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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Suez Water Delaware

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

 

168

Samples

0

Samples exceeding legal limit (MCL)

168

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.03 ppb35350.910 ppb - 5.00 ppb
20153.64 ppb32320.610 ppb - 6.70 ppb
20162.88 ppb24240.800 ppb - 7.40 ppb
20173.05 ppb28280.990 ppb - 5.70 ppb
20183.56 ppb33331.88 ppb - 5.40 ppb
20194.13 ppb16162.50 ppb - 6.30 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
2014-03-0610749530013.40 ppb
2014-03-0610749530023.10 ppb
2014-03-0610749530033.20 ppb
2014-03-0610749530043.70 ppb
2014-03-0610749530053.10 ppb
2014-03-0610749530062.90 ppb
2014-03-0610749530072.50 ppb
2014-03-0610749530082.70 ppb
2014-06-112013111001 TTHM4.20 ppb
2014-06-112013111002 TTHM4.80 ppb
2014-06-112013111003 TTHM2.30 ppb
2014-06-112013111004 TTHM4.50 ppb
2014-06-112013111005 TTHM4.30 ppb
2014-06-112013111006 TTHM2.50 ppb
2014-06-112013111007 TTHM1.80 ppb
2014-06-112013111008 TTHM3.20 ppb
2014-09-0920289830014.40 ppb
2014-09-0920289830022.80 ppb
2014-09-0920289830032.70 ppb
2014-09-0920289830045.00 ppb
2014-09-0920289830052.60 ppb
2014-09-0920289830062.10 ppb
2014-09-0920289830072.70 ppb
2014-09-0920289830082.20 ppb
2014-12-18204252007-TTHM1.70 ppb
2014-12-1820462520013.20 ppb
2014-12-182046252002-TTHM3.30 ppb
2014-12-182046252003-TTHM3.50 ppb
2014-12-182046252004-TTHM4.70 ppb
2014-12-182046252005-TTHM3.70 ppb
2014-12-182046252006-TTHM3.00 ppb
2014-12-182046252008-TTHM3.20 ppb
2014-12-22S6039010.960 ppb
2014-12-22S6039020.910 ppb
2014-12-22S6039031.31 ppb
2015-03-112059081001 TTHM4.60 ppb
2015-03-112059081002 TTHM1.20 ppb
2015-03-112059081003 TTHM1.60 ppb
2015-03-112059081004 TTHM5.00 ppb
2015-03-112059081005 TTHM0.610 ppb
2015-03-112059081006 TTHM0.760 ppb
2015-03-112059081007 TTHM1.40 ppb
2015-03-112059081008 TTHM1.000 ppb
2015-06-082075686001 TTHM4.60 ppb
2015-06-082075686002 TTHM4.20 ppb
2015-06-082075686003 TTHM4.20 ppb
2015-06-082075686004 TTHM4.40 ppb
2015-06-082075686005 TTHM4.20 ppb
2015-06-082075686006 TTHM3.60 ppb
2015-06-082075686007 TTHM4.50 ppb
2015-06-082075686008 TTHM2.90 ppb
2015-09-032093960002 TTHM5.50 ppb
2015-09-032093960003 TTHM5.80 ppb
2015-09-032093960004 TTHM6.70 ppb
2015-09-032093960005 TTHM5.60 ppb
2015-09-032093960006 TTHM5.40 ppb
2015-09-032093960007 TTHM5.00 ppb
2015-09-032093960008 TTHM6.10 ppb
2015-12-07L5949833-1 TTHM4.04 ppb
2015-12-07L5949833-2 TTHM3.14 ppb
2015-12-07L5949833-3 TTHM2.27 ppb
2015-12-07L5949833-4 TTHM3.68 ppb
2015-12-07L5949833-6 TTHM3.51 ppb
2015-12-07L5949833-7 TTHM3.67 ppb
2015-12-07L5949833-8 TTHM2.67 ppb
2015-12-07L594983395 TTHM3.75 ppb
2015-12-30S6249690.720 ppb
2016-06-102151332001 TTHM2.40 ppb
2016-06-102151332002 TTHM2.00 ppb
2016-06-102151332003 TTHM2.10 ppb
2016-06-102151332004 TTHM3.10 ppb
2016-06-102151332005 TTHM2.20 ppb
2016-06-102151332006 TTHM2.40 ppb
2016-06-102151332007 TTHM2.20 ppb
2016-06-102151332008 TTHM2.20 ppb
2016-09-082173721001 TTHM4.90 ppb
2016-09-082173721002-TTHM4.70 ppb
