2011/06/15 Council Agenda Packet

5. Agreed Additional City Work on Landfill Pad. The City shall complete the work listed on Attachment B to this Fifth Amendment no later August 31, 2011. 6. Mill Site: Second Amendment to Amended KLB License. a. Amendment to Scope of Work Required Under Amended KLB License. City and Developer agree that the Amended KLB License, a copy of which is attached as Exhibit F to the Third Amendment, may be further amended by the parties thereto as follows: Subsections IV. 3. C(2) through C(5) of the Amended KLB License shall be deleted and replaced with the following sections with all work to be completed no later than August 31, 2011: C(2) KLB shall place on the Mill Site a minimum 2 -foot thick layer of Structural Fill or Site Grading Fill (approximately 50,000 cu yds +/-) or 2 -foot - thick layer of Cement Stabilized Soil to an elevation not less than on average two feet above the 100 -Year Flood Elevation. Structural Fill or Site Grading Fill shall be placed in maximum 12 -inch horizontal loose lifts and compacted to at least 95% of its maximum dry density as determined by test method ASTM D 1557 (Modified Proctor). The Cement -Stabilized Soil shall be evenly spread in 12 -inch maximum lifts and thoroughly mixed using appropriate soil -cement mixing equipment, as approved by the City, such that the amended soil may be compacted to at least 95% of the maximum dry density (Modified Proctor). C(3) Following completion of the work described in Subsections IV.3.C.(1) and (2), all material existing on the Mill Site must be cut down so that such material is about one (1) foot below the grade shown on the grading plan dated June 11, 2010, by Magnusson Klemencic Associates. C(4) After cutting down such excess material, exposed subgrade must be proof -rolled with. a loaded haul truck or scraper. GeoEngineers and/or OM must be notified prior to proof -rolling. Identified soft areas must be removed and replaced with suitable processed Structural Fill, as reasonably approved by Developer. C(5) After proof -rolling and removing or repairing any soft subgrade areas, the exposed subgrade must be compacted to at least 95 percent of the maximum dry density per ASTM D 1557. C(6) After such subgrade compaction, cap material must be placed on the subgrade and compacted to at least 95 percent of the maximum dry density per ASTM D 1557. The cap material must consist of 3 -inch minus screened recycled crushed concrete uniformly blended with the sand that is stockpiled on the site. Metal, wire, rebar and other deleterious debris must be removed from the cap fill material. After compaction, the cap material must be at least 12 inches thick and may be as thick as 16 inches. 6 -5-