Bid Details for EBMUD: WALNUT CREEK WATER TREATMENT PLANT FILTERS IMPROVEMENTS

Project
EBMUD: WALNUT CREEK WATER TREATMENT PLANT FILTERS IMPROVEMENTS
Owner
EAST BAY MUNICIPAL UTILITY DISTRICT (EBMUD)
Bid Time
12/02/2026 2:00 pm
Description

EBMUD WALNUT CREEK WATER TREATMENT PLANT FILTERS IMPROVEMENTS, SPECIFICATION 2189

 

Work includes:
1. Filters 1 through 4:
a. Demolish existing Wheeler Bottom underdrains.
b. Replace and provide new underdrains, troughs, media, stop logs, applied channel
overflow pipes, valves, and gaskets.
c. Demolish existing surface wash piping; furnish, install, and demolish temporary
surface wash piping. Furnish and install new air scour piping.
d. Furnish and install new lighting panel.
2. Filters 5 through 8:
a. Replace and provide new troughs and valves.
b. Investigate and repair the water leak at Filter 5 Right (5R) filter box. Replace all
media with new media in Filter 5R.
c. For Filters 5 through 8 except for Filter 5R, replenish lost media with new media
to the levels indicated in the design drawings.
d. Demolish Filter 5 & 7 Foundation Fieldbus, replace with District-furnished
instrumentation, and replace and rewire valve boards.
3. Pipe Gallery
a. Demolish Washwater Supply (WWS) tee, flow control valve (FCV), pipe loop
and supports. Furnish and install 24”/20” WWS bypass, supports and valves.
Provide new cross, valves, associated piping, and instrumentation.
b. Demolish polyblend tank, including concrete curbs.
4. Blower Building
a. Replace and provide new switchboard.
5. Operations Building
a. Furnish and install 800A Manual Transfer Switch (MTS) with generator
connection box. Reroute existing, replace and provide new cable.
Estimated cost of this work is between $20M and $25M.
This project will require multiple trades and types of work; for example (note: this list is not all inclusive):
demolition, saw-cutting, concrete coring, hazardous materials handling, grading,
excavation, shoring, fill, concrete, rebar, waterproofing, painting, industrial coatings, structural
steel, bolting, welding, mechanical, electrical, pipeline, plumbing, temporary crane equipment,
handrails, guardrails, gratings and railings, fencing, trucking, paving, and other required work
and trades.

All work covered by the contract shall be completed within one thousand two hundred fifty
(1,250) calendar days after the issuance of the Notice to Proceed.

The contractor/subcontractor performing the electrical work for this contract is required to be a
District pre-qualified electrical subcontractor. See Instructions to Bidders Article 6 for more
information.

 

EBMUD Contract Equity Program is in effect on this project. District contracting objectives are: Construction 25% White Men; 9% White Women, 25% Ethnic Minorities (Men and Women).

Location
Walnut Creek Water Treatment Plant at 2201 Larkey Lane, Walnut Creek, CA.
Amount
$20 – 25M
Estimator
Larry Etcheverry
Larry Etcheverry

510 234-0926
larrye@overaa.com

Danny Holdren
Danny Holdren

510 234-0926
dannyh@overaa.com

Dan Monahan
Dan Monahan


Anna Stein
Anna Stein

510 234-0926
annas@overaa.com

Adrian Reyes
Adrian Reyes

510-234-0926

Matt Starke
Matt Starke


Bid Walk

The District will conduct a pre-bid jobsite inspection tour to familiarize prospective bidders with
the project site and conditions. The inspection will be conducted on Wednesday, October 21,
2026 at 9 a.m. Bidders/bid walk attendees (Attendees) shall comply with any Contra Costa
County health orders. Attendees shall be expected to complete and sign a waiver of liability prior
to attending the pre-bid jobsite inspection tour. Blank copies of the waiver form will be provided
on site for completion. Attendees shall assemble at Walnut Creek Water Treatment Plant at 2201
Larkey Lane, Walnut Creek, CA. Attendees shall check in with the security guard at the entrance
and report directly to the Operations Building entrance, between Filter 1 and Filter 5 upon arrival
and not loiter in the surrounding neighborhood prior to the start time. This is the only time that
the Walnut Creek WTP will be open for inspection. All Attendees are required to provide and
wear personal protective equipment (hard hat, gloves, and safety vest, glasses, and shoes). The
inspection will last approximately 2 hours. No photography by the Attendees will be allowed.
The District will take photographs, as requested by the Attendees, restricted to the work zone.
The District will release photographs to Attendees after the bid walk, pending review by the
District. All Attendees are required to have a photo ID and sign a confidentiality agreement not
to share, sell, or publish photos.
The Prime Contractor and its subcontractors are strongly encouraged to attend the jobsite
inspection where a “sign-in” sheet will be provided. Requirements of the District’s Contract
Equity Program including the Local Hire component will be discussed and explained at the
jobsite inspection.
For pre-bid jobsite inspection questions only, call Tom Bullock at (510) 287-1060. For other
questions, refer to Document 00 30 05. To download a set of contract documents, visit the
project website at https://constructionbids.
ebmud.com/CurrentorFutureBid.aspx?BidMode=Current.

Requirements
EBMUD Contract Equity Program is in effect on this project. District contracting objectives are: Construction 25% White Men; 9% White Women, 25% Ethnic Minorities (Men and Women).
Availability
Project information, including plans, specifications, plan holders list, bid results, etc., can be found at https://construction-bids.ebmud.com/CurrentorFutureBid.aspx?BidMode=Current. The District will make its best efforts to include information provided by bidders obtaining plans and specifications, such as bidders’ names, addresses, phone and fax numbers, and email and website addresses, on the website plan holders list.