Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Dibromochloromethane

St. Louis City

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.

 

77

Samples

0

Samples exceeding legal limit (MCL)

27

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.592 ppb2614ND - 1.64 ppb
20130.0443 ppb141ND - 0.620 ppb
2014ND140ND
20150.371 ppb148ND - 0.890 ppb
20160.436 ppb94ND - 1.23 ppb
2017N/A00N/A

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
2012-03-06AB685290.580 ppb
2012-03-06AB685401.56 ppb
2012-03-06AB685391.24 ppb
2012-03-06AB685380.550 ppb
2012-03-06AB685370.970 ppb
2012-03-06AB685361.43 ppb
2012-03-06AB685351.43 ppb
2012-03-06AB685341.42 ppb
2012-03-06AB685331.55 ppb
2012-03-06AB685320.610 ppb
2012-03-06AB685310.520 ppb
2012-03-06AB685301.64 ppb
2012-06-11AB76349ND
2012-06-11AB76350ND
2012-06-11AB76351ND
2012-06-11AB76352ND
2012-06-11AB76353ND
2012-06-11AB76348ND
2012-06-11AB76347ND
2012-06-11AB76346ND
2012-06-11AB76345ND
2012-06-11AB76344ND
2012-06-11AB76343ND
2012-06-11AB76342ND
2012-06-28HBCB062812M5240.900 ppb
2012-06-28CRCW062812M5241.000 ppb
2013-06-11AC02448ND
2013-06-11AC02447ND
2013-06-11AC02446ND
2013-06-11AC02445ND
2013-06-11AC02444ND
2013-06-11AC02443ND
2013-06-11AC02442ND
2013-06-11AC02441ND
2013-06-11AC02440ND
2013-06-11AC02439ND
2013-06-11AC02438ND
2013-06-11AC02437ND
2013-10-22HBCB102213M524ND
2013-10-22CRCW102213M5240.620 ppb
2014-05-28AC26130ND
2014-05-28AC26129ND
2014-05-28AC26128ND
2014-05-28AC26127ND
2014-05-28AC26126ND
2014-05-28AC26125ND
2014-05-28AC26124ND
2014-05-28AC26123ND
2014-05-28AC26114ND
2014-05-28AC26115ND
2014-05-28AC26119ND
2014-05-28AC26120ND
2014-05-28AC26121ND
2014-05-28AC26122ND
2015-03-17AC446480.560 ppb
2015-03-17AC44652ND
2015-03-17AC446530.890 ppb
2015-03-17AC446540.830 ppb
2015-03-17AC446550.680 ppb
2015-03-17AC446560.610 ppb
2015-03-17AC44658ND
2015-03-17AC44657ND
2015-03-17AC446510.560 ppb
2015-03-17AC44650ND
2015-03-17AC44649ND
2015-03-17AC446590.540 ppb
2015-06-01AC47390ND
2015-06-01AC473910.520 ppb
2016-03-08AC688371.23 ppb
2016-03-08AC688390.900 ppb
2016-03-08AC688400.850 ppb
2016-03-08AC688410.940 ppb
2016-03-08AC68838ND
2016-03-08AC68842ND
2016-06-06AC75866ND
2016-06-06AC75867ND
2016-06-06AC77510ND