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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

South Gate Water Department

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).

 

92

Samples

0

Samples exceeding legal limit (MCL)

74

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20131.30 ppb1816ND - 3.10 ppb
20141.78 ppb1912ND - 9.20 ppb
20157.70 ppb226.20 ppb - 9.20 ppb
20164.55 ppb28280.560 ppb - 10.00 ppb
20171.65 ppb159ND - 5.30 ppb
20181.53 ppb43ND - 3.30 ppb
20192.07 ppb64ND - 3.90 ppb

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
2013-03-28440-42127-11.20 ppb
2013-03-28440-42127-21.90 ppb
2013-06-13440-49196-1ND
2013-06-13440-49196-30.550 ppb
2013-09-2629058411.50 ppb
2013-09-2629073640.0600 ppb
2013-09-2629058520.0600 ppb
2013-09-2629058452.40 ppb
2013-09-2629059080.590 ppb
2013-09-2629073811.30 ppb
2013-09-2629058292.20 ppb
2013-09-2629073983.10 ppb
2013-09-2629073681.30 ppb
2013-09-2629073931.40 ppb
2013-09-2629073941.60 ppb
2013-09-2629073653.10 ppb
2013-12-122946500ND
2013-12-1229464681.20 ppb
2014-03-274C27045-08A0.920 ppb
2014-03-274C27045-07A2.20 ppb
2014-03-274C27045-04A0.590 ppb
2014-03-274C27045-05A1.40 ppb
2014-03-274C27045-01AND
2014-03-274C27045-03A1.60 ppb
2014-03-274C27045-02A4.10 ppb
2014-06-139588-024-00001.30 ppb
2014-06-139588-016-00001.30 ppb
2014-06-139588-014-0000ND
2014-06-139588-009-00008.50 ppb
2014-06-139588-008-0000ND
2014-06-139588-007-0000ND
2014-10-099588-007-1201ND
2014-10-099588-008-1152ND
2014-10-099588-024-11191.40 ppb
2014-10-099588-016-10551.40 ppb
2014-10-099588-014-1317ND
2014-10-099588-009-11369.20 ppb
2015-09-179588-009-09546.20 ppb
2015-10-089588-009-09299.20 ppb
2016-01-149588-009-110010.00 ppb
2016-04-149588-009-11019.90 ppb
2016-07-149588-009-09227.00 ppb
2016-09-079440-021-09145.20 ppb
2016-09-079440-007-09470.610 ppb
2016-09-079440-008-09280.560 ppb
2016-09-079440-021-09175.10 ppb
2016-09-079440-009-08587.60 ppb
2016-09-129440-021-08185.30 ppb
2016-09-129440-021-08155.70 ppb
2016-09-199440-007-09030.590 ppb
2016-09-199440-021-08405.20 ppb
2016-09-199440-009-08506.90 ppb
2016-09-199440-008-09070.660 ppb
2016-09-199440-021-08374.70 ppb
2016-10-039588-021-09553.90 ppb
2016-10-129588-021-11135.00 ppb
2016-10-139588-009-09579.20 ppb
2016-10-249588-021-09594.60 ppb
2016-10-319588-021-10184.20 ppb
2016-11-099588-021-10163.80 ppb
2016-11-149588-021-10223.80 ppb
2016-11-239588-021-09513.60 ppb
2016-11-289588-021-10243.40 ppb
2016-12-059588-021-09582.90 ppb
2016-12-129588-021-07413.00 ppb
2016-12-199588-021-11512.80 ppb
2016-12-269588-021-08232.20 ppb
2017-01-049588-009-10094.20 ppb
2017-01-049588-008-0916ND
2017-01-049588-007-0923ND
2017-01-049588-021-09362.60 ppb
2017-01-099588-021-09012.20 ppb
2017-01-129588-009-10503.80 ppb
2017-01-189588-021-09282.00 ppb
2017-01-259588-021-08401.70 ppb
2017-04-129588-009-11045.30 ppb
2017-07-129588-009-1040ND
2017-10-119588-009-11011.90 ppb
2017-10-119588-014-1146ND
2017-10-119588-016-1224ND
2017-10-119588-007-1035ND
2017-10-119588-024-12521.10 ppb
2018-03-299588-009-0857ND
2018-04-259588-009-09401.000 ppb
2018-07-239588-009-10451.80 ppb
2018-10-179588-009-10053.30 ppb
2019-01-169588-009-09202.90 ppb
2019-04-109588-009-11452.40 ppb
2019-07-109588-009-10113.20 ppb
2019-10-169588-009-09503.90 ppb
2019-11-209588-008-1045ND
2019-12-309588-007-1148ND