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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Horsham Water&sewer Authority

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

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0800 ppb352ND - 1.50 ppb
2015ND30ND
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
2014-06-24AE37778ND
2014-06-24AE37775ND
2014-06-24AE37781ND
2014-06-24AE37877ND
2014-06-24AE37871ND
2014-06-24AE37769ND
2014-06-24AE378741.50 ppb
2014-06-24AE37772ND
2014-06-24AE37868ND
2014-06-25AE38119ND
2014-06-25AE38113ND
2014-06-25AE38110ND
2014-06-25AE38116ND
2014-06-26AE38214ND
2014-06-26AE38211ND
2014-07-03AE39279ND
2014-07-24AE41843ND
2014-09-24AE49704ND
2014-09-24AE49702ND
2014-09-24AE50038ND
2014-12-05AE59397ND
2014-12-08AE59491ND
2014-12-08AE59488ND
2014-12-08AE59494ND
2014-12-09AE59781ND
2014-12-09AE59784ND
2014-12-09AE597781.30 ppb
2014-12-10AE59906ND
2014-12-10AE59900ND
2014-12-10AE59897ND
2014-12-10AE59903ND
2014-12-12AE60080ND
2014-12-12AE60086ND
2014-12-12AE60083ND
2014-12-12AE60077ND
2015-03-18AE68815ND
2015-03-19AE68817ND
2015-03-19AE68813ND