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 | 1999-03-01 → 1999-03-31 |
| MCL | Health-based | Archived | 1999-03-01 → 1999-03-31 |
| MCL | Health-based | Archived | 1999-03-01 → 1999-03-31 |
| MCL | Health-based | Archived | 1991-06-05 → 1991-07-04 |
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| RPT | Monitoring | Resolved | 2024-10-17 |
| RPT | Monitoring | Resolved | 2024-10-17 |
| RPT | Monitoring | Resolved | 2024-10-17 |
| RPT | Monitoring | Resolved | 2024-10-01 |
| RPT | Monitoring | Resolved | 2024-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0033 mg/L 22% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2024 |
| Copper | 176 µg/L 14% of the EPA limit 1300 µg/L | 17/17 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 50 µg/L 0.5% of the EPA limit 10000 µg/L | 8/16 | SYR4 | 2012–2019 |
| Lead | 10 µg/L 67% of the EPA limit 15 µg/L | 6/17 | SYR4 | 2012–2018 |
| Barium | 15.7 µg/L 0.8% of the EPA limit 2000 µg/L | 3/3 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 3.2 pCi/L 64% of the EPA limit 5 pCi/L | 3/3 | SYR4 | 2012–2018 |
| Fluoride | 360 µg/L 9% of the EPA limit 4000 µg/L | 3/3 | SYR4 | 2012–2018 |
| Chloroform | 1.62 µg/L No EPA limit set | 2/6 | SYR4 | 2012–2018 |
| Chromium | 5.75 µg/L 5.8% of the EPA limit 100 µg/L | 2/3 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 2.45 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2018 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about North Hills Estates
Is North Hills Estates tap water safe to drink?
EPA monitoring detected 10 contaminants in North 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 North Hills Estates's water?
EPA monitoring detected Lead, Copper, Nitrate-Nitrite, Lead, Barium, and others. The full list with the level and data source for each is above.
How many people does North Hills Estates serve?
North Hills Estates reports serving 150 people in Missouri, per its EPA record.
Has North Hills Estates had any water quality violations?
The EPA has 26 violations on file for North Hills Estates, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.