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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Middletown 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.

MORE ABOUT THIS CONTAMINANT

 

116

Samples

0

Samples exceeding legal limit (MCL)

116

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.82 ppb26261.80 ppb - 13.9 ppb
20158.28 ppb18182.40 ppb - 14.6 ppb
20169.71 ppb18183.40 ppb - 13.9 ppb
20179.36 ppb18186.00 ppb - 14.0 ppb
20189.15 ppb18182.80 ppb - 13.9 ppb
20199.54 ppb18182.00 ppb - 13.0 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
2014-01-07DBP 2003889966.00 ppb
2014-01-07DBP 2003889975.10 ppb
2014-01-07DBP 2003889989.10 ppb
2014-01-07DBP 2003889997.00 ppb
2014-03-13DBP 2003926656.50 ppb
2014-03-13DBP 2003926666.30 ppb
2014-03-13DBP 2003926677.80 ppb
2014-03-13DBP 2003926686.90 ppb
2014-04-04DBP 2003937026.90 ppb
2014-04-04DBP 2003937036.30 ppb
2014-04-04DBP 2003937048.80 ppb
2014-04-04DBP 2003937056.70 ppb
2014-06-09VOC1 2003974221.80 ppb
2014-06-09VOC1 2003974235.40 ppb
2014-07-03DBP 20039899512.7 ppb
2014-07-03DBP 2003989968.80 ppb
2014-07-03DBP 20039899813.9 ppb
2014-07-03DBP 20039899911.0 ppb
2014-10-02DBP 2004053879.00 ppb
2014-10-02DBP 2004053888.30 ppb
2014-10-02DBP 2004053899.10 ppb
2014-10-02DBP 2004053909.40 ppb
2014-12-11DBP 2004094546.80 ppb
2014-12-11DBP 2004094556.80 ppb
2014-12-11DBP 2004094569.10 ppb
2014-12-11DBP 2004094577.80 ppb
2015-01-08DBP 2004104047.10 ppb
2015-01-08DBP 2004104034.70 ppb
2015-01-08DBP 2004104056.30 ppb
2015-01-08DBP 2004104025.40 ppb
2015-04-02DBP 2004143734.40 ppb
2015-04-02DBP 2004143754.90 ppb
2015-04-02DBP 2004143745.30 ppb
2015-04-02DBP 2004143724.80 ppb
2015-05-28VOC1 2004175135.30 ppb
2015-06-01VOC1 2004176232.40 ppb
2015-07-07DBP 20041966010.2 ppb
2015-07-07DBP 20041965910.6 ppb
2015-07-07DBP 20041966112.0 ppb
2015-07-07DBP 20041966211.9 ppb
2015-10-01DBP 20042593911.7 ppb
2015-10-01DBP 20042594014.6 ppb
2015-10-01DBP 20042594113.7 ppb
2015-10-01DBP 20042593813.7 ppb
2016-01-07DBP 2004315886.30 ppb
2016-01-07DBP 2004315895.70 ppb
2016-01-07DBP 2004315906.10 ppb
2016-01-07DBP 2004315916.20 ppb
2016-04-07DBP 20043684110.1 ppb
2016-04-07DBP 2004368428.20 ppb
2016-04-07DBP 20043684311.3 ppb
2016-04-07DBP 20043684412.0 ppb
2016-06-22VOC1 2004429996.70 ppb
2016-06-29VOC1 2004434243.40 ppb
2016-07-07DBP 20044403313.8 ppb
2016-07-07DBP 20044403411.6 ppb
2016-07-07DBP 20044403513.2 ppb
2016-07-07DBP 20044403613.9 ppb
2016-10-07DBP 20045191610.6 ppb
2016-10-07DBP 20045191710.2 ppb
2016-10-07DBP 20045191813.4 ppb
2016-10-07DBP 20045191912.0 ppb
2017-01-05DBP 2004581906.10 ppb
2017-01-05DBP 2004581916.20 ppb
2017-01-05DBP 2004581928.40 ppb
2017-01-05DBP 2004581937.20 ppb
2017-04-07DBP 2004640886.30 ppb
2017-04-07DBP 2004640896.60 ppb
2017-04-07DBP 2004640907.60 ppb
2017-04-07DBP 2004640918.00 ppb
2017-06-29VOC1 2004707576.80 ppb
2017-07-06DBP 20047128314.0 ppb
2017-07-06DBP 20047128411.6 ppb
2017-07-06DBP 20047128513.7 ppb
2017-07-06DBP 20047128613.2 ppb
2017-09-29VOC1 2004782876.00 ppb
2017-10-05DBP 20047879212.0 ppb
2017-10-05DBP 20047879310.4 ppb
2017-10-05DBP 20047879412.4 ppb
2017-10-05DBP 20047879512.0 ppb
2018-01-05DBP 2004854106.60 ppb
2018-01-05DBP 2004854117.40 ppb
2018-01-05DBP 20048541211.0 ppb
2018-01-05DBP 2004854137.80 ppb
2018-03-28VOC1 2004907704.20 ppb
2018-04-05DBP 2004914466.50 ppb
2018-04-05DBP 2004914476.40 ppb
2018-04-05DBP 2004914486.80 ppb
2018-04-05DBP 2004914496.40 ppb
2018-04-16VOC1 2004921542.80 ppb
2018-07-04DBP 20049863811.2 ppb
2018-07-04DBP 20049863910.9 ppb
2018-07-04DBP 20049864011.9 ppb
2018-07-04DBP 20049864113.2 ppb
2018-10-04DBP 20050804712.0 ppb
2018-10-04DBP 20050804812.0 ppb
2018-10-04DBP 20050804913.9 ppb
2018-10-04DBP 20050805013.7 ppb
2019-01-03DBP 2005175067.40 ppb
2019-01-03DBP 2005175077.60 ppb
2019-01-03DBP 20051750811.7 ppb
2019-01-03DBP 2005175098.40 ppb
2019-04-04DBP 2005271828.50 ppb
2019-04-04DBP 2005271838.40 ppb
2019-04-04DBP 2005271849.10 ppb
2019-04-04DBP 2005271859.50 ppb
2019-05-13VOC1 2005318932.00 ppb
2019-05-21VOC1 2005330837.20 ppb
2019-07-03DBP 20053892213.0 ppb
2019-07-03DBP 20053892310.7 ppb
2019-07-03DBP 20053892413.0 ppb
2019-07-03DBP 20053892512.7 ppb
2019-10-17DBP 2005533339.10 ppb
2019-10-17DBP 20055333511.3 ppb
2019-10-17DBP 20055333710.9 ppb
2019-10-17DBP 20055333911.2 ppb