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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Oakley Valley Water Corporation

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

 

9

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
2014ND10ND
2015N/A00N/A
2016ND20ND
2017N/A00N/A
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
2014-09-12S1432991ND
2016-09-29S1630631ND
2016-09-29S1630621ND
2018-02-16S1769851ND
2018-05-15S1793061ND
2018-09-24S1825891ND
2018-12-31S1849731ND
2019-07-09S1906541ND
2019-09-19S1929811ND