Bromodichloromethane
Fond Du Lac Waterworks
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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)
105
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.769 ppb | 19 | 16 | ND - 1.50 ppb |
| 2015 | 0.921 ppb | 21 | 20 | ND - 1.70 ppb |
| 2016 | 0.986 ppb | 18 | 16 | ND - 1.80 ppb |
| 2017 | 1.70 ppb | 21 | 19 | ND - 3.00 ppb |
| 2018 | 1.03 ppb | 23 | 17 | ND - 3.10 ppb |
| 2019 | 1.64 ppb | 18 | 17 | ND - 3.60 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 | 0.340 ppb |
| 2014-02-17 | 770783 | 1.20 ppb |
| 2014-02-18 | 771010 | ND |
| 2014-02-18 | 771007 | 0.310 ppb |
| 2014-04-14 | 780745 | 0.490 ppb |
| 2014-05-14 | 785687 | ND |
| 2014-05-14 | 785684 | 0.880 ppb |
| 2014-05-14 | 785685 | 0.960 ppb |
| 2014-05-14 | 785686 | 1.000 ppb |
| 2014-07-21 | 804444 | 0.650 ppb |
| 2014-08-12 | 809931 | 0.520 ppb |
| 2014-08-12 | 809928 | 1.30 ppb |
| 2014-08-12 | 809929 | 1.50 ppb |
| 2014-08-12 | 809930 | 1.50 ppb |
| 2014-10-29 | 828515 | ND |
| 2014-11-11 | 830917 | 0.360 ppb |
| 2014-11-11 | 830915 | 1.000 ppb |
| 2014-11-11 | 830914 | 1.20 ppb |
| 2014-11-11 | 830916 | 1.40 ppb |
| 2015-02-03 | 841710 | ND |
| 2015-02-03 | 841707 | 0.520 ppb |
| 2015-02-16 | 843832 | 0.490 ppb |
| 2015-02-16 | 843830 | 1.30 ppb |
| 2015-02-16 | 843831 | 1.60 ppb |
| 2015-02-16 | 843829 | 1.70 ppb |
| 2015-04-21 | 855442 | 0.440 ppb |
| 2015-05-18 | 860211 | 0.220 ppb |
| 2015-05-18 | 860209 | 1.10 ppb |
| 2015-05-18 | 860210 | 1.40 ppb |
| 2015-05-18 | 860208 | 1.70 ppb |
| 2015-07-20 | 871829 | 0.370 ppb |
| 2015-08-17 | 877448 | 0.590 ppb |
| 2015-08-17 | 877447 | 1.000 ppb |
| 2015-08-17 | 877446 | 1.000 ppb |
| 2015-08-17 | 877445 | 1.30 ppb |
| 2015-10-27 | 891260 | 0.280 ppb |
| 2015-11-11 | 893801 | 0.330 ppb |
| 2015-11-11 | 893799 | 1.20 ppb |
| 2015-11-11 | 893800 | 1.40 ppb |
| 2015-11-11 | 893798 | 1.40 ppb |
| 2016-01-22 | 902600 | 0.410 ppb |
| 2016-02-15 | 905422 | 0.840 ppb |
| 2016-02-15 | 905420 | 1.30 ppb |
| 2016-02-15 | 905421 | 1.60 ppb |
| 2016-02-15 | 905419 | 1.70 ppb |
| 2016-03-08 | 908868 | ND |
| 2016-03-08 | 908871 | ND |
| 2016-04-06 | 914177 | 0.590 ppb |
| 2016-08-15 | 939250 | 0.580 ppb |
| 2016-08-15 | 939248 | 1.000 ppb |
| 2016-08-15 | 939249 | 1.20 ppb |
| 2016-08-15 | 939247 | 1.70 ppb |
| 2016-09-26 | 948632 | 1.20 ppb |
