Marc Natali, field supervisor and driller for C.S. Drilling in Naperville, Ill., uses 4.25-inch hollow stem augers with their Geoprobe 7822DT to install 2-inch monitoring wells at a golf course in suburban Chicago. The project was part of an ongoing subsurface investigation for arsenic. Special care was given to not damage the turf or landscaping at the golf course. Source: C.S. Drilling