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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Phoenix

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.

 

343

Samples

1

Samples exceeding legal limit (MCL)

331

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20125.04 ppb6153ND - 10.4 ppb
20135.44 ppb56561.000 ppb - 7.50 ppb
20145.54 ppb5958ND - 8.20 ppb
20155.66 ppb5352ND - 9.20 ppb
20165.49 ppb5655ND - 9.10 ppb
20175.33 ppb5857ND - 8.30 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
2012-01-0320120001967.60 ppb
2012-01-0320120002096.50 ppb
2012-01-032012000419ND
2012-01-032012000421ND
2012-01-042010236-071.000 ppb
2012-01-042010248-02ND
2012-01-0420120005326.20 ppb
2012-01-092012001235ND
2012-01-1020120018553.00 ppb
2012-01-1020120018746.60 ppb
2012-01-1120120021245.70 ppb
2012-01-1120120021286.30 ppb
2012-01-1220120021305.70 ppb
2012-01-1220120021455.00 ppb
2012-01-1720120027155.10 ppb
2012-01-1720120027186.50 ppb
2012-01-1820120027214.20 ppb
2012-01-2420120049816.10 ppb
2012-01-2420120049938.50 ppb
2012-01-2520120050294.70 ppb
2012-04-0320120208187.00 ppb
2012-04-0320120208208.40 ppb
2012-04-0420120212457.30 ppb
2012-04-0420120212475.10 ppb
2012-04-0520120215095.20 ppb
2012-04-0520120215124.70 ppb
2012-04-1020120224745.80 ppb
2012-04-1020120224775.50 ppb
2012-04-1220120230064.70 ppb
2012-04-1220120230076.20 ppb
2012-04-1720120240795.90 ppb
2012-04-17201202408110.4 ppb
2012-04-1920120246932.40 ppb
2012-04-1920120246964.90 ppb
2012-07-1020120446496.30 ppb
2012-07-1020120446524.70 ppb
2012-07-112012045054ND
2012-07-1120120450586.00 ppb
2012-07-1720120464725.80 ppb
2012-07-1720120464787.20 ppb
2012-07-1820120469176.80 ppb
2012-07-1820120469186.80 ppb
2012-07-2420120482385.80 ppb
2012-07-2420120482396.80 ppb
2012-07-2520120486226.10 ppb
2012-07-2620120487595.40 ppb
2012-08-0120120501665.20 ppb
2012-10-0220120652405.20 ppb
2012-10-022012065243ND
2012-10-0320120655327.00 ppb
2012-10-0320120655347.00 ppb
2012-10-1120120676274.50 ppb
2012-10-1120120676296.00 ppb
2012-10-2320120703465.30 ppb
2012-10-232012070347ND
2012-10-2420120707795.90 ppb
2012-10-252012071121ND
2012-10-2520120711235.80 ppb
2012-10-3020120719926.20 ppb
2012-11-0720120737774.30 ppb
2012-11-1620120759775.40 ppb
2013-01-023010074-011.000 ppb
2013-01-0820130009156.10 ppb
2013-01-0820130009306.40 ppb
2013-01-0920130009515.10 ppb
2013-01-0920130009556.30 ppb
2013-01-1020130009604.60 ppb
2013-01-1020130009636.20 ppb
2013-01-1520130022792.70 ppb
2013-01-1620130022765.40 ppb
2013-01-2220130040206.00 ppb
2013-01-2220130040225.10 ppb
2013-01-2320130041036.50 ppb
2013-02-0520130066965.10 ppb
2013-02-0520130067015.20 ppb
2013-02-2020130096975.50 ppb
2013-04-0220130195935.60 ppb
2013-04-0320130195916.60 ppb
2013-04-0920130223734.60 ppb
2013-04-0920130223755.20 ppb
2013-04-1020130215776.50 ppb
2013-04-1020130215814.40 ppb
2013-04-1620130233745.70 ppb
2013-04-1620130233865.60 ppb
2013-04-1720130234016.20 ppb
2013-04-1720130234062.50 ppb
2013-04-2320130252926.10 ppb
2013-04-2320130252957.50 ppb
2013-04-2420130253876.50 ppb
2013-07-02201130416345.30 ppb
2013-07-0920130432164.70 ppb
2013-07-0920130432182.60 ppb
2013-07-1020130435637.50 ppb
2013-07-1020130435656.40 ppb
2013-07-1620130446456.20 ppb
2013-07-1720130446496.00 ppb
2013-07-1720130446524.90 ppb
2013-07-2320130455975.20 ppb
2013-07-2320130455995.90 ppb
2013-07-2420130456975.40 ppb
2013-07-3120130479633.20 ppb
2013-08-0120130488995.80 ppb
2013-09-1220130584516.30 ppb
