Bromomethane
Derry Water Department
NOTE: Derry Water Department purchases water from Manchester Water Works which is required to test for bromomethane. Sample information shown below was taken by Manchester Water Works.
Bromomethane, or methyl bromide, is a pesticide fumigant that was banned because it depletes the ozone layer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Derry Water Department purchases water from Manchester Water Works which is required to test for bromomethane. Sample information shown below was taken by Manchester Water Works.
Date | Lab ID | Result |
---|---|---|
2014-02-17 | 1402-00336-001 | ND |
2014-03-26 | 201403270197AM | ND |
2014-05-14 | 1405-00442-001 | ND |
2014-06-18 | 201406190252AM | ND |
2014-08-04 | 1408-00056-001 | ND |
2014-09-09 | 201409100994AM | ND |
2014-12-16 | 201412170480AM | ND |
2015-08-17 | 1508-01335-002 | ND |
2016-08-11 | 1608-01474-001 | ND |
2017-08-16 | 1708-02233-001 | ND |
2018-09-10 | 1810-02544-001 | ND |
2019-08-13 | 1908-01819-001 | ND |