Dibromochloromethane
Youngstown City Public Water System
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.
184
Samples
0
Samples exceeding legal limit (MCL)
108
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 | 0.503 ppb | 32 | 8 | ND - 2.20 ppb |
| 2015 | 2.24 ppb | 32 | 32 | 0.570 ppb - 3.80 ppb |
| 2016 | 2.27 ppb | 32 | 32 | 1.03 ppb - 4.43 ppb |
| 2017 | 0.671 ppb | 32 | 16 | ND - 2.27 ppb |
| 2018 | 0.679 ppb | 32 | 16 | ND - 1.59 ppb |
| 2019 | 0.108 ppb | 24 | 4 | ND - 0.720 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 |
|---|---|---|
| 2014-02-04 | 14-11471-01 | ND |
| 2014-02-04 | 14-11471-02 | ND |
| 2014-02-04 | 14-11471-04 | ND |
| 2014-02-04 | 14-11471-05 | ND |
| 2014-02-04 | 14-11471-06 | ND |
| 2014-02-04 | 14-11471-07 | ND |
| 2014-02-05 | 14-11471-03 | ND |
| 2014-02-05 | 14-11471-08 | ND |
| 2014-05-06 | 14-15599-01 | ND |
| 2014-05-06 | 14-15599-02 | ND |
| 2014-05-06 | 14-15599-03 | ND |
| 2014-05-06 | 14-15599-04 | ND |
| 2014-05-06 | 14-15599-05 | ND |
| 2014-05-06 | 14-15599-06 | ND |
| 2014-05-06 | 14-15599-07 | ND |
| 2014-05-07 | 14-15599-08 | ND |
| 2014-08-05 | 14-20421-01 | ND |
| 2014-08-05 | 14-20421-02 | ND |
| 2014-08-05 | 14-20421-03 | ND |
| 2014-08-05 | 14-20421-04 | ND |
| 2014-08-05 | 14-20421-05 | ND |
| 2014-08-05 | 14-20421-06 | ND |
| 2014-08-06 | 14-20421-07 | ND |
| 2014-08-06 | 14-20421-08 | ND |
| 2014-11-04 | 14-25336-02 | 2.20 ppb |
| 2014-11-04 | 14-25336-03 | 1.90 ppb |
| 2014-11-04 | 14-25336-04 | 2.20 ppb |
| 2014-11-04 | 14-25336-06 | 1.90 ppb |
| 2014-11-04 | 14-25336-01 | 2.00 ppb |
| 2014-11-04 | 14-25336-07 | 1.90 ppb |
| 2014-11-05 | 14-25336-05 | 2.20 ppb |
| 2014-11-05 | 14-25336-08 | 1.80 ppb |
| 2015-02-04 | 15-11398-01 | 2.90 ppb |
| 2015-02-04 | 15-11398-02 | 3.10 ppb |
| 2015-02-04 | 15-11398-03 | 3.00 ppb |
| 2015-02-04 | 15-11398-04 | 3.00 ppb |
| 2015-02-04 | 15-11398-05 | 2.90 ppb |
| 2015-02-04 | 15-11398-06 | 3.00 ppb |
| 2015-02-04 | 15-11398-07 | 3.10 ppb |
| 2015-02-04 | 15-11398-08 | 2.80 ppb |
| 2015-05-04 | 15-15505-01 | 1.80 ppb |
| 2015-05-04 | 15-15505-02 | 2.10 ppb |
| 2015-05-04 | 15-15505-03 | 2.00 ppb |
| 2015-05-04 | 15-15505-04 | 2.60 ppb |
| 2015-05-04 | 15-15505-05 | 2.50 ppb |
| 2015-05-04 | 15-15505-06 | 2.50 ppb |
| 2015-05-04 | 15-15505-07 | 2.00 ppb |
| 2015-05-04 | 15-15505-08 | 1.90 ppb |
| 2015-08-04 | 15-20854-01 | 3.40 ppb |