| 2016-11-14 | 958942 | 0.710 ppb |
| 2016-11-14 | 958940 | 1.40 ppb |
| 2016-11-14 | 958941 | 1.40 ppb |
| 2016-11-14 | 958939 | 1.80 ppb |
| 2016-11-28 | 961245 | 0.320 ppb |
| 2017-02-13 | 973446 | 0.370 ppb |
| 2017-02-13 | 973445 | 1.20 ppb |
| 2017-02-13 | 973443 | 1.30 ppb |
| 2017-02-13 | 973444 | 1.40 ppb |
| 2017-02-14 | 973636 | ND |
| 2017-03-06 | 976159 | ND |
| 2017-04-24 | 985200 | 0.670 ppb |
| 2017-05-15 | 990472 | 1.30 ppb |
| 2017-05-15 | 990470 | 2.90 ppb |
| 2017-05-15 | 990471 | 3.00 ppb |
| 2017-05-15 | 990469 | 3.00 ppb |
| 2017-07-26 | 1006861 | 1.30 ppb |
| 2017-08-16 | 1011997 | 2.60 ppb |
| 2017-08-16 | 1011998 | 2.60 ppb |
| 2017-08-16 | 1011999 | 2.60 ppb |
| 2017-08-16 | 1012000 | 3.00 ppb |
| 2017-10-09 | 1023185 | 1.60 ppb |
| 2017-11-13 | 1029593 | 1.40 ppb |
| 2017-11-13 | 1029591 | 1.80 ppb |
| 2017-11-13 | 1029590 | 1.80 ppb |
| 2017-11-13 | 1029592 | 1.90 ppb |
| 2018-02-13 | 1040803 | ND |
| 2018-02-13 | 1040802 | 1.80 ppb |
| 2018-02-13 | 1040800 | 2.00 ppb |
| 2018-02-13 | 1040801 | 2.10 ppb |
| 2018-02-21 | 1042067 | ND |
| 2018-02-21 | 1042069 | ND |
| 2018-02-21 | 1042065 | 1.20 ppb |
| 2018-04-11 | 1049881 | ND |
| 2018-04-11 | 1049883 | 0.360 ppb |
| 2018-05-14 | 1055389 | 0.350 ppb |
| 2018-05-14 | 1055386 | 1.000 ppb |
| 2018-05-14 | 1055387 | 1.50 ppb |
| 2018-05-14 | 1055388 | 2.20 ppb |
| 2018-08-13 | 1073425 | ND |
| 2018-08-13 | 1073422 | 0.430 ppb |
| 2018-08-13 | 1073423 | 2.50 ppb |
| 2018-08-13 | 1073424 | 3.10 ppb |
| 2018-08-15 | 1074181 | ND |
| 2018-08-15 | 1074183 | 0.290 ppb |
| 2018-11-12 | 1092410 | 0.560 ppb |
| 2018-11-12 | 1092413 | 0.610 ppb |
| 2018-11-12 | 1092411 | 1.70 ppb |
| 2018-11-12 | 1092412 | 2.00 ppb |
| 2019-02-18 | 1105569 | 0.250 ppb |
| 2019-02-18 | 1105566 | 0.990 ppb |
| 2019-02-18 | 1105568 | 2.20 ppb |
| 2019-02-18 | 1105567 | 2.80 ppb |
| 2019-03-06 | 1108269 | ND |
| 2019-03-06 | 1108265 | 1.20 ppb |
| 2019-05-14 | 1121045 | 0.480 ppb |
| 2019-05-14 | 1121046 | 0.500 ppb |
| 2019-05-14 | 1121047 | 2.30 ppb |
| 2019-05-14 | 1121048 | 2.80 ppb |
| 2019-08-12 | 1140153 | 1.30 ppb |
| 2019-08-12 | 1140150 | 2.60 ppb |
| 2019-08-12 | 1140151 | 2.80 ppb |
| 2019-08-12 | 1140152 | 3.60 ppb |
| 2019-11-11 | 1160248 | 0.700 ppb |
| 2019-11-11 | 1160247 | 0.810 ppb |
| 2019-11-11 | 1160250 | 1.70 ppb |
| 2019-11-11 | 1160249 | 2.50 ppb |