Know Your Environment. Protect Your Health.

Cobalt

Clark Public Utilities

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

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND20ND
2014ND50ND
2015ND140ND
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

Date Lab ID Result
2013-09-17A3I0852-05AND
2013-09-17A3I0852-01AND
2014-03-26A4C0715-05AND
2014-03-26A4C0715-01AND
2014-05-13A4E0222-01AND
2014-05-13A4E0222-06AND
2014-12-10A4K2008-01AND
2015-02-10A5A2311-01AND
2015-02-10A5A2311-03AND
2015-04-28A5D1712-01AND
2015-05-19A5D2279-01AND
2015-05-19A5D2282-01AND
2015-06-11A5E2086-06AND
2015-06-11A5E2086-16AND
2015-06-11A5E2086-01AND
2015-06-11A5E2086-11AND
2015-11-19A5J2330-01AND
2015-12-21A5K1239-06AND
2015-12-21A5K1239-11AND
2015-12-21A5K1239-01AND
2015-12-21A5K1239-16AND