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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info


4. Riverplace Marina Boat Dock - River Mile 13.2
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
9/30/14 63.0 11
9/22/14 66.0 9
9/16/14 66.2 5
9/9/14 68.5 13
9/2/14 72.0 18
8/26/14 73.8 8
8/20/14 73.0 5
8/13/14 74.8 8
8/4/14 75.6 8
7/30/14 74.1 4
7/22/14 75.6 4
7/16/14 76.5 3
7/8/14 72.7 1
7/1/14 68.2 8
6/24/14 66.0 8
6/17/14 63.1 23
6/10/14 67.3 3
6/3/14 62.2 5
5/27/14 63.1 13
5/21/14 59.7 15
5/13/14 53.6 48
An E. coli count less than 406 is below the health standard set by the Oregon Department of Environmental Quality
↓ below state health standard - ↑ above state health standard