Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chromium (total)

City of Aiken

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND130ND
2014ND60ND
2015ND20ND
2016ND10ND
2017ND50ND

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
2012-04-04AD05439ND
2013-04-24AD22837ND
2013-06-04201306060126AMND
2013-06-04201306060147AMND
2013-06-04201306060143AMND
2013-06-04201306060136AMND
2013-06-04201306060106AMND
2013-09-03201309050200AMND
2013-09-03201309050285AMND
2013-12-04201312060148AMND
2013-12-04201312060136AMND
2013-12-04201312060145AMND
2013-12-04201312060138AMND
2013-12-04201312060115AMND
2014-03-03201403060216AMND
2014-03-03201403060245AMND
2014-05-21AD40209ND
2014-05-21AD40200ND
2014-05-21AD40198ND
2014-05-21AD40196ND
2015-05-20AD55699ND
2015-11-09AD65512ND
2016-05-04AD75337ND
2017-07-12AD97143ND
2017-07-12AD97176ND
2017-07-12AD97137ND
2017-07-12AD97139ND
2017-07-13AD97142ND