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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Epcor Water - Agua Fria

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

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND560ND
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
2013-03-112791432ND
2013-03-112791440ND
2013-03-112791426ND
2013-03-112791418ND
2013-03-122792088ND
2013-03-122792080ND
2013-03-122792073ND
2013-03-122792051ND
2013-03-122792062ND
2013-03-122792040ND
2013-03-122791970ND
2013-03-122791952ND
2013-03-132792950ND
2013-03-132793858ND
2013-03-132793853ND
2013-03-132792940ND
2013-03-222797372ND
2013-04-172811171ND
2013-06-1322922701ND
2013-06-1322599501ND
2013-06-1322599201ND
2013-06-1322599701ND
2013-06-1322922601ND
2013-06-1322599901ND
2013-06-1422599401ND
2013-06-1422600001ND
2013-06-1422599601ND
2013-06-1422600101ND
2013-09-1023379501ND
2013-09-1023380301ND
2013-09-1023380201ND
2013-09-1023380401ND
2013-09-1023379401ND
2013-09-1023379301ND
2013-09-1123380901ND
2013-09-1123380801ND
2013-09-1123380601ND
2013-09-1123379801ND
2013-09-1123379601ND
2013-09-1123380001ND
2013-09-1223381001ND
2013-09-1223379701ND
2013-09-1223380101ND
2013-09-1223379901ND
2013-09-1223380501ND
2013-09-1223380701ND
2013-12-0524236301ND
2013-12-0524236101ND
2013-12-0524236801ND
2013-12-0524236601ND
2013-12-1024236401ND
2013-12-1024236201ND
2013-12-1024236001ND
2013-12-1024236501ND
2013-12-1024236901ND
2013-12-1024236701ND