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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Town of Forest City

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
2012ND10ND
2013ND10ND
2014ND90ND
2015N/A00N/A
2016ND10ND
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
2012-04-181204-01475-001ND
2013-04-102806924ND
2014-01-202960212ND
2014-01-202960266ND
2014-04-153008820ND
2014-04-153008830ND
2014-07-153063501ND
2014-07-153063459ND
2014-10-083119857ND
2014-10-083119853ND
2014-12-223160978ND
2016-04-043424166ND
2017-02-213642087ND