Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Bromodichloromethane

Town of Princess Anne

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.250 ppb81ND - 2.00 ppb
2013ND20ND
20140.575 ppb42ND - 1.70 ppb
2015N/A00N/A
201624.3 ppb445.00 ppb - 36.0 ppb
20179.65 ppb107ND - 20.0 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
2012-02-080190002_07_00424ND
2012-02-080190002_08_00424ND
2012-05-170190002_08_00593ND
2012-05-170190002_07_00593ND
2012-07-260190002_07_00312ND
2012-07-260190002_08_00312ND
2012-10-310190002_07_218902.00 ppb
2012-10-310190002_08_21890ND
2013-08-140190002_07_00677ND
2013-08-140190002_08_00677ND
2014-07-280190002_08_00408ND
2014-07-280190002_07_00408ND
2014-09-120190002_07_L52511.70 ppb
2014-09-120190002_08_L52510.600 ppb
2016-08-180190002_101_081836.0 ppb
2016-08-180190002_102_081824.0 ppb
2016-11-300190002_102_11305.00 ppb
2016-11-300190002_101_113032.0 ppb
2017-02-230190002_102_022313.0 ppb
2017-02-230190002_101_022313.0 ppb
2017-04-04L6753780-1ND
2017-04-19L6769607-2ND
2017-04-19L6769607-12.50 ppb
2017-05-300190002_101_053015.0 ppb
2017-05-300190002_102_053019.0 ppb
2017-06-13L6853722-1ND
2017-08-240190002_102_082414.0 ppb
2017-08-240190002_101_082420.0 ppb