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EWG's Tap Water Database — 2021 UPDATE

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DCPA di-acid degradate

City of Moses Lake

DCPA di-acid degradate is a residue 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.

 

24

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
2015ND10ND
20160.0750 ppb83ND - 0.300 ppb
2017ND20ND
20180.0367 ppb93ND - 0.130 ppb
20190.443 ppb43ND - 1.35 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-1084034ND
2016-02-17ND
2016-03-080.200 ppb
2016-04-18ND
2016-04-180.300 ppb
2016-06-20ND
2016-06-20ND
2016-08-160.1000 ppb
2016-09-20ND
2017-03-28ND
2017-03-29ND
2018-04-03ND
2018-04-03ND
2018-04-03ND
2018-04-030.1000 ppb
2018-07-09ND
2018-08-13ND
2018-09-180.130 ppb
2018-12-10ND
2018-12-170.1000 ppb
2019-03-26ND
2019-03-260.280 ppb
2019-04-011.35 ppb
2019-04-010.140 ppb