What are the differences among Types A, B, C, and D suspension and abandonment costs?
Type A – Suspension and abandonment cost estimates fully meet Directive 001. These estimates must be based on the full current day estimate to suspend, abandon, remediate and reclaim based upon third-party unit costs, with no credit applied for salvage value. These estimates are based on sites-specific information including on-site inspections, as built construction diagrams, materials inventory, and intrusive environmental assessments of contaminant issues. These types of assessments may be based solely on phase I environmental site assessments only where a complete historical and current day assessments clearly indicates that assessment of contaminant and similar issues is not warranted. Type B – An estimate based on partial site-specific construction or environmental data. May include assessment based on plot plans rather than as-built construction diagrams, or partially completed intrusive environmental assessments rather than full contaminant delineation and characterization. A co
