Chromium (hexavalent)
Bethesda WSC
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).
72
Samples
0
Samples exceeding legal limit (MCL)
29
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.0286 ppb | 72 | 29 | ND - 0.111 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 | Lab ID | Result |
|---|---|---|
| 2013-02-18 | 3B21032-25 | ND |
| 2013-02-18 | 3B21032-05 | ND |
| 2013-02-18 | 3B21032-09 | ND |
| 2013-02-18 | 3B21032-02 | 0.0474 ppb |
| 2013-02-18 | 3B21032-10 | ND |
| 2013-02-18 | 3B21032-15 | 0.0626 ppb |
| 2013-02-18 | 3B21032-20 | ND |
| 2013-02-18 | 3B21032-13 | 0.0619 ppb |
| 2013-02-18 | 3B21032-08 | ND |
| 2013-02-18 | 3B21032-23 | 0.0612 ppb |
| 2013-02-18 | 3B21032-06 | 0.0683 ppb |
| 2013-02-18 | 3B21032-14 | ND |
| 2013-02-18 | 3B21032-07 | ND |
| 2013-02-18 | 3B21032-19 | 0.0442 ppb |
| 2013-02-18 | 3B21032-04 | ND |
| 2013-02-18 | 3B21032-24 | ND |
| 2013-02-18 | 3B21032-18 | ND |
| 2013-02-18 | 3B21032-16 | ND |
| 2013-02-18 | 3B21032-26 | 0.0589 ppb |
| 2013-02-18 | 3B21032-21 | ND |
| 2013-02-18 | 3B21032-17 | ND |
| 2013-02-18 | 3B21032-11 | ND |
| 2013-02-18 | 3B21032-01 | ND |
| 2013-02-18 | 3B21032-03 | ND |
| 2013-02-18 | 3B21032-22 | ND |
| 2013-02-18 | 3B21032-12 | ND |
| 2013-02-28 | 3C06024-07 | ND |
| 2013-02-28 | 3C06024-02 | ND |
| 2013-02-28 | 3C06024-05 | ND |
| 2013-02-28 | 3C06024-08 | ND |
| 2013-02-28 | 3C06024-06 | ND |
| 2013-02-28 | 3C06024-01 | ND |
| 2013-02-28 | 3C06024-03 | ND |
| 2013-02-28 | 3C06024-04 | ND |
| 2013-05-22 | 3E24006-01 | 0.0337 ppb |
| 2013-05-22 | 3E24006-02 | ND |
| 2013-08-12 | 3H20013-14A | 0.104 ppb |
| 2013-08-12 | 3H20013-15A | 0.111 ppb |
| 2013-08-12 | 3H20013-19A | 0.0458 ppb |
| 2013-08-12 | 3H20013-17A | 0.109 ppb |
| 2013-08-12 | 3H20013-24A | 0.0663 ppb |
| 2013-08-12 | 3H20013-29A | 0.0731 ppb |
| 2013-08-12 | 3H20013-26A | 0.0668 ppb |
| 2013-08-12 | 3H20013-13A | 0.0654 ppb |
| 2013-08-12 | 3H20013-12A | ND |
| 2013-08-12 | 3H20013-20A | 0.0700 ppb |
| 2013-08-12 | 3H20013-18A | 0.0828 ppb |
| 2013-08-12 | 3H20013-10A | ND |
| 2013-08-12 | 3H20013-02A | 0.0946 ppb |
| 2013-08-12 | 3H20013-21A | 0.0506 ppb |
| 2013-08-12 | 3H20013-08A | 0.105 ppb |
| 2013-08-12 | 3H20013-22A | 0.0362 ppb |
| 2013-08-13 | 3H20013-25A | ND |
| 2013-08-13 | 3H20013-04A | 0.0393 ppb |
| 2013-08-13 | 3H20013-34A | ND |
| 2013-08-13 | 3H20013-27A | ND |
| 2013-08-13 | 3H20013-28A | ND |
| 2013-08-13 | 3H20013-30A | 0.0704 ppb |
| 2013-08-13 | 3H20013-31A | ND |
| 2013-08-13 | 3H20013-32A | 0.0891 ppb |
| 2013-08-13 | 3H20013-23A | 0.0872 ppb |
| 2013-08-13 | 3H20013-05A | ND |
| 2013-08-13 | 3H20013-03A | ND |
| 2013-08-13 | 3H20013-16A | ND |
| 2013-08-13 | 3H20013-33A | 0.0996 ppb |
| 2013-08-13 | 3H20013-01A | ND |
| 2013-08-13 | 3H20013-06A | 0.0971 ppb |
| 2013-08-13 | 3H20013-09A | ND |
| 2013-08-13 | 3H20013-11A | ND |
| 2013-08-13 | 3H20013-07A | ND |
| 2013-11-14 | 3K19011-01A | 0.0555 ppb |
| 2013-11-14 | 3K19011-02A | ND |