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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

City of Florence

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND110ND
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
2014-10-08201410100250AMND
2014-10-08201410100236AMND
2014-10-08201410100325AMND
2014-10-08201410100223AMND
2015-01-07201501090494AMND
2015-01-07201501090496AMND
2015-04-08201504100228AMND
2015-04-08201504100192AMND
2015-04-08201504100151AMND
2015-04-08201504100144AMND
2015-07-08201507100344AMND
2015-07-22201507240206AMND
2015-09-29201508180078AMND
2015-09-29201508180080AMND
2015-12-14201508180091AMND