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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

Cross Valley Water District

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)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.338 ppb1614ND - 1.29 ppb
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG 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
2013-04-03WA97-SE1-1300536ND
2013-04-03WA97-SE1-13-05360.0340 ppb
2013-04-03WA97-SE1-13-05361.03 ppb
2013-04-03WA97-SE1-13-05360.0790 ppb
2013-04-03WA97-SE1-13-05360.0420 ppb
2013-04-03WA97-SE1-13-05360.0460 ppb
2013-04-03WA97-SE1-13-05361.21 ppb
2013-04-03WA97-SE1-13-05360.0930 ppb
2013-10-09WA97-SE2-13-19481.29 ppb
2013-10-09WA97-SE2-13-1948ND
2013-10-09WA97-SE2-13-19481.21 ppb
2013-10-09WA97-SE2-13-19480.0470 ppb
2013-10-09WA97-SE2-13-19480.0320 ppb
2013-10-09WA97-SE2-13-19480.0940 ppb
2013-10-09WA97-SE2-13-19480.153 ppb
2013-10-09WA97-SE2-13-19480.0560 ppb