2,4,5-TP (Silvex)
Fayetteville Public Works Commission
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.
22
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-01-07 | 92185765001 | ND |
| 2014-01-07 | 92185762001 | ND |
| 2014-08-04 | 37729_14-23093 | ND |
| 2014-08-04 | 37729_14-23094 | ND |
| 2015-01-05 | ND | |
| 2015-01-05 | ND | |
| 2015-08-03 | ND | |
| 2015-08-03 | ND | |
| 2016-01-04 | 37729_16-00241 | ND |
| 2016-01-04 | 37729_16-00246 | ND |
| 2016-11-07 | 37729_16-38807 | ND |
| 2016-11-07 | 37729_16-38804 | ND |
| 2017-01-09 | 37729_17-00980 | ND |
| 2017-01-09 | 37729_17-00935 | ND |
| 2017-08-07 | 37729_17-27939 | ND |
| 2017-08-07 | 37729_17-27940 | ND |
| 2018-01-08 | 37729_18-00801 | ND |
| 2018-01-08 | 37729_18-00802 | ND |
| 2018-08-27 | 37729_18-35904 | ND |
| 2018-08-27 | 37729_18-35905 | ND |
| 2019-01-07 | 37729_19-01100 | ND |
| 2019-01-07 | 37729_19-01110 | ND |