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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

North Penn Water Authority

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

 

50

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
2014N/A00N/A
2015ND500ND
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
2015-01-133170197ND
2015-01-133170051ND
2015-01-133170219ND
2015-01-133170135ND
2015-01-133170157ND
2015-01-133170038ND
2015-01-133170183ND
2015-01-133170065ND
2015-01-133170210ND
2015-01-133170237ND
2015-01-133170006ND
2015-01-133170142ND
2015-01-133170084ND
2015-01-133170187ND
2015-01-133169999ND
2015-01-133170241ND
2015-01-133170071ND
2015-01-133170101ND
2015-01-133170109ND
2015-01-133170228ND
2015-01-133170201ND
2015-01-133170019ND
2015-02-023180017ND
2015-04-083220954ND
2015-04-083220921ND
2015-07-143282129ND
2015-07-143282100ND
2015-07-143282151ND
2015-07-143282120ND
2015-07-143282092ND
2015-07-143282096ND
2015-07-143282246ND
2015-07-143282138ND
2015-07-143282187ND
2015-07-143282223ND
2015-07-143282112ND
2015-07-143282196ND
2015-07-143282147ND
2015-07-143282178ND
2015-07-143282169ND
2015-07-143282160ND
2015-07-143282214ND
2015-07-143282108ND
2015-07-143282104ND
2015-07-203283344ND
2015-07-203283340ND
2015-08-103296367ND
2015-08-103296373ND
2015-10-073336893ND
2015-10-073336889ND