wisconsin, West Snell Road Stormwater
Analysis.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Caroline J. Burger, PE

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Awards
City of Madison TeamCity
Award, Public Works
Team – Watershed Study
Program, 2022
Wisconsin Chapter
American Public Works
Association Project of the
Year, Emergency
Infrastructure Upgrades –
Waite Circle Culvert
Improvements, 2020
National Public Works
Association Project of the
Year Emergency
Infrastructure Upgrades –
Waite Circle Culvert
Improvements, 2020
Other
Accomplishments
Lead contributor for the
Water Environment
Federation’s Stormwater,
Watershed, and Receiving
Water Quality Modeling
publication.

• Lead engineer for the City of
Appleton, Wisconsin, Spartan Avenue
Stormwater Management Plan.
• Project manager and quality control
reviewer for the City of Oshkosh,
Wisconsin, Fernau Avenue Stormwater
Study.
• Project engineer for the City of
Appleton, Wisconsin, Citywide Storm
Water Management Plan.
• Project engineer for the City of
Platteville, Wisconsin, Storm Water Plan
and Utility.
• Project engineer for the City of
Waupun, Wisconsin, Stormwater
Management Plan.
• Project engineer for the City of
Madison, Wisconsin, Lower Badger Mill
Creek Stormwater Management Plan.
 Project manager and engineer lead for
the City of Brookfield, Wisconsin,
Stormwater Management Plan Update.

Caroline managed and led the technical
effort to update water quality modeling for
the City’s stormwater management plan.

The previous planning effort focused on
meeting the requirement to reduce total
suspended solids by 40 percent from
existing developed areas. This plan update
updated the previous effort and also
included an analysis to meet the waste load
allocations for the City’s five reachsheds
assigned by the Milwaukee River Total
Maximum Daily Load (TMDL). The project
included pollution analysis of conditions
without any stormwater control measures,
with existing stormwater controls measures,
and with proposed stormwater control
measures. The City has a unique
circumstance such that part of the City
discharges to streams with a current TMDL
and the other part discharges to streams
without a TMDL at this time. A city-wide
hydrologic and hydraulic model was also
developed as part of this project to
analyzed deficiencies in the capacity of the
conveyance system.
 Project manager and lead engineer for
the City of Wausau, Wisconsin, Stormwater
Management Plan Update. Caroline
managed and led the technical effort to
update the City’s stormwater management
plan. The previous planning effort focused
on meeting the requirement to reduce total
suspended solids by 40 percent from
existing developed areas. This plan update
updated the previous effort and also
included an analysis to meet the waste load
allocations for the City’s six reachsheds
assigned by the anticipated Wisconsin River
Total Maximum Daily Load.
 Project manager and lead engineer for
the City of Stevens Point, Wisconsin,
Stormwater Management Plan Update.

Caroline managed and led the technical
effort to update the City’s stormwater
management plan. The previous planning
effort focused on meeting the requirement
to reduce total suspended solids by 40
percent from existing developed areas. This
plan update updated the previous effort
and also included an analysis to meet the
waste load allocations for the City’s five
reachsheds assigned by the anticipated
Wisconsin River Total Maximum Daily Load.
 Lead engineer for the City of Beloit,
Wisconsin, Stormwater Management Plan
Update. Caroline led the technical effort to
update the City’s stormwater management
plan. The previous planning effort focused
on meeting the requirement to reduce total
suspended solids by 40 percent from
existing developed areas. This plan update
updated the previous effort and also
included an analysis to meet the waste load
allocations for the city’s two reachsheds
assigned by the Rock River Total Maximum
Daily Load.
 Project manager and lead engineer for
the City of Janesville, Wisconsin, Stormwater
Management Plan Update. Caroline
managed and led the technical effort to
update the City’s stormwater management
plan. The previous planning effort focused
on meeting the requirement to reduce total
suspended solids by 40 percent from
existing developed areas. This plan update
updated the previous effort and also
included an analysis to meet the waste load
allocations for the City’s seven reachsheds
assigned by the Rock River Total Maximum
Daily Load.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

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Education
BS Civil & Environmental
Engineering, University of
South Florida, 2012
BS Microbiology,
University of South
Florida, 2006
Licenses
Civil Engineer, California
Professional
Affiliations
American Society of Civil
Engineers
- Truckee Meadows
Branch YMF Director
at Large 2016-2017
Florida Water
Environment Association
- Manasota Chapter YP
Coordinator 2013-
2014
- Students and Young
Professionals
Committee Chair
2014-2016
ACE Mentors of Sarasota,
Treasurer 2014-2015
Danielle M. Orgill, PE
Danielle Orgill has 10 years of experience in infrastructure design, modeling, and planning. She has assisted with master planning and evaluation studies for storm drain, sewer, and water systems, and has background in data management, analysis, hydraulic modeling, and GIS. She has extensive knowledge with a variety of water and wastewater collection hydraulic modeling packages.

Relevant Experience
 Hydraulic modeling for the City of Morro
Bay, California, OneWater Morro Bay Plan.

Responsible for coordinating project execu-
tion and subconsultant activities for flow
and water quality investigation of the South
Truckee Meadows Water Reclamation Facil-
ity and Spanish Springs service areas. A de-
tailed analysis of storm impacts, infiltration,
and inflow in the identified services areas
was necessary to address current flow and
water quality issues and to confirm ade-
quate conveyance capacity would be availa-
ble as new growth occurs in Washoe
County.
 Project engineer for the ongoing
Truckee Sanitary District, California, 2017 Hy-
draulic Modeling Assistance. The District
hired Carollo to provide assistance with de-
velopment and calibration of three of the
four existing wastewater collection system
models. The models are being calibrated to
peak dry and peak wet weather flow condi-
tions using flow monitoring data from the
2016 and 2017 storm season.
 Project manager for the Manatee
County, Florida, 2022 Wastewater Collection
System Master Plan Updates. This project is
to update the 2018 Wastewater Collection
System Master Plans, including revisions to
the County's level of service and population
projections, updating, and calibrating the
hydraulic models, and evaluating the collec-
tion system under existing and anticipated
future flow conditions. Updates to the
County's CIP through 2040 will also be in-
cluded.
 Project engineer for Vallejo Flood and
Wastewater District, California, Wastewater
Collection System Master Plan Update. This
project is ongoing and involves a condition
assessment of more than 375 miles of col-
lection system pipeline. Pipelines were
grouped into inspection and replacement
years based on condition scores and/or age
and estimated remaining useful life for a
comprehensive long-term rehabilitation and
replacement program. The project also in-
cludes a hydraulic analysis of pipes 10 inches
and larger to identify capacity deficiencies
and develop recommended improvements.
 Project engineer for City of Pinole, Cali-
fornia, Sanitary Sewer Master Plan Update.

The City is required to inspect and record
the condition of every pipeline by March
2023. Carollo is developing an inspection
program to assist the City in meeting this
requirement. The program will involve coor-
dinating with a contractor to inspect a large
portion of the City’s pipelines (approxi-
mately 50 miles in total length).
 Project engineer for City of Chino Hills,
California, Citywide Wastewater Master Plan
Update. This ongoing project will update
and evaluate the City’s wastewater collec-
tion system hydraulic model. The project
scope also included coordinating with a
pipe inspection contractor to inspect up to
20 miles of pipeline. Responsible for evalu-
ating the City’s existing collections system
and providing a recommended list of priori-
tized pipelines for inspection.
 Project engineer for the South Tahoe
Public Utility District, California, Sewer Sys-
tem Hydraulic Model. Work completed to
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Danielle M. Orgill, PE

