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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Galveston County Water Control and Improvement District 8

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

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND90ND
2016ND80ND
2017ND90ND
2018ND90ND
2019ND80ND

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
2014-02-27AC44994ND
2014-02-27AC44997ND
2014-02-27AC45131ND
2014-05-28AC55380ND
2014-05-28AC55376ND
2014-08-13AC63539ND
2014-08-13AC63546ND
2014-11-20AC72637ND
2014-11-20AC72638ND
2015-01-27AC77901ND
2015-01-27AC77900ND
2015-06-02AC94285ND
2015-06-02AC94220ND
2015-06-02AC94274ND
2015-08-17AD04273ND
2015-08-17AD04307ND
2015-11-30AD14708ND
2015-11-30AD14706ND
2016-03-23AD30096ND
2016-03-23AD30103ND
2016-05-19AD37476ND
2016-05-19AD37478ND
2016-09-29AD51834ND
2016-09-29AD51848ND
2016-11-21AD58778ND
2016-11-21AD58781ND
2017-02-07AD69167ND
2017-02-07AD69169ND
2017-02-07AD69335ND
2017-05-30AD85861ND
2017-05-30AD85854ND
2017-08-03AD91999ND
2017-08-03AD91998ND
2017-10-09AE00054ND
2017-10-09AE00057ND
2018-02-05AE12201ND
2018-02-05AE12202ND
2018-03-19AE18929ND
2018-04-13AE22498ND
2018-04-13AE22461ND
2018-07-18AE33738ND
2018-07-18AE33739ND
2018-10-31AE45036ND
2018-10-31AE45037ND
2019-02-04AE52661ND
2019-02-04AE52662ND
2019-04-25AE63700ND
2019-04-25AE63693ND
2019-07-29AE76134ND
2019-07-29AE76132ND
2019-10-25AE87699ND
2019-10-25AE87687ND