Dibromochloromethane
Fond Du Lac Waterworks
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.
120
Samples
0
Samples exceeding legal limit (MCL)
117
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 2.89 ppb | 19 | 19 | 0.270 ppb - 5.10 ppb |
| 2015 | 3.18 ppb | 21 | 21 | 0.280 ppb - 6.00 ppb |
| 2016 | 3.53 ppb | 18 | 17 | ND - 6.90 ppb |
| 2017 | 6.08 ppb | 21 | 21 | 0.360 ppb - 11.0 ppb |
| 2018 | 3.81 ppb | 23 | 21 | ND - 14.0 ppb |
| 2019 | 6.19 ppb | 18 | 18 | 0.900 ppb - 16.0 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 |
|---|---|---|
| 2014-02-17 | 770785 | 1.40 ppb |
| 2014-02-17 | 770783 | 4.60 ppb |
| 2014-02-18 | 771010 | 0.270 ppb |
| 2014-02-18 | 771007 | 0.940 ppb |
| 2014-04-14 | 780745 | 1.10 ppb |
| 2014-05-14 | 785687 | 1.20 ppb |
| 2014-05-14 | 785685 | 3.60 ppb |
| 2014-05-14 | 785684 | 3.70 ppb |
| 2014-05-14 | 785686 | 3.90 ppb |
| 2014-07-21 | 804444 | 2.40 ppb |
| 2014-08-12 | 809931 | 1.70 ppb |
| 2014-08-12 | 809930 | 4.60 ppb |
| 2014-08-12 | 809928 | 4.90 ppb |
| 2014-08-12 | 809929 | 5.10 ppb |
| 2014-10-29 | 828515 | 0.600 ppb |
| 2014-11-11 | 830917 | 1.10 ppb |
| 2014-11-11 | 830915 | 4.40 ppb |
| 2014-11-11 | 830914 | 4.50 ppb |
| 2014-11-11 | 830916 | 4.90 ppb |
| 2015-02-03 | 841710 | 0.280 ppb |
| 2015-02-03 | 841707 | 1.000 ppb |
| 2015-02-16 | 843832 | 1.80 ppb |
| 2015-02-16 | 843830 | 4.70 ppb |
| 2015-02-16 | 843831 | 5.40 ppb |
| 2015-02-16 | 843829 | 6.00 ppb |
| 2015-04-21 | 855442 | 0.770 ppb |
| 2015-05-18 | 860211 | 0.880 ppb |
| 2015-05-18 | 860209 | 3.40 ppb |
| 2015-05-18 | 860210 | 4.60 ppb |
| 2015-05-18 | 860208 | 5.20 ppb |
| 2015-07-20 | 871829 | 0.780 ppb |
| 2015-08-17 | 877448 | 2.30 ppb |
| 2015-08-17 | 877446 | 3.90 ppb |
| 2015-08-17 | 877447 | 4.00 ppb |
| 2015-08-17 | 877445 | 4.80 ppb |
| 2015-10-27 | 891260 | 0.890 ppb |
| 2015-11-11 | 893801 | 1.50 ppb |
| 2015-11-11 | 893799 | 4.40 ppb |
| 2015-11-11 | 893800 | 4.80 ppb |
| 2015-11-11 | 893798 | 5.40 ppb |
| 2016-01-22 | 902600 | 0.230 ppb |
| 2016-02-15 | 905422 | 3.10 ppb |
| 2016-02-15 | 905420 | 4.60 ppb |
| 2016-02-15 | 905421 | 5.50 ppb |
| 2016-02-15 | 905419 | 5.90 ppb |
| 2016-03-08 | 908871 | ND |
| 2016-03-08 | 908868 | 0.650 ppb |
| 2016-04-06 | 914177 | 0.970 ppb |
| 2016-08-15 | 939250 | 2.10 ppb |
| 2016-08-15 | 939248 | 3.20 ppb |
| 2016-08-15 | 939249 | 4.80 ppb |
| 2016-08-15 | 939247 | 6.70 ppb |
| 2016-09-26 | 948632 | 4.30 ppb |
