This Solicitation opportunity from California was posted on February 2, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Torrance Refinery Water Recycling Plant Microfiltration Feasibility Study

Closed

RFP-TH-0117State & Local

Submission Closed02/26/2026, 10:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 541330

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about 15 hours ago

DEADLINE

in 19 days

AI Contract Overview

West Basin Municipal Water District is seeking professional engineering services to conduct a feasibility study for replacing the existing microfiltration (MF) system at the Torrance Refinery Water Recycling Treatment Plant (TRWRP). The TRWRP, operational since 1998 and located on land leased from the Torrance Refinery, processes recycled Title 22 water to supply nitrified water for cooling towers and up to 3.2 million gallons per day of low-pressure boiler feed (LPBF) water for the refinery. The current MF system uses Memcor 90M10 CMF pressurized polypropylene membrane units installed in 1999, which have degraded significantly over time, resulting in operational deficiencies and inability to meet required production demands. The existing proprietary MF technology is incompatible with modern membrane replacements without significant modifications, and the system suffers from issues such as inadequate cleaning methods and material limitations. Furthermore, the overall infrastructure—including membranes, housings, piping, and supports—is in poor condition, and limited disposal capacity for backwash waste and RO concentrate within refinery sewer systems adds environmental and operational constraints. The feasibility study is intended to evaluate various replacement scenarios for the MF system while considering technical, operational, and environmental factors. Additionally, West Basin is engaged in discussions with the Metropolitan Water District of Southern California regarding the potential use of advanced treated water within its recycled water distribution system, and this potential future source must be taken into account when developing alternatives. The scope of the study encompasses assessing current system limitations, exploring innovative technology options, and ensuring the selected solution can reliably meet or exceed current water quality and delivery requirements while optimizing integration with future water supply possibilities. The solicitation (RFP-TH-0117) was posted in early 2026, with proposals due by late February 2026. The contract contact points are based in California, with West Basin emphasizing the need for a comprehensive evaluation of replacement strategies to support the refinery’s sustainable water treatment needs.

General Info

West Basin seeks engineering services to assess and replace degraded microfiltration system at TRWRP.

Agency

California → Engineering

NAICS

541330 - Engineering Services

Place of Performance

CA, USA

Set-Aside

NONE

Documents

General Services Agreement - West Basin Municipal Water District

10 pages · contract-document

High

Mobil CMF O&M Manual Overview

operation-and-maintenance-manual

High

Professional Services Agreement - West Basin Municipal Water District

10 pages · contract-document

High

Professional Services Agreement - West Basin Municipal Water District

11 pages · contract-document

High

Professional Services Agreement - West Basin Municipal Water District

8 pages · contract-document

High

Professional Services Agreement - West Basin Municipal Water District

9 pages · contract-document

High

RFP Torrance Refinery Water Recycling Plant Microfiltration Feasibility Study

15 pages · rfp

High

Scope of Work for MF Replacement Feasibility Study at TRWRP

5 pages · sow

High

Supply Agreement No. W___ between West Basin Municipal Water District and Supplier

10 pages · contract-document

High

Transportation Services Agreement - West Basin Municipal Water District

contract-document

High

West Basin Mobil Boiler Feedwater Plant Microfiltration System Unit Process Guidelines

unit-process-guidelines

High

Vendor Information Request Form - West Basin Municipal Water District

1 page · vendor-information-request

Low

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedFeb 2

Solicitation

Response DeadlineFeb 26

Deadline has passed

Submission Closed

02/26/2026, 10:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Engineering

Contacts2 people available

OfficeCarson, CA, 90746, USA

Organization / AgencyCalifornia → Engineering

Office AddressCarson, CA, 90746, USA

Contacts

Orlando RodriguezSenior Engineer

contact@example.gov

+1 (555) 000-0000

Tikneshea HicksContracts Administrator II

contact@example.gov

+1 (555) 000-0000

Interested Companies (7)

AtkinsRealis USATampa, FL

Kimley-HornOrange, CA

Hazen and SawyerNew York, NY

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Full Description

West Basin Municipal Water District (West Basin) is soliciting proposals (RFP) to provide professional engineering services for the preparation of a Feasibility Study for the Microfiltration System Replacement at the Torrance Refinery Water Recycling Treatment Plant (TRWRP). The TRWRP began operating in 1998 and is located in the City of Torrance on land leased from the Torrance Refinery, which was purchased from the ExxonMobil Oil Corporation by the Torrance Refinery Company LLC (TORC) in July 2016 and is now owned by PBF Energy. The TRWRP pulls ECLWRF Title 22 water off the recycled water distribution system to produce nitrified water for cooling towers and up to 3.2 mgd of low-pressure boiler feed (LPBF) water for Torrance Refinery. For the LPBF, West Basin treats Title 22 water through Microfiltration (MF) and Reverse Osmosis (RO) to produce LPBF water for a minimum reliable delivery of 2,200 gpm of RO water. The MF/RO treatment process starts with 500-micron strainers. The MF membranes at TRWRP are Memcor 90M10 CMF microfiltration units installed in 1999, a technology that is now owned and supported by DuPont Water Solutions. The Memcor 90M10 CMF units are pressurized microfiltration systems built around polypropylene (PP) modules and consist of six-rack units with an original design capacity each of 604 gpm to produce a total of 3.73 MGD of MF product water. MF effluent is pumped to the RO process followed by decarbonation for distribution as LPBF water. Each RO train originally had a design flow range of 440 – 660 gpm (approximately 8 – 11 gallons per square foot per day. The RO trains are configured in a 20:10:5 array with 6M vessels and operate at 85% permeate recovery. Currently, only three of the four RO trains are operated simultaneously to meet refinery demand, allowing for redundancy. Originally installed in 1999, the MF equipment has experienced mechanical and equipment material degradation and failures resulting in an inability to meet refinery product water demand. Additionally, the PP membrane with the gas-backwash configuration of the 90M10C CMF system has demonstrated an inability to achieve original flux and production requirements, necessitating the use of potable water to supplement the RO feed supply. In general, the various components of the MF system (membranes, housing, piping, and supports) are in poor condition due to age and may not be salvageable or could require a significant rehabilitation to restore reliable production of LPBF water. Additionally, the existing MF system is an obsolete, proprietary technology and cannot readily accept PVDF membrane conversion without significant modifications to the system (e.g. PP membrane is not tolerant to exposure to oxidants, so the cleaning system does not currently allow for conventional clean-in place methods such as free-chlorine solutions. The system may not accommodate modern replacement membranes from many of the qualified manufacturers available in the market today. Backwash waste is discharged into the feed of the onsite Biofor treatment system, and waste from this system is discharged to the Torrance Refinery in-plant sewer system. RO concentrate (brine) is discharged to the Torrance Refinery in-plant sewer system, which has limited hydraulic capacity and discharge quality limits. With this feasibility study, West Basin intends to evaluate various scenarios to be considered as potential solutions for the replacement of the existing MF System. Furthermore, West Basin is in active discussions with Metropolitan Water District of Southern California (MWDSC) about potentially conveying advanced treated water to West Basin's recycled water distribution system for its customers. The consultant shall make considerations of this possible outcome when developing alternatives for the MF system.