Public Utilities & Environment All Categories... Environmental ServicesPublic Utilities go Results Found: 6 Diamond Gresham Sanitary Service Inc. 2131 NW Birdsdale Gresham OR 97030 (503) 665-2424 Diamond Portland General Electric 121 SW Salmon Street Portland OR 97204 (503) 464-8565 Arrow Sanitary Service Arrow Sanitary Service 5455 NE 109th Ave Portland OR 97220 (503) 257-1331 Waste Management of Oregon 7227 NE 55th Portland OR 97218 (503) 493-7831 Rockwood Solid Waste, Inc. Rockwood Solid Waste, Inc. 2550 NW Burnside Court Gresham OR 97030 (503) 666-3488 NW Natural 220 NW 2nd Portland OR 97209 (503) 226-4211