Chromium (hexavalent)
City of Tallahassee
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).
28
Samples
0
Samples exceeding legal limit (MCL)
28
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.825 ppb | 14 | 14 | 0.0300 ppb - 1.40 ppb |
| 2015 | 0.894 ppb | 14 | 14 | 0.0800 ppb - 1.50 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 |
|---|---|
| 2014-10-15 | 0.720 ppb |
| 2014-10-15 | 1.40 ppb |
| 2014-10-15 | 0.0300 ppb |
| 2014-10-15 | 1.000 ppb |
| 2014-10-15 | 0.0700 ppb |
| 2014-10-15 | 1.40 ppb |
| 2014-10-15 | 0.880 ppb |
| 2014-10-15 | 1.40 ppb |
| 2014-10-15 | 0.940 ppb |
| 2014-10-15 | 0.110 ppb |
| 2014-10-15 | 0.840 ppb |
| 2014-10-15 | 0.910 ppb |
| 2014-10-16 | 0.550 ppb |
| 2014-10-16 | 1.30 ppb |
| 2015-04-07 | 0.750 ppb |
| 2015-04-07 | 0.980 ppb |
| 2015-04-07 | 0.800 ppb |
| 2015-04-07 | 1.40 ppb |
| 2015-04-07 | 0.940 ppb |
| 2015-04-07 | 0.0800 ppb |
| 2015-04-08 | 0.920 ppb |
| 2015-04-08 | 1.40 ppb |
| 2015-04-08 | 0.120 ppb |
| 2015-04-08 | 0.850 ppb |
| 2015-04-08 | 1.30 ppb |
| 2015-04-08 | 1.40 ppb |
| 2015-04-08 | 0.0800 ppb |
| 2015-04-08 | 1.50 ppb |