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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Newellton Water System

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20149.04 ppb229.04 ppb
20151.45 ppb42ND - 2.90 ppb
20161.80 ppb42ND - 3.60 ppb
2017ND40ND
20180.950 ppb42ND - 1.90 ppb
20194.20 ppb42ND - 8.40 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
2014-03-17AD898559.04 ppb
2014-03-17AD898559.04 ppb
2015-03-0335177844005ND
2015-03-0335177844005ND
2015-09-16352079720162.90 ppb
2015-09-16352079720162.90 ppb
2016-01-1135224622004ND
2016-01-1135224622004ND
2016-09-07352645980013.60 ppb
2016-09-07352645980013.60 ppb
2017-01-0935288675005ND
2017-01-0935288675005ND
2017-09-2535338816006ND
2017-09-2535338816006ND
2018-01-08353678240011.90 ppb
2018-01-08353678240011.90 ppb
2018-07-3035407879001ND
2018-07-3035407879001ND
2019-01-1435442603002ND
2019-01-1435442603002ND
2019-07-31354867380018.40 ppb
2019-07-31354867380018.40 ppb