Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Cobalt

City of Avondale

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

 

24

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
2013ND220ND
2014ND20ND
2015N/A00N/A
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
2013-05-232831073ND
2013-05-232831063ND
2013-05-232831078ND
2013-05-242832712ND
2013-05-282832600ND
2013-05-282832582ND
2013-06-272850070ND
2013-06-272850062ND
2013-06-272850066ND
2013-06-272850055ND
2013-06-272850052ND
2013-06-272850058ND
2013-11-192934647ND
2013-11-192934487ND
2013-11-212935639ND
2013-11-212935512ND
2013-11-212935655ND
2013-11-262937571ND
2013-11-262937560ND
2013-11-262937581ND
2013-11-262937585ND
2013-12-192951044ND
2014-02-132975047ND
2014-03-062987716ND