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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Corsicana

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.741 ppb220.533 ppb - 0.948 ppb
20140.353 ppb184ND - 3.10 ppb
20150.835 ppb220.820 ppb - 0.850 ppb
20160.625 ppb220.420 ppb - 0.830 ppb
20170.500 ppb21ND - 1.000 ppb

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
2013-07-08Q13033830260.948 ppb
2013-07-08Q13033830250.533 ppb
2014-04-144D15022-03ND
2014-04-144D15022-05ND
2014-04-144D15022-01ND
2014-04-144D15022-07ND
2014-05-15Q14165510033.10 ppb
2014-05-15Q14165510042.80 ppb
2014-06-034F04044-07ND
2014-06-034F04044-01ND
2014-06-034F04044-09ND
2014-06-034F04044-04ND
2014-09-034I04031-09ND
2014-09-034I04031-04ND
2014-09-034I04031-07ND
2014-09-034I04031-010.250 ppb
2014-12-024L03007-07ND
2014-12-024L03007-09ND
2014-12-024L03007-01ND
2014-12-024L03007-040.202 ppb
2015-01-28Q15034090040.850 ppb
2015-01-28Q15034090030.820 ppb
2016-02-02Q16044170040.420 ppb
2016-02-02Q16044170030.830 ppb
2017-01-17Q17020000011.000 ppb
2017-07-26Q1730737003ND