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The City of Portland, Oregon

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


5. Portland Boathouse Dock - River Mile 12.9

Samples from this location tested weekly from May to October

Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
9/26/18 62.1 8
9/19/18 63.9 550
9/12/18 68.0 8
9/5/18 68.4 7
8/29/18 69.8 2
8/22/18 73.0 9
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