Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Sauk

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND10ND
2020N/A00N/A
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-08-211808H81-001CND
2018-11-061811449-001CND
2018-11-061811449-001CND
2018-11-061811449-003CND
2018-11-061811449-003CND
2019-01-221901C92-001CND
2021-08-032108168-001CND
2022-02-222202H58-001CND
2023-04-182304450-001CND
2023-04-182304450-002CND
2023-07-182307C20-001CND