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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

East Bay Municipal Utility District

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).

 

62

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0494 ppb880.0320 ppb - 0.0660 ppb
20140.0456 ppb3126ND - 0.110 ppb
20150.0185 ppb112ND - 0.130 ppb
2016ND70ND
2017ND50ND
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
2013-10-09B3J1229-040.0320 ppb
2013-10-09B3J1229-100.0500 ppb
2013-10-09B3J1229-010.0500 ppb
2013-10-09B3J1237-030.0420 ppb
2013-10-09B3J1237-070.0540 ppb
2013-10-09B3J1237-050.0560 ppb
2013-10-09B3J1237-010.0660 ppb
2013-10-09B3J1229-070.0450 ppb
2014-01-08B4A0937-050.0560 ppb
2014-01-08B4A0937-080.0560 ppb
2014-01-08B4A0937-030.0450 ppb
2014-01-08B4A0937-010.0600 ppb
2014-02-25B4B2486-010.0490 ppb
2014-03-10B4C1207-010.0350 ppb
2014-04-09B4D1270-130.0620 ppb
2014-04-09B4D1270-150.0580 ppb
2014-04-09B4D1270-190.0670 ppb
2014-04-09B4D1270-170.0650 ppb
2014-04-09B4D1270-040.0420 ppb
2014-04-09B4D1270-100.0540 ppb
2014-04-09B4D1270-070.0410 ppb
2014-04-09B4D1270-010.0520 ppb
2014-04-29B4E0018-040.0570 ppb
2014-04-29B4E0018-010.0880 ppb
2014-07-09B4G1293-010.0540 ppb
2014-07-09B4G1291-010.0300 ppb
2014-07-09B4G1290-01ND
2014-07-09B4G1282-010.0390 ppb
2014-07-09B4G1292-010.0450 ppb
2014-07-09B4G1278-010.0450 ppb
2014-07-09B4G1269-010.0320 ppb
2014-07-09B4G1285-01ND
2014-07-104790-005-09000.0410 ppb
2014-07-144790-009-09000.0470 ppb
2014-07-164790-011-08430.110 ppb
2014-09-104790-005-0908ND
2014-10-084790-012-1245ND
2014-10-09B4J1130-040.0840 ppb
2014-12-02B4L0634-01ND
2015-01-07B5A0784-040.0730 ppb
2015-01-07B5A0784-01ND
2015-07-091610-005-0809ND
2015-07-211610-012-0850ND
2015-07-211610-011-0822ND
2015-08-051610-009-0745ND
2015-08-051610-004-0930ND
2015-08-121610-005-1044ND
2015-09-161610-012-0935ND
2015-11-18B5K2033-010.130 ppb
2015-12-161610-013-0950ND
2016-02-161610-013-0920ND
2016-06-131610-005-0838ND
2016-06-291610-012-0900ND
2016-06-291610-004-0905ND
2016-07-051610-005-0921ND
2016-07-121610-009-0900ND
2016-10-251610-011-0840ND
2017-02-011610-004-0905ND
2017-02-011610-012-0728ND
2017-02-211610-013-0835ND
2017-02-221610-011-0905ND
2017-02-221610-009-0850ND