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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info


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
9/27/17 61.0 14
9/20/17 63.7 75
9/13/17 68.9 9
9/6/17 70.2 18
8/30/17 69.6 14
8/23/17 69.4 22
8/16/17 73.0 8
8/8/17 77.4 14
8/2/17 74.8 6
7/26/17 73.6 12
7/19/17 73.4 26
7/12/17 72.9 6
7/5/17 72.1 1
6/28/17 69.3 2
6/21/17 62.6 8
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