What was found in Pocatello'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 | 11930 µg/L 119% of the EPA limit, in the worst sample — 10000 µg/L | 13/13 | SYR4 |
| Nitrate-Nitrite | 8650 µg/L 87% of the EPA limit 10000 µg/L | 11/13 | SYR4 |
| Fluoride | 3500 µg/L 88% of the EPA limit 4000 µg/L | 13/13 | SYR4 |
| Barium | 313 µg/L 16% of the EPA limit 2000 µg/L | 13/13 | SYR4 |
| Nitrite | 260 µg/L 26% of the EPA limit 1000 µg/L | 4/13 | SYR4 |
| Copper | 180 µg/L 14% of the EPA limit 1300 µg/L | 1/13 | SYR4 |
| Lithium | 42.3 µg/L No EPA limit set | 1/13 | UCMR-5 |
| TTHM | 23.9 µg/L 30% of the EPA limit 80 µg/L | 2/13 | SYR4 |
| Total Haloacetic Acids (HAA5) | 16 µg/L 27% of the EPA limit 60 µg/L | 1/13 | SYR4 |
| Arsenic | 14 µg/L 140% of the EPA limit, in the worst sample — 10 µg/L | 12/13 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12.2 pCi/L 81% of the EPA limit 15 pCi/L | 9/13 | SYR4 |
| Chromium | 11 µg/L 11% of the EPA limit 100 µg/L | 8/13 | SYR4 |
| Bromoform | 10.2 µg/L No EPA limit set | 1/13 | SYR4 |
| Selenium | 10 µg/L 20% of the EPA limit 50 µg/L | 11/13 | SYR4 |
| Combined Uranium | 5.95 µg/L 20% of the EPA limit 30 µg/L | 13/13 | SYR4 |
| Trichloroethylene | 5.16 µg/L 103% of the EPA limit, in the worst sample — 5 µg/L | 1/13 | SYR4 |
| Lead | 5 µg/L 33% of the EPA limit 15 µg/L | 1/13 | SYR4 |
| Combined Radium (-226 And -228) | 4.947 pCi/L 99% of the EPA limit 5 pCi/L | 9/13 | SYR4 |
| Gross Beta Particle Activity | 4.64 pCi/L No EPA limit set | 1/13 | SYR4 |
| Dibromoacetic Acid | 3.93 µg/L No EPA limit set | 1/13 | SYR4 |
| Dibromochloromethane | 3.3 µg/L No EPA limit set | 1/13 | SYR4 |
| Dichloromethane | 1 µg/L 20% of the EPA limit 5 µg/L | 1/13 | SYR4 |
| Tetrachloroethylene | 0.9600 µg/L 19% of the EPA limit 5 µg/L | 1/13 | SYR4 |
| Bromodichloromethane | 0.5600 µg/L No EPA limit set | 1/13 | SYR4 |
| Ethylene Dibromide | 0.0300 µg/L 60% of the EPA limit 0.0500 µg/L | 1/13 | SYR4 |
| Lead | 0.0130 mg/L 87% of the EPA limit 0.0150 mg/L | 13/13 | LCR |
Water suppliers serving Pocatello
| Supplier | Population served |
|---|---|
| POCATELLO CITY OF | 58,231 |
| BIG SKY N. SUBDIVISION | 300 |
| TYHEE AND S AND N ESTATES WATER ASSN | 300 |
| CARIBOU ACRES | 150 |
| D AND M WATER ASSN | 142 |
| WHITEWATER SUBD | 106 |
| EQUESTRIAN ESTATES | 88 |
| TWIN PINES MOBILE PARK | 86 |
| WILDHORSE RIDGE SUBD | 85 |
| VALLEY VIEW ESTATES | 74 |
| SMITH ROAD WATER USERS ASSN | 58 |
| SPACE ACRES WATER USERS ASSN | 29 |
| MINK CREEK MOUNTAIN ESTATES | 27 |
Frequently asked questions about Pocatello tap water
Is Pocatello tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Pocatello. 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 Pocatello?
13 public water suppliers report drinking-water monitoring for Pocatello, Idaho to the EPA. Each is listed above with its population served.
What contaminants are in Pocatello's water?
The contaminants EPA monitoring detected in Pocatello include Nitrate, Nitrate-Nitrite, Fluoride, Barium, Nitrite. 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.