Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Saint Louis Park

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND80ND
2021ND10ND
2022ND10ND
2023ND60ND

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
2018-04-1018D0389-01ND
2020-01-2220A0832-01ND
2020-05-2120E1400-01ND
2020-05-2120E1400-02ND
2020-05-2120E1401-02ND
2020-06-2520F2056-01ND
2020-08-0520H0263-03ND
2020-08-0520H0263-02ND
2020-08-0520H0263-01ND
2021-11-3021L0010-01ND
2022-02-0822B0528-01ND
2023-06-0823F0898-01ND
2023-06-0823F0898-03ND
2023-07-1923G1149-01ND
2023-07-1923G1149-02ND
2023-07-1923G1149-03ND
2023-10-3023J1664-03ND