You’ll need Perc Hole Excavation when planning to build a new home, add an addition, or install a new septic system on your property. Most counties in North and South Carolina require a successful percolation test before issuing a septic permit. If your soil drains too quickly or too slowly, adjustments to the septic design or site location may be required. A&E Landworx Septic & Excavation helps property owners complete this step quickly and correctly to avoid project delays.