2,4,5-TP (Silvex)
New Britain Water Department
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.
28
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 | 4 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 6 | 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 |
|---|---|---|
| 2014-05-23 | 7094-03154SOC2 | ND |
| 2014-05-23 | 7095-03155SOC2 | ND |
| 2014-05-23 | 7096-03156SOC2 | ND |
| 2014-05-23 | 7093-02881SOC2 | ND |
| 2015-03-04 | E503351-1SOC | ND |
| 2015-05-21 | 7211-03241SOC2 | ND |
| 2015-05-21 | 7213-03243SOC2 | ND |
| 2015-05-21 | 7212-03242SOC2 | ND |
| 2015-05-21 | 7214-03244SOC2 | ND |
| 2015-09-03 | E509525-1SOC | ND |
| 2016-12-20 | 18685-03740SOC2 | ND |
| 2016-12-20 | 18687-03742SOC2 | ND |
| 2016-12-20 | 18686-03741SOC2 | ND |
| 2016-12-20 | 18688-03743SOC2 | ND |
| 2017-02-17 | 1929-03799SOC2 | ND |
| 2017-04-05 | 3988-03821SOC2 | ND |
| 2017-05-16 | 5847-03841SOCR | ND |
| 2017-05-16 | 5849-03842SOCR | ND |
| 2017-05-16 | 5848-03843SOCR | ND |
| 2017-05-16 | 5850-03844SOCR | ND |
| 2018-04-16 | SOCR 200492172 | ND |
| 2018-04-16 | SOCR 200492175 | ND |
| 2018-04-16 | SOCR 200492173 | ND |
| 2018-04-16 | SOCR 200492174 | ND |
| 2019-04-25 | SOCR 200529602 | ND |
| 2019-04-25 | SOCR 200529605 | ND |
| 2019-04-25 | SOCR 200529603 | ND |
| 2019-04-25 | SOCR 200529604 | ND |