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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Tate-Monroe Water Association PWS

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.

 

10

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
2013N/A00N/A
2014ND20ND
20150.0400 ppb61ND - 0.240 ppb
2016N/A00N/A
2017ND20ND

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
2014-02-1214-11749-01AND
2014-02-1214-11751-01AND
2015-01-13201501200135AMND
2015-01-13201501200133AMND
2015-01-13201501200131AMND
2015-07-22201507290060AMND
2015-07-28201508010114AMND
2015-07-28201508010116AM0.240 ppb
2017-01-3117-11691-01AND
2017-01-3117-11690-01AND