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 | 2009-05-01 → 2009-05-31 |
| MCL | Health-based | Resolved | 2009-05-01 → 2009-05-31 |
| MCL | Health-based | Resolved | 2006-09-01 → 2006-09-30 |
| MCL | Health-based | Resolved | 2006-09-01 → 2006-09-30 |
| MCL | Health-based | Resolved | 2006-09-01 → 2006-09-30 |
| MR | Monitoring | Resolved | 2004-07-01 → 2004-08-31 |
| MR | Monitoring | Resolved | 2004-07-01 → 2004-08-31 |
| MR | Monitoring | Resolved | 2004-07-01 → 2004-08-31 |
| MR | Monitoring | Resolved | 2004-07-01 → 2004-08-31 |
| MR | Monitoring | Resolved | 1993-07-01 → 2000-04-04 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4200 µg/L 42% of the EPA limit 10000 µg/L | 20/22 | SYR4 | 2012–2019 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L | 4/4 | LCR | 2024 |
| Arsenic | 2.875 µg/L 29% of the EPA limit 10 µg/L
worst single sample: 2.9 µg/L | 2/3 | SYR4 | 2012–2018 |
| Barium | 119 µg/L 5.9% of the EPA limit 2000 µg/L
worst single sample: 120 µg/L | 2/3 | SYR4 | 2012–2018 |
| Fluoride | 180 µg/L 4.5% of the EPA limit 4000 µg/L | 1/2 | SYR4 | 2015–2018 |
| Nitrate-Nitrite | 4200 µg/L 42% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2018 |
33 contaminants tested, none detected
Utility contact
Frequently asked questions about 4n Mobilehome Park
Is 4n Mobilehome Park tap water safe to drink?
EPA monitoring detected 6 contaminants in 4n Mobilehome Park'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 4n Mobilehome Park's water?
EPA monitoring detected Nitrate, Lead, Arsenic, Barium, Fluoride, and others. The full list with the level and data source for each is above.
How many people does 4n Mobilehome Park serve?
4n Mobilehome Park reports serving 65 people in California, per its EPA record.
Has 4n Mobilehome Park had any water quality violations?
The EPA has 12 violations on file for 4n Mobilehome Park, 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.