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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

City of Sweetwater

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
2012N/A00N/A
2013N/A00N/A
2014ND20ND
2015ND60ND
2016N/A00N/A
2017N/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
2014-12-18Q1460558003ND
2014-12-18Q1460558001ND
2015-03-25Q1511069001ND
2015-03-25Q1511069003ND
2015-06-17Q1522518001ND
2015-06-17Q1522518003ND
2015-09-23Q1537280001ND
2015-09-23Q1537280003ND