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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Gadsden County Regional WS

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.

 

51

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
20130.347 ppb187ND - 1.60 ppb
20140.476 ppb2510ND - 1.90 ppb
2015N/A00N/A
2016N/A00N/A
20170.425 ppb83ND - 1.80 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 Result
2013-10-07ND
2013-10-07ND
2013-10-070.200 ppb
2013-10-07ND
2013-10-090.290 ppb
2013-10-09ND
2013-10-09ND
2013-10-090.300 ppb
2013-10-091.60 ppb
2013-10-091.50 ppb
2013-10-091.60 ppb
2013-10-09ND
2013-10-090.760 ppb
2013-10-14ND
2013-10-14ND
2013-10-14ND
2013-10-14ND
2013-10-14ND
2014-04-02ND
2014-04-020.740 ppb
2014-04-02ND
2014-04-09ND
2014-04-091.70 ppb
2014-04-09ND
2014-04-091.60 ppb
2014-04-090.580 ppb
2014-04-09ND
2014-04-091.60 ppb
2014-04-14ND
2014-04-14ND
2014-04-141.40 ppb
2014-04-15ND
2014-04-15ND
2014-04-15ND
2014-04-150.290 ppb
2014-04-15ND
2014-09-230.600 ppb
2014-09-241.90 ppb
2014-09-30ND
2014-09-301.50 ppb
2014-09-30ND
2014-10-01ND
2014-10-07ND
2017-10-171.80 ppb
2017-10-17ND
2017-10-17ND
2017-10-17ND
2017-10-180.200 ppb
2017-10-18ND
2017-10-181.40 ppb
2017-10-18ND