Bromochloromethane
South Grayson Special Utility District
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 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 5 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-06 | Q1804974001 | ND |
| 2018-05-04 | Q1818259004 | ND |
| 2018-10-15 | Q1840862007 | ND |
| 2018-10-15 | Q1840862009 | ND |
| 2018-10-15 | Q1840862011 | ND |
| 2018-10-15 | Q1840862013 | ND |
| 2019-08-13 | Q1954236016 | ND |
| 2019-08-13 | Q1954236018 | ND |
| 2019-08-13 | Q1954236014 | ND |
| 2019-08-13 | Q1954236012 | ND |
| 2019-08-13 | Q1954236010 | ND |
| 2020-08-06 | Q2031194009 | ND |
| 2020-08-06 | Q2031194011 | ND |
| 2020-08-06 | Q2031194013 | ND |
| 2020-08-06 | Q2031194015 | ND |
| 2020-08-06 | Q2031194017 | ND |
| 2021-11-10 | Q2131631012 | ND |
| 2021-11-10 | Q2131631018 | ND |
| 2021-11-10 | Q2131631016 | ND |
| 2021-11-10 | Q2131631014 | ND |
| 2021-11-10 | Q2131631010 | ND |
| 2022-02-08 | Q2204251002 | ND |
| 2022-04-26 | Q2212466007 | ND |
| 2022-04-26 | Q2212466009 | ND |
| 2022-04-26 | Q2212466011 | ND |
| 2022-04-26 | Q2212466013 | ND |
| 2022-04-26 | Q2212466015 | ND |
| 2022-08-17 | Q2224360001 | ND |
| 2022-10-19 | Q2231831001 | ND |
| 2023-05-16 | Q2318439007 | ND |
| 2023-05-16 | Q2318439009 | ND |
| 2023-05-16 | Q2318439011 | ND |
| 2023-05-16 | Q2318439013 | ND |
| 2023-05-16 | Q2318439015 | ND |