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
3
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2011-01-01 |
| MR | Monitoring | Resolved | 2011-01-01 |
| MR | Monitoring | Resolved | 2005-01-01 → 2005-12-31 |
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.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 13 µg/L 130% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 23 µg/L | 681/1240 | SYR4 | 2012–2019 |
| Nitrate | 6097.8 µg/L 61% of the EPA limit 10000 µg/L
worst single sample: 6780 µg/L | 228/242 | SYR4 | 2012–2019 |
| Combined Uranium | 31.29 µg/L 104% of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 34.27 µg/L | 41/42 | SYR4 | 2012–2019 |
| Barium | 62.2 µg/L 3.1% of the EPA limit 2000 µg/L
worst single sample: 103 µg/L | 29/46 | SYR4 | 2012–2019 |
| Fluoride | 337.2 µg/L 8.4% of the EPA limit 4000 µg/L
worst single sample: 440 µg/L | 29/41 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 26/26 | LCR | 2024 |
| Antimony, Total | 10.75 µg/L 179% of the EPA limit, at the 95th percentile of samples — 6 µg/L
worst single sample: 22 µg/L | 16/83 | SYR4 | 2012–2019 |
| Bromoform | 24 µg/L No EPA limit set
worst single sample: 27 µg/L | 16/16 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 4.025 µg/L No EPA limit set
worst single sample: 4.4 µg/L | 16/16 | SYR4 | 2013–2019 |
| Dibromochloromethane | 5.5 µg/L No EPA limit set
worst single sample: 6.1 µg/L | 16/16 | SYR4 | 2013–2019 |
| TTHM | 28 µg/L 35% of the EPA limit 80 µg/L
worst single sample: 34 µg/L | 16/16 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 953000 µg/L 9530% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 960000 µg/L | 15/17 | SYR4 | 2013–2019 |
| Lead | 11.175 µg/L 75% of the EPA limit 15 µg/L
worst single sample: 19.3 µg/L | 14/64 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 4.34 µg/L 7.2% of the EPA limit 60 µg/L
worst single sample: 4.4 µg/L | 13/16 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 7.64 pCi/L No EPA limit set
worst single sample: 8.2 pCi/L | 8/10 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.37 µg/L No EPA limit set
worst single sample: 1.4 µg/L | 7/16 | SYR4 | 2013–2019 |
| Chromium | 3.46 µg/L 3.5% of the EPA limit 100 µg/L
worst single sample: 4 µg/L | 7/51 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.3295 pCi/L 6.6% of the EPA limit 5 pCi/L
worst single sample: 0.3430 pCi/L | 7/7 | SYR4 | 2019 |
| Selenium | 6.75 µg/L 14% of the EPA limit 50 µg/L
worst single sample: 7 µg/L | 6/41 | SYR4 | 2012–2019 |
| Copper | 33.8 µg/L 2.6% of the EPA limit 1300 µg/L
worst single sample: 39 µg/L | 5/41 | SYR4 | 2012–2019 |
| Nitrite | 2.75 µg/L 0.3% of the EPA limit 1000 µg/L
worst single sample: 2.82 µg/L | 5/46 | SYR4 | 2012–2019 |
| Thallium, Total | 7.3 µg/L 365% of the EPA limit, at the 95th percentile of samples — 2 µg/L
worst single sample: 8 µg/L | 3/42 | SYR4 | 2012–2019 |
| Chlorobenzene | 2.525 µg/L 2.5% of the EPA limit 100 µg/L
worst single sample: 2.6 µg/L | 2/48 | SYR4 | 2012–2019 |
| Mercury | 1 µg/L 50% of the EPA limit 2 µg/L | 2/41 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.695 µg/L No EPA limit set
worst single sample: 1.7 µg/L | 2/16 | SYR4 | 2013–2019 |
| Cadmium | 1 µg/L 20% of the EPA limit 5 µg/L | 1/46 | SYR4 | 2012–2019 |
| Ethylbenzene | 1.4 µg/L 0.2% of the EPA limit 700 µg/L | 1/48 | SYR4 | 2012–2019 |
| Styrene | 2.1 µg/L 2.1% of the EPA limit 100 µg/L | 1/48 | SYR4 | 2012–2019 |
| Xylenes, Total | 1 µg/L 0% of the EPA limit 10000 µg/L | 1/48 | SYR4 | 2012–2019 |
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalCyanideCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndothallEndrinHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about West Kern Water District
Is West Kern Water District tap water safe to drink?
EPA monitoring detected 29 contaminants in West Kern Water District'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 West Kern Water District's water?
EPA monitoring detected Arsenic, Nitrate, Combined Uranium, Barium, Fluoride, and others. The full list with the level and data source for each is above.
How many people does West Kern Water District serve?
West Kern Water District reports serving 20,500 people in California, per its EPA record.
Has West Kern Water District had any water quality violations?
The EPA has 3 violations on file for West Kern Water District, 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.