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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Groves

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)

68

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.80 ppb17171.40 ppb - 2.20 ppb
20150.565 ppb175ND - 2.20 ppb
20162.09 ppb21211.000 ppb - 3.10 ppb
20170.335 ppb174ND - 1.80 ppb
20181.21 ppb1713ND - 2.30 ppb
20190.659 ppb178ND - 1.90 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
2014-02-25AC444371.60 ppb
2014-02-25AC444301.60 ppb
2014-02-25AC444311.50 ppb
2014-02-25AC444341.80 ppb
2014-06-02AC556002.20 ppb
2014-06-02AC555982.10 ppb
2014-06-02AC555932.20 ppb
2014-06-02AC555972.20 ppb
2014-07-22AC604951.70 ppb
2014-07-22AC605781.80 ppb
2014-07-22AC605971.50 ppb
2014-07-22AC605951.60 ppb
2014-07-22AC605941.40 ppb
2014-11-10AC716971.90 ppb
2014-11-10AC717021.90 ppb
2014-11-10AC716931.90 ppb
2014-11-10AC716961.70 ppb
2015-02-09AC79681ND
2015-02-09AC79680ND
2015-02-09AC79678ND
2015-02-09AC79654ND
2015-04-21AC88975ND
2015-04-21AC88979ND
2015-04-21AC88980ND
2015-04-21AC88991ND
2015-09-22AD080381.80 ppb
2015-09-22AD080001.90 ppb
2015-09-22AD079981.90 ppb
2015-09-22AD080022.20 ppb
2015-09-22AD080061.80 ppb
2015-12-03AD15382ND
2015-12-03AD15379ND
2015-12-03AD15380ND
2015-12-03AD15399ND
2016-03-02AD266081.20 ppb
2016-03-02AD266031.50 ppb
2016-03-02AD266001.40 ppb
2016-03-02AD266021.50 ppb
2016-06-07AD395631.000 ppb
2016-06-07AD395621.10 ppb
2016-06-07AD395571.90 ppb
2016-06-07AD395541.90 ppb
2016-10-12AD531112.50 ppb
2016-10-12AD531082.70 ppb
2016-10-12AD531122.80 ppb
2016-10-12AD531102.80 ppb
2016-10-22AD543362.10 ppb
2016-10-22AD543203.10 ppb
2016-10-22AD543192.40 ppb
2016-10-22AD543132.40 ppb
2016-10-22AD543012.20 ppb
2016-11-21AD587972.10 ppb
2016-11-21AD588022.50 ppb
2016-11-21AD587962.30 ppb
2016-11-21AD587942.40 ppb
2017-02-13AD70389ND
2017-02-13AD70392ND
2017-02-13AD70384ND
2017-02-13AD70393ND
2017-05-02AD824501.20 ppb
2017-05-02AD824081.80 ppb
2017-05-02AD823801.50 ppb
2017-05-02AD824421.20 ppb
2017-09-11AD95451ND
2017-09-11AD95420ND
2017-09-11AD95423ND
2017-09-11AD95425ND
2017-09-11AD95421ND
2017-11-01AE03422ND
2017-11-01AE03423ND
2017-11-01AE03392ND
2017-11-01AE03391ND
2018-02-13AE135341.10 ppb
2018-02-13AE135381.20 ppb
2018-02-13AE135351.10 ppb
2018-02-13AE135371.10 ppb
2018-05-10AE25912ND
2018-05-10AE25906ND
2018-05-10AE25882ND
2018-05-10AE25885ND
2018-08-22AE380942.10 ppb
2018-08-22AE380912.30 ppb
2018-08-22AE380822.20 ppb
2018-08-22AE380772.30 ppb
2018-09-28AE422371.50 ppb
2018-10-01AE422331.60 ppb
2018-10-01AE422311.20 ppb
2018-10-01AE422291.40 ppb
2018-10-01AE422321.50 ppb
2019-02-14AE54587ND
2019-02-14AE54583ND
2019-02-14AE54585ND
2019-02-14AE54584ND
2019-05-13AE659161.000 ppb
2019-05-13AE659201.000 ppb
2019-05-13AE65921ND
2019-05-13AE659171.10 ppb
2019-08-07AE777921.50 ppb
2019-08-07AE777311.60 ppb
2019-08-07AE777281.50 ppb
2019-08-07AE777301.90 ppb
2019-08-07AE777321.60 ppb
2019-10-29AE87848ND
2019-10-29AE87841ND
2019-10-29AE87851ND
2019-10-29AE87854ND