What was found in Riverton's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 2700 µg/L 68% of the EPA limit 4000 µg/L | 12/12 | SYR4 |
| Nitrate-Nitrite | 1070 µg/L 11% of the EPA limit 10000 µg/L | 7/12 | SYR4 |
| Nitrate | 910 µg/L 9.1% of the EPA limit 10000 µg/L | 2/12 | SYR4 |
| Copper | 840 µg/L 65% of the EPA limit 1300 µg/L | 11/12 | SYR4 |
| Barium | 200 µg/L 10% of the EPA limit 2000 µg/L | 4/12 | SYR4 |
| Chromium | 100 µg/L 100% of the EPA limit 100 µg/L | 1/12 | SYR4 |
| TTHM | 44 µg/L 55% of the EPA limit 80 µg/L | 4/12 | SYR4 |
| Chloroform | 40 µg/L No EPA limit set | 3/12 | SYR4 |
| Cyanide | 31 µg/L 16% of the EPA limit 200 µg/L | 1/12 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30 µg/L 50% of the EPA limit 60 µg/L | 4/12 | SYR4 |
| Trichloroacetic Acid | 19 µg/L No EPA limit set | 1/12 | SYR4 |
| Arsenic | 17 µg/L 170% of the EPA limit, in the worst sample — 10 µg/L | 2/12 | SYR4 |
| Combined Uranium | 14.5 µg/L 48% of the EPA limit 30 µg/L | 4/12 | SYR4 |
| Dichloroacetic Acid | 13 µg/L No EPA limit set | 2/12 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.3 pCi/L 69% of the EPA limit 15 pCi/L | 11/12 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L | 1/12 | SYR4 |
| Lead | 9 µg/L 60% of the EPA limit 15 µg/L | 7/12 | SYR4 |
| Selenium | 9 µg/L 18% of the EPA limit 50 µg/L | 3/12 | SYR4 |
| Bromodichloromethane | 7.1 µg/L No EPA limit set | 4/12 | SYR4 |
| Dichloromethane | 6.8 µg/L 136% of the EPA limit, in the worst sample — 5 µg/L | 2/12 | SYR4 |
| Dibromochloromethane | 6 µg/L No EPA limit set | 4/12 | SYR4 |
| Combined Radium (-226 And -228) | 5.2 pCi/L 104% of the EPA limit, in the worst sample — 5 pCi/L | 7/12 | SYR4 |
| Bromoform | 4.9 µg/L No EPA limit set | 4/12 | SYR4 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set | 4/12 | SYR4 |
| Antimony, Total | 1 µg/L 17% of the EPA limit 6 µg/L | 1/12 | SYR4 |
| Monochloroacetic Acid | 0.8500 µg/L No EPA limit set | 1/12 | SYR4 |
| Asbestos | 0.2000 MFL 2.9% of the EPA limit 7 MFL | 2/12 | SYR4 |
| Lead | 0.0110 mg/L 73% of the EPA limit 0.0150 mg/L | 12/12 | LCR |
Water suppliers serving Riverton
| Supplier | Population served |
|---|---|
| RIVERTON, CITY OF | 10,330 |
| GARDENS NORTH HOMEOWNERS ASSOCIATION | 300 |
| SUNRIDGE ESTATES | 220 |
| B&K MOBILE HOME PARK | 200 |
| JADE MHC | 200 |
| MOUNTAIN VIEW ACRES | 165 |
| FIRST FIKE SUBDIVISION | 150 |
| A & J MOBILE HOME PARK | 100 |
| RAINTREE ESTATES | 100 |
| FARVIEW WATER AND SEWER DISTRICT | 60 |
| JEFFREY CITY WATER & SEWER DISTRICT | 40 |
| SECOND FIKE SUBDIVISION | 34 |
Frequently asked questions about Riverton tap water
Is Riverton tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Riverton. 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 Riverton?
12 public water suppliers report drinking-water monitoring for Riverton, Wyoming to the EPA. Each is listed above with its population served.
What contaminants are in Riverton's water?
The contaminants EPA monitoring detected in Riverton include Fluoride, Nitrate-Nitrite, Nitrate, Copper, Barium. The full list, with the highest level found 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.