Shainwald v. City of Portland

The city of Portland is located near the junction of the Willamette and Columbia rivers, the older business section being west of the Willamette river and the larger residential area to the east on the peninsula between the two rivers.

Sewers have been constructed and extended from time to time, using the deepest and most direct outlets into these two streams. At present there are 59 individual sewer outlets into the Willamette river and the Columbia slough, a flood channel of the Columbia river. All sewers are on the “combined” system, carrying storm waters as well as sanitary sewage. The…