Know Your Environment. Protect Your Health.

Cobalt

Rockwood People's Utilities Department

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for cobalt. Sample information shown below was taken by Portland Water Bureau.

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND20ND
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: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for cobalt. Sample information shown below was taken by Portland Water Bureau.

Date Lab ID Result
2014-03-19201403200265AMND
2014-03-19201403200340AMND
2014-06-26201406270313AMND
2014-06-26201406270434AMND
2014-07-08201407090732AMND
2014-09-11201409120957AMND
2014-09-11201409120826AMND
2014-12-10201412110822AMND
2014-12-10201412110612AMND
2015-06-17201506180496AMND