Cobalt

Clay WDS

NOTE: Clay WDS purchases water from Onondaga County Water Authority (OCWA) which is required to test for cobalt. Sample information shown below was taken by Onondaga County Water Authority (OCWA).

Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and 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	Range of results
2013	N/A	0	N/A
2014	ND	8	ND
2015	ND	18	ND
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for cobalt was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-10-01	3115792	ND
2014-10-01	3115815	ND
2014-10-01	3115836	ND
2014-10-01	3115796	ND
2014-10-01	3115778	ND
2014-10-30	3131809	ND
2015-01-05	3165120	ND
2015-01-05	3165144	ND
2015-01-05	3165179	ND
2015-01-05	3165166	ND
2015-01-05	3165148	ND
2015-01-05	3165133	ND
2015-04-01	3217315	ND
2015-04-01	3217224	ND
2015-04-01	3217220	ND
2015-04-01	3217246	ND
2015-04-01	3217207	ND
2015-04-01	3217311	ND
2015-07-01	3273063	ND
2015-07-01	3273016	ND
2015-07-01	3273041	ND
2015-07-01	3273030	ND
2015-07-01	3272991	ND
2015-07-01	3273005	ND