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 | 2014-11-01 → 2014-11-30 |
| MCL | Health-based | Archived | 2014-11-01 → 2014-11-30 |
| MCL | Health-based | Archived | 2013-09-01 → 2013-09-30 |
| MCL | Health-based | Archived | 2013-09-01 → 2013-09-30 |
| MCL | Health-based | Archived | 2005-11-01 → 2005-11-30 |
| MCL | Health-based | Archived | 2004-11-01 → 2004-11-30 |
| MCL | Health-based | Archived | 2003-10-01 → 2003-10-31 |
| MCL | Health-based | Archived | 2003-09-01 → 2003-09-30 |
| MCL | Health-based | Archived | 1999-09-01 → 1999-09-30 |
| MCL | Health-based | Archived | 1998-09-01 → 1998-09-30 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0030 µg/L | 1/8 | 2023 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5017.5 µg/L 50% of the EPA limit 10000 µg/L
worst single sample: 5510 µg/L | 62/62 | SYR4 | 2012–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2023 |
| Combined Uranium | 2.3585 µg/L 7.9% of the EPA limit 30 µg/L
worst single sample: 2.43 µg/L | 12/12 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 0.9518 pCi/L 19% of the EPA limit 5 pCi/L
worst single sample: 1 pCi/L | 10/11 | SYR4 | 2013–2019 |
| Gross Alpha, Excl. Radon And U | 5.731 pCi/L 38% of the EPA limit 15 pCi/L
worst single sample: 6.06 pCi/L | 8/8 | SYR4 | 2014–2019 |
| Lithium | 74.5 µg/L No EPA limit set | 8/8 | UCMR-5 | 2023 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L | 6/6 | SYR4 | 2013–2018 |
| Barium | 153.25 µg/L 7.7% of the EPA limit 2000 µg/L
worst single sample: 161 µg/L | 6/6 | SYR4 | 2013–2018 |
| Fluoride | 675 µg/L 17% of the EPA limit 4000 µg/L
worst single sample: 700 µg/L | 6/6 | SYR4 | 2013–2018 |
| Chromium | 7.95 µg/L 8% of the EPA limit 100 µg/L
worst single sample: 9 µg/L | 4/6 | SYR4 | 2013–2018 |
| Nitrate-Nitrite | 4166 µg/L 42% of the EPA limit 10000 µg/L
worst single sample: 4310 µg/L | 4/4 | SYR4 | 2013–2018 |
| Toluene | 0.7490 µg/L 0.1% of the EPA limit 1000 µg/L
worst single sample: 0.7600 µg/L | 2/12 | SYR4 | 2014–2019 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L | 1/6 | SYR4 | 2013–2018 |
88 contaminants tested, none detected
Utility contact
Frequently asked questions about Shelley City of
Is Shelley City of tap water safe to drink?
EPA monitoring detected 14 contaminants in Shelley City of'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 Shelley City of's water?
EPA monitoring detected Nitrate, Lead, Combined Uranium, Combined Radium (-226 And -228), 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 Shelley City of serve?
Shelley City of reports serving 4,409 people in Idaho, per its EPA record.
Has Shelley City of had any water quality violations?
The EPA has 33 violations on file for Shelley City of, of which 16 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.