Compliance record
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 |
|---|---|---|---|---|
| Trichloroethylene | 20.03 µg/L 401% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 63.2 µg/L | 2238/7209 | SYR4 | 2012–2019 |
| Bromoform | 7.5 µg/L No EPA limit set
worst single sample: 35.4 µg/L | 1823/6622 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 4.2 µg/L 60% of the EPA limit 7 µg/L
worst single sample: 12.6 µg/L | 1607/7209 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.9 µg/L No EPA limit set
worst single sample: 19 µg/L | 1481/6879 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 17.54 µg/L 351% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 43.4 µg/L | 894/7208 | SYR4 | 2012–2019 |
| Chloroform | 2.8 µg/L No EPA limit set
worst single sample: 18 µg/L | 773/6756 | SYR4 | 2012–2019 |
| Nitrate | 6329.13 µg/L 63% of the EPA limit 10000 µg/L
worst single sample: 7400 µg/L | 640/652 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 2.575 µg/L 3.7% of the EPA limit 70 µg/L
worst single sample: 6.4 µg/L | 526/7209 | SYR4 | 2012–2019 |
| TTHM | 33.715 µg/L 42% of the EPA limit 80 µg/L
worst single sample: 55 µg/L | 400/1071 | SYR4 | 2012–2019 |
| Bromodichloromethane | 7.235 µg/L No EPA limit set
worst single sample: 16 µg/L | 252/6895 | SYR4 | 2012–2019 |
| Combined Uranium | 41.869 µg/L 140% of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 47.68 µg/L | 139/180 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.5 µg/L No EPA limit set
worst single sample: 5.4 µg/L | 119/192 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 14.5 µg/L 24% of the EPA limit 60 µg/L
worst single sample: 20 µg/L | 86/192 | SYR4 | 2012–2019 |
| Fluoride | 360 µg/L 9% of the EPA limit 4000 µg/L
worst single sample: 390 µg/L | 52/52 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 7.05 µg/L No EPA limit set
worst single sample: 9.8 µg/L | 51/192 | SYR4 | 2012–2019 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L | 36/36 | LCR | 2025 |
| Trichloroacetic Acid | 4.9 µg/L No EPA limit set
worst single sample: 5.9 µg/L | 34/192 | SYR4 | 2012–2019 |
| Barium | 90.12 µg/L 4.5% of the EPA limit 2000 µg/L
worst single sample: 117 µg/L | 29/29 | SYR4 | 2012–2018 |
| Arsenic | 1.3 µg/L 13% of the EPA limit 10 µg/L
worst single sample: 1.4 µg/L | 22/29 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 502000 µg/L 5020% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 570000 µg/L | 18/19 | SYR4 | 2015–2018 |
| Toluene | 3.04 µg/L 0.3% of the EPA limit 1000 µg/L
worst single sample: 3.4 µg/L | 13/7132 | SYR4 | 2012–2019 |
| Selenium | 12.42 µg/L 25% of the EPA limit 50 µg/L
worst single sample: 16.9 µg/L | 8/30 | SYR4 | 2012–2018 |
| Monochloroacetic Acid | 13.8 µg/L No EPA limit set
worst single sample: 15 µg/L | 7/192 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 6/7209 | SYR4 | 2012–2019 |
| Chromium | 2.95 µg/L 3% of the EPA limit 100 µg/L
worst single sample: 3.1 µg/L | 6/30 | SYR4 | 2012–2018 |
| Lithium | 34.8 µg/L No EPA limit set | 6/8 | UCMR-5 | 2024 |
| Copper | 45.58 µg/L 3.5% of the EPA limit 1300 µg/L
worst single sample: 49 µg/L | 4/29 | SYR4 | 2012–2018 |
| Monobromoacetic Acid | 2.44 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 4/192 | SYR4 | 2012–2019 |
| Lead | 1.485 µg/L 9.9% of the EPA limit 15 µg/L
worst single sample: 1.5 µg/L | 2/29 | SYR4 | 2012–2018 |
| Cadmium | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/29 | SYR4 | 2012–2018 |
| Gross Beta Particle Activity | 4.6 pCi/L No EPA limit set | 1/4 | SYR4 | 2013–2017 |
73 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Santa Monica-City, Water Division
Is Santa Monica-City, Water Division tap water safe to drink?
EPA monitoring detected 37 contaminants in Santa Monica-City, Water Division'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 Santa Monica-City, Water Division's water?
EPA monitoring detected Trichloroethylene, Bromoform, 1,1-Dichloroethylene, Dibromochloromethane, Tetrachloroethylene, and others. The full list with the level and data source for each is above.
How many people does Santa Monica-City, Water Division serve?
Santa Monica-City, Water Division reports serving 89,947 people in California, per its EPA record.
Has Santa Monica-City, Water Division had any water quality violations?
The EPA has no formal drinking-water violations on file for Santa Monica-City, Water Division.
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.