Dibromochloromethane
New Orleans Carrollton Waterworks
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 |
|---|---|---|---|---|
| 2018 | 0.346 ppb | 98 | 30 | ND - 2.10 ppb |
| 2019 | 0.432 ppb | 96 | 56 | ND - 1.10 ppb |
| 2020 | 0.677 ppb | 48 | 26 | ND - 1.50 ppb |
| 2021 | 1.10 ppb | 48 | 45 | ND - 2.10 ppb |
| 2022 | 1.23 ppb | 50 | 26 | ND - 3.10 ppb |
| 2023 | 1.88 ppb | 48 | 41 | ND - 4.40 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-24 | 35370494001 | 1.20 ppb |
| 2018-01-24 | 35370494002 | 2.00 ppb |
| 2018-01-24 | 35370494003 | 2.10 ppb |
| 2018-01-24 | 35370494004 | 0.940 ppb |
| 2018-01-24 | 35370494005 | 0.940 ppb |
| 2018-01-24 | 35370494006 | 0.820 ppb |
| 2018-01-24 | 35370494001 | 1.20 ppb |
| 2018-01-24 | 35370494002 | 2.00 ppb |
| 2018-01-24 | 35370494003 | 2.10 ppb |
| 2018-01-24 | 35370494004 | 0.940 ppb |
| 2018-01-24 | 35370494005 | 0.940 ppb |
| 2018-01-24 | 35370494006 | 0.820 ppb |
| 2018-01-29 | 35371045001 | 0.970 ppb |
| 2018-01-29 | 35371045002 | 0.810 ppb |
| 2018-01-29 | 35371045003 | 0.850 ppb |
| 2018-01-29 | 35371045004 | 0.850 ppb |
| 2018-01-29 | 35371045005 | 0.830 ppb |
| 2018-01-29 | 35371045006 | 0.860 ppb |
| 2018-01-29 | 35371045001 | 0.970 ppb |
| 2018-01-29 | 35371045002 | 0.810 ppb |
| 2018-01-29 | 35371045003 | 0.850 ppb |
| 2018-01-29 | 35371045004 | 0.850 ppb |
| 2018-01-29 | 35371045005 | 0.830 ppb |
| 2018-01-29 | 35371045006 | 0.860 ppb |
| 2018-04-16 | 35387639001 | ND |
| 2018-04-16 | 35387639001 | ND |
| 2018-04-17 | 35387640001 | ND |
| 2018-04-17 | 35387640002 | ND |
| 2018-04-17 | 35387640005 | ND |
| 2018-04-17 | 35387640007 | ND |
| 2018-04-17 | 35387640001 | ND |
| 2018-04-17 | 35387640002 | ND |
| 2018-04-17 | 35387640005 | ND |
| 2018-04-17 | 35387640007 | ND |
| 2018-04-18 | 35387641001 | ND |
| 2018-04-18 | 35387641001 | ND |
| 2018-04-19 | 35387640003 | ND |
| 2018-04-19 | 35387640004 | ND |
| 2018-04-19 | 35387640006 | ND |
| 2018-04-19 | 35387640008 | ND |
| 2018-04-19 | 35387640009 | ND |
| 2018-04-19 | 35387641002 | ND |
| 2018-04-19 | 35387640003 | ND |
| 2018-04-19 | 35387640004 | ND |
| 2018-04-19 | 35387640006 | ND |
| 2018-04-19 | 35387640008 | ND |
| 2018-04-19 | 35387640009 | ND |
| 2018-04-19 | 35387641002 | ND |
| 2018-07-25 | 35407109001 | ND |
| 2018-07-25 | 35407109003 | ND |
| 2018-07-25 | 35407109010 | ND |
| 2018-07-25 | 35407109001 | ND |
| 2018-07-25 | 35407109003 | ND |
| 2018-07-25 | 35407109010 | ND |
| 2018-07-26 | 35407109002 | ND |
| 2018-07-26 | 35407109006 | ND |
