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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Porter SUD

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

 

107

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
2014ND220ND
2015ND160ND
2016ND160ND
2017ND210ND
2018ND160ND
2019ND160ND

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
2014-03-04AC45540ND
2014-03-04AC45543ND
2014-03-04AC45544ND
2014-03-04AC45542ND
2014-03-04AC45545ND
2014-03-04AC45548ND
2014-03-04AC45469ND
2014-03-04AC45487ND
2014-03-04AC45470ND
2014-03-04AC45465ND
2014-04-02AC49103ND
2014-04-02AC49119ND
2014-04-02AC49117ND
2014-04-02AC49104ND
2014-07-08AC59069ND
2014-07-08AC59071ND
2014-07-08AC59072ND
2014-07-08AC59070ND
2014-10-03AC68885ND
2014-10-03AC68883ND
2014-10-03AC68922ND
2014-10-03AC68882ND
2015-01-28AC78119ND
2015-01-28AC78115ND
2015-01-28AC78120ND
2015-01-28AC78113ND
2015-06-15AC95908ND
2015-06-15AC95898ND
2015-06-15AC95904ND
2015-06-15AC95925ND
2015-07-10AC99133ND
2015-07-10AC99119ND
2015-07-10AC99130ND
2015-07-10AC99131ND
2015-11-19AD14206ND
2015-11-19AD14202ND
2015-11-19AD14197ND
2015-11-19AD14196ND
2016-01-12AD17541ND
2016-01-12AD17539ND
2016-01-12AD17547ND
2016-01-12AD17536ND
2016-04-14AD33167ND
2016-04-14AD33166ND
2016-04-14AD33165ND
2016-04-14AD33168ND
2016-07-15AD44472ND
2016-07-15AD44461ND
2016-07-15AD44458ND
2016-07-15AD44453ND
2016-11-01AD55803ND
2016-11-01AD55807ND
2016-11-01AD55804ND
2016-11-01AD55808ND
2017-01-19AD65831ND
2017-01-19AD65835ND
2017-01-19AD65834ND
2017-01-19AD65830ND
2017-01-19AD65701ND
2017-01-19AD65698ND
2017-01-19AD65699ND
2017-01-19AD65700ND
2017-04-27AD81494ND
2017-04-27AD81492ND
2017-04-27AD81485ND
2017-04-27AD81493ND
2017-08-14AD92893ND
2017-08-14AD92894ND
2017-08-14AD92888ND
2017-08-14AD92892ND
2017-10-11AE00433ND
2017-10-11AE00358ND
2017-10-11AE00355ND
2017-10-11AE00357ND
2017-10-11AE00356ND
2018-01-09AE08327ND
2018-01-09AE08329ND
2018-01-09AE08315ND
2018-01-09AE08311ND
2018-04-05AE21432ND
2018-04-05AE21431ND
2018-04-05AE21406ND
2018-04-05AE21405ND
2018-08-31AE39139ND
2018-08-31AE39136ND
2018-08-31AE39140ND
2018-08-31AE39137ND
2018-10-10AE43255ND
2018-10-10AE43256ND
2018-10-10AE43254ND
2018-10-10AE43259ND
2019-01-23AE50940ND
2019-01-23AE50919ND
2019-01-23AE50920ND
2019-01-23AE50922ND
2019-04-08AE61372ND
2019-04-08AE61373ND
2019-04-08AE61368ND
2019-04-08AE61369ND
2019-07-26AE76147ND
2019-07-26AE76145ND
2019-07-26AE76148ND
2019-07-26AE76158ND
2019-10-15AE86628ND
2019-10-15AE86631ND
2019-10-15AE86633ND
2019-10-15AE86629ND