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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Henderson

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

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015N/A00N/A
2016ND10ND
2017ND90ND
2018ND30ND
2019ND10ND

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
2014-01-23Q1402243001ND
2014-01-23Q1402243002ND
2014-02-13Q1404579010ND
2014-04-09Q1411334004ND
2014-10-08Q1451902007ND
2016-01-27Q1603640005ND
2017-04-17Q1715499024ND
2017-04-17Q1715499027ND
2017-04-17Q1715499026ND
2017-04-17Q1715499025ND
2017-05-19Q1720846004ND
2017-09-14Q1743706007ND
2017-09-14Q1743706016ND
2017-12-07Q1763859011ND
2017-12-07Q1763859008ND
2018-03-13Q1810104013ND
2018-03-13Q1810104012ND
2018-05-24Q1820944003ND
2019-01-10Q1901410003ND