2725 32ND AVE NE 2018-01-02 MF Import

SCHEDULE B: SMTTH .RAND LANDFILL 177065B PHASE 2 CLOSURE IMPROVEMENTS 3.4 WASTE STABILIZATION A. Place stabilization geotextile as specified in Section 02371, Geotextiles, over regraded waste surface at the limits shown on the Drawings, unless directed otherwise by the Engineer as specified herein. B. Stabilization limits shown are approximate and may be revised in the field by the Engineer based on actual conditions encountered and observations during proof -rolling of regarded waste surface. Contractor may propose alternate methods of waste stabilization for approval by the Engineer. 3.5 SOIL COVER PLACEMENT A. After completion of waste regrading and stabilization, place 1-foot thick soil cover layer over the existing waste surface. B. Place in lifts of 8-inch maximum compacted thickness. Compact lifts by track -walking into place with a minimum four passes with a Caterpillar D6M-LCP, or equal. Roll surface of final lift with a smooth -drum roller to form a stable base. C. Spread and dry excavated dike material or blend with itnpor; fill as required to improve workability and handling Liaracteristics of material for placement as soil cover. 3.6 ACCEPTANCE TESTING A. The Contractor shall determine in -place density and moisture content by any on or combination of the following methods: ASTM D2922, D1556, D2216, D3017, or other methods approved by the Engineer. Testing will be observed by Owner's Representative. B. Contractor shall use own qualified personnel or a qualified independent laboratory and certified technicians to perform materials sampling and field and laboratory testing in accordance with ASTM Standards. C. Perform testing on the following minimum schedule: 1. Import Fill for Access Ramps: Three per lift. 2. Standard Proctor (ASTM D698) laboratory density curves (five -point minimum) shall be submitted for each imported material. SEA/177065.A7.19 JULY 16, 2004 02316 6 FILL AND BACKFILL