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date on this ongoing project includes devel-
oping a permanent flow monitoring pro-
gram, evaluating flow monitoring data to
determine ADWF and wet weather compo-
nents for each basin, converting the Dis-
trict’s hydraulic model from InfoSewer to In-
foSWMM, updating the hydraulic model
based on recent GIS, calibrating the hydrau-
lic model based on data gathered from the
permanent flow monitoring program, evalu-
ating the existing collection system and
identifying recommended capacity im-
provements, and conducting hydraulic
model training for District staff.
 Project engineer for the City of Reno,
Nevada, Northwest Reno Sewer Capacity
Analysis and Master Plan. Carollo was re-
tained to conduct a sanitary sewer capacity
analysis and develop a master plan for the
City’s Northwest area. The team developed
a temporary flow monitoring program; re-
viewed the existing SewerGEMS model to
expand the City’s wastewater collection sys-
tem hydraulic computer model, including
nine major trunk lines; calibrated the model
using flow monitoring data; reviewed plan-
ning documents to determine existing and
buildout wastewater flow projections; mod-
eled existing and future system capacity
evaluations; and developed prioritized, rec-
ommended capacity projects based on defi-
ciencies.
 Project engineer for the ongoing
Truckee Sanitation District, California, Hy-
draulic Model Updates. Responsible for
evaluating and updating three separate san-
itary sewer hydraulic models (InfoSewer),
calibrating the model under dry and wet
weather conditions, evaluating the collec-
tion system under existing and buildout
flows, and identifying improvements neces-
sary to mitigate capacity deficiencies.
 Project engineer for the ongoing Collier
County, Florida, Wastewater Collection Sys-
tem Model Update. Responsible for con-
verting the SewerGEMS (Bentley) model to
InfoSWMM (Innovyze), calibrating the
model under dry and wet weather condi-
tions, evaluating the existing collection sys-
tem, and developing future scenarios (to be
evaluated under separate work assignment).
 Project engineer for the City of King City,
California, Wastewater Collection System
Master Plan. Responsible for hydraulic
model development and calibration under
dry and wet weather conditions, evaluation
of existing infrastructure, development of a
capital improvement plan to mitigate exist-
ing deficiencies and serve future growth,
and development of the master plan report.
 Modeler for the City of Riverside, Califor-
nia, Comprehensive Wastewater Master
Plan, which included both treatment and
wastewater collections. Carollo built the
City’s collection system model using the In-
novyze InfoSWMM modeling software.
 Project engineer for the City of Cotati,
California, Sewer System Master Plan Ad-
dendum. Responsible for flow monitoring
data review; hydraulic model update and
calibration; evaluation of previously identi-
fied improvements under existing, near-
term, and buildout conditions; update of the
capital improvement plan; and develop-
ment of a technical report.
 Project engineer for the City of Boynton
Beach, Florida, Utilities Management Opti-
mization Plan. Responsible for constructing
and calibrating the wastewater collection
system hydraulic model, evaluating existing
infrastructure, identifying future infrastruc-
ture improvements, and developing a capi-
tal improvement plan.
 Project engineer for the Manatee
County, Florida, Wastewater Collection Sys-
tem Master Plans. Responsible for coordi-
nating field testing with a subcontractor (to
install temporary flowmeters and pressure
loggers), updating and calibrating complex
collection system models for three service
areas in SewerGEMS software (each with 150
or more active lift stations), and determining
future infrastructure requirements for the
2020, 2025, 2035, and buildout planning
periods based on model results. Assisted
the project manager in preparing recom-
mended capital improvement projects and
completing the final master plan report.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

Education
BS Civil Engineering,
University of Nevada,
Reno, 2017
Licenses
Professional Engineer,
Nevada

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Grace N. Mitzel, PE
Grace Mitzel joined Carollo in 2015 as an engineering intern and began full time in 2017 as a staff professional for infrastructure planning. She assists with development and analysis of water, wastewater, and stormwater collection systems, as well as de- velopment of technical memoranda for evaluation of system information and data and model analysis.

Relevant Experience
 Staff professional for the City of Morro
Bay, California, OneWater Morro Bay Engi-
neering and Planning. Responsible for de-
veloping a stormwater hydrologic model,
assisting with calibration of the hydraulic
water model, and assisting with develop-
ment of the project technical memoranda.
 Staff professional for the City of Porter-
ville, California, Integrated Master Plan. Pro-
vided engineering services for preparation
of sanitary sewer, water system, and storm
drain master plans; recycled water feasibility
study; and storm water resources plan. Re-
sponsible for assembling and calibrating the
hydraulic water model and assisting with
development of a water distribution system
master plan and capital improvement plan.
 Staff professional for the City of Lem-
oore, California, Water, Sewer, and
Wastewater Treatment Master Plan. Re-
sponsible for assistance with development,
assembly, and calibration of the hydraulic
water model; assistance with a system anal-
ysis and recommendations for system en-
hancements; and assistance with develop-
ment of the Water Master Plan report.
 Staff professional for the City of Scotts-
dale, Arizona, Integrated Water Resources
Master Plan. This project consists of a com-
prehensive update of the City’s previous
IWRMP, which was over a decade old, and
subsequent water and reclamation master
plans. The new IWRMP established the
framework to meet the City’s future water
resources, water quality, and water infra-
structure needs through the planning hori-
zon of 2055.
 Staff professional for Vallejo Flood and
Wastewater District, California, Wastewater
Collection System Master Plan Update. This
project is ongoing and involves a condition
assessment of more than 375 miles of col-
lection system pipeline. Pipelines were
grouped into inspection and replacement
years based on condition scores and/or age
and estimated remaining useful life for a
comprehensive long-term rehabilitation and
replacement program. The project also in-
cludes a hydraulic analysis, using InfoWorks
ICM, of pipes 10 inches and larger to identify
capacity deficiencies and develop recom-
mended improvements.
 Staff professional for the City of West
Sacramento, California, Water Master Plan
Update. The project goal was to identify
capital projects to serve existing customers
and develop a recommended plan for the
projected increase in demand associated
with the City’s General Plan Update. Re-
sponsible for updating the hydraulic model
to include improvements made by the City,
running a fire flow analysis, identifying defi-
cient fire flow nodes, and developing a
memorandum presenting analysis findings.
 Engineering intern for the City of River-
side, California, Comprehensive Wastewater
Master Plan. Responsible for assisting with
hydraulic model development by creating
wastewater loading polygons, as well as as-
sisting with model calibration.
 Engineering intern for the Mountain
House Community Services District, Califor-
nia, Wastewater Treatment Plant Expansion
Wastewater Flow Projections. Responsible
for evaluating wastewater flows to summa-
rize wastewater flow rates and developing
land use based wastewater flow factors.
 Staff professional for the South Tahoe
Public Utility District, California, Hydraulic
Modeling Support. For the water distribu-
tion system model, Carollo developed a hy-
draulic model users guide, conducted
model training, developed a pilot unidirec-
tional flushing program, analyzed the devel-
opment of District Metered Areas for the
Stateline Pressure Zone, and conducted
other modeling-related tasks. For the
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Grace N. Mitzel, PE

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Dt \M k ti \P it \Cli t24(LAO) \Gd \St D i M t Pl

wastewater collection system model, Carollo
converted the District’s existing InfoSewer
model to InfoSWMM, helped the City im-
plement a permanent flow monitoring pro-
gram, calibrated the InfoSWMM model to
dry and wet weather conditions, conducted
an analysis of the system’s response to a
design storm event, and conducted hydrau-
lic model training with the City.
 Staff professional for the Washoe
County, Nevada, Pleasant Valley Interceptor
Reach 3 Preliminary Design. The project in-
volved preliminary design and 30-percent
cost estimates for two alternatives recom-
mended in the alternatives study. Responsi-
ble for conducting an evaluation of the ex-
isting collection system, analyzing the im-
pacts of the Bella Vista Ranch development
on the system and facilities, and preparing a
letter report to present the findings. Addi-
tional responsibilities included updating the
facility plan to include additional facilities
and developing a cost estimate for the ad-
ditional facilities.
 Staff professional for the Santa Cruz
County Sanitation District, California, Phase I
Inflow/Infiltration (I/I) Mitigation Program.

Responsible for developing a temporary
flow monitoring program, providing assis-
tance with an I/I evaluation, recalibrating the
hydraulic model, assisting with a system
analysis, and assisting with preparation of a
technical memorandum.
 Staff professional for the Marin Munici-
pal Water District, California, Pine Mountain
Tunnel Storage Transmission Analysis. Re-
sponsible for inputting facilities and pipe-
lines into the existing hydraulic model, en-
suring each model scenario includes the
proper facilities, and assisting with prepara-
tion of a technical memorandum to present
the findings of the analysis.
 Engineering intern and staff professional
for the Washoe County, Nevada, Pleasant
Valley Interceptor (PVI) Reach 3 and 4 Alter-
natives Study. The study documented the
development and evaluation of alternatives
for PVI Reach 3 and Reach 4 in the South
Truckee Meadows wastewater collection
system, which is operated by the Washoe
County Department of Water Resources.

Intern responsibilities included placing man-
holes on alternative alignments and devel-
oping pipeline alignments for septic user
connection. Staff professional responsibili-
ties included reviewing and editing the tech-
nical memorandum.
 Staff professional for the City of El Paso,
Texas, Boone Siphon Analysis. This project
consisted of conducting a hydraulic analysis
of the existing Boone Siphon to accommo-
date additional flows diverted as part of a
sewer infrastructure project. Staff profes-
sional responsibilities included converting
the hydraulic model from InfoSewer to In-
foSWMM, validating the hydraulic modeling
results, evaluating the hydraulic capacity of
the siphon, and assisting in developing by-
pass recommendations.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E \\IO-BD-1\BD-
Education
BS Environmental
Engineering, University of
Colorado, Boulder, 2013
Licenses
Civil Engineer, Nevada
Certifications
Certificate, Pipeline
Assessment Certification
Program, NASSCO, 2022
Certificate, Lateral
Assessment Certification
Program, NASSCO, 2022
Certificate, Manhole
Assessment Certification
Program, NASSCO, 2022
Professional
Affiliations
American Society of Civil
Engineers, Truckee
Meadows Branch
YMF President 2020 &
2021
YMF Vice President
2019
YMF Director at Large
2017-2018
Water Environment
Federation
Michael W. Wetterau, PE
Michael Wetterau has six years of experience as a member of Carollo’s infrastructure planning group. He assists with the development of water and wastewater master plans through model construction/updates, model calibration, demand/flow projections, capacity analysis, and capital improvement plan development. Michael has completed hydraulic model studies used to confirm preliminary design size, complete alternatives analyses, and evaluate the impacts proposed developments have on existing system. Michael has experience developing strategies for consolidating facilities while ensuring system has sufficient capacity to accommodate changes. In addition, he is certified in NASSCO PACP/LACP/MACP.

