Chromium (total)

Fort Drum

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	0.317 ppb	6	2	ND - 1.60 ppb
2015	0.0833 ppb	6	2	ND - 0.300 ppb
2016	N/A	0	0	N/A
2017	1.02 ppb	6	6	0.900 ppb - 1.10 ppb
2018	ND	6	0	ND
2019	ND	6	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
2014-08-04	SB94214-05PRI	ND
2014-09-08	3099441	ND
2014-09-08	3099410	0.300 ppb
2014-09-08	3099420	1.60 ppb
2014-12-09	3152460	ND
2014-12-09	3152458	ND
2015-03-04	3199978	ND
2015-03-04	3199982	0.200 ppb
2015-03-04	3199991	ND
2015-05-04	SC07048-01PRI	ND
2015-06-03	3254652	0.300 ppb
2015-06-03	3254661	ND
2017-08-15	L172837-01PRI	1.10 ppb
2017-08-15	L172837-06PRI	1.000 ppb
2017-08-15	L172837-02PRI	1.10 ppb
2017-08-15	L172837-03PRI	1.10 ppb
2017-08-15	L172837-04PRI	0.900 ppb
2017-08-15	L172837-05PRI	0.900 ppb
2018-08-15	L1832126-04PRI	ND
2018-08-15	L1832126-06PRI	ND
2018-08-15	L1832126-05PRI	ND
2018-08-15	L1832126-02PRI	ND
2018-08-15	L1832126-03PRI	ND
2018-08-15	L1832126-01PRI	ND
2019-07-16	L1931181-04PRI	ND
2019-07-16	L1931181-02PRI	ND
2019-07-16	L1931181-01PRI	ND
2019-07-16	L1931181-06PRI	ND
2019-07-16	L1931181-05PRI	ND
2019-07-16	L1931181-03PRI	ND