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I INTRODUCTION 1.1 Purpose This Construction Quality Assurance(CQA)Manual has been prepared for Forward,Inc.(Forward) by a Registered Civil Engineer in accordance with Title 27, California Code of Regulations(CCR), Division 2, Sections 20323 and 20324, titled "CQA Plan and CQA Requirements." This manual describes CQA procedures for construction of the liner and leachate collection and removal system (LCRS) for Waste Management Unit FU-17 (WMU FU-17). WMU FU-17 is designed to comply with the construction standards of Title 27 by using a composite liner and blanket LCRS. The CQA Manual outlines the specific field and laboratory testing and monitoring procedures required to demonstrate that WMU FU-17 is constructed in accordance with Title 27 requirements. Following the completion of the work for WMU FU-17, the Quality Assurance/ Quality Control (QA/QC) Consultant will prepare a final CQA Report. The CQA Report shall be submitted to the Owner within 20 days of construction completion. The purpose of the CQA Report is to document that the materials and construction processes comply with the WMU FU-17 design and regulatory requirements. As-built drawings and a discussion on the refuse fill stability of WMU FU-17 based on the actual interface shear strength test results obtained during the CQA testing program shall also be included. 1.2 Project Description Lewis Engineering designed WMU FU-17 in accordance with Forward's Waste Discharge Requirements(WDR Order No. R5-2014-0006),as well as applicable state and federal regulations. The provisions of particular importance regarding the design are: • The WMU FU-17 lining and leachate collection and removal system (LCRS) design shall conform to construction standards of Title 27 by using a composite liner and blanket LCRS. • Leak location testing will be performed on the geomembrane on the base of the cell following placement of the operations layer WMU FU-17 will be constructed in the former Austin Road Landfill Borrow Pit and Expansion Area, directly southeast of the Former Austin Road Landfill and east of WMUs FU-13 and FU-14 (see Design and Construction Documents, Waste Management Unit FU-17,Forward Landfill,Lewis Engineering, January 2017). The liner will encompass approximately 8-acres and will extend approximately 1200 feet in the north-south dimension and 300 feet in the east-west dimension.The top of clay liner on the base of WMU FU-17 will be at approximately elevation 3-feet to 8-feet, which is about 30 to 38-feet below the surrounding ground surface. A composite lining system consisting of a 2-foot-thick clay liner overlain by a 60-mil, high-density polyethylene (HDPE) geomembrane, and LCRS consisting of 1 foot of granular drainage material will be constructed on the WMU FU-17 base. HDPE leachate tanks will be placed at the eastern edge of the WMU FU-17 Page 1