Relevant Experience
 Engineer for the City of Chino Hills, Cali-
fornia, Wastewater Master Plan Update. Re-
sponsible for construction of the City’s hy-
draulic computer model using the In-
foSWMM modeling software package,
model calibration, capacity analysis, devel-
opment of improvement projects to miti-
gate capacity deficiencies, leveraged condi-
tion assessment data to develop a sewer re-
habilitation and replacement program, capi-
tal improvement cost estimate, and prepa-
ration of documenting the results of the
analysis.
 Engineer for the City of Santa Barbara,
California, Wastewater Pipe Freeway Cross-
ing Rehabilitation Project. The goal of the
pr
oject is to rehabilitate and consolidate the
n
umber of highway crossings. Responsible
for updating the City’s InfoSewer model.

Used the updated model to verify system
capacity with sewer rehabilitation and pro-
posed new sewer alignments used to con-
solidate highway crossings to ensure the
proposed changes and existing system have
sufficient capacity.
 Staff engineer for the City of Scotts Val-
ley, California, Sewer System Management
Plan, which was updated to meet regulatory
requirements, and changes to the system
since the previous adoption. This is an on-
going project. Responsibilities included the
development of an overflow emergency re-
sponse plan, water quality monitoring pro-
gram, a fats, oils, and grease control plan,
operation and maintenance recommenda-
tions, a prioritized inspection program, an
d
S
ystem Evaluation and Capacity Assurance
Pl
an (SECAP). The SECAP included develop-
ment and calibration of a fully dynamic hy-
draulic model of the sewer collection system
calibrated to both dry weather and wet
weather conditions, evaluation of the collec-
tion system for existing and future design
flow conditions, recommendations for capi-
tal improvements to mitigate deficiencies,
condition assessment of sanitary sewer facil-
ities in the Port, and development of costs
associated with the proposed capital im-
provements.
 Staff engineer for the City of Torrance,
California, Sewer System Management Plan,
which was updated to meet regulatory re-
quirements, and changes to the system
since the previous adoption. As part of the
project, responsibilities included develop-
ment of several supporting documents spe-
cific to the City. These include a SECAP, and
water quality monitoring program. Th
e
S
ECAP included development and calibra-
tion of an InfoSWMM model of the City’s
collection system calibrated to both dry and
w
et weather conditions, evaluation of the
c
ollection system for existing design flow
conditions, recommendations for capital im-
provements to mitigate deficiencies, and
development of costs associated with the
proposed capital improvements.
 Engineer for the City of Salem, Oregon,
Wastewater Flow Data Analysis Phase 2. As-
sisted with the wastewater flow data analysis
for the City and develop capacity evaluation
using the hydraulic model.
 Staff engineer for Tahoe Truckee Sanita-
tion Agency, California, Wastewater Master
Plan. Reviewed historical CCTV and condi-
tion assessment records to develop a sewer
rehabilitation and replacement program.

Assisted with the development of a capital
improvement plan.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Michael W. Wetterau, PE

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 Staff engineer for the City of Morro Bay,
California, OneWater Morro Bay. Responsi-
ble for the development and calibration col-
lection system hydraulic model build and
calibration under dry and wet weather con-
ditions, evaluation of existing infrastructure,
development of a capital improvement plan
to mitigate existing deficiencies and to serve
future growth and assisted with the devel-
opment of the report.
 Staff engineer for the City of Riverside,
California, Comprehensive Wastewater Mas-
ter Plan Update. Responsibilities included
development of future flow projections, hy-
draulic model development and calibration
of the collection system under dry and wet
weather conditions using InfoSWMM, evalu-
ation of existing infrastructure, and develop-
ment of a capital improvement plan to miti-
gate existing deficiencies and to serve future
growth. Developed a sewer replacement
and rehabilitation program based on condi-
tion assessments, and an odor control pro-
gram.
 Staff engineer for Washoe County, Ne-
vada, Pleasant Valley Interceptor (PVI) Alter-
natives Evaluation Study. Responsibilities in-
cluded developing flow projections for pro-
posed developments, using the County's In-
foSWMM model to size the alternative
alignment facilities for Reach 3 and 4 of the
proposed PVI, develop planning level cost
estimates for each alternative, and assisted
with preparation of a report.
 Staff engineer for the Central Contra
Cosa Sanitary District, California, Collection
System Master Plan. The Master Plan ad-
dressed needs over the 20-year horizon for
the existing 40-mgd plant liquids treatment
(including biological nutrient removal
needs), sludge treatment and reuse/disposal
options (including incinerations plus diges-
tion), water reuse, and all other plant facili-
ties. Major plant upgrades and designs are
anticipated to follow the master plan. Re-
sponsible for evaluation of existing infor-
mation and hydraulic modeling.
 Engineer for the Padre Dam Municipal
Water District, Integrated Water Master Plan
Update. Responsible for the capacity analy-
sis of the District’s water distribution system
using InfoWater Pro. Developed capacity
improvements to mitigate existing and fu-
ture system deficiencies.
 Hydraulic modeler for Yorba Linda Wa-
ter District, California, Water System Capac-
ity Analysis. Responsible for the model con-
version from InfoWater to InfoWater Pro,
system evaluation of proposed system
changes under existing demand conditions,
and development of projects to mitigate
deficiencies.
 Hydraulic modeler for the City of
Vacaville, California, Recycled Water System
Capacity Analysis. Responsibilities included
hydraulic model construction and verify fa-
cility sizing.
 Hydraulic modeler for the City of Glen-
dale, California, Hydraulic Model Calibration.

Responsibilities included hydraulic model
update, fire flow calibration, and EPS cali-
bration of the City’s InfoWater model.
 Staff engineer for the City of West Sacra-
mento, California, Hydraulic Model Update.

Responsible for updating the City's In-
foWater model with additional future devel-
opments and evaluating the impacts the
development has on their 2030 demands.
 Staff engineer for the City of Colton, Cal-
ifornia, Water and Wastewater System Mas-
ter Plan Update. The Water and Wastewater
System Master Plan is part of a larger effort
to produce an Integrated Water Master Plan
for the City’s water and sewer systems. The
objective is to serve as a strategic planning
guide for City staff to make decisions and
justify the need for improvements to the
City’s water and wastewater systems with a
planning horizon of year 2040. Responsible
for hydraulic modeling including extended
period simulation calibration and fire flow
calibration, as well as existing system analy-
sis for proposed improvements.
 Provided wastewater treatment technical
assistance to the Crow Indian Tribe in Mon-
tana to upgrade its existing treatment facil-
ity to meet NPDES permit requirements.

Developed an alternatives analysis for po-
tential technologies to treat wastewater and
prepared a 30% engineering design report.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E | 1

Angel Mejia, PE, PMP
Role: Project Manager | Flow Monitoring Field Crew
Education
Bachelor of Science, Civil and Environmental Engineering (Structural Emphasis), Universi ty of California,
Berkeley, 2002
Registration
Registered Professional Engineer, Civil, California, C68949 Registered Project Management Professional
(PMP), 2121936
Registered Professional Engineer, Civil, Arizona
47598, (INACTIVE)
Joined V&A
2015
Total Years of Experience
17 years
Training and Certifications
 Building Code Knowledge: IBC 2015, ASCE 07 -10, ACI
318-11, AISC ASD/LRD, National Design Specifications
(NDS) for Wood Construction
 Confined Space Entry Certified
 CPR with AED & First Aid Certified
Professional Summary

Mr. Mejia has over 17 years of experience as a
structural engineer and project manager in the
planning , design , construction of residential,
commercial, military training, and
telecommunication facilities. During his
employment at V&A, Angel has used his
structural engineering and project management
experience to contribute to the condition
assessment and flow monitoring practice areas.

Over the past four years, Angel has served as a
project manager or project engineer for over 80
flow monitoring projects.

Relevant Experience

Napa Sanitation District Flow Monitoring & I/I
Mitigation Services. Napa, CA
Since 2005, V&A has provided I/I detection and
mitigation services to Napa Sanitation District
(NapaSan), including flow monitoring, I/I
analysis, collection system investigations, smoke
testing, CCTV management , and night -time I/I
reconnaissance. For these projects , V&A has
either contracted directly with NapaSan or has
been a sub -consultant to the master planning
consultant to NapaSan. Our team led flow
monitoring and I/I analysis from 2005 to present
by collecting and analyzing wet/dry flows from
over 20 0 key collection system nodes. This
analysis was critical for the continuing
development and refinement of the City’s I/I
Reduction Program. V&A also performed smoke
testing detect I/I sources, CCTV management in
as a part of the I/I identification and reduction
program, and recently in the past 6 years night -
time I/I reconnaissance studies, often capturing
video evidence of I/I entering into the collection
system. This has led to actionable and immediate
repai rs that have a noticeable effect on the
reducti on of I/I. On a yearly basis, I/I mitigation
construction projects are evaluated for
effectiveness. Pre- construction flows and post -
construction flows are analyze d and evaluated to
determine the percent reduction of I/I caused by
the construction project.

