2,4,5-TP (Silvex)
New Windsor Consolidated WD
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.
30
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 9 | 0 | ND |
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 |
|---|---|---|
| 2014-03-31 | 03311402(SOCS) | ND |
| 2014-03-31 | 03311401(SOCS) | ND |
| 2014-04-08 | 04081404(SOCS) | ND |
| 2014-05-14 | 05141420(SOCS) | ND |
| 2015-04-23 | 04231508(SOCS) | ND |
| 2015-04-23 | 04231509(SOCS) | ND |
| 2015-04-23 | 04231510(SOCS) | ND |
| 2015-07-29 | 07291513(SOCS) | ND |
| 2016-01-20 | 02171606(SOCS) | ND |
| 2016-01-20 | 01201606(SOCS) | ND |
| 2016-01-27 | 01271608(SOCS) | ND |
| 2016-03-02 | 03021622-03(SOCS | ND |
| 2016-04-21 | 04211602(SOCS) | ND |
| 2017-08-02 | 08021720C-3(SOCS | ND |
| 2017-08-02 | 08021720A-4(SOCS | ND |
| 2017-08-02 | 08021702B-3(SOCS | ND |
| 2018-04-25 | 04251810SOC | ND |
| 2018-04-25 | 04251811SOCS | ND |
| 2018-04-25 | 04251809SOCS | ND |
| 2018-12-04 | 12041806B-SOC | ND |
| 2018-12-10 | 12101809E-SOC | ND |
| 2019-01-08 | 01081916B-SOC | ND |
| 2019-01-08 | 01091908B-SOC | ND |
| 2019-01-08 | 01081916C-SOC | ND |
| 2019-04-17 | 04171904A-SOC | ND |
| 2019-04-17 | 04171904C-SOC | ND |
| 2019-04-17 | 04171904B-SOC | ND |
| 2019-12-03 | 1203902-2SOC | ND |
| 2019-12-03 | 12031903SOC | ND |
| 2019-12-09 | 12091905SOC | ND |