2011-10-06_REVISION - M1980244 (3)

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Section 02200 Earthworks ame B. No clearing shall be performed until written permission is given by MANAGER and until the CONTRACTOR has provided construction staking for the proposed work. Clearing shall consist of cutting brush to the ground level, removing such material, along with wood, rubbish, tree stumps, and any other vegetation with roots in excess of 1 -inch diameter, and other deleterious materials, and disposing of all such material in the accepted manner described below. C. In areas designated to be stripped of unsuitable or objectionable material, said materials shall be stripped to the full depth of organic or other unsuitable material as determined by MANAGER and CERTIFYING ENGINEER, whichever is greater. D. Stripped and grubbed vegetation shall be removed and disposed in stockpiles or other approved methods in an area designated by MANAGER. 3.02 TOPSOIL REMOVAL: Topsoil is defined as an acceptable growth medium as approved by MANAGER and CERTIFYING ENGINEER that has no chemical or physical characteristics, which will exclude its use as such. A. Stripping of the topsoil shall be done within the entire area of the stripping limits. B. CONTRACTOR shall excavate and remove topsoil in a manner that will minimize contamination with other soil horizons, and will take such measures as are necessary to ensure that the removal of topsoil does not result in erosion or excessive sedimentation. C. CONTRACTOR shall stockpile topsoil at locations designated by MANAGER. Stored topsoil shall not be disturbed by mining, leaching operations, or construction activities, and shall be protected from wind and water erosion, compaction, and contamination. D. CONTRACTOR shall grade topsoil stockpiles to prevent erosion and ponding of precipitation in the stockpile areas. The maximum topsoil stockpile height will be approved by MANAGER. The CONTRACTOR shall protect stockpiled topsoil by an effective cover of non - noxious, quick - growing, annual, and perennial plants, approved by MANAGER, which shall be seeded or planted during the first appropriate growing season after removal. 3.03 WASTE REMOVAL: Waste material is defined as material too wet, too dry, frozen or containing ice or snow, containing organic or other deleterious matter, having poor characteristics of grading or compaction, having other characteristics that may result in undesirable settlement or other movement of the fill, or within the fill, or otherwise not meeting the requirements of the SPECIFICATIONS, provided that this definition permits drying, water, and any other processing or reprocessing to make the material stable and suitable prior to incorporating it into the fill as permitted in the SPECIFICATIONS or by the MANAGER and CERTIFYING ENGINEER. A. CONTRACTOR shall excavate and remove waste in a manner that will minimize contamination with other soil horizons. B. CONTRACTOR shall stockpile removed waste at locations designated by MANAGER. S: \Projects \1125G Squaw Gulch Valley Leach Facililty Design \I - Tech Specs \02200.r0.doc Page 6 of 18 January 14, 2011 Revision 0