City of Sacramento Sanitary and Combined
System Flow Monitoring. Sacramento, CA
V&A was retained by the City of Sacramento (City)
to perform seasonal flow monitoring on a three -
year contract. The basins, number of sites and
duration has varied year to year. The basins for
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E | 2
flow monitoring are selected by City staff and
focuses on wet weather I/I response for both the
City’s sanitary only collection system as well as
their combined sanitary/storm sewerage system.

In 2017/2018, V&A installed 19 meters for 4
months and 30 meters for 2 months on different
NTPs. In 2018/2019, V&A installed and collected
data at 24 sites for 3 months. In the current
2019/2020 season, V&A has 20 sites installed
for an expecte d 4-month duration. Flow data is
provided in 5 -minute intervals to support City
master planning and CIP projects. Yearly I/I
mitigation construction projects are evaluated for
effectiveness.

West Valley Sanitation District Seasonal Flow
Monitoring and I/I Studies. Campbell, CA.

Since 2011, V&A has provided I/I detection and
mitigation services to West Valley Sanitation
District (District), including flow monitoring, I/I
analysis, and smoke testing. For these projects ,
V&A has contracted directly with the District but
provided and interfaced with the District’s master
planning consultant. These studies are part of an
ongoing effort by the District to reduce its I/I.

V&A performed flow meter and rain gauge
installation and maintenance to ensure quality
assurance and quality control on the flow data.

Data was collected from each gauge on a bi-
weekly basis. The project estimated available
sewer capacity and conducted analyses
pertaining to infiltration and inflow (I/I) occurring
in the basins upstream from the flow monitoring
sites.

West County Wastewater District I/I Reduction
Program. Richmond, CA.

V&A was retained by the West County Water
District (District) to perform seasonal flow
monitoring in 8 basins within the District over the
course of the 4-year span from 2015 -2019. In
2014, Carollo Engineers provided the District a
Master Plan , which identified an Inflow and
Infiltration (I/I) Control and Flow Monitoring
Study that commenced in Fiscal Year
2014/2015. Carollo identified Basins 3, 4, 6, 7,
8, 15, 24 , and 26 as requiring additional I/I
study. This project follows the recommendations
of the Car ollo Master Plan.

City of Redwood City Flow Monitoring and I/I
Study. Redwood City, CA
V&A and TotalFlow performed wet weather
sanitary sewer flow monitoring services within
the City of Redwood City (City) to evaluate the
inflow and infiltration (I/I) rate into the City’s
sanitary sewer system. TotalFlow performed all
the fieldwork while V&A Consulting Engineers
performed project management as well as the
report. The work included flow monitoring;
12 open -channel flow meters at 11 sites and two
rain gauges for eight weeks as well as to confirm
flow balance and hydraulic grade line conditions .

Central Contra Costa Sanitary District Hydraulic
Model Update Flow Monitoring. Martinez, CA
V&A was retained by the Central Contra Costa
Sanitary District (CCCSD) to perform sanitary
sewer flow monitoring at 36 flow monitoring
locations within the District’s interceptor
collection system during the 2014/2015 wet
weather season. The flow monitorin g project
supported the CCCSD’s hydraulic modeling and
master planning projects. Pipe sizes ranged from
12- to 72 -inches in diameter.

V&A conducted follow -up flow monitoring at
70 flow monitoring sites during the 2015/2016
wet weather season (12 -inch to 72- inch diameter
pipe sizes). The basins with the greatest I/I
contribution from the 2014/2015 study were
targeted and the 70 flow meters were generally
focused within these higher priority flow basins,
providing finer resolution to the dynamic model
and providing the District valuable I/I information
to support future I/I mitigation efforts.

City of Redwood City Sanitary Sewer Flow
Monitoring and Data Logging Services.

Redwood City, CA
V&A performed flow monitoring for the City’s
sanitary sewer pump stations. Services included
field reconnaissance, installation, calibration,
maintenance and removal of flow monitoring
equipment and motor control center data logging
equipment for flow moni toring at 28 pump
stations. A final report of the flow monitoring
data (including graphical and tabular of the data)
and thorough documentation of the flow
monitoring sites establishes the baseline
sanitary flows, the peak flow condition and
determines inf low and infiltration (I/I) at the
monitoring sites.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E

JEFF GARCIA

Industry Tenure
2002 - Present

Certification
NASSCO
Pipeline Assessment

30 hour OSHA
10 hour OSHA
Medical
Services First Aid

CPR

Confined Space
Awareness

Education
Bachelor of Arts
Boston College
Jeff is responsible for supervising all phases of condition assessment projects including oversight and training of office and field staff. Jeff has extensive experience working on Sanitary Sewer Evaluation Study projects throughout the Western United States.

Jeff has over 19 years of sewer inspection experience and has experience in all phases of field evaluations. These include manhole inspections, sewer and storm inspections, flow monitoring, dye -test confirmation, smoke testing, building ins pections, cleaning large diameter pipe, GPS surveys and data collection, public relations, field management, quality control and assurance, and safety training. He has his OSHA 10 and 30 Construction Safety Awareness, Medical Services First Aid, CPR and Excavation Safety Training.

Relevant Recent Experience
• Cleaning, Inspecting, and UV Spot Repairs of Truss pipe for San Bernardino County Special Districts.
• Closed-Circuit Televising Services of Sewer Mains and Manholes – Santa Cruz County Sanitation District (Large diameter pipe cleaning and inspection, IBAK SI Manhole MACP Level 2 Inspections)
• City Wide Sewer Line Cleaning, CCTV Inspection and Manhole Inspection – City of San Gabriel, CA (Sewer cleaning and IBAK mainline scanning)
• Large Diameter Storm Drain Rehabilitation – CalTrans, (Large pipe cleaning and inspection)
• Trenchless Sewer Repairs – Coachella Valley Water District (Used Cosmic UV system to install 4’ spot repairs)
• Pipe Rehab with Sewer Laterals – LA County Sanitation Districts (dye testing, flow monitoring, cleaning, inspection, lateral bypass) • 75 Mile Condition Assessment – LA County Department Public Works (Clean and CCTV 75 miles of sewer pipe across multiple cities) • Sewer System Maintenance - City of Lynwood, CA
• CCTV Inspection, Citywide - City of Arcadia, CA
• Trunk Sewer Condition Assessment, LA County Sanitation District (Floating large trunk lines for cleaning/rehab)
• Sanitary Sewer Overflow Control Program Group 2 –
Sewer Rehabilitation – City of Los Angeles, CA
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E carollo.com
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E 707 Wilshire Boulevard, Suite 3920
Los Angeles, California 90017
P 213-489-1587

carollo.com
300.20 / Gardena SDMP Revised Scope and Fee.docx
April 23, 2024

Jun De Castro
City of Gardena
Department of Public Works Engineering Division
1717 West 162
nd Street
Gardena, CA 90247
Subject: City of Gardena Storm Drain System Master Plan, Revised Scope of Services and Fee Estimate Dear Jun:

In accordance with your request during our call dated April 16, 2024, Carollo Engineers, Inc. (Carollo) has revised the proposed Scope of Services and Fee Estimated as sociated with our Storm Drain System Master Plan proposal, dated March 2024. Based on our discussions, we have removed the following tasks from the Scope of Serv ices:
 Task 3.2 – Closed Circuit Television (CCTV) Inspection of County Pipelines  Task 3.3 – Condition Assessment Technical Memorandu m  Task 4.5 – Climate Change Analysis
 Task 4.7 – System Evaluation of County Infrastructure  Task 4.8 – Hydrologic/Hydraulic Model Development a nd Evaluation Technical Memorandum  Task 5.5 – Capital Improvement Plan (CIP) Technical Memorandum  Task 6 – Hydrologic/Hydraulic Model Calibration and Flow Monitoring (Optional Task), and its subtasks We also discussed the potential for the removal of the hydraulic model task from the Scope of Services . Carollo strongly recommends that the hydrologic/hydraulic m odeling be kept in the Scope of Services, for the following reasons:
 The software that Carollo intends to use on the pro ject is a combined hydrologic/hydraulic model that incorporates expected runoff rates within the hydraulic network. Developing a separate hydrologic mode l of the system without the hydraulic model would not provide a significant cost savings to the project.  The hydrologic/hydraulic modeling effort will help the City to identify and develop solutions for potential areas of flooding during large storm event conditio ns.  A well developed hydrologic/hydraulic model can enhance the City’s ability to provide quality storm drain service to its customers and limit the City’s liability.  A well developed hydraulic model will help “right size” any condition related issues in the City’s system identified during the CCTV inspection program to pr ioritize rehabilitation versus replacement for a given pipeline segment.

Below is revised scope of services and fee based on our discussion.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 2 ends

Proposed Scope of Services
Carollo has revised the scope of services below bas ed on the information provided above. In order to help the City compare this revised scope to our March 2024 p roposal, we have kept the task numbering consistent, and added text stating that “This task was removed” for tasks that have been removed from the scope.

Task 1: Project Management and Quality Control
Task 1.1 Project Administration and Schedule
To help monitor and maintain a timely project, mont hly schedule updates will be provided to the City electronically. Carollo will prepare monthly project status reports, which will be submitted along with the monthly invoices. Our project status reports will summarize the following:
 Description of work completed in reporting period.

Percentage complete to date by task and subtask.
 Schedule update.
 Budget update.
 Status of deliverables table.
 Data gathering table.
 Action item table.
 List of potential project issues.

