There are two loops known as partial hookup loops. (Electric and water only)Loop 1500 and Loop 2000.
Loop 1500 is centrally located right across from the Meadows recreation area, pool, nightly campfire and movie, etc. It is a small loop, so no site is too far from the comfort station. However, it is an older loop, that has varying sizes on the sites, and depending on the tenting equipment you set up, your "stuff" may not fit. Site 1506 is particularly bad for tenters with a tree and the grill in bad spots.
Loop 2000 is a large loop with well designed tent pads that are larger, and the spot for the grill is always off to the side, so there is no question that most any tent setup will fit on those sites. However, Loop 2000 is kind of isolated from the rest of the campground, and unless you have a golf cart or bicycles, getting to other points around the campground can be troublesome. There are two comfort stations in Loop 2000, but there are many sites that are quite a hike from the comfort station.
Our only September trip (not at the Campground) found us there with lots more rain that we typically see in October or December. If you do go that month, make sure you waterproof that tent thoroughly and have an extra rain shelter or two, so you are not stuck in your tent.