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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Big Bear City CSD

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

 

27

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.717 ppb124ND - 3.30 ppb
2015N/A00N/A
20162.00 ppb112.00 ppb
20170.707 ppb145ND - 3.10 ppb
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
2014-10-083761-016-10203.30 ppb
2014-10-083761-015-10401.70 ppb
2014-10-083761-014-1000ND
2014-10-083761-012-10351.80 ppb
2014-10-083761-010-1110ND
2014-10-083761-009-1100ND
2014-10-083761-008-10301.80 ppb
2014-10-083761-005-1055ND
2014-10-083761-004-1055ND
2014-10-083761-003-0755ND
2014-10-083761-002-0905ND
2014-10-083761-001-0850ND
2016-02-243761-006-11102.00 ppb
2017-05-313761-020-0800ND
2017-05-313761-021-0800ND
2017-05-313761-001-0910ND
2017-05-313761-016-09403.10 ppb
2017-05-313761-015-08401.20 ppb
2017-05-313761-014-0930ND
2017-05-313761-012-10001.70 ppb
2017-05-313761-010-1040ND
2017-05-313761-009-1020ND
2017-05-313761-008-09531.80 ppb
2017-05-313761-006-11302.10 ppb
2017-05-313761-005-1020ND
2017-05-313761-004-1015ND
2017-05-313761-002-0850ND