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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Prescott Valley WD Upper

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

 

44

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
20140.0500 ppb221ND - 1.10 ppb
2015ND220ND
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
2014-12-08201412100580AMND
2014-12-08201412110324AMND
2014-12-08201412100471AM1.10 ppb
2014-12-08201412110257AMND
2014-12-08201412110322AMND
2014-12-08201412100582AMND
2014-12-08201412110346AMND
2014-12-08201412110334AMND
2014-12-08201412100594AMND
2014-12-15201412160328AMND
2014-12-15201412160348AMND
2014-12-15201412160340AMND
2014-12-15201412160342AMND
2014-12-15201412160352AMND
2014-12-15201412160334AMND
2014-12-15201412160332AMND
2014-12-15201412160346AMND
2014-12-15201412160344AMND
2014-12-15201412160350AMND
2014-12-15201412160336AMND
2014-12-15201412160330AMND
2014-12-15201412160338AMND
2015-06-09201506100454AMND
2015-06-09201506100487AMND
2015-06-09201506100542AMND
2015-06-09201506100452AMND
2015-06-09201506100383AMND
2015-06-09201506100245AMND
2015-06-09201506100468AMND
2015-06-09201506100460AMND
2015-06-09201506100535AMND
2015-06-09201506100489AMND
2015-06-09201506100241AMND
2015-06-09201506100447AMND
2015-06-09201506100540AMND
2015-06-09201506100544AMND
2015-06-09201506100464AMND
2015-06-09201506100554AMND
2015-06-09201506100537AMND
2015-06-09201506100400AMND
2015-06-09201506100559AMND
2015-06-09201506100370AMND
2015-06-09201506100569AMND
2015-06-09201506100411AMND