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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-03-31 |
| MR | Monitoring | Resolved | 2015-10-01 → 2015-12-31 |
| MR | Monitoring | Resolved | 2015-10-01 → 2015-12-31 |
| MR | Monitoring | Resolved | 2015-10-01 → 2015-12-31 |
| MR | Monitoring | Resolved | 2015-07-01 → 2015-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 230 µg/L 18% of the EPA limit 1300 µg/L | 12/15 | SYR4 | 2014–2017 |
| Nitrate-Nitrite | 1650 µg/L 17% of the EPA limit 10000 µg/L | 6/6 | SYR4 | 2014–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 5/5 | LCR | 2023 |
| Combined Uranium | 1 µg/L 3.3% of the EPA limit 30 µg/L | 3/4 | SYR4 | 2015–2016 |
| Gross Alpha, Excl. Radon And U | 3.6 pCi/L 24% of the EPA limit 15 pCi/L | 3/4 | SYR4 | 2015–2016 |
| Barium | 430 µg/L 22% of the EPA limit 2000 µg/L | 2/2 | SYR4 | 2015–2017 |
| Combined Radium (-226 And -228) | 1 pCi/L 20% of the EPA limit 5 pCi/L | 2/3 | SYR4 | 2015–2016 |
| Fluoride | 110 µg/L 2.8% of the EPA limit 4000 µg/L | 2/2 | SYR4 | 2015–2017 |
| Lead | 4 µg/L 27% of the EPA limit 15 µg/L | 2/15 | SYR4 | 2014–2017 |
| Nitrate | 990 µg/L 9.9% of the EPA limit 10000 µg/L | 2/2 | SYR4 | 2017 |
58 contaminants tested, none detected
Utility contact
Frequently asked questions about Riverwalk and Dinos Estates
Is Riverwalk and Dinos Estates tap water safe to drink?
EPA monitoring detected 10 contaminants in Riverwalk and Dinos 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 Riverwalk and Dinos Estates's water?
EPA monitoring detected Copper, Nitrate-Nitrite, Lead, Combined Uranium, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.
How many people does Riverwalk and Dinos Estates serve?
Riverwalk and Dinos Estates reports serving 115 people in Montana, per its EPA record.
Has Riverwalk and Dinos Estates had any water quality violations?
The EPA has 246 violations on file for Riverwalk and Dinos Estates, 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.