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SCHEDULE B: SMITH .,L-AND LANDFILL <br />PHASE 2 CLOSURE 1WROVEMENTS <br />177065B <br />2. Types: <br />a. Preferred: "J" type seams. <br />b. Acceptable: Flat or butterfly seams. <br />3. Stitch Count: Minimum three to maximum seven stitches per inch. <br />4. Stitch Type: Double -thread chainstitch according to ASTM D6193. <br />5. Sewing Machines: Capable of penetrating four layers of geotextile. <br />6. Stitch Location: 2 inches from geotextile sheet edges, or more, if <br />necessary to develop required seam strength. <br />B. Unseamed Joints: Seams for the stabilization geotextile in trench and quarry <br />spalls application shall be overlapped a minimum of 12 inches. <br />3.3 WASTE STABILIZATION APPLICATIONS <br />A. This section is applicable to the installation of stabilization geotextile over the <br />re -graded waste surface at the system locations shown on the, Drawings. <br />B. The geotextile fabric shall be placed with the machine direction downslope. <br />Geotextile fabric used for waste stabilization applications shall have sewn <br />seams as specified in Article Joints. <br />C. Stabilization geotextile shall be manually pulled taut to remove wrinkles. <br />Weights or securing pins may be required to prevent wind uplift. <br />D. Construct interior and perimeter anchor trenches as shown on the Drawings. <br />3.4 TRENCII APPLICATIONS <br />A. This section is applicable to installation of stabilization geotextile in pipe <br />trenches for separation of trench stabilization material as shown on the <br />Drawings. <br />B. The geotextile shall be placed in the excavated trench prior to placement of <br />trench stabilization material. Fabric shall surround all aggregate and pipe <br />placed as the trench stabilization material. Place fabric in a way and with <br />sufficient slack for geotextile to contact trench bottom and sides fully when <br />trench is backfillcd. <br />C. In trenches, the geotextile shall be folded over the top of the trench <br />stabilization material to produce a minimum overlap of 12 inches. The fabric <br />shall then be covered with the subsequent course. <br />D. Geotextiles shall be overlapped a minimum of 12 inches in the direction of <br />Flow with the upstream fabric on top of the downstream fabric. <br />SEA/177065.A7.19 JULY 16, 2004 <br />02371 4 GEOTEXTILES <br />