| 2018-07-26 | 35407109008 | ND |
| 2018-07-26 | 35407109009 | ND |
| 2018-07-26 | 35407109002 | ND |
| 2018-07-26 | 35407109006 | ND |
| 2018-07-26 | 35407109008 | ND |
| 2018-07-26 | 35407109009 | ND |
| 2018-07-31 | 35407844001 | 1.30 ppb |
| 2018-07-31 | 35407844002 | 1.30 ppb |
| 2018-07-31 | 35407844003 | 1.20 ppb |
| 2018-07-31 | 35407844004 | ND |
| 2018-07-31 | 35407844005 | ND |
| 2018-07-31 | 35407844006 | ND |
| 2018-07-31 | 35407844001 | 1.30 ppb |
| 2018-07-31 | 35407844002 | 1.30 ppb |
| 2018-07-31 | 35407844003 | 1.20 ppb |
| 2018-07-31 | 35407844004 | ND |
| 2018-07-31 | 35407844005 | ND |
| 2018-07-31 | 35407844006 | ND |
| 2018-10-16 | 35425096001 | ND |
| 2018-10-16 | 35425096002 | ND |
| 2018-10-16 | 35425096003 | ND |
| 2018-10-16 | 35425096011 | ND |
| 2018-10-16 | 35425096012 | ND |
| 2018-10-16 | 35425096001 | ND |
| 2018-10-16 | 35425096002 | ND |
| 2018-10-16 | 35425096003 | ND |
| 2018-10-16 | 35425096011 | ND |
| 2018-10-16 | 35425096012 | ND |
| 2018-10-17 | 35425096004 | ND |
| 2018-10-17 | 35425096005 | ND |
| 2018-10-17 | 35425096006 | ND |
| 2018-10-17 | 35425096007 | ND |
| 2018-10-17 | 35425096008 | ND |
| 2018-10-17 | 35425096009 | ND |
| 2018-10-17 | 35425096010 | ND |
| 2018-10-17 | 35425096004 | ND |
| 2018-10-17 | 35425096005 | ND |
| 2018-10-17 | 35425096006 | ND |
| 2018-10-17 | 35425096007 | ND |
| 2018-10-17 | 35425096008 | ND |
| 2018-10-17 | 35425096009 | ND |
| 2018-10-17 | 35425096010 | ND |
| 2019-01-16 | 35442883001 | 0.560 ppb |
| 2019-01-16 | 35442883002 | 0.480 ppb |
| 2019-01-16 | 35442883003 | 0.470 ppb |
| 2019-01-16 | 35442883004 | 0.520 ppb |
| 2019-01-16 | 35442883005 | 0.460 ppb |
| 2019-01-16 | 35442891001 | ND |
| 2019-01-16 | 35442883001 | 0.560 ppb |
| 2019-01-16 | 35442883002 | 0.480 ppb |
| 2019-01-16 | 35442883003 | 0.470 ppb |
| 2019-01-16 | 35442883004 | 0.520 ppb |
| 2019-01-16 | 35442883005 | 0.460 ppb |
| 2019-01-16 | 35442891001 | ND |
| 2019-01-17 | 35443169001 | ND |
| 2019-01-17 | 35443169002 | ND |
| 2019-01-17 | 35443169003 | ND |
| 2019-01-17 | 35443169004 | ND |
| 2019-01-17 | 35443169005 | ND |
| 2019-01-17 | 35443169006 | ND |
| 2019-01-17 | 35443169001 | ND |
| 2019-01-17 | 35443169002 | ND |
| 2019-01-17 | 35443169003 | ND |
| 2019-01-17 | 35443169004 | ND |
| 2019-01-17 | 35443169005 | ND |
| 2019-01-17 | 35443169006 | ND |
| 2019-04-24 | 35464347001 | 0.560 ppb |
| 2019-04-24 | 35464347002 | 0.430 ppb |
| 2019-04-24 | 35464347003 | 0.450 ppb |
| 2019-04-24 | 35464347004 | 0.470 ppb |
