Phone: 503-823-7740
Fax: 503-823-6995
MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, 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
|
| 9/18/19 | 64.9 | 46 |
| 9/11/19 | 68.9 | 20 |
| 9/4/19 | 72.7 | 9 |
| 8/28/19 | 71.8 | 28 |
| 8/21/19 | 72.0 | 10 |
| 8/13/19 | 73.8 | 18 |
| 8/7/19 | 74.7 | 6 |
| 7/31/19 | 73.9 | 11 |
| 7/24/19 | 73.8 | 4 |
| 7/17/19 | 71.8 | 15 |
| 7/10/19 | 69.3 | 4 |
| 7/3/19 | 68.4 | 10 |
| 6/26/19 | 69.4 | 2 |
| 6/19/19 | 70.0 | ND |
| 6/12/19 | 64.9 | 8 |
| 6/5/19 | 66.0 | 6 |
| 5/29/19 | 58.6 | 10 |
| 5/22/19 | 59.7 | 11 |
|
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 |
||