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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Pearland

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

 

213

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND420ND
2015ND320ND
2016ND330ND
2017ND410ND
2018ND320ND
2019ND330ND

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
2014-02-21AC44260ND
2014-02-21AC44256ND
2014-02-21AC44261ND
2014-02-21AC44262ND
2014-02-21AC44257ND
2014-02-21AC44229ND
2014-02-21AC44259ND
2014-02-21AC44258ND
2014-04-02AC49059ND
2014-04-02AC49062ND
2014-04-02AC49057ND
2014-04-02AC49060ND
2014-04-02AC49099ND
2014-04-02AC49118ND
2014-04-02AC49102ND
2014-04-02AC49120ND
2014-04-02AC49098ND
2014-04-02AC49100ND
2014-04-02AC49101ND
2014-04-02AC49097ND
2014-04-03AC49294ND
2014-04-03AC49300ND
2014-04-03AC49292ND
2014-04-03AC49301ND
2014-04-03AC49299ND
2014-05-09AC53819ND
2014-07-01AC58602ND
2014-07-01AC58606ND
2014-07-01AC58618ND
2014-07-01AC58597ND
2014-07-01AC58598ND
2014-07-01AC58605ND
2014-07-01AC58630ND
2014-07-01AC58603ND
2014-11-19AC72450ND
2014-11-19AC72475ND
2014-11-19AC72448ND
2014-11-19AC72474ND
2014-11-19AC72473ND
2014-11-19AC72449ND
2014-11-19AC72451ND
2014-11-19AC72447ND
2015-02-25AC82068ND
2015-02-25AC82087ND
2015-02-25AC82066ND
2015-02-25AC82076ND
2015-02-25AC82071ND
2015-02-25AC82070ND
2015-02-25AC82069ND
2015-02-25AC82067ND
2015-04-14AC88088ND
2015-04-14AC88092ND
2015-04-14AC88094ND
2015-04-14AC88095ND
2015-04-14AC88089ND
2015-04-14AC88091ND
2015-04-14AC88084ND
2015-04-14AC88090ND
2015-07-13AC99064ND
2015-07-13AC99101ND
2015-07-13AC99065ND
2015-07-13AC99062ND
2015-07-13AC99061ND
2015-07-13AC99063ND
2015-07-13AC99102ND
2015-07-13AC99094ND
2015-11-06AD12958ND
2015-11-06AD12947ND
2015-11-06AD12948ND
2015-11-06AD12930ND
2015-11-06AD12949ND
2015-11-06AD12957ND
2015-11-06AD12950ND
2015-11-06AD12952ND
2016-03-08AD27528ND
2016-03-08AD27532ND
2016-03-08AD27529ND
2016-03-08AD27533ND
2016-03-08AD27530ND
2016-03-08AD27527ND
2016-03-08AD27525ND
2016-03-16AD29021ND
2016-05-25AD38361ND
2016-05-25AD38243ND
2016-05-25AD38237ND
2016-05-25AD38221ND
2016-05-25AD38238ND
2016-05-25AD38218ND
2016-05-25AD38266ND
2016-05-25AD38222ND
2016-05-25AD38239ND
2016-09-29AD51887ND
2016-09-29AD51892ND
2016-09-29AD51891ND
2016-09-29AD51885ND
2016-09-29AD51884ND
2016-09-29AD51886ND
2016-09-29AD51889ND
2016-09-29AD51888ND
2016-10-21AD54281ND
2016-10-21AD54282ND
2016-10-21AD54297ND
2016-10-21AD54289ND
2016-10-21AD54290ND
2016-10-21AD54296ND
2016-10-21AD54298ND
2016-10-21AD54295ND
2017-01-17AD65179ND
2017-01-17AD65177ND
2017-01-17AD65070ND
2017-01-17AD65076ND
2017-01-17AD65077ND
2017-01-17AD65066ND
2017-01-17AD65071ND
2017-01-17AD65075ND
2017-01-17AD65069ND
2017-01-17AD65072ND
2017-04-12AD79544ND
2017-04-12AD79545ND
2017-04-12AD79543ND
2017-04-12AD79421ND
2017-04-12AD79427ND
2017-04-12AD79422ND
2017-04-12AD79424ND
2017-04-12AD79426ND
2017-04-12AD79425ND
2017-04-12AD79423ND
2017-04-12AD79428ND
2017-07-18AD89779ND
2017-07-18AD89677ND
2017-07-18AD89683ND
2017-07-18AD89681ND
2017-07-18AD89678ND
2017-07-18AD89679ND
2017-07-18AD89684ND
2017-07-18AD89682ND
2017-07-18AD89680ND
2017-09-14AD96341ND
2017-09-14AD96350ND
2017-09-14AD96340ND
2017-10-18AE01318ND
2017-10-18AE01319ND
2017-10-18AE01315ND
2017-10-18AE01323ND
2017-10-18AE01322ND
2017-10-18AE01320ND
2017-10-18AE01317ND
2017-10-18AE01314ND
2018-03-07AE17247ND
2018-03-07AE17257ND
2018-03-07AE17255ND
2018-03-07AE17246ND
2018-03-07AE17245ND
2018-03-07AE17256ND
2018-03-07AE17239ND
2018-03-07AE17244ND
2018-04-03AE20985ND
2018-04-03AE20982ND
2018-04-03AE20980ND
2018-04-03AE20984ND
2018-04-03AE20986ND
2018-04-03AE20981ND
2018-04-03AE20983ND
2018-04-03AE20979ND
2018-08-13AE36618ND
2018-08-13AE36600ND
2018-08-13AE36602ND
2018-08-13AE36612ND
2018-08-13AE36608ND
2018-08-13AE36601ND
2018-08-13AE36609ND
2018-08-13AE36610ND
2018-10-18AE43902ND
2018-10-18AE43908ND
2018-10-18AE43909ND
2018-10-18AE43907ND
2018-10-18AE43906ND
2018-10-18AE43903ND
2018-10-18AE43904ND
2018-10-18AE43905ND
2019-01-29AE51881ND
2019-01-29AE51883ND
2019-01-29AE51892ND
2019-01-29AE51876ND
2019-01-29AE51880ND
2019-01-29AE51889ND
2019-01-29AE51890ND
2019-01-29AE51882ND
2019-04-23AE63341ND
2019-04-23AE63369ND
2019-04-23AE63366ND
2019-04-23AE63348ND
2019-04-23AE63343ND
2019-04-23AE63344ND
2019-04-23AE63342ND
2019-04-23AE63370ND
2019-05-28AE68276ND
2019-07-02AE73077ND
2019-07-02AE73067ND
2019-07-02AE73068ND
2019-07-02AE73102ND
2019-07-02AE73073ND
2019-07-02AE73075ND
2019-07-02AE73076ND
2019-07-10AE73891ND
2019-10-14AE86458ND
2019-10-14AE86460ND
2019-10-14AE86459ND
2019-10-14AE86461ND
2019-10-14AE86462ND
2019-10-14AE86468ND
2019-10-14AE86465ND
2019-10-14AE86442ND