- Penrose Point State Park offers a dump station for RVers looking to dispose of black and gray water, refill fresh water, and use a hose for flushing tanks.- Belfair State Park has a dump station with an additional feature - a trash bin for waste disposal.- Gig Harbor RV Resort is another option for dumping black and gray water and filling fresh water. - All dump stations are easily accessible from Vaughn, Washington, making them convenient stops for those traveling in RVs.