Chromium (hexavalent)
Western Allegheny County Mun A
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).
32
Samples
0
Samples exceeding legal limit (MCL)
30
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.258 ppb | 24 | 22 | ND - 0.650 ppb |
| 2015 | 0.283 ppb | 8 | 8 | 0.210 ppb - 0.340 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 |
|---|---|---|
| 2014-06-11 | 201406130373AM | 0.190 ppb |
| 2014-06-11 | 201406130385AM | 0.220 ppb |
| 2014-06-11 | 201406130280AM | 0.190 ppb |
| 2014-06-11 | 201406130287AM | 0.170 ppb |
| 2014-06-11 | 201406130306AM | 0.220 ppb |
| 2014-06-11 | 201406130403AM | 0.230 ppb |
| 2014-06-11 | 201406130298AM | 0.190 ppb |
| 2014-06-12 | 201406130317AM | ND |
| 2014-09-10 | 201409120811AM | ND |
| 2014-09-10 | 201409120592AM | 0.540 ppb |
| 2014-09-10 | 201409120821AM | 0.610 ppb |
| 2014-09-10 | 201409120959AM | 0.650 ppb |
| 2014-09-10 | 201409120955AM | 0.570 ppb |
| 2014-09-10 | 201409120953AM | 0.590 ppb |
| 2014-09-10 | 201409120961AM | 0.610 ppb |
| 2014-09-10 | 201409120816AM | 0.520 ppb |
| 2014-12-10 | 201412120402AM | 0.0770 ppb |
| 2014-12-10 | 201412120412AM | 0.0660 ppb |
| 2014-12-10 | 201412120288AM | 0.0760 ppb |
| 2014-12-10 | 201412120380AM | 0.140 ppb |
| 2014-12-10 | 201412120295AM | 0.0980 ppb |
| 2014-12-10 | 201412120273AM | 0.0530 ppb |
| 2014-12-10 | 201412120282AM | 0.0910 ppb |
| 2014-12-11 | 201412120373AM | 0.0840 ppb |
| 2015-03-11 | 201503120566AM | 0.220 ppb |
| 2015-03-11 | 201503120560AM | 0.280 ppb |
| 2015-03-11 | 201503120556AM | 0.210 ppb |
| 2015-03-11 | 201503120584AM | 0.330 ppb |
| 2015-03-11 | 201503120598AM | 0.310 ppb |
| 2015-03-11 | 201503120637AM | 0.340 ppb |
| 2015-03-11 | 201503130151AM | 0.270 ppb |
| 2015-03-11 | 201503120619AM | 0.300 ppb |