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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

Washington Aqueduct Division

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
20130.150 ppb81ND - 1.20 ppb
2014ND80ND
2015ND80ND
20160.163 ppb81ND - 1.30 ppb
2017ND80ND

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
2012-01-01McMillanND
2012-01-01DalecarliaND
2012-04-01DalecarliaND
2012-04-01McMillanND
2012-07-01DalecarliaND
2012-07-01McMillanND
2012-10-01DalecarliaND
2012-10-01McMillanND
2013-01-01DalecarliaND
2013-01-01McMillanND
2013-04-01McMillanND
2013-04-01DalecarliaND
2013-07-01DalecarliaND
2013-07-01McMillan1.20 ppb
2013-10-01DalecarliaND
2013-10-01McMillanND
2014-01-01DalecarliaND
2014-01-01McMillanND
2014-04-01DalecarliaND
2014-04-01McMillanND
2014-07-01DalecarliaND
2014-07-01McMillanND
2014-10-01DalecarliaND
2014-10-01McMillanND
2015-01-01DalecarliaND
2015-01-01McMillanND
2015-04-01DalecarliaND
2015-04-01McMillanND
2015-07-01McMillanND
2015-07-01DalecarliaND
2015-10-01DalecarliaND
2015-10-01McMillanND
2016-01-01DalecarliaND
2016-01-01McMillanND
2016-04-01McMillanND
2016-04-01DalecarliaND
2016-07-01DalecarliaND
2016-07-01McMillan1.30 ppb
2016-10-01DalecarliaND
2016-10-01McMillanND
2017-01-01DalecarliaND
2017-01-01McMillanND
2017-04-01DalecarliaND
2017-04-01McMillanND
2017-07-01DalecarliaND
2017-07-01McMillanND
2017-10-01DalecarliaND
2017-10-01McMillanND