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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

SJWTX Triple Peak Plant

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

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND380ND
2014ND20ND
2015N/A00N/A
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
2013-06-18Q1302518017ND
2013-06-18Q1302518009ND
2013-06-18Q1302518001ND
2013-06-18Q1302518011ND
2013-06-18Q1302518019ND
2013-06-18Q1302518003ND
2013-06-18Q1302518025ND
2013-06-18Q1302518021ND
2013-06-18Q1302518035ND
2013-06-18Q1302518029ND
2013-06-18Q1302518027ND
2013-06-19Q1302518031ND
2013-06-19Q1302518007ND
2013-06-19Q1302518005ND
2013-06-19Q1302518015ND
2013-06-19Q1302518033ND
2013-06-19Q1302518023ND
2013-06-19Q1302518013ND
2013-09-25Q1308037001ND
2013-09-25Q1308037003ND
2013-12-16Q1318114019ND
2013-12-16Q1318114009ND
2013-12-16Q1318114015ND
2013-12-16Q1318114001ND
2013-12-16Q1318114003ND
2013-12-16Q1318114007ND
2013-12-16Q1318114021ND
2013-12-16Q1318114025ND
2013-12-16Q1318114027ND
2013-12-16Q1318114033ND
2013-12-17Q1318114005ND
2013-12-17Q1318114017ND
2013-12-17Q1318114023ND
2013-12-17Q1318114013ND
2013-12-17Q1318114029ND
2013-12-17Q1318114035ND
2013-12-17Q1318114011ND
2013-12-17Q1318114031ND
2014-03-31Q1410037003ND
2014-03-31Q1410037001ND