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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Jefferson County Water Control and Improvement District 10

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

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND90ND
2017ND80ND
2018ND80ND
20190.256 ppb92ND - 1.30 ppb

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
2014-03-13AC46915ND
2014-03-13AC46948ND
2014-06-02AC55603ND
2014-06-02AC55585ND
2014-07-22AC60608ND
2014-07-22AC60604ND
2014-12-19AC75648ND
2014-12-19AC75646ND
2015-02-09AC79696ND
2015-02-09AC79695ND
2015-04-21AC88987ND
2015-04-21AC88986ND
2015-08-14AD04270ND
2015-08-14AD04282ND
2015-11-23AD14392ND
2015-11-23AD14413ND
2016-02-01AD21022ND
2016-02-01AD21025ND
2016-02-01AD21206ND
2016-04-25AD33921ND
2016-04-25AD33920ND
2016-09-28AD51881ND
2016-09-28AD51970ND
2016-12-07AD61132ND
2016-12-07AD61130ND
2017-01-30AD67478ND
2017-01-30AD67472ND
2017-05-18AD84800ND
2017-05-18AD84798ND
2017-09-12AD95731ND
2017-09-12AD95729ND
2017-11-08AE04282ND
2017-11-08AE04281ND
2018-01-31AE11515ND
2018-01-31AE11514ND
2018-06-13AE29790ND
2018-06-13AE29789ND
2018-08-22AE38080ND
2018-08-22AE38079ND
2018-10-01AE42227ND
2018-10-01AE42204ND
2019-02-21AE55273ND
2019-02-21AE55274ND
2019-02-21AE55429ND
2019-05-29AE683951.000 ppb
2019-05-29AE683961.30 ppb
2019-08-01AE76782ND
2019-08-01AE76778ND
2019-12-04AE91239ND
2019-12-04AE91238ND