2004-10-18_REVISION - M1980244 (24)

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detrimental to the geomembrahe and piping, at no cost to CC&V. Off road haul Ruck traffic shall require 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 tnittimum of 120 inches for CAT 777 (or equivalent) of Low Volume Solution Collection FIIl 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 insRvct CONTRACTOR to remove Low Volume Solution Collection Fill to expose the geosynthetics. CONTRACTOR shall uncover, repau any observed damage of the underlying geosynthetics, in accordance with the repay requirements of Sections 02776.0 and 02777.0 of these SPECIFICATIONS, and recover, at no cost to CC&V. 9. CONTRACTOR shall place Law Volume Solution Collection Fill at a rate such that no single area of 350,000 squaze feet of geomembtane liner is exposed to ultraviolet light for more than 180 days. 10. CONTRACTOR shall provide close continuous monitoring at [he point of placement during the placement of [he 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 far 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 instmct CONTRACTOR to remove Low Volume Solution Collection Fill [o expose the geosynthetics. CONTRACTOR shall uncover, repair any observed damage of the underlying geosynthetics, in accordance with the repau requirements of Sections 02776.0 and 02777.0 of these SPECIFICATIONS and recover, at 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 I • 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 SRVCtwal Fill placement in the valley leach facility. Section 02200 Page 11 of 17 Mazch 22, 2000 Earthworks Golder Associates Revision? ]:~04fOH5\093-2110~[VC CERiIFICA]'fON REPORTPHASE NC OSA CEATMPE~DICa:SAPPENOIX E TECFRJICAL SPECIFlCATTONS102200R] DOC