Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Franklin Water Supply

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND30ND
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
2018-01-2535370415004ND
2018-01-2535370415004ND
2018-05-0335390226001ND
2018-05-0335390226001ND
2018-07-0935403036001ND
2018-07-0935403036001ND
2019-01-1535442684001ND
2019-01-1535442684001ND
2019-07-0935480734001ND
2019-07-0935480734001ND
2020-01-0735522561001ND
2020-09-2835581275001ND
2021-02-1135611668001ND
2021-11-3035680898001ND
2022-01-0635688910 001ND
2022-01-0635688910001ND
2022-07-2835735504001ND
2023-09-2635830711001ND
2023-10-0935833396001ND