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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

City of Odessa

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND20ND
20140.290 ppb54ND - 0.680 ppb
20150.260 ppb31ND - 0.780 ppb
2016ND10ND
2017N/A00N/A
2018ND10ND
2019ND10ND

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
2013-12-02A3K0227-01AND
2013-12-02A3K0227-06AND
2014-03-31A4B2107-01A0.280 ppb
2014-03-31A4B2107-05A0.240 ppb
2014-05-01Q14141800020.680 ppb
2014-06-16A4E1513-01A0.250 ppb
2014-06-16A4E1513-05AND
2015-01-26Q15026310010.780 ppb
2015-05-14A5C2315-01AND
2015-05-14A5C2315-03AND
2016-01-28Q1603965001ND
2018-05-08AE28122ND
2019-02-13Q1907007005ND