| 2015-08-04 | 15-20854-02 | 3.70 ppb |
| 2015-08-04 | 15-20854-03 | 3.10 ppb |
| 2015-08-04 | 15-20854-04 | 1.80 ppb |
| 2015-08-04 | 15-20854-05 | 1.30 ppb |
| 2015-08-04 | 15-20854-06 | 1.80 ppb |
| 2015-08-04 | 15-20854-07 | 3.80 ppb |
| 2015-08-04 | 15-20854-08 | 3.80 ppb |
| 2015-11-02 | 20150825 | 0.920 ppb |
| 2015-11-02 | 20150826 | 2.06 ppb |
| 2015-11-02 | 20150827 | 1.08 ppb |
| 2015-11-02 | 20150828 | 0.990 ppb |
| 2015-11-02 | 20150830 | 0.610 ppb |
| 2015-11-02 | 20150829 | 0.850 ppb |
| 2015-11-02 | 20150831 | 0.840 ppb |
| 2015-11-02 | 20150832 | 0.570 ppb |
| 2016-02-02 | 20160123 | 1.63 ppb |
| 2016-02-02 | 20160124 | 1.88 ppb |
| 2016-02-02 | 20160125 | 1.82 ppb |
| 2016-02-02 | 20160126 | 1.88 ppb |
| 2016-02-03 | 20160127 | 1.35 ppb |
| 2016-02-03 | 20160128 | 1.58 ppb |
| 2016-02-03 | 20160129 | 1.94 ppb |
| 2016-02-03 | 20160130 | 1.41 ppb |
| 2016-05-02 | 20161839 | 1.64 ppb |
| 2016-05-02 | 20161840 | 1.03 ppb |
| 2016-05-02 | 20161841 | 1.47 ppb |
| 2016-05-02 | 20161842 | 1.35 ppb |
| 2016-05-02 | 20161844 | 1.91 ppb |
| 2016-05-02 | 20161846 | 1.71 ppb |
| 2016-05-03 | 20161843 | 1.08 ppb |
| 2016-05-03 | 20161845 | 1.76 ppb |
| 2016-08-03 | 20162180 | 4.43 ppb |
| 2016-08-03 | 20162183 | 3.46 ppb |
| 2016-08-03 | 20162184 | 2.23 ppb |
| 2016-08-03 | 20162185 | 3.92 ppb |
| 2016-08-04 | 20162181 | 3.57 ppb |
| 2016-08-04 | 20162182 | 2.99 ppb |
| 2016-08-04 | 20162186 | 3.95 ppb |
| 2016-08-04 | 20162204 | 2.60 ppb |
| 2016-11-01 | 20162593 | 2.47 ppb |
| 2016-11-01 | 20162595 | 2.51 ppb |
| 2016-11-01 | 20162598 | 2.39 ppb |
| 2016-11-01 | 20162600 | 3.31 ppb |
| 2016-11-02 | 20162594 | 2.73 ppb |
| 2016-11-02 | 20162596 | 1.99 ppb |
| 2016-11-02 | 20162597 | 2.21 ppb |
| 2016-11-02 | 20162599 | 2.55 ppb |
| 2017-02-06 | 20170119 | 2.02 ppb |
| 2017-02-06 | 20170120 | 2.27 ppb |
| 2017-02-06 | 20170121 | 2.05 ppb |
| 2017-02-06 | 20170122 | 1.96 ppb |
| 2017-02-06 | 20170123 | 1.81 ppb |
| 2017-02-06 | 20170124 | 1.84 ppb |
| 2017-02-06 | 20170125 | 2.11 ppb |
| 2017-02-06 | 20170126 | 2.18 ppb |
| 2017-05-02 | 20170295 | 0.710 ppb |
| 2017-05-02 | 20170297 | 0.800 ppb |
| 2017-05-02 | 20170300 | 0.660 ppb |
| 2017-05-02 | 20170302 | 0.660 ppb |
| 2017-05-03 | 20170296 | 0.690 ppb |
| 2017-05-03 | 20170298 | 0.540 ppb |
| 2017-05-03 | 20170299 | 0.530 ppb |
| 2017-05-03 | 20170301 | 0.630 ppb |
