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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

City of Daly City

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

 

15

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
2014N/A00N/A
2015ND20ND
2016ND90ND
2017N/A00N/A
2018N/A00N/A
2019ND40ND

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
2015-08-041610-010-1120ND
2015-12-221644-013-1115ND
2016-01-201610-004-1040ND
2016-02-031610-010-1045ND
2016-02-031610-011-0950ND
2016-02-031610-013-0815ND
2016-02-031610-018-1130ND
2016-05-041610-010-0830ND
2016-05-041610-011-0805ND
2016-05-041610-013-0640ND
2016-05-041610-018-0845ND
2019-01-091644-010-0920ND
2019-01-091644-018-0640ND
2019-02-141644-010-0830ND
2019-02-141644-018-0830ND