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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Blanco

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

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
20150.525 ppb41ND - 2.10 ppb
20160.278 ppb92ND - 1.50 ppb
2017ND90ND
2018ND90ND
2019ND90ND

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
2014-02-26AC44780ND
2014-02-26AC44831ND
2014-06-18AC57281ND
2014-07-30AC61534ND
2014-11-24AC72858ND
2015-03-03AC82537ND
2015-06-24AC972392.10 ppb
2015-09-11AD06705ND
2015-10-15AD10814ND
2016-01-20AD189211.50 ppb
2016-01-20AD19033ND
2016-01-20AD189201.000 ppb
2016-04-19AD33447ND
2016-04-19AD33446ND
2016-09-22AD50699ND
2016-09-22AD50705ND
2016-11-22AD59036ND
2016-11-22AD59037ND
2017-02-28AD72402ND
2017-02-28AD72401ND
2017-02-28AD72574ND
2017-04-19AD80166ND
2017-04-19AD80169ND
2017-08-22AD93725ND
2017-08-22AD93722ND
2017-10-17AE01034ND
2017-10-17AE01033ND
2018-02-26AE15370ND
2018-02-26AE15371ND
2018-02-26AE15529ND
2018-04-16AE22468ND
2018-04-16AE22470ND
2018-09-18AE40432ND
2018-09-18AE40430ND
2018-11-28AE47147ND
2018-11-28AE47146ND
2019-03-05AE57107ND
2019-03-05AE57104ND
2019-05-16AE66814ND
2019-05-16AE66816ND
2019-05-16AE66935ND
2019-09-17AE83548ND
2019-09-17AE83549ND
2019-11-07AE88866ND
2019-11-07AE88865ND