What was found in ZIP 99114
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 | 810 µg/L 8.1% of the EPA limit 10000 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 790 µg/L 7.9% of the EPA limit 10000 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2017 | 2/2 | SYR4 |
| Fluoride | 287.5 µg/L 7.2% of the EPA limit 4000 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2017 | 2/2 | SYR4 |
| Barium | 119.5 µg/L 6% of the EPA limit 2000 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2017
Highest in the ZIP: 213 µg/L — STEVENS CO PUD - VALLEY · 550 people · 2019 | 2/2 | SYR4 |
| TTHM | 7.52 µg/L 9.4% of the EPA limit 80 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 2.806 µg/L No EPA limit set Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Chloroform | 2.6045 µg/L No EPA limit set Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 2.453 µg/L No EPA limit set Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 1.4485 µg/L No EPA limit set Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.4485 µg/L 2.4% of the EPA limit 60 µg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2018 | 1/2 | SYR4 |
| Bromoform | 1.215 µg/L No EPA limit set Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.11 µg/L 11% of the EPA limit 10 µg/L Highest in the ZIP: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L Main supplier: COLVILLE WATER DEPARTMENT · 4,945 people · 2023 | 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 99114
| Supplier | State | Population served |
|---|---|---|
| COLVILLE WATER DEPARTMENT | WA | 4,945 |
| STEVENS CO PUD - VALLEY | WA | 550 |
Frequently asked questions about ZIP 99114 tap water
Is the tap water in ZIP 99114 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 99114. 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 99114?
2 public water suppliers report EPA drinking-water monitoring for ZIP 99114. Each is listed above with its population served.
What contaminants are in ZIP 99114's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.