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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Pennsylvania American Water Company

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
2013N/A00N/A
2014ND20ND
2015N/A00N/A
2016N/A00N/A
20170.800 ppb31ND - 2.40 ppb
2018ND40ND
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
2014-04-0825319701ND
2014-07-0226092001ND
2017-04-0316049430ND
2017-07-12165231142.40 ppb
2017-11-1317123354ND
2018-01-0438148901ND
2018-04-0239058201ND
2018-07-0240187801ND
2018-10-0141298801ND
2019-07-0244999901ND
2019-07-2245996201ND