What was found in Wasilla's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 16900 µg/L 169% of the EPA limit, in the worst sample — 10000 µg/L | 32/46 | SYR4 |
| Nitrate | 8350 µg/L 84% of the EPA limit 10000 µg/L | 7/46 | SYR4 |
| Copper | 4340 µg/L 334% of the EPA limit, in the worst sample — 1300 µg/L | 40/46 | SYR4 |
| Lead | 500 µg/L 3333% of the EPA limit, in the worst sample — 15 µg/L | 38/46 | SYR4 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L | 7/46 | SYR4 |
| Nitrite | 200 µg/L 20% of the EPA limit 1000 µg/L | 1/46 | SYR4 |
| Total Haloacetic Acids (HAA5) | 126 µg/L 210% of the EPA limit, in the worst sample — 60 µg/L | 7/46 | SYR4 |
| TTHM | 90.1 µg/L 113% of the EPA limit, in the worst sample — 80 µg/L | 7/46 | SYR4 |
| Trichloroacetic Acid | 78 µg/L No EPA limit set | 5/46 | SYR4 |
| Chloroform | 76 µg/L No EPA limit set | 7/46 | SYR4 |
| Barium | 66 µg/L 3.3% of the EPA limit 2000 µg/L | 37/46 | SYR4 |
| Dichloroacetic Acid | 62.1 µg/L No EPA limit set | 7/46 | SYR4 |
| Arsenic | 37.9 µg/L 379% of the EPA limit, in the worst sample — 10 µg/L | 20/46 | SYR4 |
| Bromodichloromethane | 13 µg/L No EPA limit set | 7/46 | SYR4 |
| Cyanide | 13 µg/L 6.5% of the EPA limit 200 µg/L | 2/46 | SYR4 |
| Xylenes, Total | 6.72 µg/L 0.1% of the EPA limit 10000 µg/L | 2/46 | SYR4 |
| Gross Beta Particle Activity | 6.6 pCi/L No EPA limit set | 1/46 | SYR4 |
| Monochloroacetic Acid | 6.3 µg/L No EPA limit set | 3/46 | SYR4 |
| Dibromochloromethane | 5.65 µg/L No EPA limit set | 6/46 | SYR4 |
| Bromoform | 3.61 µg/L No EPA limit set | 3/46 | SYR4 |
| Chromium | 2.15 µg/L 2.2% of the EPA limit 100 µg/L | 4/46 | SYR4 |
| Antimony, Total | 1.91 µg/L 32% of the EPA limit 6 µg/L | 2/46 | SYR4 |
| Dibromoacetic Acid | 1.8 µg/L No EPA limit set | 4/46 | SYR4 |
| Dichloromethane | 1.3 µg/L 26% of the EPA limit 5 µg/L | 3/46 | SYR4 |
| Combined Radium (-226 And -228) | 1.1 pCi/L 22% of the EPA limit 5 pCi/L | 5/46 | SYR4 |
| Ethylbenzene | 0.8800 µg/L 0.1% of the EPA limit 700 µg/L | 1/46 | SYR4 |
| Toluene | 0.8600 µg/L 0.1% of the EPA limit 1000 µg/L | 2/46 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/46 | SYR4 |
| Combined Uranium | 0.1600 µg/L 0.5% of the EPA limit 30 µg/L | 3/46 | SYR4 |
| Cadmium | 0.1510 µg/L 3% of the EPA limit 5 µg/L | 1/46 | SYR4 |
| Lead | 0.0095 mg/L 63% of the EPA limit 0.0150 mg/L | 46/46 | LCR |
| PFHXS | 0.0042 µg/L No EPA limit set | 1/46 | UCMR-5 |
Water suppliers serving Wasilla
Frequently asked questions about Wasilla tap water
Is Wasilla tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Wasilla. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Wasilla?
46 public water suppliers report drinking-water monitoring for Wasilla, Alaska to the EPA. Each is listed above with its population served.
What contaminants are in Wasilla's water?
The contaminants EPA monitoring detected in Wasilla include Nitrate-Nitrite, Nitrate, Copper, Lead, Fluoride. The full list, with the highest level found and the data source, is in the table above.
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.