What was found in ZIP 83814
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1971 µg/L 20% of the EPA limit 10000 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 2/2 | SYR4 |
| Nitrate | 1930 µg/L 19% of the EPA limit 10000 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 2/2 | SYR4 |
| Barium | 61.4 µg/L 3.1% of the EPA limit 2000 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Arsenic | 22.98 µg/L 230% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 4.903 µg/L 16% of the EPA limit 30 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.86 pCi/L 77% of the EPA limit 5 pCi/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.73 pCi/L 25% of the EPA limit 15 pCi/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Trichloroethylene | 1.088 µg/L 22% of the EPA limit 5 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| TTHM | 0.8575 µg/L 1.1% of the EPA limit 80 µg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: COEUR D ALENE CITY OF · 54,115 people · 2025
Highest in the ZIP: 0.0040 mg/L — COUGAR BAY WATER ASSOCIATION · 230 people · 2024 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 83814
| Supplier | State | Population served |
|---|---|---|
| COEUR D ALENE CITY OF | ID | 54,115 |
| COUGAR BAY WATER ASSOCIATION | ID | 230 |
Frequently asked questions about ZIP 83814 tap water
Is the tap water in ZIP 83814 safe to drink?
EPA testing detected 10 contaminants across the water suppliers serving ZIP 83814. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 83814?
2 public water suppliers report EPA drinking-water monitoring for ZIP 83814. Each is listed above with its population served.
What contaminants are in ZIP 83814's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Barium, Arsenic, Combined Uranium, and others across this ZIP's suppliers. The full list with levels and sources is above.