Chromium (hexavalent)
Kearns Improvement 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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.620 ppb | 13 | 12 | ND - 2.91 ppb |
2015 | 0.389 ppb | 2 | 2 | 0.244 ppb - 0.534 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 | Result |
---|---|
2014-03-25 | ND |
2014-04-28 | 1.30 ppb |
2014-04-28 | 0.131 ppb |
2014-04-28 | 0.182 ppb |
2014-04-28 | 0.185 ppb |
2014-04-29 | 0.545 ppb |
2014-07-15 | 0.0530 ppb |
2014-07-15 | 0.0880 ppb |
2014-10-13 | 2.91 ppb |
2014-10-13 | 0.222 ppb |
2014-10-13 | 0.265 ppb |
2014-10-13 | 2.03 ppb |
2014-10-13 | 0.136 ppb |
2015-01-06 | 0.244 ppb |
2015-01-06 | 0.534 ppb |