Chromium (hexavalent)
City of Kilgore
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).
12
Samples
0
Samples exceeding legal limit (MCL)
11
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.0554 ppb | 6 | 6 | 0.0327 ppb - 0.113 ppb |
| 2015 | 0.0766 ppb | 6 | 5 | ND - 0.229 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 |
|---|---|---|
| 2014-08-05 | 4H12007-02 | 0.113 ppb |
| 2014-08-05 | 4H12007-04 | 0.0508 ppb |
| 2014-08-05 | 4H12007-01 | 0.0415 ppb |
| 2014-08-05 | 4H12007-03 | 0.0394 ppb |
| 2014-11-05 | 4K07006-01 | 0.0552 ppb |
| 2014-11-05 | 4K07006-02 | 0.0327 ppb |
| 2015-02-03 | 5B06002-04 | 0.110 ppb |
| 2015-02-03 | 5B06002-01 | 0.0359 ppb |
| 2015-02-03 | 5B06002-03 | 0.0419 ppb |
| 2015-02-03 | 5B06002-02 | 0.229 ppb |
| 2015-05-07 | 5E13014-02 | ND |
| 2015-05-07 | 5E13014-01 | 0.0428 ppb |