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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info


2. Sellwood Riverfront Park Dock - River Mile 16.4

Samples from this location tested weekly from May to October

Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
9/21/21 64.2 21
9/15/21 68.2 8
9/8/21 69.3 15
9/1/21 68.9 2
8/25/21 71.4 8
8/18/21 75.7 8
8/11/21 75.0 69
8/4/21 76.8 22
7/28/21 75.9 63
7/21/21 75.7 7
7/14/21 75.0 15
7/7/21 74.5 38
6/30/21 76.6 29
6/23/21 72.5 72
6/16/21 65.1 22
6/9/21 68.0 5
6/2/21 66.0 5
5/26/21 59.4 140
An E. coli count less than 406 is below the health standard set by the Oregon Department of Environmental Quality. A value of 'ND' indicates a non-detection.
↓ below state health standard - ↑ above state health standard