2,4,5-TP (Silvex)
Fort Rucker - American 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 | N/A | 0 | 0 | N/A |
2016 | ND | 14 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 19 | 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 |
---|---|---|
2016-01-21 | 160121041-2 | ND |
2016-01-21 | 160121041-7 | ND |
2016-01-21 | 160121041-6 | ND |
2016-01-21 | 160121041-4 | ND |
2016-01-21 | 160121041-3 | ND |
2016-01-21 | 160121041-1 | ND |
2016-01-21 | 160121041-5 | ND |
2016-04-21 | 160421053-3 | ND |
2016-04-21 | 160421053-2 | ND |
2016-04-21 | 160421053-5 | ND |
2016-04-21 | 160421053-1 | ND |
2016-04-21 | 160421053-4 | ND |
2016-04-21 | 160421053-7 | ND |
2016-04-21 | 160421053-6 | ND |
2019-01-29 | 19010699-004C | ND |
2019-01-29 | 19010699-001C | ND |
2019-01-29 | 19010699-003C | ND |
2019-01-29 | 2019-19010699-00 | ND |
2019-01-29 | 2019-19010699-00 | ND |
2019-01-29 | 2019-19010699-00 | ND |
2019-01-29 | 2019-19010699-00 | ND |
2019-01-29 | 2019-19010699-00 | ND |
2019-01-29 | 19010699-002C | ND |
2019-01-29 | 19010699-005C | ND |
2019-05-28 | 20105785006_ISOC | ND |
2019-05-28 | 20105785002_ISOC | ND |
2019-05-28 | 20105785003_ISOC | ND |
2019-05-28 | 20105785005_ISOC | ND |
2019-05-28 | 20105785001_ISOC | ND |
2019-05-28 | 20105785004_ISOC | ND |
2019-05-28 | 20105785007_ISOC | ND |
2019-07-29 | 20114664001_ISOC | ND |
2019-07-29 | 20114664002_ISOC | ND |