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1 INTRODUCTION <br /> 1.1 Purpose <br /> This Construction Quality Assurance(CQA)Manual has been prepared for Forward,Inc.(Forward) <br /> by a Registered Civil Engineer in accordance with Title 27,California Code of Regulations(CCR), <br /> Division 2, Sections 20323 and 20324, titled "CQA Plan and CQA Requirements." This manual <br /> describes CQA procedures for construction of the liner and leachate collection and removal system <br /> (LCRS)for Waste Management Unit FU-08(WMU FU-08). The CQA Manual outlines the specific <br /> field and laboratory testing and monitoring procedures required to demonstrate that WMU FU-08 is <br /> constructed in accordance with Title 27 requirements. <br /> The southern portion of WMU FU-08 is designed to comply with the construction standards of Title <br /> 27 by using a composite liner and blanket LCRS. The northern portion of WMU FU-08 overlies the <br /> interim final cover for the Existing Austin Road Landfill. The interim final cover for the Existing <br /> Austin Road Landfill was constructed in the fall of 2002 and consists of a 2-ft thick foundation layer, <br /> 1-ft thick clay liner, and 1-ft thick vegetative layer. The vegetative layer(stripped of vegetation)in <br /> combination with the clay liner for the interim final cover will serve as the base liner for WMU FU- <br /> 08. A CQA Report for the interim final cover was submitted and approved by the RWQCB(Final <br /> Construction Quality Assurance Reportfor Closure Construction ofthe Austin Road Portion ofthe <br /> Forward Landfill,Vector Engineering,2002). Following placement of refuse in the northern portion <br /> of WMU FU-08, an interface liner will be placed on the south facing refuse slope. <br /> Following the completion of the work for WMU FU-08, the Quality Assurance/ Quality Control <br /> (QA/QC) Consultant will prepare a final CQA Report. The CQA Report shall be submitted to the <br /> Owner within 20 days of construction completion. The purpose of the CQA Report is to document <br /> that the materials and construction processes comply with the WMU FU-08 design and regulatory <br /> requirements. As-built drawings and a discussion on the refuse fill stability of WMU FU-08 based <br /> on the actual interface shear strength test results obtained during the CQA testing program shall also <br /> be included. <br /> 1.2 Project Description <br /> Lewis Engineering designed WMU FU-08 in accordance with Forward's Waste Discharge <br /> Requirements(WDR Order No. R5-2003-0049),as well as applicable state and federal regulations. <br /> The provisions of particular importance regarding the design are: <br /> • The WMU FU-08 lining and leachate collection and removal system(LCRS) design <br /> shall conform to construction standards of Title 27 by using a composite liner and <br /> blanket LCRS. <br /> • WMU FU-08 will be designed,operated, and maintained to prevent inundation, <br /> ® washout, erosion, and slope failure resulting from flooding caused by a 24-hour storm <br /> with a 1,000 year return period. <br /> Page 1 <br />