2,4,5-TP (Silvex)
Carolina Beach Water System
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.
36
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 | ND | 18 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 18 | 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 |
|---|---|---|
| 2016-04-14 | 37729_16-11679 | ND |
| 2016-04-14 | 37729_16-11680 | ND |
| 2016-04-14 | 37729_16-11681 | ND |
| 2016-04-14 | 37729_16-11683 | ND |
| 2016-04-14 | 37729_16-11684 | ND |
| 2016-04-14 | 37729_16-11685 | ND |
| 2016-04-14 | 37729_16-11686 | ND |
| 2016-04-14 | 37729_16-11682 | ND |
| 2016-04-14 | 37729_16-11674 | ND |
| 2016-11-17 | 37729_16-40124 | ND |
| 2016-11-17 | 37729_16-40128 | ND |
| 2016-11-17 | 37729_16-40127 | ND |
| 2016-11-17 | 37729_16-40126 | ND |
| 2016-11-17 | 37729_16-40125 | ND |
| 2016-11-17 | 37729_16-40123 | ND |
| 2016-11-17 | 37729_16-40122 | ND |
| 2016-11-17 | 37729_16-40121 | ND |
| 2016-11-17 | 37729_16-40120 | ND |
| 2019-09-23 | 37729_19-41137 | ND |
| 2019-09-23 | 37729_19-41136 | ND |
| 2019-09-23 | 37729_19-41135 | ND |
| 2019-09-23 | 37729_19-41134 | ND |
| 2019-09-23 | 37729_19-41133 | ND |
| 2019-09-23 | 37729_19-41132 | ND |
| 2019-09-23 | 37729_19-41131 | ND |
| 2019-09-23 | 37729_19-41130 | ND |
| 2019-09-23 | 37729_19-41123 | ND |
| 2019-12-02 | 37729_19-51274 | ND |
| 2019-12-02 | 37729_19-51270 | ND |
| 2019-12-02 | 37729_19-51268 | ND |
| 2019-12-02 | 37729_19-51267 | ND |
| 2019-12-02 | 37729_19-51266 | ND |
| 2019-12-02 | 37729_19-51262 | ND |
| 2019-12-02 | 37729_19-51261 | ND |
| 2019-12-02 | 37729_19-51250 | ND |
| 2019-12-02 | 37729_19-51249 | ND |