Dibromochloromethane
City of Fairmont
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.
100
Samples
0
Samples exceeding legal limit (MCL)
69
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.677 ppb | 16 | 11 | ND - 1.46 ppb |
| 2015 | 1.08 ppb | 16 | 16 | 0.540 ppb - 2.30 ppb |
| 2016 | 0.596 ppb | 16 | 9 | ND - 1.63 ppb |
| 2017 | 0.527 ppb | 16 | 12 | ND - 1.06 ppb |
| 2018 | 0.411 ppb | 20 | 15 | ND - 0.900 ppb |
| 2019 | 0.525 ppb | 16 | 6 | ND - 1.50 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 |
|---|---|---|
| 2014-03-04 | S2DBP_1403495-04 | 0.600 ppb |
| 2014-03-04 | S2DBP_1403495-03 | ND |
| 2014-03-04 | S2DBP_1403495-02 | 0.600 ppb |
| 2014-03-04 | S2DBP_1403495-01 | 0.500 ppb |
| 2014-06-09 | S2DBP_1406A18-04 | ND |
| 2014-06-09 | S2DBP_1406A18-03 | ND |
| 2014-06-09 | S2DBP_1406A18-02 | ND |
| 2014-06-09 | S2DBP_1406A18-01 | ND |
| 2014-09-11 | S2DBP_1409E32-04 | 1.09 ppb |
| 2014-09-11 | S2DBP_1409E32-03 | 1.03 ppb |
| 2014-09-11 | S2DBP_1409E32-02 | 1.000 ppb |
| 2014-09-11 | S2DBP_1409E32-01 | 1.14 ppb |
| 2014-12-04 | S2DBP_1412694-04 | 1.46 ppb |
| 2014-12-04 | S2DBP_1412691-01 | 1.08 ppb |
| 2014-12-04 | S2DBP_1412691-03 | 1.20 ppb |
| 2014-12-04 | S2DBP_1412694-02 | 1.13 ppb |
| 2015-03-03 | S2DBP_1503218-04 | 0.670 ppb |
| 2015-03-03 | S2DBP_1503218-03 | 0.950 ppb |
| 2015-03-03 | S2DBP_1503218-02 | 0.540 ppb |
| 2015-03-03 | S2DBP_1503218-01 | 0.620 ppb |
| 2015-06-03 | S2DBP_1506511-04 | 0.880 ppb |
| 2015-06-03 | S2DBP_1506511-03 | 0.830 ppb |
| 2015-06-03 | S2DBP_1506511-02 | 0.920 ppb |
| 2015-06-03 | S2DBP_1506511-01 | 1.11 ppb |
| 2015-09-08 | S2DBP_1509920-04 | 1.70 ppb |
| 2015-09-08 | S2DBP_1509920--0 | 2.30 ppb |
| 2015-09-08 | S2DBP_1509920-02 | 1.80 ppb |
| 2015-09-08 | S2DBP_1509920-03 | 1.60 ppb |
| 2015-12-07 | 1512810-04A | 0.810 ppb |
| 2015-12-07 | 1512810-03A | 0.990 ppb |
| 2015-12-07 | 1512810-02A | 0.890 ppb |
| 2015-12-07 | 1512810-01A | 0.700 ppb |
| 2016-03-07 | 16030809-04A | ND |
| 2016-03-07 | 16030809-03A | ND |
| 2016-03-07 | 16030809-02A | ND |
| 2016-03-07 | 16030809-01A | ND |
| 2016-06-06 | 16060585-03A | ND |
| 2016-06-06 | 16060585-01A | ND |
| 2016-06-06 | 16060585-02A | 0.510 ppb |
| 2016-06-06 | 16060585-04A | ND |
| 2016-09-06 | 16090353-04A | 1.40 ppb |
| 2016-09-06 | 16090353-03A | 1.63 ppb |
| 2016-09-06 | 16090353-02A | 1.49 ppb |
| 2016-09-06 | 16090353-01A | 1.43 ppb |
| 2016-12-05 | 16120601-04A | 0.680 ppb |
| 2016-12-05 | 16120601-03A | 1.01 ppb |
| 2016-12-05 | 16120601-02A | 0.700 ppb |
| 2016-12-05 | 16120601-01A | 0.690 ppb |
| 2017-03-06 | 17030795-04A | 0.340 ppb |
| 2017-03-06 | 17030795-03A | 0.470 ppb |
| 2017-03-06 | 17030795-02A | 0.340 ppb |
| 2017-03-06 | 17030795-01A | 0.330 ppb |
| 2017-06-05 | 17060459-04A | 0.790 ppb |
| 2017-06-05 | 17060459-03A | 1.06 ppb |
| 2017-06-05 | 17060459-02A | 0.940 ppb |
| 2017-06-05 | 17060459-01A | 0.960 ppb |
| 2017-09-05 | 17090298-04A | ND |
| 2017-09-05 | 17090298-03A | ND |
| 2017-09-05 | 17090298-02A | ND |
| 2017-09-05 | 17090298-01A | ND |
| 2017-12-04 | 17120311-03A | 0.700 ppb |
| 2017-12-04 | 17120311-01A | 0.730 ppb |
| 2017-12-04 | 17120311-02A | 1.000 ppb |
| 2017-12-04 | 17120311-04A | 0.770 ppb |
| 2018-03-05 | 18030483-04A | ND |
| 2018-03-05 | 18030483-03A | ND |
| 2018-03-05 | 18030483-02A | ND |
| 2018-03-05 | 18030483-01A | ND |
| 2018-06-04 | 18060328-04A | 0.320 ppb |
| 2018-06-04 | 18060328-03A | 0.350 ppb |
| 2018-06-04 | 18060328-02A | 0.530 ppb |
| 2018-06-04 | 18060328-01A | 0.340 ppb |
| 2018-09-04 | 18090095-02A | 0.770 ppb |
| 2018-09-04 | 18090095-01A | 0.710 ppb |
| 2018-09-04 | 18090095-03A | 0.750 ppb |
| 2018-09-04 | 18090095-04A | 0.740 ppb |
| 2018-12-03 | 297779-2018-DW | ND |
| 2018-12-03 | 297778-2018-DW | 0.500 ppb |
| 2018-12-03 | 297777-2018-DW | 0.900 ppb |
| 2018-12-03 | 297776-2018-DW | 0.800 ppb |
| 2018-12-03 | 18120109-04A | 0.420 ppb |
| 2018-12-03 | 18120109-03A | 0.320 ppb |
| 2018-12-03 | 18120109-02A | 0.390 ppb |
| 2018-12-03 | 18120109-01A | 0.380 ppb |
| 2019-03-04 | 19030263-03A | ND |
| 2019-03-04 | 19030263-01A | ND |
| 2019-03-04 | 19030263-02A | ND |
| 2019-03-04 | 19030263-04A | ND |
| 2019-06-03 | 19060140-04A | ND |
| 2019-06-03 | 19060140-03A | ND |
| 2019-06-03 | 19060140-02A | ND |
| 2019-06-03 | 19060140-01A | ND |
| 2019-09-09 | 35498689005 | ND |
| 2019-09-09 | 35498689004 | ND |
| 2019-09-09 | 35498689003 | 1.10 ppb |
| 2019-09-09 | 35498689001 | 1.50 ppb |
| 2019-12-09 | 7310818002 | 1.40 ppb |
| 2019-12-09 | 7310818003 | 1.40 ppb |
| 2019-12-09 | 7310818004 | 1.50 ppb |
| 2019-12-09 | 7310818001 | 1.50 ppb |