2,4,5-TP (Silvex)
City of Soledad
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.
17
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 | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 11 | 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 |
|---|---|---|
| 2014-09-09 | 5810-013-0955 | ND |
| 2016-03-08 | 5810-006-0952 | ND |
| 2016-03-08 | 5810-007-0900 | ND |
| 2016-03-08 | 5810-014-1040 | ND |
| 2016-03-08 | 5810-013-1105 | ND |
| 2017-03-21 | 5810-008-0910 | ND |
| 2018-05-31 | 5810-006-1012 | ND |
| 2018-05-31 | 5810-014-1020 | ND |
| 2018-05-31 | 5810-013-1015 | ND |
| 2018-05-31 | 5810-011-0845 | ND |
| 2018-05-31 | 5810-008-0845 | ND |
| 2018-05-31 | 5810-007-0945 | ND |
| 2018-07-24 | 5810-008-0835 | ND |
| 2018-07-24 | 5810-013-1021 | ND |
| 2018-07-24 | 5810-007-0908 | ND |
| 2018-07-24 | 5810-014-0953 | ND |
| 2018-07-24 | 5810-006-0930 | ND |