Bromochloromethane
City of Carlsbad
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.
4
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 | 0.190 ppb | 1 | 1 | 0.190 ppb |
| 2014 | 0.190 ppb | 3 | 3 | 0.0600 ppb - 0.420 ppb |
| 2015 | ND | 4 | 0 | ND |
| 2016 | 0.218 ppb | 4 | 1 | ND - 0.870 ppb |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-10-23 | 2918385 | 0.190 ppb |
| 2014-01-22 | 2961806 | 0.0900 ppb |
| 2014-04-16 | 3009571 | 0.0600 ppb |
| 2014-07-31 | 3073595 | 0.420 ppb |