Bromodichloromethane
Erie City Water Authority
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 12.5 ppb | 28 | 28 | 6.00 ppb - 18.0 ppb |
2015 | 10.8 ppb | 36 | 36 | 4.10 ppb - 17.0 ppb |
2016 | 12.6 ppb | 51 | 51 | 5.80 ppb - 21.0 ppb |
2017 | 10.6 ppb | 35 | 35 | 5.60 ppb - 16.0 ppb |
2018 | 10.8 ppb | 40 | 40 | 3.00 ppb - 17.0 ppb |
2019 | 11.0 ppb | 38 | 38 | 3.70 ppb - 19.0 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 |
---|---|---|
2014-02-13 | 1072045001 | 17.5 ppb |
2014-02-13 | 1072045002 | 12.0 ppb |
2014-02-13 | 1072045003 | 11.4 ppb |
2014-02-13 | 1072045004 | 13.1 ppb |
2014-02-13 | 1072045005 | 10.8 ppb |
2014-02-13 | 1072045006 | 13.6 ppb |
2014-02-13 | 1072045007 | 11.0 ppb |
2014-02-13 | 1072045008 | 11.8 ppb |
2014-02-19 | 1072758001 | 12.3 ppb |
2014-05-13 | 3024701 | 6.60 ppb |
2014-08-12 | 201408140195 | 18.0 ppb |
2014-08-12 | 201408140197 | 16.0 ppb |
2014-08-12 | 201408140198 | 11.0 ppb |
2014-08-12 | 201408140199 | 14.0 ppb |
2014-08-12 | 201408140200 | 14.0 ppb |
2014-08-12 | 201408140201 | 16.0 ppb |
2014-08-12 | 201408140202 | 17.0 ppb |
2014-08-12 | 201408140203 | 13.0 ppb |
2014-08-19 | 3086006 | 7.50 ppb |
2014-09-23 | 3109579 | 6.00 ppb |
2014-11-12 | 201411180151 | 15.0 ppb |
2014-11-12 | 201411180153 | 12.0 ppb |
2014-11-12 | 201411180154 | 8.90 ppb |
2014-11-12 | 201411180155 | 14.0 ppb |
2014-11-13 | 201411180156 | 9.00 ppb |
2014-11-13 | 201411180157 | 14.0 ppb |
2014-11-13 | 201411180158 | 11.0 ppb |
2014-11-13 | 201411180159 | 13.0 ppb |
2015-02-12 | 12469799 | 9.70 ppb |
2015-02-12 | 12469804 | 9.20 ppb |
2015-02-12 | 12469809 | 7.30 ppb |
2015-02-12 | 12469819 | 8.70 ppb |
2015-02-12 | 12469814 | 8.60 ppb |
2015-02-12 | 12469824 | 10.00 ppb |
2015-02-12 | 12469829 | 9.20 ppb |
2015-02-12 | 12469834 | 8.50 ppb |
2015-04-15 | 12962953 | 4.10 ppb |
2015-05-06 | 13585625 | 5.70 ppb |
2015-05-12 | 12828884 | 8.90 ppb |
2015-05-12 | 12828889 | 12.0 ppb |
2015-05-12 | 12828899 | 13.0 ppb |
2015-05-13 | 12828874 | 13.0 ppb |
2015-05-13 | 12828879 | 12.0 ppb |
2015-05-13 | 12828894 | 10.00 ppb |
2015-05-13 | 12828904 | 9.70 ppb |
2015-05-13 | 12828909 | 11.0 ppb |
2015-08-12 | 13213091 | 17.0 ppb |
2015-08-12 | 13213096 | 15.0 ppb |
2015-08-12 | 13213101 | 13.0 ppb |
2015-08-12 | 13213106 | 15.0 ppb |
2015-08-12 | 13213111 | 13.0 ppb |
2015-08-12 | 13213121 | 16.0 ppb |
2015-08-13 | 13213116 | 16.0 ppb |
2015-08-13 | 13213126 | 14.0 ppb |
2015-08-18 | 13341523 | 11.0 ppb |
2015-09-17 | 13585696 | 6.80 ppb |
2015-11-12 | 13585827 | 12.0 ppb |
2015-11-12 | 13585832 | 9.90 ppb |
2015-11-12 | 13585837 | 9.00 ppb |
2015-11-12 | 13585842 | 12.0 ppb |
2015-11-12 | 13585852 | 9.60 ppb |
2015-11-12 | 13585857 | 9.40 ppb |
2015-11-12 | 13585862 | 9.50 ppb |
2015-11-17 | 13585847 | 9.50 ppb |
2016-02-15 | 13939315 | 7.00 ppb |
