Chromium (hexavalent)
Anderson County Water Authority
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)
14
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.0548 ppb | 16 | 14 | ND - 0.0840 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 |
|---|---|
| 2015-01-20 | 0.0450 ppb |
| 2015-01-20 | 0.0440 ppb |
| 2015-01-20 | 0.0510 ppb |
| 2015-01-20 | 0.0490 ppb |
| 2015-04-27 | 0.0700 ppb |
| 2015-04-27 | 0.0710 ppb |
| 2015-06-18 | 0.0800 ppb |
| 2015-06-18 | 0.0820 ppb |
| 2015-07-22 | 0.0730 ppb |
| 2015-07-22 | 0.0840 ppb |
| 2015-07-22 | 0.0760 ppb |
| 2015-07-22 | 0.0750 ppb |
| 2015-10-13 | 0.0430 ppb |
| 2015-10-13 | 0.0340 ppb |
| 2015-10-13 | ND |
| 2015-10-13 | ND |