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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Barton Creek Water Supply Corporation

NOTE: Barton Creek Water Supply Corporation purchases water from Travis County Municipal Utility District 4 which is required to test for dalapon. Sample information shown below was taken by Travis County Municipal Utility District 4.

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

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

NOTE: Barton Creek Water Supply Corporation purchases water from Travis County Municipal Utility District 4 which is required to test for dalapon. Sample information shown below was taken by Travis County Municipal Utility District 4.

Date Lab ID Result
2014-06-25AC58081ND
2015-09-16AD07324ND
2015-12-03AD15521ND
2015-12-03AD15386ND
2016-03-09AD27873ND
2016-03-09AD28009ND
2016-03-09AD28010ND
2016-06-15AD40733ND
2016-06-15AD40815ND
2016-09-07AD48144ND
2016-09-07AD48214ND
2016-10-31AD55470ND
2017-01-30AD67489ND
2017-05-02AD82132ND
2017-08-10AD92731ND
2017-10-30AE02643ND
2018-02-15AE14045ND
2018-05-14AE26102ND
2018-08-13AE36881ND
2018-08-22AE38109ND
2018-11-19AE46403ND
2018-11-19AE46406ND
2019-02-14AE54556ND
2019-02-14AE54557ND
2019-02-14AE54667ND
2019-02-14AE54666ND
2019-05-28AE68211ND
2019-05-28AE68213ND
2019-08-20AE79542ND
2019-08-20AE79546ND
2019-11-25AE90380ND
2019-11-25AE90373ND