Chromium (hexavalent)
Pennsylvania American Water Pittsburgh
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).
16
Samples
0
Samples exceeding legal limit (MCL)
16
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.305 ppb | 4 | 4 | 0.150 ppb - 0.470 ppb |
| 2015 | 0.358 ppb | 12 | 12 | 0.0400 ppb - 0.730 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 |
|---|---|---|
| 2014-10-07 | 27111601 | 0.160 ppb |
| 2014-10-07 | 27347101 | 0.470 ppb |
| 2014-10-07 | 27347001 | 0.150 ppb |
| 2014-10-13 | 27112801 | 0.440 ppb |
| 2015-01-12 | 27898801 | 0.110 ppb |
| 2015-01-13 | 27898701 | 0.180 ppb |
| 2015-01-13 | 27898201 | 0.0400 ppb |
| 2015-01-13 | 27897401 | 0.0600 ppb |
| 2015-04-08 | 28579701 | 0.730 ppb |
| 2015-04-08 | 28580301 | 0.610 ppb |
| 2015-04-08 | 28580501 | 0.350 ppb |
| 2015-04-13 | 28580601 | 0.360 ppb |
| 2015-07-08 | 29576801 | 0.710 ppb |
| 2015-07-15 | 29576101 | 0.220 ppb |
| 2015-07-15 | 29576701 | 0.640 ppb |
| 2015-07-15 | 29574501 | 0.280 ppb |