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
|
| 9/15/21 | 68.5 | 13 |
| 9/8/21 | 70.0 | 4 |
| 9/1/21 | 68.7 | 1 |
| 8/25/21 | 73.4 | 8 |
| 8/18/21 | 75.6 | 10 |
| 8/11/21 | 75.6 | 10 |
| 8/4/21 | 77.2 | 4 |
| 7/28/21 | 76.3 | 4 |
| 7/21/21 | 75.2 | 6 |
| 7/14/21 | 75.7 | 7 |
| 7/7/21 | 75.4 | 16 |
| 6/30/21 | 76.8 | 9 |
| 6/23/21 | 73.0 | 22 |
| 6/16/21 | 65.8 | 7 |
| 6/9/21 | 68.7 | 3 |
| 6/2/21 | 66.7 | 11 |
| 5/26/21 | 61.3 | 55 |
|
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 |
||