Location, size and invert elevation of any existing sanitary or storm
sewers, culverts and drain pipes, the location of manholes, catch
basins, hydrants, electric and communication facilities, whether overhead
or underground and the location and size of any existing water and
gas mains within the exterior boundaries of the plat or immediately
adjacent thereto. If no sanitary or storm sewers or water mains are
located on or immediately adjacent to the tract, the nearest such
sewers or water mains which might be extended to serve the tract shall
be indicated by the direction and distance from the tract, size and
invert elevations.