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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Rio Rancho Water and Waterworks Services

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

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015ND10ND
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
2014-02-1124843201ND
2014-02-1124842801ND
2014-02-1124843601ND
2014-02-1124843301ND
2014-02-1124843001ND
2014-02-1224843101ND
2014-02-1224843701ND
2014-02-1224842901ND
2014-02-1224843501ND
2014-02-1224843801ND
2014-08-1926770001ND
2014-08-1926769901ND
2014-08-1926769501ND
2014-08-1926770201ND
2014-08-1926769301ND
2014-08-1926769701ND
2014-08-1926769401ND
2014-08-1926769601ND
2014-08-1926769801ND
2014-08-2026770101ND
2015-02-1928186801ND