Water Departments in Placer County, California

Find Placer County, California water departments, districts, authorities, boards, and services. Water departments provide information on drinking water, treatment plants, sewage treatment, water conservation, and testing.

There are 3 Water Departments in Placer County, California, serving a population of 374,985 people in an area of 1,407 square miles. There is 1 Water Department per 124,995 people, and 1 Water Department per 468 square miles.

In California, Placer County is ranked 27th of 58 counties in Water Departments per capita, and 17th in Water Departments per square mile.


Alpine Springs County Water Department 270 Alpine Meadows Road Alpine Meadows, CA

Placer County Water Department 492 Maidu Drive Auburn, CA

Roseville Water Department 2005 Hilltop Circle Roseville, CA

About Placer County Water Departments

The Placer County Water Department or Water Utility is a government agency or private company that operates a public water system, which provides potable tap water directly to residential, commercial, industrial, and institutional customers in Placer County, CA.

You may contact the Water Department for questions about:
  • Water utility bills and payments
  • Placer County drinking water
  • Drinking water quality testing and safety
  • Water treatment facilities in Placer County, CA
Placer County Water Utility Companies

Water Departments in Placer County operate as an utility and are self-sustaining operations funded through user fees. Placer County water rates may be subject to approval from a state regulatory authority such as a California Public Service Commission or Utility Control Authority.

Public Drinking Water

Water Departments, or Water Companies in Placer County typically own the sources of drinking water they provide and must manage and maintain those sources and their surrounding areas. Surface sources include reservoirs, lakes, and rivers. Placer County groundwater sources can be found in pockets beneath the ground, which can be accessed by drilling wells. Maintenance of Placer County drinking water source sites and limitations on permitted activity around water sources helps minimize contamination. However, drinking water requires treatment prior to distribution to customers.

Water Treatment Facilities in Placer County, CA

Placer County water treatment facilities are used to remove contaminants and make drinking water safe for consumption. Treatment of water begins with the removal of the larger particles in the water through processes known as coagulation, flocculation, and sedimentation. After the large particles are removed, water is filtered through materials such as sand, gravel, and charcoal to remove dissolved particles. The final stage of treatment involves disinfection using chemicals or ultraviolet irradiation. Placer County Water Departments may add fluoride to water at this stage as part of a community health effort to support oral health in the general population. Water Departments are responsible for the day-to-day operations and maintenance of Placer County water treatment facilities. Equipment must also be periodically replaced and treatment processes may also be periodically upgraded.

From the treatment plant, water reaches its customers through a distribution system consisting of pipes, referred to as water mains, storage tanks, and pumping stations. Individual customers connect to water mains to bring public drinking water directly to their properties in Placer County, California.

Water Testing in Placer County

Water Companies typically have a laboratory or testing division responsible for monitoring the quality of tap water throughout the process, from source to distribution. California state regulations require Water Utilities to prepare and issue Placer County water quality reports to the general public several times per year.