Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Cobalt

Epcor Water - Sun City

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

MORE ABOUT THIS CONTAMINANT

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND360ND
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
2013-02-112777994ND
2013-02-112778012ND
2013-02-112777963ND
2013-02-112777977ND
2013-02-112777967ND
2013-02-122778898ND
2013-02-132779620ND
2013-02-132779687ND
2013-02-132779728ND
2013-02-132779598ND
2013-02-132779593ND
2013-02-132779612ND
2013-02-132779630ND
2013-03-192795759ND
2013-03-192795770ND
2013-03-192795761ND
2013-03-192795755ND
2013-04-172811169ND
2013-08-1223246601ND
2013-08-1223247001ND
2013-08-1223246401ND
2013-08-1223246901ND
2013-08-1223247101ND
2013-08-1223246501ND
2013-08-1323246101ND
2013-08-1323247201ND
2013-08-1323247401ND
2013-08-1323246701ND
2013-08-1323246001ND
2013-08-1323247301ND
2013-08-1423247601ND
2013-08-1423247701ND
2013-08-1423247501ND
2013-08-1423246201ND
2013-08-1423246301ND
2013-08-1423246801ND