Residential Rate Information Unincorporated Klamath County City of Bonanza City of Chiloquin City of Dorris City of Malin City of Merrill Siskiyou County Modoc County For more information, please contact WM Customer Service at 800-808-5901 or e-mail us at WM Customer Service. Mail Residential Service Payments to: Waste Management of Oregon PO Box 541008 Los Angeles, CA 90054-1008 Weekly recycle service is included in weekly garbage rates Non-curbside services are available. WM offers an easy way to pay your garbage bill. Click here for more information: Print This Page