Project Information

Bid Title

FISH SCREEN MONITORING SURVEY

Issuing Agency

City of Antioch

Location

California

Published Date

Mar 6, 2026

Closing Date

Mar 31, 2026

Government Level

State & Local

Status

Closed

Ref. #

P.W. 565-7

Original Source

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Project Description

Bid Number:	P.W. 565-7
Bid Title:	FISH SCREEN MONITORING SURVEY
Category:	Public Works RFQs
Status:	Open

Description: The City of Antioch is seeking qualified firms to implement a Fish Screen Monitoring Study for its new Water Intake System located in the San Joaquin-Sacramento Delta. The selected contractor will conduct specialized entrainment sampling from March through June, utilizing Hidrostal pumps and 500μm mesh nets to monitor protected fish species like Delta and Longfin Smelt. This monitoring effort is a critical requirement of the California Department of Fish and Wildlife (CDFW) Incidental Take Permit project. The work requires precise data collection, laboratory identification, and statistical reporting to ensure environmental compliance. The deadline for submission of qualifications for this work is March 31st, 2026, at 2:00 P.M. Publication Date/Time: 3/5/2026 12:00 AM Closing Date/Time: 3/31/2026 2:00 PM Addendum Date/Time: March 25, 2026 at 4:00 P.M. Related Documents: RFQ P.W. 565-7 for Fish Screen Monitoring Survey

Attachment Preview

REQUEST FOR QUALIFICATIONS

FOR

FISH SCREEN MONITORING STUDY

PROJECT NO. P.W. 565-7

Qualification Due Date: March 31st, 2026, at 2:00 P.M.

Public Works Department

Water Treatment Plant

1201 W. 4th St

Antioch, CA 94509

(925) 779-6950

INTRODUCTION

The City of Antioch is seeking qualified firms to implement a Fish Screen Monitoring Study for its

new Water Intake System located in the San Joaquin-Sacramento Delta. The selected contractor

will conduct specialized entrainment sampling from March through June, utilizing Hidrostal pumps

and 500µm mesh nets to monitor protected fish species like Delta and Longfin Smelt.

This monitoring effort is a critical requirement of the California Department of Fish and Wildlife

(CDFW) Incidental Take Permit project. The work requires precise data collection, laboratory

identification, and statistical reporting to ensure environmental compliance.

The deadline for submission of qualifications for this work is March 31st, 2026, at 2:00 P.M.

SCOPE OF WORK

The City of Antioch is implementing a Fish Screen Monitoring Study for its Water Intake System to

evaluate the effectiveness of new intake screens and determine fish entrainment rates within the

San Joaquin-Sacramento Delta. From March 1, 2026, to June 30, 2026, researchers will use a fish-

friendly Hidrostal pump to sample water from the facility's wet well, filtering it through a 500µm mesh

net to capture eggs, larvae, and juvenile fish. The study specifically targets "Covered Species"

protected under state and federal law including Delta Smelt, Longfin Smelt, and various Chinook

Salmon runs by analyzing how density and presence correlate with environmental variables like

tidal flow and water quality.

1. Project Management and Coordination

• Agency Consultation: Coordinate with the California Department of Fish and Wildlife

(CDFW).

• Operational Coordination: Coordinate sampling schedules with pump station operations

to ensure vertical turbine pumps are inactive during sampling for safety and effectiveness.

• Data Integration: Coordinate with the Interagency Ecological Program (IEP) and provide

monitoring data upon request.

2. Entrainment Monitoring Field Operations

• Sampling Period:

o Conduct weekly sampling events from March 1st through June 30th unless an

alternative schedule is agreed to with CDFW.

• Sampling Design:

o Perform paired sampling events 18 hours apart to capture opposite tidal cycles (p.

10) unless an alternative schedule is agreed to with CDFW.

o Utilize a portable Hidrostal fish-friendly pump to extract water from the wet well.

• Volume Requirements:

o Target a 1% sample of the wet well volume (~256 gallons) per event.

o Adjust sample volume (up to 5% or 10%) if initial detection levels are insufficient.

• Filtering:

o Pass all pumped water through a 500µm mesh plankton net to capture eggs, larvae,

and juveniles.

Page 2 of 6

• Environmental Data Collection:

o Record tidal flow, time of day (day/night/crepuscular), and water quality parameters

(temperature, turbidity, and pH) from the ANH monitoring station.

