Bromodichloromethane
City of Bogalusa Water System
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.
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 | 0.648 ppb | 32 | 22 | ND - 1.30 ppb |
| 2019 | 0.604 ppb | 32 | 18 | ND - 1.70 ppb |
| 2020 | 0.371 ppb | 16 | 7 | ND - 1.30 ppb |
| 2021 | 0.809 ppb | 16 | 16 | 0.450 ppb - 1.20 ppb |
| 2022 | 0.929 ppb | 16 | 14 | ND - 1.60 ppb |
| 2023 | 1.03 ppb | 16 | 16 | 0.410 ppb - 2.90 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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 |
|---|---|---|
| 2018-01-12 | 35368407001 | 0.880 ppb |
| 2018-01-12 | 35368407002 | 0.600 ppb |
| 2018-01-12 | 35368407003 | 0.390 ppb |
| 2018-01-12 | 35368407004 | 0.650 ppb |
| 2018-01-12 | 35368407001 | 0.880 ppb |
| 2018-01-12 | 35368407002 | 0.600 ppb |
| 2018-01-12 | 35368407003 | 0.390 ppb |
| 2018-01-12 | 35368407004 | 0.650 ppb |
| 2018-04-05 | 35384630001 | 0.910 ppb |
| 2018-04-05 | 35384630002 | ND |
| 2018-04-05 | 35384630003 | 0.840 ppb |
| 2018-04-05 | 35384630004 | 1.30 ppb |
| 2018-04-05 | 35384630001 | 0.910 ppb |
| 2018-04-05 | 35384630002 | ND |
| 2018-04-05 | 35384630003 | 0.840 ppb |
| 2018-04-05 | 35384630004 | 1.30 ppb |
| 2018-07-05 | 35402539001 | 1.20 ppb |
| 2018-07-05 | 35402539002 | 1.20 ppb |
| 2018-07-05 | 35402539003 | 1.30 ppb |
| 2018-07-05 | 35402539004 | 1.10 ppb |
| 2018-07-05 | 35402539001 | 1.20 ppb |
| 2018-07-05 | 35402539002 | 1.20 ppb |
| 2018-07-05 | 35402539003 | 1.30 ppb |
| 2018-07-05 | 35402539004 | 1.10 ppb |
| 2018-10-04 | 35422549001 | ND |
| 2018-10-04 | 35422549002 | ND |
| 2018-10-04 | 35422549003 | ND |
| 2018-10-04 | 35422549004 | ND |
| 2018-10-04 | 35422549001 | ND |
| 2018-10-04 | 35422549002 | ND |
| 2018-10-04 | 35422549003 | ND |
| 2018-10-04 | 35422549004 | ND |
| 2019-01-11 | 35441865001 | 0.770 ppb |
| 2019-01-11 | 35441865002 | ND |
| 2019-01-11 | 35441865003 | 0.700 ppb |
| 2019-01-11 | 35441865004 | 0.740 ppb |
| 2019-01-11 | 35441865001 | 0.770 ppb |
| 2019-01-11 | 35441865002 | ND |
| 2019-01-11 | 35441865003 | 0.700 ppb |
| 2019-01-11 | 35441865004 | 0.740 ppb |
| 2019-04-05 | 35459959001 | ND |
| 2019-04-05 | 35459959002 | ND |
| 2019-04-05 | 35459959003 | ND |
| 2019-04-05 | 35459959004 | ND |
| 2019-04-05 | 35459959001 | ND |
| 2019-04-05 | 35459959002 | ND |
| 2019-04-05 | 35459959003 | ND |
| 2019-04-05 | 35459959004 | ND |
| 2019-07-19 | 35483671001 | 1.30 ppb |
| 2019-07-19 | 35483671002 | ND |
| 2019-07-19 | 35483671003 | 0.970 ppb |
| 2019-07-19 | 35483671004 | 1.20 ppb |
| 2019-07-19 | 35483671001 | 1.30 ppb |
| 2019-07-19 | 35483671002 | ND |
| 2019-07-19 | 35483671003 | 0.970 ppb |
| 2019-07-19 | 35483671004 | 1.20 ppb |
| 2019-10-04 | 35502858001 | 1.70 ppb |
| 2019-10-04 | 35502858002 | ND |