| 2019-04-24 | 35464347005 | 0.470 ppb |
| 2019-04-24 | 35464347006 | 0.540 ppb |
| 2019-04-24 | 35464347007 | 0.480 ppb |
| 2019-04-24 | 35464347008 | 0.460 ppb |
| 2019-04-24 | 35464347009 | 0.510 ppb |
| 2019-04-24 | 35464347010 | ND |
| 2019-04-24 | 35464347011 | 0.440 ppb |
| 2019-04-24 | 35464347012 | 0.540 ppb |
| 2019-04-24 | 35464347001 | 0.560 ppb |
| 2019-04-24 | 35464347002 | 0.430 ppb |
| 2019-04-24 | 35464347003 | 0.450 ppb |
| 2019-04-24 | 35464347004 | 0.470 ppb |
| 2019-04-24 | 35464347005 | 0.470 ppb |
| 2019-04-24 | 35464347006 | 0.540 ppb |
| 2019-04-24 | 35464347007 | 0.480 ppb |
| 2019-04-24 | 35464347008 | 0.460 ppb |
| 2019-04-24 | 35464347009 | 0.510 ppb |
| 2019-04-24 | 35464347010 | ND |
| 2019-04-24 | 35464347011 | 0.440 ppb |
| 2019-04-24 | 35464347012 | 0.540 ppb |
| 2019-07-18 | 35483776001 | ND |
| 2019-07-18 | 35483776002 | ND |
| 2019-07-18 | 35483776003 | ND |
| 2019-07-18 | 35483776004 | ND |
| 2019-07-18 | 35483776005 | ND |
| 2019-07-18 | 35483776006 | ND |
| 2019-07-18 | 35483776007 | ND |
| 2019-07-18 | 35483776008 | ND |
| 2019-07-18 | 35483776009 | ND |
| 2019-07-18 | 35483776010 | ND |
| 2019-07-18 | 35483776011 | ND |
| 2019-07-18 | 35483776012 | ND |
| 2019-07-18 | 35483776001 | ND |
| 2019-07-18 | 35483776002 | ND |
| 2019-07-18 | 35483776003 | ND |
| 2019-07-18 | 35483776004 | ND |
| 2019-07-18 | 35483776005 | ND |
| 2019-07-18 | 35483776006 | ND |
| 2019-07-18 | 35483776007 | ND |
| 2019-07-18 | 35483776008 | ND |
| 2019-07-18 | 35483776009 | ND |
| 2019-07-18 | 35483776010 | ND |
| 2019-07-18 | 35483776011 | ND |
| 2019-07-18 | 35483776012 | ND |
| 2019-10-16 | 35505764001 | 1.000 ppb |
| 2019-10-16 | 35505764002 | 1.10 ppb |
| 2019-10-16 | 35505764003 | 1.000 ppb |
| 2019-10-16 | 35505764004 | 1.10 ppb |
| 2019-10-16 | 35505764005 | 1.10 ppb |
| 2019-10-16 | 35505764006 | 1.10 ppb |
| 2019-10-16 | 35505764007 | 1.10 ppb |
| 2019-10-16 | 35505764008 | 1.000 ppb |
| 2019-10-16 | 35505764009 | 1.10 ppb |
| 2019-10-16 | 35505764010 | 1.10 ppb |
| 2019-10-16 | 35505764011 | 1.10 ppb |
| 2019-10-16 | 35505764012 | 1.10 ppb |
| 2019-10-16 | 35505764001 | 1.000 ppb |
| 2019-10-16 | 35505764002 | 1.10 ppb |
| 2019-10-16 | 35505764003 | 1.000 ppb |
| 2019-10-16 | 35505764004 | 1.10 ppb |
| 2019-10-16 | 35505764005 | 1.10 ppb |
| 2019-10-16 | 35505764006 | 1.10 ppb |
| 2019-10-16 | 35505764007 | 1.10 ppb |
| 2019-10-16 | 35505764008 | 1.000 ppb |
| 2019-10-16 | 35505764009 | 1.10 ppb |
| 2019-10-16 | 35505764010 | 1.10 ppb |
