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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

San Bernardino City

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

 

176

Samples

0

Samples exceeding legal limit (MCL)

128

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20131.07 ppb36360.1000 ppb - 2.30 ppb
20141.15 ppb8867ND - 3.60 ppb
2015N/A00N/A
2016N/A00N/A
20170.978 ppb4924ND - 3.60 ppb
20181.55 ppb21ND - 3.10 ppb
2019ND10ND

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
2013-07-17201307170686AM1.10 ppb
2013-07-17201307170654AM0.840 ppb
2013-07-17201307170646AM0.740 ppb
2013-07-17201307170656AM2.30 ppb
2013-07-17201307170684AM1.80 ppb
2013-07-17201307170676AM1.60 ppb
2013-07-17201307170648AM1.10 ppb
2013-07-17201307170652AM0.970 ppb
2013-07-17201307170699AM1.30 ppb
2013-07-17201307170701AM0.420 ppb
2013-07-17201307170693AM1.60 ppb
2013-07-17201307170697AM1.20 ppb
2013-07-17201307170695AM1.70 ppb
2013-07-17201307170682AM1.70 ppb
2013-07-17201307170680AM1.60 ppb
2013-07-17201307170658AM0.960 ppb
2013-07-17201307170678AM1.10 ppb
2013-07-18201307180867AM0.430 ppb
2013-07-18201307180873AM0.330 ppb
2013-07-18201307180865AM0.800 ppb
2013-07-18201307180855AM2.10 ppb
2013-07-18201307180861AM1.20 ppb
2013-07-18201307180869AM0.1000 ppb
2013-07-18201307180871AM0.320 ppb
2013-07-18201307180863AM1.70 ppb
2013-07-18201307180840AM0.150 ppb
2013-07-18201307180838AM0.800 ppb
2013-07-18201307180853AM1.10 ppb
2013-07-18201307180844AM0.480 ppb
2013-07-18201307180842AM0.450 ppb
2013-07-18201307180847AM1.50 ppb
2013-07-18201307180849AM1.60 ppb
2013-07-18201307180851AM1.10 ppb
2013-07-18201307180857AM1.10 ppb
2013-07-18201307180859AM0.310 ppb
2013-07-31201308010423AM0.910 ppb
2014-01-22201401220681AM2.90 ppb
2014-01-22201401220703AM0.970 ppb
2014-01-22201401220689AM2.70 ppb
2014-01-22201401220705AM2.20 ppb
2014-01-22201401220701AM1.90 ppb
2014-01-22201401220687AM2.00 ppb
2014-01-22201401220683AM2.70 ppb
2014-01-22201401220715AM0.980 ppb
2014-01-22201401220709AM0.530 ppb
2014-01-22201401220713AM2.40 ppb
2014-01-22201401220711AM2.50 ppb
2014-01-22201401220707AM2.60 ppb
2014-01-22201401220693AM2.40 ppb
2014-01-22201401220699AM2.40 ppb
2014-01-22201401220685AM2.20 ppb
2014-01-22201401220691AM0.790 ppb
2014-01-22201401220697AM2.20 ppb
2014-01-22201401220695AM0.960 ppb
2014-01-23201401230620AM1.60 ppb
2014-01-23201401230622AM1.20 ppb
2014-01-23201401230628AM0.320 ppb
2014-01-23201401230624AM0.0820 ppb
2014-01-23201401230657AM1.70 ppb
2014-01-23201401230626AM0.470 ppb
2014-01-23201401230671AM0.490 ppb
2014-01-23201401230669AM0.110 ppb
2014-01-23201401230667AM1.50 ppb
2014-01-23201401230665AM1.60 ppb
2014-01-23201401230673AM0.480 ppb
2014-01-23201401230661AM1.70 ppb
2014-01-23201401230663AM1.80 ppb
2014-01-23201401230659AM1.70 ppb
2014-01-23201401230651AM0.960 ppb
2014-01-23201401230655AM1.80 ppb
2014-01-23201401230653AM1.70 ppb
2014-01-28201401280684AM2.30 ppb
2014-03-104790-030-08200.840 ppb
2014-07-294790-001-05482.40 ppb
