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CALIFORNIA WATER SERVICE GROUP

Parent2 subsidiariesUEI: SVNKYXLA8D28

CALIFORNIA WATER SERVICE GROUP is a federal contractor, registered under UEI SVNKYXLA8D28. It has been awarded $272 in federal contracts. Primary work spans Water Supply and Irrigation Systems and Sewage Treatment Facilities. Top awarding agencies include Department Of Veterans Affairs.

Contact Information

Registration and classification details

Registration

UEI Code

SVNKYXLA8D28

Subsidiaries

2 companies roll up into CALIFORNIA WATER SERVICE GROUP, sized by each one's own awards

Award distribution

$35.1M

California Water Service CO$34.9M Kalaeloa Water Company, LLC$150.0K

1California Water Service COUEI U2JFL97EMTL2$34.9M99.6%2Kalaeloa Water Company, LLCUEI E11LD5T1KFM3$150.0K0.4%

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Sioux City Wastewater Treatment Plant Facility Plan - Phase 1 Improvements Project

Solicitation # sioux-city-wastewater-treatment-plant-facility-plan-phase-1-improvements-project

The Sioux City Wastewater Treatment Plant Facility Plan Phase 1 Improvements Project, managed by Rice Lake Construction Group, involves extensive infrastructure upgrades and modernization of wastewater treatment facilities in Iowa. Key mechanical and process improvements include the replacement of preliminary treatment equipment, primary clarifiers, and the RAS pump station, alongside the rehabilitation of aeration tanks and the conversion of an anaerobic digester for sludge storage. The project also encompasses the construction of a new secondary control building, the installation of plant-wide odor control systems, and critical electrical upgrades including new main switchgear and standby emergency power generators. The scope of work requires comprehensive demolition of unused structures and buildings, as well as significant site and civil improvements to meet NFPA 820 and other safety standards. Requested materials and services span a wide range of disciplines, including hazardous material abatement, concrete and masonry work, HVAC, plumbing, and the installation of specialized process gas and liquid handling equipment. This large-scale solicitation seeks contractors capable of delivering integrated electrical, instrumentation, and water treatment solutions to enhance the overall efficiency and safety of the plant.

Rice Lake Construction Group

POSTED

about 16 hours ago

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Water and Wastewater Facility OperationsThis subcontract for Water and Wastewater Facility Operations involves the day-to-day operation and maintenance of water distribution and sewage collection systems for prime contractors on City of Jasper utility projects. The scope of work includes operating water distribution networks, sewage collection systems, pumps, and treatment facility equipment to ensure continuous and compliant system performance. Qualified providers must hold state-specific water and wastewater plant operator licenses valid for the Georgia and Southeast region. The solicitation was posted on October 19, 2026, with a response deadline of November 24, 2026, falling under NAICS code 221310.

POSTED

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in about 1 month

RFP # 2026-004 - Operations, Maintenance, & Management of Water Distribution & Sewage Colletions

Solicitation # 2026-004

The City of Jasper, Georgia, is soliciting proposals under RFP 2026-004 to establish a public-private partnership for the operation, maintenance, and management of its water distribution and sewage collection systems. The primary objectives of this agreement are to ensure regulatory compliance, improve asset maintenance, and implement cost-effective operational solutions. The anticipated contract term is five years with a five-year option period, with services expected to commence on January 1, 2027. Qualified respondents must possess at least ten years of experience in full-service public-private partnership agreements for water and sewer utilities and currently operate at least five such systems within the United States. Preference will be given to firms with experience under the Georgia Environmental Protection Division's jurisdiction. Additionally, respondents must demonstrate the ability to provide liability and property damage insurance with combined single limits of at least 5,000,000 dollars. Key deliverables include a transition plan, a draft management agreement, and an annually updated risk management plan for facilities. Proposals must be submitted by 2:00 PM EST on November 24, 2026, to City Clerk Lorrie Waters. Submissions must include one original signed proposal and nine duplicates, along with an electronic copy on a flash drive or CD. The package must be clearly marked with the specific statement of proposals required by the city. The City will evaluate respondents based on a points system and reserves the right to conduct on-site inspections of current facilities. Notably, respondents are explicitly instructed not to submit any fees with their initial proposal.

