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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Old Marbach School Water Supply Corporation

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND20ND
2017ND10ND
2018ND20ND
2019ND20ND

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
2014-05-29AC55455ND
2015-08-06AD03046ND
2015-08-06AD02925ND
2016-02-09AD22828ND
2016-06-08AD39709ND
2017-05-24AD85679ND
2018-02-14AE13836ND
2018-08-08AE36097ND
2019-06-17AE70824ND
2019-12-09AE91959ND