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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Clwsc Canyon Lake Shores

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

 

131

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND250ND
2015ND170ND
2016ND230ND
2017ND230ND
2018ND200ND
2019ND230ND

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
2014-02-18AC43372ND
2014-02-18AC43330ND
2014-02-18AC43317ND
2014-02-18AC43337ND
2014-02-18AC43312ND
2014-04-30AC52430ND
2014-04-30AC52431ND
2014-04-30AC52428ND
2014-04-30AC52484ND
2014-04-30AC52498ND
2014-04-30AC52485ND
2014-04-30AC52483ND
2014-09-03AC65686ND
2014-09-03AC65693ND
2014-09-03AC65690ND
2014-09-03AC65721ND
2014-09-03AC65720ND
2014-09-03AC65723ND
2014-09-03AC65726ND
2014-10-08AC69227ND
2014-10-08AC69175ND
2014-10-08AC69174ND
2014-10-08AC69177ND
2014-10-08AC69173ND
2014-10-08AC69226ND
2015-02-03AC79005ND
2015-02-03AC79012ND
2015-02-03AC79006ND
2015-02-03AC79004ND
2015-03-26AC86382ND
2015-05-13AC91818ND
2015-05-13AC91814ND
2015-05-13AC91806ND
2015-05-13AC91809ND
2015-08-12AD03807ND
2015-08-12AD03806ND
2015-08-12AD03811ND
2015-08-12AD03813ND
2015-11-03AD12382ND
2015-11-03AD12385ND
2015-11-03AD12386ND
2015-11-03AD12383ND
2016-02-03AD21922ND
2016-02-03AD21925ND
2016-02-03AD21926ND
2016-02-03AD21768ND
2016-02-03AD21799ND
2016-02-03AD21802ND
2016-02-03AD21769ND
2016-03-09AD28002ND
2016-03-09AD27997ND
2016-04-27AD34498ND
2016-04-27AD34497ND
2016-04-27AD34376ND
2016-04-27AD34373ND
2016-04-27AD34370ND
2016-04-27AD34377ND
2016-07-26AD45679ND
2016-07-26AD45678ND
2016-07-26AD45675ND
2016-07-26AD45671ND
2016-10-04AD52428ND
2016-10-04AD52427ND
2016-10-04AD52431ND
2016-10-04AD52432ND
2017-01-25AD66890ND
2017-01-25AD66887ND
2017-01-25AD66888ND
2017-01-25AD66788ND
2017-01-25AD66786ND
2017-01-25AD66789ND
2017-01-25AD66787ND
2017-02-24AD72217ND
2017-02-24AD72218ND
2017-04-11AD79179ND
2017-04-11AD79177ND
2017-04-11AD79178ND
2017-04-11AD79176ND
2017-06-27AD87954ND
2017-07-24AD90300ND
2017-07-24AD90331ND
2017-07-24AD90335ND
2017-07-24AD90330ND
2017-10-05AD99624ND
2017-10-05AD99541ND
2017-10-05AD99536ND
2017-10-05AD99535ND
2017-10-05AD99534ND
2018-02-07AE12824ND
2018-02-07AE12715ND
2018-02-07AE12713ND
2018-02-07AE12719ND
2018-02-07AE12717ND
2018-05-16AE26524ND
2018-05-16AE26554ND
2018-05-16AE26553ND
2018-05-16AE26530ND
2018-05-16AE26630ND
2018-07-26AE34645ND
2018-07-26AE34644ND
2018-07-26AE34651ND
2018-07-26AE34650ND
2018-07-26AE34728ND
2018-11-06AE45369ND
2018-11-06AE45370ND
2018-11-06AE45364ND
2018-11-06AE45365ND
2018-11-06AE45470ND
2019-02-06AE53263ND
2019-02-06AE53256ND
2019-02-06AE53257ND
2019-02-06AE53166ND
2019-02-06AE53168ND
2019-02-06AE53167ND
2019-02-06AE53169ND
2019-04-23AE63411ND
2019-04-23AE63355ND
2019-04-23AE63360ND
2019-04-23AE63353ND
2019-04-23AE63359ND
2019-08-20AE79801ND
2019-08-20AE79800ND
2019-08-20AE79799ND
2019-08-20AE79798ND
2019-10-29AE87838ND
2019-10-29AE87839ND
2019-10-29AE87847ND
2019-10-29AE87849ND
2019-10-30AE88026ND
2019-10-30AE88024ND
2019-10-30AE88025ND