| 2019-10-04 | 35502858003 | 1.30 ppb |
| 2019-10-04 | 35502858004 | 0.990 ppb |
| 2019-10-04 | 35502858001 | 1.70 ppb |
| 2019-10-04 | 35502858002 | ND |
| 2019-10-04 | 35502858003 | 1.30 ppb |
| 2019-10-04 | 35502858004 | 0.990 ppb |
| 2020-01-09 | 35523412001 | ND |
| 2020-01-09 | 35523412002 | ND |
| 2020-01-09 | 35523412003 | ND |
| 2020-01-09 | 35523412004 | ND |
| 2020-04-03 | 35541463001 | 0.920 ppb |
| 2020-04-03 | 35541463002 | ND |
| 2020-04-03 | 35541463003 | 0.970 ppb |
| 2020-04-03 | 35541463004 | 1.30 ppb |
| 2020-07-10 | 35562378001 | ND |
| 2020-07-10 | 35562378002 | ND |
| 2020-07-10 | 35562378003 | ND |
| 2020-07-10 | 35562378004 | ND |
| 2020-10-02 | 35582099001 | 0.690 ppb |
| 2020-10-02 | 35582099002 | 0.380 ppb |
| 2020-10-02 | 35582099003 | 0.780 ppb |
| 2020-10-02 | 35582099004 | 0.900 ppb |
| 2021-01-08 | 35603483001 | 0.720 ppb |
| 2021-01-08 | 35603483002 | 0.450 ppb |
| 2021-01-08 | 35603483003 | 1.000 ppb |
| 2021-01-08 | 35603483004 | 0.920 ppb |
| 2021-04-09 | 35625080001 | 0.850 ppb |
| 2021-04-09 | 35625080002 | 0.580 ppb |
| 2021-04-09 | 35625080003 | 1.10 ppb |
| 2021-04-09 | 35625080004 | 0.670 ppb |
| 2021-07-09 | 35646369001 | 0.870 ppb |
| 2021-07-09 | 35646369002 | 0.500 ppb |
| 2021-07-09 | 35646369003 | 0.970 ppb |
| 2021-07-09 | 35646369004 | 0.840 ppb |
| 2021-10-01 | 35668737001 | 1.10 ppb |
| 2021-10-01 | 35668737002 | 0.510 ppb |
| 2021-10-01 | 35668737003 | 1.20 ppb |
| 2021-10-01 | 35668737004 | 0.670 ppb |
| 2022-01-07 | 35689215001 | 0.700 ppb |
| 2022-01-07 | 35689215002 | ND |
| 2022-01-07 | 35689215003 | 0.930 ppb |
| 2022-01-07 | 35689215004 | 0.850 ppb |
| 2022-04-01 | 35707497001 | 0.830 ppb |
| 2022-04-01 | 35707497002 | ND |
| 2022-04-01 | 35707497003 | 0.980 ppb |
| 2022-04-01 | 35707497004 | 1.000 ppb |
| 2022-07-07 | 35731064001 | 1.50 ppb |
| 2022-07-07 | 35731064002 | 1.50 ppb |
| 2022-07-07 | 35731064003 | 1.60 ppb |
| 2022-07-07 | 35731064004 | 1.40 ppb |
| 2022-10-06 | 35751458001 | 0.780 ppb |
| 2022-10-06 | 35751458002 | 0.500 ppb |
| 2022-10-06 | 35751458003 | 1.20 ppb |
| 2022-10-06 | 35751458004 | 1.10 ppb |
| 2023-01-06 | 35770968001 | 0.670 ppb |
| 2023-01-06 | 35770968002 | 0.420 ppb |
| 2023-01-06 | 35770968003 | 1.000 ppb |
| 2023-01-06 | 35770968004 | 0.660 ppb |
| 2023-04-05 | 35790912001 | 0.870 ppb |
| 2023-04-05 | 35790912002 | 0.410 ppb |
| 2023-04-05 | 35790912003 | 0.960 ppb |
| 2023-04-05 | 35790912004 | 0.860 ppb |
| 2023-07-14 | 35813441001 | 1.30 ppb |
| 2023-07-14 | 35813441002 | 0.600 ppb |
| 2023-07-14 | 35813441003 | 1.10 ppb |
| 2023-07-14 | 35813441004 | 0.980 ppb |
| 2023-10-06 | 35832961001 | 2.90 ppb |
| 2023-10-06 | 35832961002 | 1.90 ppb |
| 2023-10-06 | 35832961003 | 0.970 ppb |
| 2023-10-06 | 35832961004 | 0.920 ppb |