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 | 2006-08-01 → 2006-08-31 |
| MCL | Health-based | Archived | 2003-07-01 → 2003-07-31 |
| MR | Monitoring | Archived | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Archived | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2008-01-01 → 2008-03-31 |
| MR | Monitoring | Archived | 2002-09-01 → 2002-09-30 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
| MR | Monitoring | Resolved | 2002-01-01 → 2002-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 22.98 µg/L 230% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 28.8 µg/L | 265/278 | SYR4 | 2012–2019 |
| Nitrate | 1930 µg/L 19% of the EPA limit 10000 µg/L
worst single sample: 2460 µg/L | 212/248 | SYR4 | 2012–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2025 |
| Combined Radium (-226 And -228) | 3.86 pCi/L 77% of the EPA limit 5 pCi/L
worst single sample: 4.7 pCi/L | 13/16 | SYR4 | 2015–2019 |
| Combined Uranium | 4.903 µg/L 16% of the EPA limit 30 µg/L
worst single sample: 5.86 µg/L | 12/16 | SYR4 | 2013–2019 |
| Gross Alpha, Excl. Radon And U | 3.73 pCi/L 25% of the EPA limit 15 pCi/L
worst single sample: 4 pCi/L | 10/15 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 1971 µg/L 20% of the EPA limit 10000 µg/L
worst single sample: 2070 µg/L | 10/11 | SYR4 | 2019 |
| Barium | 61.4 µg/L 3.1% of the EPA limit 2000 µg/L
worst single sample: 68 µg/L | 7/12 | SYR4 | 2016–2019 |
| TTHM | 0.8575 µg/L 1.1% of the EPA limit 80 µg/L
worst single sample: 0.9100 µg/L | 4/17 | SYR4 | 2012–2019 |
| Trichloroethylene | 1.088 µg/L 22% of the EPA limit 5 µg/L
worst single sample: 1.12 µg/L | 2/26 | SYR4 | 2012–2019 |
90 contaminants tested, none detected
Utility contact
Frequently asked questions about Coeur D Alene City of
Is Coeur D Alene City of tap water safe to drink?
EPA monitoring detected 10 contaminants in Coeur D Alene 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 Coeur D Alene City of's water?
EPA monitoring detected Arsenic, Nitrate, Lead, Combined Radium (-226 And -228), Combined Uranium, and others. The full list with the level and data source for each is above.
How many people does Coeur D Alene City of serve?
Coeur D Alene City of reports serving 54,115 people in Idaho, per its EPA record.
Has Coeur D Alene City of had any water quality violations?
The EPA has 89 violations on file for Coeur D Alene City of, of which 2 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.