* No Spill Prevention Control and Countermeasure Plan.
* Accumulated oil in the secondary containment system(s) is not picked up and returned to storage or properly disposed of in accordance with the regulations.
* Walls of containment system are slightly eroded or have low areas.
* Visual tank inspections are not conducted periodically by appropriate personnel and/or inspections do not include tank foundation and supports.
* Inadequatae or no flowline maintenance program (includes: examination, corrosion protection, flowline replacement).