Know Your Environment. Protect Your Health.

Cobalt

Mallory Valley Utility Distric

NOTE: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for cobalt. Sample information shown below was taken by Harpeth Valley Utility District.

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
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: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for cobalt. Sample information shown below was taken by Harpeth Valley Utility District.

Date Result
2014-05-15ND
2014-05-15ND
2014-08-14ND
2014-08-14ND
2014-11-17ND
2014-11-17ND
2015-02-11ND
2015-02-11ND