Task 1.2 Project Meetings
The project will be launched at a kick-off meeting between the project team members, where the following will be accomplished:
 Confirm project objectives.
 Discuss involvement and needs from various City dep artments.  Review list of data needed for completion of the study.  Review previous work and studies.
 Document existing conditions and identify known sys tem deficiencies.  Define project roles and distribute project roster.
 Review schedule.

Carollo will work closely and maintain an open line of communication with City staff throughout the du ration of the master plan project. Our most direct way to com municate and assist you and your staff will be through bi- weekly meetings throughout the duration of the proj ect. Meetings are scheduled such that they can effectively be used to get input from City staff on the direction of the work, discuss deliverables, and make decisions to stay DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 3 ends

on schedule. In addition to the kick-off meeting an d bi-weekly meetings, this task includes three progress workshops.

Task 1 Deliverables

Monthly progress reports and invoices
 Workshop presentations, agendas, and minutes
 Summary email of biweekly meetings with ongoing lis t of action items Task 2: System Inventory and GIS Database Developme nt
Task 2.1 Data Collection and System Inventory
Carollo will perform a thorough reconnaissance and review effort to secure data, input, studies, policies, regulations, and other background materials that wi ll be needed to facilitate the successful completio n of the master plan. The City will furnish to Carollo all available studies, reports, and other data pertinent to our services, and we anticipate being entitled to use and rely upon all such information provided by the City or others authorized by the City in performing our services u nder this work plan.

The objective of this task is to review and assess the quality of available storm drain-related data and identify additional needs. Carollo will not reinvent the wheel but will inventory and review the appropriate available data from the City. Specific sources of information that will be targeted are:
 The City’s existing storm drainage system GIS datab ase, aerial maps, and CAD maps.  Gardena General Plan.
 Existing City drawings, atlas maps, and/or record d rawings (where needed).  Known deficiencies in the storm drain system/ flood ing locations.  Review of other relevant City and County maps and s tudies.

A plan for data collection will be developed in coo rdination with the City to facilitate the data collection phase, to minimize duplication of efforts between tasks, and to assure that appropriate data sources are investigated.

Task 2.2 GIS Database Development
Carollo will prepare a GIS-based database of the City’s collection system, including concrete channels, swales, underground pipelines, and manholes. County storm d rain infrastructure within the City limits will also be included in the GIS database. The GIS database will be prepared using the City’s existing sewer system mapping (CAD format), which will be converted to GIS and all data necessary to complete the database (e.g., pi pe inverts and diameter, manhole invert and rim, etc.). As-built drawings and/or reasonable assumptions will be u sed to fill DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 4 ends

in data gaps where needed. Condition information ga thered as part of Task 3 will also be included. The GIS database will have complete metadata and will be provided to the City in a shapefile format compatible with the City’s computerized maintenance management system ( CMMS) platform. The coordinate system to be used fo r GIS data is NAD 1983 State Plane California Zone 5 FIPS 0405 feet. Maps will be provided to the City a s PDF and shapefile formats.

Task 2 Deliverables

Data collection list (to be updated throughout proj ect).  Final storm drain system map with attribute data in shapefiles compatible with City’s CMMS platform.

Task 3: Condition Assessment
Task 3.1 CCTV Inspection of City Pipelines
The Carollo/National Plant Services Team will conduct Closed Circuit Television (CCTV) inspection of approximately 61,000 feet (11.6 miles) of City unde rground pipelines. The system will be inspected in accordance with the National Association of Sewer Service Comp any’s (NASSCO) Pipeline Assessment and Certification Program (PACP).

We will document all observed critical structural damage or blockages, and provide corrections to the storm drain system drawings, as appropriate.

Task 3.2 CCTV Inspection of County Pipelines
This task was removed.

Task 3.3 Condition Assessment Technical Memorandum
This task was removed.

Task 3 Deliverables

CCTV inspection files, including field reports, photos, and videos.  Spreadsheets with compiled condition data.
 Condition assessment data in shapefiles compatible with City’s CMMS platform.

Task 4: Hydrologic/Hydraulic Model Development and Evaluations Task 4.1 Watershed Development
Carollo will delineate urban and natural watersheds with their overall flow paths tributary to the City.

This task will also include the development of street flow directional maps. This will include a D-size overview map, with 11x17 detail maps covering the entire Cit y limits.

Task 4.2 Hydrologic/Hydraulic Model Development
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 5 ends

Using the GIS database developed as part of Task 2, Carollo will construct a hydrologic/hydraulic model of the storm drain system using the InfoWorks ICM software (developed by AutoDesk, formerly Innovyze). The mo del will include the primary watersheds, subbasins, and facilities within the City and off-site contributing areas.

The hydrologic model will be prepared pertinent to the selected design storm events (e.g., 10-year and 100-year events. The hydraulic model will be updated based o n the information gathered as part of Task 2 and Ta sk 5. To accurately model backwater effects, stage/discharge relationships will be developed for all outfalls and input into the model as boundary conditions. Separate stage di scharge curves will be developed. Carollo will create a new parcel-based land use layer using high resolution Q uickBird satellite imagery. The satellite imagery will be combined with parcel maps of the city, topo maps, a nd digital elevation models to derive a parcel-level land use layer. The spatial resolution of QuickBird imagery is 61 cm.

Task 4.3 Hydraulic Model Validation
Once the hydrologic and hydraulic parameters have b een input into the model, Carollo will run at least one historical rainfall event. The hydraulic model will be validated against historical knowledge of past rainfall event(s) to ensure the model shows flooding in areas known t o have flooding. An optional task for flow monitoring and model calibration is included in Task 6.

Task 4.4 Planning and Evaluation Criteria
This task consists of defining the methodologies fo r evaluating the storm drain system, sizing the proposed improvements, and developing the capital improvemen t projects. This task will review the City’s existing design standards for sizing storm water conveyance and sto rage facilities, and other relevant standards.

Task 4.5 Climate Change Analysis
This task was removed.

Task 4.7 System Evaluation of County Infrastructure
Carollo will analyze the County’s existing and future storm drainage facilities located within City li mits. The model will account for both existing and future land use/zoning/development, hydrologic conditions, runoff rates, and DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 6 ends

climate change impacts. In addition, a hydraulic an d quantitative analysis of the storm drain facilities will be undertaken. The hydraulic model will then be used t o identify deficiencies in the existing storm drainage system.

Special consideration will be given to those facilities in which known system deficiencies already exist and/or have been targeted by the City to be modified. Based on the hydraulic model evaluation, Carollo will recommend improvement projects to mitigate the existing syste m deficiencies.

Task 4.8 Hydrologic/Hydraulic Model Development and Evaluation Technical Memorandum This task was removed.

Task 4 Deliverables

Watershed hydrology map (hard copy 24”x36” size) an d GIS shapefiles.  Final hydrologic/hydraulic model files.
 Hydrologic/hydraulic model output files.
 Street flow directional maps (including D-size overview map and 11x17 detail maps covering City limits).

Task 5: Capital Improvement Projects
Task 5.1 Develop Recommended Improvements (City Infrastructure) Improvements to City storm drainage facilities necessary to meet existing and future capacity will also be identified and verified with the hydraulic model. Project alternatives, when feasible, will be identified and discussed with City staff. Benefits for the selected alternatives will be presented to City staff for review.

Task 5.2 Develop Recommended Improvements (County I nfrastructure) This task was removed.

Task 5.3 Rehabilitation and Replacement Program
Based on the results of the CCTV inspection program (part of Task 3), Carollo will provide recommendations for the City to develop a storm drainage inspection, co ndition assessment, and renewal/replacement program . The recommended program will consider the City’s curren t staffing levels and the funding availability to implement the program. Carollo will recommend an inspection a nd condition assessment schedule with specific areas of the storm drainage system targeted in a given year.

The recommended renewal/replacement plan will be pr ioritized based on the age of the facilities, with areas with known structural deficiencies being given higher priority. Recommendations from the condition assessme nt and rehabilitation/replacement program will be incorpor ated into the CIP and master plan document.

Task 5.4 Develop CIP
Carollo will prepare exhibits and cost summaries of the existing system and future system improvement projects.

This will include deficiencies, proposed improvemen ts that address these deficiencies, and phasing of the improvements.

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 7 ends

The CIP will be used as a tool for the orderly cons truction of the proposed facilities. Based on the input, coordination, iterations, and final project phasing , Carollo will develop CIP implementation plans to prioritize the proposed improvement projects, including phasing an d estimated timing of the improvements. It should b e noted that the CIPs will distinguish between the im provements needed to correct existing deficiencies and those needed to service future developments. Planning lev el costs associated with each proposed improvement will be based on the recommended unit costs approved by Cit y staff.

The recommended improvement projects will be priori tized and phased based on the City’s goals and objectives.

To facilitate the documentation and phasing of impr ovements, Carollo will prepare a large system map that presents all recommended projects by phase. This ma p will list project sizes and project IDs that correspond to the project ID in the CIP tables. The CIP tables will list the project ID, location, sizing information, cost estimates, and proposed phasing for each project. We will also prepare detailed project summaries of the recommended CIP projects.

