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EWG's Tap Water Database — 2019 UPDATE

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DCPA mono- and di-acid degradates

Washington Aqueduct Division

DCPA degradates are residues of the herbicide dacthal, or DCPA, which is used for urban, household and agricultural applications. Dacthal is a possible human carcinogen whose use was limited by the EPA in 2005 due to concerns about water contamination.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013ND80ND
20140.0250 ppb82ND - 0.1000 ppb
20150.0125 ppb81ND - 0.1000 ppb
2016ND80ND
2017ND80ND

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
2013-07-01McMillanND
2013-10-01DalecarliaND
2013-10-01McMillanND
2014-01-01DalecarliaND
2014-01-01McMillanND
2014-04-01DalecarliaND
2014-04-01McMillan0.1000 ppb
2014-07-01DalecarliaND
2014-07-01McMillan0.1000 ppb
2014-10-01DalecarliaND
2014-10-01McMillanND
2015-01-01DalecarliaND
2015-01-01McMillanND
2015-04-01Dalecarlia0.1000 ppb
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
2016-07-01McMillanND
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