Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dalapon

Clay 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND50ND
2017ND40ND
2018ND30ND
2019ND50ND

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
2014-05-12AC53899ND
2015-07-30AD01763ND
2015-12-09AD16195ND
2016-03-03AD26858ND
2016-03-03AD26972ND
2016-05-24AD37957ND
2016-07-19AD44713ND
2016-10-27AD55054ND
2017-01-31AD67800ND
2017-05-22AD85008ND
2017-08-07AD92225ND
2017-12-11AE07415ND
2018-06-19AE30426ND
2018-08-22AE38111ND
2018-11-19AE46398ND
2019-02-12AE54046ND
2019-02-12AE54163ND
2019-06-19AE71281ND
2019-08-15AE78829ND
2019-11-13AE89090ND