2,4,5-TP (Silvex)
Goodhue County Coop Electric
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.
24
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 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 18 | 0 | ND |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2018-05-15 | 18E1232-02 | ND |
| 2018-05-15 | 18E1232-03 | ND |
| 2018-05-15 | 18E1232-04 | ND |
| 2018-05-15 | 18E1236-01 | ND |
| 2018-05-15 | 18E1236-02 | ND |
| 2018-05-15 | 18E1232-01 | ND |
| 2018-08-07 | 18H0514-01 | ND |
| 2018-08-07 | 18H0514-02 | ND |
| 2018-08-07 | 18H0517-01 | ND |
| 2018-08-07 | 18H0517-02 | ND |
| 2018-08-07 | 18H0517-03 | ND |
| 2018-08-07 | 18H0517-04 | ND |
| 2018-10-31 | 18J1579-01 | ND |
| 2018-10-31 | 18J1582-02 | ND |
| 2018-10-31 | 18J1582-01 | ND |
| 2018-10-31 | 18J1579-04 | ND |
| 2018-10-31 | 18J1579-03 | ND |
| 2018-10-31 | 18J1579-02 | ND |
| 2019-03-25 | 19C1063-02 | ND |
| 2019-03-25 | 19C1063-03 | ND |
| 2019-03-25 | 19C1063-04 | ND |
| 2019-03-25 | 19C1064-01 | ND |
| 2019-03-25 | 19C1064-02 | ND |
| 2019-03-25 | 19C1064-03 | ND |