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4 ON-SITE DRAINAGE SYSTEMInspection, Maintenance, Repair, and ReplacementComponents: Cleaning and repair: replaces all systems within the 30 year post-closure period. Drainage System Inspection and Replacement ls 13,290.00$ 113,290$ Annual Cost for Inspection and Drainage System Replacement 13,290$ 5SECURITYComponents: Fencing repair and replacement within 30 year post-closure period.Labor, Equipment, Material and Miscellaneous ls 3,773.00$ 1 3,773$ Subtotal, Security 3,773$ 7 OTHER COSTS5-Year Settlement SurveysComponents: Aerial Survey, Settlement evaluation, technical reportTopographic Survey ls 19,398.00$ 119,398$ Annual Cost for 5-year Settlement Survey and Analysis 19,398$ Inspections and Record KeepingComponents: Performing annual inspections and upkeep of post-closure records.Inspect Landfill and Maintain Records hr. 207.00$ 100 20,700$ Subtotal, Settlement/erosion repairs, rodent control20,700$ Annual Cost, 1/5 4,140$ Annual Water Supply & Sewerage month 227.00$ 12 2,724$ Subtotal, Other Costs 26,262$ Foothill Sanitary Landfill Prelim Closure-Postclosure Cost Estimate August_2025_Final.xlsx Page 12 of 15