Dibromochloromethane
Grand Prairie Bayou 2 PWA
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 1.80 ppb | 16 | 10 | ND - 5.70 ppb |
2015 | 0.194 ppb | 13 | 3 | ND - 2.40 ppb |
2016 | 0.00770 ppb | 10 | 2 | ND - 0.0516 ppb |
2017 | ND | 8 | 0 | ND |
2018 | 0.00172 ppb | 12 | 1 | ND - 0.0206 ppb |
2019 | 0.148 ppb | 10 | 3 | ND - 1.40 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 |
---|---|---|
2014-01-13 | 14016002102 | 1.80 ppb |
2014-01-13 | 14016001902 | ND |
2014-01-13 | 14016002202 | 1.60 ppb |
2014-01-13 | 14016002002 | ND |
2014-04-02 | 14093007502 | 5.70 ppb |
2014-04-02 | 14093007702 | 2.00 ppb |
2014-04-02 | 14093007602 | ND |
2014-04-02 | 14093007402 | ND |
2014-07-01 | 14184002302 | 2.00 ppb |
2014-07-01 | 14184002202 | ND |
2014-07-01 | 14184002402 | ND |
2014-07-01 | 14184002502 | 3.70 ppb |
2014-10-07 | 14282002302 | 2.20 ppb |
2014-10-07 | 14282002102 | 3.60 ppb |
2014-10-07 | 14282002602 | 3.40 ppb |
2014-10-07 | 14282002002 | 2.80 ppb |
2015-01-05 | 15008013702 | ND |
2015-01-05 | 15008013602 | ND |
2015-04-01 | 15092007902 | 2.40 ppb |
2015-04-01 | 15092008002 | ND |
2015-05-06 | 15127013503 | 0.0664 ppb |
2015-05-06 | 15127013509 | ND |
2015-07-21 | 15204005902 | ND |
2015-07-21 | 15204006103 | 0.0516 ppb |
2015-07-21 | 15204006002 | ND |
2015-10-06 | 15281006002 | ND |
2015-10-06 | 15281005902 | ND |
2015-11-23 | 15327000401 | ND |
2015-11-23 | 15327000501 | ND |
2016-01-05 | 16008000902 | ND |
2016-01-05 | 16008000802 | ND |
2016-04-05 | 16098002102 | ND |
2016-04-05 | 16098002002 | ND |
2016-07-06 | 16189015802 | ND |
2016-07-06 | 16189015902 | ND |
2016-08-16 | 16230003503 | 0.0254 ppb |
2016-10-04 | 16279001502 | ND |
2016-10-04 | 16279001402 | ND |
2016-10-10 | 16287007103 | 0.0516 ppb |
2017-01-04 | 17005015502 | ND |
2017-01-04 | 17005015602 | ND |
2017-04-04 | 17095002302 | ND |
2017-04-04 | 17095002402 | ND |
2017-07-04 | 17187005702 | ND |
2017-07-04 | 17187005802 | ND |
2017-10-02 | 17278004202 | ND |
2017-10-02 | 17278004102 | ND |
2018-01-03 | 18004010702 | ND |
2018-01-03 | 18004010802 | ND |
2018-04-04 | 18095013402 | ND |
2018-04-04 | 18095013502 | ND |
2018-04-17 | 18109015401 | ND |
2018-05-22 | 18144004003 | 0.0206 ppb |
2018-07-04 | 18186015102 | ND |
2018-07-04 | 18186015002 | ND |
2018-08-14 | 18228000303 | ND |
2018-10-01 | 18277000202 | ND |
2018-10-01 | 18277000102 | ND |
2018-10-24 | 18298004801 | ND |
2019-01-09 | 19010015502 | ND |
2019-01-09 | 19010015602 | ND |
2019-02-12 | 19045004602 | ND |
2019-02-12 | 19045004502 | ND |
2019-07-10 | 19192006502 | 1.40 ppb |
2019-07-10 | 19192006402 | ND |
2019-07-17 | 19199004203 | 0.0627 ppb |
2019-10-02 | 19277006203 | 0.0162 ppb |
2019-10-02 | 19277006302 | ND |
2019-10-02 | 19277006102 | ND |