Chromium (hexavalent)
Liberty Utilities - Bellflower - Norwalk
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 |
---|---|---|---|---|
2013 | 0.388 ppb | 20 | 20 | 0.0530 ppb - 1.10 ppb |
2014 | 0.226 ppb | 8 | 5 | ND - 1.10 ppb |
2015 | 0.169 ppb | 13 | 2 | ND - 1.10 ppb |
2016 | 0.275 ppb | 4 | 1 | ND - 1.10 ppb |
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 |
---|---|---|
2013-05-21 | 201305210285AM | 0.320 ppb |
2013-05-21 | 201305210279AM | 1.000 ppb |
2013-05-21 | 201305210340AM | 0.0720 ppb |
2013-05-21 | 201305210287AM | 0.800 ppb |
2013-05-21 | 201305210281AM | 0.380 ppb |
2013-05-21 | 201305210335AM | 0.330 ppb |
2013-05-21 | 201305210337AM | 0.0730 ppb |
2013-05-21 | 201305210331AM | 0.0770 ppb |
2013-05-21 | 201305210333AM | 0.270 ppb |
2013-05-30 | 201305300131AM | 0.340 ppb |
2013-08-28 | 201308280512AM | 0.0530 ppb |
2013-08-28 | 201308280517AM | 0.0560 ppb |
2013-11-21 | 201311220242AM | 0.830 ppb |
2013-11-21 | 201311220253AM | 0.0880 ppb |
2013-11-21 | 201311220309AM | 1.000 ppb |
2013-11-21 | 201311220317AM | 0.0930 ppb |
2013-11-21 | 201311220319AM | 0.390 ppb |
2013-11-21 | 201311220265AM | 1.10 ppb |
2013-11-21 | 201311220289AM | 0.0900 ppb |
2013-11-21 | 201311220250AM | 0.390 ppb |
2014-02-13 | 201402130468AM | 0.310 ppb |
2014-02-13 | 201402130445AM | 0.320 ppb |
2014-02-13 | 201402130464AM | 0.0380 ppb |
2014-02-13 | 201402130448AM | 0.0400 ppb |
2014-12-22 | 9588-026-1315 | ND |
2014-12-22 | 9588-025-1300 | ND |
2014-12-22 | 9588-016-0810 | ND |
2014-12-22 | 9588-031-0850 | 1.10 ppb |
2015-03-12 | 9588-025-0920 | ND |
2015-03-12 | 9588-026-0850 | ND |
2015-05-21 | 9588-031-0915 | ND |
2015-05-29 | 9588-016-1020 | ND |
2015-06-18 | 9588-026-0900 | ND |
2015-06-18 | 9588-031-0825 | 1.10 ppb |
2015-06-18 | 9588-025-1325 | ND |
2015-06-18 | 9588-016-0805 | ND |
2015-09-14 | 9588-026-0932 | ND |
2015-09-14 | 9588-031-1005 | ND |
2015-09-14 | 9588-016-1045 | ND |
2015-09-24 | 9588-025-0930 | ND |
2015-12-15 | 9588-031-0945 | 1.10 ppb |
2016-04-07 | 9588-026-1320 | ND |
2016-04-07 | 9588-025-1230 | ND |
2016-04-07 | 9588-031-1415 | 1.10 ppb |
2016-04-08 | 9588-016-0920 | ND |