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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Locust Valley Water District

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
2014ND40ND
2015N/A00N/A
2016ND80ND
2017ND50ND
2018N/A00N/A
2019ND30ND

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
2014-08-251408H39-001-SOCSND
2014-08-261408I38-001-SOCSND
2014-08-261408I38-002-SOCSND
2014-09-171409D33-001-SOCSND
2016-01-151601A59-001-SOCND
2016-04-111604982-001-SOCND
2016-08-151608E05-001-POCND
2016-08-171608G38-001-SOCND
2016-08-301608R44-001-SOCND
2016-09-141609B27-001-SOCND
2016-10-12701840001-SOCND
2016-12-19707156001ND
2017-08-227027931001-SOCND
2017-08-287028363001-SOCND
2017-08-307028532001-SOCND
2017-09-057028856001-SOCND
2017-09-117026450001-SOCND
2019-08-2770102888001ND
2019-09-0970104148001ND
2019-09-0970104148002ND