I have been out there, I haven't stayed at the campgrounds. I want to say there was a dump station but I cannot remember about water. I know there is a water spout at the campground but I am not sure how they would take to filling tanks. Here is the number for the field office for BLM in Moab435-259-2100 I call regularly before making the trip to Moab from SLC. I am sure they can answer questions like this.
2015 Forest River EVO 2850
2012 Dodge Ram 2500 6.7 Cummins
Yamaha 2k x 2 with parallel cable
EMS 30 PI portable w/ Edison plug
Nights Camped (2016-13) (2015-13)