Know Your Environment. Protect Your Health.

Cobalt

City of Cornelius

NOTE: City of Cornelius purchases water from City of Hillsboro which is required to test for cobalt. Sample information shown below was taken by City of Hillsboro.

Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: City of Cornelius purchases water from City of Hillsboro which is required to test for cobalt. Sample information shown below was taken by City of Hillsboro.

Date Lab ID Result
2013-07-15WA97-SE1-13-12517-28354ND
2013-07-15WA97-SE1-13-12517-28355ND
2013-10-14WA97-SE2-13-19683-44637ND
2013-10-14WA97-SE2-19683-44636ND
2014-01-06WA97-SE3-14-00266-657ND
2014-01-06WA97-SE3-14-00266-656ND
2014-04-16WA97-SE4-14-06653-16043ND
2014-04-16WA97-SE4-14-06653-16042ND