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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Liberty Utilities - Bellflower - Norwalk

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

 

214

Samples

0

Samples exceeding legal limit (MCL)

153

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20147.35 ppb3632ND - 12.0 ppb
20155.88 ppb2821ND - 12.0 ppb
20164.51 ppb3730ND - 9.60 ppb
20174.14 ppb3928ND - 16.0 ppb
20181.82 ppb3218ND - 9.60 ppb
20191.68 ppb4224ND - 9.70 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
2014-01-169588-800-120511.0 ppb
2014-01-169588-801-11516.00 ppb
2014-01-169588-802-122411.0 ppb
2014-01-169588-803-13458.80 ppb
2014-01-169588-804-140411.0 ppb
2014-01-169588-805-13289.30 ppb
2014-01-169588-806-13175.40 ppb
2014-01-169588-807-12415.00 ppb
2014-04-179588-016-0715ND
2014-04-179588-025-0730ND
2014-04-179588-026-1325ND
2014-04-179588-031-1300ND
2014-04-179588-800-10411.20 ppb
2014-04-179588-801-10556.60 ppb
2014-04-179588-802-111410.00 ppb
2014-04-179588-803-11309.80 ppb
2014-04-179588-804-114011.0 ppb
2014-04-179588-805-11559.70 ppb
2014-04-179588-806-12055.40 ppb
2014-04-179588-807-122010.00 ppb
2014-07-109588-800-11409.80 ppb
2014-07-109588-801-11509.80 ppb
2014-07-109588-802-12055.60 ppb
2014-07-109588-803-14056.20 ppb
2014-07-109588-804-135011.0 ppb
2014-07-109588-805-13356.80 ppb
2014-07-109588-806-13253.80 ppb
2014-07-109588-807-13002.50 ppb
2014-10-169588-800-104012.0 ppb
2014-10-169588-801-11009.70 ppb
2014-10-169588-802-11209.60 ppb
2014-10-169588-803-11359.20 ppb
2014-10-169588-804-12008.90 ppb
2014-10-169588-805-12159.20 ppb
2014-10-169588-806-12308.40 ppb
2014-10-169588-807-124511.0 ppb
2015-01-229588-800-1125ND
2015-01-229588-801-12019.80 ppb
2015-01-229588-802-12208.40 ppb
2015-01-229588-803-13305.80 ppb
2015-01-229588-804-13559.10 ppb
2015-01-229588-805-13158.80 ppb
2015-01-229588-806-12556.20 ppb
2015-01-229588-807-12409.40 ppb
2015-04-099588-026-1325ND
2015-04-169588-025-0945ND
2015-04-179588-800-08392.20 ppb
2015-04-179588-800-0850ND
2015-04-179588-802-090512.0 ppb
2015-04-179588-803-09256.10 ppb
2015-04-179588-804-094511.0 ppb
2015-04-179588-805-100511.0 ppb
2015-04-179588-806-102512.0 ppb
2015-04-179588-807-105512.0 ppb
2015-05-079588-016-1235ND
2015-05-219588-031-0915ND
2015-07-139588-800-1350ND
2015-07-139588-800-14084.30 ppb
2015-07-139588-802-14222.00 ppb
2015-07-139588-803-14457.30 ppb
2015-07-139588-804-150512.0 ppb
2015-07-139588-805-15225.20 ppb
2015-07-139588-806-15305.10 ppb
2015-07-139588-807-15454.80 ppb
2016-02-049588-800-12358.00 ppb
2016-02-049588-801-12208.00 ppb
2016-02-049588-802-12556.00 ppb
2016-02-049588-803-14154.70 ppb
2016-02-049588-804-14398.00 ppb
2016-02-049588-805-13556.30 ppb
2016-02-049588-806-13406.10 ppb
2016-02-049588-807-13155.30 ppb
2016-04-229588-800-1010ND
2016-04-229588-801-09504.40 ppb
2016-04-229588-802-12501.60 ppb
2016-04-229588-803-14254.50 ppb
2016-04-229588-804-14109.60 ppb
2016-04-229588-805-13452.70 ppb
2016-04-229588-806-13304.80 ppb
2016-04-229588-807-13191.60 ppb
2016-05-129588-025-1125ND
2016-05-129588-031-1220ND
2016-05-199588-026-1435ND
2016-07-289588-800-1140ND
2016-07-289588-801-11252.10 ppb
2016-07-289588-802-11507.60 ppb
2016-07-289588-803-13158.10 ppb
2016-07-289588-804-13009.20 ppb
2016-07-289588-805-12406.80 ppb
2016-07-289588-806-12357.20 ppb
2016-07-289588-807-12202.40 ppb
2016-10-279588-800-13152.00 ppb
2016-10-279588-801-13005.30 ppb
2016-10-279588-802-13297.50 ppb
2016-10-279588-803-14103.90 ppb
2016-10-279588-804-14287.70 ppb
