Know Your Environment. Protect Your Health.

Dinoseb

Chester Water Authority

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND30ND
2021N/A00N/A
2022ND10ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-102308353001ND
2020-02-0321663743.00ND
2020-04-0322019223.00ND
2020-07-0122603915.00ND
2022-11-0827819933.00ND
2023-05-1028896370.00ND
2023-07-1229299127.00ND
2023-12-0730242260.00ND