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C�7 <br />0 <br />April 8, 2014 <br />down to reduce soil spillage on paved roads and wind-blown dust. <br />Relocation of Littlejohns Creek could lessen the sedimentation potential to <br />the creek. <br />Completed cells will be stabilized by the planting and maintenance of <br />drought -resistant grasses. This will inhibit wind and water erosion and <br />maximize the fertility of the soil in order to facilitate revegetation. <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 />Page 31 <br />