2004-10-18_REVISION - M1980244 (24)

Home Browse Search

will achieve the required density, or bentonite. Areas with deficiencies shall be reworked by CONTRACTOR, until acceptable measurements aze obtained at no additional cost to CC&V. • 18. If tests indicate the Work does not meet the requirements of the SPECIFICATIONS, MANAGER and CERTIFYING ENGINEER will establish the extent of the nonconforming azea. The nonconforming area shall be reworked by CONTRACTOR until acceptable test results are obtained at no additional cost to CC&V 19. Prior to any geosynthetics being placed on Soil Liner Fill, the area will be tested by CQA Monitor. No geosynthetics will be allowed to be placed on frozen material, as defined in Section 3.06, without the area in question being retested by the CQA Monitor. H. Drain Cover FIlI 1. Drain Cover Fill shall be placed over the geomembrane in the locations shown on the DRAWINGS. 2. Prior to placing the Drain Cover Fill, CONTRACTOR shall verify by visual inspection that the underlying geosynthetics aze free of holes, tears, wrinkles, or foreign objects. MANAGER and CERTIFYING ENGINEER will inspect the geosynthetic for wrinkles prior to placement of Drain Cover FIlI. As instructed by MANAGER, CONTRACTOR shall "work out" wrinkles to the satisfaction of MANAGER and CERTIFYING ENGINEER prior to placement of the Drain Cover Fill. In all cases, wrinkles shall not be of a size that they could fold back on themselves. Wrinkles Beater than one foot shall be removed and repaued by the INSTALLER. 3. CONTRACTOR shall place Drain Cover Fill in a single 24-inch loose lift. The • trncked equipment shall operate only over previously-placed Drain Cover Fill. CONTRACTOR shall not opemte equipment duectly on geosynthetics. Only a dozer with a ground pressure not exceeding 8.7 psi can be used to place Drain Cover Fill. A CAT 12G motor grader, or equivalem approved by CERTIFYING ENGINEER, can be used for Drain Cover Fill final grading. Equipment used for placement will not be allowed to pivot on one track (i.e., no abrupt or sharp toms). There shall be no downhill placement on slopes steeper than 4H:1 V. Material can be placed along contours if buttressed from below: Motor graders shall not be allowed to make abrupt turns, brake suddenly, or dig blade in which results in the tires spinning on the Drnin Cover Fill surface. 4. Highway compatible Rubber tired construction equipment shall not be allowed to trnvel over the geomembrane or on top of Solution Collection piping unless a thickness of at least 45 inches of Drain Cover Fill has been placed over the geomembrane and on top of Solution Collection piping. The CONTRACTOR will be required to demonstrate to the MANAGER, DESIGN ENGINEER and CERTIFYING ENGINEER that the equipment and procedures used are not detrimental to the geomembrane and piping, at no cost to CC&V. Off road haul truck traffic shall require a minimum of 60 inches for Cat 773 (or equivalent) of Drain Cover FIlI placed over the geomembrane and solution collection piping, and a minimum of 120 inches for CAT 777 (or equivalent) of Aram Cover FID placed over the geomembrane and solution collection piping. 5. When placing Drain Cover FIlI the maximum acceptable drop height is 3 feet. I • 6. 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 geosynthe[ics, MANAGER will instruct CONTRACTOR to remove Drain Cover Fill to expose the geosynthetics. Section 02200 Page 14 of 17 Mazch 22, 2000 Earthworks Golder Associates Revision 7 ]:~dIOBSVHI-2l]MIVC CER'fQ~'ICATTON REPOR"MHASE NC OSACER"OAPPENO[CIl:S\APPENOIX 6'rECHMCAL SPEC4iCA'RONS\d2200R]DOC