As recognized while analyzing elevations and grades at the beginning of our storm drainage gravity utility network design, we realized that we are approximately 25’ below the existing grade along York County Highway at our lowest point within our residential subdivision design.

That said, we will need to use a combination of gravity and pressurized utility networks and find a suitable location for the placement of a required pump station to ensure that we are able to remove wastewater from our site and tie into the existing sanitary sewer network along York Hwy.

With that, let’s go ahead and create a proposed sanitary sewer network using similar steps used to create our GPN - Proposed Storm Drainage gravity utility network earlier in this chapter.

Using the Pipe Network Creation Tools option as done earlier, we’ll create a new sanitary sewer gravity utility network with the following fields applied (also...