Know Your Environment. Protect Your Health.

Dinoseb

Topsfield Water Department

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND10ND
2021N/A00N/A
2022ND20ND
2023ND10ND

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 Result
2018-02-28ND
2018-02-28ND
2018-09-13ND
2018-09-13ND
2019-02-04ND
2019-02-04ND
2019-02-04ND
2020-01-13ND
2022-02-03ND
2022-09-27ND
2023-03-16ND