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 | 2020-10-01 → 2020-10-31 |
| MCL | Health-based | Archived | 2005-12-01 → 2005-12-31 |
| MCL | Health-based | Archived | 2004-12-01 → 2004-12-31 |
| MCL | Health-based | Archived | 1998-11-01 → 1998-11-30 |
| MCL | Health-based | Archived | 1998-11-01 → 1998-11-30 |
| MCL | Health-based | Archived | 1998-11-01 → 1998-11-30 |
| MCL | Health-based | Archived | 1998-04-01 → 1998-04-30 |
| MCL | Health-based | Archived | 1998-04-01 → 1998-04-30 |
| MCL | Health-based | Archived | 1998-04-01 → 1998-04-30 |
| MCL | Health-based | Archived | 1992-10-01 → 1992-10-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 1450 µg/L 14% of the EPA limit 10000 µg/L | 34/36 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2025 |
| Arsenic | 4 µg/L 40% of the EPA limit 10 µg/L | 3/3 | SYR4 | 2012–2015 |
| Nitrate-Nitrite | 1030 µg/L 10% of the EPA limit 10000 µg/L | 3/3 | SYR4 | 2012–2015 |
| Chromium | 8 µg/L 8% of the EPA limit 100 µg/L | 2/3 | SYR4 | 2012–2015 |
| Lead | 2 µg/L 13% of the EPA limit 15 µg/L | 2/3 | SYR4 | 2012–2015 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about Indian Hills Estates
Is Indian Hills Estates tap water safe to drink?
EPA monitoring detected 6 contaminants in Indian Hills Estates'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 Indian Hills Estates's water?
EPA monitoring detected Nitrate, Lead, Arsenic, Nitrate-Nitrite, Chromium, and others. The full list with the level and data source for each is above.
How many people does Indian Hills Estates serve?
Indian Hills Estates reports serving 282 people in Washington, per its EPA record.
Has Indian Hills Estates had any water quality violations?
The EPA has 66 violations on file for Indian Hills Estates, of which 14 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.