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TECHNICAL SPECIFICATIONS <br />CONTRACTOR shall verify the final thickness of Drain Cover Fill to determine compliance with <br />this SPECIFICATION. CONTRACTOR shall record verification location, elevation, and <br />thickness. CQA MONITOR shall witness all verification measurements. CONTRACTOR will <br />submit a method of verifying Drain Cover Fill depth to MANAGER for approval. Grade markers <br />shall be placed on a 50 -by -50 -foot grid with additional points required for breaks in grade. <br />CONTRACTOR shall remove all grade markers under supervision of CQA MONITOR after <br />verification measurements have been approved by MANAGER and CERTIFYING ENGINEER <br />and will backfill holes with Drain Cover Fill. Areas with deficient thickness shall be reworked by <br />CONTRACTOR, until acceptable measurements are obtained. If MANAGER or CERTIFYING <br />ENGINEER suspects the occurrence of any damage to the underlying geosynthetics, MANAGER <br />will instruct CONTRACTOR to remove Drain Cover Fill to expose the geosynthetics. <br />CONTRACTOR shall uncover, repair any observed damage of the underlying geosynthetics, in <br />accordance with the repair requirements of Sections 02776.1 and 02776.2 of these <br />SPECIFICATIONS and recover, at no cost to CC &V. <br />9. CONTRACTOR will provide adequate illumination as approved by MANAGER, if Drain Cover <br />Fill placement is carried out at night. A minimum of 2 -foot candles measured at the synthetic liner <br />shall be used when Drain Cover Fill placement is carried out at night. <br />D. Soil Liner Fill <br />1. Soil Liner Fill shall be placed within the limits of the valley leach facility as shown on the <br />DRAWINGS and shall begin only after completion of all, or MANAGER and CERTIFYING <br />ENGINEER approved portion of, excavation and Structural Fill placement in the valley leach <br />each <br />facility. <br />2. CONTRACTOR shall process, place and compact the Soil Liner Fill to achieve a coefficient of <br />permeability of less than IXIO -6 cm /sec, measured according to ASTM Method D5084, Method D. <br />Any Soil Liner Fill not meeting the permeability specification shall be removed and replaced with <br />material_ meeting the permeability specification, at no additional cost to CC &V. <br />3. CONTRACTOR shall place and compact the Soil Liner Fill in loose lifts such that the compacted <br />lift thickness is a minimum of 12- inches. <br />4. CONTRACTOR shall compact the Soil Liner Fill to at least 95 percent of the maximum dry <br />density as determined by the Standard Proctor density test (ASTM D698). The moisture content <br />shall be within +3% to -2% of the optimum moisture content. Both moisture and density shall be <br />uniform throughout the lift. If the Soil Liner Fill cannot be conditioned to meet the placement <br />specifications, the material shall be removed and replaced with new Soil Liner Fill at the <br />CONTRACTOR's expense. The CONTRACTOR shall reduce the clod size of the soil liner fill <br />to a size that is acceptable to the CERTIFYING ENGINEER, the method by which will be <br />approved by CERTIFYING ENGINEER and MANAGER prior to implementation. <br />5. The moisture content of the Soil Liner Fill shall be uniform throughout prior to and during <br />compaction of the material. CONTRACTOR shall be responsible for meeting moisture content <br />and compaction SPECIFICATIONS. If the Soil Liner Fill cannot be conditioned to meet the <br />placement SPECIFICATIONS, the material shall be removed and replaced with new Soil Liner Fill <br />at no additional cost to CC &V. MANAGER may require CONTRACTOR to moisture condition <br />Soil Liner Fill at stockpile at least 24 hours prior to the Soil Liner Fill being placed. <br />6. CONTRACTOR shall place Soil Liner Fill to form a continuous monolithic material. If a lift of <br />compacted Soil Liner Fill dries out during placement operations, CONTRACTOR shall scarify, <br />moisture condition the dry soil and recompact the lift. If a lift of compacted Soil Liner Fill becomes <br />overly wet due to precipitation or over watering, CONTRACTOR shall allow the wet soil to dry to <br />the specified moisture content range before recompaction of fill and placement of geosynthetic <br />materials. <br />Earthworks September 24, 2013 <br />02200.0.1 -7 Revision 1 <br />S U'rojects \1550 - CC &V Field Spt CQA PSES Bldg \8 0 Project Engineering and Design \8 2 SpeaficationsTSES Pipe Rack Liner Extension SpecificanonsUndrvrdual Specification <br />Sections \02200 0 RI Earthworks docx <br />