O&M Water Quality
Taking Care of Business
- SWP WQ News & Updates
- CA Data Exchange Center (CDEC)
- Water Data Library (WDL)
- Division of Environmental Services, Municiple Water Quality Investigations, Delta Water Quality Monitoring
- CA Irrigation Management Information System (CIMIS)
- Interagency Ecological Program (IEP)
- O&M WQ Publications
Department of Water Resources
Division of Operations Maintenance
Water Quality Section
1416 9th Street, Room 620
Sacramento, CA 95814
P. O. Box 942836
Sacramento, CA 94236
DWR operates and maintains 12 Public Water Systems (PWS) along the SWP. CA Health and Safety Code [HSC] §116275(h) defines a PWS as a system for the provision of water for human consumption through pipes or other constructed conveyance that has 15 or more service connections or regularly serves at least 25 individuals daily for at least 60 days out of the year . The SWP PWSs, also known as Water Treatment Plants (WTP) are operated by the field divisions' drinking water treatment certified staff.
Five of the WTPs are permitted by the CA Department of Public Health, Division of Drinking Water and Environmental Management as small water systems (SWS). A SWS is defined as a PWS serving less than or equal to 1,000 service connections and less than or equal to 3,300 population [HSC §116275(n)]. The 12 WTPs provide drinking water to staff, and irrigation and fire flow supplies to the SWP facilities.
Through their operations and reporting, DWR staff ensures compliance with the State drinking water regulations, supports source water assessments, and promotes drought preparedness and water conservation efforts. Additionally, staff oversees equipment installation and responds to operational emergencies.
The following field divisions operate these WTPs:
- Delta Field Division - Harvey O. Banks (CDPH permitted SWS) and Skinner Fish Facility
- San Luis Field Division - San Luis Operations and Maintenance (O&M) Center (CDPH permitted SWS), Dos Amigos, and Coalinga Sub-Center
- San Joaquin Field Division - Teerink, Chrisman (CDPH permitted SWS), and Edmonston (CDPH permitted SWS)
- Southern Field Division - Oso, Warne, Vista Del Lago (CDPH permitted SWS), and Cedar Springs
Consumer Confidence Report (CCR):
Visit the CA Department of Public Health, Division of Drinking Water and Environmental Management CCR for more CCR information, guidance, and templates.
Other O&M water quality reports may be found on the DWR Publicatons web page using the link to "Publications & Video Repository." Choose the "State Water Project" topic and then choose the "Water Quality" topic for a listing of publications.