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EWG's Tap Water Database

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Chromium (hexavalent)

Cole County PWSD 1

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
2013ND70ND
2014ND70ND
2015N/A00N/A

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.02 ppb

The health guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion.

All test results

Date Lab ID Result
2013-06-043595615009AMND
2013-06-043595615011AMND
2013-07-013598819001AMND
2013-07-013598819003AMND
2013-07-013598819004AMND
2013-07-013598819005AMND
2013-07-3035102383001AMND
2014-03-1735130410001AMND
2014-03-1735130410005AMND
2014-03-1735130410006AMND
2014-03-1735130410003AMND
2014-03-1735130410004AMND
2014-03-1735130410002AMND
2014-05-1935138781001AMND