Vertical Tank Installation Manual
Split Backfill Instructions
Recommended Practices When Choosing Multiple Backfill Materials Most installations use 100% Primary Backfill when installing tanks. Some projects may be eligible to use less than 100% Primary Backfill (as described in the Installation Manual and Operating Guidelines) with another material (“Secondary Backfill”). These installations are referred to as “Split Backfill” Installations. Refer to the “Do” […]