Chromium (hexavalent)
White City WID
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).
16
Samples
0
Samples exceeding legal limit (MCL)
16
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.411 ppb | 15 | 15 | 0.0301 ppb - 0.716 ppb |
| 2014 | 0.495 ppb | 1 | 1 | 0.495 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 |
|---|---|
| 2013-06-07 | 0.657 ppb |
| 2013-06-07 | 0.657 ppb |
| 2013-06-07 | 0.314 ppb |
| 2013-06-07 | 0.716 ppb |
| 2013-06-07 | 0.0789 ppb |
| 2013-06-07 | 0.0649 ppb |
| 2013-06-07 | 0.480 ppb |
| 2013-12-12 | 0.283 ppb |
| 2013-12-12 | 0.571 ppb |
| 2013-12-12 | 0.649 ppb |
| 2013-12-12 | 0.594 ppb |
| 2013-12-12 | 0.0301 ppb |
| 2013-12-12 | 0.0718 ppb |
| 2013-12-12 | 0.686 ppb |
| 2013-12-12 | 0.307 ppb |
| 2014-06-17 | 0.495 ppb |