Above-Ground Storage Tank Inspection Services – Toledo, Ohio

STONE provided an inspection of a 9,600-gallon (10 feet in diameter, 20 feet tall on four legs) above-ground storage tank (AST) that the client used to collect and store a flammable fluid byproduct of their cleaning process.  The byproduct is classified as a D001 material (ignitable hazardous waste). The AST had been installed in 1996 and was being required by the Ohio Environmental Protection Agency (OEPA) to obtain a written assessment, reviewed and certified by a qualified professional engineer attesting to the system’s structural integrity and suitability for storing and treating hazardous waste.

As part of the project, STONE completed the following:

 

  • General Tank specifications, construction, release detection methods, and spill control measures;
  • Ultrasonic thickness readings of the exterior of the shell, bottom, roof, and at each nozzle and reinforcement pad;
  • Visual observations of the tank and containment pad to ascertain any improper tilting or settling in the ground.
  • Structural Analysis via review of original tank drawings and the structural design of the tank including skin thickness, support members, bearing plates, and concrete pad to determine the existing structural integrity of the tank in accordance with the Ohio Building Code.

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