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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Banning

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

116

Samples

0

Samples exceeding legal limit (MCL)

49

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.205 ppb237ND - 0.930 ppb
20150.641 ppb1910ND - 2.40 ppb
20160.435 ppb197ND - 1.70 ppb
20170.563 ppb157ND - 1.70 ppb
20180.527 ppb2010ND - 1.50 ppb
20190.670 ppb208ND - 2.30 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-134790-801-1120ND
2014-02-134790-802-0930ND
2014-02-134790-803-0845ND
2014-02-134790-804-08000.880 ppb
2014-03-134790-003-0900ND
2014-03-134790-008-1000ND
2014-03-134790-016-1400ND
2014-03-184790-014-1300ND
2014-03-184790-015-0830ND
2014-03-184790-017-1000ND
2014-03-194790-009-1000ND
2014-05-154790-801-0915ND
2014-05-154790-802-09450.500 ppb
2014-05-154790-803-0830ND
2014-05-154790-804-10450.560 ppb
2014-08-134790-801-07000.570 ppb
2014-08-134790-802-0800ND
2014-08-134790-803-0730ND
2014-08-134790-804-14000.930 ppb
2014-11-134790-801-1045ND
2014-11-134790-802-10300.580 ppb
2014-11-134790-803-1100ND
2014-11-134790-804-10000.690 ppb
2015-02-104790-801-1005ND
2015-02-104790-802-09400.750 ppb
2015-02-104790-803-1030ND
2015-02-104790-804-09001.40 ppb
2015-03-184790-018-1030ND
2015-03-184790-021-0930ND
2015-03-194790-026-1340ND
2015-05-134790-801-10100.910 ppb
2015-05-134790-802-09400.620 ppb
2015-05-134790-803-1030ND
2015-05-134790-804-09201.80 ppb
2015-08-124790-801-13301.30 ppb
2015-08-124790-802-1030ND
2015-08-124790-803-1100ND
2015-08-124790-804-10001.60 ppb
2015-11-184790-801-08260.640 ppb
2015-11-184790-802-09250.760 ppb
2015-11-184790-803-0858ND
2015-11-184790-804-10102.40 ppb
2016-02-114790-801-1321ND
2016-02-174790-007-1100ND
2016-02-174790-010-1000ND
2016-02-254790-001-1030ND
2016-02-254790-002-0930ND
2016-03-094790-028-0930ND
2016-05-114790-801-13300.780 ppb
2016-05-114790-802-11301.30 ppb
2016-05-114790-803-1305ND
2016-05-114790-804-10251.30 ppb
2016-08-114790-801-1300ND
2016-08-114790-802-1030ND
2016-08-114790-803-1250ND
2016-08-114790-804-10001.40 ppb
2016-08-254790-027-0930ND
2016-12-014790-801-12400.910 ppb
2016-12-014790-802-11400.880 ppb
2016-12-014790-803-1215ND
2016-12-014790-804-10241.70 ppb
2017-02-234790-801-14051.30 ppb
2017-02-234790-802-13351.30 ppb
2017-02-234790-803-14310.970 ppb
2017-02-234790-804-13011.20 ppb
2017-03-064790-008-1130ND
2017-03-064790-009-1230ND
2017-03-064790-016-0900ND
2017-03-084790-015-1100ND
2017-03-084790-017-0930ND
2017-05-114790-011-1245ND
2017-05-114790-012-1330ND
2017-05-244790-801-10450.780 ppb
2017-05-244790-802-10251.20 ppb
2017-05-244790-803-1110ND
2017-05-244790-804-09151.70 ppb
2018-02-144790-018-0830ND
2018-02-144790-021-0930ND
2018-02-214790-801-09450.660 ppb
2018-02-214790-802-10101.10 ppb
2018-02-214790-803-0920ND
2018-02-214790-804-10401.10 ppb
2018-05-104790-026-1320ND
2018-05-174790-801-11500.630 ppb
2018-05-174790-802-12450.550 ppb
2018-05-174790-803-1040ND
2018-05-174790-804-09051.20 ppb
2018-05-314790-003-1000ND
2018-08-164790-801-13001.50 ppb
2018-08-164790-802-1145ND
2018-08-164790-803-1220ND
2018-08-164790-804-10501.30 ppb
2018-12-104790-801-11301.20 ppb
2018-12-104790-802-1040ND
2018-12-104790-803-1110ND
2018-12-104790-804-09401.30 ppb
2019-01-304790-027-1230ND
2019-01-304790-028-1130ND
2019-02-074790-010-1000ND
2019-02-074790-027-0900ND
2019-02-114790-801-12301.30 ppb
2019-02-114790-802-1130ND
2019-02-114790-803-1200ND
2019-02-114790-804-10001.50 ppb
2019-05-154790-801-13001.70 ppb
2019-05-154790-802-1150ND
2019-05-154790-803-12202.30 ppb
2019-05-154790-804-09501.60 ppb
2019-08-194790-801-12351.80 ppb
2019-08-194790-802-1115ND
2019-08-194790-803-1200ND
2019-08-194790-804-09401.60 ppb
2019-11-254790-801-1251ND
2019-11-254790-802-1145ND
2019-11-254790-803-1220ND
2019-11-254790-804-09401.60 ppb