- You'll find four convenient dump stations for dumping black and gray water, refilling fresh water, flushing tanks with a hose, and disposing of waste near Strum, Wisconsin.- The City of Eau Claire Wastewater Treatment Plant offers free dump station services to RVers. - Sandy Hill Campground has a dump station with a trash bin and freshwater refilling option.- The City Sewage Treatment Plant in Chippewa Falls has a well-maintained dump station available for public use. - Pine Harbor Campground is an excellent choice for RVers as it offers clean and easy-to-use dump facilities along with other amenities such as shower rooms and restrooms.