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WMU D-99 Construction September 1999 <br /> Forward Landfill Job No.986011.02 <br /> • Prepared subgrade; <br /> • Geosynthetic clay liner (GCL); <br /> • 60-mil secondary HDPE geomembrane; <br /> • Geonet; <br /> • 60-mil primary HDPE geomembrane; and <br /> • Layer of protective soil on impoundment base. <br /> Vector provided CQA services to verify that proper construction techniques and <br /> procedures were used and to confirm that the facilities were constructed in general <br /> accordance with the project plans and specifications. The controlling documents for <br /> this project were as follows: <br /> 1. Bid Documents for Waste Management Unit D-99, Class II Leachate <br /> Impoundment, and Closure of Eastern Ash Pit and WMU Interim F. <br /> Forward, Inc. Landfill, by CH2M HILL, dated April 1999. <br /> 2. Construction Quality Assurance Manual for Waste Management Unit D- <br /> 99. Class II Leachate Impoundment. and Closure of Eastern Ash Pit and <br /> U Interim F Forward, Inc Landfill, by CH2M HILL, dated April 1999. <br /> 3. Waste Management Unit U) D-99, Class II Leachate Impoundment <br /> (WMU F North) and Closure of WMU Interim F (Existing Leachate <br /> Impoundment) and Eastern Ash Pit Construction Drawings, Forward Inc. <br /> Landfill, San Joaquin County. California by CH2M HILL dated April 1999. <br /> The Project Manager for Forward, Inc. was Curt Fujii. The Landfill Operations Manager <br /> at the site was Butch Stefani. The Design Review for WMU D-99, the Eastern Ash Pit <br /> Closure, and the Class II Leachate Impoundment was provided by Sangeeta Lewis of <br /> Lewis Engineering and Michael Yacyshyn of CH2M HILL. The Earthworks Contractor <br /> for this project was Guinn Construction Inc., and the geosynthetics installer was GSE, <br /> Inc. The geomembrane and geocomposite materials were supplied by GSE, the <br /> geosynthetic clay liner (GCL)was supplied by CETCO (as Bentomat), and Synthetic <br /> Industries, Inc supplied the geotextile. Regulatory oversite was provided by Steve <br /> Rosenbaum of the California Regional Water Quality Control Board, Central Valley <br /> 110 Region. <br /> Vector Engineering, Inc. - 12438 Loma Rica Dr.,#C • Grass Valley, CA - (530)272-2448 <br /> -2- <br />