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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Lometa Regional 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

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND80ND
2017ND80ND
2018ND80ND
20190.322 ppb92ND - 1.90 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
2014-02-17AC43438ND
2014-04-30AC52340ND
2014-08-05AC62117ND
2014-11-12AC71835ND
2015-03-30AC86531ND
2015-05-18AC92316ND
2015-08-20AD04842ND
2015-10-05AD09409ND
2016-01-14AD18346ND
2016-01-14AD18200ND
2016-04-06AD32053ND
2016-04-06AD32052ND
2016-07-13AD44057ND
2016-07-13AD44058ND
2016-10-25AD54587ND
2016-10-25AD54588ND
2017-01-30AD67495ND
2017-01-30AD67496ND
2017-04-06AD78737ND
2017-04-06AD78741ND
2017-08-22AD93705ND
2017-08-22AD93703ND
2017-11-21AE05538ND
2017-11-21AE05537ND
2018-03-01AE16289ND
2018-03-01AE16288ND
2018-04-30AE24365ND
2018-04-30AE24364ND
2018-08-31AE39042ND
2018-08-31AE39041ND
2018-10-10AE43007ND
2018-10-10AE43006ND
2019-02-06AE531081.90 ppb
2019-02-06AE532541.000 ppb
2019-03-18AE58669ND
2019-04-01AE60666ND
2019-04-01AE60674ND
2019-07-01AE72784ND
2019-07-01AE72785ND
2019-10-01AE85290ND
2019-10-01AE85293ND