Compliance record
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 206 µg/L 16% of the EPA limit 1300 µg/L | 15/15 | SYR4 | 2016–2019 |
| Lead | 5 µg/L 33% of the EPA limit 15 µg/L | 15/15 | SYR4 | 2016–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 3/3 | LCR | 2025 |
| TTHM | 14.7 µg/L 18% of the EPA limit 80 µg/L | 3/3 | SYR4 | 2016–2019 |
| Nitrate | 4150 µg/L 42% of the EPA limit 10000 µg/L | 2/2 | SYR4 | 2019 |
| Barium | 184 µg/L 9.2% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2019 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2019 |
| Gross Alpha, Excl. Radon And U | 6.53 pCi/L 44% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2019 |
13 contaminants tested, none detected
Utility contact
Frequently asked questions about Norris Peak Water Users Assoc
Is Norris Peak Water Users Assoc tap water safe to drink?
EPA monitoring detected 8 contaminants in Norris Peak Water Users 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 Norris Peak Water Users Assoc's water?
EPA monitoring detected Copper, Lead, Lead, TTHM, Nitrate, and others. The full list with the level and data source for each is above.
How many people does Norris Peak Water Users Assoc serve?
Norris Peak Water Users Assoc reports serving 30 people in South Dakota, per its EPA record.
Has Norris Peak Water Users Assoc had any water quality violations?
The EPA has no formal drinking-water violations on file for Norris Peak Water Users Assoc.
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.