If you operate tanks that are used for the storage of hazardous substance (e.g. CERCLA-classified) you
must provide a means of spill and leak prevention at all pumps and valves that control a liquid hazardous
substance. Comm 10 provides several options for meeting this requirement.
One option is to implement a pump and valve inspection,
maintenance and repair program that provides for a frequency of
inspection and scope of maintenance and repair. The frequency of
inspection must be based on a minimum of 5-years of actual
operating and service records, manufacturer’s recommendations or
records for similar operations.
As an alternative to this option all pumps and valves can be
installed in a secondary containment system. Secondary
containment must have sufficient capacity to contain all spills that
are likely to accumulate in the containment system. And the
secondary containment equipment must be inspected each day of
operation for the accumulation of liquid.