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EWG's Tap Water Database — 2019 UPDATE

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Cobalt

Carrolls Creek Water Authority

NOTE: Carrolls Creek Water Authority purchases water from Tuscaloosa Water & Sewer which is required to test for cobalt. Sample information shown below was taken by Tuscaloosa Water & Sewer.

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

 

16

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
2013ND60ND
2014ND20ND
2015ND160ND
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

NOTE: Carrolls Creek Water Authority purchases water from Tuscaloosa Water & Sewer which is required to test for cobalt. Sample information shown below was taken by Tuscaloosa Water & Sewer.

Date Lab ID Result
2015-01-053166859ND
2015-01-053166884ND
2015-01-053166872ND
2015-01-053166848ND
2015-04-233230584ND
2015-04-233230592ND
2015-04-233230588ND
2015-04-233230573ND
2015-07-173283177ND
2015-07-173283145ND
2015-07-173283262ND
2015-07-173283285ND
2015-10-093339537ND
2015-10-093339439ND
2015-10-093339573ND
2015-10-093339418ND