Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Whitworth Water District 2

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).

 

28

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.322 ppb14140.147 ppb - 0.609 ppb
20150.327 ppb14140.141 ppb - 0.641 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2014-07-15WA97-SE1-14-13634-317890.254 ppb
2014-07-15WA97-SE1-14-13634-317960.248 ppb
2014-07-15WA97-SE1-14-13634-317950.320 ppb
2014-07-15WA97-SE1-14-13634-317900.281 ppb
2014-07-15WA97-SE1-14-13634-317970.342 ppb
2014-07-16WA97-SE1-14-13634-317990.320 ppb
2014-07-16WA97-SE1-14-13634-317880.330 ppb
2014-07-16WA97-SE1-14-13634-317920.609 ppb
2014-07-16WA97-SE1-14-13634-317870.322 ppb
2014-07-16WA97-SE1-14-13634-317980.296 ppb
2014-07-16WA97-SE1-14-13634-318000.364 ppb
2014-07-16WA97-SE1-14-13634-317940.339 ppb
2014-07-16WA97-SE1-14-13634-317910.147 ppb
2014-07-16WA97-SE1-14-13634-317930.341 ppb
2015-01-12WA97-SE1-15-01346-31780.320 ppb
2015-01-12WA97-SE2-15-01346-31720.332 ppb
2015-01-12WA97-SE2-15-01346-31740.275 ppb
2015-01-12WA97-SE2-15-01346-31710.318 ppb
2015-01-12WA97-SE2-15-01346-31730.253 ppb
2015-01-12WA97-SE1-15-01346-31810.272 ppb
2015-01-12WA97-SE1-15-01346-31820.290 ppb
2015-01-12WA97-SE1-15-01346-31830.566 ppb
2015-01-12WA97-SE1-15-01346-31800.245 ppb
2015-01-12WA97-SE1-15-01346-31750.141 ppb
2015-01-12WA97-SE1-15-01346-31770.344 ppb
2015-01-12WA97-SE1-15-01346-31760.641 ppb
2015-01-13WA97-SE1-15-01346-31840.272 ppb
2015-01-13WA97-SE1-15-01346-31790.302 ppb