2014-07-294790-002-08500.560 ppb
2014-07-294790-003-0840ND
2014-07-294790-005-1210ND
2014-07-294790-007-09203.60 ppb
2014-07-294790-014-06471.20 ppb
2014-07-294790-015-14210.200 ppb
2014-07-294790-017-13080.500 ppb
2014-07-294790-018-1255ND
2014-07-294790-021-1120ND
2014-07-294790-022-1100ND
2014-07-294790-023-10390.150 ppb
2014-07-294790-024-10340.110 ppb
2014-07-294790-030-0820ND
2014-07-294790-032-09550.140 ppb
2014-07-294790-034-0705ND
2014-07-294790-035-1150ND
2014-07-294790-036-0540ND
2014-07-294790-037-1135ND
2014-07-294790-038-0900ND
2014-07-294790-039-0842ND
2014-07-294790-040-0825ND
2014-07-294790-041-09100.370 ppb
2014-07-294790-043-06101.50 ppb
2014-07-294790-049-06452.00 ppb
2014-07-294790-051-1440ND
2014-07-294790-053-10300.670 ppb
2014-07-294790-054-1335ND
2014-07-294790-055-0956ND
2014-07-294790-056-1007ND
2014-07-294790-062-1355ND
2014-07-294790-063-1233ND
2014-07-294790-064-13302.80 ppb
2014-07-294790-065-13153.20 ppb
2014-07-294790-066-13001.60 ppb
2014-07-294790-067-12451.80 ppb
2014-07-294790-068-12301.70 ppb
2014-07-294790-069-13451.90 ppb
2014-07-294790-113-08051.80 ppb
2014-07-294790-114-07501.50 ppb
2014-07-294790-115-07351.20 ppb
2014-07-294790-116-07201.10 ppb
2014-07-294790-117-07001.60 ppb
2014-07-294790-118-07352.50 ppb
2014-07-294790-119-07571.10 ppb
2014-07-294790-126-0615ND
2014-09-054790-008-11211.70 ppb
2014-09-054790-052-10501.20 ppb
2014-10-294790-009-15001.20 ppb
2014-10-294790-031-1509ND
2014-12-014790-012-14102.60 ppb
2017-07-269590-002-0735ND
2017-07-269590-003-08052.20 ppb
2017-07-269590-005-08281.10 ppb
2017-07-269590-007-06302.60 ppb
2017-07-269590-008-11431.60 ppb
2017-07-269590-009-11271.80 ppb
2017-07-269590-030-0830ND
2017-07-269590-031-1106ND
2017-07-269590-032-0710ND
2017-07-269590-035-0710ND
2017-07-269590-036-0630ND
2017-07-269590-037-0803ND
2017-07-269590-049-09002.50 ppb
2017-07-269590-052-12121.10 ppb
2017-07-269590-065-10303.60 ppb
2017-07-269590-066-10052.10 ppb
2017-07-269590-067-09302.00 ppb
2017-07-269590-068-09062.00 ppb
2017-07-269590-113-11001.90 ppb
2017-07-269590-114-10301.70 ppb
2017-07-269590-115-10001.30 ppb
2017-07-269590-116-09421.40 ppb
2017-07-269590-117-09271.80 ppb
2017-07-279590-001-06153.00 ppb
2017-07-279590-015-1120ND
2017-07-279590-017-0830ND
2017-07-279590-018-0800ND
2017-07-279590-021-0630ND
2017-07-279590-022-0915ND
2017-07-279590-023-0805ND
2017-07-279590-024-0839ND
2017-07-279590-025-0730ND
2017-07-279590-034-07201.20 ppb
2017-07-279590-038-1201ND
2017-07-279590-040-1110ND
2017-07-279590-041-1140ND
2017-07-279590-043-06501.80 ppb
2017-07-279590-051-1045ND
2017-07-279590-054-0930ND
2017-07-279590-056-0658ND
2017-07-279590-062-1000ND
2017-07-279590-063-0850ND
2017-07-279590-118-09583.40 ppb
2017-07-279590-119-10301.20 ppb
2017-08-029590-012-09301.40 ppb
2017-08-029590-014-10403.20 ppb
2017-08-029590-039-1320ND
2017-08-029590-053-1400ND
2017-08-299590-069-11102.00 ppb
2018-01-129590-055-0830ND
2018-02-079590-064-11303.10 ppb
2019-08-099588-117-0945ND