Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Camino Real Regional Utility Authority

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)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
20150.480 ppb125ND - 3.10 ppb
20160.881 ppb1615ND - 2.70 ppb
20172.08 ppb1615ND - 8.20 ppb
20180.992 ppb16160.120 ppb - 3.40 ppb
20190.958 ppb1614ND - 4.50 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
2014-03-121403726-004AND
2014-03-121403726-001AND
2014-03-121403726-005AND
2014-03-121403726-003AND
2014-03-121403726-002AND
2014-04-141404658-001AND
2014-04-141404659-001AND
2014-04-141404660-001AND
2014-04-141404657-001AND
2014-07-081407377-001AND
2014-07-081407379-001AND
2014-07-081407380-001AND
2014-07-081407381-001AND
2014-10-201410939-001AND
2014-12-101412551-001AND
2014-12-101412540-001AND
2014-12-101412549-001AND
2015-02-101502468-001AND
2015-02-101502458-001AND
2015-02-101502469-001AND
2015-02-101502467-001AND
2015-07-2920150218030.450 ppb
2015-07-2920150218060.360 ppb
2015-07-2920150218050.350 ppb
2015-07-292015021804ND
2015-10-1320150309123.10 ppb
2015-10-132015030914ND
2015-10-1320150309111.50 ppb
2015-10-132015030913ND
2016-01-2620160024132.00 ppb
2016-01-2620160024150.600 ppb
2016-01-2620160024140.590 ppb
2016-01-262016002412ND
2016-05-0420160126250.650 ppb
2016-05-0420160126260.360 ppb
2016-05-0420160126230.210 ppb
2016-05-0420160126240.160 ppb
2016-07-1320160201602.60 ppb
2016-07-1320160201610.120 ppb
2016-07-1320160201580.360 ppb
2016-07-1320160201590.830 ppb
2016-10-0620160293572.70 ppb
2016-10-0620160293551.30 ppb
2016-10-0620160293561.30 ppb
2016-10-0620160293580.310 ppb
2017-01-0520170004860.320 ppb
2017-01-0520170004884.40 ppb
2017-01-0520170004897.60 ppb
2017-01-0520170004872.40 ppb
2017-04-1220170108898.20 ppb
2017-04-1220170108884.20 ppb
2017-04-1220170108870.970 ppb
2017-04-122017010886ND
2017-07-1220170200310.250 ppb
2017-07-1220170200330.320 ppb
2017-07-1220170200340.320 ppb
2017-07-1220170200320.390 ppb
2017-10-2320170306212.80 ppb
2017-10-2320170306230.610 ppb
2017-10-2320170306220.280 ppb
2017-10-2320170306200.210 ppb
2018-01-2320180022920.700 ppb
2018-01-2320180022910.660 ppb
2018-01-2320180022900.120 ppb
2018-01-2320180022892.50 ppb
2018-04-2520180114761.80 ppb
2018-04-2520180114730.750 ppb
2018-04-2520180114740.130 ppb
2018-04-2520180114750.890 ppb
2018-07-1820180198250.530 ppb
2018-07-1820180198240.260 ppb
2018-07-1820180198231.000 ppb
2018-07-1820180198220.420 ppb
2018-10-2220180300600.210 ppb
2018-10-2220180300611.10 ppb
2018-10-2220180300623.40 ppb
2018-10-2220180300631.40 ppb
2019-01-1620190014690.790 ppb
2019-01-1620190014700.310 ppb
2019-01-1620190014711.000 ppb
2019-01-1620190014720.650 ppb
2019-04-1720190098060.690 ppb
2019-04-1720190098090.620 ppb
2019-04-1720190098080.310 ppb
2019-04-1720190098071.20 ppb
2019-07-0220190182370.660 ppb
2019-07-0220190182390.390 ppb
2019-07-022019018238ND
2019-07-0220190182360.1000 ppb
2019-10-0220190282153.20 ppb
2019-10-0220190282140.900 ppb
2019-10-022019028213ND
2019-10-0220190282124.50 ppb