Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Cobalt

South Huntington Water Department

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

 

24

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
20131.10 ppb73ND - 3.00 ppb
20142.30 ppb94ND - 7.60 ppb
20157.98 ppb82ND - 62.6 ppb
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

Date Lab ID Result
2013-11-18201311190210AM2.50 ppb
2013-11-18201311190212AMND
2013-11-19201311210970AM2.20 ppb
2013-11-19201311220114AMND
2013-11-19201311220116AM3.00 ppb
2013-11-20201311210960AMND
2013-11-20201311210962AMND
2014-04-1535134479001AMND
2014-05-1235138413005AMND
2014-05-1235138413001AM2.20 ppb
2014-05-1235138413003AM7.00 ppb
2014-05-1435138413011AMND
2014-05-1435138413009AM7.60 ppb
2014-05-1435138413007AMND
2014-05-1635138768005AM3.90 ppb
2014-10-2735161424001AAMND
2015-01-2335173213001AMND
2015-01-2335173213003AMND
2015-01-2635173213005AMND
2015-04-2335185521001AM1.20 ppb
2015-07-2735200783003AM62.6 ppb
2015-07-2735200781001AMND
2015-07-2735200783001AMND
2015-10-2135213424001AMND