| 2016-11-14 | 958942 | 2.80 ppb |
| 2016-11-14 | 958940 | 5.20 ppb |
| 2016-11-14 | 958941 | 5.70 ppb |
| 2016-11-14 | 958939 | 6.90 ppb |
| 2016-11-28 | 961245 | 0.890 ppb |
| 2017-02-13 | 973446 | 1.70 ppb |
| 2017-02-13 | 973445 | 4.40 ppb |
| 2017-02-13 | 973444 | 4.70 ppb |
| 2017-02-13 | 973443 | 4.90 ppb |
| 2017-02-14 | 973636 | 0.580 ppb |
| 2017-03-06 | 976159 | 0.360 ppb |
| 2017-04-24 | 985200 | 1.10 ppb |
| 2017-05-15 | 990472 | 4.80 ppb |
| 2017-05-15 | 990471 | 9.90 ppb |
| 2017-05-15 | 990470 | 10.00 ppb |
| 2017-05-15 | 990469 | 11.0 ppb |
| 2017-07-26 | 1006861 | 4.30 ppb |
| 2017-08-16 | 1011998 | 8.70 ppb |
| 2017-08-16 | 1011999 | 9.20 ppb |
| 2017-08-16 | 1011997 | 9.50 ppb |
| 2017-08-16 | 1012000 | 10.00 ppb |
| 2017-10-09 | 1023185 | 4.70 ppb |
| 2017-11-13 | 1029593 | 5.60 ppb |
| 2017-11-13 | 1029591 | 6.80 ppb |
| 2017-11-13 | 1029592 | 7.70 ppb |
| 2017-11-13 | 1029590 | 7.70 ppb |
| 2018-02-13 | 1040803 | 1.10 ppb |
| 2018-02-13 | 1040802 | 5.60 ppb |
| 2018-02-13 | 1040801 | 6.30 ppb |
| 2018-02-13 | 1040800 | 6.50 ppb |
| 2018-02-21 | 1042067 | ND |
| 2018-02-21 | 1042069 | 0.420 ppb |
| 2018-02-21 | 1042065 | 3.50 ppb |
| 2018-04-11 | 1049881 | 0.380 ppb |
| 2018-04-11 | 1049883 | 0.600 ppb |
| 2018-05-14 | 1055389 | 1.60 ppb |
| 2018-05-14 | 1055386 | 3.70 ppb |
| 2018-05-14 | 1055387 | 5.20 ppb |
| 2018-05-14 | 1055388 | 8.60 ppb |
| 2018-08-13 | 1073425 | 1.40 ppb |
| 2018-08-13 | 1073422 | 3.40 ppb |
| 2018-08-13 | 1073423 | 8.10 ppb |
| 2018-08-13 | 1073424 | 14.0 ppb |
| 2018-08-15 | 1074181 | ND |
| 2018-08-15 | 1074183 | 0.730 ppb |
| 2018-11-12 | 1092410 | 2.00 ppb |
| 2018-11-12 | 1092413 | 2.60 ppb |
| 2018-11-12 | 1092411 | 5.20 ppb |
| 2018-11-12 | 1092412 | 6.60 ppb |
| 2019-02-18 | 1105569 | 1.20 ppb |
| 2019-02-18 | 1105566 | 5.20 ppb |
| 2019-02-18 | 1105567 | 8.50 ppb |
| 2019-02-18 | 1105568 | 8.70 ppb |
| 2019-03-06 | 1108269 | 0.900 ppb |
| 2019-03-06 | 1108265 | 4.20 ppb |
| 2019-05-14 | 1121045 | 1.80 ppb |
| 2019-05-14 | 1121046 | 1.90 ppb |
| 2019-05-14 | 1121047 | 7.20 ppb |
| 2019-05-14 | 1121048 | 9.50 ppb |
| 2019-08-12 | 1140153 | 4.50 ppb |
| 2019-08-12 | 1140151 | 8.80 ppb |
| 2019-08-12 | 1140150 | 11.0 ppb |
| 2019-08-12 | 1140152 | 16.0 ppb |
| 2019-11-11 | 1160248 | 2.60 ppb |
| 2019-11-11 | 1160247 | 3.30 ppb |
| 2019-11-11 | 1160249 | 7.70 ppb |
| 2019-11-11 | 1160250 | 8.40 ppb |