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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Middletown Water Department

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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
20141.48 ppb26260.600 ppb - 3.00 ppb
20151.38 ppb18180.600 ppb - 2.50 ppb
20161.86 ppb18180.700 ppb - 3.20 ppb
20171.70 ppb18181.000 ppb - 2.40 ppb
20181.54 ppb18180.600 ppb - 2.90 ppb
20191.55 ppb18180.700 ppb - 2.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 2003889961.000 ppb
2014-01-07DBP 2003889971.000 ppb
2014-01-07DBP 2003889981.60 ppb
2014-01-07DBP 2003889991.10 ppb
2014-03-13DBP 2003926651.20 ppb
2014-03-13DBP 2003926661.20 ppb
2014-03-13DBP 2003926671.40 ppb
2014-03-13DBP 2003926681.30 ppb
2014-04-04DBP 2003937021.40 ppb
2014-04-04DBP 2003937031.50 ppb
2014-04-04DBP 2003937041.40 ppb
2014-04-04DBP 2003937051.30 ppb
2014-06-09VOC1 2003974220.600 ppb
2014-06-09VOC1 2003974230.700 ppb
2014-07-03DBP 2003989951.80 ppb
2014-07-03DBP 2003989961.60 ppb
2014-07-03DBP 2003989982.20 ppb
2014-07-03DBP 2003989992.10 ppb
2014-10-02DBP 2004053871.90 ppb
2014-10-02DBP 2004053881.80 ppb
2014-10-02DBP 2004053893.00 ppb
2014-10-02DBP 2004053901.90 ppb
2014-12-11DBP 2004094541.10 ppb
2014-12-11DBP 2004094551.20 ppb
2014-12-11DBP 2004094561.70 ppb
2014-12-11DBP 2004094571.40 ppb
2015-01-08DBP 2004104030.800 ppb
2015-01-08DBP 2004104041.000 ppb
2015-01-08DBP 2004104020.900 ppb
2015-01-08DBP 2004104050.900 ppb
2015-04-02DBP 2004143720.900 ppb
2015-04-02DBP 2004143740.700 ppb
2015-04-02DBP 2004143730.700 ppb
2015-04-02DBP 2004143751.10 ppb
2015-05-28VOC1 2004175131.10 ppb
2015-06-01VOC1 2004176230.600 ppb
2015-07-07DBP 2004196621.90 ppb
2015-07-07DBP 2004196601.60 ppb
2015-07-07DBP 2004196611.90 ppb
2015-07-07DBP 2004196591.70 ppb
2015-10-01DBP 2004259412.30 ppb
2015-10-01DBP 2004259392.00 ppb
2015-10-01DBP 2004259382.30 ppb
2015-10-01DBP 2004259402.50 ppb
2016-01-07DBP 2004315881.10 ppb
2016-01-07DBP 2004315891.40 ppb
2016-01-07DBP 2004315901.10 ppb
2016-01-07DBP 2004315911.000 ppb
2016-04-07DBP 2004368411.70 ppb
2016-04-07DBP 2004368421.50 ppb
2016-04-07DBP 2004368431.80 ppb
2016-04-07DBP 2004368441.90 ppb
2016-06-22VOC1 2004429991.20 ppb
2016-06-29VOC1 2004434240.700 ppb
2016-07-07DBP 2004440332.40 ppb
2016-07-07DBP 2004440341.90 ppb
2016-07-07DBP 2004440352.20 ppb
2016-07-07DBP 2004440362.50 ppb
2016-10-07DBP 2004519162.70 ppb
2016-10-07DBP 2004519172.30 ppb
2016-10-07DBP 2004519183.20 ppb
2016-10-07DBP 2004519192.80 ppb
2017-01-05DBP 2004581901.90 ppb
2017-01-05DBP 2004581911.90 ppb
2017-01-05DBP 2004581922.20 ppb
2017-01-05DBP 2004581932.10 ppb
2017-04-07DBP 2004640881.10 ppb
2017-04-07DBP 2004640891.000 ppb
2017-04-07DBP 2004640901.10 ppb
2017-04-07DBP 2004640911.30 ppb
2017-06-29VOC1 2004707571.10 ppb
2017-07-06DBP 2004712831.80 ppb
2017-07-06DBP 2004712841.50 ppb
2017-07-06DBP 2004712851.80 ppb
2017-07-06DBP 2004712861.80 ppb
2017-09-29VOC1 2004782871.30 ppb
2017-10-05DBP 2004787922.20 ppb
2017-10-05DBP 2004787931.90 ppb
2017-10-05DBP 2004787942.40 ppb
2017-10-05DBP 2004787952.20 ppb
2018-01-05DBP 2004854101.20 ppb
2018-01-05DBP 2004854111.20 ppb
2018-01-05DBP 2004854121.70 ppb
2018-01-05DBP 2004854131.30 ppb
2018-03-28VOC1 2004907700.600 ppb
2018-04-05DBP 2004914460.900 ppb
2018-04-05DBP 2004914471.000 ppb
2018-04-05DBP 2004914481.10 ppb
2018-04-05DBP 2004914490.900 ppb
2018-04-16VOC1 2004921540.700 ppb
2018-07-04DBP 2004986381.70 ppb
2018-07-04DBP 2004986391.70 ppb
2018-07-04DBP 2004986401.90 ppb
2018-07-04DBP 2004986412.00 ppb
2018-10-04DBP 2005080472.10 ppb
2018-10-04DBP 2005080482.20 ppb
2018-10-04DBP 2005080492.90 ppb
2018-10-04DBP 2005080502.70 ppb
2019-01-03DBP 2005175061.10 ppb
2019-01-03DBP 2005175071.20 ppb
2019-01-03DBP 2005175081.70 ppb
2019-01-03DBP 2005175091.20 ppb
2019-04-04DBP 2005271821.10 ppb
2019-04-04DBP 2005271831.10 ppb
2019-04-04DBP 2005271841.30 ppb
2019-04-04DBP 2005271851.30 ppb
2019-05-13VOC1 2005318930.700 ppb
2019-05-21VOC1 2005330831.10 ppb
2019-07-03DBP 2005389222.20 ppb
2019-07-03DBP 2005389231.80 ppb
2019-07-03DBP 2005389242.20 ppb
2019-07-03DBP 2005389252.20 ppb
2019-10-17DBP 2005533331.60 ppb
2019-10-17DBP 2005533352.10 ppb
2019-10-17DBP 2005533372.00 ppb
2019-10-17DBP 2005533392.00 ppb