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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

SCWA Mather-Sunrise

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

MORE ABOUT THIS CONTAMINANT

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND80ND
2015ND70ND
2016N/A00N/A
2017N/A00N/A
2018ND60ND
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
2014-08-135810-017-1106ND
2014-08-135810-016-1145ND
2014-08-135810-015-1205ND
2014-08-135810-008-0800ND
2014-08-135810-007-0817ND
2014-08-135810-006-1005ND
2014-08-135810-001-0914ND
2014-08-135810-002-0842ND
2015-08-195810-001-1227ND
2015-08-195810-002-1324ND
2015-08-195810-006-1155ND
2015-08-195810-007-1037ND
2015-08-205810-015-0930ND
2015-08-205810-016-0856ND
2015-08-205810-017-0819ND
2018-08-095810-001-1438ND
2018-08-095810-015-1526ND
2018-08-095810-006-1416ND
2018-08-095810-002-1354ND
2018-08-165810-017-1239ND
2018-08-165810-016-1343ND
2019-05-065810-007-1415ND