ABSTRACT An effective ILI program shall provide a prioritized excavation response plan to address anomalies identified as being of particular concern. Locations that show potential for imminent or short term failure are prioritized under Phase 1 and Phase 2 responses respectively while anomalies that could grow to become a severe risk for pipeline integrity prior to the next ILI are prioritized as Phase 3 excavations. This paper describes the use of ECDA principles in prioritizing Phase 3 anomalies on a gas pipeline in northern Ontario resulting in a more effective excavation program. An ECDA type of prioritization criterion based on the results of an integrated CIPS/DCVG survey in conjunction with the results of Phase 1 and Phase 2 digs is proposed. Keywords: ILI ECDA CIPS DCVG Prior History of Corrosion.