REQUEST FOR QUOTES FROM CERTIFIED DBE/DVBE/SBE SUBCONTRACTORS AND SUPPLIERS FOR:

WALNUT CREEK WATER TREATMENT PLANT FILTERS IMPROVEMENTS
Specification No. 2189

Owner: EBMUD
Estimated Contract Cost: $20M – $25M

BID OPENING: November 10, 2026 at 2:00PM

We are soliciting quotations for the following: Coating & Lining; Crane Service; Electrical & Instrumentation; Misc. Metals Fabrication Supply; Pipe, Specials & Valve Supply; Sawcutting & Coring Services; Scaffold Service; Trucking Services; Welding Services.

Project Description:

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.
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.

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.

Blower Building
a. Replace and provide new switchboard.
Operations Building
a. Furnish and install 800A Manual Transfer Switch (MTS) with generator connection box. Reroute existing, replace and provide new cable.

Project information including plans and specifications can be found online at:
https://construction-bids.ebmud.com/SpecMain.aspx?SpecGN=8823&BidMode=Current
or by emailing us at estimating@rangerpipelines.com.

Subcontractors on this project will be required to comply with all applicable state, county, and other applicable federal regulations. These requirements are explained in the project specifications. We encourage subcontractors submitting quotes to utilize other DBE, DVBE and SBE-certified firms through second-tier subcontracting, owner-operated equipment, or purchase of supplies.

Ranger Pipelines, Inc. will supply information regarding plans and specifications, bonding, lines of credit, insurance requirements or job overview. Please feel free to contact Ranger Pipelines, Inc. at (415) 822-3700.

RANGER PIPELINES, INC.
CA License # 417996
1790 YOSEMITE AVE, SAN FRANCISCO, CA 94124
PHONE: (415) 822-3700 FAX: (415) 822-3703
estimating@rangerpipelines.com
This is a part of our Good Faith Effort outreach and your response is greatly appreciated.
AN EQUAL OPPORTUNITY EMPLOYER