Test Results | The City of Portland, Oregon

2. Sellwood Riverfront Park Dock - River Mile 16.4

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	62.8	61
9/20/23	67.6	6
9/13/23	67.5	58
9/6/23	67.1	10
8/30/23	69.8	13
8/23/23	74.7	3
8/16/23	76.6	100
8/9/23	75.2	6
8/2/23	74.5	12
7/26/23	75.2	17
7/19/23	74.5	23
7/12/23	73.9	8
7/5/23	73.4	14
6/28/23	69.4	7
6/21/23	64.9	17
6/14/23	66.9	16
6/7/23	64.9	8
5/31/23	64.0	10
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