On two separate occasions, we went to Justin's Diamond J RV park right down the road. They don't have a separate water fill station, but will let you pull into an RV site, if one is available, to fill tanks.
It’s been a while but we went to a nearby campground to dump but we didn’t need water. For drinking water we took jugs to the nearby gas station and filled them for 25 cents/gallon. I will try to look back thru my journal and see if I made a note.