Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

State College Boro Water Auth.

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND100ND
2021N/A00N/A
2022N/A00N/A
2023ND100ND

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
2020-05-1322292201.00ND
2020-05-1322292174.00ND
2020-05-1322292282.00ND
2020-05-1322292228.00ND
2020-05-1322292255.00ND
2020-08-1723069139.00ND
2020-08-1722876905.00ND
2020-08-1723068956.00ND
2020-08-1722876886.00ND
2020-08-1722876929.00ND
2023-05-1528981619.00ND
2023-05-1528981628.00ND
2023-05-1528981610.00ND
2023-05-1528981642.00ND
2023-05-1528981596.00ND
2023-08-1429577808.00ND
2023-08-1629578192.00ND
2023-08-1629578134.00ND
2023-08-1629578221.00ND
2023-08-1629578163.00ND