What was found in Riverton's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2395 µg/L 24% of the EPA limit 10000 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2390.06 µg/L 24% of the EPA limit 10000 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Fluoride | 781.52 µg/L 20% of the EPA limit 4000 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Copper | 196.3 µg/L 15% of the EPA limit 1300 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Barium | 70.925 µg/L 3.5% of the EPA limit 2000 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| TTHM | 59.935 µg/L 75% of the EPA limit 80 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Chloroform | 44 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Lithium | 42 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2025 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 34.95 µg/L 58% of the EPA limit 60 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 20.08 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 19.28 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 13.06 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Bromoform | 8 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.22 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Chromium | 5.9 µg/L 5.9% of the EPA limit 100 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 5.735 pCi/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Selenium | 4.6 µg/L 9.2% of the EPA limit 50 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Lead | 4.595 µg/L 31% of the EPA limit 15 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.07 pCi/L 27% of the EPA limit 15 pCi/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.2 µg/L No EPA limit set Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Cyanide | 3.2 µg/L 1.6% of the EPA limit 200 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2.9 µg/L 29% of the EPA limit 10 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Beryllium, Total | 2 µg/L 50% of the EPA limit 4 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.2750 µg/L 14% of the EPA limit 2 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Cadmium | 0.2000 µg/L 4% of the EPA limit 5 µg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0033 mg/L 22% of the EPA limit 0.0150 mg/L Main supplier: TAYLORSVILLE-BENNION ID · 67,098 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Riverton
| Supplier | Population served |
|---|---|
| TAYLORSVILLE-BENNION ID | 67,098 |
Frequently asked questions about Riverton tap water
Is Riverton tap water safe to drink?
EPA testing detected 26 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?
1 public water supplier report drinking-water monitoring for Riverton, Utah 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 Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. The full list, with the level at the main supplier 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.