Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Mansfield Water System

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND20ND
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
2018-04-1935387645001ND
2018-04-1935387645001ND
2018-08-0635409597001ND
2018-08-0635409597001ND
2019-03-1335454725001ND
2019-03-1335454725001ND
2019-08-0135486698001ND
2019-08-0135486698001ND
2020-02-0335528231001ND
2020-09-2235579680001ND
2021-03-0335616824004ND
2021-08-1735657244001ND
2022-02-2235699238003ND
2022-08-2235742155002ND
2023-02-0735778295005ND
2023-08-2135823285001ND