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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Connecticut Water Company - Northern Region-Western System

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

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015ND190ND
2016ND30ND
2017ND110ND
2018ND30ND
2019ND20ND

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
2014-03-20140325CWCSOC5ND
2015-01-203173045ND
2015-02-113185960ND
2015-03-193210162ND
2015-03-193210171ND
2015-03-303216186ND
2015-03-313216986ND
2015-04-223230621ND
2015-04-223230629ND
2015-04-223230613ND
2015-04-273231828ND
2015-04-283232537ND
2015-05-263249447ND
2015-06-12BJ30561SOC5ND
2015-07-01BJ40227SOC5ND
2015-07-02BJ41078SOC5ND
2015-07-30BJ65812SOC5ND
2015-08-13BJ73997SOC5ND
2015-08-21BJ79580SOC5ND
2015-08-28BJ83828SOC5ND
2016-01-27BK58056SOC5ND
2016-05-25BN40004SOC5ND
2016-06-23BN62227SOC5ND
2017-03-03BX79851SOC5ND
2017-03-03BX79849SOC5ND
2017-04-06BY00572SOC5ND
2017-04-21BY07960SOC5ND
2017-04-21BY07962SOC5ND
2017-05-30BY30818SOC5ND
2017-06-01BY32097SOC5ND
2017-07-07BY54443SOC5ND
2017-07-14BY60158SOC5ND
2017-07-27BY73973SOC5ND
2017-08-11BY83260SOC5ND
2018-01-31BZ82950SOC5ND
2018-06-28CA80715SOC5ND
2018-07-26CA99050ND
2019-01-09SOC 200518249ND
2019-03-11SOC 200524185ND