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EWG's Tap Water Database — 2021 UPDATE

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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).

MORE ABOUT THIS CONTAMINANT

 

45

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.388 ppb20200.0530 ppb - 1.10 ppb
20140.226 ppb85ND - 1.10 ppb
20150.169 ppb132ND - 1.10 ppb
20160.275 ppb41ND - 1.10 ppb
2017N/A00N/A
2018N/A00N/A
2019N/A00N/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
2013-05-21201305210285AM0.320 ppb
2013-05-21201305210279AM1.000 ppb
2013-05-21201305210340AM0.0720 ppb
2013-05-21201305210287AM0.800 ppb
2013-05-21201305210281AM0.380 ppb
2013-05-21201305210335AM0.330 ppb
2013-05-21201305210337AM0.0730 ppb
2013-05-21201305210331AM0.0770 ppb
2013-05-21201305210333AM0.270 ppb
2013-05-30201305300131AM0.340 ppb
2013-08-28201308280512AM0.0530 ppb
2013-08-28201308280517AM0.0560 ppb
2013-11-21201311220242AM0.830 ppb
2013-11-21201311220253AM0.0880 ppb
2013-11-21201311220309AM1.000 ppb
2013-11-21201311220317AM0.0930 ppb
2013-11-21201311220319AM0.390 ppb
2013-11-21201311220265AM1.10 ppb
2013-11-21201311220289AM0.0900 ppb
2013-11-21201311220250AM0.390 ppb
2014-02-13201402130468AM0.310 ppb
2014-02-13201402130445AM0.320 ppb
2014-02-13201402130464AM0.0380 ppb
2014-02-13201402130448AM0.0400 ppb
2014-12-229588-026-1315ND
2014-12-229588-025-1300ND
2014-12-229588-016-0810ND
2014-12-229588-031-08501.10 ppb
2015-03-129588-025-0920ND
2015-03-129588-026-0850ND
2015-05-219588-031-0915ND
2015-05-299588-016-1020ND
2015-06-189588-026-0900ND
2015-06-189588-031-08251.10 ppb
2015-06-189588-025-1325ND
2015-06-189588-016-0805ND
2015-09-149588-026-0932ND
2015-09-149588-031-1005ND
2015-09-149588-016-1045ND
2015-09-249588-025-0930ND
2015-12-159588-031-09451.10 ppb
2016-04-079588-026-1320ND
2016-04-079588-025-1230ND
2016-04-079588-031-14151.10 ppb
2016-04-089588-016-0920ND