Overview
SFPUC Sunol Valley Chloramination Facility/San Antonio Pump Station is a distribution pump station in Sunol, California, serving the San Francisco Public Utilities Commission's water system. It supports potable water treatment and distribution in Ala
The SFPUC Sunol Valley Chloramination Facility/San Antonio Pump Station is a distribution pump station located at 5555 Calaveras Road in Sunol, California. Operated by the San Francisco Public Utilities Commission (SFPUC), this facility plays a key role in the regional water supply system, specifically supporting chloramination processes for disinfection and pumping treated water into the distribution network. As part of California's extensive water infrastructure, this pump station operates under state and federal regulations including the Safe Drinking Water Act and California Water Code. The facility is part of the SFPUC's Hetch Hetchy Regional Water System, which supplies water to 2.7 million customers in the San Francisco Bay Area. Distribution pump stations like this one are critical for maintaining water pressure and quality throughout the network. The Sunol Valley facility contributes to the reliability of the regional water supply by ensuring adequate disinfection and pumping capacity. Its location in Alameda County supports both residential and commercial water needs in the East Bay area. The station's operational status underscores the ongoing investment in maintaining aging water infrastructure in California.
Environmental context
The facility is situated in the Sunol Valley, an area with Mediterranean climate and seasonal water availability challenges. Pump stations in this region are vital for managing water distribution from the Sierra Nevada snowpack via the Hetch Hetchy system. The chloramination process helps reduce disinfection byproducts while maintaining water quality across long distribution networks. Local environmental considerations include protecting the nearby Alameda Creek watershed and minimizing energy use for pumping operations.
Frequently asked questions
The facility is located at 5555 Calaveras Road in Sunol, California, within Alameda County. It is part of the San Francisco Public Utilities Commission's water infrastructure.
This distribution pump station supports chloramination for water disinfection and pumps treated water into the SFPUC's distribution network, serving customers in the San Francisco Bay Area.
Distribution pump stations in California must comply with the Safe Drinking Water Act, California Water Code, and local mechanical/electrical safety codes. The State Water Resources Control Board oversees water quality and supply.
By maintaining chloramination and pumping capacity, the facility ensures consistent water pressure and quality for the SFPUC system, which serves over 2.7 million people in the Bay Area.
Chloramination uses chlorine and ammonia to form chloramines, which provide longer-lasting disinfection in distribution systems while reducing the formation of disinfection byproducts compared to free chlorine.
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