2,4,5-TP (Silvex)
Linville-haile Water System
2(2,4,5-trichlorophenoxy) propionic acid (2,4,5-TP or Silvex) is a cancer-causing herbicide banned in the U.S. in 1985 because of its toxicity. It is still detected as a groundwater contaminant in areas where it was sprayed or stored.
12
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 6 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 3 ppb
The EWG Health Guideline of 3 ppb for 2,4,5-TP was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL): 50 ppb
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-07 | 35378987001 | ND |
| 2018-03-07 | 35378987002 | ND |
| 2018-03-07 | 35378987003 | ND |
| 2018-03-07 | 35378987001 | ND |
| 2018-03-07 | 35378987002 | ND |
| 2018-03-07 | 35378987003 | ND |
| 2021-03-16 | 35619734003 | ND |
| 2021-03-16 | 35619734004 | ND |
| 2021-03-16 | 35619734005 | ND |
| 2023-11-13 | 35841740001 | ND |
| 2023-11-13 | 35841740002 | ND |
| 2023-11-13 | 35841740003 | ND |