2,4,5-TP (Silvex)
Reynolds Plantation
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.
25
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 12 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 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 |
|---|---|---|
| 2016-02-09 | AJ06237 | ND |
| 2016-02-09 | AJ06235 | ND |
| 2016-02-09 | AJ06233 | ND |
| 2016-05-17 | AJ12533 | ND |
| 2016-05-17 | AJ12528 | ND |
| 2016-05-17 | AJ12515 | ND |
| 2016-07-12 | AJ17556 | ND |
| 2016-07-12 | AJ17554 | ND |
| 2016-07-12 | AJ17537 | ND |
| 2016-10-04 | AJ30623 | ND |
| 2016-10-04 | AJ30611 | ND |
| 2016-10-04 | AJ30609 | ND |
| 2017-01-10 | AJ37957 | ND |
| 2017-04-04 | AJ52718 | ND |
| 2017-07-11 | AJ59990 | ND |
| 2017-10-10 | AJ71120 | ND |
| 2018-01-09 | AJ76515 | ND |
| 2018-01-09 | AJ76512 | ND |
| 2018-01-09 | AJ76508 | ND |
| 2018-05-21 | AJ90136 | ND |
| 2018-05-21 | AJ90134 | ND |
| 2018-07-16 | AJ94706 | ND |
| 2018-07-16 | AJ94690 | ND |
| 2018-10-15 | AK04243 | ND |
| 2018-10-15 | AK04251 | ND |