Chromium (hexavalent)
Aqua Pa Uwchlan
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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | 0.208 ppb | 32 | 32 | 0.130 ppb - 0.320 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 |
---|---|---|
2015-03-20 | AE69556 | 0.220 ppb |
2015-03-20 | AE69555 | 0.230 ppb |
2015-03-20 | AE69554 | 0.130 ppb |
2015-03-20 | AE69552 | 0.180 ppb |
2015-03-20 | AE69553 | 0.150 ppb |
2015-03-20 | AE69550 | 0.240 ppb |
2015-03-20 | AE69551 | 0.260 ppb |
2015-03-25 | AE70006 | 0.130 ppb |
2015-03-25 | AE70003 | 0.190 ppb |
2015-03-25 | AE70000 | 0.230 ppb |
2015-03-25 | AE69997 | 0.150 ppb |
2015-03-25 | AE70009 | 0.140 ppb |
2015-03-25 | AE70015 | 0.300 ppb |
2015-03-25 | AE70012 | 0.170 ppb |
2015-06-04 | AE78272 | 0.240 ppb |
2015-06-04 | AE78275 | 0.170 ppb |
2015-09-16 | AE92713 | 0.290 ppb |
2015-09-16 | AE92722 | 0.190 ppb |
2015-09-16 | AE92725 | 0.130 ppb |
2015-09-16 | AE92716 | 0.150 ppb |
2015-09-16 | AE92698 | 0.140 ppb |
2015-09-16 | AE92702 | 0.210 ppb |
2015-09-16 | AE92700 | 0.290 ppb |
2015-09-16 | AE92704 | 0.270 ppb |
2015-09-16 | AE92706 | 0.210 ppb |
2015-09-16 | AE92708 | 0.320 ppb |
2015-09-16 | AE92710 | 0.220 ppb |
2015-09-16 | AE92719 | 0.190 ppb |
2015-09-16 | AE92696 | 0.250 ppb |
2015-09-16 | AE92728 | 0.230 ppb |
2015-12-11 | AF02220 | 0.270 ppb |
2015-12-11 | AF02244 | 0.180 ppb |