Carollo will review the preliminary recommended imp rovements with the City in a workshop. The draft CIP will be developed based on feedback received during this wo rkshop.

Task 5.5 CIP Technical Memorandum
This task was removed.

Task 5 Deliverables

Draft Capital Improvement Program Tables and Exhibi ts
Task 6: Hydraulic Model Calibration and Flow Monito ring (Optional Task) This task was removed.

Task 7: Master Plan Report
This task consists of producing a stand-alone docum ent that will serve as the main planning document for the City’s storm drain facilities. A detailed report outline of the proposed master plan will be submitted to City staff for review and comment prior to the completion of t he draft report. The executive summary sections wil l bring forward the most significant findings of the projec t. Carollo will submit the draft report in electronic format. A workshop will be held to discuss the City’s comment s on the draft report. The final report will incorporate City staff comments from the reviewed draft report. Up to five hard copies of the final report will be deli vered to the City. Electronic copies of the report (pdf and word files) will also be provided to the City.

Task 7 Deliverables

Draft master plan report (electronic pdf submittal)
 Final master plan report (5 hard copies and electronic pdf/word files) DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E Jun De Castro
City of Gardena
Department of Public Works Engineering Division
April 23, 2024

Page 8 ends

Proposed Fee Estimate
Carollo has also revised the fee estimate for the project to exclude the tasks and subtasks noted abov e. The attached fee estimate shows the tasks that have bee n removed with a strikethrough. As shown on the attached table, Carollo’s revised fee estimate for the project is $463,500 . It should be noted that the costs for Task 7 have increased slightly above the costs provided in our March 2024 proposal because we have eliminated the technical memorandums from Tasks 3-5, which previou sly would have provided some efficiencies to Task 7.

Sincerely,
CAROLLO ENGINEERS, INC.

Ryan F. Orgill
Associate Vice President

RFO:ro

Enclosures: Fee Estimate

DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E FEE ESTIMATE (REVISED 4/23/2024)
Storm Drain Master Plan
City of Gardena
Professional
GIS Technician Labor
Other Direct
Expenses (1)
Estimated
Fee
$310 $290 $265 $235 $180 $168 $149
Task 1 – Project Management and Meetings 34 54 32 20 6 0 20 166 43,400 $ 7,600 $ 51,000 $ Task 1.1 – Project Administration and Schedule 2 24 8 0 4 0 12 50 12,200 $ 800 $ 13,0 00 $ Task 1.2 – Project Meetings 6 24 24 20 2 0 8 84 21,400 $ 6,300 $ 27,700 $ Task 1.3 – Quality Management 26 6 0 0 0 0 0 32 9,800 $ 500 $ 10,300 $ Task 2 – System Inventory and GIS Database Development 0 8 20 42 74 96 2 242 47,300 $ 3,600 $ 50,900 $ Task 2.1 – Data Collection and System Inventory 0 4 12 16 32 12 0 76 15,900 $ 1,100 $ 17 ,000 $ 0 4 8 26 42 84 2 166 31,400 $ 2,500 $ 33,900 $ Task 3 – Condition Assessment 0 2 6 20 0 2 0 30 7,200 $ 142,100 $ 14 9,300 $ 0 2 6 20 0 2 0 30 7,200 $ 142,100 $ 14 9,300 $ 0 -$ -$ -$
Task 3.3 – Condition Assessment Technical Memorandum 0 -$ -$ -$ Task 4 – Hydrologic/Hydraulic Model Development and Evaluations 1 10 34 94 236 92 0 467 92,300 $ 7,000 $ 99,300 $ Task 4.1 – Watershed Development 0 2 8 20 74 84 0 188 34,800 $ 2,800 $ 37,600 $ 0 2 8 18 60 8 0 96 19,100 $ 1,400 $ 20,500 $ Task 4.3 – Hydrologic/Hydraulic Model Validation 0 2 8 22 46 0 0 78 16,200 $ 1,200 $ 17,400 $ Task 4.4 – Planning and Evaluation Criteria 0 2 2 6 2 0 0 12 2,900 $ 200 $ 3,100 $ Task 4.5 – Climate Change Analysis 0 -$ -$ -$ 1 2 8 28 54 0 0 93 19,300 $ 1,400 $ 20,700 $ Task 4.7 – System Evaluation of County Infrastructure 0 -$ -$ -$ Task 4.8 – Hydraulic Model Development and Evaluation Technical Memorandum 0 -$ -$ -$ Task 5 – Capital Improvement Projects 1 8 38 54 144 16 0 261 54,000 $ 3,900 $ 57,900 $ Task 5.1 – Develop Recommended Improvements (City Infrastructure) 0 2 6 14 40 4 0 66 13,300 $ 1,000 $ 14,300 $ Task 5.2 – Develop Recommended Improvements (County Infrastructure) 0 2 8 16 32 2 0 60 12,600 $ 900 $ 13,500 $ Task 5.3 – Rehabilitation and Replacement Program 0 2 16 8 32 2 0 60 12,800 $ 900 $ 1 3,700 $ Task 5.4 – Develop CIP 1 2 8 16 40 8 0 75 15,300 $ 1,100 $ 16,400 $ Task 5.5 – CIP Technical Memorandum 0 -$ -$ -$ Task 6 – Hydraulic Model Calibration and Flow Monitoring (Optional Task) 0 0 0 0 0 0 0 0 -$ -$ -$ 0 -$ -$ -$
Task 6.2 – Hydraulic Model Calibration 0 -$ -$ -$ Task 6.3 – System Evaluation 0 -$ -$ -$ Task 7 – Master Plan Report 12 8 26 46 106 18 24 240 49,500 $ 5,600 $ 55,100 $ 8 4 16 28 70 12 16 154 31,500 $ 2,300 $ 33,800 $ 4 4 10 18 36 6 8 86 18,000 $ 3,300 $ 21,300 $ Total Hours 48 90 156 276 566 224 46 1,406 293,700 $ 169,800 $ 463,500 $ Notes:
(1) Task includes direct expenses from subconsultants with a 10-percent markup.

Task 7.1 – Draft Report
Task 7.2 – Final Report
Task 2.2 – GIS Database Development
Task 4.6 – System Evaluation of City Infrastructure
Task 3.1 – CCTV Inspection of City Pipelines
Task 3.2 – CCTV Inspection of County Pipelines
Senior Professional
Lead Project
Professional
Project Professional
Task 4.2 – Hydrologic/Hydraulic Model Development
Task 6.1 – Flow Monitoring Program
Task Description
Carollo Hours by Classification
Word
Processing
Total Hours
Assistant
Professional
DocuSign Envelope ID: 91EF550D-5335-4354-AF15-A1B646BC6D7E City of Gardena
Gardena City Council Meeting

AGENDA REPORT SUMMARY
Agenda Item No. 18.A
Section: DEPARTMENTAL

ITEMS - TRANSPORTATION
Meeting Date: July 23, 2024

TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE:

Approve Disadvantaged Business Enterprise Goal for Federal Fiscal Year 2025-2027
COUNCIL ACTION REQUIRED:

Staff Recommendation: Approval Goal and Methodology
RECOMMENDATION AND STAFF SUMMARY:

The City of Gardena’s GTrans recommends that Council approve its Federal Fiscal Year (FFY) 2025-27 Disadvantaged Business Enterprise (DBE) Goal and Goal Computation Methodology for submittal to the Federal Transit Administration (FTA).

GTrans is required to develop and submit an Overall Goal for Disadvantaged Business Enterprise participation on U.S. Department of Transportation - FTA assisted contracts every three years, as a condition of receiving federal financial assistance, pursuant to regulations set forth under Title 49 CFR Part 26: “Participation by Disadvantaged Business Enterprises in Department of Transportation Financial Assistance Programs” and directives issued by the FTA.

Attached is GTrans’ FFY 2025-27 DBE Goal and Goal Computation Methodology that has been prepared in accordance with federal regulations and GTrans' DBE Program updated in 2021. GTrans has set an overall goal of three percent (3%) for all FTA-assisted procurements (excluding buses and preventative maintenance or emergency operating funds such as CARES and CRRSAA).

A public comment period on the FFY 2025-2027 DBE Goal and Goal Computation Methodology included a virtual public meeting held on July 10, 2021. GTrans’ staff also presented to the City of Gardena Economic Business Advisory Council (GEBAC) on July 17, 2024. Therefore, it is recommended that Council approve GTrans FFY 2025-27 DBE Goal and Goal Computation Methodology, as attached for final submittal to the FTA.

FINANCIAL IMPACT/COST:

There is no impact to the General Fund.

ATTACHMENTS:

DBE Overall Goal & Methodology FFY 2025-2027 FINAL.pdf

APPROVED:
___________________________________
Clint Osorio, City Manager

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CITY OF GARDENA

DISADVANTAGED BUSINESS ENTERPRISE (DBE)

OVERALL GOAL AND METHODOLOGY
FOR
FEDERAL FISCAL YEARS (FFY) 2025 – 2027
(Covering the period of October 1, 2024 – September 30, 2027)

I. INTRODUCTION
The City of Gardena ’s Transportation Department (GTrans) is required to develop and submit a Disadvantaged Business Enterprise (DBE) Overall Goal for DBE participation as a condition of receiving federal assistance, pursuant to 49 CFR Part 26 “Participation by Disadvantaged Business Enterprises in U.S. Department of Transportation Programs” and the Federal Transportation Administration (FTA) Master Funding Agreement.

