What was found in ZIP 59701
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 |
|---|---|---|---|
| Copper | 686.5 µg/L 53% of the EPA limit 1300 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2018 | 1/1 | SYR4 |
| Fluoride | 124.15 µg/L 3.1% of the EPA limit 4000 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2017 | 1/1 | SYR4 |
| Nitrate-Nitrite | 100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 55 µg/L 92% of the EPA limit 60 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| TTHM | 43.6 µg/L 55% of the EPA limit 80 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 40 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 32 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 22 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Lead | 7.978 µg/L 53% of the EPA limit 15 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 3.895 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.2 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2012 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.4 pCi/L 9.3% of the EPA limit 15 pCi/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2017 | 1/1 | SYR4 |
| Tetrachloroethylene | 0.7500 µg/L 15% of the EPA limit 5 µg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 0.4660 µg/L No EPA limit set Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: BUTTE SILVERBOW WATER DEPT · 33,000 people · 2024 | 1/1 | 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 59701
| Supplier | State | Population served |
|---|---|---|
| BUTTE SILVERBOW WATER DEPT | MT | 33,000 |
Frequently asked questions about ZIP 59701 tap water
Is the tap water in ZIP 59701 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 59701. 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 59701?
1 public water supplier report EPA drinking-water monitoring for ZIP 59701. Each is listed above with its population served.
What contaminants are in ZIP 59701's water?
EPA monitoring detected Copper, Fluoride, Nitrate-Nitrite, Total Haloacetic Acids (HAA5), TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.