Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Summers Circle Water Llc

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
2018ND40ND
2019ND30ND
2020N/A00N/A
2021ND40ND
2022ND40ND
2023ND20ND

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
2018-03-05ND
2018-06-13ND
2018-08-07ND
2018-10-10ND
2019-03-18ND
2019-06-25ND
2019-11-20ND
2021-03-154090867ND
2021-06-144129199ND
2021-08-174171861ND
2021-10-124202697ND
2022-03-104261536ND
2022-06-204308480ND
2022-08-024330277ND
2022-10-034350852ND
2023-03-224431745ND
2023-06-084466566ND