Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromodichloromethane

Vaughn WC Inc

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

 

113

Samples

0

Samples exceeding legal limit (MCL)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.939 ppb1815ND - 2.10 ppb
20151.03 ppb1614ND - 2.10 ppb
20160.359 ppb228ND - 1.50 ppb
20170.578 ppb187ND - 2.60 ppb
20180.118 ppb172ND - 1.000 ppb
20190.182 ppb224ND - 1.000 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
2014-02-255867-900-14051.30 ppb
2014-02-255867-901-14400.900 ppb
2014-02-255867-902-13450.900 ppb
2014-02-255867-903-14250.700 ppb
2014-05-285867-900-15451.30 ppb
2014-05-285867-901-15150.900 ppb
2014-05-285867-902-16000.900 ppb
2014-05-285867-903-15150.900 ppb
2014-07-315867-050-1400ND
2014-08-275867-046-1040ND
2014-08-275867-900-14101.70 ppb
2014-08-275867-901-11501.20 ppb
2014-08-275867-902-13151.20 ppb
2014-08-275867-903-11091.40 ppb
2014-11-245867-900-15252.10 ppb
2014-11-245867-901-1650ND
2014-11-245867-902-15050.700 ppb
2014-11-245867-903-16100.800 ppb
2015-02-265867-900-13502.10 ppb
2015-02-265867-901-14201.30 ppb
2015-02-265867-902-13100.600 ppb
2015-02-265867-903-14050.700 ppb
2015-05-275867-900-11251.80 ppb
2015-05-275867-901-1211ND
2015-05-275867-902-11070.800 ppb
2015-05-275867-903-11450.900 ppb
2015-08-275867-900-12501.90 ppb
2015-08-275867-901-11501.10 ppb
2015-08-275867-902-13300.800 ppb
2015-08-275867-903-10500.800 ppb
2015-11-195867-900-11201.80 ppb
2015-11-195867-901-12451.20 ppb
2015-11-195867-902-1100ND
2015-11-195867-903-11450.700 ppb
2016-02-195867-900-11451.50 ppb
2016-02-195867-901-12201.000 ppb
2016-02-195867-902-1130ND
2016-02-195867-903-12001.10 ppb
2016-05-245867-903-14150.700 ppb
2016-05-255867-900-11251.000 ppb
2016-05-255867-901-14001.000 ppb
2016-05-255867-902-11500.500 ppb
2016-06-295867-026-1120ND
2016-06-295867-035-1200ND
2016-07-275867-020-1130ND
2016-07-275867-027-1230ND
2016-08-315867-018-1100ND
2016-08-315867-900-1420ND
2016-08-315867-901-1240ND
2016-08-315867-902-1440ND
2016-08-315867-903-1337ND
2016-09-295867-048-1325ND
2016-11-235867-900-10451.10 ppb
2016-11-235867-901-1115ND
2016-11-235867-902-1030ND
2016-11-235867-903-1100ND
2017-02-105867-900-14102.60 ppb
2017-02-105867-901-14551.40 ppb
2017-02-105867-902-1350ND
2017-02-105867-903-14251.40 ppb
2017-05-035867-900-14451.000 ppb
2017-05-035867-901-1410ND
2017-05-035867-902-1455ND
2017-05-035867-903-1435ND
2017-06-225867-046-1035ND
2017-06-225867-050-1000ND
2017-08-175867-900-14001.000 ppb
2017-08-175867-901-1510ND
2017-08-175867-902-1330ND
2017-08-175867-903-1420ND
2017-12-215867-900-12052.00 ppb
2017-12-215867-901-13201.000 ppb
2017-12-215867-902-1150ND
2017-12-215867-903-1230ND
2018-02-125867-900-13401.000 ppb
2018-02-125867-901-13201.000 ppb
2018-02-125867-902-1355ND
2018-02-125867-903-1228ND
2018-05-235867-900-1230ND
2018-05-235867-901-1100ND
2018-05-235867-902-1240ND
2018-05-235867-903-1200ND
2018-07-245867-900-1505ND
2018-08-105867-900-1540ND
2018-08-105867-901-1420ND
2018-08-105867-902-1330ND
2018-08-105867-903-1515ND
2018-11-155867-900-1430ND
2018-11-155867-901-1315ND
2018-11-155867-902-1440ND
2018-11-155867-903-1420ND
2019-02-215867-900-1030ND
2019-02-215867-901-1220ND
2019-02-215867-902-1325ND
2019-02-215867-903-1045ND
2019-03-195867-020-1150ND
2019-03-195867-048-1010ND
2019-04-255867-018-1255ND
2019-04-255867-026-1350ND
2019-05-285867-035-1140ND
2019-05-285867-900-11151.000 ppb
2019-05-285867-901-1255ND
2019-05-285867-902-1130ND
2019-05-285867-903-1305ND
2019-06-185867-027-1450ND
2019-08-215867-900-09501.000 ppb
2019-08-215867-901-11401.000 ppb
2019-08-215867-902-1040ND
2019-08-215867-903-1245ND
2019-11-225867-900-11101.000 ppb
2019-11-225867-901-1240ND
2019-11-225867-902-1125ND
2019-11-225867-903-1300ND