1981-08-12_REVISION - M1977184 (3)

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Mined Land Reclamation Board August 10, 1981 Page 3 Reclamation Timetable August 1981 Acres i Reclama- Industrial tion Site Inter- Period Revege- Back- mediate Plant Area (Years) Total Lake Slope tated filled Vegetation Road Site 1 3-5 13. 10 10 . 35 1 .03 2 . 75 - - - - 2 3-5 19.82 8.61 1 . 30 2 . 14 4 . 56 9 .07 - - 3 3-5 28 .63 23.62 2.05 5.01 - - - - 4 3-5 9.01 3. 95 0.44 1 . 31 3. 35 3 . 75 - - 5 3-5 24. 11 19 . 73 1 .67 4 . 38 - - - - Plant Perman- 8. 73 - - - - - - 8 . 73 Site ent Roads Perman- 5. 72 - - - - - 5. 72 ent Total Acres 109. 12 66 . 26 6.49 15. 59 7.91 12 . 82 5 .72 8 . 73 Technical Revision 2 The original plan for revegetation needs revision . The soil con- ditions are reviewed below and a revised revegetation plan is suggested. In addition, a contingency revegetation plan for the industrial area is recommended. Soils . The soils investigation in the approved permit indicates that about one foot of a silty topsoil covers the site . The 12 test holes indicate this condition in all but one place. Test Bore No. 6 shows about 3. 5 feet of silty clay with lime. This is a local condition much more common in mined-out areas (as of mid-1981) of the northwestern part of the affected land than the southeastern part where the test bore found a lime layer. The lime layer is a result of deposits placed during the processing of sugar beets . This lime forms layers measuring a