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Tap water quality report

White Oak Mutual Water Company

EPA monitoring tested this supplier for 37 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

37
contaminants tested
3
detected
415
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Shasta

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
10
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2022-06-01 → 2022-06-30
MON Monitoring Resolved 2022-06-01 → 2022-06-30
MR Monitoring Resolved 1993-07-01 → 2003-12-31
Other Monitoring Archived 1984-09-01 → 1984-09-30
Other Monitoring Archived 1984-07-01 → 1984-07-31
Other Monitoring Archived 1983-01-01 → 1983-01-31
Other Monitoring Archived 1982-11-01 → 1982-11-30
Other Monitoring Archived 1982-10-01 → 1982-10-31
MR Monitoring Archived 1981-10-01 → 1982-09-30
MR Monitoring Archived 1980-10-30 → 1981-10-29

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
1423.5 µg/L 14%
of the EPA limit 10000 µg/L
worst single sample: 1440 µg/L
32/32 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2023
Fluoride
119.5 µg/L 3%
of the EPA limit 4000 µg/L
worst single sample: 120 µg/L
2/2 SYR4 2019
34 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBariumBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneLeadMercuryNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HAAS, DAN
Phone
530-365-7655
Email
danmanhaas@gmail.com

Frequently asked questions about White Oak Mutual Water Company

Is White Oak Mutual Water Company tap water safe to drink?

EPA monitoring detected 3 contaminants in White Oak Mutual Water Company's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in White Oak Mutual Water Company's water?

EPA monitoring detected Nitrate, Lead, Fluoride. The full list with the level and data source for each is above.

How many people does White Oak Mutual Water Company serve?

White Oak Mutual Water Company reports serving 415 people in California, per its EPA record.

Has White Oak Mutual Water Company had any water quality violations?

The EPA has 10 violations on file for White Oak Mutual Water Company, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.