Yes, there's a hydrant station!!

Yes. There is a fill station just after you enter the campground. You would stop there before proceeding to your site.

Yes I believe you can

Yes. There are several potable hydrant locations.

There are water stations at the campground entrance and several throughout the campground.

Yes, there are drive up stations at the beginning of each of the two sections of the camping areas that have water tank fill faucets.