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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Suburban Water Systems - Whittier

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

 

243

Samples

0

Samples exceeding legal limit (MCL)

157

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.53 ppb4628ND - 5.20 ppb
20151.18 ppb4422ND - 4.90 ppb
20161.65 ppb4331ND - 4.40 ppb
20171.61 ppb3625ND - 3.70 ppb
20181.26 ppb3621ND - 4.60 ppb
20191.62 ppb3830ND - 3.60 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
2014-01-099588-014-1520ND
2014-01-229588-800-13302.60 ppb
2014-01-229588-801-1455ND
2014-01-229588-802-1445ND
2014-01-229588-803-14301.20 ppb
2014-01-229588-804-14201.20 ppb
2014-01-229588-805-13502.00 ppb
2014-01-229588-806-14001.60 ppb
2014-01-229588-807-1505ND
2014-02-069588-014-1020ND
2014-03-109588-014-1501ND
2014-04-079588-014-1304ND
2014-04-219588-800-11204.00 ppb
2014-04-219588-801-12303.20 ppb
2014-04-219588-802-12205.20 ppb
2014-04-219588-803-12053.00 ppb
2014-04-219588-804-11501.60 ppb
2014-04-219588-805-11252.90 ppb
2014-04-219588-806-11352.50 ppb
2014-04-219588-807-12403.20 ppb
2014-05-129588-014-1106ND
2014-05-199588-020-1010ND
2014-05-199588-031-0915ND
2014-05-199588-033-0925ND
2014-05-199588-035-0900ND
2014-06-169588-014-1400ND
2014-07-079588-014-1118ND
2014-07-229588-800-11003.70 ppb
2014-07-229588-801-12102.00 ppb
2014-07-229588-802-12002.40 ppb
2014-07-229588-803-11452.00 ppb
2014-07-229588-804-11301.70 ppb
2014-07-229588-805-11103.00 ppb
2014-07-229588-806-11202.50 ppb
2014-07-229588-807-12201.90 ppb
2014-08-049588-014-1305ND
2014-09-109588-014-1315ND
2014-10-169588-014-1140ND
2014-10-229588-800-11554.10 ppb
2014-10-229588-801-12351.20 ppb
2014-10-229588-802-12202.30 ppb
2014-10-229588-803-1210ND
2014-10-229588-804-11151.90 ppb
2014-10-229588-805-11453.50 ppb
2014-10-229588-806-11302.90 ppb
2014-10-229588-807-12401.20 ppb
2015-01-229588-800-1140ND
2015-01-229588-801-12253.40 ppb
2015-01-229588-802-12104.90 ppb
2015-01-229588-803-11553.10 ppb
2015-01-229588-804-11002.20 ppb
2015-01-229588-805-1130ND
2015-01-229588-806-1120ND
2015-01-229588-807-12303.40 ppb
2015-03-139588-014-1105ND
2015-04-219588-800-1210ND
2015-04-219588-801-13401.20 ppb
2015-04-219588-802-13252.00 ppb
2015-04-219588-803-1315ND
2015-04-219588-804-12451.80 ppb
2015-04-219588-805-1220ND
2015-04-219588-806-1230ND
2015-04-219588-807-13501.30 ppb
2015-04-239588-014-0950ND
2015-05-229588-020-1000ND
2015-05-229588-031-0930ND
2015-05-229588-035-0920ND
2015-06-179588-033-0855ND
2015-07-229588-800-1055ND
2015-07-229588-801-12051.40 ppb
2015-07-229588-802-11551.80 ppb
2015-07-229588-803-11451.90 ppb
2015-07-229588-804-11303.00 ppb
2015-07-229588-805-1105ND
2015-07-229588-806-1115ND
2015-07-229588-807-12201.70 ppb
2015-07-309588-014-1031ND
2015-08-139588-014-1012ND
2015-09-029588-014-1108ND
2015-10-089588-014-1128ND
2015-10-229588-800-11353.60 ppb
2015-10-229588-801-12401.50 ppb
2015-10-229588-802-12302.80 ppb
2015-10-229588-803-12152.00 ppb
2015-10-229588-804-12051.80 ppb
2015-10-229588-805-11402.90 ppb
2015-10-229588-806-11502.40 ppb
2015-10-229588-807-12501.60 ppb
2015-11-099588-014-0850ND
2015-12-079588-014-1040ND
2016-01-229588-800-11553.60 ppb
2016-01-229588-801-13151.30 ppb
2016-01-229588-802-13001.60 ppb
2016-01-229588-803-1250ND
2016-01-229588-804-12353.00 ppb
2016-01-229588-805-12104.40 ppb
2016-01-229588-806-12203.80 ppb
2016-01-229588-807-13301.20 ppb
2016-04-219588-800-12054.20 ppb
2016-04-219588-801-14001.50 ppb
2016-04-219588-802-13502.00 ppb
2016-04-219588-803-13401.20 ppb
2016-04-219588-804-13252.20 ppb
2016-04-219588-805-13002.60 ppb
2016-04-219588-806-13102.30 ppb
2016-04-219588-807-14101.20 ppb
2016-04-299588-014-1001ND
2016-05-059588-014-10001.000 ppb
2016-05-249588-020-1005ND
2016-05-249588-031-0945ND
2016-05-249588-033-0935ND
2016-05-249588-035-0910ND
2016-06-169588-014-1128ND
2016-07-079588-014-1200ND
