What was found in Coalville'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 | 1920 µg/L 19% of the EPA limit 10000 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 3525 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2019 | 4/4 | SYR4 |
| Copper | 673.42 µg/L 52% of the EPA limit 1300 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 4/4 | SYR4 |
| Barium | 184.32 µg/L 9.2% of the EPA limit 2000 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 605.655 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2019 | 4/4 | SYR4 |
| Fluoride | 472.76 µg/L 12% of the EPA limit 4000 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 4/4 | SYR4 |
| TTHM | 14.61 µg/L 18% of the EPA limit 80 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 21.69 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2017 | 3/4 | SYR4 |
| Gross Beta Particle Activity | 10.62 pCi/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 14.7 pCi/L — WANSHIP MUTUAL WATER CO · 325 people · 2019 | 4/4 | SYR4 |
| Bromoform | 2.3 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 11.91 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2019 | 4/4 | SYR4 |
| Lead | 3.86 µg/L 26% of the EPA limit 15 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 11.805 µg/L — CLUFF WARD PIPELINE CO · 188 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 3.12 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 8.74 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2019 | 3/4 | SYR4 |
| Cyanide | 8.7 µg/L 4.4% of the EPA limit 200 µg/L Highest in the city: WANSHIP MUTUAL WATER CO · 325 people · 2019 | 1/4 | SYR4 |
| Chloroform | 8.175 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7.4 µg/L 12% of the EPA limit 60 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 2/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.975 pCi/L 40% of the EPA limit 15 pCi/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 1.9 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019
Highest in the city: 5.61 µg/L — WANSHIP MUTUAL WATER CO · 325 people · 2017 | 2/4 | SYR4 |
| Bromodichloromethane | 4.22 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 3/4 | SYR4 |
| Arsenic | 3.98 µg/L 40% of the EPA limit 10 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 4/4 | SYR4 |
| Selenium | 3.6 µg/L 7.2% of the EPA limit 50 µg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 3.28 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 2/4 | SYR4 |
| Trichloroacetic Acid | 2.2 µg/L No EPA limit set Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.5000 pCi/L 10% of the EPA limit 5 pCi/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2012 | 1/4 | SYR4 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: COALVILLE CITY WATER SYSTEM · 1,590 people · 2022
Highest in the city: 0.0245 mg/L — CLUFF WARD PIPELINE CO · 188 people · 2025 | 4/4 | 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 Coalville
| Supplier | Population served |
|---|---|
| COALVILLE CITY WATER SYSTEM | 1,590 |
| HOYTSVILLE PIPE WATER CO | 440 |
| WANSHIP MUTUAL WATER CO | 325 |
| CLUFF WARD PIPELINE CO | 188 |
Frequently asked questions about Coalville tap water
Is Coalville tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Coalville. 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 Coalville?
4 public water suppliers report drinking-water monitoring for Coalville, Utah to the EPA. Each is listed above with its population served.
What contaminants are in Coalville's water?
The contaminants EPA monitoring detected in Coalville include Nitrate, Copper, Barium, Fluoride, TTHM. 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.