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Kern Valley Mutual Water Company

EPA monitoring tested this supplier for 39 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

39
contaminants tested
6
detected
132
people served
9
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Kern

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.

9
health-based violations
40
violations on file
4
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
TT Health-based Resolved 2022-05-01
TT Health-based Resolved 2022-05-01
MCL Health-based Resolved 2006-08-01 → 2006-08-31
MCL Health-based Resolved 2006-08-01 → 2006-08-31
MCL Health-based Resolved 2005-04-01 → 2005-04-30
MCL Health-based Resolved 2005-04-01 → 2005-04-30
MCL Health-based Resolved 2005-03-01 → 2005-03-31
MCL Health-based Resolved 2005-03-01 → 2005-03-31
MR Monitoring Addressed 2025-10-01

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
1907.58 µg/L 19%
of the EPA limit 10000 µg/L
worst single sample: 2100 µg/L
30/32 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2022
Fluoride
901.5 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 930 µg/L
4/4 SYR4 2012–2015
Antimony, Total
2.39 µg/L 40%
of the EPA limit 6 µg/L
worst single sample: 2.4 µg/L
2/4 SYR4 2012–2015
Arsenic
2.8 µg/L 28%
of the EPA limit 10 µg/L
 2/4 SYR4 2012–2015
Mercury
0.6000 µg/L 30%
of the EPA limit 2 µg/L
 1/4 SYR4 2012–2015
33 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAsbestosAtrazineBariumBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneLeadNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ESPE, GEORGE G.
Phone
661-859-6142
Email
kernvalleymwc@gmail.com

Frequently asked questions about Kern Valley Mutual Water Company

Is Kern Valley Mutual Water Company tap water safe to drink?

EPA monitoring detected 6 contaminants in Kern Valley 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 Kern Valley Mutual Water Company's water?

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

How many people does Kern Valley Mutual Water Company serve?

Kern Valley Mutual Water Company reports serving 132 people in California, per its EPA record.

Has Kern Valley Mutual Water Company had any water quality violations?

The EPA has 40 violations on file for Kern Valley Mutual Water Company, of which 9 are health-based (a contaminant limit or required treatment was breached) and 4 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.