Chromium (hexavalent)
Village of Caledonia Water Utility
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 |
|---|---|---|---|---|
| 2014 | 0.198 ppb | 12 | 12 | 0.166 ppb - 0.235 ppb |
| 2015 | 0.233 ppb | 4 | 4 | 0.205 ppb - 0.258 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 |
|---|---|---|
| 2014-06-24 | 799127-11624 | 0.235 ppb |
| 2014-06-24 | 799131-11624 | 0.206 ppb |
| 2014-06-24 | 799129-11624 | 0.196 ppb |
| 2014-06-24 | 799125-11624 | 0.189 ppb |
| 2014-09-15 | 818379-12317 | 0.227 ppb |
| 2014-09-15 | 818368-12317 | 0.197 ppb |
| 2014-09-15 | 818366-12317 | 0.203 ppb |
| 2014-09-15 | 818377-12317 | 0.200 ppb |
| 2014-12-09 | 835161-13027 | 0.173 ppb |
| 2014-12-09 | 835159-13027 | 0.166 ppb |
| 2014-12-09 | 835156-13027 | 0.166 ppb |
| 2014-12-09 | 835154-13027 | 0.216 ppb |
| 2015-03-12 | 848383-13618 | 0.253 ppb |
| 2015-03-12 | 848385-13618 | 0.258 ppb |
| 2015-03-12 | 848389-13618 | 0.217 ppb |
| 2015-03-12 | 848387-13618 | 0.205 ppb |