2,4,5-TP (Silvex)
Greenville Utilities Comm.
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 | ND | 14 | 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 |
|---|---|---|
| 2014-01-23 | 777406S | ND |
| 2014-01-23 | 777401S | ND |
| 2014-01-23 | 777405S | ND |
| 2014-01-23 | 777404S | ND |
| 2014-01-23 | 777403S | ND |
| 2014-01-23 | 777402S | ND |
| 2014-01-23 | 777407S | ND |
| 2014-06-26 | 788730S | ND |
| 2014-06-26 | 788729S | ND |
| 2014-06-26 | 788731S | ND |
| 2014-06-26 | 788732S | ND |
| 2014-06-26 | 788733S | ND |
| 2014-06-26 | 788734S | ND |
| 2014-06-26 | 788735S | ND |
| 2017-01-26 | 30199-07 | ND |
| 2017-01-26 | 30199-05 | ND |
| 2017-01-26 | 30199-01 | ND |
| 2017-01-26 | 30199-06 | ND |
| 2017-01-26 | 30199-04 | ND |
| 2017-04-06 | 33148-04 | ND |
| 2017-04-06 | 33148-07 | ND |
| 2017-04-06 | 33148-06 | ND |
| 2017-04-06 | 33148-05 | ND |
| 2017-04-06 | 33148-01 | ND |