North Coast County Water District

Given by the San Francisco Local Water System (SFRWS), which is owned and operated by the Bay area Public Utilities Commission rate (SFPUC), our main water source arises from spring snowmelt moving down the Tuolumne Water to storage found in Hetch Hetchy Tank. The well guarded Sierra water resource is exempt from purification requirements by the Usa Environmental Protection Agency (USEPA) and State Water Assets Control Board's Label of Drinking Water (SWRCB-DDW). To fulfill the appropriate drinking water requirements for consumption, drinking water from Hetch Hetchy Reservoir is cured by the SFPUC making use of the following processes: ultraviolet (uv) light and chlorine disinfection, pH adjusting for optimal corrosion control, fluoridation intended for dental health protection, and chloramination for keeping disinfectant residual and minimizing the formation of disinfection byproducts. Hetch Hetchy water is usually supplemented with surface area water from two local watersheds. Rainfall and runoff from your 35, 000-acre Chopera Watershed in Chopera and Santa Albúmina counties are gathered in the Calaveras and San Antonio reservoirs and delivered to the Sunol Valley Drinking water Treatment Plant (SVWTP). Rainfall and runoff from the 23, 000-acre Peninsula Watershed in San Mateo Region are stored in the Crystal Springs, San Andreas and Pilarcitos reservoirs, and are sent to the Harry Tracy Water Treatment Herb. In addition to these regional sources, the SWRCB-DDW approved the SFPUC to use the surface drinking water in Lake Eleanor, Lake Cherry as well as the associated creeks almost all conveyed via the Reduce Cherry Aqueduct, Early on Intake Reservoir and Tuolumne River (collectively known as Upcountry NonHetch Hetchy Sources, or perhaps UNHHS) as extra drinking water sources towards the SFRWS. The UNHHS water, if utilized, will be treated in the SVWTP before to customers. In 2017, the SFRWS would not use UNHHS. Drinking water at the two regional treatment plants is usually subject to filtration, disinfection, fluoridation, and ideal corrosion control simply by pH adjustment. Watersheds Protection The SFPUC conducts watershed hygienic surveys for the Hetch Hetchy resource annually and local drinking water sources every five years. The latest regional sanitary survey was completed in 2016 intended from 2011 through 2015. The SFPUC carried out a watershed hygienic survey for UNHHS in 2015 within its drought response plan efforts. These types of surveys evaluate the hygienic conditions, water top quality, potential contamination resources and the results of watershed management actions, and were finished with support from spouse agencies including Nationwide Park Service and US Forest Support. These surveys recognized wildlife, stock, and human activities while potential contamination resources. You may contact the San Francisco District workplace of SWRCB-DDW in 510-620-3474 to view these types of reports..

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