Tetrachloroethylene in Treasure Valley drinking water
4 of 125 systems that tested for it in the last 36 months detected it; 2 are above the limit, elevated, or an aesthetic issue. Tetrachloroethylene is an organic chemical. Certified filters are in the list.
| System | County | 36 mo max | Latest | Status | Last sample |
|---|---|---|---|---|---|
| Paradise Estates Water Corp. | Ada | 6.1ppb | ND | Above limit | 2026-06-25 |
| Veolia Water Idaho | Ada | 2.5ppb | ND | Elevated | 2026-07-28 |
| Garden City Water and Sewer System | Ada | 0.7ppb | ND | Detected | 2026-05-18 |
| Meridian Water Department | Ada | 0.5ppb | ND | Detected | 2026-06-02 |
Limits
- Federal limit (MCL)
- 5 ug/L (5.0ppb)
- Health goal (MCLG)
- 0.0ppb
Some people who drink water containing tetrachloroethylene in excess of the MCL over many years could have problems with their liver, and may have an increased risk of getting cancer.EPA, quoted.
Removal methods in the reference list: granular activated carbon, aeration. A method name is not a product certification.
By city: Tetrachloroethylene in Boise City drinking water, Tetrachloroethylene in Garden City drinking water, Tetrachloroethylene in Meridian drinking water.
Not enough groundwater samples in the region to estimate Tetrachloroethylene in private wells. A lab test is the only way to know.
Numbers are the system's samples at its taps and wells, not yours. Lead and copper are 90th percentiles from sampled homes. Well pages are nearby-sample estimates. Health text restates EPA and DEQ. Methodology.