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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Water Authority of Western Nassau

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
2016ND10ND
2017ND10ND
2018ND40ND
2019ND40ND

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
2014-10-161410B46-001-SOCSND
2016-08-041608547-001-SOCSND
2017-08-177027580002-SOCSND
2018-08-167061886001ND
2018-08-167061886002ND
2018-09-137064738003ND
2018-09-137064738002ND
2019-02-147079657001ND
2019-02-147079657002ND
2019-02-287080978001ND
2019-05-097088940001ND