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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

City of South Houston

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

 

103

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND130ND
2013ND160ND
2014ND210ND
2015ND160ND
2016ND160ND
2017ND210ND

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
2012-02-06AB80238ND
2012-05-18AB90296ND
2012-05-18AB90309ND
2012-05-18AB90299ND
2012-05-18AB90295ND
2012-07-06AB94705ND
2012-07-06AB94687ND
2012-07-06AB94688ND
2012-07-06AB94704ND
2012-10-12AC03225ND
2012-10-12AC03237ND
2012-10-12AC03226ND
2012-10-12AC03238ND
2013-01-14AC07600ND
2013-01-14AC07594ND
2013-01-14AC07601ND
2013-01-14AC07595ND
2013-04-02AC15507ND
2013-04-02AC15497ND
2013-04-02AC15500ND
2013-04-02AC15503ND
2013-07-19AC25370ND
2013-07-19AC25375ND
2013-07-19AC25339ND
2013-07-19AC25376ND
2013-10-24AC33260ND
2013-10-24AC33253ND
2013-10-24AC33239ND
2013-10-24AC33238ND
2014-01-14AC38855ND
2014-01-14AC38861ND
2014-01-14AC38853ND
2014-01-14AC38856ND
2014-01-14AC38854ND
2014-02-14AC43091ND
2014-02-14AC43068ND
2014-02-14AC43070ND
2014-02-14AC43023ND
2014-04-07AC49612ND
2014-04-07AC49615ND
2014-04-07AC49582ND
2014-06-06AC56298ND
2014-08-11AC62901ND
2014-08-11AC62929ND
2014-08-11AC62900ND
2014-08-11AC62902ND
2014-11-24AC72786ND
2014-11-24AC72720ND
2014-11-24AC72782ND
2014-11-24AC72787ND
2015-01-21AC77202ND
2015-01-21AC77204ND
2015-01-21AC77209ND
2015-01-21AC77203ND
2015-06-12AC95899ND
2015-06-12AC95900ND
2015-06-12AC95927ND
2015-06-12AC95907ND
2015-07-20AD00121ND
2015-07-20AD00077ND
2015-07-20AD00105ND
2015-07-20AD00100ND
2015-10-06AD09590ND
2015-10-06AD09585ND
2015-10-06AD09592ND
2015-10-06AD09581ND
2016-01-14AD18165ND
2016-01-14AD18163ND
2016-01-14AD18164ND
2016-01-14AD18162ND
2016-04-08AD32541ND
2016-04-08AD32546ND
2016-04-08AD32528ND
2016-04-08AD32535ND
2016-07-11AD43515ND
2016-07-11AD43522ND
2016-07-11AD43516ND
2016-07-11AD43555ND
2016-10-07AD52794ND
2016-10-07AD52798ND
2016-10-07AD52796ND
2016-10-07AD52795ND
2017-01-06AD63703ND
2017-01-06AD63561ND
2017-01-06AD63560ND
2017-01-06AD63563ND
2017-01-06AD63562ND
2017-02-10AD70458ND
2017-03-01AD72858ND
2017-03-01AD72857ND
2017-03-01AD72856ND
2017-04-07AD78912ND
2017-04-07AD78911ND
2017-04-07AD78910ND
2017-04-07AD78913ND
2017-07-14AD89414ND
2017-07-14AD89417ND
2017-07-14AD89419ND
2017-07-14AD89415ND
2017-10-17AE01059ND
2017-10-17AE01056ND
2017-10-17AE01060ND
2017-10-17AE01071ND