To use the RV dump station, you need to go inside and sign a waiver, pay the fee, and place a deposit. They will make a copy of your driver's license and return the deposit when you're done. The staff at the dump station is friendly and helpful. There is rinse water available, but it is not safe for drinking. The dump station is located at I-80 Exit 85, specifically at West El Camino, about 1 mile west of I-5. To get there, you should exit Highway 80 at West El Camino and head north towards El Centro Road. The dump station is on the east side of El Centro Road, right after the freeway.