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Reclamation Costs
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<br />Exhibit L
<br />Reclamation Costs
<br />In calculating the estimated reclamation costs, four cost models were run. Two were on Phase 1
<br />and Stage 1 only. The other two were on all of Phase 1. Each of the two models within each of the major
<br />model pazameters assumed different amounts of reclamation being completed. In one case, all the planned
<br />reclamation is completed. In the other case only half the planned reclamation is completed. Phase 2,
<br />because it is so faz in the future, was not included. Here are descriptions of some of the categories.
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<br />Bench Backtilling: ~ ~~-"~`~"
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<br />Final Benches: As defined in the plan, final benches are created at the limit of min.ng. ~J G' ~ ~ "% ~
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<br />fnrerrta[ Benches: Internal benches aze generally narrower and have more variable wall arSgles" 1Tie i
<br />length of internal benches was calculated by laying out fmal benches, measuring the length of those, and ~~ ~ ~G ~.
<br />then multiplying by 1.5 to account for narrower benches and more sloping backwalls. '" '
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<br />Bench Topsoiling and Seeding: This is based on the calculated area of the benches capable of being - ,~•
<br />topsoiled and seeded. ~. , ~•
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<br />Tree Planting (visible benches only): The azea of visible benches, derived from the visual impact ,,,, ,
<br />analysis done for the county special use permit, was estimated. Using a 40% survival rate and a desired
<br />average final tree density on the benches of 40 trees per acre, the number of tree seedlings needed was ~ ~ ~'
<br />calculated. A value of $3.00 per tree for purchase (State Forest Service) and planting was tsed.
<br />Bench Staining (visible benches only): This is difficult to estimate accurately. Within the visible portions
<br />of the quazry, the vertical surface area of the bench walls was calculated. Multiplying that ley 1.5 provides
<br />a roughness factor that increases the actual surface area beyond that which would occur if it was a smooth
<br />plane. Mottled patterns of stain produce the best effects and it was assumed that 60% of th~~ total surface
<br />area is stained. The cost per square foot is based on using Petmeon, using a 4:1 dilution, iccluding
<br />application.
<br />Quarry Floor: This is a straightforward calculation involving ripping, topsoiling, and seed,ng.
<br />Indirect Costs: Using an 18% indirect cost factor the cost of contractor profit, setup, and 1)MG
<br />administrative costs were added. 1
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<br />All land contigtuation calculations (areas, bench lengths, etc.) were based on models prep:ved in
<br />AutoCAD LT and AutoSketch.
<br />The selected reclamation cost model is an average of the two for all of Phase 1.
<br />The estimated reclamation cost, based upon this model, is $176,136.15 , 0 / ~ tb"v~ •'
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<br />The applicant recommends a bond amount of $I80,000. ~ ~ ~'D
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<br />(On the following pages are printouts of the two models.) ~ {~ - ~~~pi~'
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<br />Menzer Quarry Amendment Exhibit L Page 1
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