POSTED

DEADLINE

in about 1 month

Chlorination Systems and Maintenance - FWA

Solicitation # W912D027QA001

Solicitation W912D027QA001 is a total small business set-aside for a firm-fixed-price service contract to provide chlorination system maintenance and potable water tank inspections at Fort Wainwright, Alaska. The contractor is responsible for performing monthly maintenance on chlorination monitoring and injection systems and conducting quarterly inspections of water storage tanks in Buildings 1169, 1185, 2400, and 5108. Key requirements include adhering to TB MD 576 4-2 for tank cleaning, submitting electronic summary reports by the fifth business day of every third month, and responding to emergency call-outs to restore system functionality within two business days. The contract structure consists of a base period from November 16, 2026, to November 15, 2027, with four subsequent one-year options and a possible six-month extension, for a total maximum duration of 60 months. Award will be made to the responsible offeror whose proposal is most advantageous to the government based on technical merit, past performance, and price. Technical evaluations focus on certifications and equipment lists, while past performance is verified through systems like CPARS and PPIRS. All invoices must be processed through Wide Area Workflow. Contractors must comply with strict safety protocols, including coordination with the Installation Safety Office for confined space entry and lockout/tag-out procedures, and must adhere to the Service Contract Act wage determinations for the Fairbanks North Star area. Proposals must be submitted via email to the designated contracting officers by October 22, 2026.

0413 Aq Hq Rco-Ak Wainwrig

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146799 WOD TREATMENT OPS LAAFP 2027 SHUTDOWN KELLUNDITE DIFFUSERS

Solicitation # 232557

The City of Los Angeles Department of Water and Power has issued solicitation number 232557 for the WOD Treatment Ops LAAFP 2027 Shutdown Kellundite Diffusers project. This local government contract focuses on operational requirements related to the 2027 shutdown and the management of Kellundite diffusers within the Los Angeles area. The work is designated to be performed in Los Angeles, California. Interested vendors must submit their responses by the closing deadline of October 23, 2026, at 5:00 PM. Primary inquiries regarding the content and language of the bid should be directed to Nizar Faruk. Prospective bidders may be required to register through the official City of Los Angeles website to participate in the procurement process.

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CONTRACTING FOR THE WATER SERVICES FOR ORNL AND THE Y-12 PLANT. COST TRANSFERThe Department of Energy, through the Oak Ridge Operations Office, is forecasting a contract for water services to support the Oak Ridge National Laboratory and the Y-12 plant located in Tennessee. This procurement falls under NAICS code 221310 and is specifically designated for water supply and distribution services, including cost transfer arrangements. The forecast was posted on October 18, 2026, and is categorized as a forecast with a set-aside type listed as other. Interested parties may coordinate with Small Business Program Managers Carol Jennings and Jamel Hooker for further information regarding this acquisition.

Oak Ridge Operations Office

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IGF::CT::IGF Contract to provide potable water to the SPR West Hackberry main site and Brine Disposal Well site. Fixed Price Service Contract with equitable rate adjustments as allowed by the regulat…This fixed price service contract, managed by the Department of Energy's Office of Cybersecurity, Energy Security and Emergency Response, provides potable water to the SPR West Hackberry main site and Brine Disposal Well site in Louisiana. The agreement is established for a ten year period with funding provided incrementally on an annual basis, allowing for equitable rate adjustments as permitted by the governing regulatory body. Cameron Parish Waterworks District No. 2 is designated as the sole provider for this requirement, as it is the only entity in the region capable of delivering water that complies with the Louisiana Department of Health and Hospitals Sanitary Code. The contract falls under NAICS code 221310 and ensures the delivery of essential water services to these critical sites.

Office of Cybersecurity, Energy Security and Emergency Response

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Y--GRCA 257282 - Replace Wastewater Plant at South Ri

Solicitation # 140P2026R0101

Solicitation 140P2026R0101 is an unrestricted full and open competition Invitation for Bid issued by the National Park Service, DSC Contracting Services Division, for the replacement of the South Rim Wastewater Treatment Plant at Grand Canyon National Park, Arizona. The project involves the construction of a GD Membrane Bio-Reactor wastewater treatment plant, including new treatment facilities, administrative and support buildings, and process systems. The scope of work encompasses complete demolition and removal of existing infrastructure, site preparation, grading, paving, fencing, and improvements to the facility access road. The project is estimated to exceed 100 million dollars, with a period of performance from February 1, 2027, to February 1, 2030, and a revised assumed Notice to Proceed date of April 1, 2027. The government will utilize a multi-factor, best-value tradeoff process for award, evaluating technical experience, technical approach, key personnel experience, and price. Key requirements include the provision of performance and payment bonds, adherence to union prevailing wage rates, and a 12-month operational support period following construction. Technical specifications emphasize strict cybersecurity hygiene for SCADA/MES equipment, full government rights to supplied software and source code, and compliance with ADA standards. Proposals must be submitted electronically in separate volumes, with specific evaluations focusing on the contractor's ability to manage complex wastewater plant commissioning and regulatory approvals.

