Equipment: Vermeer® D36x50 and a StraightLine® 4″ Air Hammer System. Ground conditions: Solid formation with a combination of sandstone and caliche. Project Scope and Requirements: Installing a 10″ PVC pipe with certa-lock joints placed on-grade at a minus .020 to a minus .030 percent slope for gravity sewer mains. The bores varied in length from … Continued