2,4,5-TP (Silvex)
Logansport 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.
22
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 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-04-07 | AD90488 | ND |
| 2014-04-07 | AD90488 | ND |
| 2015-03-09 | 35178883004 | ND |
| 2015-03-09 | 35178883004 | ND |
| 2015-10-12 | 35211703005 | ND |
| 2015-10-12 | 35211703005 | ND |
| 2016-03-29 | 35236604005 | ND |
| 2016-03-29 | 35236604005 | ND |
| 2016-11-21 | 35279123001 | ND |
| 2016-11-21 | 35279123001 | ND |
| 2017-04-11 | 35306447005 | ND |
| 2017-04-11 | 35306447005 | ND |
| 2017-10-16 | 35343104001 | ND |
| 2017-10-16 | 35343104001 | ND |
| 2018-01-23 | 35370034001 | ND |
| 2018-01-23 | 35370034001 | ND |
| 2018-08-06 | 35409596001 | ND |
| 2018-08-06 | 35409596001 | ND |
| 2019-03-13 | 35454724001 | ND |
| 2019-03-13 | 35454724001 | ND |
| 2019-07-31 | 35486401001 | ND |
| 2019-07-31 | 35486401001 | ND |