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EWG's Tap Water Database — 2019 UPDATE

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Aluminum

City of Houston

Aluminum is a metal released from metal refineries and mining operations. Too much aluminum exposure can impair children's brain development.

 

108

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201283.1 ppb52ND - 391.0 ppb
201381.7 ppb127ND - 658.0 ppb
201449.7 ppb182ND - 863.0 ppb
201532.9 ppb173ND - 444.0 ppb
201667.3 ppb292ND - 1,920.0 ppb
201748.9 ppb271ND - 1,320.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for aluminum was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-31AB79460391.0 ppb
2012-02-01AB7970024.3 ppb
2012-04-10AB86381ND
2012-05-23AB90843ND
2012-07-24AB96031ND
2013-02-25AC11513658.0 ppb
2013-03-11AC12855ND
2013-06-13AC2198161.0 ppb
2013-06-13AC2198068.9 ppb
2013-08-08AC2716258.1 ppb
2013-08-08AC27158ND
2013-08-08AC2716135.3 ppb
2013-08-08AC2715732.9 ppb
2013-08-08AC2716066.2 ppb
2013-09-24AC31092ND
2013-09-25AC31269ND
2013-10-29AC33587ND
2014-02-03AC41009ND
2014-03-14AC47093ND
2014-03-14AC47094863.0 ppb
2014-03-14AC47095ND
2014-04-16AC50780ND
2014-04-16AC50781ND
2014-04-17AC51021ND
2014-06-03AC55768ND
2014-06-03AC55769ND
2014-07-15AC59675ND
2014-07-15AC5967432.4 ppb
2014-07-16AC59810ND
2014-08-14AC63644ND
2014-10-08AC69151ND
2014-10-09AC69343ND
2014-10-09AC69342ND
2014-12-18AC75421ND
2014-12-18AC75424ND
2015-03-04AC82828444.0 ppb
2015-03-05AC82837ND
2015-06-04AC94569ND
2015-06-04AC94568ND
2015-06-04AC94567ND
2015-06-04AC94566ND
2015-06-04AC94565ND
2015-07-21AD00317ND
2015-07-21AD00315ND
2015-07-21AD00316ND
2015-07-21AD00322ND
2015-07-21AD00320ND
2015-09-17AD0749964.7 ppb
2015-10-22AD11442ND
2015-10-22AD11445ND
2015-10-22AD11444ND
2015-11-12AD1330050.6 ppb
2016-02-18AD24198ND
2016-02-18AD24206ND
2016-02-18AD24189ND
2016-02-18AD24207ND
2016-02-18AD24197ND
2016-02-18AD24205ND
2016-03-03AD26825ND
2016-03-16AD28983ND
2016-03-16AD289791,920.0 ppb
2016-03-17AD29296ND
2016-03-17AD29295ND
2016-03-23AD30057ND
2016-03-23AD30059ND
2016-03-23AD30063ND
2016-03-23AD30058ND
2016-06-08AD39687ND
2016-06-08AD39686ND
2016-06-16AD40881ND
2016-06-16AD40876ND
2016-09-20AD50273ND
2016-09-20AD50274ND
2016-09-21AD5063130.7 ppb
2016-10-06AD52620ND
2016-10-06AD52621ND
2016-10-06AD52624ND
2016-11-18AD58725ND
2016-11-21AD58729ND
2016-11-21AD58730ND
2016-11-21AD58728ND
2017-01-26AD67045ND
2017-01-26AD67054ND
2017-02-28AD72383ND
2017-02-28AD723811,320.0 ppb
2017-03-01AD72708ND
2017-03-01AD72707ND
2017-03-02AD73025ND
2017-03-02AD73018ND
2017-03-28AD77082ND
2017-03-28AD77083ND
2017-03-28AD77081ND
2017-03-28AD77080ND
2017-03-29AD77389ND
2017-03-29AD77385ND
2017-04-26AD81106ND
2017-04-27AD81406ND
2017-04-27AD81407ND
2017-07-06AD88418ND
2017-07-06AD88419ND
2017-07-06AD88420ND
2017-07-25AD90485ND
2017-09-11AD95398ND
2017-09-11AD95394ND
2017-09-26AD97954ND
2017-09-26AD97959ND
2017-09-26AD97955ND
2017-11-07AE03784ND