Exelon Nuclear's Peach Bottom Atomic Power Station has sucessfully compiled a wide range of internal and external corrosion and asset integrity data over the past 5 years. By combining Area Potential Earth Current (APEC) traditional soil corrosion testing guided wave ultrasonic testing and direct excavations for visual and ultrasonic evaluations the station was able to establish the key drivers vulnerabilities and priorities for its buried piping integrity management program.This paper will provide:• Overview of buried piping commodities conditions susceptibilities and risks for a nuclear power plant• Summary of Area Potential Earth Current (APEC) approach and results• Engineering application of results / interpretations into future inspection planning• Summary of guided wave and excavation results for subject piping correlating to APEC findingsResultsdemonstrate high confidence in using this integrated analytical approach towards characterizing internal and external corrosion susceptibility to inform future integrity decisions at minimum total costs.