Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromodichloromethane

City of Wasco

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.

MORE ABOUT THIS CONTAMINANT

 

94

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.282 ppb226ND - 1.70 ppb
20150.565 ppb168ND - 1.50 ppb
20160.504 ppb168ND - 1.70 ppb
20170.268 ppb226ND - 1.80 ppb
20180.482 ppb166ND - 2.50 ppb
2019ND20ND

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
2014-01-135806-903-1155ND
2014-01-135806-900-1142ND
2014-01-135806-902-1122ND
2014-01-135806-901-1210ND
2014-04-155806-901-07450.550 ppb
2014-04-155806-903-0805ND
2014-04-155806-900-08201.70 ppb
2014-04-155806-902-0838ND
2014-05-125806-017-1128ND
2014-05-125806-005-1115ND
2014-05-125806-003-1100ND
2014-05-155806-009-1048ND
2014-05-155806-006-1120ND
2014-05-195806-008-1035ND
2014-07-155806-901-09021.10 ppb
2014-07-155806-902-0848ND
2014-07-155806-900-09300.570 ppb
2014-07-155806-903-0915ND
2014-10-085806-900-11401.40 ppb
2014-10-085806-903-1125ND
2014-10-085806-901-11070.880 ppb
2014-10-085806-902-1052ND
2015-01-205806-903-0846ND
2015-01-205806-901-08311.30 ppb
2015-01-205806-902-0816ND
2015-01-205806-900-08580.750 ppb
2015-04-145806-902-0841ND
2015-04-145806-900-10060.990 ppb
2015-04-145806-903-0950ND
2015-04-145806-901-09301.10 ppb
2015-07-145806-902-0743ND
2015-07-145806-900-08291.40 ppb
2015-07-145806-903-0816ND
2015-07-145806-901-07591.50 ppb
2015-10-225806-902-0733ND
2015-10-225806-903-0812ND
2015-10-225806-900-08261.50 ppb
2015-10-225806-901-07530.500 ppb
2016-01-215806-902-0807ND
2016-01-215806-903-0837ND
2016-01-215806-900-08490.750 ppb
2016-01-215806-901-0822ND
2016-04-195806-902-07430.550 ppb
2016-04-195806-900-08381.60 ppb
2016-04-195806-901-08110.830 ppb
2016-04-195806-903-0825ND
2016-07-195806-901-08150.590 ppb
2016-07-195806-902-0800ND
2016-07-195806-900-08471.40 ppb
2016-07-195806-903-0831ND
2016-10-185806-901-08080.650 ppb
2016-10-185806-900-08411.70 ppb
2016-10-185806-903-0823ND
2016-10-185806-902-0752ND
2017-01-185806-903-1025ND
2017-01-185806-901-0959ND
2017-01-185806-900-10411.000 ppb
2017-01-185806-902-0941ND
2017-04-195806-902-0850ND
2017-04-195806-903-0923ND
2017-04-195806-901-09050.620 ppb
2017-04-195806-900-09381.80 ppb
2017-05-115806-006-0738ND
2017-05-115806-008-0758ND
2017-05-115806-003-0706ND
2017-05-115806-017-0811ND
2017-05-115806-009-0724ND
2017-05-185806-005-0636ND
2017-07-205806-903-0758ND
2017-07-205806-900-08150.860 ppb
2017-07-205806-902-0714ND
2017-07-205806-901-07300.700 ppb
2017-10-265806-903-1003ND
2017-10-265806-902-0828ND
2017-10-265806-900-10280.910 ppb
2017-10-265806-901-0945ND
2018-01-175806-903-0834ND
2018-01-175806-902-0759ND
2018-01-175806-900-08471.10 ppb
2018-01-175806-901-08180.630 ppb
2018-04-175806-900-07561.30 ppb
2018-04-175806-901-0827ND
2018-04-175806-903-0913ND
2018-04-175806-902-0844ND
2018-07-195806-900-07451.40 ppb
2018-07-195806-901-0711ND
2018-07-195806-903-0730ND
2018-07-195806-902-0653ND
2018-10-185806-900-08452.50 ppb
2018-10-185806-901-08020.780 ppb
2018-10-185806-903-0829ND
2018-10-185806-902-0740ND
2019-10-175806-902-1036ND
2019-10-175806-903-1136ND