Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Lakehaven Utility District

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND70ND
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND110ND

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
2018-06-19ND
2018-08-08ND
2018-08-29ND
2019-06-05ND
2019-06-05ND
2019-06-12ND
2019-06-12ND
2019-07-31ND
2019-08-06ND
2019-09-04ND
2023-05-024455700ND
2023-05-024458160ND
2023-06-274481506ND
2023-06-274481506ND
2023-06-274481506ND
2023-06-274481505ND
2023-06-274481505ND
2023-07-114486069ND
2023-07-114486069ND
2023-07-254491355ND
2023-10-104541740ND