Dsc Contracting Services Division

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Pressure Filtration System SupplierThis subcontract opportunity is for a Pressure Filtration System Supplier to provide core treatment technology for prime contractors working on water treatment projects for the City of Clovis Public Utilities Department in California. The selected supplier will be responsible for the fabrication and delivery of a complete filtration system, which includes filter pressure vessels, manganese dioxide filter media, manifolds, support skids, and hydraulically operated backwash valves. All provided equipment and materials must meet ANSI/NSF Standard 61 certification for potable water to ensure safety and compliance. Interested parties must submit their responses by the deadline of November 10, 2026.

Public Utilities Department of City of Clovis

POSTED

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RFP 9170 Water Treatment Program

Solicitation # 49476

Bowling Green State University is seeking proposals from qualified vendors to implement a comprehensive water treatment program for its Campus Operations department. This solicitation, identified as RFP 9170, is managed by the university's purchasing department and is open to providers capable of meeting the technical requirements of the program. Interested parties must submit all proposals and inquiries exclusively through the Bid Express platform by the deadline of October 30, 2026, at 4:00 PM. All communications must be directed to the designated purchasing contact, Jacob Konecny, as contacting other university personnel regarding this bid may result in the disqualification of the proposal.

Bowling Green State University - Purchasing

POSTED

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Process Equipment SupplierThis subcontract opportunity with Garney Pacific, Inc. is for a process equipment supplier to support wastewater treatment plant projects for the City of Redlands. The selected supplier will be responsible for providing and delivering specialized equipment, including pumps, chemical feed systems, filters, GAC, and HDPE tanks. The contract is set aside for various small business categories, including SBA certified Veteran, Service-Disabled Veteran, Women-Owned, and HUBZone small businesses. Key compliance requirements include the use of union labor and the provision of a 100% Payment and Performance Bond. Responses are due by November 12, 2026.

Garney Pacific, Inc.

POSTED

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Ion Exchange Resin Procurement, Installation, And Disposal For Pfas Treatment Systems

Solicitation # IFQ-26-001

The Orange County Water District (OCWD) is soliciting quotations under IFQ-26-001 for the procurement, installation, and disposal of virgin Ion Exchange (IX) resin media, specifically DuPont Amberlite PSR2+, to remove PFOA and PFOS from groundwater wells in north and central Orange County. The scope of work includes supplying the resin, installing it at new sites, replacing resin at existing sites, and managing the disposal of spent resin. The selected contractor must provide a written guarantee that effluent will not exceed 2 ng/L of PFOA or PFOS within the first 100 calendar days of use and must ensure all discharges comply with local City NPDES permits. The contract will be awarded to the lowest responsive and responsible bidder. Responsiveness is determined by the inclusion of a title page, a signed cover letter, and required compliance statements, while responsibility is evaluated based on the firm's experience, dependability, and safety record, including their Experience Modification Rate and Cal/OSHA history. Bidders must be registered with the Department of Industrial Relations, comply with prevailing wage laws, and meet specific insurance requirements, including naming OCWD as an additional insured. Pricing is structured in brackets based on annual volume for the first two years, with an optional third-year extension. Deliverables include the submission of a Quality Control Plan upon award and adherence to the OCWD Contractor Safety Program. Quotes must be submitted in sealed envelopes to the OCWD administration office in Fountain Valley, California, by November 3, 2026, at 10:00 AM PT.

Orange County Water District

POSTED

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Water Treatment Cartridge Filter SupplierThis subcontract agreement establishes a partnership for the supply of NSF-61 certified melt-blown polypropylene pleated cartridge filters intended for sediment removal on City of Tucson Water Department projects. The supplier is responsible for providing filters that meet specific technical requirements, including a 6 inch outer diameter, 60 inch length, 5 micron absolute retention, and 75 square feet of surface area, ensuring full compatibility with FILTREK housing and the provision of all necessary manufacturers data sheets. The contract mandates the delivery of 408 cartridges annually, distributed in quarterly batches of 102 units. This procurement falls under NAICS code 221320 and is managed through the Arizona Water Department, with a response deadline set for October 30, 2026.

