North Spokane RV Campground, 10904 N Newport Hwy, Spokane WA 99218 / 509-315-5561. $20 or less.
Last updated: 6/11/2015
Washington
Spokane, Washington
Petro Stopping Center, 10506 W Aero Rd, Spokane WA 99224 / 509-842-1100. $10 or less. I-90 Exit 272.
Last updated: 3/5/2014
Spokane, Washington
Riverside State Park, Bowl & Pitcher Campground, 4427 N Aubrey L White Parkway, Spokane WA 99205 / 509-625-5553. $10 or less.
Last updated: 5/29/2020
Stanwood, Washington
Camano Island State Park about 14 miles southwest of town. $10 or less.
Last updated: 1/10/2005
Stevenson, Washington
Public dump station in parking lot near the Skamania County Fairgrounds along Rock Creek Dr, about 1/4 mile west of SR-14. Rinse water. $10 or less.
Last updated: 7/13/2020
Sumas, Washington
Sumas RV Park & Campground, 9600 Easterbrook, 360-988-8875. $10 or less.
Last updated: 6/18/2005
Sumner, Washington
Sumner Sewage Treatment Plant, 13114 63rd St E, Sumner WA 98390 / 253-299-5760. Rinse water. Free.
Last updated: 5/20/2024
Tonasket, Washington
Tonasket Chamber of Commerce RV Park, 7 North Western, Tonasket WA 98855 / 509-486-4436. $10 or less.
Last updated: 5/14/2019
Toppenish, Washington
Public dump station at the corner of SR-22 and Washington Avenue, across from the Toppenish Public Works Department. Potable water. Rinse water. Free.
Last updated: 10/14/2020
Walla Walla, Washington
Cenex Convenience Store at 706 W Rose St. Cost is unknown.
Last updated: 6/30/2003