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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Alvin

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND190ND
2015ND160ND
2016ND160ND
2017ND190ND
2018ND160ND
2019ND160ND

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
2014-02-10AC41984ND
2014-02-10AC42005ND
2014-02-10AC41989ND
2014-02-10AC41905ND
2014-02-10AC41899ND
2014-02-10AC41892ND
2014-02-10AC41898ND
2014-04-08AC49718ND
2014-04-08AC49728ND
2014-04-08AC49730ND
2014-04-08AC49729ND
2014-07-21AC60354ND
2014-07-21AC60355ND
2014-07-21AC60353ND
2014-07-21AC60358ND
2014-10-16AC69937ND
2014-10-16AC69939ND
2014-10-16AC69933ND
2014-10-16AC69938ND
2015-01-22AC77404ND
2015-01-22AC77411ND
2015-01-22AC77403ND
2015-01-22AC77424ND
2015-05-04AC90276ND
2015-05-04AC90242ND
2015-05-04AC90275ND
2015-05-04AC90274ND
2015-07-09AC98936ND
2015-07-09AC98933ND
2015-07-09AC98938ND
2015-07-09AC98935ND
2015-10-01AD09242ND
2015-10-01AD09240ND
2015-10-01AD09221ND
2015-10-01AD09222ND
2016-01-11AD17291ND
2016-01-11AD17294ND
2016-01-11AD17285ND
2016-01-11AD17282ND
2016-05-12AD36571ND
2016-05-12AD36573ND
2016-05-12AD36564ND
2016-05-12AD36569ND
2016-07-05AD42930ND
2016-07-05AD42931ND
2016-07-05AD42936ND
2016-07-05AD42933ND
2016-10-20AD54022ND
2016-10-20AD54028ND
2016-10-20AD54031ND
2016-10-20AD54023ND
2017-01-09AD63701ND
2017-01-09AD63705ND
2017-01-09AD63707ND
2017-01-09AD63559ND
2017-01-09AD63557ND
2017-01-09AD63558ND
2017-01-09AD63556ND
2017-04-11AD79162ND
2017-04-11AD79161ND
2017-04-11AD79160ND
2017-04-11AD79159ND
2017-07-11AD88834ND
2017-07-11AD88835ND
2017-07-11AD88832ND
2017-07-11AD88833ND
2017-10-02AD98771ND
2017-10-02AD98768ND
2017-10-02AD98772ND
2017-10-02AD98773ND
2018-02-20AE14416ND
2018-02-20AE14414ND
2018-02-20AE14413ND
2018-02-20AE14412ND
2018-05-15AE26359ND
2018-05-15AE26361ND
2018-05-15AE26379ND
2018-05-15AE26362ND
2018-07-26AE34781ND
2018-07-26AE34778ND
2018-07-26AE34780ND
2018-07-26AE34777ND
2018-10-04AE42682ND
2018-10-04AE42680ND
2018-10-04AE42681ND
2018-10-04AE42683ND
2019-02-25AE55616ND
2019-02-25AE55618ND
2019-02-25AE55611ND
2019-02-25AE55612ND
2019-04-16AE62526ND
2019-04-16AE62527ND
2019-04-16AE62508ND
2019-04-16AE62510ND
2019-07-22AE75228ND
2019-07-22AE75226ND
2019-07-22AE75227ND
2019-07-22AE75229ND
2019-10-23AE87364ND
2019-10-23AE87387ND
2019-10-23AE87403ND
2019-10-23AE87362ND