Dibromochloromethane
North Fayette Cnty Municipal Authority
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 | 1.07 ppb | 16 | 16 | 0.798 ppb - 1.56 ppb |
| 2019 | 1.06 ppb | 16 | 16 | 0.627 ppb - 1.68 ppb |
| 2020 | 1.17 ppb | 16 | 14 | ND - 4.09 ppb |
| 2021 | 0.548 ppb | 16 | 12 | ND - 1.04 ppb |
| 2022 | 0.222 ppb | 16 | 6 | ND - 0.679 ppb |
| 2023 | 0.857 ppb | 16 | 14 | ND - 1.84 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 |
|---|---|---|
| 2018-02-06 | 02180896 | 1.000 ppb |
| 2018-02-06 | 02180895 | 1.000 ppb |
| 2018-02-06 | 02180893 | 1.000 ppb |
| 2018-02-06 | 02180894 | 1.000 ppb |
| 2018-05-08 | 18E0738-03 | 0.798 ppb |
| 2018-05-08 | 18E0738-01 | 0.835 ppb |
| 2018-05-08 | 18E0738-04 | 0.882 ppb |
| 2018-05-08 | 18E0738-02 | 0.917 ppb |
| 2018-08-07 | 18H0426-03 | 1.34 ppb |
| 2018-08-07 | 18H0426-01 | 1.16 ppb |
| 2018-08-07 | 18H0426-04 | 1.56 ppb |
| 2018-08-07 | 18H0426-02 | 1.12 ppb |
| 2018-11-13 | 18K1423-02 | 0.943 ppb |
| 2018-11-13 | 18K1423-03 | 0.836 ppb |
| 2018-11-13 | 18K1423-04 | 1.25 ppb |
| 2018-11-13 | 18K1423-01 | 1.52 ppb |
| 2019-02-12 | 19B0643-02 | 0.921 ppb |
| 2019-02-12 | 19B0643-04 | 1.09 ppb |
| 2019-02-12 | 19B0643-03 | 0.627 ppb |
| 2019-02-12 | 19B0643-01 | 1.68 ppb |
| 2019-05-09 | 19E1606-03 | 0.990 ppb |
| 2019-05-09 | 19E1606-02 | 0.924 ppb |
| 2019-05-09 | 19E1606-01 | 1.14 ppb |
| 2019-05-09 | 19E1606-04 | 1.03 ppb |
| 2019-08-07 | 19H0226-01 | 1.24 ppb |
| 2019-08-07 | 19H0226-03 | 1.21 ppb |
| 2019-08-07 | 19H0226-02 | 0.994 ppb |
| 2019-08-07 | 19H0226-04 | 1.41 ppb |
| 2019-11-07 | 19K0224-04 | 0.926 ppb |
| 2019-11-07 | 19K0224-03 | 1.02 ppb |
| 2019-11-07 | 19K0224-02 | 0.866 ppb |
| 2019-11-07 | 19K0224-01 | 0.913 ppb |
| 2020-02-11 | 4.09 ppb | |
| 2020-02-11 | 1.19 ppb | |
| 2020-02-11 | 0.858 ppb | |
| 2020-02-11 | 4.08 ppb | |
| 2020-05-12 | 0.614 ppb | |
| 2020-05-12 | ND | |
| 2020-05-12 | ND | |
| 2020-05-12 | 0.597 ppb | |
| 2020-08-11 | 1.24 ppb | |
| 2020-08-11 | 0.783 ppb | |
| 2020-08-11 | 1.07 ppb | |
| 2020-08-11 | 1.06 ppb | |
| 2020-11-10 | 0.729 ppb | |
| 2020-11-10 | 0.836 ppb | |
| 2020-11-10 | 0.668 ppb | |
| 2020-11-10 | 0.970 ppb | |
| 2021-02-09 | 0.853 ppb | |
| 2021-02-09 | 0.837 ppb | |
| 2021-02-09 | 0.691 ppb | |
| 2021-02-09 | 0.803 ppb | |
| 2021-05-11 | ND | |
| 2021-05-11 | ND | |
| 2021-05-11 | ND | |
| 2021-05-11 | ND | |
| 2021-08-10 | 0.685 ppb | |
| 2021-08-10 | 0.655 ppb | |
| 2021-08-10 | 0.541 ppb | |
| 2021-08-10 | 1.04 ppb | |
| 2021-11-10 | 0.643 ppb | |
| 2021-11-10 | 0.721 ppb | |
| 2021-11-10 | 0.516 ppb | |
| 2021-11-10 | 0.777 ppb | |
| 2022-02-10 | ND | |
| 2022-02-10 | ND | |
| 2022-02-10 | ND | |
| 2022-02-10 | ND | |
| 2022-05-10 | ND | |
| 2022-05-10 | ND | |
| 2022-05-10 | ND | |
| 2022-05-10 | 0.584 ppb | |
| 2022-08-10 | 0.537 ppb | |
| 2022-08-10 | 0.611 ppb | |
| 2022-08-10 | 0.602 ppb | |
| 2022-08-10 | 0.679 ppb | |
| 2022-11-09 | 0.543 ppb | |
| 2022-11-09 | ND | |
| 2022-11-09 | ND | |
| 2022-11-09 | ND | |
| 2023-02-07 | 0.614 ppb | |
| 2023-02-07 | ND | |
| 2023-02-07 | ND | |
| 2023-02-07 | 0.683 ppb | |
| 2023-05-09 | 0.555 ppb | |
| 2023-05-09 | 0.732 ppb | |
| 2023-05-09 | 0.757 ppb | |
| 2023-05-09 | 0.670 ppb | |
| 2023-08-08 | 1.40 ppb | |
| 2023-08-08 | 1.84 ppb | |
| 2023-08-08 | 1.60 ppb | |
| 2023-08-08 | 1.83 ppb | |
| 2023-11-07 | 0.722 ppb | |
| 2023-11-07 | 0.673 ppb | |
| 2023-11-07 | 0.568 ppb | |
| 2023-11-07 | 1.07 ppb |