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SCHEDULE B- SMI "ISLAND LANDFILL <br />PHASE 2 CLOSURE IMPROVEMENTS <br />177065B <br />SECTION 02633 <br />HIGH DENSITY POLYETHYLENE MANHOLES <br />PART1 GENERAL <br />1.1 SUBMITTALS <br />A. Action Submittals: <br />1. Shop Drawings: Product data sheets for make and model. <br />2. Complete catalog information, descriptive literature, specifications, <br />construction drawings, and identification of materials of construction. <br />B. Informational Submittals: Submit results of manhole leakage testing. <br />PART PRODUCTS <br />2.1 HDPE MANHOLES <br />A. The manhole shall be manufactured by the fabrication of high density <br />polyethylene (HDPE pipe). The riser shall be made of HDPE plastic <br />compound meeting the requirements of Type III, Class C, Category 5, <br />Grade P34 as defined in ASTM D1248. The cell classification shall be <br />345434C per ASTM D3350. Alternate cell classifications are acceptable if <br />one or more of the six numbers in the cell classification are greater than the <br />minimum. Pipe shall be rated PE3408. <br />B. All welds shall be heat fused in accordance with manufacturer's <br />recommendations on equipment specifically designed for welding <br />thermoplastic sheets or extrusion welded by precertified welders. <br />PART 3 EXECUTION <br />3.1 INSTALLATION: <br />A. Manholes shall be handled and stored according to manufacturer's <br />recommendations and in such a manner as to ensure a sound undamaged <br />condition. <br />B. Excavation and backfilling operations shall be conducted in accordance with <br />Section 02315, Excavation, and Section 02320, Trench Backfill. <br />C. Joining of HDPE field piping to HDPE manhole pipe stubouts shall be done <br />by thermal butt or socket fusion, no solvent or adhesive welding shall be <br />SEA/177065.A7.19 JULY 16, 2004 <br />02633 1 HIGH DENSITY POLYETHYLENE <br />MANHOLES <br />