Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromodichloromethane

Cal/am Water Company - Baldwin Hills

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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

 

163

Samples

0

Samples exceeding legal limit (MCL)

65

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.65 ppb339ND - 10.1 ppb
20150.659 ppb326ND - 7.30 ppb
20161.12 ppb317ND - 9.80 ppb
20171.67 ppb2312ND - 5.70 ppb
20183.50 ppb1816ND - 9.40 ppb
20191.87 ppb2615ND - 10.4 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-01-081225-001-1000ND
2014-02-031225-001-1100ND
2014-02-121225-800-100510.1 ppb
2014-02-121225-801-10157.80 ppb
2014-02-121225-802-0940ND
2014-02-121225-803-0955ND
2014-03-121225-001-1200ND
2014-04-071225-001-1145ND
2014-05-121225-001-1240ND
2014-05-121225-800-12008.90 ppb
2014-05-121225-801-12204.30 ppb
2014-05-121225-802-1040ND
2014-05-121225-803-1020ND
2014-06-021225-001-1200ND
2014-06-231225-001-0930ND
2014-06-231225-003-1000ND
2014-06-231225-006-0900ND
2014-07-219590-001-1100ND
2014-07-219590-003-1030ND
2014-07-259590-001-09544.00 ppb
2014-08-041225-001-1230ND
2014-08-131225-800-10207.40 ppb
2014-08-131225-801-10408.50 ppb
2014-08-131225-802-09551.50 ppb
2014-08-131225-803-10051.80 ppb
2014-09-151225-001-1015ND
2014-10-061225-001-0950ND
2014-11-101225-800-1130ND
2014-11-101225-801-1200ND
2014-11-101225-802-1300ND
2014-11-101225-803-1230ND
2014-11-171225-001-1200ND
2014-12-081225-001-1200ND
2015-01-051225-001-1030ND
2015-02-021225-001-1130ND
2015-02-091225-800-1200ND
2015-02-091225-801-1220ND
2015-02-091225-802-10401.10 ppb
2015-02-091225-803-1020ND
2015-03-091225-001-1130ND
2015-04-081225-001-1045ND
2015-05-041225-001-1020ND
2015-05-131225-800-0935ND
2015-05-131225-801-0950ND
2015-05-131225-802-0900ND
2015-05-131225-803-0915ND
2015-06-031225-001-1245ND
2015-07-131225-001-0930ND
2015-08-101225-800-12407.10 ppb
2015-08-101225-801-13007.30 ppb
2015-08-101225-802-13401.60 ppb
2015-08-101225-803-13202.20 ppb
2015-08-121225-001-1320ND
2015-09-021225-001-1330ND
2015-09-021225-003-1200ND
2015-09-021225-006-1245ND
2015-09-281225-001-1200ND
2015-10-121225-001-1130ND
2015-11-091225-001-0700ND
2015-11-101225-800-08151.80 ppb
2015-11-101225-801-0830ND
2015-11-101225-802-0730ND
2015-11-101225-803-0745ND
2015-11-169590-008-1250ND
2015-12-071225-001-1200ND
2016-01-111225-001-1205ND
2016-02-101225-001-1200ND
2016-02-101225-800-11151.000 ppb
2016-02-101225-801-1100ND
2016-02-101225-802-1145ND
2016-02-101225-803-1130ND
2016-03-141225-001-1200ND
2016-04-061225-001-0955ND
2016-05-021225-001-1200ND
2016-05-101225-800-09307.80 ppb
2016-05-101225-801-09457.80 ppb
2016-05-101225-802-0900ND
2016-05-101225-803-0915ND
2016-06-061225-001-1130ND
2016-06-131225-001-1030ND
2016-06-131225-003-0930ND
2016-06-131225-006-1000ND
2016-07-181225-001-1000ND
2016-08-011225-001-1200ND
2016-08-101225-800-10204.60 ppb
2016-08-101225-801-10009.80 ppb
2016-08-101225-802-09402.10 ppb
2016-08-101225-803-0915ND
2016-09-061225-001-1000ND
2016-10-101225-001-0915ND
2016-11-071225-001-1100ND
2016-11-071225-800-1015ND
2016-11-071225-801-10001.60 ppb
2016-11-071225-802-1045ND
2016-11-071225-803-1030ND
2016-12-121225-001-1040ND
2017-01-091225-001-1120ND
2017-02-071225-001-1000ND
2017-02-071225-800-1045ND
2017-02-071225-801-11151.30 ppb
2017-02-071225-802-10301.10 ppb
2017-02-071225-803-1015ND
2017-03-011225-001-1015ND
2017-04-031225-001-1130ND
2017-05-081225-001-0930ND
2017-05-081225-800-10302.90 ppb
2017-05-081225-801-1045ND
2017-05-081225-802-11151.10 ppb
2017-05-081225-803-1100ND
2017-06-261225-003-1130ND
2017-06-261225-006-1230ND
2017-08-081225-800-13202.60 ppb
2017-08-081225-801-13352.70 ppb
2017-08-081225-802-14204.20 ppb
2017-08-081225-803-14053.00 ppb
2017-11-061225-800-10455.20 ppb
2017-11-061225-801-11004.60 ppb
2017-11-061225-802-11304.10 ppb
2017-11-061225-803-11155.70 ppb
2018-02-131225-800-13304.20 ppb
2018-02-131225-801-13203.80 ppb
2018-02-131225-802-14155.80 ppb
2018-02-131225-803-14006.10 ppb
2018-05-081225-800-11458.50 ppb
2018-05-081225-801-12006.20 ppb
2018-05-081225-802-12551.80 ppb
2018-05-081225-803-12402.10 ppb
2018-06-051225-003-1040ND
2018-06-051225-006-1000ND
2018-08-151225-800-13102.50 ppb
2018-08-151225-801-13002.30 ppb
2018-08-151225-802-13452.70 ppb
2018-08-151225-803-13252.30 ppb
2018-11-131225-800-09352.00 ppb
2018-11-131225-801-09209.40 ppb
2018-11-131225-802-08331.40 ppb
2018-11-131225-803-09021.90 ppb
2019-02-111225-800-14109.30 ppb
2019-02-111225-801-135010.4 ppb
2019-02-111225-802-1250ND
2019-02-111225-803-13303.00 ppb
2019-05-131225-800-13162.10 ppb
2019-05-131225-801-13322.20 ppb
2019-05-131225-802-12132.10 ppb
2019-05-131225-803-12582.30 ppb
2019-06-121225-006-1404ND
2019-08-121225-800-13331.90 ppb
2019-08-121225-801-14182.20 ppb
2019-08-121225-802-12382.50 ppb
2019-08-121225-803-13021.40 ppb
2019-09-269590-001-1030ND
2019-09-269590-001-1045ND
2019-09-269590-001-1100ND
2019-09-269590-001-1115ND
2019-09-269590-001-1130ND
2019-10-019590-008-0942ND
2019-10-019590-008-0957ND
2019-10-019590-008-1012ND
2019-10-019590-008-1027ND
2019-11-121225-800-15212.10 ppb
2019-11-121225-801-15431.90 ppb
2019-11-121225-802-17082.40 ppb
2019-11-121225-803-16512.70 ppb