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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

SJWTX Triple Peak Plant

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

 

144

Samples

0

Samples exceeding legal limit (MCL)

128

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201412.2 ppb22220.600 ppb - 27.9 ppb
201510.3 ppb2221ND - 23.6 ppb
20164.89 ppb2321ND - 17.2 ppb
20175.46 ppb2821ND - 16.1 ppb
20186.50 ppb2521ND - 16.8 ppb
201910.3 ppb2422ND - 23.6 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
2014-02-18AC4333213.2 ppb
2014-02-18AC433272.20 ppb
2014-02-18AC4330918.1 ppb
2014-02-18AC4331916.8 ppb
2014-03-31AC486941.70 ppb
2014-04-17AC510980.600 ppb
2014-04-17AC5103416.7 ppb
2014-04-17AC510552.10 ppb
2014-04-17AC5105616.0 ppb
2014-04-17AC5105720.8 ppb
2014-06-24AC578120.900 ppb
2014-06-24AC578040.900 ppb
2014-06-24AC578080.900 ppb
2014-07-24AC6088717.0 ppb
2014-07-24AC6093922.1 ppb
2014-07-24AC6093624.3 ppb
2014-07-24AC6095221.5 ppb
2014-07-24AC6093727.9 ppb
2014-11-14AC721596.50 ppb
2014-11-14AC721606.50 ppb
2014-11-14AC7218411.8 ppb
2014-11-14AC7214219.7 ppb
2015-01-16AC7694512.4 ppb
2015-01-16AC769355.00 ppb
2015-01-16AC7693912.7 ppb
2015-01-16AC7692715.8 ppb
2015-06-03AC94415ND
2015-06-03AC944331.000 ppb
2015-06-03AC944131.000 ppb
2015-06-03AC944431.40 ppb
2015-06-03AC943702.30 ppb
2015-06-03AC943713.20 ppb
2015-06-03AC943693.40 ppb
2015-06-03AC943727.20 ppb
2015-08-05AD0266116.0 ppb
2015-08-05AD0257917.1 ppb
2015-08-05AD0257816.5 ppb
2015-08-05AD0258722.3 ppb
2015-08-05AD0257723.6 ppb
2015-11-03AD1234513.5 ppb
2015-11-03AD123842.70 ppb
2015-11-03AD1244419.8 ppb
2015-11-03AD1238720.3 ppb
2015-11-03AD124018.60 ppb
2016-01-26AD201069.00 ppb
2016-01-26AD20098ND
2016-01-26AD200941.90 ppb
2016-01-26AD200402.70 ppb
2016-01-26AD200575.00 ppb
2016-01-26AD2004610.1 ppb
2016-01-26AD2003117.2 ppb
2016-04-22AD339953.70 ppb
2016-04-22AD339403.10 ppb
2016-04-22AD339423.10 ppb
2016-04-22AD339433.10 ppb
2016-04-22AD339414.30 ppb
2016-07-26AD457212.20 ppb
2016-07-26AD457332.50 ppb
2016-07-26AD456683.30 ppb
2016-07-26AD456693.20 ppb
2016-07-26AD456774.90 ppb
2016-07-26AD456706.10 ppb
2016-10-04AD524266.60 ppb
2016-10-04AD524336.70 ppb
2016-10-04AD524306.20 ppb
2016-10-04AD524297.50 ppb
2016-12-01AD59882ND
2017-02-01AD681272.30 ppb
2017-02-01AD68121ND
2017-02-01AD680611.70 ppb
2017-02-01AD680512.00 ppb
2017-02-01AD680596.30 ppb
2017-02-01AD6805012.2 ppb
2017-05-03AD828091.30 ppb
2017-05-03AD82811ND
2017-05-03AD827075.00 ppb
2017-05-03AD8270612.1 ppb
2017-05-03AD8270813.4 ppb
2017-05-31AD86159ND
2017-05-31AD86143ND
2017-05-31AD861452.70 ppb
2017-05-31AD86169ND
2017-06-26AD878053.80 ppb
2017-06-26AD87809ND
2017-06-26AD877778.60 ppb
2017-07-27AD91116ND
2017-07-27AD911245.30 ppb
2017-07-27AD910369.70 ppb
2017-07-27AD910378.60 ppb
2017-07-27AD9104011.5 ppb
2017-07-27AD9105016.1 ppb
2017-11-27AE057272.60 ppb
2017-11-27AE057286.70 ppb
2017-11-27AE057299.10 ppb
2017-11-27AE0573011.9 ppb
2018-02-06AE124685.40 ppb
2018-02-06AE124672.40 ppb
2018-02-06AE124659.80 ppb
2018-02-06AE1247411.1 ppb
2018-04-23AE23479ND
2018-04-23AE234731.40 ppb
2018-04-23AE234297.50 ppb
2018-04-23AE2344110.4 ppb
2018-04-23AE2343011.6 ppb
2018-04-23AE2343515.0 ppb
2018-06-20AE307562.20 ppb
2018-06-20AE307501.40 ppb
2018-06-20AE307541.10 ppb
2018-06-20AE30798ND
2018-07-24AE343437.40 ppb
2018-07-24AE342799.20 ppb
2018-07-24AE342782.70 ppb
2018-07-24AE3428015.2 ppb
2018-07-24AE3427716.8 ppb
2018-08-27AE38540ND
2018-11-06AE453669.00 ppb
2018-11-06AE453681.80 ppb
2018-11-06AE4537110.4 ppb
2018-11-06AE4536710.6 ppb
2018-11-06AE45441ND
2019-02-12AE542111.20 ppb
2019-02-12AE542092.40 ppb
2019-02-12AE5420417.2 ppb
2019-02-12AE542079.10 ppb
2019-02-12AE5420510.00 ppb
2019-02-12AE5420614.0 ppb
2019-05-22AE676894.50 ppb
2019-05-22AE676871.30 ppb
2019-05-22AE67685ND
2019-05-22AE67691ND
2019-05-22AE6765723.6 ppb
2019-05-22AE6765912.1 ppb
2019-05-22AE6765820.3 ppb
2019-05-22AE6765616.1 ppb
2019-06-18AE711282.90 ppb
2019-07-01AE728546.70 ppb
2019-07-01AE7280813.5 ppb
2019-07-01AE7280311.8 ppb
2019-07-01AE7280416.8 ppb
2019-07-01AE7280517.2 ppb
2019-10-15AE867359.50 ppb
2019-10-15AE867367.30 ppb
2019-10-15AE8673315.1 ppb
2019-10-15AE8673415.5 ppb