The concrete people and/or our builder Brad flattened out the back of the lot, dug the basement a couple of feet deeper, and made room to start digging an prepare to lot for the foundation forms. In the process of that, they found (or broke) the old sewer line that was on the property. City sewer workers were there when we drove by. They explained that they were planning to rework the sewer lines anyway, but had hoped to use some of the old line. They will have to dig a channel across the street in front of us and put in a new line to make it right.