2,4,5-TP (Silvex)
Whitehall Twp Authority
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.
20
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 |
|---|---|---|---|---|
| 2014 | ND | 10 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 10 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-05-06 | 14030839-01 | ND |
| 2014-05-06 | 14030841-01 | ND |
| 2014-05-06 | 14030845-01 | ND |
| 2014-05-06 | 14030847-01 | ND |
| 2014-06-03 | 14052225-01 | ND |
| 2014-08-12 | 14030842-01 | ND |
| 2014-08-12 | 14030844-01 | ND |
| 2014-08-12 | 14030846-01 | ND |
| 2014-08-12 | 14030848-01 | ND |
| 2014-08-12 | 14030840-01 | ND |
| 2017-05-02 | 16145216 | ND |
| 2017-05-02 | 16145188 | ND |
| 2017-05-02 | 16145160 | ND |
| 2017-05-02 | 16145132 | ND |
| 2017-05-02 | 16145104 | ND |
| 2017-08-01 | 16615172 | ND |
| 2017-08-01 | 16615142 | ND |
| 2017-08-01 | 16615202 | ND |
| 2017-08-01 | 16615232 | ND |
| 2017-08-01 | 16615112 | ND |