Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Bryan County Rural Water, Sewer & Solid Waste Management District #2

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND50ND
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
2018-08-2918081323ND
2018-12-191812500ND
2019-02-061902151ND
2019-03-131903384ND
2019-04-171904501ND
2019-09-181909634ND
2019-12-181912629ND
2020-02-192002512ND
2020-07-22102000-01ND
2021-02-17104910-01ND
2021-07-14107198-01ND
2022-01-12109841-01ND
2022-07-20112533-01ND
2023-01-04114931-01ND
2023-07-12117946-01ND