What was found in ZIP 59270
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 | 5020 µg/L 50% of the EPA limit 10000 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Copper | 230.1 µg/L 18% of the EPA limit 1300 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2017 | 1/1 | SYR4 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2017 | 1/1 | SYR4 |
| Lithium | 37.7 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2025 | 1/1 | UCMR-5 |
| Lead | 33.2 µg/L 221% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2017 | 1/1 | SYR4 |
| TTHM | 24.8 µg/L 31% of the EPA limit 80 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 9.94 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 7.46 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 5.8 µg/L 19% of the EPA limit 30 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2017 | 1/1 | SYR4 |
| Bromoform | 3.95 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 3.82 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.31 µg/L 5.5% of the EPA limit 60 µg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.365 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.0835 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 0.7440 µg/L No EPA limit set Main supplier: SIDNEY CITY OF · 5,000 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0040 mg/L 27% of the EPA limit 0.0150 mg/L Main supplier: SIDNEY CITY OF · 5,000 people · 2023 | 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 59270
| Supplier | State | Population served |
|---|---|---|
| SIDNEY CITY OF | MT | 5,000 |
Frequently asked questions about ZIP 59270 tap water
Is the tap water in ZIP 59270 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 59270. 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 59270?
1 public water supplier report EPA drinking-water monitoring for ZIP 59270. Each is listed above with its population served.
What contaminants are in ZIP 59270's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Fluoride, Lithium, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.