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As-Built CQA Report for the Construction of Area 2A at the Foothill Sanitary Landfill <br /> San Joaquin County,California <br /> • 11.0 CERTIFICATION <br /> Construction of the Area 2A composite liner system for the Foothill Sanitary Landfill was started on <br /> May 11, 2015 and substantially completed on October 2, 2015 by R. J. Gordon Construction as <br /> General Contractor with Great Basin Environmental as their Geosynthetics Subcontractor. AES <br /> provided the CQA observation and testing services to the San Joaquin County Department of Public <br /> Works Solid Waste Division during the liner construction to verify compliance with the Plans, <br /> Specifications,the CQA Manual, and any design revisions/variances approved by Geosyntec (Design <br /> Firm) and the County. <br /> Our CQA services included: review of project documents, including Technical Specifications, <br /> Contract Drawings, and CQA Manual; review of MQC documentation for geosynthetics materials; <br /> review of conformance test results of geosynthetics; field observations and testing of all earthwork <br /> and geosynthetic components of liner system; and coordination of the CQA activities with County's <br /> Project Manager and field personnel. Our CQA services did not include direction of Contractor's <br /> activities. <br /> Based on the results of our CQA observation and testing services, and on our review of the MQC <br /> documentation certified by various geosynthetic manufacturers, AES hereby certifies (this <br /> certification represents a professional opinion of judgment) that the construction of Area 2A <br /> • composite liner system for the Foothill Sanitary Landfill was performed in accordance with the <br /> requirements of the Contract Drawings, Specifications and the CQA Manual, and in conformance <br /> with Title 40, Subtitle D CFR and Title 27 CCR. <br /> Prepared by: <br /> ADVANCED EARTH SCIENCES, INC. �CNAL <br /> Reviewed by: ` <br /> IL NCHAML iL RAUB <br /> a Z <br /> N ENGINEERING <br /> GEOLOGIST r 7 <br /> � F <br /> , <br /> Michael Raub, PG, CEG Kris lnani,•,,PEG1 <br /> CQA Manager ��FCAt-�F� Senior Princip ' <br /> Jude Ananthanathan, PE, GE QRoFESS��N <br /> Senior Engineer DRANO,ql <br /> ��v�PN F <br /> w w 2= m <br /> GE 2883 z T <br /> Thevachandran Shenthan, PhD, PE, G <br /> • Associate �oTECHN\oP �P <br /> gTFOF CAI\Fa <br /> PA14 Projects114-101(SJCDPW North County and Foothill)IFoothill CCA epo final ReporWoothill CQA Rport-Final.docx <br /> 38 <br /> f': <br />