Bromochloromethane
Maple Bluff Waterworks
NOTE: Maple Bluff Waterworks purchases water from Madison Water Utility which is required to test for bromochloromethane. Sample information shown below was taken by Madison Water Utility.
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
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: Maple Bluff Waterworks purchases water from Madison Water Utility which is required to test for bromochloromethane. Sample information shown below was taken by Madison Water Utility.
| Date | Lab ID | Result |
|---|---|---|
| 2015-03-09 | 3201773 | ND |
| 2015-03-09 | 3201801 | ND |
| 2015-03-09 | 3201823 | ND |
| 2015-03-09 | 3201693 | ND |
| 2015-03-09 | 3201753 | ND |
| 2015-03-09 | 3201812 | ND |
| 2015-03-09 | 3201834 | ND |
| 2015-03-10 | 3202328 | ND |
| 2015-03-10 | 3202418 | ND |
| 2015-03-10 | 3202433 | ND |
| 2015-03-10 | 3202477 | ND |
| 2015-03-10 | 3202357 | ND |
| 2015-03-10 | 3202317 | ND |
| 2015-03-10 | 3202306 | ND |
| 2015-03-10 | 3202389 | ND |
| 2015-03-11 | 3203974 | ND |
| 2015-05-19 | 3245222 | ND |
| 2015-05-19 | 3245233 | ND |
| 2015-05-21 | 3248062 | ND |
| 2015-05-27 | 3250685 | ND |
| 2015-07-08 | 3276586 | ND |
| 2015-07-21 | 3284356 | ND |
| 2015-09-01 | 3313064 | ND |
| 2015-09-14 | 3321415 | ND |
| 2015-09-14 | 3321389 | ND |
| 2015-09-15 | 3322735 | ND |
| 2015-09-15 | 3322757 | ND |
| 2015-09-15 | 3322634 | ND |
| 2015-09-15 | 3322683 | ND |
| 2015-09-15 | 3322871 | ND |
| 2015-09-15 | 3322851 | ND |
| 2015-09-15 | 3322746 | ND |
| 2015-09-15 | 3322823 | ND |
| 2015-09-15 | 3322783 | ND |
| 2015-09-15 | 3322694 | ND |
| 2015-09-15 | 3322670 | ND |
| 2015-09-16 | 3324051 | ND |
| 2015-09-16 | 3323913 | ND |
| 2015-09-16 | 3324081 | ND |
| 2015-09-16 | 3323924 | ND |
| 2015-09-16 | 3324021 | ND |
| 2015-09-16 | 3323902 | ND |
| 2015-09-16 | 3323939 | ND |
| 2015-12-29 | 3380098 | ND |