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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Wilmington Water Department

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

 

193

Samples

0

Samples exceeding legal limit (MCL)

190

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.60 ppb1211ND - 4.50 ppb
20152.56 ppb3938ND - 4.80 ppb
20162.88 ppb26261.70 ppb - 4.10 ppb
20172.73 ppb40401.10 ppb - 5.40 ppb
20183.16 ppb36361.20 ppb - 5.20 ppb
20193.22 ppb4039ND - 6.60 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
2014-04-011079443001 TTHM3.70 ppb
2014-04-011079443002 TTHM4.50 ppb
2014-04-011079443003 TTHM3.90 ppb
2014-04-011079443004 TTHM2.70 ppb
2014-04-011079443006 TTHMND
2014-04-011079443007 TTHM2.50 ppb
2014-04-011079443008 TTHM1.10 ppb
2014-04-011079443009 TTHM3.00 ppb
2014-04-011079443010 TTHM3.40 ppb
2014-04-011079443011 TTHM3.30 ppb
2014-12-22S6038951.18 ppb
2014-12-22S6039041.97 ppb
2015-01-052047942001 TTHM0.950 ppb
2015-01-052047942002 TTHM2.40 ppb
2015-01-052047942003 TTHM1.40 ppb
2015-01-052047942004 TTHM1.30 ppb
2015-01-052047942005 TTHM1.10 ppb
2015-01-052047942006 TTHM1.40 ppb
2015-01-052047942007 TTHM2.30 ppb
2015-01-052047942008 TTHM2.20 ppb
2015-01-052047942009 TTHM2.00 ppb
2015-04-142065266001 TTHM2.90 ppb
2015-04-142065266002 TTHM2.70 ppb
2015-04-142065266003 TTHM4.40 ppb
2015-04-142065266004 TTHM3.90 ppb
2015-04-142065266005 TTHM3.80 ppb
2015-04-142065266006 TTHM3.40 ppb
2015-04-142065266007 TTHM3.90 ppb
2015-04-142065266008 TTHM3.80 ppb
2015-04-142065266009 TTHM4.80 ppb
2015-04-142065266010 TTHM4.30 ppb
2015-07-082082331001 TTHM3.10 ppb
2015-07-082082331002 TTHM2.50 ppb
2015-07-082082331003 TTHM2.40 ppb
2015-07-082082331004 TTHM2.60 ppb
2015-07-082082331005 TTHM2.00 ppb
2015-07-082082331006 TTHM2.80 ppb
2015-07-082082331007 TTHM3.00 ppb
2015-07-082082331008 TTHM2.60 ppb
2015-07-082082331009 TTHM2.40 ppb
2015-07-082082331010 TTHM3.40 ppb
2015-10-072100950001 TTHMND
2015-10-072100950003 TTHM2.40 ppb
2015-10-072100950004 TTHM1.50 ppb
2015-10-072100950005 TTHM1.60 ppb
2015-10-072100950006 TTHM1.40 ppb
2015-10-072100950007 TTHM4.20 ppb
2015-10-072100950008 TTHM1.90 ppb
2015-10-072100950009 TTHM3.60 ppb
2015-10-072100950010 TTHM2.30 ppb
2015-12-30S6590181.11 ppb
2016-04-042134195001 TTHM2.30 ppb
2016-04-042134195003 TTHM2.80 ppb
2016-04-042134195004 TTHM2.90 ppb
2016-04-042134195005 TTHM3.50 ppb
2016-04-042134195006 TTHM2.40 ppb
2016-04-042134195007 TTHM2.50 ppb
2016-04-042134195008 TTHM2.80 ppb
2016-04-042134195009 TTHM2.30 ppb
2016-04-042134195010 TTHM2.60 ppb
2016-07-2621621070023.00 ppb
2016-07-2621621070033.00 ppb
2016-07-2621621070043.60 ppb
2016-07-2621621070053.10 ppb
2016-07-2621621070063.10 ppb
2016-07-2621621070072.80 ppb
2016-07-2621621070083.00 ppb
2016-07-2621621070093.70 ppb
2016-10-032179446001 TTHM1.70 ppb
2016-10-032179446002 TTHM3.50 ppb
2016-10-032179446003 TTHM2.80 ppb
2016-10-032179446004 TTHM2.90 ppb
2016-10-032179446005 TTHM2.80 ppb
2016-10-032179446006 TTHM2.60 ppb
2016-10-032179446007 TTHM2.60 ppb
2016-10-032179446008 TTHM4.10 ppb
2016-10-032179446009 TTHM2.60 ppb
2017-01-042200080001 TTHM1.70 ppb
2017-01-042200080002 TTHM2.70 ppb
2017-01-042200080003 TTHM2.50 ppb
2017-01-042200080004 TTHM2.50 ppb
2017-01-042200080005 TTHM2.10 ppb
2017-01-042200080006 TTHM3.80 ppb
2017-01-042200080007 TTHM2.40 ppb
2017-01-042200080008 TTHM2.10 ppb
2017-01-042200080009 TTHM2.50 ppb
2017-04-042220361001 TTHM1.90 ppb
2017-04-042220361003 TTHM2.50 ppb
2017-04-042220361004 TTHM2.50 ppb
