Skip to Main Content View Text-Only

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


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
9/15/21 68.5 13
9/8/21 70.0 4
9/1/21 68.7 1
8/25/21 73.4 8
8/18/21 75.6 10
8/11/21 75.6 10
8/4/21 77.2 4
7/28/21 76.3 4
7/21/21 75.2 6
7/14/21 75.7 7
7/7/21 75.4 16
6/30/21 76.8 9
6/23/21 73.0 22
6/16/21 65.8 7
6/9/21 68.7 3
6/2/21 66.7 11
5/26/21 61.3 55
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