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 |
|---|---|---|---|
| Other | Monitoring | Resolved | 2009-06-02 → 2013-10-23 |
| MR | Monitoring | Resolved | 1993-07-01 → 2000-03-01 |
| Other | Monitoring | Archived | 1984-09-01 → 1984-09-30 |
| Other | Monitoring | Archived | 1984-08-01 → 1984-08-31 |
| Other | Monitoring | Archived | 1984-07-01 → 1984-07-31 |
| Other | Monitoring | Archived | 1983-01-01 → 1983-01-31 |
| Other | Monitoring | Archived | 1982-11-01 → 1982-11-30 |
| MR | Monitoring | Archived | 1981-10-01 → 1982-09-30 |
| MR | Monitoring | Archived | 1980-10-30 → 1981-10-29 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2025 |
| Nitrate | 2000 µg/L 20% of the EPA limit 10000 µg/L | 20/32 | SYR4 | 2012–2019 |
| Arsenic | 4.1 µg/L 41% of the EPA limit 10 µg/L | 5/6 | SYR4 | 2013–2019 |
| Fluoride | 210 µg/L 5.3% of the EPA limit 4000 µg/L | 4/6 | SYR4 | 2013–2019 |
| Bromodichloromethane | 2.6 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| Chloroform | 2.8 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 5.2 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| Dibromochloromethane | 2.5 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 1.6 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 3.2 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
| TTHM | 7.9 µg/L 9.9% of the EPA limit 80 µg/L | 1/3 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 11 µg/L 18% of the EPA limit 60 µg/L | 1/3 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 1 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2019 |
62 contaminants tested, none detected
Utility contact
Frequently asked questions about Yulupa Mutual Water Company
Is Yulupa Mutual Water Company tap water safe to drink?
EPA monitoring detected 13 contaminants in Yulupa Mutual Water Company'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 Yulupa Mutual Water Company's water?
EPA monitoring detected Lead, Nitrate, Arsenic, Fluoride, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Yulupa Mutual Water Company serve?
Yulupa Mutual Water Company reports serving 200 people in California, per its EPA record.
Has Yulupa Mutual Water Company had any water quality violations?
The EPA has 9 violations on file for Yulupa Mutual Water Company, of which 0 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.