2016-10-279588-805-14507.20 ppb
2016-10-279588-806-15006.40 ppb
2016-10-279588-807-15152.00 ppb
2016-12-089588-016-1130ND
2016-12-289469-031-0930ND
2017-01-139588-800-1230ND
2017-01-139588-801-12472.30 ppb
2017-01-139588-802-12157.20 ppb
2017-01-139588-803-13557.40 ppb
2017-01-139588-804-14156.70 ppb
2017-01-139588-805-13357.70 ppb
2017-01-139588-806-13258.00 ppb
2017-01-139588-807-13087.70 ppb
2017-02-249588-031-0930ND
2017-04-069588-025-1000ND
2017-04-139588-800-1436ND
2017-04-139588-801-10593.30 ppb
2017-04-139588-802-07521.30 ppb
2017-04-139588-803-12503.10 ppb
2017-04-139588-804-13095.20 ppb
2017-04-139588-805-13302.40 ppb
2017-04-139588-806-13466.10 ppb
2017-04-139588-807-14091.30 ppb
2017-04-179588-016-1300ND
2017-04-289588-026-1145ND
2017-05-089588-031-1130ND
2017-07-209588-800-1203ND
2017-07-209588-801-12254.60 ppb
2017-07-209588-802-12404.30 ppb
2017-07-209588-803-13555.00 ppb
2017-07-209588-804-13406.90 ppb
2017-07-209588-805-13204.00 ppb
2017-07-209588-806-13066.10 ppb
2017-07-209588-807-12553.40 ppb
2017-08-039588-031-0840ND
2017-10-129588-800-1250ND
2017-10-129588-801-12255.80 ppb
2017-10-129588-802-13002.10 ppb
2017-10-129588-803-13353.90 ppb
2017-10-129588-804-140015.0 ppb
2017-10-129588-805-14207.50 ppb
2017-10-129588-806-14307.00 ppb
2017-10-129588-807-145516.0 ppb
2017-12-159588-031-1030ND
2018-01-189588-800-1230ND
2018-01-189588-801-12502.30 ppb
2018-01-189588-802-1335ND
2018-01-189588-803-14402.20 ppb
2018-01-189588-804-14207.30 ppb
2018-01-189588-805-14002.00 ppb
2018-01-189588-806-13453.70 ppb
2018-01-189588-807-13101.60 ppb
2018-02-229588-031-0815ND
2018-04-059588-025-0830ND
2018-04-099588-016-0800ND
2018-04-099588-026-0730ND
2018-04-269588-800-1100ND
2018-04-269588-801-11152.50 ppb
2018-04-269588-802-11301.10 ppb
2018-04-269588-803-11452.60 ppb
2018-04-269588-804-12509.60 ppb
2018-04-269588-805-15252.60 ppb
2018-04-269588-806-15104.20 ppb
2018-04-269588-807-14541.50 ppb
2018-05-119588-031-1110ND
2018-08-169588-031-0800ND
2018-09-139588-026-0945ND
2018-10-119588-800-1150ND
2018-10-119588-801-12552.50 ppb
2018-10-119588-802-1235ND
2018-10-119588-803-14151.70 ppb
2018-10-119588-804-14056.00 ppb
2018-10-119588-805-13501.30 ppb
2018-10-119588-806-13353.50 ppb
2018-10-119588-807-1315ND
2018-11-089588-031-1150ND
2019-01-089588-031-1340ND
2019-01-089588-800-1442ND
2019-01-089588-801-08252.40 ppb
2019-01-089588-802-07371.10 ppb
2019-01-089588-803-13352.10 ppb
2019-01-089588-804-13219.70 ppb
2019-01-089588-805-11231.40 ppb
2019-01-089588-806-11053.40 ppb
2019-01-089588-807-09321.10 ppb
2019-03-129588-016-0910ND
2019-04-099588-800-1315ND
2019-04-099588-801-13002.60 ppb
2019-04-099588-802-1330ND
2019-04-099588-803-14301.40 ppb
2019-04-099588-804-15007.10 ppb
2019-04-099588-805-14151.20 ppb
2019-04-099588-806-14002.60 ppb
2019-04-099588-807-13451.20 ppb
2019-04-109588-016-0930ND
2019-04-109588-025-0000ND
2019-04-109588-026-0000ND
2019-04-109588-031-1315ND
2019-07-029588-016-0900ND
2019-07-029588-031-0955ND
2019-07-109588-800-0757ND
2019-07-109588-801-08162.80 ppb
2019-07-109588-802-0740ND
2019-07-109588-803-10152.10 ppb
2019-07-109588-804-09556.30 ppb
2019-07-109588-805-09251.80 ppb
2019-07-109588-806-09054.10 ppb
2019-07-109588-807-0836ND
2019-10-089588-016-1120ND
2019-10-089588-031-1156ND
2019-10-089588-800-1250ND
2019-10-089588-801-13102.90 ppb
2019-10-089588-802-1455ND
2019-10-089588-803-14401.70 ppb
2019-10-089588-804-14255.70 ppb
2019-10-089588-805-13401.20 ppb
2019-10-089588-806-14003.40 ppb
2019-10-089588-807-13251.20 ppb