Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Torrington Water Company

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND40ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-05-08D8E0876-02SOCRND
2018-05-08D8E0876-01SOCRND
2019-05-14D9E1449-01SOCND
2019-05-14D9E1476-02SOCRND
2019-05-14D9E1476-01SOCRND
2019-08-13D9H1460-01SOCND
2020-05-12D0E0828-02SOCND
2020-05-12D0E0828-01SOCND
2021-05-11D1E1034-02SOCND
2021-05-11D1E1034-01SOCND
2022-05-10D2E0906-01SOCND
2022-05-11D2E1173-02SOCND
2022-05-11D2E1173-01SOCND
2022-08-09D2H1077-01SOCND
2023-06-06202309357-SOCRND