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
9/21/21	64.6	46
9/15/21	68.9	20
9/8/21	69.6	6
9/1/21	68.7	4
8/25/21	72.9	6
8/18/21	75.7	3
8/11/21	75.2	10
8/4/21	76.5	7
7/28/21	75.4	6
7/21/21	75.2	7
7/14/21	75.7	7
7/7/21	75.2	6
6/30/21	76.6	5
6/23/21	72.5	31
6/16/21	66.0	5
6/9/21	68.5	12
6/2/21	65.7	10
5/26/21	60.1	55
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