The drilling specification called for a combination of sonic and air rotary drilling at a diameter of 250mm with the installation of 168mm 316 stainless steel screens.
The project required drilling into waste emplacement areas to a depths ranging from 70 m to 117 m at the Duralie Coal Mine Site NSW. The previous drilling contractor was unable to reach required depths
Star Drilling spent three years geotechnical drilling for the Melbourne Airport Rail Link. A lot of drilling occurred on or under the E.J. Whitten Rail Bridge.