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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

San Andreas Mutual Water Company

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND10ND
2017ND20ND
2018N/A00N/A
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-04-085810-003-1035ND
2014-04-085810-005-1100ND
2016-02-165810-001-1545ND
2017-03-155810-003-1430ND
2017-03-155810-005-1445ND
2019-06-115810-001-1515ND