Know Your Environment. Protect Your Health.

Cobalt

City of La Grande

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND200ND
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
2015-03-11150313022-005ND
2015-03-11150313022-002ND
2015-03-11150313022-004ND
2015-03-11150313022-003ND
2015-03-11150313022-009ND
2015-03-11150313022-006ND
2015-03-11150313022-010ND
2015-03-11150313022-007ND
2015-03-11150313022-008ND
2015-03-11150313022-001ND
2015-10-07151012028-005ND
2015-10-07151012028-002ND
2015-10-07151012028-006ND
2015-10-07151012028-008ND
2015-10-07151012028-007ND
2015-10-07151012028-010ND
2015-12-09151216030-001ND
2015-12-09151216030-004ND
2015-12-09151216030-003ND
2015-12-09151216030-002ND