Tank Inspection Adviser

Continuous Release Detection (CRDM) Defined

  • CRDM detects a release of liquid through the inherent design. It does not require sensors or power to operate. Liquid releases can be visually detected by site personnel.  There are 3 common acceptable CRDM systems:
  1. Release prevention barrier including poly barriers & concrete pads
  2. Secondary Containment aboveground tanks (ASTs), which include double-wall ASTs & double-bottom ASTs
  3. Elevated AST with release prevention barriers

Does the tank have continuous release detection?

Select one below:

Yes, tank has Continuous Leak Detection No, tank does not have Continuous Leak Detection

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