2016-02-15 | 13939330 | 6.80 ppb |
2016-02-15 | 13939340 | 7.20 ppb |
2016-02-15 | 13939345 | 7.10 ppb |
2016-02-16 | 13939310 | 8.10 ppb |
2016-02-16 | 13939320 | 7.20 ppb |
2016-02-16 | 13939325 | 7.70 ppb |
2016-02-16 | 13939335 | 8.20 ppb |
2016-03-02 | 14054795 | 9.20 ppb |
2016-03-02 | 14085756 | 7.50 ppb |
2016-03-02 | 14085761 | 9.30 ppb |
2016-03-02 | 14085766 | 10.00 ppb |
2016-05-24 | 14506980 | 5.80 ppb |
2016-06-01 | 14506571 | 14.0 ppb |
2016-06-01 | 14506576 | 12.0 ppb |
2016-06-01 | 14506581 | 12.0 ppb |
2016-06-01 | 14506586 | 12.0 ppb |
2016-06-01 | 14506591 | 12.0 ppb |
2016-06-01 | 14506596 | 13.0 ppb |
2016-06-01 | 14506601 | 12.0 ppb |
2016-06-02 | 14506606 | 12.0 ppb |
2016-06-02 | 14506611 | 14.0 ppb |
2016-06-02 | 14506616 | 16.0 ppb |
2016-06-02 | 14506621 | 18.0 ppb |
2016-06-02 | 15314418 | 17.0 ppb |
2016-07-20 | 14841750 | 7.40 ppb |
2016-08-15 | 14842490 | 15.0 ppb |
2016-08-15 | 14842495 | 14.0 ppb |
2016-08-15 | 14842500 | 14.0 ppb |
2016-08-15 | 14842505 | 16.0 ppb |
2016-08-15 | 15314429 | 17.0 ppb |
2016-08-16 | 14842424 | 20.0 ppb |
2016-08-16 | 14842429 | 19.0 ppb |
2016-08-16 | 14842434 | 16.0 ppb |
2016-08-16 | 14842439 | 18.0 ppb |
2016-08-16 | 14842444 | 19.0 ppb |
2016-08-16 | 14842449 | 18.0 ppb |
2016-08-16 | 14842510 | 21.0 ppb |
2016-08-23 | 15015243 | 7.30 ppb |
2016-11-14 | 15314889 | 17.0 ppb |
2016-11-14 | 15314894 | 13.0 ppb |
2016-11-14 | 15314899 | 11.0 ppb |
2016-11-14 | 15314904 | 14.0 ppb |
2016-11-14 | 15314909 | 13.0 ppb |
2016-11-14 | 15314914 | 16.0 ppb |
2016-11-15 | 15314919 | 9.30 ppb |
2016-11-15 | 15314924 | 10.00 ppb |
2016-11-15 | 15314929 | 9.40 ppb |
2016-11-15 | 15314934 | 12.0 ppb |
2016-11-15 | 15314939 | 14.0 ppb |
2016-11-15 | 15314944 | 16.0 ppb |
2017-02-13 | 15879920 | 12.0 ppb |
2017-02-13 | 15879925 | 11.0 ppb |
2017-02-13 | 15879930 | 9.00 ppb |
2017-02-13 | 15879935 | 12.0 ppb |
2017-02-13 | 15879940 | 13.0 ppb |
2017-02-13 | 15879945 | 9.80 ppb |
2017-02-13 | 15879950 | 10.00 ppb |
2017-02-13 | 15879955 | 11.0 ppb |
2017-05-15 | 16193259 | 13.0 ppb |
2017-05-15 | 16193270 | 9.40 ppb |
2017-05-15 | 16193281 | 15.0 ppb |
2017-05-15 | 16193292 | 12.0 ppb |
2017-05-15 | 16193303 | 13.0 ppb |
2017-05-15 | 16193314 | 14.0 ppb |
2017-05-15 | 16193325 | 15.0 ppb |
2017-05-16 | 16355398 | 7.90 ppb |
2017-05-17 | 16193336 | 9.70 ppb |
2017-07-13 | 16506424 | 8.90 ppb |
2017-08-14 | 16821505 | 13.0 ppb |
2017-08-14 | 16821516 | 12.0 ppb |
2017-08-14 | 16821527 | 10.00 ppb |
2017-08-14 | 16821538 | 12.0 ppb |
2017-08-14 | 16821549 | 13.0 ppb |
2017-08-14 | 16821560 | 11.0 ppb |
2017-08-14 | 16821571 | 12.0 ppb |
2017-08-14 | 16821582 | 16.0 ppb |
2017-09-20 | 16822092 | 6.50 ppb |
2017-11-15 | 17108010 | 7.30 ppb |
2017-11-15 | 17108021 | 6.90 ppb |
2017-11-15 | 17108032 | 5.60 ppb |