| 2019-10-16 | 35505764011 | 1.10 ppb |
| 2019-10-16 | 35505764012 | 1.10 ppb |
| 2020-01-24 | 35526475001 | ND |
| 2020-01-24 | 35526475002 | ND |
| 2020-01-24 | 35526475003 | ND |
| 2020-01-24 | 35526475004 | ND |
| 2020-01-24 | 35526475005 | ND |
| 2020-01-24 | 35526475006 | ND |
| 2020-01-24 | 35526475007 | ND |
| 2020-01-24 | 35526475008 | ND |
| 2020-01-24 | 35526475009 | ND |
| 2020-01-24 | 35526475010 | ND |
| 2020-01-24 | 35526475011 | ND |
| 2020-01-24 | 35526475012 | ND |
| 2020-04-16 | 35544546001 | ND |
| 2020-04-16 | 35544546002 | ND |
| 2020-04-16 | 35544546003 | 0.460 ppb |
| 2020-04-16 | 35544546004 | ND |
| 2020-04-16 | 35544546005 | ND |
| 2020-04-16 | 35544546006 | 0.460 ppb |
| 2020-04-16 | 35544546007 | ND |
| 2020-04-16 | 35544546008 | ND |
| 2020-04-16 | 35544550001 | ND |
| 2020-04-16 | 35544550002 | ND |
| 2020-04-16 | 35544550003 | ND |
| 2020-04-16 | 35544550004 | 0.490 ppb |
| 2020-07-28 | 35566807001 | ND |
| 2020-07-28 | 35566807002 | 1.40 ppb |
| 2020-07-28 | 35566807003 | 1.40 ppb |
| 2020-07-28 | 35566807004 | 1.30 ppb |
| 2020-07-28 | 35566807005 | 1.50 ppb |
| 2020-07-28 | 35566807006 | 1.50 ppb |
| 2020-07-28 | 35566807007 | 1.40 ppb |
| 2020-07-28 | 35566807008 | 1.50 ppb |
| 2020-07-28 | 35566807009 | 1.40 ppb |
| 2020-07-28 | 35566807010 | 1.10 ppb |
| 2020-07-28 | 35566807011 | 1.20 ppb |
| 2020-07-28 | 35566807012 | 1.20 ppb |
| 2020-10-30 | 35589160001 | 1.40 ppb |
| 2020-10-30 | 35589160002 | 1.30 ppb |
| 2020-10-30 | 35589160003 | 1.20 ppb |
| 2020-10-30 | 35589160004 | 1.30 ppb |
| 2020-10-30 | 35589160005 | 1.50 ppb |
| 2020-10-30 | 35589160006 | 1.20 ppb |
| 2020-10-30 | 35589160007 | 1.40 ppb |
| 2020-10-30 | 35589160008 | 1.30 ppb |
| 2020-10-30 | 35589160009 | 1.40 ppb |
| 2020-10-30 | 35589160010 | 1.30 ppb |
| 2020-10-30 | 35589160011 | 1.40 ppb |
| 2020-10-30 | 35589160012 | 1.50 ppb |
| 2021-01-27 | 35608088001 | 0.990 ppb |
| 2021-01-27 | 35608088002 | 1.30 ppb |
| 2021-01-27 | 35608088003 | 1.000 ppb |
| 2021-01-27 | 35608088004 | 1.20 ppb |
| 2021-01-27 | 35608088005 | 1.10 ppb |
| 2021-01-27 | 35608088006 | 1.20 ppb |
| 2021-01-27 | 35608088007 | 1.10 ppb |
| 2021-01-27 | 35608088008 | 1.30 ppb |
| 2021-01-27 | 35608088009 | 1.10 ppb |
| 2021-01-27 | 35608088010 | 0.950 ppb |
| 2021-01-27 | 35608088011 | 1.30 ppb |
| 2021-01-27 | 35608088012 | 1.000 ppb |
| 2021-04-29 | 35629923001 | 0.660 ppb |
| 2021-04-29 | 35629923002 | 0.550 ppb |
| 2021-04-29 | 35629923003 | 0.620 ppb |
| 2021-04-29 | 35629923004 | 0.670 ppb |
