2009-02-12_REVISION - M1977210 - Laserfiche WebLink

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PHASE 1 AMENDMENT IS NOW CONSIDERED RECLAIMED, BUT HAS NOT FORMALLY BEEN RELEASED. 1994 COST WAS $1,360.00 SUGGEST THAT AMOUNT BE CARRIED OVER TO 2009 RECALCULATION TOTAL PHASE 1 COST $1,360.00 Area WP: current status: 1. essentially all backfilling has been completed. (will include costs for an additional 10 feet for good measure.) 2. other than that, it is much like it was in 1994. Existing Pit area: surface area additional backfill depth volume of fill needed volume of fill needed cost/yd (just a lateral push from adjacent material) Backfilling cost 6.5 acres 25 feet 7078500 cu ft 262,167 cu yds $0.40 per cu yd $104,866.67 1994 amt = $175,450.00 All Area WP revegetation (includes existing pit area + rest of pit floor + storage pond area) Total area requiring revegetation 28 Topsoil depth 0.5 feet Topsoiling cost $0.50 per cu yd (an easy process on level ground) Topsoil volume needed 609840 cu ft Topsoil volume needed 22,587 cu yds Cost for topsoiling $11,293.33 1994 amt = $7,018.00 Cost of seed per acre $85.77 Cost of seed for total area $2,401.50 for 26.9 acres Cost of drilling $90.00 per acre Total cost for drill seeding $2,520.00 for 26.9 acres Total cost for revegetation $4,921.50 1994 amt = $1,517.06 TOTAL AREA WP RECLAMATION COSTS = $121,081.50 1994 amt = $183,985.06 TOTAL RECLAMATION COSTS FOR EXISTING DISTURBANCE AS OF JANUARY 2009: West Ridge $34,733.51 Area WP $121,081.50 TOTAL $155,815.01 NOTE: The 1994 costs were $273,721.10, but that included $5,193.11 for North Wall. The North Wall is accounted for below in expanded mining reclamation costs. For comparison, the equivalent area 1994 reclamation cost was $268,527.99. The decline in these costs is accounted for in all of the existing pit backfilling that has occurred since 1994.