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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Banning

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

 

238

Samples

0

Samples exceeding legal limit (MCL)

158

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20135.74 ppb51510.350 ppb - 19.0 ppb
20147.55 ppb158ND - 22.0 ppb
20157.50 ppb6133ND - 24.0 ppb
20167.37 ppb6337ND - 25.0 ppb
20176.70 ppb4829ND - 21.0 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
2013-01-09B3A0840-03A0.470 ppb
2013-01-09B3A0840-010.520 ppb
2013-01-09B3A0840-1110.00 ppb
2013-01-09B3A0840-09A5.30 ppb
2013-01-09B3A0840-07A0.420 ppb
2013-01-09B3A0840-05A0.430 ppb
2013-01-16B3A1607-11A9.20 ppb
2013-01-16B3A1607-03A0.430 ppb
2013-01-16B3A1607-01A0.470 ppb
2013-01-16B3A1607-09A0.390 ppb
2013-01-16B3A1607-13A15.0 ppb
2013-01-16B3A1607-05A0.400 ppb
2013-01-16B3A1607-07A0.380 ppb
2013-01-23B3A2295-07A9.90 ppb
2013-01-23B3A2295-05A9.30 ppb
2013-01-23B3A2295-09A18.0 ppb
2013-01-23B3A2295-01A0.370 ppb
2013-01-23B3A2295-03A16.0 ppb
2013-01-30B3A3014-03A0.710 ppb
2013-01-30B3A3014-09A0.560 ppb
2013-01-30B3A3014-01A2.10 ppb
2013-01-30B3A3014-05A4.30 ppb
2013-01-30B3A3014-07A0.670 ppb
2013-02-06B3B0498-0513.0 ppb
2013-02-06B3B0498-03A14.0 ppb
2013-02-06B3B0498-01A0.370 ppb
2013-07-09B3G0863-050.350 ppb
2013-07-09B3G0863-010.440 ppb
2013-07-09B3G1075-038.10 ppb
2013-07-09B3G0863-030.380 ppb
2013-07-09B3G0863-070.380 ppb
2013-07-09B3G0863-090.380 ppb
2013-07-10B3G1075-0714.0 ppb
2013-07-10B3G1075-059.60 ppb
2013-07-10B3G1075-0115.0 ppb
2013-07-16B3G1566-0511.0 ppb
2013-07-16B3G1566-0110.00 ppb
2013-07-16B3G1566-0319.0 ppb
2013-07-16B3G1566-090.570 ppb
2013-07-16B3G1566-070.460 ppb
2013-07-23B3G2265-0113.0 ppb
2013-07-23B3G2265-070.370 ppb
2013-07-23B3G2265-0514.0 ppb
2013-07-23B3G2265-090.440 ppb
2013-07-23B3G2265-030.390 ppb
2013-07-24B3G2344-0311.0 ppb
2013-07-24B3G2344-070.420 ppb
2013-07-24B3G2344-090.520 ppb
2013-07-24B3G2344-059.80 ppb
2013-07-24B3G2344-0111.0 ppb
2013-10-03B3J0384-019.30 ppb
2014-12-044790-001-1000ND
2014-12-044790-002-1005ND
2014-12-044790-003-1010ND
2014-12-044790-007-1330ND
2014-12-044790-008-1340ND
2014-12-044790-009-1310ND
2014-12-044790-010-1300ND
2014-12-044790-014-112017.0 ppb
2014-12-044790-015-091016.0 ppb
2014-12-044790-016-111013.0 ppb
2014-12-044790-018-073014.0 ppb
2014-12-044790-021-11009.30 ppb
2014-12-044790-026-090010.00 ppb
2014-12-044790-027-084512.0 ppb
2014-12-044790-028-085522.0 ppb
2015-03-194790-007-1130ND
2015-03-194790-009-1110ND
2015-03-194790-010-1100ND
2015-03-194790-014-101017.0 ppb
2015-03-194790-018-093012.0 ppb
2015-03-194790-021-10209.70 ppb
2015-03-194790-026-134011.0 ppb
2015-03-234790-001-0900ND
2015-03-234790-015-100015.0 ppb
2015-03-304790-002-1150ND
2015-03-304790-003-1200ND
2015-03-304790-008-1030ND
2015-03-304790-016-114013.0 ppb
2015-03-304790-027-095013.0 ppb
2015-03-304790-028-093023.0 ppb
2015-06-244790-002-1250ND
2015-06-244790-003-1300ND
2015-06-244790-007-1230ND
2015-06-244790-008-1220ND
2015-06-244790-009-1200ND
2015-06-244790-010-1205ND
2015-06-244790-014-080017.0 ppb
2015-06-244790-015-100016.0 ppb
2015-06-244790-016-081517.0 ppb
2015-06-244790-018-090014.0 ppb
2015-06-244790-021-082510.00 ppb
2015-06-244790-026-092012.0 ppb
2015-06-254790-001-0800ND
2015-06-254790-027-08209.50 ppb
2015-06-254790-028-084024.0 ppb
2015-09-294790-001-1230ND
2015-09-294790-002-1220ND
2015-09-294790-003-1210ND
2015-09-294790-007-1150ND
2015-09-294790-008-1140ND
2015-09-294790-009-1120ND
2015-09-294790-010-1110ND
2015-09-294790-014-090017.0 ppb
2015-09-294790-015-093514.0 ppb
2015-09-294790-016-100516.0 ppb
2015-09-294790-017-10253.40 ppb
2015-09-294790-018-083013.0 ppb
2015-09-294790-021-101010.00 ppb
2015-09-294790-026-095512.0 ppb
2015-09-294790-803-094511.0 ppb
