Is South Oroville, CA tap water safe?
The short answer
Neither of the 2 utilities serving South Oroville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records.
South Feather W&P - Miners Ranch, which serves the most people here, has nothing above a health goal in EPA’s and California’s records. That data covers what its report lists, not everything.
The water from South Feather W&P - Miners Ranch is soft, 27 mg/L (1.6 grains per gallon). How California’s water compares.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in South Oroville’s ZIP codes, from EPA’s estimates.
- Open report
South Feather W&P - Miners Ranch
California · serves 22,638 people · about 320 in South Oroville
Nothing in its records is above a health goal. Hardness: soft, 27 mg/L (1.6 grains per gallon).
No health-based violations since 2016
- Open report
Cal - Water Service Co. - Oroville
California · serves 11,047 people · under 100 in South Oroville
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 81.3 ppb, above EPA’s health benchmark. Hardness: soft to hard depending on the source, 37 to 145 mg/L (2.2 to 8.5 grains per gallon).
No health-based violations since 2016
Water testing near South Oroville
The 3 labs California certifies closest to South Oroville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Cranmer Engineering, Inc.
Grass Valley, CA · about 26 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Fruit Growers Laboratory, Inc.
Chico, CA · about 30 miles
Certified for bacteria
Onterris Laboratories, LLC
El Dorado Hills, CA · about 61 miles
Certified for organic chemicals, PFAS
ZIP codes in South Oroville
Which ZIP codes are in South Oroville: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near South Oroville
Other towns in Butte County with a page of their own.
What to do next
- Read South Feather W&P - Miners Ranch’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water