Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Middletown Water Department

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
2018ND50ND
2019ND10ND
2020ND10ND
2021ND50ND
2022ND10ND
2023ND10ND

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
2018-03-01SOCR 200489003ND
2018-03-28SOC 200490769ND
2018-04-16SOC 200492153ND
2018-08-07SOC 200501550ND
2018-08-07SOC 200501551ND
2019-05-21SOCR 200533085ND
2020-05-06SOCR 200574726ND
2021-04-07SOCR 200612107ND
2021-05-26SOC 200618555ND
2021-05-26SOC 200618557ND
2021-08-26SOC 200629911ND
2021-08-26SOC 200629912ND
2022-05-11H300182528 300209356ND
2023-06-23H300370775 300370777ND