2015-12-284790-014-092016.0 ppb
2015-12-284790-016-093017.0 ppb
2015-12-284790-017-09109.30 ppb
2015-12-284790-018-064514.0 ppb
2015-12-284790-021-09409.90 ppb
2015-12-294790-803-103011.0 ppb
2015-12-304790-001-1020ND
2015-12-304790-002-1015ND
2015-12-304790-003-1010ND
2015-12-304790-007-0940ND
2015-12-304790-008-0930ND
2015-12-304790-009-0910ND
2015-12-304790-010-0900ND
2015-12-304790-015-082016.0 ppb
2015-12-304790-026-104012.0 ppb
2015-12-304790-028-103523.0 ppb
2016-03-024790-801-13259.00 ppb
2016-03-024790-802-11355.30 ppb
2016-03-024790-803-12457.10 ppb
2016-03-024790-804-09107.90 ppb
2016-03-244790-001-1030ND
2016-03-244790-002-1040ND
2016-03-244790-003-1050ND
2016-03-244790-007-1205ND
2016-03-244790-008-1150ND
2016-03-244790-009-1145ND
2016-03-244790-010-1130ND
2016-03-244790-014-101515.0 ppb
2016-03-244790-015-091515.0 ppb
2016-03-244790-016-132010.00 ppb
2016-03-244790-017-08459.30 ppb
2016-03-244790-018-083013.0 ppb
2016-03-244790-021-09509.40 ppb
2016-03-244790-028-093022.0 ppb
2016-03-244790-803-09209.50 ppb
2016-06-224790-001-1125ND
2016-06-224790-002-1100ND
2016-06-224790-003-1055ND
2016-06-224790-007-1045ND
2016-06-224790-008-1035ND
2016-06-224790-009-1020ND
2016-06-224790-010-1010ND
2016-06-224790-014-090015.0 ppb
2016-06-224790-015-080014.0 ppb
2016-06-224790-016-085015.0 ppb
2016-06-224790-017-09109.10 ppb
2016-06-224790-018-092013.0 ppb
2016-06-224790-021-08209.10 ppb
2016-06-224790-803-07458.20 ppb
2016-06-244790-026-130012.0 ppb
2016-06-244790-028-090019.0 ppb
2016-09-214790-014-100016.0 ppb
2016-09-214790-015-092015.0 ppb
2016-09-214790-016-081515.0 ppb
2016-09-214790-017-074510.00 ppb
2016-09-214790-018-073013.0 ppb
2016-09-214790-021-08309.30 ppb
2016-09-214790-026-090012.0 ppb
2016-09-224790-001-0910ND
2016-09-224790-002-0920ND
2016-09-224790-003-0930ND
2016-09-224790-007-08007.40 ppb
2016-09-224790-008-0810ND
2016-09-224790-009-0830ND
2016-09-224790-010-0840ND
2016-10-114790-028-120022.0 ppb
2016-12-214790-001-0930ND
2016-12-214790-002-0925ND
2016-12-214790-003-0920ND
2016-12-214790-007-0900ND
2016-12-214790-008-0910ND
2016-12-214790-010-0850ND
2016-12-214790-014-102016.0 ppb
2016-12-214790-016-101013.0 ppb
2016-12-214790-017-14159.60 ppb
2016-12-214790-018-080013.0 ppb
2016-12-214790-021-10009.40 ppb
2016-12-214790-027-142512.0 ppb
2016-12-224790-028-104625.0 ppb
2017-02-234790-801-14054.90 ppb
2017-02-234790-802-13354.80 ppb
2017-02-234790-803-14311.10 ppb
2017-02-234790-804-1301ND
2017-05-114790-011-1245ND
2017-05-114790-012-1330ND
2017-05-124790-007-1340ND
2017-05-124790-010-1315ND
2017-05-124790-015-142714.0 ppb
2017-05-124790-027-141612.0 ppb
2017-05-244790-017-10059.80 ppb
2017-05-244790-018-095512.0 ppb
2017-05-244790-028-114015.0 ppb
2017-05-244790-801-104513.0 ppb
2017-05-244790-802-10257.10 ppb
2017-05-244790-803-111012.0 ppb
2017-05-244790-804-09151.80 ppb
2017-05-254790-001-1010ND
2017-05-254790-002-1015ND
2017-05-254790-008-0920ND
2017-05-254790-009-0935ND
2017-05-254790-016-111511.0 ppb
2017-05-254790-021-11259.90 ppb
2017-08-144790-007-1255ND
2017-08-144790-010-1315ND
2017-08-144790-015-090314.0 ppb
2017-08-144790-016-094415.0 ppb
2017-08-144790-017-07336.40 ppb
2017-08-144790-018-071513.0 ppb
2017-08-144790-021-10059.20 ppb
2017-08-144790-027-074112.0 ppb
2017-08-144790-028-083017.0 ppb
2017-09-264790-008-0950ND
2017-11-134790-001-1041ND
2017-11-134790-008-0835ND
2017-11-134790-010-0825ND
2017-11-134790-014-102516.0 ppb
2017-11-134790-015-101315.0 ppb
2017-11-134790-016-103015.0 ppb
2017-11-134790-017-09358.30 ppb
2017-11-134790-018-092511.0 ppb
2017-11-134790-027-094011.0 ppb
2017-11-134790-028-094521.0 ppb
2017-11-154790-002-1120ND
2017-11-154790-007-1100ND
2017-11-154790-009-1050ND
2017-11-154790-011-1040ND
2017-11-154790-021-12209.10 ppb