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Re onset <br />1. Characteristics of the fill for the Northern No. 1 Haul Road - The <br />• Northern No 1 (FF) Haul Road was an existing structure which was modified to <br />meet Class I Haul Road Standards. the design specifications for the road <br />can be found at exhibit C-13 (see question ~~2 immediately below). <br />The road did require some additional fill material which was obtained from <br />the Wrthern No. 1 mine site construction. All fill was from the local <br />area. (The balance of the question deals with the P and J seams and is not <br />covered here). <br />2. Exhibit C~ is being resubmitted with charges to reflect Northern's <br />present mining plans and a proper certification. It can be located in >this <br />Pppendix . Exhibit C-13 has been updated and certified and is located _ <br />in this submission. C-14 was submitted only for location <br />of culverts and that information can be found in C-13 so C-14 should be <br />disregarded. <br />3. Not applicable - pertains to the Northern No. 2 and No. 3 Mines. <br />4. Raw data is given for roads on the cross sections and computerized <br />digitized points contained in Northern Coal Company's "Rienau No. 2 Mine <br />Increased Production hbdification" delivered to CMLR on April 10, 1981. If <br />you should desire any further information on this plan, please advise us. <br />5. The refuse disposal area was constructed in accordance with permanent <br />program perform ante standards pursuant to CMLR approval of a modification of <br />• the Northern No. 1 Mine Permit on Cocember 17, 1980. <br />6. Not applicable - Northern is no longer seeking approval of the Milk <br />Creek Loadout during this five year permit term. <br />7. The-Rienau No. 2 mine has one access road which begins at State Highway <br />13/789, leads to the bathhouse-office parking lot (330 feet), switches back <br />in a simple loop (230 feet) and terminates at the portal bench (about 70 <br />feet). This road was in existance when Northern became the operator of this <br />mine in 1977. The construction techniques are unknown. <br />The Northern No. 1 Mine haul road is the only other road involving detailed <br />construction methods. The haul road was designed by International <br />Engineering Company, Inc. for Northern in conformance with 30CFR817.150 <br />through 817.153 (page C 1i4 Volume I June 1980 submission), and all work was <br />done in accordance with Colorado Division of Highways M 8 S Standards, <br />January 1980 and all compaction met AASHID T99. <br />8. The cross-sections depicting the final surface configuration of the <br />Rienau No. 2 Mine are contained in Northern Coal Company's "Rienau No. 2 <br />Mine Increased Production Modification" delivered to CMLR on April 10, <br />1981. It should be noted that no haul road exists for this mine. The <br />Northern No. 1 cross~ections are shown in Volume VII, Chapter M, Page M-4. <br />Cross-sections on 100 foot itervals are located in Exhibit M-1. At this <br />point in time the surface owner of the Northern No. 1 Mine leased acreage <br />• <br />2 <br />