What was found in Shishmaref's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 897.5 µg/L 69% of the EPA limit 1300 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2017 | 1/1 | SYR4 |
| TTHM | 210 µg/L 263% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Chloroform | 150 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 46 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 39.8 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.235 µg/L 47% of the EPA limit 60 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Bromoform | 25.945 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Lead | 19.915 µg/L 133% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2017 | 1/1 | SYR4 |
| Barium | 19 µg/L 1% of the EPA limit 2000 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 14.43 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 7.5395 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 7.455 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1.67 µg/L 17% of the EPA limit 10 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2012 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.146 µg/L No EPA limit set Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.4000 µg/L 20% of the EPA limit 2 µg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2019 | 1/1 | SYR4 |
| Lead | 0.00027 mg/L 1.8% of the EPA limit 0.0150 mg/L Main supplier: SHISHMAREF WATER SYSTEM · 572 people · 2023 | 1/1 | LCR |
Water suppliers serving Shishmaref
| Supplier | Population served |
|---|---|
| SHISHMAREF WATER SYSTEM | 572 |
Frequently asked questions about Shishmaref tap water
Is Shishmaref tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Shishmaref. 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 Shishmaref?
1 public water supplier report drinking-water monitoring for Shishmaref, Alaska to the EPA. Each is listed above with its population served.
What contaminants are in Shishmaref's water?
The contaminants EPA monitoring detected in Shishmaref include Copper, TTHM, Chloroform, Bromodichloromethane, Dibromochloromethane. The full list, with the level at the main supplier 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.