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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


7. Railroad Bridge - River Mile 6.8
Sample Collection Date Temperature
degrees Fahrenheit
E. Coli Count
organisms per 100ml
7/1/15 75.0 9
6/2/15 65.7 9
5/6/15 60.4 2
4/22/15 56.3 1
3/3/15 47.5 11
2/10/15 49.6 2000
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