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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Deer Park

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

 

106

Samples

0

Samples exceeding legal limit (MCL)

61

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.12 ppb16161.20 ppb - 3.00 ppb
20150.911 ppb1812ND - 1.80 ppb
20160.321 ppb195ND - 1.50 ppb
20170.795 ppb1910ND - 2.90 ppb
20181.17 ppb179ND - 3.80 ppb
20190.953 ppb179ND - 2.70 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
2014-02-10AC418962.50 ppb
2014-02-10AC419002.60 ppb
2014-02-10AC418932.30 ppb
2014-02-10AC418942.40 ppb
2014-05-01AC526802.50 ppb
2014-05-01AC526582.90 ppb
2014-05-01AC526842.90 ppb
2014-05-01AC526573.00 ppb
2014-09-29AC684651.20 ppb
2014-09-29AC684491.20 ppb
2014-09-29AC684691.70 ppb
2014-09-29AC684471.20 ppb
2014-12-15AC750721.90 ppb
2014-12-15AC750672.20 ppb
2014-12-15AC750981.70 ppb
2014-12-15AC750581.70 ppb
2015-02-12AC804451.20 ppb
2015-02-12AC804431.000 ppb
2015-02-12AC803731.80 ppb
2015-02-12AC803761.60 ppb
2015-02-12AC803771.80 ppb
2015-02-12AC803751.80 ppb
2015-04-07AC874371.20 ppb
2015-04-07AC87430ND
2015-04-07AC87428ND
2015-04-07AC87431ND
2015-08-03AD020551.30 ppb
2015-08-03AD020081.000 ppb
2015-08-03AD020471.40 ppb
2015-08-03AD020481.10 ppb
2015-12-02AD15138ND
2015-12-02AD151411.20 ppb
2015-12-02AD15144ND
2015-12-02AD15129ND
2016-01-27AD20401ND
2016-01-27AD20370ND
2016-01-27AD20367ND
2016-01-27AD20374ND
2016-01-27AD20368ND
2016-04-12AD32778ND
2016-04-12AD32753ND
2016-04-12AD32779ND
2016-04-12AD32771ND
2016-06-17AD41185ND
2016-09-28AD516381.10 ppb
2016-09-28AD516371.50 ppb
2016-09-28AD516331.30 ppb
2016-09-28AD51634ND
2016-10-04AD524791.000 ppb
2016-10-04AD52469ND
2016-10-04AD52458ND
2016-10-04AD524341.20 ppb
2016-10-04AD52471ND
2017-01-19AD65737ND
2017-01-19AD65719ND
2017-01-19AD65727ND
2017-01-19AD65709ND
2017-01-19AD657081.000 ppb
2017-01-19AD657071.000 ppb
2017-01-19AD65706ND
2017-05-15AD841621.30 ppb
2017-05-15AD841671.10 ppb
2017-05-15AD841681.60 ppb
2017-05-15AD841691.10 ppb
2017-08-16AD93235ND
2017-08-16AD93230ND
2017-08-16AD93231ND
2017-08-16AD93234ND
2017-11-16AE051462.90 ppb
2017-11-16AE051472.20 ppb
2017-12-12AE075271.50 ppb
2017-12-12AE075261.40 ppb
2018-03-06AE16951ND
2018-03-06AE16952ND
2018-03-06AE16953ND
2018-03-06AE16954ND
2018-06-05AE286611.40 ppb
2018-06-05AE286601.30 ppb
2018-06-05AE286641.40 ppb
2018-06-05AE286651.50 ppb
2018-09-10AE393332.30 ppb
2018-09-10AE393373.80 ppb
2018-09-10AE393342.50 ppb
2018-09-10AE393363.10 ppb
2018-09-10AE393542.60 ppb
2018-12-06AE48194ND
2018-12-06AE48195ND
2018-12-06AE48196ND
2018-12-06AE48197ND
2019-01-16AE50186ND
2019-01-16AE50105ND
2019-01-16AE50106ND
2019-01-16AE50108ND
2019-01-16AE50107ND
2019-04-04AE612011.40 ppb
2019-04-04AE611891.30 ppb
2019-04-04AE61188ND
2019-04-04AE61202ND
2019-08-08AE777342.20 ppb
2019-08-08AE776912.30 ppb
2019-08-08AE776901.000 ppb
2019-08-08AE777122.70 ppb
2019-10-10AE862801.90 ppb
2019-10-10AE862791.50 ppb
2019-10-10AE86278ND
2019-10-10AE862771.90 ppb