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
|
| 9/28/22 | 63.9 | 12 |
| 9/21/22 | 65.3 | 4 |
| 9/14/22 | 67.1 | 21 |
| 9/7/22 | 71.4 | 5 |
| 8/31/22 | 73.2 | 10 |
| 8/24/22 | 74.3 | 12 |
| 8/17/22 | 73.8 | 4 |
| 8/10/22 | 75.2 | 17 |
| 8/3/22 | 78.6 | 10 |
| 7/27/22 | 77.2 | 20 |
| 7/20/22 | 72.3 | 3 |
| 7/13/22 | 70.2 | 13 |
| 7/6/22 | 66.2 | 4 |
| 6/29/22 | 66.9 | 3 |
| 6/22/22 | 58.8 | 23 |
| 6/15/22 | 53.6 | 190 |
| 6/8/22 | 58.5 | 47 |
| 6/1/22 | 57.0 | 46 |
|
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 |
||