Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Mt. Joy Boro Authority

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
2018N/A00N/A
2019ND20ND
2020ND90ND
2021N/A00N/A
2022N/A00N/A
2023ND60ND

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
2019-08-209083654-01ND
2019-11-079110611-01ND
2020-02-2021981360.00ND
2020-04-0922170968.00ND
2020-04-0922171156.00ND
2020-05-1922368386.00ND
2020-06-1022565247.00ND
2020-07-2122955059.00ND
2020-08-1122955151.00ND
2020-09-2223142316.00ND
2020-09-2223142346.00ND
2023-05-0929059167.00ND
2023-05-1529059214.00ND
2023-05-1629059215.00ND
2023-08-0129657107.00ND
2023-08-0229657108.00ND
2023-08-1529846327.00ND