2,4,5-TP (Silvex)
Charlotte Water
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 15 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 15 | 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 |
---|---|---|
2015-06-25 | ND | |
2015-06-25 | ND | |
2015-06-25 | ND | |
2015-06-25 | ND | |
2015-06-25 | ND | |
2015-08-17 | ND | |
2015-08-17 | ND | |
2015-08-17 | ND | |
2015-08-17 | ND | |
2015-08-17 | ND | |
2015-11-17 | ND | |
2015-11-17 | ND | |
2015-11-17 | ND | |
2015-11-17 | ND | |
2015-11-17 | ND | |
2017-02-09 | 92329527005SOC | ND |
2017-02-09 | 92329527004SOC | ND |
2017-02-09 | 92329527003SOC | ND |
2017-02-09 | 92329527002SOC | ND |
2017-02-09 | 92329527001SOC | ND |
2017-05-10 | 92340277001SOC | ND |
2017-05-10 | 92340277005SOC | ND |
2017-05-10 | 92340277004SOC | ND |
2017-05-10 | 92340277003SOC | ND |
2017-05-10 | 92340277002SOC | ND |
2017-07-05 | 92346756001SOC | ND |
2017-07-05 | 92346756002SOC | ND |
2017-07-05 | 92346756003SOC | ND |
2017-07-05 | 92346756004SOC | ND |
2017-07-05 | 92346756005SOC | ND |