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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

St. Louis City

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

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND10ND
2014ND20ND
2015ND40ND
2016ND100ND
2017ND80ND

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
2012-05-09AB71796ND
2012-05-09AB71797ND
2013-05-06AB97904ND
2014-06-02AC23738ND
2014-06-02AC23739ND
2015-06-01AC47106ND
2015-06-01AC47107ND
2015-09-22HBCB092215M515ND
2015-09-22CRCW092215M515ND
2016-03-03HBCB030316M515ND
2016-03-04CRCW030416M515ND
2016-06-06AC75865ND
2016-06-06AC75864ND
2016-06-08CRCW060816M515ND
2016-06-08HBCB060816M515ND
2016-09-30HBCB093016M515ND
2016-09-30CRCW093016M515ND
2016-12-28CRCW122816M515ND
2016-12-28HBCB122816M515ND
2017-05-19AC98045ND
2017-05-19AC98044ND
2017-06-21AC99039ND
2017-06-21AC99038ND
2017-09-29HBCB092917M515ND
2017-09-29CRCW092917M515ND
2017-11-15CRCW111517M515ND
2017-11-15HBCB111517M515ND