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
|
| 9/9/20 | 69.6 | 5 |
| 9/2/20 | 72.0 | 11 |
| 8/26/20 | 72.5 | 4 |
| 8/19/20 | 73.2 | 45 |
| 8/12/20 | 73.4 | 4 |
| 8/5/20 | 76.6 | 3 |
| 7/29/20 | 74.8 | 9 |
| 7/23/20 | 74.1 | 9 |
| 7/15/20 | 70.7 | 5 |
| 7/8/20 | 67.8 | 11 |
| 7/1/20 | 68.2 | 4 |
| 6/24/20 | 66.6 | 7 |
| 6/17/20 | 61.3 | 18 |
| 6/10/20 | 63.0 | 19 |
| 6/3/20 | 65.1 | 13 |
| 5/27/20 | 58.3 | 6 |
| 5/21/20 | 57.4 | 22 |
|
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 |
||