Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Bromodichloromethane

Juneau

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

85

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.481 ppb107ND - 0.890 ppb
20130.531 ppb119ND - 0.850 ppb
20140.248 ppb167ND - 0.700 ppb
20150.125 ppb163ND - 0.700 ppb
20160.144 ppb163ND - 0.900 ppb
20170.294 ppb167ND - 0.900 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2012-02-07DB*2012021100850.500 ppb
2012-02-07DB*2012021100860.540 ppb
2012-05-29DB*2012053102480.790 ppb
2012-05-29DB*2012053102490.700 ppb
2012-08-20DB*201208240333ND
2012-08-20DB*2012082403340.890 ppb
2012-10-30DT*2012110201470.600 ppb
2012-10-30DT*2012110201460.790 ppb
2012-11-29201212040243ND
2012-11-29201212040242ND
2013-01-28DB*2013020509070.520 ppb
2013-01-28DB*2013020509080.530 ppb
2013-04-09DB*2013041302120.550 ppb
2013-04-09DB*201304130210ND
2013-07-09DB*2013071203120.680 ppb
2013-07-09DB*2013071203110.850 ppb
2013-10-14DB*201310160316ND
2013-10-14DB*2013101603170.560 ppb
2013-10-14DB*2013101603180.820 ppb
2013-10-14DB*2013101603190.650 ppb
2013-10-14VO*2013101603270.680 ppb
2014-01-06DB*201401110039ND
2014-01-06DB*2014011100410.540 ppb
2014-01-06DB*201401110042ND
2014-01-06DB*2014011100430.520 ppb
2014-04-01DB*201404030462ND
2014-04-01DB*201404030464ND
2014-04-01DB*201404030463ND
2014-04-01DB*201404030460ND
2014-07-07T2*3059548ND
2014-07-07T2*30595470.500 ppb
2014-07-07T2*3059545ND
2014-07-07T2*30595460.700 ppb
2014-10-06DT*31203960.600 ppb
2014-10-06DT*3120402ND
2014-10-06DT*31204000.500 ppb
2014-10-06DT*31203980.600 ppb
2015-01-12DT*3172560ND
2015-01-12DT*3172561ND
2015-01-12DT*3172562ND
2015-01-12DT*3172563ND
2015-04-06DT*3219949ND
2015-04-06DT*32199450.600 ppb
2015-04-06DT*3219943ND
2015-04-06DT*3219947ND
2015-07-06DT*3275773ND
2015-07-06DT*32757740.700 ppb
2015-07-06DT*3275775ND
2015-07-06DT*3275776ND
2015-10-05DT*3336176ND
2015-10-05DT*3336175ND
2015-10-05DT*3336174ND
2015-10-05DT*33361730.700 ppb
2016-01-04DT*3382673ND
2016-01-04DT*3382674ND
2016-01-04DT*3382675ND
2016-01-04DT*3382676ND
2016-04-04DT*3426423ND
2016-04-04DT*3426422ND
2016-04-04DT*3426421ND
2016-04-04DT*3426420ND
2016-07-18DT*3499732ND
2016-07-18DT*34997330.700 ppb
2016-07-18DT*3499734ND
2016-07-18DT*3499735ND
2016-10-03DB*3559112ND
2016-10-03DB*35591110.700 ppb
2016-10-03DB*35591100.900 ppb
2016-10-03DB*3559113ND
2017-01-09DT*36190690.700 ppb
2017-01-09DT*36190700.600 ppb
2017-01-09DT*3619071ND
2017-01-09DT*3619072ND
2017-04-03DT*3667842ND
2017-04-03DT*3667845ND
2017-04-03DT*3667844ND
2017-04-03DT*36678430.600 ppb
2017-07-03DT*37268320.700 ppb
2017-07-03DT*37268330.900 ppb
2017-07-03DT*3726834ND
2017-07-03DT*3726835ND
2017-10-02DT*37918530.600 ppb
2017-10-02DT*37918540.600 ppb
2017-10-02DT*3791855ND
2017-10-02DT*3791856ND