2017-11-15 | 17108043 | 8.70 ppb |
2017-11-15 | 17108054 | 5.60 ppb |
2017-11-15 | 17108065 | 6.80 ppb |
2017-11-15 | 17108076 | 7.80 ppb |
2017-11-15 | 17108087 | 10.00 ppb |
2018-01-08 | 3849232 | 3.00 ppb |
2018-02-12 | 3870425 | 9.70 ppb |
2018-02-12 | 3870426 | 9.10 ppb |
2018-02-12 | 3870427 | 8.10 ppb |
2018-02-12 | 3870428 | 11.0 ppb |
2018-02-12 | 3870429 | 8.10 ppb |
2018-02-12 | 3870430 | 8.90 ppb |
2018-02-12 | 3870431 | 7.30 ppb |
2018-02-12 | 3870464 | 8.70 ppb |
2018-02-12 | 3870432 | 9.50 ppb |
2018-02-20 | 3876401 | 4.40 ppb |
2018-05-08 | 3931239 | 6.40 ppb |
2018-05-14 | 3936117 | 11.0 ppb |
2018-05-14 | 3936118 | 14.0 ppb |
2018-05-14 | 3936119 | 13.0 ppb |
2018-05-14 | 3936120 | 13.0 ppb |
2018-05-14 | 3936121 | 12.0 ppb |
2018-05-14 | 3936122 | 12.0 ppb |
2018-05-14 | 3936123 | 8.90 ppb |
2018-05-14 | 3936124 | 14.0 ppb |
2018-05-21 | 3941491 | 7.00 ppb |
2018-08-06 | 4012683 | 9.50 ppb |
2018-08-13 | 4022525 | 15.0 ppb |
2018-08-13 | 4022526 | 15.0 ppb |
2018-08-13 | 4022527 | 12.0 ppb |
2018-08-13 | 4022528 | 15.0 ppb |
2018-08-13 | 4022529 | 13.0 ppb |
2018-08-13 | 4022530 | 13.0 ppb |
2018-08-13 | 4022531 | 12.0 ppb |
2018-08-13 | 4022532 | 17.0 ppb |
2018-08-21 | 4030524 | 8.40 ppb |
2018-11-05 | 4111318 | 7.00 ppb |
2018-11-12 | 4119046 | 12.0 ppb |
2018-11-12 | 4119047 | 12.0 ppb |
2018-11-12 | 4119048 | 12.0 ppb |
2018-11-12 | 4119049 | 12.0 ppb |
2018-11-12 | 4119050 | 12.0 ppb |
2018-11-12 | 4119051 | 12.0 ppb |
2018-11-12 | 4119052 | 9.20 ppb |
2018-11-12 | 4119053 | 14.0 ppb |
2019-01-23 | 4181796 | 3.70 ppb |
2019-02-12 | 4195420 | 12.0 ppb |
2019-02-12 | 4195421 | 10.00 ppb |
2019-02-12 | 4195422 | 10.00 ppb |
2019-02-12 | 4195423 | 11.0 ppb |
2019-02-12 | 4195424 | 8.90 ppb |
2019-02-12 | 4195425 | 9.60 ppb |
2019-02-12 | 4195426 | 10.00 ppb |
2019-02-12 | 4195427 | 11.0 ppb |
2019-05-14 | 4294512 | 9.70 ppb |
2019-05-14 | 4294514 | 8.90 ppb |
2019-05-14 | 4294516 | 6.70 ppb |
2019-05-14 | 4294518 | 8.50 ppb |
2019-05-14 | 4294520 | 8.00 ppb |
2019-05-14 | 4294522 | 8.00 ppb |
2019-05-14 | 4294524 | 5.80 ppb |
2019-05-14 | 4294526 | 11.0 ppb |
2019-05-21 | 4302831 | 5.80 ppb |
2019-08-12 | 4384063 | 15.0 ppb |
2019-08-12 | 4384064 | 17.0 ppb |
2019-08-12 | 4384065 | 14.0 ppb |
2019-08-12 | 4384066 | 18.0 ppb |
2019-08-12 | 4384067 | 17.0 ppb |
2019-08-12 | 4384068 | 13.0 ppb |
2019-08-12 | 4384069 | 13.0 ppb |
2019-08-12 | 4384078 | 16.0 ppb |
2019-08-12 | 4384070 | 19.0 ppb |
2019-09-10 | 4415500 | 8.50 ppb |
2019-11-12 | 4484315 | 13.0 ppb |
2019-11-12 | 4484317 | 11.0 ppb |
2019-11-12 | 4484319 | 10.00 ppb |
2019-11-12 | 4484321 | 12.0 ppb |
2019-11-12 | 4484323 | 11.0 ppb |
2019-11-12 | 4484325 | 11.0 ppb |
2019-11-12 | 4484327 | 8.70 ppb |
2019-11-12 | 4484333 | 14.0 ppb |
2019-11-12 | 4484329 | 14.0 ppb |
2019-11-18 | 4489097 | 3.80 ppb |