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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

Chowan County Water System

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND20ND
2015ND10ND
2016ND10ND
2017ND20ND

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
2012-04-118045-041112-E01SND
2013-04-038045-040313-E01SND
2014-05-218045-052114-E01SND
2014-07-098045-070914-E01SND
2015-04-15ND
2016-04-138045-041316-E01SND
2017-04-058045-040517-E01SND
2017-08-168045-081617-E01SND