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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

More Contact Info


8. Cathedral Park Boat Launch - River Mile 5.6
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
8/23/16 74.3 12
8/16/16 73.8 14
8/9/16 72.3 7
8/2/16 74.1 24
7/26/16 72.3 7
7/20/16 71.6 28
7/13/16 71.4 5
7/6/16 72.9 7
6/29/16 68.9 2
6/21/16 64.8 23
6/15/16 68.4 3
6/8/16 70.3 4
5/31/16 62.4 11
5/25/16 61.2 1
5/17/16 62.6 15
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