Phone: 503-823-7740
Fax: 503-823-6995
1120 SW 5th Ave, Suite 613, Portland, OR 97204
5. Portland Boathouse Dock - River Mile 12.9
Samples from this location tested weekly from May to October
| Sample Collection Date |
Temperature
degrees Fahrenheit
|
E. Coli Count
organisms per 100ml
|
| 9/28/22 | 64.0 | 20 |
| 9/21/22 | 64.9 | 14 |
| 9/14/22 | 66.4 | 26 |
| 9/7/22 | 71.4 | 3 |
| 8/31/22 | 73.2 | 8 |
| 8/24/22 | 73.9 | 9 |
| 8/17/22 | 73.0 | 5 |
| 8/10/22 | 74.8 | 24 |
| 8/3/22 | 77.4 | 5 |
| 7/27/22 | 74.7 | 10 |
| 7/20/22 | 71.6 | 6 |
| 7/13/22 | 70.0 | 10 |
| 7/6/22 | 66.0 | 4 |
| 6/29/22 | 66.9 | 4 |
| 6/22/22 | 59.0 | 21 |
| 6/15/22 | 53.8 | 160 |
| 6/8/22 | 58.5 | 28 |
|
An E. coli count less than 406 is below the health standard set by the Oregon Department of Environmental Quality. A value of 'ND' indicates a non-detection.
↓ below state health standard - ↑ above state health standard |
||