Dibromochloromethane
Monroeville 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 | 0.653 ppb | 16 | 11 | ND - 1.000 ppb |
| 2019 | 0.690 ppb | 16 | 12 | ND - 1.70 ppb |
| 2020 | 0.533 ppb | 16 | 11 | ND - 0.947 ppb |
| 2021 | 0.683 ppb | 16 | 10 | ND - 1.82 ppb |
| 2022 | 0.353 ppb | 16 | 6 | ND - 1.22 ppb |
| 2023 | 0.298 ppb | 16 | 5 | ND - 1.26 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 |
|---|---|---|
| 2018-01-17 | 01182408 | 1.000 ppb |
| 2018-01-17 | 01182407 | 1.000 ppb |
| 2018-01-17 | 01182410 | 1.000 ppb |
| 2018-01-17 | 01182409 | 1.000 ppb |
| 2018-04-17 | 18D1368-01 | 1.000 ppb |
| 2018-04-17 | 18D1368-04 | 1.000 ppb |
| 2018-04-17 | 18D1368-02 | 1.000 ppb |
| 2018-04-17 | 18D1368-03 | ND |
| 2018-07-18 | 18G1809-02 | 0.740 ppb |
| 2018-07-18 | 18G1809-01 | 0.820 ppb |
| 2018-07-18 | 18G1809-04 | ND |
| 2018-07-18 | 18G1809-03 | ND |
| 2018-10-17 | 18J1729-03 | ND |
| 2018-10-17 | 18J1729-01 | 0.963 ppb |
| 2018-10-17 | 18J1729-02 | ND |
| 2018-10-17 | 18J1729-04 | 0.926 ppb |
| 2019-01-16 | 19A1462-01 | ND |
| 2019-01-16 | 19A1462-02 | ND |
| 2019-01-16 | 19A1462-01 | 0.982 ppb |
| 2019-01-16 | 19A1462-02 | 1.06 ppb |
| 2019-04-16 | 19D0013-01 | 0.767 ppb |
| 2019-04-16 | 19D0013-03 | 0.571 ppb |
| 2019-04-16 | 19D0013-04 | 0.666 ppb |
| 2019-04-16 | 19D0013-02 | 0.599 ppb |
| 2019-07-17 | 19G0646-04 | ND |
| 2019-07-17 | 19G0646-01 | 0.743 ppb |
| 2019-07-17 | 19G0646-03 | 0.738 ppb |
| 2019-07-17 | 19G0646-02 | ND |
| 2019-10-16 | 19J0353-02 | 1.17 ppb |
| 2019-10-16 | 19J0353-01 | 1.24 ppb |
| 2019-10-16 | 19J0353-03 | 0.807 ppb |
| 2019-10-16 | 19J0353-04 | 1.70 ppb |
| 2020-01-16 | 0.947 ppb | |
| 2020-01-16 | ND | |
| 2020-01-16 | 0.760 ppb | |
| 2020-01-16 | 0.644 ppb | |
| 2020-04-15 | ND | |
| 2020-04-15 | 0.560 ppb | |
| 2020-04-15 | 0.834 ppb | |
| 2020-04-15 | 0.849 ppb | |
| 2020-07-16 | 0.742 ppb | |
| 2020-07-16 | ND | |
| 2020-07-16 | 0.720 ppb | |
| 2020-07-16 | ND | |
| 2020-10-14 | 0.862 ppb | |
| 2020-10-14 | ND | |
| 2020-10-14 | 0.770 ppb | |
| 2020-10-14 | 0.846 ppb | |
| 2021-01-19 | 0.923 ppb | |
| 2021-01-19 | 1.82 ppb | |
| 2021-01-19 | ND | |
| 2021-01-19 | 0.690 ppb | |
| 2021-04-15 | ND | |
| 2021-04-15 | 1.21 ppb | |
| 2021-04-15 | ND | |
| 2021-04-15 | 1.33 ppb | |
| 2021-07-15 | 0.926 ppb | |
| 2021-07-15 | 0.978 ppb | |
| 2021-07-15 | ND | |
| 2021-07-17 | ND | |
| 2021-10-19 | 0.940 ppb | |
| 2021-10-19 | 1.14 ppb | |
| 2021-10-19 | ND | |
| 2021-10-19 | 0.969 ppb | |
| 2022-01-19 | 1.10 ppb | |
| 2022-01-19 | ND | |
| 2022-01-19 | ND | |
| 2022-01-19 | ND | |
| 2022-04-19 | 0.907 ppb | |
| 2022-04-19 | ND | |
| 2022-04-19 | 0.698 ppb | |
| 2022-04-19 | 1.22 ppb | |
| 2022-07-19 | ND | |
| 2022-07-19 | ND | |
| 2022-07-19 | ND | |
| 2022-07-19 | ND | |
| 2022-10-18 | 0.896 ppb | |
| 2022-10-18 | ND | |
| 2022-10-18 | 0.832 ppb | |
| 2022-10-18 | ND | |
| 2023-01-18 | ND | |
| 2023-01-18 | ND | |
| 2023-01-18 | ND | |
| 2023-01-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | 0.515 ppb | |
| 2023-04-18 | ND | |
| 2023-07-17 | 1.26 ppb | |
| 2023-07-17 | ND | |
| 2023-07-17 | 1.17 ppb | |
| 2023-07-17 | ND | |
| 2023-10-17 | 0.917 ppb | |
| 2023-10-17 | ND | |
| 2023-10-17 | 0.906 ppb | |
| 2023-10-17 | ND |