Menu

EWG's Tap Water Database

Donate

Bromodichloromethane

Bennington Water Department

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.

 

105

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20101.27 ppb17170.340 ppb - 2.20 ppb
20110.894 ppb1816ND - 1.90 ppb
20121.25 ppb17170.600 ppb - 2.30 ppb
20131.16 ppb17170.600 ppb - 1.80 ppb
20140.650 ppb1811ND - 2.20 ppb
20150.950 ppb1815ND - 1.70 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.06 ppb

The 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.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-01-1298858010.340 ppb
2010-02-2399966010.540 ppb
2010-02-2399965011.30 ppb
2010-02-2399967011.000 ppb
2010-02-2399964010.980 ppb
2010-05-11101836011.20 ppb
2010-05-11101/38011.50 ppb
2010-05-11101840010.890 ppb
2010-05-11101834010.940 ppb
2010-08-10104337011.50 ppb
2010-08-10104330011.80 ppb
2010-08-10104338012.20 ppb
2010-08-10104326011.50 ppb
2010-11-091002355-012.10 ppb
2010-11-091002352-011.30 ppb
2010-11-091002353-011.10 ppb
2010-11-091002356-011.40 ppb
2011-02-091101514-011.20 ppb
2011-02-091101512-010.800 ppb
2011-02-091101511-010.900 ppb
2011-02-091101509-010.700 ppb
2011-02-151102057-01ND
2011-02-151102058-01ND
2011-05-1199629.011.10 ppb
2011-05-1199629.021.000 ppb
2011-05-1199629.030.600 ppb
2011-05-1199629.040.600 ppb
2011-08-09102386.011.90 ppb
2011-08-09102384.011.30 ppb
2011-08-09102385.010.700 ppb
2011-08-09102383.011.80 ppb
2011-11-29105776.010.700 ppb
2011-11-29105776.021.000 ppb
2011-11-29105776.030.700 ppb
2011-11-29105776.041.10 ppb
2012-02-141202057-011.20 ppb
2012-02-14107810.011.10 ppb
2012-02-14107810.020.600 ppb
2012-02-14107810.040.700 ppb
2012-02-14107810.031.20 ppb
2012-05-01110026.011.20 ppb
2012-05-01110028.011.000 ppb
2012-05-01110027.010.800 ppb
2012-05-01110029.011.10 ppb
2012-07-24112616.011.20 ppb
2012-07-24112616.021.20 ppb
2012-07-24112616.032.30 ppb
2012-07-24112616.041.60 ppb
2012-11-131213511-012.00 ppb
2012-11-13116186.011.80 ppb
2012-11-13116186.020.900 ppb
2012-11-13116186.031.30 ppb
2013-02-131302062-011.40 ppb
2013-02-131302062-020.600 ppb
2013-02-131302062-031.000 ppb
2013-02-131302062-040.900 ppb
2013-02-131302060-010.600 ppb
2013-05-201305-08422-0011.50 ppb
2013-05-201305-08422-0021.30 ppb
2013-05-201305-08422-0030.600 ppb
2013-05-201305-08422-0041.10 ppb
2013-08-121308-15497-0011.70 ppb
2013-08-121308-15497-0021.80 ppb
2013-08-121308-15497-0030.900 ppb
2013-08-121308-15497-0041.70 ppb
2013-11-111311-22696-0011.30 ppb
2013-11-111311-22696-0030.700 ppb
2013-11-111311-22696-0051.000 ppb
2013-11-111311-22696-0071.70 ppb
2014-02-101402-02505-0011.40 ppb
2014-02-101402-02505-003ND
2014-02-101402-02505-005ND
2014-02-101402-02505-0070.900 ppb
2014-02-101402-02560-001ND
2014-02-101402-02560-002ND
2014-05-191405-09199-001ND
2014-05-191405-09199-003ND
2014-05-191405-09199-0050.700 ppb
2014-05-191405-09199-0070.900 ppb
2014-08-111408-16145-001ND
2014-08-111408-16145-0030.800 ppb
2014-08-111408-16145-0050.900 ppb
2014-08-111408-16145-0072.20 ppb
2014-11-101411-23482-0010.800 ppb
2014-11-101411-23482-0020.600 ppb
2014-11-101411-23482-0031.000 ppb
2014-11-101411-23482-0041.50 ppb
2015-02-091502-02283-0010.800 ppb
2015-02-091502-02283-0030.500 ppb
2015-02-091502-02283-0050.800 ppb
2015-02-091502-02283-0071.10 ppb
2015-02-171502-02721-001ND
2015-05-041505-07997-0011.60 ppb
2015-05-041505-07997-003ND
2015-05-041505-07997-005ND
2015-05-041505-07997-0071.40 ppb
2015-08-261508-18259-0011.70 ppb
2015-08-261508-18259-0030.900 ppb
2015-08-261508-18259-0051.30 ppb
2015-08-261508-18259-0071.70 ppb
2015-11-091511-24278-0011.30 ppb
2015-11-091511-24278-0030.600 ppb
2015-11-091511-24278-0050.900 ppb
2015-11-091511-24278-0071.50 ppb
2015-11-121511-24580-0011.000 ppb