Case Study

Advanced Aboveground Storage Tank Inspections – In-Service Robotics

This paper describes the tank inspection requirements (such as New Source Performance Standards
[NSPS], 40 CFR 60), conventional inspection techniques (out-of-service, manual, confined space
entry, and visual), advanced inspection technologies (in-service robotics), benefits derived from using
these advanced technologies, and the status of approval of these technologies by regulatory agencies.
The authors also review the unique challenges and implementation circumstances associated with
advanced inspection technologies. Finally, the authors present a pilot study currently in progress for
the application of advanced inspection technologies to an Internal Floating Roof (IFR) tank subject to
NSPS Subpart Kb (Standards of Performance for Volatile Organic Liquid Storage Vessels)
requirements.