Chromium (hexavalent)
Lee County Utilities
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).
27
Samples
0
Samples exceeding legal limit (MCL)
18
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.0757 ppb | 27 | 18 | ND - 0.280 ppb |
| 2014 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|
| 2013-03-04 | 0.280 ppb |
| 2013-03-04 | 0.0450 ppb |
| 2013-03-06 | ND |
| 2013-03-06 | 0.0300 ppb |
| 2013-03-06 | 0.0600 ppb |
| 2013-03-06 | ND |
| 2013-03-13 | ND |
| 2013-03-28 | ND |
| 2013-03-28 | 0.0810 ppb |
| 2013-03-28 | ND |
| 2013-03-28 | 0.0370 ppb |
| 2013-03-29 | 0.250 ppb |
| 2013-03-29 | 0.120 ppb |
| 2013-06-05 | 0.0850 ppb |
| 2013-06-05 | ND |
| 2013-09-09 | 0.0590 ppb |
| 2013-09-09 | ND |
| 2013-09-09 | ND |
| 2013-09-09 | 0.0830 ppb |
| 2013-09-10 | ND |
| 2013-09-10 | 0.0590 ppb |
| 2013-09-10 | 0.0840 ppb |
| 2013-09-10 | 0.190 ppb |
| 2013-09-11 | 0.230 ppb |
| 2013-09-11 | 0.270 ppb |
| 2013-12-02 | 0.0490 ppb |
| 2013-12-02 | 0.0310 ppb |