Like many utilities, the Public Works Department of the City of Moline, Ill., is investigating new technology to address old problems. In fall 2013, the utility took on the challenge of cleaning a tuberculated water main and lining it in a single day, with only a 12-hour interruption in water service. Its choice of technology: a one-two punch offering the first U.S. demonstration of the Tomahawk, an air-driven abrasives cleaning technology, followed closely by 3M Company’s Scotchkote Liner 2400.Greg Swanson, utilities general manager with the City of Moline, has worked for the city since 1977. A self-described “old school” talent,
