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6. Morrison Bridge - River Mile 12.7

Samples from this location tested monthly

An E. coli count less than 406 is below the health standard set by the Oregon Department of Environmental Quality.

↓ indicates below state health standard
↑ indicates above state health standard
'ND' indicates a non-detection

Sample Collection Date Temperature E. Coli Count
organisms per 100 ml
51.3°F 5 ↓
48.0°F 13 ↓
45.3°F 12 ↓
46.0°F 81 ↓
51.4°F 290 ↓
48.2°F 16 ↓
53.1°F 62 ↓

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