Dibromochloromethane
Capital Region Water
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 | 0.0946 ppb | 48 | 8 | ND - 0.650 ppb |
| 2019 | ND | 40 | 0 | ND |
| 2020 | 0.118 ppb | 40 | 9 | ND - 1.000 ppb |
| 2021 | 0.105 ppb | 39 | 8 | ND - 0.600 ppb |
| 2022 | 0.0313 ppb | 32 | 2 | ND - 0.500 ppb |
| 2023 | ND | 32 | 0 | ND |
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 | 2289192002 | 0.600 ppb |
| 2018-01-17 | 2289192006 | 0.530 ppb |
| 2018-01-17 | 2289192003 | 0.520 ppb |
| 2018-01-17 | 2289192005 | 0.510 ppb |
| 2018-01-17 | 2289192001 | 0.650 ppb |
| 2018-01-17 | 2289192004 | 0.580 ppb |
| 2018-01-17 | 2289192007 | 0.630 ppb |
| 2018-01-18 | 2289436001 | 0.520 ppb |
| 2018-04-17 | 2309358003 | ND |
| 2018-04-17 | 2309358007 | ND |
| 2018-04-17 | 2309358004 | ND |
| 2018-04-17 | 2309358006 | ND |
| 2018-04-17 | 2309358002 | ND |
| 2018-04-17 | 2309358005 | ND |
| 2018-04-17 | 2309358008 | ND |
| 2018-04-17 | 2309358001 | ND |
| 2018-07-17 | 2327923003 | ND |
| 2018-07-17 | 2327923007 | ND |
| 2018-07-17 | 2327923004 | ND |
| 2018-07-17 | 2327923006 | ND |
| 2018-07-17 | 2327923002 | ND |
| 2018-07-17 | 2327923005 | ND |
| 2018-07-17 | 2327923008 | ND |
| 2018-07-17 | 2327923001 | ND |
| 2018-10-16 | 8100435-03 | ND |
| 2018-10-16 | 8100435-07RE | ND |
| 2018-10-16 | 8100435-04RE | ND |
| 2018-10-16 | 8100435-06RE | ND |
| 2018-10-16 | 8100435-02 | ND |
| 2018-10-16 | 8100435-05RE | ND |
| 2018-10-16 | 8100435-08RE | ND |
| 2018-10-16 | 8100435-01 | ND |
| 2018-12-04 | 8114671-03 | ND |
| 2018-12-04 | 8114671-07 | ND |
| 2018-12-04 | 8114671-04 | ND |
| 2018-12-04 | 8114671-06 | ND |
| 2018-12-04 | 8114671-02 | ND |
| 2018-12-04 | 8114671-05 | ND |
| 2018-12-04 | 8114671-08 | ND |
| 2018-12-04 | 8114671-01 | ND |
| 2018-12-13 | 9010059-03 | ND |
| 2018-12-13 | 9010059-07 | ND |
| 2018-12-13 | 9010059-04 | ND |
| 2018-12-13 | 9010059-06 | ND |
| 2018-12-13 | 9010059-02 | ND |
| 2018-12-13 | 9010059-05 | ND |
| 2018-12-13 | 9010059-08 | ND |
| 2018-12-13 | 9010059-01 | ND |
| 2019-01-16 | 9010066-03 | ND |
| 2019-01-16 | 9010066-07 | ND |
| 2019-01-16 | 9010066-04 | ND |
| 2019-01-16 | 9010066-06 | ND |
| 2019-01-16 | 9010066-02 | ND |
| 2019-01-16 | 9010066-05 | ND |
| 2019-01-16 | 9010066-08 | ND |
| 2019-01-16 | 9010066-01 | ND |
| 2019-04-16 | 9013979-03 | ND |
| 2019-04-16 | 9013979-07 | ND |
| 2019-04-16 | 9013979-04 | ND |
| 2019-04-16 | 9013979-06 | ND |
| 2019-04-16 | 9013979-02 | ND |
| 2019-04-16 | 9013979-05 | ND |
| 2019-04-16 | 9013979-08 | ND |
| 2019-04-16 | 9013979-01 | ND |
| 2019-07-16 | 9074434-03 | ND |
| 2019-07-16 | 9074434-07 | ND |
| 2019-07-16 | 9074434-04 | ND |
| 2019-07-16 | 9074434-06 | ND |
| 2019-07-16 | 9074434-02 | ND |
| 2019-07-16 | 9074434-05 | ND |
| 2019-07-16 | 9074434-08 | ND |
| 2019-07-16 | 9074434-01 | ND |
| 2019-10-16 | 9074375-03 | ND |
| 2019-10-16 | 9074375-07 | ND |
| 2019-10-16 | 9074375-04 | ND |
| 2019-10-16 | 9074375-06 | ND |
| 2019-10-16 | 9074375-02 | ND |
| 2019-10-16 | 9074375-05 | ND |
| 2019-10-16 | 9074375-08 | ND |
| 2019-10-16 | 9074375-01 | ND |
| 2019-11-12 | 9112916-03 | ND |
| 2019-11-12 | 9112916-07 | ND |
| 2019-11-12 | 9112916-04 | ND |
| 2019-11-12 | 9112916-06 | ND |
| 2019-11-12 | 9112916-02 | ND |
| 2019-11-12 | 9112916-05 | ND |
| 2019-11-12 | 9112916-08 | ND |
| 2019-11-12 | 9112916-01 | ND |
| 2020-01-14 | 0.500 ppb | |
| 2020-01-14 | 0.500 ppb | |
| 2020-01-14 | 0.500 ppb | |
| 2020-01-14 | 0.400 ppb | |
| 2020-01-14 | 0.500 ppb | |
| 2020-01-14 | 0.400 ppb | |
| 2020-01-14 | 0.400 ppb | |
| 2020-01-14 | 0.500 ppb | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-04-15 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-07-16 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-15 | ND | |
| 2020-10-16 | 1.000 ppb | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-01-13 | ND | |
| 2021-04-14 | 0.600 ppb | |
| 2021-04-14 | 0.500 ppb | |
| 2021-04-14 | 0.500 ppb | |
| 2021-04-14 | 0.400 ppb | |
| 2021-04-14 | 0.600 ppb | |
| 2021-04-14 | 0.500 ppb | |
| 2021-04-14 | 0.500 ppb | |
| 2021-04-14 | 0.500 ppb | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-07-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-10-13 | ND | |
| 2021-11-01 | ND | |
| 2021-12-07 | ND | |
| 2021-12-07 | ND | |
| 2021-12-07 | ND | |
| 2021-12-07 | ND | |
| 2021-12-07 | ND | |
| 2021-12-07 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-01-12 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-04-13 | ND | |
| 2022-07-13 | ND | |
| 2022-07-13 | ND | |
| 2022-07-13 | ND | |
| 2022-07-13 | 0.500 ppb | |
| 2022-07-13 | 0.500 ppb | |
| 2022-07-13 | ND | |
| 2022-07-13 | ND | |
| 2022-07-13 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2022-10-18 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-01-17 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-04-18 | ND | |
| 2023-07-17 | ND | |
| 2023-07-17 | ND | |
| 2023-07-17 | ND | |
| 2023-07-17 | ND | |
| 2023-07-17 | ND | |
| 2023-07-17 | ND | |
| 2023-07-18 | ND | |
| 2023-07-18 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND | |
| 2023-10-17 | ND |