To access the RV dump station, you need to go inside and pay a fee. Once you've paid, you'll receive a key. The dump station is not clearly marked, so you need to enter through the truck entrance. Drive past the scales and around the shop. The dump station will be on the left side, and you can identify it by a yellow light pole. There is rinse water available, but it is not suitable for drinking. If you have a wrench without a handle, you can use it at the dump station. The location of the RV dump station is at I-90 Exit 36, specifically at the intersection of I-90 and U.S. Hwy. 20.