Test Results | The City of Portland, Oregon

5. Portland Boathouse Dock - River Mile 12.9

Samples from this location tested weekly from May to October

Sample Collection Date	Temperature degrees Fahrenheit	E. Coli Count organisms per 100ml
9/27/23	63.3	39
9/20/23	68.0	2
9/13/23	67.5	8
9/6/23	67.5	13
8/30/23	70.5	14
8/23/23	75.0	8
8/16/23	76.8	15
8/9/23	74.7	11
8/2/23	74.7	11
7/26/23	75.4	64
7/19/23	74.1	8
7/12/23	73.8	25
7/5/23	73.2	7
6/28/23	68.9	88
6/21/23	65.8	20
6/14/23	66.9	10
6/7/23	65.3	6
An E. coli count less than 406 is below the health standard set by the Oregon Department of Environmental Quality. A value of 'ND' indicates a non-detection. ↓ below state health standard - ↑ above state health standard

The City of Portland, Oregon