What was found in ZIP 59725
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 | 2330 µg/L 23% of the EPA limit 10000 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Copper | 764.8 µg/L 59% of the EPA limit 1300 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2018 | 1/1 | SYR4 |
| Fluoride | 560 µg/L 14% of the EPA limit 4000 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Lithium | 21 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2024 | 1/1 | UCMR-5 |
| TTHM | 15.7 µg/L 20% of the EPA limit 80 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.35 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.5 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.24 pCi/L 35% of the EPA limit 15 pCi/L Main supplier: DILLON CITY OF · 4,300 people · 2014 | 1/1 | SYR4 |
| Combined Uranium | 5 µg/L 17% of the EPA limit 30 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2014 | 1/1 | SYR4 |
| Selenium | 4.5 µg/L 9% of the EPA limit 50 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.515 µg/L 5.9% of the EPA limit 60 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 3.28 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Lead | 3.05 µg/L 20% of the EPA limit 15 µg/L Main supplier: DILLON CITY OF · 4,300 people · 2018 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.965 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Chloroform | 0.9090 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.8900 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: DILLON CITY OF · 4,300 people · 2014 | 1/1 | SYR4 |
| Monobromoacetic Acid | 0.8000 µg/L No EPA limit set Main supplier: DILLON CITY OF · 4,300 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: DILLON CITY OF · 4,300 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 59725
| Supplier | State | Population served |
|---|---|---|
| DILLON CITY OF | MT | 4,300 |
Frequently asked questions about ZIP 59725 tap water
Is the tap water in ZIP 59725 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 59725. 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 59725?
1 public water supplier report EPA drinking-water monitoring for ZIP 59725. Each is listed above with its population served.
What contaminants are in ZIP 59725's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Fluoride, Lithium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.