Know Your Environment. Protect Your Health.

Dinoseb

Town of Ridgecrest Water Supply

NOTE: Town of Ridgecrest Water Supply purchases water from Town of Ferriday Water System which is required to test for dinoseb. Sample information shown below was taken by Town of Ferriday Water System.

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

 

12

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
2019ND80ND
2020ND20ND
2021N/A00N/A
2022ND40ND
2023N/A00N/A

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

NOTE: Town of Ridgecrest Water Supply purchases water from Town of Ferriday Water System which is required to test for dinoseb. Sample information shown below was taken by Town of Ferriday Water System.

Date Lab ID Result
2019-08-1535491138001ND
2019-08-1535491138002ND
2019-08-1535491138003ND
2019-08-1535491138004ND
2019-08-1535491138001ND
2019-08-1535491138002ND
2019-08-1535491138003ND
2019-08-1535491138004ND
2022-06-2035726996001ND
2022-06-2035726996002ND
2022-06-2035726996003ND
2022-06-2035726996004ND