- Dinosaur Valley State Park has an RV dump station where you can dispose of your black and gray water. - Bennett's Camping Center is another location in Tolar, Texas that offers RV dumping facilities. They also provide fresh water and a hose for flushing tanks. - At 377 Market Place & RV Park, you'll find a convenient dump station with a trash bin for waste disposal. - Tres Rios RV Resort also has an accessible dump station that allows you to get rid of your wastewater without any hassle.