2016-07-229588-800-13352.80 ppb
2016-07-229588-801-13351.80 ppb
2016-07-229588-802-13352.50 ppb
2016-07-229588-803-13351.10 ppb
2016-07-229588-804-13351.60 ppb
2016-07-229588-805-13352.40 ppb
2016-07-229588-806-13352.00 ppb
2016-07-229588-807-13351.70 ppb
2016-09-089588-014-1415ND
2016-10-139588-014-1100ND
2016-10-249588-800-11503.60 ppb
2016-10-249588-801-13202.50 ppb
2016-10-249588-802-12452.30 ppb
2016-10-249588-803-1235ND
2016-10-249588-804-12251.70 ppb
2016-10-249588-805-12003.20 ppb
2016-10-249588-806-12102.40 ppb
2016-10-249588-807-13302.10 ppb
2016-11-179588-014-1130ND
2017-01-259588-800-11452.80 ppb
2017-01-259588-801-1315ND
2017-01-259588-802-12551.000 ppb
2017-01-259588-803-1240ND
2017-01-259588-804-12252.10 ppb
2017-01-259588-805-11552.60 ppb
2017-01-259588-806-12052.40 ppb
2017-01-259588-807-1325ND
2017-04-219588-800-11353.40 ppb
2017-04-219588-801-12502.00 ppb
2017-04-219588-802-12352.50 ppb
2017-04-219588-803-1225ND
2017-04-219588-804-12101.50 ppb
2017-04-219588-805-11453.50 ppb
2017-04-219588-806-11552.30 ppb
2017-04-219588-807-13002.30 ppb
2017-05-059588-020-0925ND
2017-05-059588-031-0905ND
2017-05-059588-033-0915ND
2017-05-059588-035-0850ND
2017-07-249588-800-1130ND
2017-07-249588-801-12551.90 ppb
2017-07-249588-802-12352.50 ppb
2017-07-249588-803-12251.20 ppb
2017-07-249588-804-12101.50 ppb
2017-07-249588-805-1140ND
2017-07-249588-806-1150ND
2017-07-249588-807-13051.80 ppb
2017-10-239588-800-11152.80 ppb
2017-10-239588-801-12451.70 ppb
2017-10-239588-802-12303.50 ppb
2017-10-239588-803-12151.10 ppb
2017-10-239588-804-12052.30 ppb
2017-10-239588-805-11453.70 ppb
2017-10-239588-806-11503.20 ppb
2017-10-239588-807-12552.20 ppb
2018-01-229588-800-12002.80 ppb
2018-01-229588-801-13152.70 ppb
2018-01-229588-802-12552.90 ppb
2018-01-229588-803-12451.20 ppb
2018-01-229588-804-12302.00 ppb
2018-01-229588-805-12104.60 ppb
2018-01-229588-806-12153.30 ppb
2018-01-229588-807-13103.10 ppb
2018-04-239588-800-13052.60 ppb
2018-04-239588-801-14001.70 ppb
2018-04-239588-802-13452.00 ppb
2018-04-239588-803-1335ND
2018-04-239588-804-12001.80 ppb
2018-04-239588-805-13102.40 ppb
2018-04-239588-806-13202.00 ppb
2018-04-239588-807-14101.70 ppb
2018-05-159588-020-0935ND
2018-05-159588-031-0925ND
2018-05-159588-033-0950ND
2018-05-159588-035-0915ND
2018-07-239588-800-1245ND
2018-07-239588-801-13451.40 ppb
2018-07-239588-802-13301.80 ppb
2018-07-239588-803-13201.50 ppb
2018-07-239588-804-12301.30 ppb
2018-07-239588-805-1255ND
2018-07-239588-806-1305ND
2018-07-239588-807-13551.30 ppb
2018-10-229588-800-1155ND
2018-10-229588-801-1300ND
2018-10-229588-802-1245ND
2018-10-229588-803-1225ND
2018-10-229588-804-11351.40 ppb
2018-10-229588-805-1200ND
2018-10-229588-806-1210ND
2018-10-229588-807-1310ND
2019-01-229588-800-11453.60 ppb
2019-01-229588-801-12453.10 ppb
2019-01-229588-802-12303.30 ppb
2019-01-229588-803-12202.70 ppb
2019-01-229588-804-11252.20 ppb
2019-01-229588-805-11553.60 ppb
2019-01-229588-806-12053.10 ppb
2019-01-229588-807-13002.50 ppb
2019-04-229588-800-11552.90 ppb
2019-04-229588-801-12501.60 ppb
2019-04-229588-802-12401.90 ppb
2019-04-229588-803-12301.70 ppb
2019-04-229588-804-11351.40 ppb
2019-04-229588-805-12052.60 ppb
2019-04-229588-806-12102.40 ppb
2019-04-229588-807-13001.60 ppb
2019-05-289588-020-0910ND
2019-05-289588-031-0915ND
2019-05-289588-033-0925ND
2019-05-289588-035-0900ND
2019-07-229588-800-11352.20 ppb
2019-07-229588-801-12251.40 ppb
2019-07-229588-802-12151.80 ppb
2019-07-229588-803-1205ND
2019-07-229588-804-11051.10 ppb
2019-07-229588-805-11401.90 ppb
2019-07-229588-806-11501.60 ppb
2019-07-229588-807-12351.20 ppb
2019-10-229588-800-12302.20 ppb
2019-10-229588-801-13201.30 ppb
2019-10-229588-802-13051.50 ppb
2019-10-229588-803-1255ND
2019-10-229588-804-11551.000 ppb
2019-10-229588-805-12201.60 ppb
2019-10-229588-806-12101.40 ppb
2019-10-229588-807-13301.10 ppb
2019-11-219588-020-0945ND
2019-11-219588-033-0935ND