Chromium (hexavalent)
Highland City
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 | 0.495 ppb | 12 | 12 | 0.255 ppb - 0.696 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 |
---|---|
2014-05-19 | 0.545 ppb |
2014-05-19 | 0.270 ppb |
2014-05-20 | 0.396 ppb |
2014-06-16 | 0.644 ppb |
2014-06-17 | 0.665 ppb |
2014-07-02 | 0.531 ppb |
2014-11-19 | 0.696 ppb |
2014-11-19 | 0.255 ppb |
2014-11-19 | 0.271 ppb |
2014-11-20 | 0.556 ppb |
2014-12-03 | 0.567 ppb |
2014-12-18 | 0.539 ppb |