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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Mesa

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

195

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20128.44 ppb3130ND - 18.0 ppb
20135.29 ppb121108ND - 22.0 ppb
20140.716 ppb86ND - 3.10 ppb
20156.30 ppb3229ND - 19.4 ppb
201611.5 ppb21ND - 23.0 ppb
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2012-04-09120401356.00 ppb
2012-04-16120401446.00 ppb
2012-05-07201205240371I12.0 ppb
2012-05-08120401459.00 ppb
2012-05-08201205240373I8.70 ppb
2012-08-06120707733.00 ppb
2012-08-061207077615.0 ppb
2012-08-061207078214.0 ppb
2012-08-071207077510.00 ppb
2012-08-081207077412.0 ppb
2012-08-081207078413.0 ppb
2012-08-08120707879.00 ppb
2012-08-13120707144.00 ppb
2012-08-13120707338.00 ppb
2012-08-13120707355.00 ppb
2012-08-14120707156.00 ppb
2012-08-1412070732I3.00 ppb
2012-08-14120707367.00 ppb
2012-08-15120707164.00 ppb
2012-08-15120707343.00 ppb
2012-08-15120707712.00 ppb
2012-08-221207077812.0 ppb
2012-08-22120707836.00 ppb
2012-08-221207078610.00 ppb
2012-08-27120707726.00 ppb
2012-08-271207077716.0 ppb
2012-08-271207077915.0 ppb
2012-08-281207078114.0 ppb
2012-08-281207078518.0 ppb
2012-09-24120707805.00 ppb
2012-11-2012110619ND
2013-01-15201301160556AM3.20 ppb
2013-01-15201301160548AM2.00 ppb
2013-01-15201301160554AM4.10 ppb
2013-01-16201301160558AM2.40 ppb
2013-01-16201301160560AMND
2013-01-16201301160566AM1.70 ppb
2013-01-16201301160562AM2.90 ppb
2013-01-16201301160564AM1.90 ppb
2013-01-22201301240174AM3.10 ppb
2013-01-22201301240176AMND
2013-01-22201301240152AM3.20 ppb
2013-01-23201301240195AM1.70 ppb
2013-01-23201301240197AM1.000 ppb
2013-01-30201301310433AM6.10 ppb
2013-01-30201301310431AM1.000 ppb
2013-02-12201302140551AM7.20 ppb
2013-02-12201302140549AM1.30 ppb
2013-02-12201302140542AM6.30 ppb
2013-02-12201302140544AM8.90 ppb
2013-02-13201302140538AM0.290 ppb
2013-02-13201302140540AM3.70 ppb
2013-02-13201302140535AM7.40 ppb
2013-02-13201302140531AM2.50 ppb
2013-02-13201302140529AM3.80 ppb
2013-02-13201302140533AM4.30 ppb
2013-02-19201302200371AM9.40 ppb
2013-02-19201302200375AM8.50 ppb
2013-02-19201302200373AM8.00 ppb
2013-02-26201302260119AM7.80 ppb
2013-04-08201304100491AMND
2013-04-09201304100493AM0.620 ppb
2013-04-09201304100477AM2.30 ppb
2013-04-09201304100479AMND
2013-04-09201304100481AMND
2013-04-10201304110552AM9.00 ppb
2013-04-10201304110554AM6.00 ppb
2013-04-10201304110546AM4.60 ppb
2013-04-10201304110542AM9.60 ppb
2013-04-10201304110540AM12.0 ppb
2013-04-10201304110544AM9.30 ppb
2013-04-16201304170691AM2.20 ppb
2013-04-17201304170697AMND
2013-04-17201304170699AMND
2013-04-17201304170701AM2.70 ppb
2013-04-17201304170695AMND
2013-05-09201305100040AM17.0 ppb
2013-05-09201305100042AM21.0 ppb
2013-05-09201305100038AM17.0 ppb
2013-05-09201305100044AM12.0 ppb
2013-05-14201305150463AM1.60 ppb
2013-05-14201305150465AM3.50 ppb
2013-05-15201305150520AM2.10 ppb
2013-05-15201305150518AM15.0 ppb
2013-05-20201305200188AM10.00 ppb
2013-05-20201305200190AM8.70 ppb
2013-05-20201305200068AM4.20 ppb
2013-05-20201305200127AM11.0 ppb
2013-05-29201305290453AM11.0 ppb
2013-05-29201305290411AM6.30 ppb
