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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


5. Portland Boathouse Dock - River Mile 12.9
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
9/16/14 66.4 7
9/9/14 68.5 5
9/2/14 71.4 16
8/26/14 73.4 11
8/20/14 72.9 3
8/13/14 74.7 14
8/4/14 75.4 3
7/30/14 73.6 3
7/22/14 74.8 8
7/16/14 75.9 12
7/8/14 72.5 58
7/1/14 67.5 6
6/24/14 65.7 110
6/17/14 63.1 21
6/10/14 66.7 3
6/3/14 62.4 2
5/27/14 62.2 9
5/21/14 59.5 15
5/13/14 53.8 46
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