overlay zone means a mapped overlay superimposed on one or more established zoning areas which may be used to impose supplemental restrictions on uses in these areas or permit uses otherwise disallowed;
Loading Zone means a parking stall which is set aside for use by commercial vehicles if there is a sign referable to that stall marked ‘Loading Zone’;
Mixing zone means a limited area of a surface water body or aquifer where initial dilution of a discharge takes place and where certain water quality standards may be exceeded.
Low terrain means any area other than high terrain.
Use Zone means the area beneath and surrounding a play structure or piece of equipment that is designated for unrestricted movement around the equipment, and onto which a child falling from or exiting the equipment could be expected to land.