2013-07-09201307100757AM0.300 ppb
2013-07-09201307100755AM7.30 ppb
2013-07-10201307100761AM0.270 ppb
2013-07-16130702784.00 ppb
2013-07-23201307240533AM0.260 ppb
2013-07-23201307240535AM5.90 ppb
2013-07-23201307240531AM0.240 ppb
2013-07-24201307240537AM5.30 ppb
2013-07-24201307240544AM5.70 ppb
2013-08-05201308070778AMND
2013-08-05201308070622AM4.20 ppb
2013-08-05201308070618AM2.90 ppb
2013-08-05201308070620AM4.50 ppb
2013-08-05201308070624AM1.20 ppb
2013-08-06201308070601AM5.50 ppb
2013-08-06201308070603AM2.80 ppb
2013-08-06201308070586AM5.40 ppb
2013-08-06201308070588AM7.00 ppb
2013-08-06201308070584AM6.10 ppb
2013-08-07201308070605AM2.70 ppb
2013-08-07201308070590AM4.80 ppb
2013-08-12201308130444AM0.210 ppb
2013-08-12201308130442AM1.40 ppb
2013-08-12201308130434AM1.60 ppb
2013-08-12201308130430AM2.40 ppb
2013-08-12201308130432AM1.60 ppb
2013-08-13201308140060AM8.70 ppb
2013-08-13201308140062AM4.90 ppb
2013-08-14201308140418AM8.60 ppb
2013-08-14201308140416AM1.50 ppb
2013-08-14201308140394AM2.60 ppb
2013-08-14201308140392AM4.20 ppb
2013-10-08201310080650AM5.70 ppb
2013-10-08201310080652AMND
2013-10-08201310080610AM14.0 ppb
2013-10-08201310080612AM12.0 ppb
2013-10-08201310080614AM18.0 ppb
2013-10-08201310080616AM18.0 ppb
2013-10-09201310090517AM8.40 ppb
2013-10-09201310090515AM1.30 ppb
2013-10-09201310090511AM2.50 ppb
2013-10-09201310090513AM10.00 ppb
2013-10-1413100495ND
2013-10-15201310150507AM3.40 ppb
2013-10-15201310150505AMND
2013-10-15201310150503AMND
2013-10-16201310160477AM3.80 ppb
2013-10-16201310160475AM0.290 ppb
2013-10-31201310310439AM1.20 ppb
2013-11-05201311070309AM6.30 ppb
2013-11-05201311070311AM0.330 ppb
2013-11-05201311050403AM5.10 ppb
2013-11-05201311050401AM13.0 ppb
2013-11-06201311070313AM7.50 ppb
2013-11-06201311070298AM22.0 ppb
2013-11-06201311070294AM20.0 ppb
2013-11-06201311070300AM11.0 ppb
2013-11-06201311070296AM16.0 ppb
2013-11-12201311130338AM3.40 ppb
2013-11-12201311130336AM4.40 ppb
2013-11-13201311140713AM5.80 ppb
2013-11-20201311210516AM0.220 ppb
2014-01-23201401230427AMND
2014-03-25201403250421AM3.10 ppb
2014-03-25201403250419AM0.210 ppb
2014-06-17201406180491AM0.290 ppb
2014-07-15201407160688AM0.300 ppb
2014-09-02201409020219AM0.900 ppb
2014-09-02201409020217AM0.930 ppb
2014-10-0814100297ND
2015-01-21201501220206AM0.610 ppb
2015-01-21201501220204AM0.350 ppb
2015-04-0715040249ND
2015-04-07150402725.53 ppb
2015-04-07150402738.81 ppb
2015-04-14150404004.86 ppb
2015-04-211504060619.4 ppb
2015-04-28150407685.64 ppb
2015-04-29150407711.69 ppb
2015-04-29150407721.50 ppb
2015-07-061507007316.2 ppb
2015-07-061507007417.8 ppb
2015-07-06150700768.21 ppb
2015-07-06150700777.04 ppb
2015-07-071507011715.2 ppb
2015-07-0715070119I11.8 ppb
2015-07-0715070120IOC10.3 ppb
2015-07-1315070247I1.85 ppb
2015-07-13150702495.78 ppb
2015-07-13150702502.15 ppb
2015-07-131507025114.6 ppb
2015-07-1415070252I4.24 ppb
2015-07-14150702532.32 ppb
2015-07-14150702545.43 ppb
2015-07-141507025515.0 ppb
2015-07-20150703915.33 ppb
2015-07-21150704473.52 ppb
2015-07-21150704483.81 ppb
2015-07-21150704491.26 ppb
2015-07-21150704501.40 ppb
2015-07-2115070451ND
2015-07-2715070541ND
2016-06-0816060165I23.0 ppb
2016-10-0416100039ND
2017-10-1017100401ND