Water - Wastewater Services
GCSD obtains all of its water from the San Francisco Public Utilities Commission’s Hetch Hetchy Reservoir. This pristine water originates in Yosemite National Park as snow melt from a large watershed in the High Sierra. With controlled human contact and granite-type geology, the mineral content of this water is far lower than most bottled water, and the bacterial counts approach zero.
GCSD's Water System distributes water to the populated areas of Big Oak Flat, Groveland, and Pine Mountain Lake. The GCSD water supply and distribution system includes 3 water treatment plants, 5 storage reservoirs, and approximately 70 miles of distribution piping. The District provides a treated water supply to approximately 3,500 customers. GCSD is also responsible for Wastewater Collection for approximately 1,500 residents of the Groveland and Big Oak Flat communities. The Wastewater Collection System includes 16 sewerage lift stations, 35 miles of gravity mains, 7 miles of force mains, a recycled water treatment plant, 2 surface storage reservoirs, and approximately 15 acres of spray fields.