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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Darbonne Ws North

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

MORE ABOUT THIS CONTAMINANT

 

24

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
2016ND100ND
2017ND20ND
2018N/A00N/A
2019ND100ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.

ppb = parts per billion

All test results

Date Lab ID Result
2014-12-01AE00107ND
2014-12-01AE00107ND
2016-09-2635268076005ND
2016-09-2635268076004ND
2016-09-2635268076003ND
2016-09-2635268076001ND
2016-09-2635268076002ND
2016-09-2635268076003ND
2016-09-2635268076004ND
2016-09-2635268076005ND
2016-09-2635268076002ND
2016-09-2635268076001ND
2017-11-0635346857001ND
2017-11-0635346857001ND
2019-09-0935496832001ND
2019-09-0935496832005ND
2019-09-0935496832004ND
2019-09-0935496832003ND
2019-09-0935496832002ND
2019-09-0935496832001ND
2019-09-0935496832005ND
2019-09-0935496832004ND
2019-09-0935496832003ND
2019-09-0935496832002ND