Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Hamburg Municipal Water&sewer 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.

 

14

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
2020ND40ND
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
2020-05-2722458781.00ND
2020-05-2722458782.00ND
2020-08-1923039273.00ND
2020-08-1923039274.00ND
2023-05-1729152717.00ND
2023-05-1729152721.00ND
2023-05-2329152718.00ND
2023-05-2329152719.00ND
2023-05-2429152720.00ND
2023-07-1129343866.00ND
2023-07-1229343865.00ND
2023-07-1729542174.00ND
2023-07-1829542175.00ND
2023-09-1229742182.00ND