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InServe Mechanical Integrity Group

Tanks built to API 650 and its predecessor API 12C that are in-service are covered by API-653. Tank foundation, bottom, shell, structure, roof, attached appurtenances, & nozzles are all required to be inspected. Inspections are required at recommended intervals to remain compliant with code and environmental regulations.

What is API 653 for ABOVE-GROUND Storage Tank Inspection?

API 653 applies to above-ground storage tanks that are built to API-650 or API 12C. The standard regulates how those tanks should be maintained, inspected, repaired, or altered. Not just anyone can do an API 653 inspection – regulations require they be administered by a certified inspector.

All storage tanks deteriorate over time. If they aren’t properly maintained and monitored, it’s just a matter of time before problems can occur. Regular inspections protect your equipment, your facility, your staff, and your community from the possibility of failure. Utilizing insight from inspections to improve safety and maintenance can also improve your storage tank’s lifespan.

Equipment Covered
  • Fixed Roof
  • Internal Floating Roof
  • Open Atmosphere
Services Offered
  • Fitness for Service (FFS) Evaluations
  • Risk-Based Inspection (RBI)
  • Inspection Work Plan (IWP) Development and execution
  • Formal External Inspection
  • Formal Internal Inspection
  • Floating Roof Seal Environmental Inspection
  • Ultrasonic Thickness Testing (UTT)
  • Automated Ultrasonic Thickness Testing (AUT)
  • Settlement Survey
  • Verticality Assessment
  • Corrosion Mapping
  • MFL Floor scan Inspection
  • Monthly and Annual Checklist Inspections
  • Leak Testing
  • Leak detection
  • Seal inspection
  • Post repair
  • Dike Survey
  • Spill Prevention Control and Countermeasure (SPCC) Plan Development and Review
  • Corrosion rate and remaining life evaluations

Every facility, organization, or agency has unique needs when it comes to inspections. We’ve answered a few of the most common questions about above ground storage tank inspection here, but our experts are eager to help if you have more.