What was found in Rigby'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 | 1570 µg/L 16% of the EPA limit 10000 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019
Highest in the city: 2480 µg/L — PEPPERWOOD CROSSING/ROCKY MNT UTILITIES · 336 people · 2019 | 9/10 | SYR4 |
| Nitrate-Nitrite | 1180 µg/L 12% of the EPA limit 10000 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019
Highest in the city: 1820 µg/L — JENCO ACRES · 105 people · 2019 | 6/10 | SYR4 |
| Fluoride | 391 µg/L 9.8% of the EPA limit 4000 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019
Highest in the city: 600 µg/L — JENCO ACRES · 105 people · 2019 | 9/10 | SYR4 |
| Barium | 68.8 µg/L 3.4% of the EPA limit 2000 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019
Highest in the city: 85 µg/L — JENCO ACRES · 105 people · 2019 | 9/10 | SYR4 |
| Lithium | 40 µg/L No EPA limit set Main supplier: RIGBY CITY OF · 5,400 people · 2025 | 1/10 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 0.9400 pCi/L 6.3% of the EPA limit 15 pCi/L Main supplier: RIGBY CITY OF · 5,400 people · 2019
Highest in the city: 9.1 pCi/L — JENCO ACRES · 105 people · 2016 | 3/10 | SYR4 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019 | 4/10 | SYR4 |
| Arsenic | 3 µg/L 30% of the EPA limit 10 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019 | 7/10 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.06 µg/L 34% of the EPA limit 6 µg/L Highest in the city: PARKWOOD ACRES WATER COMPANY · 88 people · 2019 | 1/10 | SYR4 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L Highest in the city: HILLMAN TRAILER COURT · 45 people · 2019 | 4/10 | SYR4 |
| Combined Radium (-226 And -228) | 1.447 pCi/L 29% of the EPA limit 5 pCi/L Main supplier: RIGBY CITY OF · 5,400 people · 2012
Highest in the city: 1.8 pCi/L — PARKWOOD ACRES WATER COMPANY · 88 people · 2016 | 4/10 | SYR4 |
| Combined Uranium | 0.9820 µg/L 3.3% of the EPA limit 30 µg/L Main supplier: RIGBY CITY OF · 5,400 people · 2019 | 1/10 | SYR4 |
| Toluene | 0.9300 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: JENCO ACRES · 105 people · 2019 | 1/10 | SYR4 |
| Lead | 0.0080 mg/L 53% of the EPA limit 0.0150 mg/L Main supplier: RIGBY CITY OF · 5,400 people · 2025 | 10/10 | LCR |
Water suppliers serving Rigby
| Supplier | Population served |
|---|---|
| RIGBY CITY OF | 5,400 |
| COUNTRY SQUIRE ESTATES | 450 |
| PEPPERWOOD CROSSING/ROCKY MNT UTILITIES | 336 |
| SUNBROOK ESTATES DIV # 2 | 144 |
| JENCO ACRES | 105 |
| ELK MEADOWS | 100 |
| PARKWOOD ACRES WATER COMPANY | 88 |
| IRELAND ACRES 1 | 54 |
| HILLMAN TRAILER COURT | 45 |
| COUNTRY LIVING CENTER | 30 |
Frequently asked questions about Rigby tap water
Is Rigby tap water safe to drink?
EPA testing detected 14 contaminants in the water serving Rigby. 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 Rigby?
10 public water suppliers report drinking-water monitoring for Rigby, Idaho to the EPA. Each is listed above with its population served.
What contaminants are in Rigby's water?
The contaminants EPA monitoring detected in Rigby include Nitrate, Nitrate-Nitrite, Fluoride, Barium, Lithium. 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.