Compliance record
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 |
|---|---|---|---|---|
| Bromodichloromethane | 21 µg/L No EPA limit set
worst single sample: 31.6 µg/L | 330/330 | SYR4 | 2012–2019 |
| Chloroform | 32.595 µg/L No EPA limit set
worst single sample: 69.3 µg/L | 330/330 | SYR4 | 2012–2019 |
| TTHM | 64.08 µg/L 80% of the EPA limit 80 µg/L
worst single sample: 109.1 µg/L | 330/330 | SYR4 | 2012–2019 |
| Dibromochloromethane | 20 µg/L No EPA limit set
worst single sample: 24.1 µg/L | 329/330 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 25.795 µg/L 43% of the EPA limit 60 µg/L
worst single sample: 47.1 µg/L | 328/328 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 15.975 µg/L No EPA limit set
worst single sample: 27.3 µg/L | 326/328 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 6.285 µg/L No EPA limit set
worst single sample: 20 µg/L | 324/328 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.995 µg/L No EPA limit set
worst single sample: 6.3 µg/L | 322/328 | SYR4 | 2012–2019 |
| Bromoform | 8.245 µg/L No EPA limit set
worst single sample: 13.1 µg/L | 312/330 | SYR4 | 2012–2019 |
| Fluoride | 764.5 µg/L 19% of the EPA limit 4000 µg/L
worst single sample: 850 µg/L | 54/54 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 28/28 | LCR | 2025 |
| Arsenic | 4.19 µg/L 42% of the EPA limit 10 µg/L
worst single sample: 4.4 µg/L | 7/8 | SYR4 | 2012–2019 |
| Combined Uranium | 3.5313 µg/L 12% of the EPA limit 30 µg/L
worst single sample: 3.576 µg/L | 7/9 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.3 µg/L No EPA limit set
worst single sample: 3.6 µg/L | 7/328 | SYR4 | 2012–2019 |
| Lithium | 54.1 µg/L No EPA limit set | 4/4 | UCMR-5 | 2024 |
| Barium | 119.5 µg/L 6% of the EPA limit 2000 µg/L
worst single sample: 120 µg/L | 2/8 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 4.95 pCi/L No EPA limit set
worst single sample: 5 pCi/L | 2/8 | SYR4 | 2012–2019 |
96 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, TotalBromateChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Olivenhain Mwd
Is Olivenhain Mwd tap water safe to drink?
EPA monitoring detected 17 contaminants in Olivenhain 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 Olivenhain Mwd's water?
EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Olivenhain Mwd serve?
Olivenhain Mwd reports serving 86,458 people in California, per its EPA record.
Has Olivenhain Mwd had any water quality violations?
The EPA has no formal drinking-water violations on file for Olivenhain Mwd.
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.