| 2017-08-03 | 20170629 | ND |
| 2017-08-03 | 20170630 | ND |
| 2017-08-03 | 20170631 | ND |
| 2017-08-03 | 20170632 | ND |
| 2017-08-03 | 20170633 | ND |
| 2017-08-03 | 20170634 | ND |
| 2017-08-03 | 20170635 | ND |
| 2017-08-03 | 20170636 | ND |
| 2017-11-02 | 20170977 | ND |
| 2017-11-02 | 20170979 | ND |
| 2017-11-02 | 20170982 | ND |
| 2017-11-02 | 20170984 | ND |
| 2017-11-03 | 20170978 | ND |
| 2017-11-03 | 20170980 | ND |
| 2017-11-03 | 20170981 | ND |
| 2017-11-03 | 20170983 | ND |
| 2018-02-01 | 20180091 | 1.31 ppb |
| 2018-02-01 | 20180093 | 1.46 ppb |
| 2018-02-01 | 20180095 | 1.47 ppb |
| 2018-02-01 | 20180096 | 1.26 ppb |
| 2018-02-01 | 20180098 | 1.45 ppb |
| 2018-02-04 | 20180092 | 1.38 ppb |
| 2018-02-04 | 20180094 | 1.21 ppb |
| 2018-02-04 | 20180097 | 1.58 ppb |
| 2018-05-01 | 20180297 | ND |
| 2018-05-01 | 20180299 | ND |
| 2018-05-01 | 20180304 | ND |
| 2018-05-02 | 20180301 | ND |
| 2018-05-02 | 20180302 | ND |
| 2018-05-02 | 20180303 | ND |
| 2018-05-04 | 20180298 | ND |
| 2018-05-04 | 20180300 | ND |
| 2018-08-01 | 20180797 | ND |
| 2018-08-01 | 20180804 | ND |
| 2018-08-02 | 20180799 | ND |
| 2018-08-02 | 20180802 | ND |
| 2018-08-03 | 20180798 | ND |
| 2018-08-03 | 20180803 | ND |
| 2018-08-06 | 20180800 | ND |
| 2018-08-06 | 20180801 | ND |
| 2018-11-02 | 20181171 | 1.59 ppb |
| 2018-11-02 | 20181178 | 1.24 ppb |
| 2018-11-05 | 20181173 | 1.44 ppb |
| 2018-11-05 | 20181176 | 1.28 ppb |
| 2018-11-06 | 20181175 | 1.14 ppb |
| 2018-11-06 | 20181177 | 1.42 ppb |
| 2018-11-07 | 20181172 | 1.26 ppb |
| 2018-11-07 | 20181174 | 1.23 ppb |
| 2019-02-04 | 20190104 | ND |
| 2019-02-04 | 20190111 | ND |
| 2019-02-05 | 20190106 | ND |
| 2019-02-05 | 20190109 | ND |
| 2019-02-06 | 20190108 | ND |
| 2019-02-06 | 20190110 | ND |
| 2019-02-07 | 20190105 | ND |
| 2019-02-07 | 20190107 | ND |
| 2019-05-01 | 20190290 | ND |
| 2019-05-01 | 20190297 | ND |
| 2019-05-02 | 20190292 | ND |
| 2019-05-02 | 20190295 | ND |
| 2019-05-03 | 20190294 | ND |
| 2019-05-03 | 20190296 | ND |
| 2019-05-06 | 20190291 | ND |
| 2019-05-06 | 20190293 | ND |
| 2019-08-05 | 20190694 | ND |
| 2019-08-05 | 20190696 | 0.520 ppb |
| 2019-08-05 | 20190701 | ND |
| 2019-08-06 | 20190698 | ND |
| 2019-08-06 | 20190699 | 0.720 ppb |
| 2019-08-06 | 20190700 | 0.680 ppb |
| 2019-08-07 | 20190695 | 0.660 ppb |
| 2019-08-07 | 20190697 | ND |