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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

East Lyme Water & Sewer Commission

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

MORE ABOUT THIS CONTAMINANT

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND100ND
2017N/A00N/A
2018ND30ND
2019ND100ND

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
2014-03-1092358CHND
2014-05-2893604CHND
2014-08-2194921CHND
2014-12-1596642CHND
2015-02-2597570CHND
2015-06-0199107CHND
2015-09-22101180CHND
2015-11-18102195CHND
2016-01-27103277CHND
2016-01-27103279CHND
2016-06-08105496CHND
2016-06-08105494CHND
2016-06-14105580CHND
2016-08-01106397GEND
2016-09-15107184GEND
2016-09-15107182GEND
2016-12-06108641GEND
2016-12-06108643GEND
2018-05-29117974GEND
2018-05-29117976GEND
2018-05-29117978GEND
2019-09-09SOC 200547920ND
2019-09-09SOC 200547919ND
2019-09-09SOC 200547920BND
2019-09-09SOC 200547921ND
2019-12-12SOC 200560024ND
2019-12-12SOC 200560025ND
2019-12-23SOC 200561104ND
2019-12-27SOC 200561241ND
2019-12-27SOC 200561242ND
2019-12-27SOC 200561243ND