Bromoform
Cedarburg L & W Commission
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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 | 0.243 ppb | 15 | 5 | ND - 2.10 ppb |
2015 | 0.286 ppb | 26 | 5 | ND - 3.50 ppb |
2016 | 0.241 ppb | 25 | 6 | ND - 3.00 ppb |
2017 | 0.131 ppb | 27 | 4 | ND - 1.70 ppb |
2018 | 0.336 ppb | 26 | 4 | ND - 4.50 ppb |
2019 | 0.189 ppb | 29 | 5 | ND - 2.50 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform 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 | 772841 | ND |
2014-03-04 | 772844 | ND |
2014-03-04 | 772846 | 0.280 ppb |
2014-05-12 | 785091 | ND |
2014-05-12 | 785094 | ND |
2014-05-12 | 785096 | 0.400 ppb |
2014-08-19 | 811812 | ND |
2014-08-19 | 811810 | ND |
2014-08-19 | 811815 | ND |
2014-08-19 | 811816 | 0.360 ppb |
2014-08-19 | 811809 | 0.500 ppb |
2014-08-19 | 811808 | 2.10 ppb |
2014-12-01 | 833295 | ND |
2014-12-01 | 833292 | ND |
2014-12-01 | 833297 | ND |
2015-03-10 | 847452 | ND |
2015-03-10 | 847447 | ND |
2015-03-10 | 847449 | ND |
2015-03-10 | 847457 | ND |
2015-03-10 | 847450 | ND |
2015-03-10 | 847454 | 0.640 ppb |
2015-06-01 | 862720 | ND |
2015-06-01 | 862719 | ND |
2015-06-01 | 862715 | ND |
2015-06-01 | 862716 | ND |
2015-06-01 | 862717 | ND |
2015-06-01 | 862718 | ND |
2015-07-28 | 873580 | ND |
2015-07-28 | 873576 | ND |
2015-07-28 | 873577 | ND |
2015-07-28 | 873578 | ND |
2015-07-28 | 873579 | ND |
2015-07-28 | 873581 | 0.570 ppb |
2015-07-28 | 873582 | 2.30 ppb |
2015-07-28 | 873583 | 3.50 ppb |
2015-10-05 | 887228 | ND |
2015-10-05 | 887224 | ND |
2015-10-05 | 887225 | ND |
2015-10-05 | 887226 | ND |
2015-10-05 | 887227 | ND |
2015-10-05 | 887229 | 0.420 ppb |
2016-03-08 | 908901 | ND |
2016-03-08 | 908895 | ND |
2016-03-08 | 908897 | ND |
2016-03-08 | 908899 | ND |
2016-03-08 | 908898 | ND |
2016-03-08 | 908903 | 0.450 ppb |
2016-05-16 | 921446 | ND |
2016-05-16 | 921443 | ND |
2016-05-16 | 921445 | ND |
2016-05-16 | 921444 | ND |
2016-05-16 | 921447 | 0.460 ppb |
2016-08-15 | 939239 | ND |
2016-08-15 | 939235 | ND |
2016-08-15 | 939236 | ND |
2016-08-15 | 939238 | ND |
2016-08-15 | 939237 | ND |
2016-08-15 | 939240 | 0.210 ppb |
2016-08-15 | 939242 | 1.60 ppb |
2016-08-15 | 939241 | 3.00 ppb |
2016-10-17 | 953741 | ND |
2016-10-17 | 953737 | ND |
2016-10-17 | 953738 | ND |
2016-10-17 | 953739 | ND |
2016-10-17 | 953740 | ND |
2016-10-17 | 953742 | 0.310 ppb |
2017-01-16 | 969880 | ND |
2017-01-16 | 969877 | ND |
2017-01-16 | 969906 | ND |
2017-01-16 | 969884 | ND |
2017-01-16 | 969904 | ND |
2017-01-16 | 969905 | ND |
2017-01-16 | 969887 | ND |
2017-04-12 | 982952 | ND |
2017-04-12 | 982948 | ND |
2017-04-12 | 982949 | ND |
2017-04-12 | 982951 | ND |
2017-04-12 | 982950 | ND |
2017-04-12 | 982954 | 0.290 ppb |
2017-07-24 | 1006157 | ND |
2017-07-24 | 1006154 | ND |
2017-07-24 | 1006155 | ND |
2017-07-24 | 1006159 | ND |
2017-07-24 | 1006156 | ND |
2017-07-24 | 1006158 | 0.440 ppb |
2017-07-24 | 1006160 | 1.10 ppb |
2017-07-24 | 1006161 | 1.70 ppb |
2017-11-13 | 1029331 | ND |
2017-11-13 | 1029330 | ND |
2017-11-13 | 1029326 | ND |
2017-11-13 | 1029327 | ND |
2017-11-13 | 1029328 | ND |
2017-11-13 | 1029329 | ND |
2018-01-11 | 1036953 | ND |
2018-01-11 | 1036949 | ND |
2018-01-11 | 1036950 | ND |
2018-01-11 | 1036952 | ND |
2018-01-11 | 1036951 | ND |
2018-01-11 | 1036954 | 0.610 ppb |
2018-04-16 | 1050258 | ND |
2018-04-16 | 1050257 | ND |
2018-04-16 | 1050253 | ND |
2018-04-16 | 1050254 | ND |
2018-04-16 | 1050256 | ND |
2018-04-16 | 1050255 | ND |
2018-07-31 | 1070622 | ND |
2018-07-31 | 1070621 | ND |
2018-07-31 | 1070617 | ND |
2018-07-31 | 1070618 | ND |
2018-07-31 | 1070620 | ND |
2018-07-31 | 1070619 | ND |
2018-07-31 | 1070624 | 3.20 ppb |
2018-07-31 | 1070623 | 4.50 ppb |
2018-11-06 | 1091352 | ND |
2018-11-06 | 1091348 | ND |
2018-11-06 | 1091349 | ND |
2018-11-06 | 1091350 | ND |
2018-11-06 | 1091351 | ND |
2018-11-06 | 1091353 | 0.420 ppb |
2019-01-08 | 1100042 | ND |
2019-01-08 | 1100041 | ND |
2019-01-08 | 1100040 | ND |
2019-01-08 | 1100039 | ND |
2019-01-08 | 1100043 | ND |
2019-01-08 | 1100044 | 0.390 ppb |
2019-06-03 | 1124605 | ND |
2019-06-03 | 1124606 | ND |
2019-06-03 | 1124603 | ND |
2019-06-03 | 1124604 | ND |
2019-06-24 | 1130092 | ND |
2019-06-24 | 1130093 | ND |
2019-07-23 | 1136373 | ND |
2019-08-19 | 1141966 | ND |
2019-08-19 | 1141962 | ND |
2019-08-19 | 1141963 | ND |
2019-08-19 | 1141965 | ND |
2019-08-19 | 1141964 | ND |
2019-08-19 | 1141967 | 0.350 ppb |
2019-08-19 | 1141968 | 2.00 ppb |
2019-08-19 | 1141969 | 2.50 ppb |
2019-09-09 | 1146111 | ND |
2019-10-21 | 1156361 | ND |
2019-11-05 | 1159254 | ND |
2019-11-05 | 1159251 | ND |
2019-11-05 | 1159252 | ND |
2019-11-05 | 1159253 | ND |
2019-11-05 | 1159255 | 0.250 ppb |
2019-12-10 | 1165212 | ND |