2009-07-15_REVISION - M1980244 (26)

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Ad% ame • 1. Select Structural Fill shall be placed for miscellaneous site grading as required by the MANAGER and CERTIFYING ENGINEER. 2. CONTRACTOR shall condition Select Structural Fill to a moisture content that allows compaction to the required density and that results in a firm, unyielding surface capable of allowing the movement of vehicles and equipment over the surface without causing rutting or other deleterious effects. 3. CONTRACTOR shall place Select Structural Fill materials with less than 30 percent rock materials above 3/4-inch size in maximum 12-inch loose lifts, and compacted to 95 percent of maximum dry density (ASTM D698). 4. CONTRACTOR shall condition and place Select Structural Fill containing more than 30 percent rock materials above 3/4-inch size (rock fill) in maximum 12-inch loose lifts and compact by a method compaction technique. The compaction equipment shall consist of a minimum ten 10-ton (static drum weight) vibratory smooth-drum compactor. The number of passes shall be subject to CERTIFYING ENGINEER's approval, at no additional cost to CC&V. The method SPECIFICATIONS may be changed at any time, at the discretion of CERTIFYING ENGINEER, based upon changes in material characteristics, field conditions, and/or compaction equipment. D. Underdrain Fill 1. Underdrain Fill shall be placed in the Underdrains as shown in the DRAWINGS. • 2. CONTRACTOR shall condition Underdrain Fill that results in a firm, unyielding surface capable of allowing the movement of vehicles and equipment over the surface without causing rutting or other deleterious effects. 3. CONTRACTOR shall condition, place and compact Underdrain Fill by a method compaction technique. The compaction equipment shall consist of a minimum 10-ton (static drum weight) vibratory smooth-drum compactor. The number of passes and loose lift thickness shall be subject to CERTIFYING ENGINEER's approval, at no additional cost to CC&V. The method SPECIFICATIONS may be changed at any time, at the discretion of MANAGER, based upon changes in material characteristics, field conditions, and/or compaction equipment. 4. Provisions shall be made by CONTRACTOR for removal of oversize materials from fills, at no additional cost to CC&V. The MANAGER will minimize the amount of traffic over the Underdrain Fill. E. Leak Detection Fill Leak Detection Fill shall be placed in the Leak Detection Trenches as shown on the DRAWINGS. 2. CONTRACTOR shall condition Leak Detection Fill to allow a surface that does not cause rutting or other deleterious effects. • F. Low Volume Solution Collection Fill Section 02200 Earthworks Page 10 of 18 September 3, 2008 Revision 1 S:\Projects\1125 CC&V Phase 5 VLF\I - Tech Specs\Arequa IFC Specs\02200.r1.doc