Level on sloped campsites. How? Unique to 5er's

I've camp at a few sites like that they just scrape off the grass and put some gravel down and call it good. Now I try and stay away from those and the stack them in like cord wood places! Poorly built camp grounds and I'm sure whoever built them never camped in a TT or 5th wheel. I see no reason that you would put the power supply on that side.That just goes to show they didn't have a clue about building campsites.