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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Centerville City Water System

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.

 

79

Samples

0

Samples exceeding legal limit (MCL)

45

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.74 ppb95ND - 7.50 ppb
20131.83 ppb43ND - 4.90 ppb
20141.64 ppb176ND - 9.40 ppb
20153.37 ppb148ND - 14.1 ppb
20162.44 ppb149ND - 13.3 ppb
20172.91 ppb2114ND - 12.3 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 Result
2012-01-10ND
2012-01-10ND
2012-07-021.30 ppb
2012-07-02ND
2012-07-020.700 ppb
2012-10-017.50 ppb
2012-10-01ND
2012-10-010.600 ppb
2012-10-015.60 ppb
2013-07-011.90 ppb
2013-07-014.90 ppb
2013-07-01ND
2013-07-010.500 ppb
2014-01-06ND
2014-01-06ND
2014-01-061.000 ppb
2014-01-062.10 ppb
2014-01-06ND
2014-01-06ND
2014-01-06ND
2014-04-073.60 ppb
2014-04-072.30 ppb
2014-07-07ND
2014-07-07ND
2014-07-07ND
2014-07-07ND
2014-07-079.40 ppb
2014-07-079.40 ppb
2014-08-10ND
2014-08-10ND
2015-01-052.90 ppb
2015-01-055.40 ppb
2015-04-060.700 ppb
2015-04-0610.9 ppb
2015-04-10ND
2015-07-060.600 ppb
2015-07-0610.5 ppb
2015-07-21ND
2015-07-21ND
2015-07-22ND
2015-07-22ND
2015-07-22ND
2015-10-052.10 ppb
2015-10-0514.1 ppb
2016-01-113.70 ppb
2016-01-11ND
2016-04-048.10 ppb
2016-04-04ND
2016-06-150.600 ppb
2016-06-151.30 ppb
2016-07-050.500 ppb
2016-07-052.80 ppb
2016-07-05ND
2016-07-05ND
2016-10-032.00 ppb
2016-10-03ND
2016-10-031.80 ppb
2016-10-0313.3 ppb
2017-01-091.10 ppb
2017-01-091.70 ppb
2017-01-092.00 ppb
2017-01-090.900 ppb
2017-01-10ND
2017-01-10ND
2017-01-10ND
2017-02-22ND
2017-04-031.30 ppb
2017-04-03ND
2017-04-0310.1 ppb
2017-04-03ND
2017-04-030.500 ppb
2017-07-061.70 ppb
2017-07-06ND
2017-07-0612.3 ppb
2017-07-061.50 ppb
2017-10-025.60 ppb
2017-10-029.90 ppb
2017-10-026.30 ppb
2017-10-026.20 ppb