Chromium (hexavalent)
Marshfield Water Department
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).
48
Samples
0
Samples exceeding legal limit (MCL)
48
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.296 ppb | 48 | 48 | 0.0700 ppb - 0.710 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 | Result |
|---|---|
| 2015-01-12 | 0.230 ppb |
| 2015-01-12 | 0.190 ppb |
| 2015-01-12 | 0.230 ppb |
| 2015-01-12 | 0.220 ppb |
| 2015-01-13 | 0.1000 ppb |
| 2015-01-13 | 0.180 ppb |
| 2015-01-13 | 0.420 ppb |
| 2015-01-13 | 0.580 ppb |
| 2015-01-13 | 0.150 ppb |
| 2015-01-13 | 0.340 ppb |
| 2015-01-13 | 0.200 ppb |
| 2015-01-14 | 0.300 ppb |
| 2015-01-14 | 0.210 ppb |
| 2015-01-14 | 0.530 ppb |
| 2015-01-14 | 0.110 ppb |
| 2015-01-14 | 0.320 ppb |
| 2015-01-14 | 0.280 ppb |
| 2015-01-14 | 0.240 ppb |
| 2015-01-14 | 0.110 ppb |
| 2015-01-15 | 0.270 ppb |
| 2015-01-15 | 0.270 ppb |
| 2015-03-09 | 0.710 ppb |
| 2015-03-19 | 0.640 ppb |
| 2015-03-19 | 0.410 ppb |
| 2015-07-20 | 0.200 ppb |
| 2015-07-20 | 0.0700 ppb |
| 2015-07-20 | 0.560 ppb |
| 2015-07-20 | 0.320 ppb |
| 2015-07-21 | 0.410 ppb |
| 2015-07-21 | 0.110 ppb |
| 2015-07-21 | 0.270 ppb |
| 2015-07-21 | 0.300 ppb |
| 2015-07-21 | 0.190 ppb |
| 2015-07-21 | 0.260 ppb |
| 2015-07-21 | 0.110 ppb |
| 2015-07-21 | 0.410 ppb |
| 2015-07-22 | 0.580 ppb |
| 2015-07-22 | 0.210 ppb |
| 2015-07-22 | 0.120 ppb |
| 2015-07-22 | 0.170 ppb |
| 2015-07-22 | 0.300 ppb |
| 2015-07-22 | 0.600 ppb |
| 2015-07-22 | 0.250 ppb |
| 2015-07-22 | 0.190 ppb |
| 2015-07-23 | 0.230 ppb |
| 2015-07-23 | 0.190 ppb |
| 2015-07-23 | 0.410 ppb |
| 2015-07-23 | 0.520 ppb |