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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Carrolls Creek Water Authority

NOTE: Carrolls Creek Water Authority purchases water from Tuscaloosa Water & Sewer which is required to test for chromium (total). Sample information shown below was taken by Tuscaloosa Water & Sewer.

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND60ND
2014ND20ND
2015ND180ND
2016ND40ND
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

NOTE: Carrolls Creek Water Authority purchases water from Tuscaloosa Water & Sewer which is required to test for chromium (total). Sample information shown below was taken by Tuscaloosa Water & Sewer.

Date Lab ID Result
2012-01-11120111122-2ND
2012-01-11120111122-1ND
2012-07-11120712001-2ND
2012-07-11120712001-1ND
2013-01-16130116022-1ND
2013-07-11130711023-2ND
2013-07-11130711023-1ND
2014-01-16140116029-1ND
2014-01-16140116029-2ND
2015-01-053166848ND
2015-01-053166859ND
2015-01-053166872ND
2015-01-053166884ND
2015-01-22150122023-1ND
2015-01-22150122023-2ND
2015-04-233230584ND
2015-04-233230573ND
2015-04-233230588ND
2015-04-233230592ND
2015-07-173283285ND
2015-07-173283177ND
2015-07-173283262ND
2015-07-173283145ND
2015-10-093339537ND
2015-10-093339418ND
2015-10-093339573ND
2015-10-093339439ND
2016-01-21160121011-2ND
2016-01-21160121011-1ND
2016-07-21160721027-1ND
2016-07-21160721027-2ND
2017-01-19170119023-1ND
2017-01-19170119023-2ND