Dibromochloromethane
Pompton Lakes Mua
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.
Samples
Samples exceeding legal limit (MCL)
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 | 0.814 ppb | 16 | 7 | ND - 3.28 ppb |
| 2015 | 0.853 ppb | 17 | 11 | ND - 3.28 ppb |
| 2016 | 0.840 ppb | 17 | 12 | ND - 2.85 ppb |
| 2017 | 0.802 ppb | 17 | 10 | ND - 2.82 ppb |
| 2018 | 1.31 ppb | 17 | 10 | ND - 4.16 ppb |
| 2019 | 0.966 ppb | 17 | 15 | ND - 4.12 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 | 1070897002 | ND |
| 2014-02-04 | 1070897001 | ND |
| 2014-02-04 | 1070897004 | ND |
| 2014-02-04 | 1070897003 | ND |
| 2014-05-20 | 2008151003 | ND |
| 2014-05-20 | 2008151004 | ND |
| 2014-05-20 | 2008151001 | ND |
| 2014-05-20 | 2008151002 | ND |
| 2014-08-05 | 4080159-02 | 1.20 ppb |
| 2014-08-05 | 4080159-03 | 0.650 ppb |
| 2014-08-05 | 4080159-04 | 0.890 ppb |
| 2014-08-05 | 4080159-01 | 0.740 ppb |
| 2014-11-04 | 4110130-01 | 3.23 ppb |
| 2014-11-04 | 4110130-03 | 3.04 ppb |
| 2014-11-04 | 4110130-02 | 3.28 ppb |
| 2014-11-04 | 4110130-04 | ND |
| 2015-02-03 | 5020065-01 | 1.61 ppb |
| 2015-02-03 | 5020065-02 | ND |
| 2015-02-03 | 5020065-03 | 1.39 ppb |
| 2015-02-03 | 5020065-04 | 0.306 ppb |
| 2015-04-08 | 5040203-02 | 1.71 ppb |
| 2015-05-05 | 5050170-04 | 3.28 ppb |
| 2015-05-05 | 5050170-03 | ND |
| 2015-05-05 | 5050170-02 | 0.501 ppb |
| 2015-05-05 | 5050170-01 | 0.280 ppb |
| 2015-08-04 | 5080114-04 | 1.06 ppb |
| 2015-08-04 | 5080114-03 | ND |
| 2015-08-04 | 5080114-02 | 1.28 ppb |
| 2015-08-04 | 5080114-01 | ND |
| 2015-11-03 | 5110098-04 | 2.25 ppb |
| 2015-11-03 | 5110098-03 | ND |
| 2015-11-03 | 5110098-02 | 0.830 ppb |
| 2015-11-03 | 5110098-01 | ND |
| 2016-02-02 | 6020103-04 | 2.85 ppb |
| 2016-02-02 | 6020103-03 | ND |
| 2016-02-02 | 6020103-02 | 0.350 ppb |
| 2016-02-02 | 6020103-01 | ND |
| 2016-04-05 | 6040175-02 | 0.280 ppb |
| 2016-05-03 | 6050132-04 | 2.63 ppb |
| 2016-05-03 | 6050132-03 | 0.517 ppb |
| 2016-05-03 | 6050132-02 | 1.000 ppb |
| 2016-05-03 | 6050132-01 | 0.563 ppb |
| 2016-08-02 | 6080120-04 | 2.69 ppb |
| 2016-08-02 | 6080120-03 | ND |
| 2016-08-02 | 6080120-02 | 1.86 ppb |
| 2016-08-02 | 6080120-01 | 0.498 ppb |
| 2016-11-01 | 6110078-04 | 0.495 ppb |
| 2016-11-01 | 6110078-03 | ND |
| 2016-11-01 | 6110078-02 | 0.545 ppb |
| 2016-11-01 | 6110078-01 | ND |
| 2017-02-07 | 7020247-04 | 1.29 ppb |
| 2017-02-07 | 7020247-03 | ND |
| 2017-02-07 | 7020247-02 | 1.22 ppb |
| 2017-02-07 | 7020247-01 | 0.528 ppb |
| 2017-04-11 | 7040339-02 | 0.359 ppb |
| 2017-05-02 | 7050134-04 | 1.15 ppb |
| 2017-05-02 | 7050134-03 | ND |
| 2017-05-02 | 7050134-02 | 1.39 ppb |
| 2017-05-02 | 7050134-01 | ND |
| 2017-08-01 | 7080098-04 | 2.05 ppb |
| 2017-08-01 | 7080098-03 | ND |
| 2017-08-01 | 7080098-02 | ND |
| 2017-08-01 | 7080098-01 | ND |
| 2017-11-07 | 7110301-04 | 2.82 ppb |
| 2017-11-07 | 7110301-03 | ND |
| 2017-11-07 | 7110301-02 | 2.29 ppb |
| 2017-11-07 | 7110301-01 | 0.531 ppb |
| 2018-02-06 | 8020165-04 | 2.06 ppb |
| 2018-02-06 | 8020165-03 | 0.400 ppb |
| 2018-02-06 | 8020165-02 | 1.78 ppb |
| 2018-02-06 | 8020165-01 | ND |
| 2018-04-04 | 8040152-01 | 2.51 ppb |
| 2018-05-01 | 8050094-04 | 2.55 ppb |
| 2018-05-01 | 8050094-03 | ND |
| 2018-05-01 | 8050094-02 | 1.83 ppb |
| 2018-05-01 | 8050094-01 | ND |
| 2018-08-07 | 8080339-04 | 4.16 ppb |
| 2018-08-07 | 8080339-03 | ND |
| 2018-08-07 | 8080339-02 | ND |
| 2018-08-07 | 8080339-01 | ND |
| 2018-11-06 | 8110257-04 | 3.18 ppb |
| 2018-11-06 | 8110257-03 | 0.903 ppb |
| 2018-11-06 | 8110257-02 | 2.94 ppb |
| 2018-11-06 | 8110257-01 | ND |
| 2019-02-05 | 9020182-04 | 1.64 ppb |
| 2019-02-05 | 9020182-03 | 0.449 ppb |
| 2019-02-05 | 9020182-02 | ND |
| 2019-02-05 | 9020182-01 | 0.719 ppb |
| 2019-04-03 | 9040179-01 | 0.681 ppb |
| 2019-05-07 | 9050362-04 | 4.12 ppb |
| 2019-05-07 | 9050362-03 | 0.630 ppb |
| 2019-05-07 | 9050362-02 | 0.702 ppb |
| 2019-05-07 | 9050362-01 | 0.462 ppb |
| 2019-08-06 | 9080300-04 | 2.03 ppb |
| 2019-08-06 | 9080300-03 | 0.491 ppb |
| 2019-08-06 | 9080300-02 | 0.698 ppb |
| 2019-08-06 | 9080300-01 | ND |
| 2019-11-05 | 9110248-04 | 2.57 ppb |
| 2019-11-05 | 9110248-03 | 0.390 ppb |
| 2019-11-05 | 9110248-02 | 0.507 ppb |
| 2019-11-05 | 9110248-01 | 0.340 ppb |