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C <br />materials as needed to comply with the properties specified for subgrade, earthfill, <br />and vegetative products in these specifications. <br />C. All fill materials shall be free of organic and other deleterious materials as <br />determined by the Engineer. <br />2.02 EARTHFILL <br />A. Sources: On-site borrow areas as shown on the Construction Drawings. <br />B. Consists of clean, nonexpansive sand, silt, or clay soils or clay mixtures. <br />C. Maximum particle and aggregation size of 3 inches. Rock or rock fragments less <br />than 3 inches shall be distributed evenly through the fill. "Nesting" of rock or rock <br />fragments will not be permitted. <br />D. Maximum aggregation and particle size of %2 -inch when in contact with <br />geomembrane cover. <br />2.03 FINAL GRADING <br />A. Source: Final grading slopes' of the extension of closure cap and surrounding areas <br />are identified on the Construction Drawings. <br />B. Finish surface will be track walked prior to placement of hydroseeding. <br />C. Maximum particle size shall be 3 inches per ASTM D-422 and D-421 for areas to <br />receive earthfill. <br />SHAW ENV/RONMENTAL, /NC. <br />San Joaquin County — Extension of Cap Corcal Hollow Sanitary Landfill — CH Closure Cap Ext Proj_Technical Specs -4-19-12 Revl.DocRev. 0, 04/05/2012 <br />Site Earthwork <br />1 02200-5 <br />D. <br />Maximum aggregation at surface (as referenced in ASTM D-421) shall be 3 inches. <br />2.04 SUBGRADE PREPARATION LAYER <br />' <br />A. <br />Source: On-site slopes of existing excavation and borrow area identified on the <br />Construction Drawings, or off-site sources. <br />B. <br />Consist of sand, silt or clay soils or clay mixtures. <br />C. <br />Maximum particle size shall be 3 inches per ASTM D-422 and D-421 for areas to <br />receive earthfill. <br />D. <br />Maximum aggregation at surface (as referenced in ASTM D-421) shall be 3 inches. <br />E. <br />Maximum particle and aggregation size shall be 1 inch at the surface. <br />SHAW ENV/RONMENTAL, /NC. <br />San Joaquin County — Extension of Cap Corcal Hollow Sanitary Landfill — CH Closure Cap Ext Proj_Technical Specs -4-19-12 Revl.DocRev. 0, 04/05/2012 <br />Site Earthwork <br />1 02200-5 <br />