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check that the locking mechanisms are intact and workable. Any necessary repairs or replacements will be made during the quarterly inspection. 4.10 LANDFILL SETTLEMENT MONITORING AND MONUMENT MAINTENANCE 4.10.1 SURVEY RECORD Regulatory requirements dictate that, upon completion of closure construction activities, a survey record of the closed landfill be established and recorded with the title of the property, with the County Recorders office and copies be made available to the CIWMB, LEA and kept on-site at the administration offices. The survey of record will include the following information: • The date closure construction was completed; • Boundaries of the disposal area; • The location and telepthone number of where the closure and post -closure plans can be obtained; and • A statement that the future site use is restricted in accordance with the post - closure maintenance plan. - 4:10.2 SURVEY/SETTLEMENT MONUMENTS In accordance with 27 CCR, Section 20950 (d), survey/settlement monuments are to be established at the landfill so that facilities constructed during closure can be located and controls can be provided from which to monitor future _Landfill settlement. After completion of the final cover., settlement monuments will be set on the landfill in the disposal area as shown on Drawing 4 of the JTD. These monuments will be used to monitor settlement within the closed landfill and will allow for a determination of the actual settlement that occurs over the post -closure maintenance period. Additionally, 27 CCR, Section 21090 (e)(2) requires operators to produce iso - settlement maps every five years throughout the post -closure maintenance period or until settlement has ceased. Prior to an aerial survey, the monuments will be surveyed for horizontal and vertical control so that an accurate disposal area topographic map can be developed. Aerial "targets" will be placed over these monuments after the survey has been completed and an aerial Forward Landfill PCPCMP 4-5 L:\Allied\2000.193\Reports\FinaIPCPCMP:FL-sec4: 8/20/01 BRYAN A- STIRRAT & ASSOCIATES