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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

West Cedar Creek MUD

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND150ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-03-20Q1408898003ND
2014-03-20Q1408898005ND
2014-03-20Q1408898007ND
2014-03-20Q1408898001ND
2014-06-25Q1423510001ND
2014-06-25Q1423510003ND
2014-06-25Q1423510005ND
2014-06-25Q1423510007ND
2014-09-29Q1448891003ND
2014-09-29Q1448891005ND
2014-09-29Q1448891007ND
2014-09-29Q1448891001ND
2014-12-22Q1460739001ND
2014-12-22Q1460739003ND
2014-12-22Q1460739005ND