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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Town of Gilbert

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.

 

109

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20127.29 ppb2821ND - 19.0 ppb
20135.55 ppb6256ND - 17.0 ppb
20140.680 ppb52ND - 1.70 ppb
201510.3 ppb3310.00 ppb - 11.0 ppb
20168.62 ppb10104.10 ppb - 12.0 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
2012-01-09PVA0475-01IND
2012-01-09PVA0476-015.30 ppb
2012-01-12PVA0814-0112.0 ppb
2012-01-12PVA0815-01ND
2012-01-17PVA1028-0111.0 ppb
2012-01-18PVA1137-0115.0 ppb
2012-01-19PVA1240-0116.0 ppb
2012-01-25PVA1556-0112.0 ppb
2012-02-13PVB0897-0111.0 ppb
2012-02-13PVB0898-019.50 ppb
2012-02-13PVB0899-0114.0 ppb
2012-02-28PVB1867-01B5.70 ppb
2012-03-01PVC0073-01B2.90 ppb
2012-03-15PVC1257-01I8.90 ppb
2012-03-27PVC1957-0114.0 ppb
2012-04-02PVD0064-01ND
2012-04-02PVD0073-01ND
2012-04-09PVD0611-01I7.00 ppb
2012-04-23PVD1652-017.60 ppb
2012-05-02PVE0219-01I8.80 ppb
2012-07-02PVG0062-01BND
2012-07-02PVG0068-01B1.000 ppb
2012-07-26PVG1876-019.10 ppb
2012-08-01PVH0103-0119.0 ppb
2012-08-28PVH2122-014.20 ppb
2012-10-01PVJ0070-01I10.00 ppb
2012-10-01PVJ0072-01IND
2012-12-20PVL1426-01IND
2013-04-22201304220123AM15.0 ppb
2013-04-22201304220125AM11.0 ppb
2013-04-22201304220108AM1.10 ppb
2013-04-22201304220121AM10.00 ppb
2013-04-22201304220119AM14.0 ppb
2013-04-22201304220110AM0.280 ppb
2013-04-22201304220127AM9.90 ppb
2013-04-22201304220129AM11.0 ppb
2013-04-23201304230211AM17.0 ppb
2013-04-23201304230215AM8.90 ppb
2013-04-23201304230219AM1.80 ppb
2013-04-23201304230217AM2.10 ppb
2013-04-23201304230228AM0.290 ppb
2013-04-23201304230221AM2.20 ppb
2013-04-23201304230223AM0.260 ppb
2013-04-23201304230225AM7.50 ppb
2013-04-23201304230213AM6.20 ppb
2013-04-24201304240157AM4.70 ppb
2013-04-24201304240161AM1.80 ppb
2013-04-24201304240165AM2.40 ppb
2013-04-24201304240167AM1.30 ppb
2013-04-24201304240169AM10.00 ppb
2013-04-24201304240159AM2.20 ppb
2013-04-25201304250480AM3.30 ppb
2013-04-25201304250478AM2.10 ppb
2013-04-25201304250476AM5.50 ppb
2013-04-25201304250474AM3.20 ppb
2013-05-09201305100052AM1.70 ppb
2013-07-25201307250327AM0.790 ppb
2013-07-25201307250329AM0.880 ppb
2013-07-25201307250333AM7.50 ppb
2013-07-25201307250331AMND
2013-07-29550-7634-1I16.0 ppb
2013-07-29550-7636-112.0 ppb
2013-07-30550-7713-1ND
2013-07-30550-7716-1I4.40 ppb
2013-07-31550-7810-1I7.50 ppb
2013-07-31550-7815-1I10.00 ppb
2013-08-07550-8302-1ND
2013-08-12550-8579-111.0 ppb
2013-08-13550-8672-113.0 ppb
2013-08-26550-9435-1IND
2013-10-14201310140284AM14.0 ppb
2013-10-14201310140276AM1.90 ppb
2013-10-14201310140288AM8.30 ppb
2013-10-14201310140282AM9.30 ppb
2013-10-14201310140280AM3.70 ppb
2013-10-14201310140278AMND
2013-10-14201310140290AM2.90 ppb
2013-10-14201310140292AM3.30 ppb
2013-10-14201310140294AMND
2013-10-14201310140286AM6.20 ppb
2013-10-15201310150527I6.00 ppb
2013-10-16201310160451AM13.0 ppb
2013-10-16201310160455AM8.20 ppb
2013-10-16201310160457AM4.30 ppb
2013-10-16201310160453AM4.10 ppb
2013-10-22201310220364I7.90 ppb
2013-10-23201310230754AM4.70 ppb
2013-10-23201310230758AM2.30 ppb
2013-10-23201310230760AM2.20 ppb
2013-10-23201310230756AM2.20 ppb
2014-01-09201401090391AM1.70 ppb
2014-01-09201401090389AM1.70 ppb
2014-01-21201401210282AMND
2014-01-21201401210278AMND
2014-01-27201401270086IND
2015-01-28201501280356I10.00 ppb
2015-06-15201506150309AM10.00 ppb
2015-12-13201512140112AM11.0 ppb
2016-01-12201601120223I9.30 ppb
2016-01-19201601190321I12.0 ppb
2016-01-26201601260298I8.30 ppb
2016-02-08201602080042I9.30 ppb
2016-02-08201602080053I4.10 ppb
2016-03-02201603020441I6.00 ppb
2016-03-23201603230453I7.60 ppb
2016-04-07201604070686I11.0 ppb
2016-04-19201604190185I6.60 ppb
2016-05-31201605310460I12.0 ppb
2017-01-042017010408151ND