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.
15
health-based violations
22
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2007-01-01 → 2007-03-31 |
| TT | Health-based | Resolved | 2007-01-01 → 2007-03-31 |
| TT | Health-based | Resolved | 2006-10-01 → 2006-12-31 |
| TT | Health-based | Resolved | 2006-10-01 → 2006-12-31 |
| MCL | Health-based | Resolved | 2006-04-01 → 2006-06-30 |
| MCL | Health-based | Resolved | 2006-04-01 → 2006-06-30 |
| MCL | Health-based | Resolved | 1993-01-01 → 1993-12-31 |
| MCL | Health-based | Resolved | 1993-01-01 → 1993-12-31 |
| MCL | Health-based | Archived | 1987-01-01 → 1987-01-31 |
| MCL | Health-based | Archived | 1987-01-01 → 1987-01-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfba | 0.0070 µg/L | 2/22 | 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 | 25 µg/L 250% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 37 µg/L | 453/660 | SYR4 | 2012–2019 |
| Nitrate | 7600 µg/L 76% of the EPA limit 10000 µg/L
worst single sample: 13000 µg/L | 248/302 | SYR4 | 2012–2019 |
| TTHM | 50.45 µg/L 63% of the EPA limit 80 µg/L
worst single sample: 110 µg/L | 172/187 | SYR4 | 2012–2019 |
| Dibromochloromethane | 18 µg/L No EPA limit set
worst single sample: 34 µg/L | 169/208 | SYR4 | 2012–2019 |
| Bromodichloromethane | 17 µg/L No EPA limit set
worst single sample: 39 µg/L | 168/208 | SYR4 | 2012–2019 |
| Bromoform | 13.7 µg/L No EPA limit set
worst single sample: 36 µg/L | 167/208 | SYR4 | 2012–2019 |
| Chloroform | 13 µg/L No EPA limit set
worst single sample: 33 µg/L | 162/208 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 30.4 µg/L 51% of the EPA limit 60 µg/L
worst single sample: 41 µg/L | 125/171 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 7.025 µg/L No EPA limit set
worst single sample: 11 µg/L | 116/171 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 13 µg/L No EPA limit set
worst single sample: 19 µg/L | 98/171 | SYR4 | 2012–2019 |
| Fluoride | 1100 µg/L 28% of the EPA limit 4000 µg/L
worst single sample: 1400 µg/L | 94/94 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10.3 µg/L No EPA limit set
worst single sample: 13 µg/L | 75/171 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 5.85 µg/L No EPA limit set
worst single sample: 7.7 µg/L | 51/171 | SYR4 | 2012–2019 |
| Combined Uranium | 13.0584 µg/L 44% of the EPA limit 30 µg/L
worst single sample: 15.645 µg/L | 45/47 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 22.2 µg/L No EPA limit set
worst single sample: 29 µg/L | 30/171 | SYR4 | 2012–2019 |
| Barium | 186 µg/L 9.3% of the EPA limit 2000 µg/L
worst single sample: 200 µg/L | 25/60 | SYR4 | 2013–2019 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L | 23/23 | LCR | 2025 |
| Gross Beta Particle Activity | 6.96 pCi/L No EPA limit set
worst single sample: 7.41 pCi/L | 19/20 | SYR4 | 2013–2019 |
| Selenium | 16 µg/L 32% of the EPA limit 50 µg/L
worst single sample: 19 µg/L | 16/60 | SYR4 | 2013–2019 |
| Lithium | 39 µg/L No EPA limit set | 12/22 | UCMR-5 | 2025 |
| Copper | 456 µg/L 35% of the EPA limit 1300 µg/L
worst single sample: 480 µg/L | 9/103 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 5820 µg/L 58% of the EPA limit 10000 µg/L
worst single sample: 6200 µg/L | 5/5 | SYR4 | 2017 |
| Dichloromethane | 1.529 µg/L 31% of the EPA limit 5 µg/L
worst single sample: 1.7 µg/L | 4/70 | SYR4 | 2013–2019 |
| Chromium | 1.19 µg/L 1.2% of the EPA limit 100 µg/L
worst single sample: 1.2 µg/L | 2/60 | SYR4 | 2013–2019 |
| Lead | 8 µg/L 53% of the EPA limit 15 µg/L
worst single sample: 8.1 µg/L | 2/63 | SYR4 | 2013–2019 |
| Nitrite | 95.0125 µg/L 9.5% of the EPA limit 1000 µg/L
worst single sample: 100 µg/L | 2/68 | SYR4 | 2013–2019 |
86 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Elsinore Valley Mwd
Is Elsinore Valley Mwd tap water safe to drink?
EPA monitoring detected 27 contaminants in Elsinore Valley Mwd'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 Elsinore Valley Mwd's water?
EPA monitoring detected Arsenic, Nitrate, TTHM, Dibromochloromethane, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Elsinore Valley Mwd serve?
Elsinore Valley Mwd reports serving 169,455 people in California, per its EPA record.
Has Elsinore Valley Mwd had any water quality violations?
The EPA has 22 violations on file for Elsinore Valley Mwd, of which 15 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.