3. Laboratory Analysis

• Sample Processing:

o Rinse net contents into containers and preserve samples for lab transport.

• Identification:

o Sort samples under magnification and identify all fish to the lowest possible taxon.

• Quantification:

o Count and measure all captured specimens, focusing on "Covered Species" such as

Delta Smelt, Longfin Smelt, and various Chinook Salmon runs.

4. Data Analysis and Reporting

• Statistical Analysis:

o Calculate weekly entrainment estimates based on mean density.

o Use Analysis of Covariance (ANCOVA) to relate fish density to environmental

variables.

• Final Report: Prepare and submit a detailed technical report to CDFW including:

o Data collection and analysis methodologies

o Fish composition and density results

o Discussion of study limitations and recommendations for future monitoring

5. Adaptive Management

• Review sampling effectiveness and modify design (frequency or timing) as information is

gained or if required by CDFW.

Page 3 of 6

FORMAT OF THE STATEMENT OF QUALIFICATIONS

The submittal is to be prepared in a bound 8 ½” x 11” format limited to approximately 25 pages,

including brochures. Covers, dividers are not included in the page count. In addition, any

information that needs to be returned should not be submitted. The Consultant is requested to

include the following information in the SOQ. It is expected that the SOQs will follow the order listed

below:

• Cover Letter introducing the firm and describing why you want to be considered. Provide

location of the office that will be performing the work

• Organization Chart for the Project Team

• Brief Information for Key Staff including education, directly related experience, description

of their assignment on this project, and résumé

• A list of proposed sub-consultants, and a description of their proposed services

• Summary of the Company’s Relative Experience and Performance

• Summary of Approach for Completing the Work

• Detailed Scope of Work of Activities Required

• List of contracts/agreements terminated for convenience or default within the past three

years, if any

• List any litigation that now affects or may affect in the future consultant firm’s ability to

perform

• Confirm your firm’s ability to meet contract & insurance requirements

• Anticipated Labor Effort by Task and Classification for Each Activity

• Milestone schedule for Project Completion

ADDENDA

All questions regarding this RFQ must be submitted via email to Marcus Woodland at

mwoodland@antiochca.gov by March 25, 2026, at 4:00 P.M. Questions received after this deadline

will not be considered. Responses to all submitted questions will be issued via written addendum

and published to the City website. Any addenda issued for this RFQ must be acknowledged and

included within the proposer’s SOQ. The addenda will not count toward the page limit.

CONSULTANT SELECTION PROCESS

Enclosed is a copy of the City of Antioch’s Consultant Services Agreement. By submitting a

proposal for this work, a firm agrees to comply with all terms and conditions outlined in the

agreement.

It is anticipated that from the proposals submitted, City staff will be able to select the firm best suited

to meet the City’s needs. However, if that is not possible, the City will ask a “short list” of firms to

meet with staff to discuss the project and the firm’s qualifications. The City will negotiate a

professional services contract for the work after staff has determined the best qualified firm.

No compensation will be due any firm for preparation of a written proposal or for meeting with staff

after a “short list” has been determined.

The selected firm will receive a notice to proceed after the City Council has approved their contract.

Page 4 of 6

CRITERIA FOR SELECTION

All proposals will be evaluated based on the criteria below.

• Qualifications and experience with similar projects - 30 points

• Understanding of the scope and potential challenges - 30 points

• Organization of proposal – 5 points

• Familiarity with applicable standards and procedures - 20 points

• Schedule of work, including labor rates and expected labor hours - 15 points

SUBMISSION INSTRUCTIONS

Three (3) bound, one (1) unbound and one (one) electronic copy of the proposal March 31, 2026,

at 2:00 P.M. to:

Marcus Woodland

Water Treatment Plant Superintendent

City of Antioch

Public Works Department

Water Treatment Plant Division

1201 W. 4th St

Antioch, CA 94509

Interviews will be conducted if there is not an outstanding response, and two or three firms are very

close in evaluation points. Any questions regarding the above should be directed to Marcus

Woodland via email at mwoodland@antiochca.gov.

ATTACHMENTS

A. Evaluation Criteria

B. Fish Screen Monitoring Plan

C. City of Antioch Consultant Services Agreement (Sample)

Page 5 of 6

Commodity Codes

• NAICS 541620Environmental Consulting Services
• NAICS 541690Other Scientific and Technical Consulting Services

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