2013-10-0720130635296.90 ppb
2013-10-0720130635303.30 ppb
2013-10-0820130635476.70 ppb
2013-10-0820130635544.80 ppb
2013-10-0920130636012.80 ppb
2013-10-2120130668866.50 ppb
2013-10-2120130669086.60 ppb
2013-10-2220130668856.40 ppb
2013-10-2220130669016.10 ppb
2013-10-2320130683666.50 ppb
2013-10-2320130683676.50 ppb
2013-10-2420130683696.20 ppb
2013-11-1320130731684.40 ppb
2013-11-1320130731725.40 ppb
2014-01-0620130811805.00 ppb
2014-01-064010287-01I1.000 ppb
2014-01-0720130813724.70 ppb
2014-01-0720130813776.50 ppb
2014-01-1420140009126.70 ppb
2014-01-1420140009406.50 ppb
2014-01-152014001121ND
2014-01-1520140015353.10 ppb
2014-01-1620140011357.10 ppb
2014-01-1620140014076.20 ppb
2014-01-2120140031802.90 ppb
2014-01-2120140031966.60 ppb
2014-01-2220140032133.40 ppb
2014-01-2320140032183.40 ppb
2014-01-2320140032246.30 ppb
2014-02-1920140095635.70 ppb
2014-02-2620140096924.00 ppb
2014-04-0120140185695.70 ppb
2014-04-0120140185936.20 ppb
2014-04-0220140186105.00 ppb
2014-04-0320140186126.00 ppb
2014-04-0320140187597.10 ppb
2014-04-0720140200575.20 ppb
2014-04-0820140205796.20 ppb
2014-04-0820140205816.20 ppb
2014-04-0920140206415.90 ppb
2014-04-1420140218206.00 ppb
2014-04-1620140205806.80 ppb
2014-04-2120140250414.80 ppb
2014-05-07377108-023.90 ppb
2014-07-0120140405425.60 ppb
2014-07-0120140405565.90 ppb
2014-07-0220140406116.70 ppb
2014-07-0220140406285.50 ppb
2014-07-0320140407337.80 ppb
2014-07-0320140407345.80 ppb
2014-07-0820140419246.70 ppb
2014-07-0920140419025.90 ppb
2014-07-0920140419362.80 ppb
2014-07-1520140431716.20 ppb
2014-07-1520140432205.60 ppb
2014-07-1620140435757.50 ppb
2014-07-2220140452867.20 ppb
2014-07-2220140453006.70 ppb
2014-08-0520140495843.20 ppb
2014-10-0720140642885.70 ppb
2014-10-0720140642915.20 ppb
2014-10-0720140642947.00 ppb
2014-10-0820140642976.70 ppb
2014-10-0820140643005.80 ppb
2014-10-1420140644197.00 ppb
2014-10-1420140644225.80 ppb
2014-10-1520140644276.40 ppb
2014-10-1620140646655.70 ppb
2014-10-1620140646663.00 ppb
2014-10-2920140646866.40 ppb
2014-10-2920140647067.80 ppb
2014-11-0720140727658.20 ppb
2014-11-1220140727602.90 ppb
2015-01-0620140835554.50 ppb
2015-01-0620140835594.90 ppb
2015-01-0720140841915.20 ppb
2015-01-07201501070258IND
2015-01-0720140841965.40 ppb
2015-01-1320140839715.60 ppb
2015-01-1320140839755.60 ppb
2015-01-1420140840784.90 ppb
2015-01-1520140841503.00 ppb
2015-01-1520140841602.70 ppb
2015-01-2120150018695.10 ppb
2015-01-2820150021876.30 ppb
2015-02-0320150019003.60 ppb
2015-02-1020150073607.30 ppb
2015-04-0720150207586.50 ppb
2015-04-0720150207925.90 ppb
2015-04-0820150208266.30 ppb
2015-04-1420150219027.30 ppb
2015-04-1420150219056.50 ppb
2015-04-1520150219097.40 ppb
2015-04-1520150219126.90 ppb
2015-04-1620150219453.40 ppb
2015-04-1620150219506.40 ppb
2015-04-2120150219659.20 ppb
2015-04-2220150208315.20 ppb
2015-04-2220150219695.00 ppb
2015-05-0520150302226.90 ppb
2015-07-0120150428785.90 ppb
2015-07-0720150426037.50 ppb
2015-07-0720150426066.20 ppb
2015-07-0820150426116.30 ppb
2015-07-1520150454866.00 ppb
2015-07-1520150454905.40 ppb
2015-07-1620150454946.80 ppb
2015-07-1620150454976.50 ppb
2015-07-2120150468793.20 ppb
2015-07-2120150468826.10 ppb
2015-07-2220150469366.00 ppb
2015-07-2220150469516.10 ppb
2015-08-0420150503087.50 ppb
2015-10-0120150652555.60 ppb
2015-10-0120150652568.30 ppb
2015-10-0620150653020.700 ppb
2015-10-0620150653126.50 ppb
2015-10-0720150668885.50 ppb
2015-10-0720150668896.40 ppb
2015-10-1320150668996.50 ppb
