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• B. Reclamation Tasks 1. Final Pit Backfillinc (Year 31 Page 4.B-2 of the application indicates that the backfill volume required is 200 cubic yards of material per foot of pit length, as rer Exhibit 4.8-6. E::hibit 4.8-6 could not be located in any cf the Divisions copies of the .rain application or renewal application. In order to verify the applicants volume estimates, E;:hibits 3.3-3 and 3.3-4 were used to calculate and average pit cross-=_ectional areas, and E;:hibit 4.8-1 was used to determine nit length. Using the 3rd cut pit cross-sectional areas from Section A-A' and H-B', an average figure cf 52^.67 cubic yards per lineal foot of pit was calculated (depth measured from bottom of lowermost mined coal seam to the projected reclaimed surface line, width measured from highwa'_l to closest ungraded spoil slope). This figure differs substantially from the 200 cubic yards of material per linear foot of pit provided in the renewal application. Total pit length, estimated at 10,800 feet, was taken from Exhibit 4.8-_. The applicant needs to e::plain this apparent discrepancy i:_ the volume calculations. If E::hibits 3.3-3 and 3.3-4 are representative of typical pit dimensions, the volume figures pre=_ente3 ir. the application. will need to be revised • accordingl}'. THE EXHIBITS USED BY TY.E REVIE'r1ER ARE NOT APPROPRIATE TO USE FDR DETERMINING THE FINAL PIT BACiCFILLING IN THE EVENT OF A BOND FORFEITURE. THE RECLAIMED SURFACE CONTOURS SHOWN ON EXHIBITS 3.3-3 AND 3-3.4 DO NOT RL'PRESENT THE FINAL SURFACE CONFIGURATI:N THP.T WOULD BE ACHIEVED 0`JER THE LAST PIT MINED. IN ORDER TO DETERMINE THE YARDAGE 'NECESSARY TO RECLAIM THE FINAL PIT EXHIBIT 4.8-5 MUST BE USED. EXY.IBIT 4.9-5 IS ENCLOSED FOR THE REVIEWERS CONVEPIIENCE AND MAY HE IAISERTED DIRECTLY INTO THE PERMIT. 2. Revecetat•ion The applicant should revise the hourly farm tractor cost to reflect current (1986) rates for such equipment. Rental rates for each attachment (contour furrow, drill, fertilizer spreader) should be added to the basic hourly tractor cost. A REVISED SET OF BONDING CALCULATIONS ARE ENCLOSED WITH THE APPROPRIATE COST CHANGES AS REOUE5TED. THE ENTIRE SECTION 4.8 HAS BEEN REPRODUCED AND MAY PE SUE5TITUTED DIRECTLY INTO THE PERMIT FOR THE EXISTING SECTION 4.9. The current open shop labor rate for a farm tractor operator, • as per the Department of Labor/Department of Highway's current schedule is 13.69 per hour. SEE ABOVE RESPONSE.