Chromium (total)

Fayetteville Public Works Commission

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.0417 ppb	12	2	ND - 0.300 ppb
2014	ND	2	0	ND
2015	ND	2	0	ND
2016	ND	2	0	ND
2017	ND	2	0	ND
2018	ND	2	0	ND
2019	ND	2	0	ND

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
2013-01-17	201301180373AM	ND
2013-01-17	201301180382AM	ND
2013-01-17	201301180403AM	ND
2013-04-25	201304260169AM	ND
2013-04-25	201304260171AM	ND
2013-04-25	201304260156AM	ND
2013-07-17	201307180836AM	0.300 ppb
2013-07-17	201307180563AM	ND
2013-07-17	201307180787AM	0.200 ppb
2013-10-28	201310290142AM	ND
2013-10-28	201310290139AM	ND
2013-10-28	201310290175AM	ND
2014-01-07	82210	ND
2014-01-07	82211	ND
2015-01-05		ND
2015-01-05		ND
2016-01-04	98067	ND
2016-01-04	98066	ND
2017-01-09	105588	ND
2017-01-09	105587	ND
2018-01-08	113629INORGANICS	ND
2018-01-08	113628INORGANICS	ND
2019-01-07	121458I	ND
2019-01-07	121457I	ND