II. PROPOSED OVERALL GOAL FOR FFY 2025 – 2027
Effective March 3, 2010, the United States Department of Transportation (“DOT”) issued a final rule affecting the implementation and management of the Department’s Disadvantaged Business Enterprise (“DBE”) program. The final rule requires submission of a goal-setting methodology on a three-year cycle. Pursuant to this final rule, GTrans is still required to conduct an annual review to account for changes that may warrant an adjustment to the overall goal or make an adjustment based on changed circumstances (i.e. significant change in the legal standards governing the DBE program, new contracting opportunities presented by the availability of new or different grant opportunities, etc.) to ensure the goal and program as a whole are narrowly tailored throughout the goal period. Under the three-year schedule, GTrans’ DBE goal and methodology submission is due to FTA on August 1, 20 24 for proposed FTA funded contracting activities for Federal Fiscal Years (FFY) 2025-27. GTrans overall goal for the FFYs 20 25, 2026, and 2027 is 3%. The overall goal is expressed as a percentage of all FTA -assisted funds that GTrans will expend to applicable FTA-assisted contracts in the triennial goal period.

III. LOCAL MARKET AREA
GTrans has defined its local market area as Los Angeles, Orange, Riverside, and San Diego Counties.

This is the area in which the substantial majority of contractors and subcontractors with which GTrans does business are located; and the area in which GTrans spends the substantial majority of its contracting dollars.

IV. DOT-ASSISTED CONTRACTING PROGRAM FOR FFY 2025 – 2027 Table 1 represents all FTA -assisted projects (and projected FTA -share) that have possible contracting and subcontracting opportunities considered in the overall goal setting for fiscal years 2025, 2026, and 2027. The projects are anticipated to be awarded during the triennial period. GTrans

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does not pass any FTA funds to any sub -recipients. The following projects are anticipated to be completed during the FFY 2025-2027 period:

Bus Components – GTrans has programmed expenses for ongoing bus service equipment including but not limited to: engines, couplings, inverters, driver motors, etc.

Construction Management – GTrans has a locally -funded solar/battery storage construction project that will support electrification of its facility, and will need the services of a construction management firm to manage the project.

Labor Compliance - GTrans has a locally funded solar/battery storage construction project that will support electrification of its facility, and will need the services of a labor compliance firm to manage reporting and oversight of construction firm.

Emergency Generator – GTrans will purchase an emergency backup generator to assist with redundancy of its facility.

Bus Stop Amenities (Solar Bus Stop Lights) – GTrans will purchase bus stop solar lighting to enhance safety at bus stops throughout its service area.

HVAC Equipment/Installation – GTrans plans to purchase and install HVAC equipment for its main Operations and Administration building to regulate heat, airflow, ventilation, and air.

Asset Management/Maintenance Software – GTrans will use funds to purchase maintenance and asset management software to centrally manage GTrans’ assets. The Asset Management/Maintenance Software will help GTrans meet regulatory requirements, optimize parts management and reduce road calls.

Real-Time Information Signage – GTrans intends to purchase real -time information signage that will allow the data from its new CAD/AVL system to be pushed to on -street signage in addition to other web-based apps. The signage will be located at high ridership bus stops and major transf er points. GTrans intends to purchase ‘off the shelf’ signs that can be installed using its own staff on the existing bus poles.

Bus Lifts – GTrans plans to purchase and install portable and/or in-ground bus lifts for the maintenance of its medium and heavy-duty fleet of buses and support vehicles.

V. OVERALL GOAL-SETTING METHODOLOGY
The two -step goal -setting process required by the regulations was used determined the recommended overall goal for FFY 2022 – 2024. The two steps for setting an overall goal are to:

1. Establish a base figure for the relative availability of DBEs; and

2. Determine the base figure adjustment, if necessary

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The base figure is intended to be a measurement of the current ready, willing and able DBEs as a percentage of all businesses ready, willing, and able to perform the recipient’s anticipated FTA - assisted contracts.

VI. STEP ONE – BASE FIGURE CALCULATION
The annual goal methodology used is in accordance with the U.S. Department of Transportation (DOT) DBE Program Final Rule, 49 Code of Federal Regulation (CFR), Part 26. The two‐step goal - setting process has been used to determine the recommended overall goal for FFY 20 25 – 2027.

Calculations were performed to establish the GTrans Base Figure for the relative availability of Disadvantaged Business Enterprise (DBEs) in relation to all comparable firms available for GTrans contracting and subcontracting opportunities identified for the next three years. The DBEs are those who by definition in local databases are ready, willing and able to compete for contracts.

Base Figure Calculation Steps
Step 1 - Determine the weight of each type of work by NAICS Code.

Step 2 - Determine the relative availability of DBEs by NAICS Code(s) Step 3 – Multiply the (Work Type Weight) by (DBE Relative Availability) = Weighted Base Figure

The DBE database used to identify available DBE firms was the California Unified Certification Program (CUCP) Statewide DBE Directory, which i s available on the CUCP website. Los Angeles, Orange, Riverside, and San Diego Counties were the areas used to identify the number of DBEs. The 2021 United States Census Bureau ’s Business Pattern Database (CBP) for Los Angeles , Orange, Riverside, and San Diego Counties was used to identify all available firms in the local market area.

The majority of the contractors who do business in the City of Gardena are drawn from these nearby areas.

The availability data for each contracting opportunity by NAICS code (North American Industry Classification System) from the California Unified Certification Program (CUCP) database (DBEs available) and from the Census Bureau database (all listed available) are shown in Table 1.

To determine the relative availability of DBE’s GTrans divided the number of all ready, willing and able DBE firms established within its market areas by the number of all firms (DBE and Non -DBE) available in each work category. Then to determine appropriate weighting percent by NAICS, the estimated dollar value by NAICS was divided by the total estimated federal dollars GTrans expects to spend bet ween FFY2025 -2027. The weighting percent by NAICS was then multiplied by the Relative Availability of DBE Firms percentage to determine the Base Figure Percentage by NAICS.

See Table I below:

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TABLE 1 - CONTRACTING OPPORTUNITIES
Project NAICS
Code(s) NAICS Description(s) Available
DBEs
All
Available
Firms
Relative
Availability
of DBE
Firms
Project
Federal
Funding
Weighted
by Budget
Expense
% of Project
(Weight) X %
Relative
Availability of
DBE Firms
Bus Components
423120
336340
336330
Motor Vehicle Supplies and New Parts Merchant
Wholesalers, Motor Vehicle Brake System
Manufacturing, Motor Vehicle Steering and
Suspension Components
4 1,326 0.3% $300,000 10.4% 0.03%
Construction Management 236220
236210
237130
Power and Communication Line/Related Structures
Construction, Commercial and Institutional Building
Construction, Industrial Building Construction
99 $400,000
Labor Compliance 541199
541611
541618
561499
All Other Legal Services, Administrative Management
and General Management Consulting Services, Other
Management Consulting Services, All Other Business
Support Services
471 11,429 4.1% $100,000 3.5% 0.14%
Emergency Generator 236210
236220
Industrial Building Construction, Commercial and
Institutional Building Construction
97 2,324 4.2% $750,000 25.9% 1.08%
Bus Stop Amenities (Solar Bus
Stop Lights)
335122
335129
335132
335139
Industrial and Institutional Electric Lighting Fixture
Manufacturing, Other Lighting Equipment
Manufacturing
0 94 0.0% $320,000 11.1% 0.00%
HVAC Equipment/Installation 238220
333415
423730
Air-Conditioning/Warm Air Heating Equipment /
Commercial / Industrial Refrigeration Equipment
Manufacturing; Electrical Apparatus / Equipment,
Wiring Supplies, and Related Equipment Merchant
Wholesalers, Plumbing, Heating, and Air-
Conditioning Contractors
16 5,526 0.29% $500,000 17.3% 0.05%
Asset
Management/Maintenance
System
511210
541512
423430
Software Publishers; Computer System Design
Services; Computer and Computer Peripheral
Equipment and Software Merchant Wholesalers
102 2,014 5.1% $300,000 10.4% 0.53%
Real-Time Information Signs 339950
334290
Sign Manufacturing (electrical signs); Other
Communications Equipment Manufacturing
7 366 1.9% $224,000 7.7% 0.15%
Facility Equipment – Portable /
In Ground Bus Lifts
811310
238910
Commercial and Industrial Machinery and Equipment
(except Automotive and Electronic) Repair and
Maintenance; Site Preparation Contractors
85 1,820 4.7% $400,000 13.8% 0.65%
TOTAL 782 24,899 3.14% $2,894,000 100% 2.6%*
*Rounded to 3% per FTA guidelines and regulations.

