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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Central Texas Water Supply Corporation

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND40ND
2016ND60ND
2017ND40ND
2018ND40ND
2019ND60ND

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
2014-07-23AC60798ND
2014-10-22AC70317ND
2015-03-10AC83461ND
2015-06-01AC93976ND
2015-09-03AD05616ND
2015-11-04AD12553ND
2016-03-14AD28449ND
2016-03-14AD28609ND
2016-03-14AD28610ND
2016-06-01AD38941ND
2016-09-29AD51921ND
2016-12-09AD61386ND
2017-03-20AD75701ND
2017-06-12AD86971ND
2017-08-21AD93525ND
2017-10-17AE01028ND
2018-01-17AE09105ND
2018-04-12AE22265ND
2018-08-13AE36556ND
2018-10-04AE42666ND
2019-01-22AE50665ND
2019-03-27AE60298ND
2019-05-07AE65128ND
2019-08-15AE79038ND
2019-08-27AE80920ND
2019-10-31AE88134ND