- Lone Wolf, Oklahoma offers several options for dumping black and gray water, adding fresh water, and flushing tanks.- You can find a convenient dump station right at the rental company's location. It's equipped with a hose for flushing tanks and has a nearby trash bin for waste disposal.- Other nearby options include Texoma RV Park & Campground in Madill, OK, located just 40 minutes away from Lone Wolf. You'll find both a dump station and potable water there.- If you're looking for a free option, head to the Quartz Mountain Nature Park in Lone Wolf, OK. Although it doesn't offer potable water or a hose for flushing tanks, it does provide a dump station that is open to the public.