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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Red Hill Waterworks Inc.

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

MORE ABOUT THIS CONTAMINANT

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND120ND
2017ND20ND
2018N/A00N/A
2019ND60ND

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
2016-02-0435228303005ND
2016-02-0435228303004ND
2016-02-0435228303003ND
2016-02-0435228303004ND
2016-02-0435228303005ND
2016-02-0435228303003ND
2016-12-0835282709004ND
2016-12-0835282709005ND
2016-12-0835282709006ND
2016-12-0835282709006ND
2016-12-0835282709005ND
2016-12-0835282709004ND
2017-10-1735342600001ND
2017-10-1735342600001ND
2019-09-1335498092001ND
2019-09-1335498092003ND
2019-09-1335498092002ND
2019-09-1335498092001ND
2019-09-1335498092003ND
2019-09-1335498092002ND