Know Your Environment. Protect Your Health.

Cobalt

City of Redmond Water System

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND160ND
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
2014-09-24A4H1630-01AND
2014-09-24A4H1630-06AND
2015-03-04A5B1435-01AND
2015-03-04A5B1435-06AND
2015-06-09A5C2165-09AND
2015-06-09A5C2165-11AND
2015-06-09A5C2165-07AND
2015-06-09A5C2165-01AND
2015-06-09A5C2165-05AND
2015-06-09A5C2165-03AND
2015-08-18A5G2132-01AND
2015-09-09A5C2343-07AND
2015-09-09A5C2347-03AND
2015-09-09A5C2347-01AND
2015-09-09A5C2343-01AND
2015-09-09A5C2343-05AND
2015-09-09A5C2343-03AND
2015-12-15A5K1615-01AND