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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Bay City

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

 

130

Samples

0

Samples exceeding legal limit (MCL)

106

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.64 ppb1716ND - 3.30 ppb
20152.26 ppb2116ND - 14.1 ppb
20161.01 ppb2516ND - 4.20 ppb
20171.71 ppb2114ND - 6.50 ppb
20182.19 ppb21211.000 ppb - 5.60 ppb
20191.58 ppb2523ND - 5.70 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
2014-02-19AC435903.30 ppb
2014-02-19AC435722.70 ppb
2014-02-19AC435752.20 ppb
2014-02-19AC435731.000 ppb
2014-02-19AC435742.20 ppb
2014-04-24AC516962.10 ppb
2014-04-24AC517091.20 ppb
2014-04-24AC516942.00 ppb
2014-04-24AC516951.80 ppb
2014-08-20AC647232.70 ppb
2014-08-20AC647201.20 ppb
2014-08-20AC64722ND
2014-08-20AC647191.10 ppb
2014-10-24AC705631.20 ppb
2014-10-24AC705621.10 ppb
2014-10-24AC706001.10 ppb
2014-10-24AC705591.000 ppb
2015-01-29AC78511ND
2015-01-29AC785211.000 ppb
2015-01-29AC785191.20 ppb
2015-01-29AC78515ND
2015-01-29AC78531ND
2015-01-29AC784702.00 ppb
2015-01-29AC784461.30 ppb
2015-01-29AC784451.40 ppb
2015-01-29AC784481.30 ppb
2015-05-18AC923029.00 ppb
2015-05-18AC922801.40 ppb
2015-05-18AC922991.50 ppb
2015-05-18AC92301ND
2015-08-14AD042917.30 ppb
2015-08-14AD042561.000 ppb
2015-08-14AD042451.20 ppb
2015-08-14AD04316ND
2015-12-02AD1512414.1 ppb
2015-12-02AD151271.40 ppb
2015-12-02AD151371.20 ppb
2015-12-02AD151331.10 ppb
2016-02-25AD25767ND
2016-02-25AD257591.10 ppb
2016-02-25AD257531.30 ppb
2016-02-25AD257631.60 ppb
2016-02-25AD257001.90 ppb
2016-02-25AD25702ND
2016-02-25AD257011.30 ppb
2016-02-25AD257031.10 ppb
2016-03-21AD29571ND
2016-06-02AD392014.20 ppb
2016-06-02AD391252.70 ppb
2016-06-02AD391281.10 ppb
2016-06-02AD391261.50 ppb
2016-06-02AD39127ND
2016-07-21AD45233ND
2016-09-19AD500041.20 ppb
2016-09-19AD499841.30 ppb
2016-09-19AD50008ND
2016-09-19AD499871.10 ppb
2016-09-19AD50155ND
2016-11-16AD582541.50 ppb
2016-11-16AD58257ND
2016-11-16AD582581.20 ppb
2016-11-16AD582551.20 ppb
2016-11-16AD58355ND
2017-01-25AD668521.50 ppb
2017-01-25AD66846ND
2017-01-25AD667811.90 ppb
2017-01-25AD667661.10 ppb
2017-01-25AD66767ND
2017-01-25AD667791.10 ppb
2017-03-06AD734792.40 ppb
2017-03-06AD734611.60 ppb
2017-03-06AD734811.70 ppb
2017-05-23AD852152.00 ppb
2017-05-23AD85212ND
2017-05-23AD852113.40 ppb
2017-05-23AD85214ND
2017-08-08AD923792.20 ppb
2017-08-08AD92375ND
2017-08-08AD923776.50 ppb
2017-08-08AD92378ND
2017-10-23AE015811.30 ppb
2017-10-23AE015832.80 ppb
2017-10-23AE015846.40 ppb
2017-10-23AE01582ND
2018-01-09AE083731.10 ppb
2018-01-09AE084071.000 ppb
2018-01-09AE083751.10 ppb
2018-01-09AE083791.10 ppb
2018-01-09AE083591.80 ppb
2018-01-09AE083262.10 ppb
2018-01-09AE083091.20 ppb
2018-01-09AE083183.00 ppb
2018-01-09AE083281.10 ppb
2018-04-05AE214272.10 ppb
2018-04-05AE214251.20 ppb
2018-04-05AE214204.10 ppb
2018-04-05AE214212.00 ppb
2018-07-18AE337275.60 ppb
2018-07-18AE337551.70 ppb
2018-07-18AE337264.90 ppb
2018-07-18AE337481.20 ppb
2018-10-09AE429192.10 ppb
2018-10-09AE429201.10 ppb
2018-10-09AE429215.40 ppb
2018-10-09AE429221.000 ppb
2019-02-07AE534961.50 ppb
2019-02-07AE534881.30 ppb
2019-02-07AE534981.40 ppb
2019-02-07AE534921.10 ppb
2019-02-07AE53490ND
2019-02-07AE534111.50 ppb
2019-02-07AE534101.40 ppb
2019-02-07AE534131.000 ppb
2019-02-07AE534091.10 ppb
2019-04-29AE639181.30 ppb
2019-04-29AE639131.30 ppb
2019-04-29AE639352.60 ppb
2019-04-29AE639341.50 ppb
2019-04-29AE63951ND
2019-04-29AE639531.10 ppb
2019-08-06AE771853.30 ppb
2019-08-06AE772131.10 ppb
2019-08-06AE771865.70 ppb
2019-08-06AE772151.10 ppb
2019-08-06AE772792.00 ppb
2019-08-06AE772731.40 ppb
2019-10-17AE869011.30 ppb
2019-10-17AE869171.000 ppb
2019-10-17AE868943.50 ppb
2019-10-17AE869001.000 ppb