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Section 02200 <br />Earthworks <br />amee <br />4. Provisions shall be made by CONTRACTOR for removal of oversize materials from fills, <br />at no additional cost to CC &V. <br />5. The MANAGER will minimize the amount of traffic over the Underdrain Fill. <br />E. Leak Detection Fill <br />1. Leak Detection Fill shall be placed in the Leak Detection Trenches as shown on the <br />DRAWINGS. <br />2. CONTRACTOR shall condition Leak Detection Fill to allow a surface that does not cause <br />rutting or other deleterious effects. <br />F. Low Volume Solution Collection Fill <br />1. Low Volume Solution Collection Fill shall be placed over the geomembrane in the locations <br />shown on the DRAWINGS. <br />2. CONTRACTOR shall condition Low Volume Solution Collection Fill to allow a surface <br />that does not cause rutting or other deleterious effects. <br />3. CONTRACTOR shall place Low Volume Solution Collection Fill around the Low Volume <br />Solution Collection Vertical Riser Pipes in maximum 12 -inch loose lifts and compact using <br />a hand operated vibratory plate compactor to the satisfaction of the MANAGER and <br />CERTIFYING ENGINEER. Low Volume Solution Collection Fill shall be worked under <br />the Low Volume Solution Collection Rise pipe haunches by hand to provide uniform <br />support of the pipe. <br />4. Prior to placing the Low Volume Solution Collection Fill, CONTRACTOR shall verify by <br />visual inspection that the underlying geosynthetics are free of holes, tears, wrinkles, or <br />foreign objects. MANAGER and CERTIFYING ENGINEER will inspect the <br />geosynthetic for wrinkles prior to placement of Low Volume Solution Collection Fill. As <br />instructed by MANAGER, CONTRACTOR shall "work out" wrinkles to the satisfaction <br />of MANAGER and CERTIFYING ENGINEER prior to placement of the Low Volume <br />Solution Collection Fill. In all cases, wrinkles shall not be of a size that they could fold back <br />on themselves. Wrinkles greater than one foot shall be removed and repaired by the <br />INSTALLER. <br />5. CONTRACTOR shall place Low Volume Solution Collection Fill in a single 36 -inch loose <br />lift. The tracked equipment shall operate only over previously placed Low Volume Solution <br />Collection Fill. CONTRACTOR shall not operate equipment directly on geosynthetics. <br />Only a dozer with a ground pressure not exceeding 14.7 psi can be used to place Low <br />Volume Solution Collection Fill. Equipment used for placement will not be allowed to pivot <br />on one track (i.e., no abrupt or sharp turns). There shall be no downhill placement on slopes <br />steeper than 4H:1 V. Material can be placed along contours if buttressed from below. <br />6. Rubber tired construction equipment shall not be allowed to travel over the geomembrane or <br />on top of Solution Collection piping unless a thickness of at least 45 inches of Low Volume <br />Solution Collection Fill has been placed over the geomembrane and on top of Solution <br />Collection piping. The CONTRACTOR will be required to demonstrate to the <br />MANAGER, DESIGN ENGINEER and CERTIFYING ENGINEER that the equipment <br />and procedures used are not detrimental to the geomembrane and piping, at no cost to <br />P. \Phase 5 OSA 2011 Cert Report\Appendices'Appendix E Specifications \02200s1 doc <br />Page 11 of 18 September 3, 2008 <br />Revision 1 <br />