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 | Resolved | 2023-01-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2023-01-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2008-12-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-12-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-12-01 → 2008-12-31 |
| MR | Monitoring | Resolved | 2008-02-01 → 2008-02-29 |
| MR | Monitoring | Resolved | 2008-02-01 → 2008-02-29 |
| MR | Monitoring | Resolved | 2008-02-01 → 2008-02-29 |
| MR | Monitoring | Resolved | 2008-01-01 → 2008-12-31 |
| MR | Monitoring | Resolved | 2008-01-01 → 2008-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 8.535 µg/L 85% of the EPA limit 10 µg/L
worst single sample: 8.7 µg/L | 34/34 | SYR4 | 2012–2019 |
| Nitrate | 8660 µg/L 87% of the EPA limit 10000 µg/L
worst single sample: 9100 µg/L | 32/32 | SYR4 | 2012–2019 |
| Barium | 5.505 µg/L 0.3% of the EPA limit 2000 µg/L
worst single sample: 5.7 µg/L | 4/4 | SYR4 | 2015–2018 |
| Fluoride | 1625 µg/L 41% of the EPA limit 4000 µg/L
worst single sample: 1700 µg/L | 4/4 | SYR4 | 2015–2018 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 4/4 | LCR | 2025 |
| Bromodichloromethane | 7.2 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
| Bromoform | 2.9 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
| Chloroform | 3.8 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
| Dibromochloromethane | 8 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
| Dichloroacetic Acid | 2.3 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
| TTHM | 22 µg/L 28% of the EPA limit 80 µg/L | 1/1 | SYR4 | 2019 |
| Total Haloacetic Acids (HAA5) | 3.7 µg/L 6.2% of the EPA limit 60 µg/L | 1/1 | SYR4 | 2019 |
| Trichloroacetic Acid | 1.4 µg/L No EPA limit set | 1/1 | SYR4 | 2019 |
41 contaminants tested, none detected
Utility contact
Frequently asked questions about Md 05 Mountain Ranches
Is Md 05 Mountain Ranches tap water safe to drink?
EPA monitoring detected 13 contaminants in Md 05 Mountain Ranches'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 Md 05 Mountain Ranches's water?
EPA monitoring detected Arsenic, Nitrate, Barium, Fluoride, Lead, and others. The full list with the level and data source for each is above.
How many people does Md 05 Mountain Ranches serve?
Md 05 Mountain Ranches reports serving 239 people in California, per its EPA record.
Has Md 05 Mountain Ranches had any water quality violations?
The EPA has 17 violations on file for Md 05 Mountain Ranches, of which 5 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.