Chromium (hexavalent)
City of Idaho Falls
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).
36
Samples
0
Samples exceeding legal limit (MCL)
36
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.732 ppb | 18 | 18 | 0.390 ppb - 1.40 ppb |
| 2014 | 0.713 ppb | 18 | 18 | 0.470 ppb - 1.10 ppb |
| 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 |
|---|---|---|
| 2013-10-21 | A3I1996-23A | 0.660 ppb |
| 2013-10-21 | A3I1996-11A | 0.760 ppb |
| 2013-10-21 | A3I1996-09A | 1.40 ppb |
| 2013-10-21 | A3I1996-13A | 0.840 ppb |
| 2013-10-21 | A3I1996-05A | 0.650 ppb |
| 2013-10-21 | A3I1996-03A | 1.10 ppb |
| 2013-10-21 | A3I1996-07A | 0.630 ppb |
| 2013-10-21 | A3I1996-25A | 0.530 ppb |
| 2013-10-21 | A3I1996-01A | 0.810 ppb |
| 2013-10-21 | A3I1996-33A | 0.550 ppb |
| 2013-10-21 | A3I1996-35A | 0.550 ppb |
| 2013-10-21 | A3I1996-31A | 0.590 ppb |
| 2013-10-21 | A3I1996-27A | 1.000 ppb |
| 2013-10-21 | A3I1996-19A | 0.610 ppb |
| 2013-10-21 | A3I1996-21A | 0.810 ppb |
| 2013-10-21 | A3I1996-29A | 0.610 ppb |
| 2013-10-21 | A3I1996-17A | 0.690 ppb |
| 2013-11-04 | A3J2171-03A | 0.390 ppb |
| 2014-04-07 | A4C1154-05A | 0.650 ppb |
| 2014-04-07 | A4C1154-01A | 0.540 ppb |
| 2014-04-07 | A4C1154-13A | 0.820 ppb |
| 2014-04-07 | A4C1154-21A | 0.860 ppb |
| 2014-04-07 | A4C1154-11A | 0.600 ppb |
| 2014-04-07 | A4C1154-17A | 0.730 ppb |
| 2014-04-07 | A4C1154-15A | 0.470 ppb |
| 2014-04-07 | A4C1154-23A | 0.760 ppb |
| 2014-04-07 | A4C1154-03A | 0.520 ppb |
| 2014-04-07 | A4C1154-09A | 1.10 ppb |
| 2014-04-07 | A4C1154-19A | 0.540 ppb |
| 2014-04-07 | A4C1154-07A | 0.620 ppb |
| 2014-04-07 | A4C1154-27A | 1.000 ppb |
| 2014-04-07 | A4C1154-29A | 0.550 ppb |
| 2014-04-07 | A4C1154-25A | 0.560 ppb |
| 2014-04-07 | A4C1154-31A | 0.790 ppb |
| 2014-04-07 | A4C1154-35A | 0.630 ppb |
| 2014-04-07 | A4C1154-33A | 1.10 ppb |