What was found in ZIP 82901
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 | 740 µg/L 57% of the EPA limit 1300 µg/L Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| TTHM | 52.95 µg/L 66% of the EPA limit 80 µg/L Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 43.25 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.95 µg/L 53% of the EPA limit 60 µg/L Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 20.45 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 16.9 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 10.34 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Lead | 10.25 µg/L 68% of the EPA limit 15 µg/L Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.2 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.9 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.05 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 0.8340 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.7500 µg/L No EPA limit set Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: ROCK SPRINGS, CITY OF · 24,000 people · 2025 | 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 82901
| Supplier | State | Population served |
|---|---|---|
| ROCK SPRINGS, CITY OF | WY | 24,000 |
Frequently asked questions about ZIP 82901 tap water
Is the tap water in ZIP 82901 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 82901. 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 82901?
1 public water supplier report EPA drinking-water monitoring for ZIP 82901. Each is listed above with its population served.
What contaminants are in ZIP 82901's water?
EPA monitoring detected Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.