2,4,5-TP (Silvex)
South Elgin
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 | 8 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 4 | 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 |
---|---|---|
2014-01-21 | 4012952-02 | ND |
2014-01-21 | 4012952-03 | ND |
2014-01-21 | 4012952-04 | ND |
2014-01-21 | 4012952-06 | ND |
2014-04-08 | 4041938-01 | ND |
2014-04-08 | 4041938-02 | ND |
2014-04-08 | 4041938-03 | ND |
2014-04-08 | 4041949-01 | ND |
2015-05-12 | 5052232-02 | ND |
2015-09-08 | 5091704-07 | ND |
2017-02-14 | 7022694-01 | ND |
2017-04-18 | 7043245-01 | ND |
2017-04-18 | 7043245-02 | ND |
2017-06-13 | 7062957-01 | ND |
2018-05-15 | 8053403-02 | ND |
2018-09-18 | 8093852-07 | ND |