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Chromium (hexavalent)

Del-Co Water Company Inc.

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).

 

16

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
2013N/A00N/A
20140.308 ppb1312ND - 0.750 ppb
20150.243 ppb330.190 ppb - 0.280 ppb

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
2014-05-05201405060272AM0.340 ppb
2014-05-05201405060353AM0.280 ppb
2014-05-13201405140512AM0.490 ppb
2014-05-13201405140518AMND
2014-05-21201405220455AM0.0700 ppb
2014-08-05201408060320AM0.750 ppb
2014-08-05201408060357AM0.500 ppb
2014-08-12201408130376AM0.390 ppb
2014-08-19201408210450AM0.0420 ppb
2014-11-17201411180487AM0.510 ppb
2014-11-17201411180088AM0.320 ppb
2014-11-17201411180174AM0.270 ppb
2014-11-18201411190573AM0.0460 ppb
2015-02-10201502110515AM0.260 ppb
2015-02-10201502110510AM0.280 ppb
2015-02-11201502120616AM0.190 ppb