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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

East Bay Municipal Utility District

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND140ND
2014ND340ND
2015ND100ND
2016ND70ND
2017ND90ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-268201-009-0915ND
2012-07-108201-004-0648ND
2012-07-108201-012-0800ND
2012-07-178201-005-0905ND
2012-07-188201-005-1350ND
2012-07-188201-011-0853ND
2013-03-198201-011-0820ND
2013-07-118201-005-1025ND
2013-07-158201-005-1235ND
2013-07-238201-012-0839ND
2013-07-238201-009-1030ND
2013-07-238201-004-0745ND
2013-10-09B3J1229-01ND
2013-10-09B3J1229-10ND
2013-10-09B3J1229-04ND
2013-10-09B3J1237-03ND
2013-10-09B3J1237-07ND
2013-10-09B3J1237-05ND
2013-10-09B3J1237-01ND
2013-10-09B3J1229-07ND
2014-01-08B4A0937-01ND
2014-01-08B4A0937-05ND
2014-01-08B4A0937-03ND
2014-01-08B4A0937-08ND
2014-02-25B4B2486-01ND
2014-02-25B4B2486-04ND
2014-04-088201-011-0820ND
2014-04-09B4D1270-19ND
2014-04-09B4D1270-13ND
2014-04-09B4D1270-17ND
2014-04-09B4D1270-01ND
2014-04-09B4D1270-10ND
2014-04-09B4D1270-04ND
2014-04-09B4D1270-15ND
2014-04-09B4D1270-07ND
2014-04-238201-005-0720ND
2014-04-29B4E0018-01ND
2014-04-29B4E0018-04ND
2014-06-168201-009-0915ND
2014-06-178201-012-1030ND
2014-06-178201-004-0900ND
2014-07-09B4G1282-01ND
2014-07-09B4G1293-01ND
2014-07-09B4G1292-01ND
2014-07-09B4G1278-01ND
2014-07-09B4G1291-01ND
2014-07-09B4G1290-01ND
2014-07-09B4G1285-01ND
2014-07-09B4G1269-01ND
2014-07-16B4G1982-01ND
2014-07-16B4G1982-04ND
2014-09-108201-005-0905ND
2014-10-09B4J1130-01ND
2014-10-09B4J1130-04ND
2015-01-07B5A0784-04ND
2015-01-07B5A0784-01ND
2015-07-098201-005-0809ND
2015-07-158201-009-0750ND
2015-07-218201-011-0835ND
2015-07-218201-012-0850ND
2015-07-288201-004-1035ND
2015-07-308201-005-1212ND
2015-09-168201-012-0930ND
2015-12-168201-013-0955ND
2016-02-168201-013-0910ND
2016-06-138201-005-0815ND
2016-06-298201-004-0845ND
2016-06-298201-012-0843ND
2016-07-058201-005-0911ND
2016-07-128201-009-0900ND
2016-10-251610-011-0840ND
2017-02-011610-012-0728ND
2017-02-011610-004-0905ND
2017-02-218201-013-0825ND
2017-02-228201-011-0855ND
2017-02-228201-009-0850ND
2017-06-278201-004-0810ND
2017-06-278201-012-0910ND
2017-06-288201-005-0903ND
2017-07-268201-005-0913ND