2016-09-082173721003-TTHM4.30 ppb
2016-09-082173721004-TTHM7.40 ppb
2016-09-082173721005-TTHM4.80 ppb
2016-09-082173721006-TTHM4.70 ppb
2016-09-082173721007-TTHM4.00 ppb
2016-09-082173721008-TTHM4.90 ppb
2016-12-082194964001 TTHM1.30 ppb
2016-12-082194964002 TTHM1.20 ppb
2016-12-082194964003 TTHM0.800 ppb
2016-12-082194964004 TTHM2.30 ppb
2016-12-082194964005 TTHM0.940 ppb
2016-12-082194964006 TTHM1.40 ppb
2016-12-082194964007 TTHM0.970 ppb
2016-12-082194964008 TTHM2.00 ppb
2017-03-082214632001 TTHM3.30 ppb
2017-03-082214632002 TTHM2.90 ppb
2017-03-082214632003 TTHM2.80 ppb
2017-03-082214632004 TTHM4.20 ppb
2017-03-082214632005 TTHM3.00 ppb
2017-03-082214632006 TTHM3.30 ppb
2017-03-082214632007 TTHM3.40 ppb
2017-03-082214632008 TTHM2.90 ppb
2017-06-092239424001 TTHM3.90 ppb
2017-06-092239424002 TTHM2.50 ppb
2017-06-092239424003 TTHM3.00 ppb
2017-06-092239424004 TTHM5.70 ppb
2017-06-092239424005 TTHM3.20 ppb
2017-06-092239424006 TTHM5.30 ppb
2017-06-092239424007 TTHM2.60 ppb
2017-06-092239424008 TTHM3.40 ppb
2017-09-072260181001 TTHM2.10 ppb
2017-09-072260181002 TTHM2.20 ppb
2017-09-072260181003 TTHM2.40 ppb
2017-09-072260181004 TTHM3.60 ppb
2017-09-072260181005 TTHM2.30 ppb
2017-09-072260181006 TTHM4.20 ppb
2017-09-072260181007 TTHM1.000 ppb
2017-09-072260181008 TTHM0.990 ppb
2017-12-072282095001 TTHM2.10 ppb
2017-12-072282095002 TTHM2.70 ppb
2017-12-072282095003 TTHM3.40 ppb
2017-12-072282095005 TTHM3.10 ppb
2018-03-0823008790013.00 ppb
2018-03-082300879002 TTHM2.60 ppb
2018-03-082300879003 TTHM3.10 ppb
2018-03-082300879004 TTHM2.90 ppb
2018-03-082300879005 TTHM2.60 ppb
2018-03-082300879006 TTHM3.50 ppb
2018-03-082300879007 TTHM3.00 ppb
2018-03-082300879008 TTHM2.60 ppb
2018-06-072319771001 TTHM2.80 ppb
2018-06-072319771002 TTHM2.70 ppb
2018-06-072319771003 TTHM5.00 ppb
2018-06-072319771004 TTHM2.70 ppb
2018-06-072319771005 TTHM3.70 ppb
2018-06-072319771006 TTHM2.60 ppb
2018-06-072319771007 TTHM2.80 ppb
2018-06-072319771008 TTHM2.90 ppb
2018-09-078092132-01 TTHM4.40 ppb
2018-09-078092132-02 TTHM4.20 ppb
2018-09-078092132-03 THM4.80 ppb
2018-09-078092132-04 TTHM3.40 ppb
2018-09-078092132-05 TTHM4.20 ppb
2018-09-078092132-06 TTHM3.80 ppb
2018-09-078092132-07 TTHM4.00 ppb
2018-09-078092132-08 TTHM4.10 ppb
2018-12-078122168-01 TTHM4.20 ppb
2018-12-078122168-02 TTHM4.20 ppb
2018-12-078122168-03 TTHM3.90 ppb
2018-12-078122168-04 TTHM3.90 ppb
2018-12-078122168-05 TTHM4.00 ppb
2018-12-078122168-06 TTHM4.40 ppb
2018-12-078122168-07 TTHM5.40 ppb
2018-12-078122168-08 TTHM4.10 ppb
2018-12-31S8169101.88 ppb
2019-06-079062660-01 TTHM4.10 ppb
2019-06-079062660-02 TTHM5.20 ppb
2019-06-079062660-03 TTHM4.90 ppb
2019-06-079062660-04 TTHM6.00 ppb
2019-06-079062660-05 TTHM6.10 ppb
2019-06-079062660-06 TTHM5.20 ppb
2019-06-079062660-07 TTHM6.30 ppb
2019-06-079062660-08 TTHM5.00 ppb
2019-12-099122405-01 TTHM2.90 ppb
2019-12-099122405-02 TTHM3.30 ppb
2019-12-099122405-03 TTHM2.50 ppb
2019-12-099122405-04 TTHM2.90 ppb
2019-12-099122405-05 TTHM3.10 ppb
2019-12-099122405-06 TTHM2.60 ppb
2019-12-099122405-07 TTHM3.30 ppb
2019-12-099122405-08 TTHM2.70 ppb