2015-10-1320150669003.00 ppb
2015-10-1420150653218.00 ppb
2015-10-2020150688546.60 ppb
2015-10-2020150688555.40 ppb
2015-10-2120150688585.40 ppb
2015-10-2120150688595.60 ppb
2016-01-0520150866456.80 ppb
2016-01-06201601060265IND
2016-01-1220160014474.30 ppb
2016-01-1220160014617.60 ppb
2016-01-1320160016646.70 ppb
2016-01-1320160016856.10 ppb
2016-01-1420160017623.20 ppb
2016-01-1920160025255.80 ppb
2016-01-2020160027346.20 ppb
2016-01-2120160027626.30 ppb
2016-02-0920160025397.00 ppb
2016-02-1720160096285.00 ppb
2016-02-1720160096646.80 ppb
2016-02-1820160096376.10 ppb
2016-04-1220160218015.30 ppb
2016-04-1320160218117.20 ppb
2016-04-1320160218146.60 ppb
2016-04-1920160243868.60 ppb
2016-04-1920160243899.10 ppb
2016-04-2020160244075.00 ppb
2016-04-2020160244103.70 ppb
2016-04-2120160244135.80 ppb
2016-04-2120160244166.20 ppb
2016-04-2720160255256.00 ppb
2016-04-2720160255303.60 ppb
2016-05-1720160302616.70 ppb
2016-05-1820160304866.20 ppb
2016-05-1820160304894.50 ppb
2016-07-0520160418317.00 ppb
2016-07-0520160418346.50 ppb
2016-07-0620160418836.40 ppb
2016-07-0620160418863.70 ppb
2016-07-1220160447245.80 ppb
2016-07-1220160447275.30 ppb
2016-07-1320160447415.30 ppb
2016-07-1320160447444.00 ppb
2016-07-1920160455512.50 ppb
2016-07-2020160455745.40 ppb
2016-07-2020160455774.00 ppb
2016-08-1720160538325.50 ppb
2016-08-1820160549193.90 ppb
2016-08-3020160564686.50 ppb
2016-10-0420160646853.80 ppb
2016-10-0420160656095.90 ppb
2016-10-0520160649816.70 ppb
2016-10-0520160649846.20 ppb
2016-10-1120160667805.40 ppb
2016-10-1120160667834.40 ppb
2016-10-1220160668445.00 ppb
2016-10-1220160668865.90 ppb
2016-10-1820160688385.60 ppb
2016-10-1920160688414.30 ppb
2016-10-1920160688444.30 ppb
2016-10-2620160702956.20 ppb
2016-11-0820160735946.70 ppb
2016-11-2220160778323.10 ppb
2017-01-0420160868576.20 ppb
2017-01-0420160872335.50 ppb
2017-01-04201701040662IND
2017-01-1020170016903.80 ppb
2017-01-1020170017065.80 ppb
2017-01-1120170018563.60 ppb
2017-01-1720170023996.70 ppb
2017-01-1720170024024.80 ppb
2017-01-1820170024234.50 ppb
2017-01-1820170024363.80 ppb
2017-01-2520170043465.60 ppb
2017-01-2520170043516.00 ppb
2017-02-0120170065467.20 ppb
2017-02-0820170087496.20 ppb
2017-04-0420170244517.30 ppb
2017-04-0420170244547.60 ppb
2017-04-1120170268476.60 ppb
2017-04-1120170268504.40 ppb
2017-04-1220170268537.40 ppb
2017-04-1220170283315.50 ppb
2017-04-1320170268595.50 ppb
2017-04-1820170293822.80 ppb
2017-04-1820170305213.50 ppb
2017-04-1920170293876.00 ppb
2017-04-1920170293923.80 ppb
2017-04-2020170293996.60 ppb
2017-04-2020170294024.20 ppb
2017-04-2720170317255.40 ppb
2017-04-2720170317384.60 ppb
2017-07-0520170509704.40 ppb
2017-07-1120170524857.00 ppb
2017-07-1120170524974.80 ppb
2017-07-1220170525156.00 ppb
2017-07-1220170525294.20 ppb
2017-07-1820170548787.00 ppb
2017-07-1920170549234.90 ppb
2017-07-1920170549275.80 ppb
2017-07-2620170570966.90 ppb
2017-07-2720170570665.10 ppb
2017-07-2720170570783.50 ppb
2017-08-0120170589477.40 ppb
2017-08-0120170589595.10 ppb
2017-08-0220170590963.30 ppb
2017-08-0320170600868.30 ppb
2017-10-0420170757026.90 ppb
2017-10-0920170775143.70 ppb
2017-10-1020170778907.30 ppb
2017-10-1020170779087.10 ppb
2017-10-1120170779484.50 ppb
2017-10-1120170779514.90 ppb
2017-10-1220170779056.80 ppb
2017-10-1220170779825.90 ppb
2017-10-1720170793276.40 ppb
2017-10-1720170793303.30 ppb
2017-10-1820170793436.10 ppb
2017-10-1820170793484.80 ppb
2017-10-1920170793533.20 ppb
2017-10-2520170813733.60 ppb