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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2020-10-01 → 2020-12-31 |
| MCL | Health-based | Archived | 2020-10-01 → 2020-12-31 |
| MCL | Health-based | Archived | 2020-10-01 → 2020-12-31 |
| MCL | Health-based | Archived | 2020-04-01 → 2020-06-30 |
| MCL | Health-based | Archived | 2020-04-01 → 2020-06-30 |
| MCL | Health-based | Archived | 2020-04-01 → 2020-06-30 |
| MCL | Health-based | Archived | 2019-07-01 → 2019-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 27120 µg/L 271% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 42940 µg/L | 304/508 | SYR4 | 2012–2019 |
| Combined Uranium | 43.9624 µg/L 147% of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 59.451 µg/L | 10/10 | SYR4 | 2014–2019 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2025 |
| Arsenic | 9.7 µg/L 97% of the EPA limit 10 µg/L
worst single sample: 10 µg/L | 3/3 | SYR4 | 2014–2017 |
| Fluoride | 290 µg/L 7.2% of the EPA limit 4000 µg/L
worst single sample: 300 µg/L | 3/3 | SYR4 | 2014–2017 |
| Nitrate-Nitrite | 270550 µg/L 2706% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 300000 µg/L | 3/3 | SYR4 | 2014–2017 |
| Barium | 104 µg/L 5.2% of the EPA limit 2000 µg/L | 1/3 | SYR4 | 2014–2017 |
| Bromoform | 22.75 µg/L No EPA limit set | 1/3 | SYR4 | 2014–2017 |
| Cadmium | 2.2 µg/L 44% of the EPA limit 5 µg/L | 1/3 | SYR4 | 2014–2017 |
| Carbon Tetrachloride | 0.6900 µg/L 14% of the EPA limit 5 µg/L | 1/4 | SYR4 | 2013–2017 |
| Chromium | 6 µg/L 6% of the EPA limit 100 µg/L | 1/3 | SYR4 | 2014–2017 |
| Dibromoacetic Acid | 7.3 µg/L No EPA limit set | 1/2 | SYR4 | 2017 |
| Dibromochloromethane | 4.59 µg/L No EPA limit set | 1/3 | SYR4 | 2014–2017 |
| Nitrite | 200 µg/L 20% of the EPA limit 1000 µg/L | 1/4 | SYR4 | 2014–2017 |
| Selenium | 5.9 µg/L 12% of the EPA limit 50 µg/L | 1/3 | SYR4 | 2014–2017 |
| TTHM | 27.34 µg/L 34% of the EPA limit 80 µg/L | 1/3 | SYR4 | 2014–2017 |
| Total Haloacetic Acids (HAA5) | 7.3 µg/L 12% of the EPA limit 60 µg/L | 1/2 | SYR4 | 2017 |
62 contaminants tested, none detected
Utility contact
Frequently asked questions about San Lucas County Water District
Is San Lucas County Water District tap water safe to drink?
EPA monitoring detected 17 contaminants in San Lucas County 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 San Lucas County Water District's water?
EPA monitoring detected Nitrate, Combined Uranium, Lead, Arsenic, Fluoride, and others. The full list with the level and data source for each is above.
How many people does San Lucas County Water District serve?
San Lucas County Water District reports serving 315 people in California, per its EPA record.
Has San Lucas County Water District had any water quality violations?
The EPA has 69 violations on file for San Lucas County Water District, of which 41 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.