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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

St. Leo University

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20151.60 ppb111.60 ppb
2016ND40ND
2017ND10ND
2018ND50ND
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 Result
2015-11-301.60 ppb
2016-03-29ND
2016-04-27ND
2016-08-10ND
2016-11-03ND
2017-07-31ND
2018-03-14ND
2018-05-29ND
2018-09-19ND
2018-11-20ND
2018-11-20ND
2019-05-06ND
2019-12-11ND