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M-11 M' 4 1 11 <br />• <br />U.S. Standard <br />Sieve Size <br />Percent Passing <br />by Dry Weight <br />3 -inch <br />100 <br />2 -inch <br />75-100 <br />No. 200 <br />0-15 <br />Plasticity Index: 5 maximum <br />PART 3: EXECUTION <br />3.01 CLEARING AND GRUBBING: <br />A. Clearing and grubbing shall be done within the footprint of the limits of the construction area, as <br />delineated on the DRAWINGS. Clearing shall extend a maximum of 15 feet and a minimum of 10 <br />feet outside of the construction limits or as directed by MANAGER. Areas for clearing shall be <br />released to CONTRACTOR by MANAGER. No pioneering of roads across undisturbed areas shall <br />be allowed without prior approval of MANAGER. <br />B. No clearing shall be performed until written permission is given by MANAGER and until the <br />CONTRACTOR has provided construction staking for the proposed work. Clearing shall consist of <br />cutting brush to the ground level, removing such material, along with wood, rubbish, tree stumps, and <br />any other vegetation with roots in excess of 1 -inch diameter, and other deleterious materials, and <br />disposing of all such material in the accepted manner described below. <br />C. In areas designated to be stripped of unsuitable or objectionable material, said materials shall be <br />stripped to the full depth of organic or other unsuitable material as determined by MANAGER and <br />CERTIFYING ENGINEER, whichever is greater. <br />D. Stripped and grubbed vegetation shall be removed and disposed in stockpiles or other approved <br />methods in an area designated by MANAGER. <br />3.02 TOPSOIL REMOVAL: <br />Topsoil is defined as an acceptable growth medium as approved by MANAGER and CERTIFYING <br />ENGINEER that has no chemical or physical characteristics, which will exclude its use as such. <br />A. Stripping of the topsoil shall be done within the entire area of the stripping limits. <br />B. CONTRACTOR shall excavate and remove topsoil in a manner that will minimize contamination <br />with other soil horizons, and will take such measures as are necessary to ensure that the removal of <br />topsoil does not result in erosion or excessive sedimentation. <br />C. CONTRACTOR shall stockpile topsoil at locations designated by MANAGER. Stored topsoil <br />shall not be disturbed by mining, leaching operations, or construction activities, and shall be protected <br />from wind and water erosion, compaction, and contamination. <br />D. CONTRACTOR shall grade topsoil stockpiles to prevent erosion and ponding of precipitation in the <br />stockpile areas. The maximum topsoil stockpile height will be approved by MANAGER. The <br />CONTRACTOR shall protect stockpiled topsoil by an effective cover of non - noxious, quick - <br />growing, annual, and perennial plants, approved by MANAGER, which shall be seeded or planted <br />during the first appropriate growing season after removal. <br />Section 02200 <br />Earthworks <br />Page 5 of 18 September 3, 2008 <br />Revision 1 <br />S:\Projects\1125E CCV CQA \I - Tech Specs \02200.0.doc <br />