Recently Susan Pastor with the U.S. Environmental Protection Agency wrote an article in the Spring 2012 edition of the Fox River Current titled “Latest Technology Guides Hydraulic Dredge”.  The article was about the use of a Real Time Kinematic Global Positioning System (RTK-GPS) to aid the dredge operator in removing contaminated sediments from the Fox River in Green Bay, WI.  In the article she writes about the use of the system and how it improves the accuracy in which a dredge operator can remove targeted sediments to designated depths.  These operators can view their progress in real time using pricey, high accuracy equipment.