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.
4
health-based violations
8
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 1992-11-01 → 1992-11-30 |
| MCL | Health-based | Resolved | 1992-11-01 → 1992-11-30 |
| MCL | Health-based | Resolved | 1992-08-01 → 1992-08-31 |
| MCL | Health-based | Resolved | 1992-08-01 → 1992-08-31 |
| MR | Monitoring | Resolved | 2010-01-01 → 2010-12-31 |
| MR | Monitoring | Resolved | 2010-01-01 → 2010-12-31 |
| MR | Monitoring | Resolved | 2001-01-01 → 2001-12-31 |
| MR | Monitoring | Resolved | 2001-01-01 → 2001-12-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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 | 12.721 µg/L 127% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 38.376 µg/L | 2503/3174 | SYR4 | 2012–2019 |
| Nitrate | 4068.9 µg/L 41% of the EPA limit 10000 µg/L
worst single sample: 5900 µg/L | 1404/1512 | SYR4 | 2012–2019 |
| Combined Uranium | 7.34391 µg/L 24% of the EPA limit 30 µg/L
worst single sample: 21.0209 µg/L | 289/438 | SYR4 | 2012–2019 |
| TTHM | 48.82 µg/L 61% of the EPA limit 80 µg/L
worst single sample: 76.9 µg/L | 285/432 | SYR4 | 2012–2019 |
| Barium | 82.0744 µg/L 4.1% of the EPA limit 2000 µg/L
worst single sample: 120 µg/L | 229/476 | SYR4 | 2012–2019 |
| Chloroform | 43.698 µg/L No EPA limit set
worst single sample: 66 µg/L | 177/431 | SYR4 | 2012–2019 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0900 µg/L 45% of the EPA limit 0.2000 µg/L
worst single sample: 0.2600 µg/L | 162/1070 | SYR4 | 2012–2019 |
| Lead | 8.4086 µg/L 56% of the EPA limit 15 µg/L
worst single sample: 41.758 µg/L | 154/525 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.869 µg/L No EPA limit set
worst single sample: 35.06 µg/L | 148/431 | SYR4 | 2012–2019 |
| Fluoride | 344.5 µg/L 8.6% of the EPA limit 4000 µg/L
worst single sample: 980 µg/L | 148/170 | SYR4 | 2012–2019 |
| Copper | 63.6892 µg/L 4.9% of the EPA limit 1300 µg/L
worst single sample: 108.9 µg/L | 145/659 | SYR4 | 2012–2019 |
| Bromoform | 3.054 µg/L No EPA limit set
worst single sample: 24.12 µg/L | 130/431 | SYR4 | 2012–2019 |
| Antimony, Total | 0.3872 µg/L 6.5% of the EPA limit 6 µg/L
worst single sample: 2.1 µg/L | 127/512 | SYR4 | 2012–2019 |
| Bromodichloromethane | 10.8685 µg/L No EPA limit set
worst single sample: 22.6 µg/L | 122/431 | SYR4 | 2012–2019 |
| Selenium | 2.3 µg/L 4.6% of the EPA limit 50 µg/L
worst single sample: 50 µg/L | 122/502 | SYR4 | 2012–2019 |
| Chromium | 3.1549 µg/L 3.2% of the EPA limit 100 µg/L
worst single sample: 12 µg/L | 107/501 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 53.8 µg/L 90% of the EPA limit 60 µg/L
worst single sample: 59 µg/L | 85/229 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 23 µg/L No EPA limit set
worst single sample: 26 µg/L | 84/229 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 549000 µg/L 5490% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 1000000 µg/L | 83/94 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 29.7 µg/L No EPA limit set
worst single sample: 34 µg/L | 83/229 | SYR4 | 2012–2019 |
| 1,2-Dichloropropane | 0.6345 µg/L 13% of the EPA limit 5 µg/L
worst single sample: 0.6600 µg/L | 72/566 | SYR4 | 2012–2019 |
| Cadmium | 0.1510 µg/L 3% of the EPA limit 5 µg/L
worst single sample: 0.1620 µg/L | 61/519 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 2.53 µg/L 51% of the EPA limit 5 µg/L
worst single sample: 2.8 µg/L | 56/566 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.37 µg/L No EPA limit set
worst single sample: 3.4 µg/L | 47/229 | SYR4 | 2012–2019 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2025 |
| Beryllium, Total | 0.0118 µg/L 0.3% of the EPA limit 4 µg/L
worst single sample: 0.0370 µg/L | 23/463 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 1.366 µg/L 20% of the EPA limit 7 µg/L
worst single sample: 1.4 µg/L | 18/566 | SYR4 | 2012–2019 |
| Mercury | 6.544 µg/L 327% of the EPA limit, at the 95th percentile of samples — 2 µg/L
worst single sample: 11 µg/L | 11/186 | SYR4 | 2012–2019 |
| Thallium, Total | 0.0160 µg/L 0.8% of the EPA limit 2 µg/L
worst single sample: 0.0260 µg/L | 11/482 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 0.8020 µg/L 1.1% of the EPA limit 70 µg/L
worst single sample: 0.8900 µg/L | 9/566 | SYR4 | 2012–2019 |
| Ethylene Dibromide | 0.0600 µg/L 120% of the EPA limit, at the 95th percentile of samples — 0.0500 µg/L | 8/1062 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 4.95 µg/L No EPA limit set
worst single sample: 5.4 µg/L | 7/229 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.6770 µg/L 14% of the EPA limit 5 µg/L
worst single sample: 0.6800 µg/L | 7/566 | SYR4 | 2012–2019 |
| Nitrite | 136.018 µg/L 14% of the EPA limit 1000 µg/L
worst single sample: 170 µg/L | 5/169 | SYR4 | 2012–2019 |
| Lithium | 14.8 µg/L No EPA limit set | 3/81 | UCMR-5 | 2025 |
| Cyanide | 10 µg/L 5% of the EPA limit 200 µg/L | 1/168 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.4 pCi/L No EPA limit set | 1/4 | SYR4 | 2017–2018 |
73 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBromateChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPfmbaPfmpaPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Bakersfield, City of
Is Bakersfield, City of tap water safe to drink?
EPA monitoring detected 40 contaminants in Bakersfield, City of'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 Bakersfield, City of's water?
EPA monitoring detected Arsenic, Nitrate, Combined Uranium, TTHM, Barium, and others. The full list with the level and data source for each is above.
How many people does Bakersfield, City of serve?
Bakersfield, City of reports serving 160,144 people in California, per its EPA record.
Has Bakersfield, City of had any water quality violations?
The EPA has 8 violations on file for Bakersfield, City of, of which 4 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.