Bromochloromethane
Aquarion Water Company of Connecticut - Valley System
NOTE: Aquarion Water Company of Connecticut - Valley System purchases water from Regional Water Authority which is required to test for bromochloromethane. Sample information shown below was taken by Regional Water Authority.
Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 9 | 0 | ND |
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 bromochloromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development.
ppb = parts per billion
All test results
NOTE: Aquarion Water Company of Connecticut - Valley System purchases water from Regional Water Authority which is required to test for bromochloromethane. Sample information shown below was taken by Regional Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-21 | 200389833 A | ND |
| 2014-01-21 | 200389845 A | ND |
| 2014-01-21 | 200389837 A | ND |
| 2014-01-21 | 200389835 A | ND |
| 2014-01-21 | 200389841 A | ND |
| 2014-01-21 | 200389855 A | ND |
| 2014-01-21 | 200389853 A | ND |
| 2014-01-21 | 200389839 A | ND |
| 2014-01-21 | 200389843 A | ND |
| 2014-01-22 | 200389861 A | ND |
| 2014-04-29 | 200394923 | ND |
| 2014-04-29 | 200394919 | ND |
| 2014-04-29 | 200394914 | ND |
| 2014-04-29 | 200394927 | ND |
| 2014-07-15 | 200399801 | ND |
| 2014-07-15 | 200399797 | ND |
| 2014-07-15 | 200399795 | ND |
| 2014-07-15 | 200399794 | ND |
| 2014-07-15 | 200399793 | ND |
| 2014-07-15 | 200399796 | ND |
| 2014-07-15 | 200399800 | ND |
| 2014-07-15 | 200399792 | ND |
| 2014-07-15 | 200399799 | ND |
| 2014-07-15 | 200399798 | ND |
| 2014-10-21 | 200406621 | ND |
| 2014-10-21 | 200406619 | ND |
| 2014-10-21 | 200406625 | ND |
| 2014-10-21 | 200406627 | ND |