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8 PRELIMINARY CLOSURE AND POSTCLOSURE MAINTENANCE PLAN 6.10.8.1. LANDFILL ri QS ins OVERVIE verview Based eFi the fill volume estimates pFeseRted OR Sertion 4, the Iandfill is expeGted to be foiled iR 2058. It is anticipated that final closure of the landfill will be completed within 2 years after reaching full capacity- Therefore the landfill will he Glesed ;n 2069 . PeFtions of the landfill The County assumes closure by evapotranspirative cover. Two years prior to final closure, the County will submit a Final Closure Plan, identifying the work included with closure and a schedule for implementation. Portions of the landfill may be closed in advance of reaching full capacity (partial closure) Two years prior to the anticipated date of partial closure, the County will submit a Partial Final Closure and Postclosure Maintenance Plans for the areas being proposed for closureed. The County may submit this final plan within 5 years of anticipated closure in lieu of submitting new or updated preliminary closure and postclosure plans. One year prior to closure bid documents and CQA Plan will be submitted. Within that year prior to closure, a contractor will be selected and the closure construction will start and end in one construction season. A CQA Plan will be submitted with the Final Closure/Postclosure Plan per Title 27 Sections 20323 and 20324. Subsequent to closure, a CQA report will be submitted with as-builts to support certification of closure. Approximately seven acres have received an evapotranspirative (ET) closure cap Acceptance of this area as closed is dependent on the results of the tests now underway. If the test pad shows that the actual permeation of water through the ET test area is less than or equal to the Foothill Sanitary Landfill Page 97 Public works/Solid Waste Joint Technical Document ____ T_, m� County of San Joaquin — Revised 7/30/10