| 2021-04-29 | 35629923005 | 0.540 ppb |
| 2021-04-29 | 35629923006 | 0.530 ppb |
| 2021-04-29 | 35629923007 | 0.560 ppb |
| 2021-04-29 | 35629923008 | 0.490 ppb |
| 2021-04-29 | 35629923009 | 0.540 ppb |
| 2021-04-29 | 35629923010 | ND |
| 2021-04-29 | 35629923011 | ND |
| 2021-04-29 | 35629923012 | 0.480 ppb |
| 2021-07-28 | 35651738001 | 0.770 ppb |
| 2021-07-28 | 35651738002 | 1.10 ppb |
| 2021-07-28 | 35651738003 | 1.20 ppb |
| 2021-07-28 | 35651738004 | 0.900 ppb |
| 2021-07-28 | 35651738006 | 0.660 ppb |
| 2021-07-28 | 35651738007 | 1.10 ppb |
| 2021-07-28 | 35651738008 | 0.920 ppb |
| 2021-07-28 | 35651738009 | 1.20 ppb |
| 2021-07-28 | 35651738011 | 0.950 ppb |
| 2021-07-28 | 35651738012 | 0.890 ppb |
| 2021-08-10 | 35654662001 | 1.40 ppb |
| 2021-09-16 | 35664174001 | ND |
| 2021-10-21 | 35673714001 | 1.70 ppb |
| 2021-10-21 | 35673714002 | 2.00 ppb |
| 2021-10-21 | 35673714003 | 2.00 ppb |
| 2021-10-21 | 35673714004 | 1.90 ppb |
| 2021-10-21 | 35673714005 | 2.10 ppb |
| 2021-10-21 | 35673714006 | 2.00 ppb |
| 2021-10-21 | 35673714007 | 2.10 ppb |
| 2021-10-21 | 35673714008 | 1.50 ppb |
| 2021-10-21 | 35673714009 | 1.90 ppb |
| 2021-10-21 | 35673714010 | 1.60 ppb |
| 2021-10-21 | 35673714011 | 1.90 ppb |
| 2021-10-21 | 35673714012 | 1.70 ppb |
| 2022-01-28 | 35693774001 | ND |
| 2022-01-28 | 35693774002 | ND |
| 2022-01-28 | 35693774003 | ND |
| 2022-01-28 | 35693774004 | ND |
| 2022-01-28 | 35693774005 | ND |
| 2022-01-28 | 35693774006 | ND |
| 2022-01-28 | 35693774007 | ND |
| 2022-01-28 | 35693774008 | ND |
| 2022-01-28 | 35693774009 | ND |
| 2022-01-28 | 35693774010 | ND |
| 2022-01-28 | 35693774011 | ND |
| 2022-01-28 | 35693774012 | ND |
| 2022-04-13 | 35711512001 | ND |
| 2022-04-13 | 35711512002 | ND |
| 2022-04-13 | 35711512003 | ND |
| 2022-04-13 | 35711512004 | ND |
| 2022-04-13 | 35711512005 | ND |
| 2022-04-13 | 35711512006 | ND |
| 2022-04-13 | 35711512007 | ND |
| 2022-04-13 | 35711512008 | ND |
| 2022-04-13 | 35711512009 | ND |
| 2022-04-13 | 35711512010 | ND |
| 2022-04-13 | 35711514001 | ND |
| 2022-04-13 | 35711514002 | ND |
| 2022-07-26 | 35734960 004 | 2.00 ppb |
| 2022-07-26 | 35734960001 | 1.70 ppb |
| 2022-07-26 | 35734960002 | 2.20 ppb |
| 2022-07-26 | 35734960003 | 2.50 ppb |
| 2022-07-26 | 35734960004 | 2.00 ppb |
| 2022-07-26 | 35734960005 | 2.50 ppb |
| 2022-07-26 | 35734960006 | 2.20 ppb |
| 2022-07-26 | 35734960007 | 2.40 ppb |
| 2022-07-26 | 35734960008 | 1.70 ppb |
| 2022-07-26 | 35734960009 | 2.50 ppb |
