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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Fort Bend County Municipal Utility District 106

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

 

42

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
2015ND20ND
2016ND40ND
2017ND20ND
2018ND160ND
2019ND180ND

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
2015-07-16AC99913ND
2015-07-16AC99916ND
2016-02-17AD24029ND
2016-02-17AD24028ND
2016-07-12AD43807ND
2016-07-12AD43805ND
2017-07-11AD88822ND
2017-07-11AD88821ND
2018-02-05AE12167ND
2018-02-05AE12185ND
2018-02-05AE12179ND
2018-02-05AE12183ND
2018-04-10AE21868ND
2018-04-10AE21855ND
2018-04-10AE21874ND
2018-04-10AE21876ND
2018-08-14AE36843ND
2018-08-14AE36841ND
2018-08-14AE36845ND
2018-08-14AE36844ND
2018-10-01AE42212ND
2018-10-01AE42206ND
2018-10-01AE42210ND
2018-10-01AE42205ND
2019-01-23AE50935ND
2019-01-23AE50927ND
2019-01-23AE50928ND
2019-01-23AE51022ND
2019-01-23AE51023ND
2019-03-08AE57797ND
2019-04-08AE61331ND
2019-04-08AE61363ND
2019-04-08AE61346ND
2019-04-08AE61337ND
2019-07-08AE73404ND
2019-07-08AE73415ND
2019-07-08AE73418ND
2019-07-08AE73414ND
2019-10-09AE86114ND
2019-10-09AE86110ND
2019-10-09AE86120ND
2019-10-09AE86100ND