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 | 2025-04-01 → 2025-06-30 |
| MCL | Health-based | Archived | 2025-01-01 → 2025-03-31 |
| MCL | Health-based | Archived | 2024-10-01 → 2024-12-31 |
| MCL | Health-based | Archived | 2024-07-01 → 2024-09-30 |
| MCL | Health-based | Archived | 2024-04-01 → 2024-06-30 |
| MCL | Health-based | Archived | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Archived | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Archived | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Archived | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Archived | 2023-10-01 → 2023-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 6000 µg/L 60% of the EPA limit 10000 µg/L
worst single sample: 6300 µg/L | 180/180 | SYR4 | 2012–2019 |
| Arsenic | 17 µg/L 170% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 21 µg/L | 107/107 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2024 |
| Fluoride | 723 µg/L 18% of the EPA limit 4000 µg/L
worst single sample: 750 µg/L | 7/7 | SYR4 | 2013–2019 |
| Combined Uranium | 14.8628 µg/L 50% of the EPA limit 30 µg/L
worst single sample: 16.39 µg/L | 6/6 | SYR4 | 2015–2019 |
| Nitrate-Nitrite | 5875 µg/L 59% of the EPA limit 10000 µg/L
worst single sample: 6000 µg/L | 6/6 | SYR4 | 2013–2019 |
| Bromoform | 3.44 µg/L No EPA limit set
worst single sample: 3.7 µg/L | 5/8 | SYR4 | 2014–2019 |
| TTHM | 3.56 µg/L 4.5% of the EPA limit 80 µg/L
worst single sample: 3.7 µg/L | 5/8 | SYR4 | 2014–2019 |
| Dibromochloromethane | 1.1 µg/L No EPA limit set | 1/8 | SYR4 | 2014–2019 |
72 contaminants tested, none detected
Utility contact
Frequently asked questions about Land Projects Mutual Water Co.
Is Land Projects Mutual Water Co. tap water safe to drink?
EPA monitoring detected 9 contaminants in Land Projects Mutual Water Co.'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 Land Projects Mutual Water Co.'s water?
EPA monitoring detected Nitrate, Arsenic, Lead, Fluoride, Combined Uranium, and others. The full list with the level and data source for each is above.
How many people does Land Projects Mutual Water Co. serve?
Land Projects Mutual Water Co. reports serving 2,800 people in California, per its EPA record.
Has Land Projects Mutual Water Co. had any water quality violations?
The EPA has 418 violations on file for Land Projects Mutual Water Co., of which 228 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.