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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


7. Railroad Bridge - River Mile 6.8
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
7/9/14 72.5 4
6/3/14 62.8 5
5/7/14 55.8 18
4/9/14 52.0 16
3/12/14 48.4 67
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