1905 High Street
Oroville, CA 95965
7:00 a.m. to 7:00 p.m.
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California Water Service
P.O. Box 4500
Whittier, CA 90607-4500
If you have a water-related emergency, please contact Cal Water using the Oroville after-hours phone number.
- April 29, 2022 Oroville Completes Treatment Facility to Remove PFOS
Cal Water's Oroville District has provided high-quality water utility services in Oroville since 1927. Most of the water we provide to our customers is surface water from the west branch of the Feather River, which is processed at our treatment plant. This surface water supply is supplemented by local groundwater produced by our four wells. Our system includes 52 miles of pipeline, two storage tanks, and six booster pumps. We may also utilize a connection with Thermalito Irrigation District during emergencies or treatment plant maintenance. We proactively maintain and upgrade our facilities to ensure a reliable, high-quality supply.
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