2017-04-042220361005 TTHM2.40 ppb
2017-04-042220361006 TTHM2.20 ppb
2017-04-042220361007 TTHM2.50 ppb
2017-04-042220361008 TTHM2.40 ppb
2017-04-042220361009 TTHM2.70 ppb
2017-04-042220361010 TTHM2.50 ppb
2017-04-052220361011 TTHM1.10 ppb
2017-07-182247510001 TTHM1.40 ppb
2017-07-182247510004 TTHM3.30 ppb
2017-07-182247510006 TTHM3.10 ppb
2017-07-182247510008 TTHM2.40 ppb
2017-07-182247510010 TTHM2.20 ppb
2017-07-182247510012 TTHM3.40 ppb
2017-07-182247510014 TTHM2.80 ppb
2017-07-182247510016 TTHM3.40 ppb
2017-07-182247510018 TTHM3.20 ppb
2017-07-182247510020 TTHM1.10 ppb
2017-10-03226296008 TTHM3.40 ppb
2017-10-032267296001 TTHM2.20 ppb
2017-10-032267296004 TTHM4.30 ppb
2017-10-032267296006 TTHM3.90 ppb
2017-10-032267296010 TTHM3.70 ppb
2017-10-032267296012 TTHM3.60 ppb
2017-10-032267296014 TTHM3.40 ppb
2017-10-032267296016 TTHM5.40 ppb
2017-10-032267296018 TTHM4.20 ppb
2017-10-032267296020 TTHM2.00 ppb
2017-12-27S7819621.97 ppb
2018-01-032287060001 TTHM1.50 ppb
2018-01-032287060004 TTHM2.10 ppb
2018-01-032287060006 TTHM2.70 ppb
2018-01-032287060008 TTHM2.40 ppb
2018-01-032287060010 TTHM2.20 ppb
2018-01-032287060012 TTHM4.40 ppb
2018-01-032287060014 TTHM2.00 ppb
2018-01-032287060016 TTHM3.00 ppb
2018-01-032287060018 TTHM2.50 ppb
2018-04-032306959001 TTHM3.30 ppb
2018-04-032306959003 TTHM3.10 ppb
2018-04-032306959005 TTHM2.40 ppb
2018-04-032306959007 TTHM3.20 ppb
2018-04-032306959009 TTHM3.10 ppb
2018-04-032306959011 TTHM3.10 ppb
2018-04-032306959013 TTHM3.40 ppb
2018-04-032306959015 TTHM4.90 ppb
2018-04-032306959017 TTHM3.20 ppb
2018-07-022324450001 TTHM3.10 ppb
2018-07-022324450003 TTHM4.60 ppb
2018-07-022324450004 TTHM4.50 ppb
2018-07-022324450005 TTHM4.30 ppb
2018-07-022324450006 TTHM4.00 ppb
2018-07-022324450007 TTHM3.90 ppb
2018-07-022324450008 TTHM4.20 ppb
2018-07-022324450009 TTHM5.20 ppb
2018-07-022324450010 TTHM4.60 ppb
2018-10-022342141001 TTHM1.20 ppb
2018-10-022342141004 TTHM2.80 ppb
2018-10-022342141006 TTHM2.70 ppb
2018-10-022342141008 TTHM2.50 ppb
2018-10-022342141010 TTHM2.40 ppb
2018-10-022342141012 TTHM2.90 ppb
2018-10-022342141014 TTHM2.70 ppb
2018-10-022342141016 TTHM2.90 ppb
2018-10-022342141018 TTHM2.80 ppb
2019-01-033009447001 TTHM1.70 ppb
2019-01-033009447004 TTHM2.50 ppb
2019-01-033009447006 TTHM2.20 ppb
2019-01-033009447008 TTHM2.10 ppb
2019-01-033009447010 TTHM2.00 ppb
2019-01-033009447012 TTHM2.50 ppb
2019-01-033009447014 TTHM2.20 ppb
2019-01-033009447016 TTHM2.80 ppb
2019-01-033009447018 TTHM2.20 ppb
2019-01-033009447020 TTHMND
2019-04-023026194001 TTHM1.90 ppb
2019-04-023026194003 TTHM3.40 ppb
2019-04-023026194004 TTHM2.70 ppb
2019-04-023026194005 TTHM2.90 ppb
2019-04-023026194006 TTHM2.80 ppb
2019-04-023026194007 TTHM3.00 ppb
2019-04-023026194008 TTHM2.70 ppb
2019-04-023026194009 TTHM3.60 ppb
2019-04-023026194010 TTHM3.20 ppb
2019-04-023026194011 TTHM1.60 ppb
2019-07-013043203001 TTHM2.80 ppb
2019-07-013043203004 TTHM3.90 ppb
2019-07-013043203006 THHM3.70 ppb
2019-07-013043203008 TTHM3.90 ppb
2019-07-013043203010 TTHM3.60 ppb
2019-07-013043203012 TTHM3.20 ppb
2019-07-013043203014 TTHM3.20 ppb
2019-07-013043203016 TTHM4.40 ppb
2019-07-013043203018 TTHM3.30 ppb
2019-07-013043203020 TTHM2.00 ppb
2019-10-023061934001 TTHM3.70 ppb
2019-10-023061934004 TTHM5.10 ppb
2019-10-023061934006 TTHM5.10 ppb
2019-10-023061934008 TTHM4.70 ppb
2019-10-023061934010 TTHM4.40 ppb
2019-10-023061934012 TTHM5.00 ppb
2019-10-023061934014 TTHM4.20 ppb
2019-10-023061934016 TTHM6.60 ppb
2019-10-023061934018 TTHM5.60 ppb
2019-10-023061934020 TTHM2.40 ppb