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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Aqua Pennsylvania Main System

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

MORE ABOUT THIS CONTAMINANT

 

104

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND1040ND
2014N/A00N/A
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
2013-01-13AD77943ND
2013-01-13AD77946ND
2013-01-13AD77949ND
2013-01-14AD78005ND
2013-01-14AD78002ND
2013-01-14AD78011ND
2013-01-14AD78137ND
2013-01-14AD78008ND
2013-01-14AD78140ND
2013-01-15AD77870ND
2013-01-15AD77871ND
2013-01-15AD77872ND
2013-01-16AD78017ND
2013-01-16AD78044ND
2013-01-16AD78024ND
2013-01-16AD78023ND
2013-01-16AD77940ND
2013-01-16AD77952ND
2013-01-17AD78067ND
2013-01-17AD78109ND
2013-01-18AD78143ND
2013-01-18AD77955ND
2013-01-22AD78014ND
2013-01-23AD77857ND
2013-01-23AD78146ND
2013-01-24AD79023ND
2013-01-29AD78029ND
2013-02-05AD77823ND
2013-02-14AD80780ND
2013-02-21AD80783ND
2013-02-25AD81291ND
2013-04-06AD86186ND
2013-04-06AD86189ND
2013-04-06AD86180ND
2013-04-06AD86183ND
2013-04-06AD86195ND
2013-04-06AD86192ND
2013-04-15AD86858ND
2013-04-16AD86867ND
2013-04-16AD86887ND
2013-04-16AD86868ND
2013-04-16AD86892ND
2013-04-17AD86947ND
2013-04-17AD86946ND
2013-04-17AD86952ND
2013-04-17AD86825ND
2013-04-17AD86826ND
2013-04-18AD87382ND
2013-04-18AD86824ND
2013-04-18AD87372ND
2013-06-05AD93190ND
2013-06-07AD93747ND
2013-07-16AD98126ND
2013-07-16AD98092ND
2013-07-17AD98134ND
2013-07-17AD98140ND
2013-07-17AD98135ND
2013-07-17AD98389ND
2013-07-17AD98390ND
2013-07-18AD98277ND
2013-07-18AD98264ND
2013-07-18AD98617ND
2013-07-20AD99138ND
2013-07-20AD99153ND
2013-07-20AD99141ND
2013-07-20AD99147ND
2013-07-20AD99144ND
2013-07-20AD99150ND
2013-07-22AD99011ND
2013-07-23AD99412ND
2013-07-23AD99195ND
2013-07-30AE00521ND
2013-07-30AE00527ND
2013-07-30AE00498ND
2013-07-30AE00530ND
2013-07-30AE00524ND
2013-07-30AE00504ND
2013-07-30AE00501ND
2013-07-30AE00533ND
2013-07-30AE00495ND
2013-07-31AE00816ND
2013-07-31AE00819ND
2013-07-31AE00813ND
2013-07-31AE00822ND
2013-07-31AE00825ND
2013-10-28AE13073ND
2013-10-28AE13131ND
2013-10-29AE13284ND
2013-10-29AE13282ND
2013-10-29AE13286ND
2013-10-29AE13280ND
2013-10-29AE13290ND
2013-10-29AE13288ND
2013-10-29AE13292ND
2013-10-30AE13450ND
2013-10-30AE13452ND
2013-10-30AE13448ND
2013-10-30AE13445ND
2013-10-30AE13442ND
2013-10-31AE13766ND
2013-10-31AE13762ND
2013-10-31AE13764ND
2013-10-31AE13760ND
2013-10-31AE13768ND