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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Bluebonnet 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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND50ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-02-06AC41663ND
2014-07-29AC61240ND
2015-06-04AC94684ND
2015-06-04AC94762ND
2016-03-15AD28876ND
2016-05-18AD37206ND
2016-05-18AD37351ND
2016-09-09AD48655ND
2016-11-09AD57490ND
2017-06-12AD86973ND
2017-10-10AE00186ND
2018-05-10AE25991ND
2018-05-10AE25890ND
2019-05-22AE67764ND
2019-05-22AE67640ND