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April 4,2012 <br /> Temporary plantings, geofabric drapes, and erosion-preventing diversions <br /> of surface water will be constructed as appropriate on temporary slopes. <br /> Regular operational and post-closure monitoring of erosion control <br /> structures and plantings will be done for a minimum of five years. <br /> Current Status: The stormwater erosion and control measures are being <br /> implemented as discussed above and in accordance with the JTD. <br /> n. 59 Forward 1993 (B.5) <br /> Assessment of groundwater levels in monitoring wells shall be initiated <br /> within 24 hours following an earthquake event having a Modified Mercalli <br /> intensity of V or greater at the landfill. This will allow the water level <br /> database to be adjusted or seismic variations. In the event that <br /> anomalous water level changes are noted, a series of water quality <br /> sampling and testing events shall be initiated by the applicant in <br /> coordination with the RWQCB to detect an changes in water quality that <br /> may signify subsurface adjustments in landfill cells. <br /> Current Status: An earthquake event with a modified Mercalli intensity of V <br /> or greater has not occurred at the landfill. <br /> o. 60 Forward 1993 (B.6) <br /> Benchmarks shall be established(these could utilize monitoring well top of <br /> casing elevations), which will allow for determinations of settlement/ <br /> consolidation of fill materials in closed sections of the landfill on an annual <br /> basis and following significant seismic events (Modified Mercalli Scale of V <br /> or above). In the event that changes are noted, the cause should be <br /> determined as should the effect on leachate collection and recovery <br /> systems. Repair liners and LCRS as necessary. In addition, remedial <br /> grading should be accomplished to restore the original cap's function to <br /> repel water and direct surface runoff. <br /> Current Status: Several benchmarks have been established at the site. An <br /> earthquake event with a modified Mercalli intensity of V or greater has not <br /> occurred at the landfill. <br /> p. 65 Austin 2000 (F1.a) <br /> A 4.3-acre detention basin will be constructed in the southwest comer of <br /> the project site, as depicted on the project plans (Beck 1993). <br /> Page 31 <br />