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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Bradford City Water Authority

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.866 ppb1610ND - 2.00 ppb
20151.61 ppb16160.550 ppb - 4.00 ppb
20160.900 ppb169ND - 2.50 ppb
20171.06 ppb169ND - 4.00 ppb
20180.938 ppb167ND - 3.00 ppb
20190.945 ppb1613ND - 2.28 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
2014-03-134C14051-02ND
2014-03-134C14051-04ND
2014-03-134C14051-01ND
2014-03-134C14051-03ND
2014-06-174F27075-021.68 ppb
2014-06-174F27075-050.800 ppb
2014-06-174F27075-030.710 ppb
2014-06-174F27075-040.670 ppb
2014-09-18(701) 701 Co2.00 ppb
2014-09-18(704) 704 Co2.00 ppb
2014-09-18(703) 703 Co2.00 ppb
2014-09-18(702) 702 Co2.00 ppb
2014-12-12(703) 703 CoND
2014-12-12(704) 704 Co1.000 ppb
2014-12-12(702) 702 CoND
2014-12-12(701) 701 Co1.000 ppb
2015-03-16125874081.37 ppb
2015-03-16125874091.39 ppb
2015-03-16125874061.11 ppb
2015-03-16125874071.25 ppb
2015-06-16129664770.630 ppb
2015-06-16130916180.550 ppb
2015-06-16129664980.810 ppb
2015-06-16129664870.720 ppb
2015-09-17133450153.00 ppb
2015-09-17133450283.00 ppb
2015-09-17133450403.00 ppb
2015-09-17133450084.00 ppb
2015-12-15137087071.000 ppb
2015-12-15137086981.000 ppb
2015-12-15137087121.000 ppb
2015-12-15137086902.00 ppb
2016-03-1514057891ND
2016-03-1514057883ND
2016-03-1514057879ND
2016-03-1514057902ND
2016-06-14145113371.000 ppb
2016-06-14145113181.000 ppb
2016-06-14145113471.000 ppb
2016-06-14145113251.000 ppb
2016-09-14150199332.40 ppb
2016-09-14150199312.10 ppb
2016-09-14150199342.40 ppb
2016-09-14150199322.50 ppb
2016-12-1315464157ND
2016-12-1315464143ND
2016-12-1315464136ND
2016-12-13154641231.000 ppb
2017-03-1415883806ND
2017-03-1415883810ND
2017-03-1415883795ND
2017-03-1415883821ND
2017-06-16163598691.000 ppb
2017-06-16163598801.000 ppb
2017-06-16163598681.000 ppb
2017-06-1616359887ND
2017-09-12168259342.00 ppb
2017-09-12168259303.00 ppb
2017-09-12168259254.00 ppb
2017-09-12168259373.00 ppb
2017-12-1217251930ND
2017-12-12172519171.000 ppb
2017-12-12172519131.000 ppb
2017-12-1217251934ND
2018-03-14(704) 704 CoND
2018-03-14(703) 703 CoND
2018-03-14(702) 702 CoND
2018-03-14(701) 701 CoND
2018-06-12(701) 701 Co1.000 ppb
2018-06-12(703) 703 CoND
2018-06-12(704) 704 CoND
2018-06-12(702) 702 Co2.00 ppb
2018-09-18(702) 702 Co2.00 ppb
2018-09-18(703) 703 Co3.00 ppb
2018-09-18(704) 704 Co3.00 ppb
2018-09-18(701) 701 Co3.00 ppb
2018-12-18(704) 704 CoND
2018-12-18(702) 702 CoND
2018-12-18(701) 701 CoND
2018-12-18(703) 703 Co1.000 ppb
2019-03-1219C1742-020.939 ppb
2019-03-1219C1742-040.570 ppb
2019-03-1219C1742-010.614 ppb
2019-03-1219C1742-030.545 ppb
2019-06-1219F0212-03ND
2019-06-1219F0212-040.547 ppb
2019-06-1219F0212-01ND
2019-06-1219F0212-02ND
2019-09-1719I0850-032.03 ppb
2019-09-1719I0850-011.99 ppb
2019-09-1719I0850-041.80 ppb
2019-09-1719I0850-022.28 ppb
2019-12-1719L0037-040.605 ppb
2019-12-1719L0037-030.935 ppb
2019-12-1719L0037-020.988 ppb
2019-12-1719L0037-011.28 ppb