What was found in Herriman'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 |
|---|---|---|---|
| Nitrate | 4910 µg/L 49% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 1000 µg/L 10% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| Copper | 704.9 µg/L 54% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Fluoride | 674.6 µg/L 17% of the EPA limit 4000 µg/L | 3/3 | SYR4 |
| Barium | 267 µg/L 13% of the EPA limit 2000 µg/L | 3/3 | SYR4 |
| TTHM | 92.7 µg/L 116% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Chloroform | 69.7 µg/L No EPA limit set | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 65.2 µg/L 109% of the EPA limit, in the worst sample — 60 µg/L | 3/3 | SYR4 |
| Bromoform | 33.1 µg/L No EPA limit set | 3/3 | SYR4 |
| Lithium | 33 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Dichloroacetic Acid | 31 µg/L No EPA limit set | 3/3 | SYR4 |
| Trichloroacetic Acid | 30.4 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Beta Particle Activity | 25 pCi/L No EPA limit set | 3/3 | SYR4 |
| Lead | 22 µg/L 147% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Dibromoacetic Acid | 17.9 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromodichloromethane | 17 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 16 pCi/L 107% of the EPA limit, in the worst sample — 15 pCi/L | 2/3 | SYR4 |
| Dibromochloromethane | 12.7 µg/L No EPA limit set | 3/3 | SYR4 |
| Selenium | 9.7 µg/L 19% of the EPA limit 50 µg/L | 3/3 | SYR4 |
| Arsenic | 7.7 µg/L 77% of the EPA limit 10 µg/L | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.76 µg/L No EPA limit set | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 2.4 pCi/L 48% of the EPA limit 5 pCi/L | 2/3 | SYR4 |
| Cyanide | 2 µg/L 1% of the EPA limit 200 µg/L | 1/3 | SYR4 |
| Xylenes, Total | 2 µg/L 0% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.78 µg/L No EPA limit set | 1/3 | SYR4 |
| Pentachlorophenol | 0.1520 µg/L 15% of the EPA limit 1 µg/L | 1/3 | SYR4 |
| Pfhxa | 0.0085 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Lead | 0.0038 mg/L 25% of the EPA limit 0.0150 mg/L | 3/3 | LCR |
| Pfpea | 0.0035 µg/L No EPA limit set | 1/3 | UCMR-5 |
Water suppliers serving Herriman
| Supplier | Population served |
|---|---|
| HERRIMAN CITY MUNICIPAL WATER DEPARTMENT | 60,000 |
| HI-COUNTRY NUMBER 2 | 722 |
| HI-COUNTRY ESTATES #1 | 373 |
Frequently asked questions about Herriman tap water
Is Herriman tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Herriman. 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 Herriman?
3 public water suppliers report drinking-water monitoring for Herriman, Utah to the EPA. Each is listed above with its population served.
What contaminants are in Herriman's water?
The contaminants EPA monitoring detected in Herriman include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.