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Bromodichloromethane

East Cherry Creek Valley Water and Sanitation District

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20102.11 ppb122ND - 13.8 ppb
2011N/A00N/A
20120.743 ppb144ND - 3.80 ppb
20130.400 ppb21ND - 0.800 ppb
2014N/A00N/A
20158.88 ppb2423ND - 20.4 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 Result
2010-07-21ND
2010-07-21ND
2010-07-21ND
2010-07-2213.8 ppb
2010-07-22ND
2010-07-22ND
2010-07-22ND
2010-07-22ND
2010-07-27ND
2010-07-2711.5 ppb
2010-07-27ND
2010-07-27ND
2012-04-12ND
2012-04-12ND
2012-04-133.10 ppb
2012-04-19ND
2012-04-23ND
2012-04-26ND
2012-04-26ND
2012-05-04ND
2012-05-10ND
2012-05-17ND
2012-05-17ND
2012-05-253.80 ppb
2012-07-130.600 ppb
2012-10-252.90 ppb
2013-06-05ND
2013-07-170.800 ppb
2015-05-077.00 ppb
2015-05-075.00 ppb
2015-05-074.90 ppb
2015-05-076.30 ppb
2015-05-076.90 ppb
2015-05-076.40 ppb
2015-05-076.70 ppb
2015-05-075.80 ppb
2015-08-127.00 ppb
2015-08-126.30 ppb
2015-08-125.30 ppb
2015-08-126.40 ppb
2015-08-126.00 ppb
2015-08-127.90 ppb
2015-08-12ND
2015-08-126.90 ppb
2015-11-2320.4 ppb
2015-11-2315.3 ppb
2015-11-2315.6 ppb
2015-11-2319.1 ppb
2015-11-2316.7 ppb
2015-11-230.500 ppb
2015-11-2316.6 ppb
2015-11-2314.0 ppb