2,4,5-TP (Silvex)
Hobbs Municipal Water Supply
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 | ND | 10 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 5 | 0 | ND |
2018 | ND | 2 | 0 | ND |
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 |
---|---|---|
2014-03-19 | 1403916-005A | ND |
2014-03-19 | 1403921-005A | ND |
2014-03-19 | 1403920-004A | ND |
2014-03-19 | 1403919-004A | ND |
2014-03-19 | 1403917-005A | ND |
2014-06-03 | 1406267-001A | ND |
2014-06-03 | 1406269-001A | ND |
2014-06-03 | 1406266-001A | ND |
2014-06-03 | 1406268-001A | ND |
2014-12-02 | 1412283-002A | ND |
2017-05-16 | 1705984-005 | ND |
2017-10-16 | 2017030182 | ND |
2017-10-16 | 2017030183 | ND |
2017-10-16 | 2017030177 | ND |
2017-10-16 | 2017030176 | ND |
2018-02-13 | 2018004607 | ND |
2018-04-24 | 2018011515 | ND |