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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Scottsdale

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

147

Samples

0

Samples exceeding legal limit (MCL)

144

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.20 ppb2120ND - 9.60 ppb
20132.71 ppb2221ND - 6.40 ppb
20143.71 ppb27271.10 ppb - 6.40 ppb
20153.25 ppb25251.000 ppb - 6.30 ppb
20162.87 ppb2322ND - 7.20 ppb
20174.18 ppb29291.20 ppb - 8.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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 cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-07AB296911.80 ppb
2012-03-07AB296936.70 ppb
2012-03-13AB298042.00 ppb
2012-03-13AB298052.10 ppb
2012-03-27AB300944.00 ppb
2012-04-09AB303863.40 ppb
2012-04-09AB303875.50 ppb
2012-04-10AB304259.60 ppb
2012-05-31AB313983.10 ppb
2012-05-31AB314001.90 ppb
2012-06-19AB318672.00 ppb
2012-07-31AB328705.30 ppb
2012-09-12AB339921.10 ppb
2012-09-12AB339931.90 ppb
2012-09-12AB339941.70 ppb
2012-09-24AB343271.70 ppb
2012-10-30AB35234I5.20 ppb
2012-10-30AB352442.70 ppb
2012-11-15AB356753.90 ppb
2012-11-29AB358941.70 ppb
2012-12-21AB36393ND
2013-01-08AB36647I5.50 ppb
2013-01-18AB36918I1.30 ppb
2013-02-27AB37658I3.60 ppb
2013-03-12AB37901I1.20 ppb
2013-03-18AB38006IND
2013-05-29AB392776.40 ppb
2013-06-03AB393581.80 ppb
2013-06-03AB393591.80 ppb
2013-06-03AB393601.80 ppb
2013-06-03AB393841.90 ppb
2013-06-04AB394102.60 ppb
2013-06-20AB397765.90 ppb
2013-07-11AB402484.10 ppb
2013-08-20AB413404.00 ppb
2013-08-20AB413432.30 ppb
2013-08-20AB413442.50 ppb
2013-09-04AB417972.10 ppb
2013-11-06AB436185.50 ppb
2013-11-11AB437251.30 ppb
2013-11-11AB437261.40 ppb
2013-11-11AB437271.30 ppb
2013-11-21AB440191.30 ppb
2014-02-05AB45659I2.50 ppb
2014-02-05AB45660I3.90 ppb
2014-02-05AB45661I5.20 ppb
2014-02-05AB45662I1.10 ppb
2014-02-11AB45852I6.40 ppb
2014-02-12AB45865I4.60 ppb
2014-02-13AB45912I5.80 ppb
2014-02-13AB45913I3.30 ppb
2014-03-13AB46644I6.40 ppb
2014-04-02AB470826.00 ppb
2014-04-02AB470832.20 ppb
2014-05-19AB482451.40 ppb
2014-06-03AB485132.60 ppb
2014-06-11AB487402.60 ppb
2014-06-12AB487635.30 ppb
2014-08-05AB499092.80 ppb
2014-08-05AB499102.80 ppb
2014-08-05AB49916I4.90 ppb
2014-08-064080551-02T1.40 ppb
2014-08-14AB501845.80 ppb
2014-08-21AB503812.50 ppb
2014-08-27AB50551I4.40 ppb
2014-11-18AB526844.30 ppb
2014-12-04AB530614.00 ppb
2014-12-11AB532114.90 ppb
2014-12-16AB532791.50 ppb
2014-12-16AB532801.50 ppb
2015-01-13AB538303.50 ppb
2015-01-13AB538315.40 ppb
2015-01-26AB541806.30 ppb
2015-03-04AB55247I1.000 ppb
2015-03-04AB552584.20 ppb
2015-03-05AB552761.000 ppb
2015-04-20AB563882.80 ppb
2015-05-19AB570861.30 ppb
2015-05-19AB570905.20 ppb
2015-06-09AB575061.10 ppb
2015-06-09AB575071.10 ppb
2015-06-15AB575843.90 ppb
2015-06-30AB579123.80 ppb
2015-07-21AB585085.30 ppb
2015-07-22AB58586I5.10 ppb
2015-07-23AB585932.70 ppb
2015-07-28AB58723I3.60 ppb
2015-09-03AB598272.60 ppb
2015-09-10AB599842.70 ppb
2015-10-05AB605482.70 ppb
2015-11-11AB61680I4.60 ppb
2015-11-12AB617093.70 ppb
2015-11-19AB618651.20 ppb
2015-12-07AB62200I4.40 ppb
2015-12-10AB623122.10 ppb
2016-01-12AB62917J1.000 ppb
2016-02-10AB63646ND
2016-02-11AB636725.20 ppb
2016-03-07AB64246J4.80 ppb
2016-03-07AB64247J1.20 ppb
2016-03-22AB646921.60 ppb
2016-05-12AB660381.70 ppb
2016-06-09AB666607.20 ppb
2016-06-09AB666623.10 ppb
2016-06-09AB666671.90 ppb
2016-06-13AB667132.20 ppb
2016-06-13AB667141.80 ppb
2016-07-21AB67723I6.00 ppb
2016-08-01AB67955I3.20 ppb
2016-08-22AB68510I5.00 ppb
2016-08-31AB686762.50 ppb
2016-08-31AB68679I1.70 ppb
2016-09-22AB69265I2.50 ppb
2016-10-03AB695041.70 ppb
2016-12-06AB710612.30 ppb
2016-12-15AB713742.80 ppb
2016-12-15AB713752.70 ppb
2016-12-27AB715823.90 ppb
2017-01-23AB72209T6.80 ppb
2017-01-31AB72396T1.70 ppb
2017-01-31AB72398T4.40 ppb
2017-03-09AB73449T1.50 ppb
2017-03-09AB73450T1.50 ppb
2017-03-09AB73451T1.50 ppb
2017-03-13AB73529T6.10 ppb
2017-04-11AB742813.40 ppb
2017-04-18AZ744567.20 ppb
2017-05-03AB749524.80 ppb
2017-05-03AB749546.60 ppb
2017-05-08AB751261.60 ppb
2017-05-11AB752521.60 ppb
2017-05-25AB755601.20 ppb
2017-06-29AB765295.20 ppb
2017-06-29AB765304.60 ppb
2017-07-10AB767694.70 ppb
2017-07-10AB767703.80 ppb
2017-07-13AB769275.70 ppb
2017-07-31AB774821.60 ppb
2017-08-07AB777958.00 ppb
2017-08-14AB780253.20 ppb
2017-09-13AB789135.00 ppb
2017-10-02AB792477.20 ppb
2017-10-09AB795972.70 ppb
2017-10-10AB796274.70 ppb
2017-10-23AB800763.10 ppb
2017-11-01AB803426.60 ppb
2017-11-09AB806435.10 ppb