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Mr. Kevin Basso A - 2 - 0 21 May 2004 <br />synthetic clay liner (GCL) for the compacted clay component and a geocomposite drainage net for the <br />gravel blanket LCRS. The base liner system complies with the Title 27 California Code of <br />Regulations (CCR). The side -slope operations layer will be placed in 10 -foot lifts as the unit fills to <br />prevent damage to the side -slope liner. The side -slope liner is an engineered alternative that complies <br />with the facilities waste discharge requirements. <br />Where the side -slope liner overlies the Austin Road WMU cover approximately 4 feet of compacted <br />fill will be installed between the existing cover and the liner. The additional fill will bridge over any <br />voids that may develop due to waste settlement thus preventing damage to the FU -04 liner. <br />The following issues should be addressed in the final CQA report: <br />1. The Final Construction Quality Assurance Report for both waste management units must <br />include sufficient information for RWQCB staff to determine that the units were constructed in <br />general compliance with plans and with requirements. <br />2. Provide As -built drawings of the major components including the leachate collection system; <br />pipe layout, top of subgrade, top of gravel, top of operations layer, sump connections and a map <br />showing location of all CQA testing. <br />3. Copies of weekly construction reports should be FAXed to Regional Board staff each week. <br />Daily, weekly and other construction reports and change orders should be documented in the <br />final CQA report. <br />Staff finds that the design plans and specifications comply with Title 27 CCR and the facility's waste <br />discharge requirements and staff concurs with the Design Plan. <br />If you have any questions, please call me at (916) 464-4614. <br />ROSS D. ATKINSON <br />Associate Engineering Geologist <br />cc: Mr. Robert McClellan, San Joaquin County LEA, Stockton. <br />Mr. Keith Kennedy, CIMWB, Sacramento. <br />Ms. Sangeeta Lewis, Lewis Engineering, Piedmont. <br />Mr. Butch Stafani, Forward Inc. <br />Mr. Lochlin Caffey, Forward Inc. <br />Mr. Curt Fuji, Forward Inc. <br />RDA; C:\tnydocuments\FORWARD\DsnRptFU-04a <br />