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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Hearthstone Manor

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

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
20150.850 ppb21ND - 1.70 ppb
20161.21 ppb330.830 ppb - 1.70 ppb
20170.542 ppb63ND - 1.40 ppb
20180.772 ppb53ND - 1.80 ppb
20190.260 ppb51ND - 1.30 ppb

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