Duffield provided engineering services for the planning, design, bidding, administration, and inspection of improvements to a new, yet inoperable, WTP for the Town of Frankford. The Town of Frankford constructed a new WTP in 2005 that was inoperable upon start-up. After several years in which the WTP was idle and the subject of numerous, but fruitless suggested repairs and operational improvements, the State of Delaware and Town of Frankford contracted Duffield to design, bid, and administer the construction of improvements to the plant. Process design changes included installation of a greensand filter system for iron removal and a backwash storage and decant system. The WTP was successfully started in October 2010 and is currently in operation.