2,4,5-TP (Silvex)
Aquarion Water Company of Connecticut - Main 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.
41
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 13 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 12 | 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 |
|---|---|---|
| 2014-06-02 | 201407401-SOCR | ND |
| 2014-06-02 | 201407388-SOCR | ND |
| 2014-06-02 | 201407431-SOCR | ND |
| 2015-07-06 | 201508646-SOC | ND |
| 2015-07-06 | 201508663-SOC | ND |
| 2015-07-06 | 201508689-SOC | ND |
| 2015-07-06 | 201508690-SOCR | ND |
| 2015-07-06 | 201508664-SOCR | ND |
| 2015-07-06 | 201508647-SOCR | ND |
| 2015-07-08 | 201508843-SOC | ND |
| 2015-08-05 | 201510632-SOC | ND |
| 2015-10-05 | 201514160-SOC | ND |
| 2015-10-05 | 201514098-SOC | ND |
| 2015-10-06 | 201514213-SOC | ND |
| 2015-10-07 | 201514316-SOC | ND |
| 2015-10-07 | 201514322-SOC | ND |
| 2016-06-06 | 201607043-SOCR | ND |
| 2016-06-06 | 201607072-SOCR | ND |
| 2016-06-06 | 201607054-SOCR | ND |
| 2017-06-05 | 201708144-SOCR | ND |
| 2017-06-05 | 201708088-SOCR | ND |
| 2017-06-05 | 201708116-SOCR | ND |
| 2018-06-04 | 201807503-SOCR | ND |
| 2018-06-04 | 201807450-SOCR | ND |
| 2018-06-04 | 201807475-SOCR | ND |
| 2018-07-02 | 201809385-SOC | ND |
| 2018-07-02 | 201809434-SOC | ND |
| 2018-07-02 | 201809407-SOC | ND |
| 2018-07-05 | 201809658-SOC | ND |
| 2019-05-20 | 201907135-SOC | ND |
| 2019-05-20 | 201907132-SOC | ND |
| 2019-05-20 | 201907127-SOC | ND |
| 2019-06-03 | 201907857-SOCR | ND |
| 2019-06-03 | 201907834-SOCR | ND |
| 2019-06-03 | 201907907-SOCR | ND |
| 2019-06-17 | 201908775-SOC | ND |
| 2019-07-01 | 201909657-SOC | ND |
| 2019-07-01 | 201909689-SOC | ND |
| 2019-07-01 | 201909695-SOC | ND |
| 2019-07-01 | 201909693-SOC | ND |
| 2019-07-02 | 201909818-SOC | ND |