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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

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5. Portland Boathouse Dock - River Mile 12.9
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
9/1/15 72.3 32
8/25/15 73.2 5
8/18/15 73.9 4
8/11/15 75.9 4
8/4/15 75.6 8
7/28/15 74.7 21
7/21/15 75.2 8
7/15/15 77.5 25
7/8/15 79.7 40
6/30/15 75.4 12
6/23/15 72.1 2
6/17/15 73.4 9
6/10/15 72.0 13
6/3/15 67.5 15
5/26/15 63.3 30
5/20/15 62.1 10
5/13/15 61.3 10
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