_REVISION - M1980244 (30) - Laserfiche WebLink

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detrimental to the geomembrane and piping at no cost to CC&V. Offroad haul truck traffic shall requve a minimum of 60 inches for Cat 773 (or equivalent) of Low Volume • Solution Collection Fill placed over the geomembrane and solution collection piping, and a minimum of l20 inches for CAT 777 (or equivalent) of Low Volume Solution Collection Fill placed over the geomembrane and solution collection piping. 7. When placing Low Volume Solution Collection Fill the maximum acceptable drop height is 3 feet. 8. CONTRACTOR shall operate equipment in a manner that is protective of underlying geosynthetics. If MANAGER or CERTIFYING ENGINEER suspects the occurrence of any damage to the underlying geosynthetics, MANAGER will instruct CONTRACTOR to remove Low Volume Solution Collection Fill to expose the geosynthetics. CONTRACTOR shall uncover, repair any observed damage of the underlying geosynthetics, in accordance with the repair requvements of Sections 02776.0 and 02777.0 of these SPECIFICATIONS, and recover, a[ no cost to CC& V. 9. CONTRACTOR shall place Low Volume Solution Collection Fill at a rate such [hat no single azea of 350,000 squaze feet of geomembrane liner is exposed to ultraviolet light for more than 180 days. l0. CONTRACTOR shall provide close continuous monitoring a[ the point of placement during the placement of the Low Volume Solution Collection Fill over geosynthetics. 11. CONTRACTOR shall verify the final thickness of Low Volume Solution Collection Fill to determine compliance with this SPECIFICATION. CONTRACTOR shall record verification location, elevation, and thickness. CQA Monitor shall witness all • verification measurements. CONTRACTOR will submit a method of verifying Low Volume Solution Collection Fill depth to MANAGER for approval. Grade markers shall be placed on a 50 foot by 50 foot grid with additional points required for breaks in grade. CONTRACTOR shall remove all grade markers under supervision of CQA Monitor after verification measurements have been approved by MANAGER and CERTIFYING ENGINEER and will backfill holes with Low Volume Solution Collection Fill. Areas with deficient thickness shall be reworked by CONTRACTOR, until acceptable measurements are obtained. If MANAGER or CERTIFYING ENGINEER suspects the occurrence of any damage to the underlying geosynthetics, MANAGER will instruct CONTRACTOR [o remove Low Volume Solution Collection Fill to expose [he geosynthetics. CONTRACTOR shall uncover, repair any observed damage of the underlying geosynthetics, in accordance with the repair requirements of Sections 02776.0 and 02777.0 of these SPECIFICATIONS and recover, a[ no cost to CC&V. 12. CONTRACTOR will provide adequate illumination as approved by MANAGER, if Low Volume Solution Collection Fill placement is carried out at night. A minimum of 2-foot candles measured at the synthetic liner, shall be used when Low Volume Solution Collection Fill placement is carried out at night. G. Soil Liner Fill 1. Soil Liner Fill shall be placed within the limits of the valley leach facility as shown on the DRAWINGS and shall begin only after completion of all, or MANAGER and CERTIFYING ENGINEER approved portion of, excavation and Structural Fill . placement in the valley leach facility. Section 02200 Page 11 of 17 March 22, 2000 Earthworks Golder Associates Revision 7 D.~PHASEIV PSSA CERMPPENDIC~SUPPEhDn[ E TECFrtJiCAL SPECffICAT10NS~A?200Rl.DOC