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VII. STEP TWO – BASE FIGURE ADJUSTMENT
Adjusting the Base Figure
Upon establishing the Base Figure, GTrans reviewed and assessed other known evidence potentially impacting the relative availabi lity of DBEs within GTrans ’ market area, in accordance with provisions set forth under 49CFR Part 26.45 Step 2: DBE Goal Adjustment Guidelines. Evidence considered in determining whether or not to adjust the Base Figure included GTrans’ past DBE goal attainments, market area disparity studies, GTrans’ bidders list, and a review of the DBE goal methodology of other transit agencies in GTrans’ area with comparable Federal f unding and project types . The final determination resulted in no adjustment to the base figure. Determining factors are detailed as follows:

A. Past DBE Goal Attainments
GTrans had success using race neutral measures in attaining its DBE goal of 4 percent during the past three Federal Fiscal Years. GTrans had two main projects that allowed for possible DBE participation: Design Build of a CNG Station and Maintenance Bay Upgrades and Campus Electrification and Renewable Energy and Storage System.

GTrans’ Design Build of a CNG Station and Maintenance Bay Upgrades had initial DBE awards in its base construction contract (May 2021). As a result of unbundling the contract to allow for additional opportunities, the labor compliance/DBE monitoring contract was awarded to a DBE in FFY22. This allowed GTrans to meet its annual goal. The Campus Electrification and Renewable Energy Storage System projects were also unbundled, allowing for smaller, biddable parts with opportunities for DBE participation . GTrans awarded an Owner’s Representative Services contract which also i ncluded DBE participation, at 3.44 percent for FFY23.

Table 3 – Past DBE Goal Attainments
FFY22 FFY23 FFY24*

6.19% 3.44% 0%
Total Overall Average Three-Year DBE Participation: 3.2% *This reflects percentage awarded for FFY to date (3/31/2024) For the purposes of the FFY25-27 goal, GTrans considered an adjustment to the Base Figure based on its historical DBE goal attainments on similar contracts to those contracting opportunities identified and considered in the Overall DBE Goal Analysis for Federal Fiscal Years 2022 through 2024 . Three years of DBE participation data was reviewed which included some projects of a similar variety and scope to the scopes projected for the FFY25- 27 goal period. GTrans can reasonably assume that the rates of DBE pa rticipation f or Federal Fiscal Years 2025-2027 are an accurate reflection of DBE capacity to perform in the

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FY25-27 overall goal period. Therefore, GTrans did not adjust the Base Figure based on past DBE Goal Attainment.

B. GTrans Bidders List
GTrans maintains a bidders list for each project. GTrans’ bidders list demonstrates efforts in seeking qualified DBE firms to perform work on GTrans project s, which are similar to projects within the 2025-2027 goal period. There was no evidence from GTrans’ bidders list that would warrant an adjustment to GTrans’ base figure.

C. Evidence from Studies
GTrans determined that it was not feasible to conduct its own independen t availability/disparity study. GTrans identified Disparity Studies from two agencies, Los Angeles County Metropolitan Transportation Authority (2023) and the California Department of Transportation (2022), which provide d the most relevant information in relation to GTrans’ DBE Goal and whether to consider a Race-Concious DBE program.

Los Angeles County Metropolitan Transportation Authority (Metro) 2023 Disparity Study was reviewed and considered during the evaluation of adjustment of the Base Figure. LA Metro’s analyses of marketplace conditions in Los Angeles County indicate that Persons of Color (POC) and women face various barriers in industries relevant to Metro’s contracting and procurement. Existing research and primary research indicate d that disparities exist in acquiring human capital, accruing financial capital, owning busines ses, and operating successful businesses. In many cases, there is evidence those disparities exist even after accounting for various personal and business factors. There is also evidence that many disparities are due—at least, in part —to race- or gender-based discrimination. Barriers in the marketplace likely have important effects on the ability of POCs and women to start businesses in relevant industries —construction, professional services, goods and other services, and transit services—and to operate those businesses successfully. Any difficulties those individuals face in starting and operating businesses may reduce their availability for government work and the degree to which they are able to successfully compete for such projects.

Metro’s study , and its own breadth of historical projects reviewed had a substantial emphasis on very large and complex prime and subcontractor construction and engineering, architectural contracts which were not similar in scope to the types of projects that GTrans intends to conduct in the upcoming triennial period. Given that 49 CFR Part 26 states that there must be a rational relationship between the data used to make the adjustment and the actual numerical adjustment made, GTrans did not make an adjustment to its FFY 2025-2027 Base Figure for its overall DBE goal.

GTrans also reviewed and considered the State of California Department of Transportation’s (Caltrans) 2022 Disparity Study in its DBE Goal setting analysis. GTrans determined that the study was not applicable to GTrans due to geographic coverage as

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Caltrans examined opportunities throughout the entire State instead of a more concentrated market area like the City of Gardena uses. The Study’s Disparity Analysis results indicated that several racial/ethnic and gender groups show disparities on the contracts that Caltrans and subrecipient local agencies awarded during the study period, despite the fact that Caltrans applied DBE contract goals to many of those contracts.

GTrans reviewed the results and determined that the Caltrans Study is not applicable due to broad scope of the market area . Additionally, there was a significant difference in the types, breadth and complexity of contracting opportunities provided in the Caltrans study that made applicability to GTrans not comparable. Similarly, because there was no rational relationship between the data used to make the adjustment and the actual numerical adjustment made, GTrans did not make an adjustment to its FFY 2025-2027 Base Figure for its overall DBE goal.

Summary
In conformance with the Ninth Circuit Court decision relative to its FTA -assisted projects, GTrans determined that at this time, it will not adjust its based figure for FFY2025 -2027.

GTrans will continue to review applicable Disparity Studies and consider modifying its DBE Program if it is unable to obtain sufficient DBE participation.

D. DBE Goals of Other Local Agencies
GTrans surveyed the goals of other FTA recipients within our local market area that have similar available Federal funding, contracting programs and transit projects to assess whether an adjustment to our goal could be warranted. GTrans reviewed the following agencies’ DBE goals: AVTA, Norwalk Transit, Santa Monica Department of Transportation .

However, after a review, GTrans has determined that the DBE goals of these agencies are comparable and an adjustment based on this factor is not warranted.

E. Other Evidence
GTrans did not receive any evidence to the contrary, nor are we aware of any other factors which would have a material effect on the ability of DBEs within our market area to participate (i.e. meet bonding, insurance and financial requirements) in GTrans’ FTA- assisted contracting programs. Thus, no goal adjustment was made in consideration of this factor. However, GTrans continues to explore and consider all available evidence that would materially affect the opportunities for DBEs to participate in our FTA -assisted contracting programs by expanding our network of communication with DBEs in our region.

VIII. RACE- AND GENDER-NEUTRAL MEASURES
GTrans will use race- and gender-neutral measures to meet the established overall DBE goal for FFY 2025-2027, in conformance with Title 49 CFR Part 26; “Participation by Disadvantaged Business Enterprises in Department of Transportation Programs”.

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GTrans will implement Race-Neutral measures to meet its Overall DBE Goal objectives in accordance with 49 CFR Part 26.51, including but not limited to:
• Encouraging participation of DBEs in pre-bid conferences; • Outreaching to DBE trade associations to provide information on GTrans contracting opportunities;
• Soliciting support of DBE trade associations to distribute bid announcements including bid specifications;
• Encouraging DBEs to discuss their capabilities with prime contractors at pre -bid conferences;
• Using an eProcurement system, which will allow targeted distribution to registered DBEs • Using online advertising of solicitations such as DBEGoodFaith.com to increase outreach to small, minority, veteran and disabled business communities.

IX. PUBLIC PARTICIPATION AND FACILITATION
In accordance with Public Participation Regulatory Requirements of Title 49 CFR Part 26, minority, women, local business chambers, and community organizations within the City of Gardena’s market area were consulted and provided an opportunity to review the goal analysis and provide input.

GTrans prepared Outreach Consultation Letters advising the aforementioned business community of the proposed DBE goal analysis and its availability for review and comment. GTrans’ mailed Outreach Consultation Letters to 1 30 organizations and stakeholders with pertinent logistical information regarding the City’s consultation sessions.

Additionally, GTrans held consultation sessions with interested organizations and stakeholders concerning the availability of disadvantaged and non -disadvantaged businesses, the effects of discrimination on opportunities for DBEs, and efforts to establish a level playing field for the participation of DBEs. In addition, GTrans took the opportunity of starting a more regular dialogue with these stakeholders for not only purposes of DBE participation, but for the development of small business participation as well.

GTrans posted the Public Notices about proposed Overall Goal for the FFY 2025-2027 FTA-assisted contracts on its website. The Public Notice informed the public that the proposed goal and rationale were available for inspection at the GTrans’ Administrative Office during normal business hours for 30 days following the date of the Public Notice and that GTrans accepted comments on the goal analysis for 45 days from the date of the Public Notice. GTrans considered all comments and input and assessed impacts on the proposed Overall DBE Goal.

GTrans staff held a virtual public consultation meeting on Wednesday, July 1 0th, 2024 via Zoom.

GTrans staff presented to several attendees, and questions and discussion were held about the type of projects GTrans had planned for the next three fiscal years, both federal and non-federal. GTrans also presented to the City of Gardena’s Economic Business Advisory Council on Wednesday, July 17th, 2024, at its regular bimonthly meeting . Finally, the City of Gardena City Council will hear a presentation on the Proposed Goal at its regularly scheduled public meeting on Tuesday July 2 3, 2024.

Gardena City CouncilJuly 23, 2024

Gardena City Council
July 23, 2024