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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
08/05/26	73.2°F	5 ↓
07/01/26	69.6°F	16 ↓
06/04/26	66.2°F	34 ↓
05/06/26	61.5°F	5 ↓
04/01/26	51.3°F	5 ↓
03/04/26	48.0°F	13 ↓

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