| 2022-07-26 | 35734960010 | 1.60 ppb |
| 2022-07-26 | 35734960011 | 1.90 ppb |
| 2022-07-26 | 35734960012 | 2.20 ppb |
| 2022-08-23 | 35741997001 | 1.60 ppb |
| 2022-10-21 | 35755548001 | 2.40 ppb |
| 2022-10-21 | 35755548002 | 3.00 ppb |
| 2022-10-21 | 35755548003 | 3.10 ppb |
| 2022-10-21 | 35755548004 | 3.00 ppb |
| 2022-10-21 | 35755548005 | 2.80 ppb |
| 2022-10-21 | 35755548006 | 2.60 ppb |
| 2022-10-21 | 35755548007 | 2.80 ppb |
| 2022-10-21 | 35755548008 | 2.40 ppb |
| 2022-10-21 | 35755548009 | 2.80 ppb |
| 2022-10-21 | 35755548010 | 2.50 ppb |
| 2022-10-21 | 35755548011 | 2.70 ppb |
| 2022-10-21 | 35755548012 | 2.50 ppb |
| 2023-01-12 | 35772597001 | 0.920 ppb |
| 2023-01-12 | 35772597002 | 1.10 ppb |
| 2023-01-12 | 35772597003 | 0.930 ppb |
| 2023-01-12 | 35772597004 | 1.000 ppb |
| 2023-01-12 | 35772597005 | 1.000 ppb |
| 2023-01-12 | 35772597006 | 1.000 ppb |
| 2023-01-12 | 35772597007 | 0.790 ppb |
| 2023-01-12 | 35772597008 | 1.000 ppb |
| 2023-01-12 | 35772597009 | 1.20 ppb |
| 2023-01-12 | 35772597010 | 1.20 ppb |
| 2023-01-12 | 35772597011 | 1.000 ppb |
| 2023-01-12 | 35772597012 | 0.910 ppb |
| 2023-04-14 | 35793299001 | ND |
| 2023-04-14 | 35793299002 | 0.490 ppb |
| 2023-04-14 | 35793299003 | 0.480 ppb |
| 2023-04-14 | 35793299005 | ND |
| 2023-04-14 | 35793299006 | 0.490 ppb |
| 2023-04-14 | 35793299007 | 0.490 ppb |
| 2023-04-14 | 35793299008 | 0.510 ppb |
| 2023-04-14 | 35793299009 | ND |
| 2023-04-14 | 35793299010 | ND |
| 2023-04-14 | 35793303001 | ND |
| 2023-04-14 | 35793303002 | ND |
| 2023-04-26 | 35795578001 | 0.660 ppb |
| 2023-07-20 | 35814840001 | 2.50 ppb |
| 2023-07-20 | 35814840002 | 3.20 ppb |
| 2023-07-20 | 35814840003 | 3.20 ppb |
| 2023-07-20 | 35814840004 | 3.50 ppb |
| 2023-07-20 | 35814840005 | 3.20 ppb |
| 2023-07-20 | 35814840006 | 3.20 ppb |
| 2023-07-20 | 35814840007 | 3.40 ppb |
| 2023-07-20 | 35814840008 | 4.40 ppb |
| 2023-07-20 | 35814840009 | 2.80 ppb |
| 2023-07-20 | 35814840010 | 2.50 ppb |
| 2023-07-20 | 35814840011 | 2.30 ppb |
| 2023-07-20 | 35814840012 | 2.80 ppb |
| 2023-10-19 | 35836047001 | 3.50 ppb |
| 2023-10-19 | 35836047002 | 3.80 ppb |
| 2023-10-19 | 35836047003 | 4.20 ppb |
| 2023-10-19 | 35836047004 | 4.10 ppb |
| 2023-10-19 | 35836047005 | 4.30 ppb |
| 2023-10-19 | 35836047006 | 4.00 ppb |
| 2023-10-19 | 35836047007 | 4.20 ppb |
| 2023-10-19 | 35836047008 | 1.70 ppb |
| 2023-10-19 | 35836047009 | ND |
| 2023-10-19 | 35836047010 | 3.20 ppb |
| 2023-10-19 | 35836047011 | 1.90 ppb |
| 2023-10-19 | 35836047012 | 3.40 ppb |