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detrimental to the geomembrane and piping, at no cost to CC&V. Off road haul truck <br />traffic shall requve a minimum of 60 inches for Cat 773 (or equivalent) of Low Volume <br />Solution Collection Fill placed over the geomembrane and solution collection piping, <br />and a minimum of 120 inches for CAT 777 (or equivalent) of Low Volume Solution <br />Collection Fill placed over the geomembrane and solution collection piping. <br />7. When placing Low Volume Solution Collection Fill the maximum acceptable drop <br />height is 3 feet. <br />8. CONTRACTOR shall operate equipment in a manner that is protective of underlying <br />geosynthetics. If MANAGER or CERTIFYING ENGINEER suspects the <br />occurrence of any damage to the underlying geosynthe6cs, MANAGER will instruct <br />CONTRACTOR to remove Low Volume Solution Collection Fill to expose the <br />geosynthetics. CONTRACTOR shall uncover, repair any observed damage of the <br />underlying geosynthetics, in accordance with the repair requvements of Sections <br />02776.0 and 02777.0 of these SPECIFICATIONS, and recover, at no cost to CC& V. <br />9. CONTRACTOR shall place Low Volume Solution Collection Fill at a rn[e such that <br />no single area of 350,000 square feet of geomembrane liner is exposed to ultraviolet <br />light for more than 180 days. <br />]0. CONTRACTOR shall provide close continuous monitoring at the point of placement <br />during the placement of the Low Volume Solution Collection Fill over geosynthetics. <br />11. CONTRACTOR shall verify the final thickness of Low Volume Solution Collection <br />Fill to determine compliance with this SPECIFICATION. CONTRACTOR shall <br />record verification location, elevation, and thickness. CQA Monitor shall witness all <br />. verification measurements. CONTRACTOR will submit a method of verifying Low <br />Volume Solution Collection Fill depth to MANAGER for approval. Grnde markers <br />shall be placed on a 50 foot by 50 foot grid with additional points required for breaks in <br />grade. CONTRACTOR shall remove all grade markers under supervision of CQA <br />Monitor after verification measuremenzs have been approved by MANAGER and <br />CERTIFYING ENGINEER and will backfill holes with Low Volume Solution <br />Collection Fill. Areas with deficient thickness shad be reworked by CONTRACTOR, <br />until acceptable measurements aze obtained. If MANAGER or CERTIFYING <br />ENGINEER suspects [he occurrence of any damage to the underlying geosynthetics, <br />MANAGER will instruct CONTRACTOR to remove Low Volume Solution <br />Collection Fill to expose the geosynthetics. CONTRACTOR shall uncover, repair any <br />observed damage of the underlying geosynthetics, in accordance with the repay <br />requirements of Sections 02776.0 and 02777.0 of these SPECIFICATIONS and <br />recover, at no cost to CC& V. <br />12. CONTRACTOR will provide adequate illumination as approved by MANAGER, if <br />Low Volume Solution Collection Fill placement is carried out at night. A minimum of <br />2-foot candles measured at the synthetic liner, shall be used when Low Volume Solution <br />Collection Fill placement is carried out at night. <br />G. Soil Liner Fill <br />I. Soil Liner Fill shall be placed within the limits of the valley leach facility as shown on <br />the DRAWINGS and shall begin only after completion of all, or MANAGER and <br />CERTIFYING ENGINEER approved portion of, excavation and Structural Fill <br />placement in the valley leach facility. <br />Section 02200 Page 1 l of 17 March 22, 2000 <br />Earthworks Golder Associates Revision 7 <br />I:WN320)W40UlCER'IREP0802WPINDS4NPEb2200R).DOC <br />