Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Nps-wolverton

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

 

93

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND70ND
2016ND80ND
20170.636 ppb224ND - 8.00 ppb
20180.269 ppb264ND - 2.00 ppb
20191.75 ppb2412ND - 9.00 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
2014-02-205802-901-0810ND
2014-02-205802-900-0800ND
2014-07-085802-901-0750ND
2014-07-085802-900-0735ND
2014-11-195802-901-0915ND
2014-11-195802-900-0900ND
2015-06-175802-900-0815ND
2015-06-175802-901-0830ND
2015-06-235802-001-0715ND
2015-08-265802-900-1145ND
2015-08-265802-901-1130ND
2015-11-185802-900-0940ND
2015-11-185802-901-0950ND
2016-03-025802-900-0930ND
2016-03-025802-901-0945ND
2016-05-235802-900-0630ND
2016-05-235802-901-0645ND
2016-07-275802-900-0920ND
2016-07-275802-901-0930ND
2016-11-165802-900-0945ND
2016-11-165802-901-1000ND
2017-02-155802-900-0945ND
2017-02-155802-901-1000ND
2017-03-085802-901-0805ND
2017-03-085802-900-0826ND
2017-04-255867-900-0930ND
2017-04-255867-901-0940ND
2017-05-105867-900-0751ND
2017-05-105867-901-07308.00 ppb
2017-06-215867-900-0807ND
2017-06-215867-901-07433.00 ppb
2017-07-265867-900-0805ND
2017-07-265867-901-07522.00 ppb
2017-08-305867-900-0809ND
2017-08-305867-901-07511.000 ppb
2017-09-275867-900-0835ND
2017-09-275867-901-0800ND
2017-10-255867-901-0815ND
2017-10-255867-900-0836ND
2017-11-215867-901-0737ND
2017-11-215867-900-0800ND
2017-12-205867-901-0734ND
2017-12-205867-900-0756ND
2018-01-105802-901-0815ND
2018-01-175867-900-0806ND
2018-01-175867-901-0836ND
2018-01-245802-901-0751ND
2018-01-315802-901-0827ND
2018-02-075867-900-0844ND
2018-02-075867-901-0816ND
2018-02-145802-901-0841ND
2018-02-285802-901-0730ND
2018-03-075867-900-0753ND
2018-03-075867-901-0856ND
2018-03-285802-901-0745ND
2018-06-275867-901-0828ND
2018-06-275867-900-0902ND
2018-07-185867-901-1015ND
2018-07-185867-900-1030ND
2018-08-155867-901-0810ND
2018-08-155867-900-0854ND
2018-09-265867-900-0923ND
2018-09-265867-901-08201.000 ppb
2018-10-315867-900-0850ND
2018-10-315867-901-08052.00 ppb
2018-11-145867-900-0858ND
2018-11-145867-901-08062.00 ppb
2018-12-125867-901-08302.00 ppb
2018-12-125867-900-0910ND
2019-01-165867-900-0900ND
2019-01-165867-901-08302.00 ppb
2019-02-135867-901-0830ND
2019-02-135867-900-0845ND
2019-03-205867-901-0756ND
2019-03-205867-900-1025ND
2019-04-245867-900-08302.00 ppb
2019-04-245867-901-08108.00 ppb
2019-05-155867-900-0845ND
2019-05-155867-901-08155.00 ppb
2019-06-125867-900-09153.00 ppb
2019-06-125867-901-0750ND
2019-07-105867-901-08022.00 ppb
2019-07-105867-900-08154.00 ppb
2019-08-285867-901-08004.00 ppb
2019-08-285867-900-0825ND
2019-09-185867-901-07521.000 ppb
2019-09-185867-900-0820ND
2019-10-305867-901-07459.00 ppb
2019-10-305867-900-08251.000 ppb
2019-11-265867-901-07581.000 ppb
2019-11-265867-900-0850ND
2019-12-305867-901-0800ND
2019-12-305867-900-0820ND