Bromochloromethane
Contra Costa Water 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.
9
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.0414 ppb | 8 | 4 | ND - 0.0970 ppb |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-03-19 | 201303200300AM | ND |
| 2013-03-20 | 201303210135AM | ND |
| 2013-06-11 | 201306120211AM | 0.0940 ppb |
| 2013-06-12 | 201306130200AM | ND |
| 2013-09-10 | 201309110439AM | 0.0970 ppb |
| 2013-09-11 | 201309120475AM | 0.0600 ppb |
| 2013-12-10 | 201312120835AM | 0.0800 ppb |
| 2013-12-11 | 201312120837AM | ND |
| 2017-12-19 | 9590-003-1330 | ND |