Chromium (hexavalent)
Waterpro 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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.202 ppb | 12 | 11 | ND - 0.404 ppb |
2014 | 0.312 ppb | 3 | 3 | 0.142 ppb - 0.411 ppb |
2015 | N/A | 0 | 0 | N/A |
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 | Result |
---|---|
2013-05-07 | 0.215 ppb |
2013-05-07 | ND |
2013-05-07 | 0.257 ppb |
2013-05-08 | 0.0590 ppb |
2013-08-20 | 0.379 ppb |
2013-08-20 | 0.404 ppb |
2013-08-20 | 0.0342 ppb |
2013-11-21 | 0.239 ppb |
2013-11-21 | 0.108 ppb |
2013-11-21 | 0.313 ppb |
2013-11-21 | 0.111 ppb |
2013-11-22 | 0.305 ppb |
2014-02-20 | 0.411 ppb |
2014-02-20 | 0.382 ppb |
2014-02-20 | 0.142 ppb |