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EWG's Tap Water Database

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Cobalt

Beauregard Water Works District #3

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND240ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 70 ppb

The 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
2015-02-273197608ND
2015-02-273197685ND
2015-02-273197596ND
2015-02-273197619ND
2015-02-273197572ND
2015-02-273197689ND
2015-02-273197638ND
2015-02-273197590ND
2015-02-273197676ND
2015-02-273197564ND
2015-03-113205158ND
2015-03-113205162ND
2015-08-183305616ND
2015-08-183305573ND
2015-08-183305509ND
2015-08-183305548ND
2015-08-183305960ND
2015-08-183305544ND
2015-08-183305600ND
2015-08-183305588ND
2015-08-183305582ND
2015-08-183305954ND
2015-08-183305531ND
2015-08-183305540ND