Phone: 503-823-7740
Fax: 503-823-6995
1120 SW 5th Ave, Suite 613, Portland, OR 97204
4. Riverplace Marina Boat Dock - River Mile 13.2
Samples from this location tested weekly from May to October
| Sample Collection Date |
Temperature
degrees Fahrenheit
|
E. Coli Count
organisms per 100ml
|
| 9/27/23 | 63.1 | 56 |
| 9/20/23 | 67.6 | 3 |
| 9/13/23 | 67.3 | 3 |
| 9/6/23 | 67.6 | 3 |
| 8/30/23 | 71.1 | 15 |
| 8/23/23 | 75.2 | 8 |
| 8/16/23 | 79.2 | 13 |
| 8/9/23 | 75.6 | 8 |
| 8/2/23 | 74.8 | 13 |
| 7/26/23 | 75.6 | 15 |
| 7/19/23 | 74.5 | 2 |
| 7/12/23 | 75.4 | 3 |
| 7/5/23 | 73.4 | 5 |
| 6/28/23 | 69.8 | 4 |
| 6/21/23 | 66.0 | 12 |
| 6/14/23 | 66.7 | 5 |
| 6/7/23 | 65.3 | 3 |
|
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 |
||