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 |
|---|---|---|---|
| TT | Health-based | Unaddressed | 2025-10-31 |
| TT | Health-based | Unaddressed | 2025-10-31 |
| TT | Health-based | Unaddressed | 2025-10-31 |
| TT | Health-based | Resolved | 2017-10-25 |
| TT | Health-based | Resolved | 2017-10-25 |
| MCL | Health-based | Resolved | 2013-09-01 → 2013-09-30 |
| MCL | Health-based | Resolved | 2013-09-01 → 2013-09-30 |
| MCL | Health-based | Resolved | 2013-09-01 → 2013-09-30 |
| MCL | Health-based | Resolved | 2010-12-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-12-01 → 2010-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 230 µg/L 18% of the EPA limit 1300 µg/L | 15/15 | SYR4 | 2013–2019 |
| Lead | 2 µg/L 13% of the EPA limit 15 µg/L | 15/15 | SYR4 | 2013–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Nitrate | 281 µg/L 2.8% of the EPA limit 10000 µg/L | 12/12 | SYR4 | 2017–2019 |
| Barium | 613 µg/L 31% of the EPA limit 2000 µg/L | 2/2 | SYR4 | 2013 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L | 2/2 | SYR4 | 2013 |
| Gross Alpha, Excl. Radon And U | 2.4 pCi/L 16% of the EPA limit 15 pCi/L | 2/2 | SYR4 | 2016 |
| TTHM | 4.68 µg/L 5.9% of the EPA limit 80 µg/L | 2/3 | SYR4 | 2013–2019 |
13 contaminants tested, none detected
Utility contact
Frequently asked questions about Mountain Plains 2 Homeowners Assoc
Is Mountain Plains 2 Homeowners Assoc tap water safe to drink?
EPA monitoring detected 8 contaminants in Mountain Plains 2 Homeowners Assoc'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 Mountain Plains 2 Homeowners Assoc's water?
EPA monitoring detected Copper, Lead, Lead, Nitrate, Barium, and others. The full list with the level and data source for each is above.
How many people does Mountain Plains 2 Homeowners Assoc serve?
Mountain Plains 2 Homeowners Assoc reports serving 268 people in South Dakota, per its EPA record.
Has Mountain Plains 2 Homeowners Assoc had any water quality violations?
The EPA has 182 violations on file for Mountain Plains 2 Homeowners Assoc, of which 32 are health-based (a contaminant limit or required treatment was breached) and 7 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.