what side are most hookups and dump stations on?

[Arvik]

are most campgrounds and parks / dump stations on a particular side? im gearing up for plumbing and its starting to be a crucial piece of info for me?

[cowlitzcoach]

RV dumps and campgrounds are set up with water/sewer/electric on the driver's side.

Commercial dumps are set up on the curb side.

I think the difference is to keep commercial units out of RV areas and RV's out of commercial areas.