Water Department

POSTED

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Well and Pump Maintenance Services

Solicitation # FIN2026-093Q

The City of Barrie has issued Request for Quotations FIN2026-093Q for as-required well and pump maintenance services throughout the city. The scope of work includes professional engineering and geosciences services for the diagnostic testing, maintenance, and rehabilitation of production, non-production, observation, and test wells, as well as well pumps, electric motors, and booster pumps. Key deliverables include performance testing, video inspections of wells, and digital reports signed by a Professional Engineer licensed in Ontario. All work must comply with AWWA Standard C-654, MECP O. Reg. 903, and the Ontario Ministry of the Environment’s Drinking Water Quality Management Standard, with all chemicals and materials meeting NSF 60, 61, 372, or 14 certifications. The contract is effective January 1, 2027, and services are provided on an as-needed basis. Award selection follows a three-stage evaluation process consisting of a pass/fail compliance review, a mandatory technical requirements assessment, and a final scoring of non-price rated criteria and pricing, with pricing weighted at 40 points of the total score. Submissions must be made electronically via the Bidding System by November 9, 2026, at 2:00 PM local time. Suppliers are required to provide a valid WSIA clearance certificate and maintain necessary insurance. Invoices must be itemized and submitted within 30 calendar days of work completion.

POSTED

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146409 WATER SOFTENER SYSTEM - RINALDI TOLUCA Chlorination Station

Solicitation # 232168

The Los Angeles Department of Water and Power is seeking bids for the installation or maintenance of a water softener system at the Rinaldi Toluca Chlorination Station. This solicitation, identified by number 232168, is categorized under NAICS code 221310 and is managed by the Water and Power agency in California. Interested parties must submit their bids electronically through the Electronic Request Solicit Procure system, as hard copy or mail-in submissions will not be accepted. The posting date is October 14, 2026, with a final response deadline of October 30, 2026. Gwendolyn Weaver serves as the primary point of contact for this opportunity.

POSTED

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Operation of the City of Fullerton's Kim 2 PFAS Treatment PlantThe State Water Resources Control Board of California is forecasting a project for the operation of a new PFAS treatment plant located at the existing Kim 2 facility in Fullerton, California. The primary objective of this initiative is to implement specialized treatment processes to remove per- and polyfluoroalkyl substances from the local drinking water supply to ensure public safety and regulatory compliance. Key coordination for this project involves the District Engineer from the State Water Resources Control Board, the Water Operations Manager for the City of Fullerton, and a Principal Planner from the Orange County Water District. The project is centered in the 92831 zip code of Fullerton and is currently listed as a forecast with a posted date of October 14, 2026.

State Water Resources Control Board

POSTED

DEADLINE

Plano EST Chloramine Boost PW-W-00010

Solicitation # 2026-0686-B

The City of Plano is soliciting proposals for the installation of temporary chloramine booster systems at the Jupiter and Tennyson Elevated Storage Tanks. This project, identified as solicitation 2026-0686-B, includes requirements for chemical dosing, mixing, and water quality testing, with an estimated project value of 716,100.00 dollars. All proposals must be submitted by November 11, 2026, at 8:00 PM CT, preferably through the IonWave electronic portal. In-person submissions are permitted on Mondays and Wednesdays between 10 a.m. and 2 p.m. at the Procurement Division. All inquiries must be handled electronically via IonWave, as phone and email questions will not be accepted. Bids will be opened publicly on November 12, 2026, at 2:00 PM CT at City Hall.

POSTED

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Supply of Manual Reservoir Irrigation SystemsThis subcontract involves the supply of 28 manual reservoir irrigation systems for prime contractors working on Awdurdod Parc Cenedlaethol Eryri projects. The required components must be compatible with planter volumes of 320L, 540L, and 840L and must be specifically designed to withstand year-round outdoor exposure. The opportunity was posted on October 12, 2026, with a response deadline of November 9, 2026. It is categorized under NAICS code 221310 and is managed by the Awdurdod Parc Cenedlaethol Eryri agency.

Awdurdod Parc Cenedlaethol Eryri

POSTED

DEADLINE