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4 ON-SITE DRAINAGE SYSTEM <br />Inspection, Maintenance, Repair, and Replacement <br />Components: Cleaning and repair: replaces all systems within the 30 year post-closure period. <br />Drainage System Inspection and Replacement ls 13,290.00$ 1 13,290$ <br />Annual Cost for Inspection and Drainage System Replacement 13,290$ <br />5 SECURITY <br />Components: Fencing repair and replacement within 30 year post-closure period. <br />Labor, Equipment, Material and Miscellaneous ls 3,773.00$ 1 3,773$ <br />Subtotal, Security 3,773$ <br />7 OTHER COSTS <br />5-Year Settlement Surveys <br />Components: Aerial Survey, Settlement evaluation, technical report <br />Topographic Survey ls 19,398.00$ 1 19,398$ <br />Annual Cost for 5-year Settlement Survey and Analysis 19,398$ <br />Inspections and Record Keeping <br />Components: Performing annual inspections and upkeep of post-closure records. <br />Inspect Landfill and Maintain Records hr.207.00$ 100 20,700$ <br />Subtotal, Settlement/erosion repairs, rodent control 20,700$ <br />Annual Cost, 1/5 4,140$ <br />Annual Water Supply & Sewerage month 227.00$ 12 2,724$ <br />Subtotal, Other Costs 26,262$ <br />Foothill Sanitary Landfill Prelim Closure-Postclosure Cost Estimate August_2025_Final.xlsx Page 12 of 15