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Section 02200 <br />Earthworks <br />ame <br />If any moisture is allowed to collect under the geomembrane prior to or after final seaming <br />and softens the Soil Liner Fill, the geomembrane shall be removed and CONTRACTOR <br />shall recondition and recompact the Soil Liner Fill to meet all placement and trimming <br />SPECIFICATIONS, at no additional cost to CC &V. <br />15. CONTRACTOR shall remove all hubs and survey stakes in the Soil Liner Fill and backfill <br />all holes with MANAGER and CERTIFYING ENGINEER approved moisture - <br />conditioned Soil Liner Fill or bentonite. Compact with a Proctor hammer or other suitable <br />device that will achieve a kneading type of compaction and will achieve the required <br />density. <br />16. CONTRACTOR shall verify the final thickness of Soil Liner Fill to determine compliance <br />with this SPECIFICATION. Thickness verification shall be performed at a minimum <br />frequency of two measurements per acre using a soil -coring device, unless directed <br />otherwise by MANAGER. CONTRACTOR shall record as part of the as -built <br />documentation the location, elevation, and thickness of each Soil Liner Fill verification test. <br />CQA Monitor will witness all verification measurements. CONTRACTOR shall backfill <br />all holes with MANAGER and CERTIFYING ENGINEER approved moisture - <br />conditioned Soil Liner Fill compacted with a Proctor hammer or other suitable device that <br />will achieve a kneading type of compaction and will achieve the required density, or <br />bentonite. Areas with deficiencies shall be reworked by CONTRACTOR, until acceptable <br />measurements are obtained at no additional cost to CC &V. <br />17. If tests indicate the Work does not meet the requirements of the SPECIFICATIONS, <br />MANAGER and CERTIFYING ENGINEER will establish the extent of the <br />nonconforming area. The nonconforming area shall be reworked by CONTRACTOR <br />until acceptable test results are obtained at no additional cost to CC &V <br />18. Prior to any geosynthetics being placed on Soil Liner Fill, the area will be tested by CQA <br />Monitor. No geosynthetics will be allowed to be placed on frozen material, as defined in <br />Section 3.06, without the area in question being retested by the CQA Monitor. <br />H. Drain Cover Fill <br />1. Drain Cover Fill shall be placed over the geomembrane in the locations shown on the <br />DRAWINGS. <br />2. Prior to placing the Drain Cover Fill, CONTRACTOR shall verify by visual inspection <br />that the underlying geosynthetics are free of holes, tears, wrinkles, or foreign objects. <br />MANAGER and CERTIFYING ENGINEER will inspect the geosynthetic for wrinkles <br />prior to placement of Drain Cover Fill. As instructed by MANAGER, CONTRACTOR <br />shall "work out" wrinkles to the satisfaction of MANAGER and CERTIFYING <br />ENGINEER prior to placement of the Drain Cover Fill. In all cases, wrinkles shall not be <br />of a size that they could fold back on themselves. Wrinkles greater than one foot shall be <br />removed and repaired by the INSTALLER. <br />3. CONTRACTOR shall place Drain Cover Fill in a single 24 -inch loose lift. The tracked <br />equipment shall operate only over previously placed Drain Cover Fill. CONTRACTOR <br />shall not operate equipment directly on geosynthetics. Only a dozer with a ground pressure <br />not exceeding 8.7 psi can be used to place Drain Cover Fill. A CAT 12G motor grader, or <br />equivalent approved by CERTIFYING ENGINEER, can be used for Drain Cover Fill <br />final grading. Equipment used for placement will not be allowed to pivot on one track (i.e., <br />S: \Projects \1125G Squaw Gulch Valley Leach Facililty Design \I - Tech Specs \02200.r0.doc <br />Page 15 of 18 January 14, 2011 <br />Revision 0 <br />