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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

City of Mesa

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

 

128

Samples

0

Samples exceeding legal limit (MCL)

128

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20135.97 ppb1201200.0310 ppb - 24.0 ppb
20140.673 ppb660.110 ppb - 3.30 ppb
20150.210 ppb220.130 ppb - 0.290 ppb
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) 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.

ppb = parts per billion

All test results

Date Lab ID Result
2013-01-15201301160548AM2.10 ppb
2013-01-15201301160554AM4.50 ppb
2013-01-16201301160560AM0.0460 ppb
2013-01-16201301160558AM2.40 ppb
2013-01-16201301160566AM1.80 ppb
2013-01-16201301160562AM2.80 ppb
2013-01-16201301160564AM1.70 ppb
2013-01-22201301240174AM3.50 ppb
2013-01-22201301240176AM0.0520 ppb
2013-01-22201301240172AM0.0310 ppb
2013-01-22201301240152AM3.40 ppb
2013-01-23201301240197AM0.890 ppb
2013-01-23201301240195AM1.70 ppb
2013-01-23201301240180AM2.00 ppb
2013-01-30201301310433AM6.40 ppb
2013-01-30201301310431AM0.200 ppb
2013-02-12201302140551AM7.20 ppb
2013-02-12201302140549AM1.20 ppb
2013-02-12201302140542AM7.00 ppb
2013-02-12201302140544AM9.50 ppb
2013-02-12201302140546AM7.00 ppb
2013-02-13201302140540AM4.00 ppb
2013-02-13201302140538AM0.160 ppb
2013-02-13201302140535AM8.00 ppb
2013-02-13201302140531AM2.80 ppb
2013-02-13201302140529AM4.00 ppb
2013-02-13201302140533AM4.40 ppb
2013-02-19201302200373AM10.00 ppb
2013-02-19201302200375AM11.0 ppb
2013-02-19201302200371AM13.0 ppb
2013-04-08201304100491AM4.20 ppb
2013-04-09201304100493AM2.20 ppb
2013-04-09201304100477AM2.10 ppb
2013-04-09201304100479AM20.0 ppb
2013-04-09201304100481AM14.0 ppb
2013-04-10201304110552AM9.60 ppb
2013-04-10201304110554AM6.00 ppb
2013-04-10201304110546AM4.70 ppb
2013-04-10201304110540AM13.0 ppb
2013-04-10201304110542AM10.00 ppb
2013-04-10201304110544AM6.80 ppb
2013-04-16201304170691AM2.20 ppb
2013-04-17201304170697AM0.470 ppb
2013-04-17201304170699AM0.0540 ppb
2013-04-17201304170701AM2.10 ppb
2013-04-17201304170695AM0.0370 ppb
2013-05-09201305100048AM8.60 ppb
2013-05-09201305100040AM20.0 ppb
2013-05-09201305100042AM24.0 ppb
2013-05-09201305100044AM13.0 ppb
2013-05-09201305100046AM12.0 ppb
2013-05-09201305100038AM18.0 ppb
2013-05-14201305150465AM3.10 ppb
2013-05-14201305150463AM1.30 ppb
2013-05-15201305150520AM1.80 ppb
2013-05-15201305150518AM6.20 ppb
2013-05-20201305200190AM11.0 ppb
2013-05-20201305200188AM12.0 ppb
2013-05-20201305200068AM3.60 ppb
2013-05-20201305200127AM14.0 ppb
2013-07-09201307100757AM0.0430 ppb
2013-07-09201307100755AM6.90 ppb
2013-07-10201307100759AM7.80 ppb
2013-07-10201307100761AM0.0380 ppb
2013-07-16201307170500AM1.20 ppb
2013-07-16201307170508AM5.20 ppb
2013-07-16201307170504AM3.20 ppb
2013-07-16201307170506AM3.40 ppb
2013-07-16201307170510AM4.80 ppb
2013-07-17201307170512AM1.30 ppb
2013-07-17201307170514AM0.150 ppb
2013-07-17201307170516AM2.60 ppb
2013-07-17201307170520AM1.80 ppb
2013-07-17201307170518AM1.80 ppb
2013-07-23201307240533AM0.0490 ppb
2013-07-23201307240531AM0.0320 ppb
2013-07-24201307240537AM4.70 ppb
2013-07-24201307240544AM4.60 ppb
2013-08-06201308070601AM5.10 ppb
2013-08-06201308070603AM2.50 ppb
2013-08-06201308070586AM5.50 ppb
2013-08-06201308070588AM6.60 ppb
2013-08-06201308070584AM5.20 ppb
2013-08-07201308070605AM5.50 ppb
2013-08-07201308070590AM5.60 ppb
2013-08-13201308140062AM5.20 ppb
2013-08-13201308140060AM10.00 ppb
2013-08-14201308140418AM9.50 ppb
2013-08-14201308140416AM1.30 ppb
2013-08-14201308140394AM2.50 ppb
2013-08-14201308140392AM4.20 ppb
2013-10-08201310080652AM0.0950 ppb
2013-10-08201310080650AM6.40 ppb
2013-10-08201310080610AM15.0 ppb
2013-10-08201310080612AM13.0 ppb
2013-10-08201310080614AM20.0 ppb
2013-10-08201310080616AM19.0 ppb
2013-10-09201310090515AM0.960 ppb
2013-10-09201310090517AM8.10 ppb
2013-10-09201310090511AM2.60 ppb
2013-10-09201310090513AM9.30 ppb
2013-10-15201310150507AM3.70 ppb
2013-10-15201310150505AM0.0550 ppb
2013-10-15201310150509AM1.50 ppb
2013-10-15201310150503AM0.0390 ppb
2013-10-16201310160477AM3.80 ppb
2013-10-16201310160475AM0.220 ppb
2013-11-05201311070309AM7.50 ppb
2013-11-05201311070311AM0.0390 ppb
2013-11-05201311050403AM4.00 ppb
2013-11-05201311050401AM14.0 ppb
2013-11-06201311070313AM8.80 ppb
2013-11-06201311070294AM22.0 ppb
2013-11-06201311070298AM24.0 ppb
2013-11-06201311070300AM12.0 ppb
2013-11-06201311070296AM19.0 ppb
2013-11-12201311130338AM3.10 ppb
2013-11-12201311130336AM4.10 ppb
2013-11-13201311140713AM6.10 ppb
2013-11-20201311210516AM0.240 ppb
2014-03-25201403250421AM3.30 ppb
2014-03-25201403250419AM0.220 ppb
2014-06-04201406040578AM0.160 ppb
2014-06-04201406040576AM0.130 ppb
2014-09-02201409020219AM0.120 ppb
2014-09-02201409020217AM0.110 ppb
2015-01-21201501220206AM0.290 ppb
2015-01-21201501220204AM0.130 ppb