Chromium (total)

Enterprise Water Works

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
2014	0.0258 ppb	26	1	ND - 0.670 ppb
2015	ND	25	0	ND
2016	ND	16	0	ND
2017	ND	4	0	ND
2018	N/A	0	0	N/A
2019	ND	15	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
2014-09-25	35157120046AM	ND
2014-09-25	35157120028AM	ND
2014-09-25	35157120024AM	ND
2014-09-25	35157120014AM	ND
2014-09-25	35157120032AM	ND
2014-09-25	35157120038AM	ND
2014-09-25	35157120042AM	ND
2014-09-25	35157120036AM	ND
2014-09-25	35157120001AM	ND
2014-09-25	35157120044AM	ND
2014-09-25	35157120048AM	ND
2014-09-25	35157120050AM	ND
2014-09-25	35157120040AM	ND
2014-09-25	35157120016AM	0.670 ppb
2014-09-25	35157120020AM	ND
2014-09-25	35157120006AM	ND
2014-09-25	35157120018AM	ND
2014-09-25	35157120010AM	ND
2014-09-26	35157120003AM	ND
2014-09-26	35157120034AM	ND
2014-09-26	35157120008AM	ND
2014-09-26	35157120030AM	ND
2014-09-26	35157120012AM	ND
2014-09-26	35157120022AM	ND
2014-09-26	35157120026AM	ND
2014-11-18	1411-00235-6I	ND
2015-03-09	35178873017AM	ND
2015-03-09	35178873021AM	ND
2015-03-09	35178873009AM	ND
2015-03-09	35178873007AM	ND
2015-03-09	35178873011AM	ND
2015-03-09	35178873003AM	ND
2015-03-09	35178873029AM	ND
2015-03-09	35178873001AM	ND
2015-03-09	35178873023AM	ND
2015-03-09	35178873019AM	ND
2015-03-09	35178873005AM	ND
2015-03-09	35178873031AM	ND
2015-03-09	35178873013AM	ND
2015-03-09	35178873015AM	ND
2015-03-09	35178873033AM	ND
2015-03-09	35178873027AM	ND
2015-03-09	35178873025AM	ND
2015-03-10	35179328009AM	ND
2015-03-10	35179328001AM	ND
2015-03-10	35179328005AM	ND
2015-03-10	35179328015AM	ND
2015-03-10	35179328007AM	ND
2015-03-10	35179328003AM	ND
2015-03-10	35179328013AM	ND
2015-03-10	35179328011AM	ND
2016-10-18	1610-00215-1I	ND
2016-12-06	1612-00141-32	ND
2016-12-06	161200141-6	ND
2016-12-06	1612-00141-35	ND
2016-12-06	161200141-16	ND
2016-12-06	161200141-12	ND
2016-12-06	161200141-25	ND
2016-12-06	161200141-8	ND
2016-12-06	1612-00141-30	ND
2016-12-06	161200141-2	ND
2016-12-06	161200141-18	ND
2016-12-06	161200141-14	ND
2016-12-06	161200141-10	ND
2016-12-06	161200141-27	ND
2016-12-06	161200141-4	ND
2016-12-06	161200141-20	ND
2017-03-21	1703-00293-2	ND
2017-04-24	1704-00401-1	ND
2017-10-31	171100018-1	ND
2017-10-31	171100018-11	ND
2019-12-18	1912-00393-004	ND
2019-12-18	1912-00393-015	ND
2019-12-18	1912-00393-014	ND
2019-12-18	1912-00393-008	ND
2019-12-18	1912-00393-012	ND
2019-12-18	1912-00393-013	ND
2019-12-18	1912-00393-010	ND
2019-12-18	1912-00393-003	ND
2019-12-18	1912-00393-001	ND
2019-12-18	1912-00393-002	ND
2019-12-18	1912-00393-006	ND
2019-12-18	1912-00393-005	ND
2019-12-18	1912-00393-007	ND
2019-12-18	1912-00393-009	ND
2019-12-18	1912-00393-011	ND