JMMCRWRP Sodium Hypochlorite Tank Replacement Project

Agency:	West Basin Municipal Water District
State:	California
Type of Government:	State & Local
NAICS Category:	236220 - Commercial and Institutional Building Construction 237110 - Water and Sewer Line and Related Structures Construction
Posted Date:	Jul 5, 2026
Due Date:	Jul 30, 2026
Solicitation No:	RFB-TH-0134
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Description

Project ID: RFB-TH-0134

Title: JMMCRWRP Sodium Hypochlorite Tank Replacement Project

Addenda: 0

Release Date: 7/2/2026

Due Date: 7/30/2026

Invitation For Bid

Engineering

05586 , 10049 , 83028 , 83032 , 83033 ... show all

Project ID: RFB-TH-0134

Release Date: Thursday, July 2, 2026

· Due Date: Thursday, July 30, 2026 2:00pm

Posted Thursday, July 2, 2026 7:53pm

All dates & times in Pacific Time

Draft Response Events RSVP No Bid24 days, 19 hours, 29 minutes

Post Information

Posted At:Thu, Jul 2, 2026 7:53 PM
Sealed Bid Process:Yes (Bids Sealed / Pricing Sealed)
Private Bid:No

Overview

Summary

Request for Bids

West Basin Municipal Water District (West Basin/District) is soliciting bids for the JMMCRWRP Sodium Hypochlorite Tank Replacement Project. The project involves removing and replacing the existing sodium hypochlorite storage tank, foundation, and appurtenances, and installing a temporary bypass system to maintain plant operations during construction. The tank replacement will enhance operational flexibility and extend the overall service life of the system. All work must be completed within 410 calendar days.

Background

The Juanita Millender-McDonald Carson Regional Water Recycling Plant (JMMCRWRP), located in the City of Carson, provides advanced treatment of Title 22 recycled water through microfiltration (MF), reverse osmosis (RO), and nitrification processes. The treated product water is supplied to the Marathon Refinery for boiler-feed and cooling tower applications.

Sodium Hypochlorite (SHC) is a critical chemical used at JMMCRWRP. It is essential for boiler feedwater production to minimize MF membrane fouling, support MF and RO membrane cleaning, and provide breakpoint chlorination for the nitrification process. In 2022, the original 8,000-gallon FRP SHC storage tank suffered a structural failure, resulting in a leak. To maintain uninterrupted operation, a temporary 6,900‑gallon HDPE tank supplied by Rain for Rent was installed and has remained in service since. After evaluating long-term operational needs, constructability, and durability, West Basin determined that replacing the failed tank with a permanent 9,100‑gallon FRP tank would provide a more reliable and sustainable solution.

Timeline

Solicit Bids:

July 2, 2026

Pre-Bid Conference* (Mandatory):

July 16, 2026, 2:00pm

Teams Link: https://teams.microsoft.com/meet/233422673742869?p=D0q3thqBln9FOm5J3X
Meeting ID: 233 422 673 742 869
Passcode: gx6YK6Du

Last Day for Comments or Questions:

July 23, 2026, 5:00pm

Bids Due:

July 30, 2026, 2:00pm

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JMMCRWRP Sodium Hypochlorite Tank Replacement Project

Description

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