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Disinfection Byproduct Reduction Project

Active
State & Local

Contract Overview

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

AI Contract Overview

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The Westhaven Community Services District is undertaking the Disinfection Byproduct Reduction Project to modernize and enhance its water treatment system, ensuring reliable service and compliance with regulatory standards. Key improvements include the installation of new waterlines and electrical conduit from the 4th Avenue Well to the Water Treatment Plant (WTP) site, along with the replacement of aging water meters and meter boxes near 4th Avenue and the addition of new fire hydrants to bolster fire flow capacity. At the WTP, a new building will be constructed, alongside critical infrastructure such as a septic system, two propane tanks, an emergency backup generator, a Battery Energy Storage System, and a 200,000-gallon glass-fused bolted steel water tank with an aluminum domed roof. To manage groundwater at the tank site, a 6-inch sub-drain trench will be installed on the southwest side, and overflow from the new tank will be channeled through dechlorination and a rock-filled concrete cylinder into a bioswale. The existing slow sand filters will have their media replaced, and drainage, piping, and electrical upgrades will be completed across the facility. The project also integrates sustainable energy solutions with the installation of photovoltaic solar panels on the WTP building’s roof and a Supervisory Control and Data Acquisition (SCADA) system for real-time monitoring and operational efficiency. A significant utility upgrade involves converting the existing single-phase power alignment to 480V three-phase service and extending overhead powerlines to support the new facilities, which requires replacing existing PG&E poles and lines and installing a new power pole at the WTP. Additionally, the Humboldt crossing on Two Creek will be removed to address environmental and regulatory concerns. All work is designed to improve water quality, system reliability, fire protection, and environmental compliance within the district’s service area, with the project forecasted for 2026 and managed by the agency’s General Manager, Paul Rosenblatt.

General Info

Westhaven District upgrades water system with new tank, solar power, SCADA, fire hydrants, and 480V three-phase electrical service.

Agency

California → Westhaven Community Services District

NAICS

237110 - Water and Sewer Line and Related Structures ConstructionView NAICS

Place of Performance

4th Ave., Transit Ave., Railroad Ave., Cedar Ave., Spruce Ave., CA, 95570

Set-Aside

NONE

Documents

(2)

Addendum to Mitigated Negative Declaration for Westhaven CSD Disinfection Project

PDF•addendum

Notice of Determination - Westhaven CSD Disinfection Byproduct Reduction Project

PDF•notice-of-determination

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Timeline

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Organization & Contact Information

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AgencyCalifornia → Westhaven Community Services District
Contacts1 person available
OfficeN/A
Organization / Agency
California → Westhaven Community Services District
Office AddressN/A
Contacts
Paul RosenblattGeneral Manager
contact@example.gov
+1 (555) 000-0000

Full Description

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The project entails improvements to the District’s water system that are required to improve the water treatment process, replace aging and undersized infrastructure, provide additional water storage, and improve fire flows to ensure a reliable water supply in the District’s service area. Waterlines and electrical conduit would be installed from the 4th Avenue Well to the WTP site. Fire hydrants would be installed on 4th Avenue. Existing water meters and meter boxes adjacent to 4th Avenue would be replaced. Improvements at the WTP site include construction of a new WTP building, installation of a septic tank and leach field, installation of two propane tanks, an emergency back-up generator, a Battery Energy Storage System, and a hydropneumatic tank, installation of drainage improvements, improvements to the existing access driveway, and installation of a ~200,000 gallon glass-fused bolted steel water tank with an aluminum domed roof. Due to the presence of groundwater in the new water tank site, a 6-inch sub-drain trench would be installed along the southwest side of the new tank to capture groundwater and direct it away from the tank site. The overflow drain for the new tank would be directed to the overflow for the existing tank located immediately west of the new tank. Overflow piping would be installed to route drainage through a dechlorination diffuser and into a rock-filled concrete cylinder that can overflow into the new bioswale. Sand and gravel media in both slow sand filters would be replaced. Appurtenant piping, drainage, and electrical improvements would be completed. Photovoltaic (PV) solar panels would be installed on the roof of the WTP building. A Supervisory Control and Data Acquisition (SCADA) system would be installed. A “Humboldt crossing” on Two Creek would be removed. Improvements at the WTP require conversion of a single-phase power alignment to 480V/3-phase as well as extension of powerline to the new WTP facilities. This would entail replacing existing PG&E power poles, overhead powerlines, and appurtenant facilities, and extending an overhead electrical line to a new power pole at the WTP.

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