Chromium (hexavalent)
City of Cleburne
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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.0716 ppb | 10 | 4 | ND - 0.299 ppb |
2015 | 0.172 ppb | 15 | 12 | ND - 0.274 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 |
---|---|---|
2014-07-08 | 4G11049-06 | ND |
2014-07-08 | 4G11049-03 | 0.0332 ppb |
2014-07-08 | 4G11049-07 | ND |
2014-07-08 | 4G11049-08 | ND |
2014-07-08 | 4G11049-02 | ND |
2014-07-08 | 4G11049-04 | 0.0921 ppb |
2014-07-08 | 4G11049-01 | ND |
2014-07-08 | 4G11049-05 | ND |
2014-10-22 | 4J29006-02 | 0.292 ppb |
2014-10-22 | 4J29006-01 | 0.299 ppb |
2015-01-21 | 5A27016-12 | 0.190 ppb |
2015-01-21 | 5A27016-05 | 0.0726 ppb |
2015-01-21 | 5A27016-11 | 0.243 ppb |
2015-01-21 | 5A27016-04 | ND |
2015-01-21 | 5A27016-07 | 0.240 ppb |
2015-01-21 | 5A27016-10 | 0.263 ppb |
2015-01-21 | 5A27016-09 | 0.0683 ppb |
2015-01-21 | 5A27016-08 | 0.250 ppb |
2015-01-21 | 5A27016-13 | 0.265 ppb |
2015-01-21 | 5A27016-06 | 0.237 ppb |
2015-01-21 | 5A27016-01 | 0.202 ppb |
2015-01-21 | 5A27016-03 | ND |
2015-01-21 | 5A27016-02 | ND |
2015-04-01 | 5D07006-02 | 0.274 ppb |
2015-04-01 | 5D07006-01 | 0.269 ppb |