If you're in Grand Detour, Illinois, and need to dump your black water or gray water tanks, there are a few options available. Lake Louise Campground provides an RV waste disposal site with fresh water access and a hose for flushing tanks. TA-Petro Rochelle Stopping Center has a dedicated area for dumping, including an RV trash bin and freshwater fill station. Pilot Flying J offers a dump station with easy access for larger RVs. Rock Cut State Park also has a dumping station with potable water available nearby.