Chromium (total)

Mantua Township MUA

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.

MORE ABOUT THIS CONTAMINANT

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	0.213 ppb	16	7	ND - 0.940 ppb
2014	0.129 ppb	7	1	ND - 0.900 ppb
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	ND	4	0	ND
2018	N/A	0	0	N/A
2019	N/A	0	0	N/A

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
2013-04-16	1022090009	ND
2013-04-16	1022090012	ND
2013-04-16	1022090003	ND
2013-04-16	1022090006	ND
2013-04-16	1022090015	ND
2013-06-21	1033477001	0.260 ppb
2013-06-21	1033477003	0.580 ppb
2013-07-23	1038596001	0.270 ppb
2013-07-23	1038596003	0.940 ppb
2013-10-23	1055470006	0.230 ppb
2013-10-23	1055470009	ND
2013-10-23	1055470003	ND
2013-10-23	1055470001	0.290 ppb
2013-10-23	1055470018	0.840 ppb
2013-10-23	1055470012	ND
2013-10-23	1055470015	ND
2014-01-14	1067599003	0.900 ppb
2014-01-14	1067599001	ND
2014-08-26	140826/2470-05	ND
2014-08-26	140826/2470-04	ND
2014-08-26	140826/2470-03	ND
2014-08-26	140826/2470-02	ND
2014-08-26	140826/2470-01	ND
2017-09-19	170919/4348-4	ND
2017-09-19	170919/4348-6	ND
2017-09-19	170919/4348-5	ND
2017-09-19	170919/4348-7	ND