Chromium (hexavalent)
Arlington Heights
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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.163 ppb | 2 | 2 | 0.160 ppb - 0.165 ppb |
2015 | 0.194 ppb | 6 | 6 | 0.184 ppb - 0.202 ppb |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/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 |
---|---|---|
2014-12-17 | 836470-13099 | 0.160 ppb |
2014-12-17 | 836472-13099 | 0.165 ppb |
2015-03-17 | 849404-13668 | 0.184 ppb |
2015-03-17 | 849406-13668 | 0.185 ppb |
2015-06-03 | 863794-14233 | 0.196 ppb |
2015-06-03 | 863792-14233 | 0.202 ppb |
2015-09-09 | 882513-14885 | 0.201 ppb |
2015-09-09 | 882515-14885 | 0.197 ppb |