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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Citizens Water - Indianapolis

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

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND590ND
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
2015-03-163206722ND
2015-03-163206673ND
2015-03-163206717ND
2015-03-163206666ND
2015-03-163206658ND
2015-03-163206699ND
2015-03-173208289ND
2015-03-173208143ND
2015-03-173208196ND
2015-03-173208183ND
2015-03-173208216ND
2015-03-173208276ND
2015-06-243271577ND
2015-06-253271552ND
2015-06-253271556ND
2015-06-253271562ND
2015-06-253271493ND
2015-06-253271521ND
2015-06-253271611ND
2015-06-253271596ND
2015-06-253271641ND
2015-06-253271615ND
2015-06-253271487ND
2015-06-253271510ND
2015-06-253271607ND
2015-06-253271573ND
2015-06-253271542ND
2015-06-263271592ND
2015-09-223327703ND
2015-09-223327681ND
2015-09-233328820ND
2015-09-233330027ND
2015-09-233330038ND
2015-09-233330034ND
2015-09-233330007ND
2015-09-233330022ND
2015-09-233328805ND
2015-09-233328758ND
2015-09-243330017ND
2015-09-283332080ND
2015-09-283332089ND
2015-09-283332091ND
2015-09-283331975ND
2015-09-283332070ND
2015-09-293332067ND
2015-09-293332078ND
2015-12-093372041ND
2015-12-093372004ND
2015-12-093371858ND
2015-12-093371831ND
2015-12-093372186ND
2015-12-093371780ND
2015-12-093371880ND
2015-12-093371863ND
2015-12-093371874ND
2015-12-093371887ND
2015-12-103372860ND
2015-12-103372868ND
2015-12-303380619ND