Bromomethane
City of Portland
NOTE: City of Portland purchases water from San Patricio Municipal Water District which is required to test for bromomethane. Sample information shown below was taken by San Patricio Municipal Water District.
Bromomethane, or methyl bromide, is a pesticide fumigant that was banned because it depletes the ozone layer.
6
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 | ND | 4 | 0 | ND |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 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: City of Portland purchases water from San Patricio Municipal Water District which is required to test for bromomethane. Sample information shown below was taken by San Patricio Municipal Water District.
| Date | Lab ID | Result |
|---|---|---|
| 2014-09-16 | AC67104 | ND |
| 2015-09-10 | AD06600 | ND |
| 2016-07-20 | AD45239 | ND |
| 2017-09-13 | AD96017 | ND |
| 2018-08-23 | AE38453 | ND |
| 2019-08-06 | AE77289 | ND |