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3. There should be a geotechnical assessment of the granite highwalls. <br /> Response: Exhibit 6.5 of Amendment 3 contains this geotechnical assessment of the granite highwalls. <br /> 4. The geotechnical properties of the granite need to be specified. <br /> Response: Exhibit 6.5 of Amendment 3 contains the geotechnical properties of the granite. <br /> 5. There should be a commitment to material property and compaction testing and geotechnical <br /> monitoring. <br /> Response:The permit application has been revised to include material specifications and testing <br /> requirements. It also includes specifications for geotechnical monitoring. <br /> 6. There should be a commitment to material property and compaction testing and geotechnical <br /> monitoring.The permit does not include enough topsoil. <br /> Response:The permit application has been revised to include material specifications and testing <br /> requirements. It also includes specifications for geotechnical monitoring.Topsoil is placed in a loose <br /> manner to promote root growth. The topsoil volume required has been revised based on the total area <br /> of disturbance, which includes roads and stockpiles. <br /> 7. Vegetation will be difficult to establish on 2.25:1 slopes. <br /> Response:The slope will be revegetated as it is placed, and this contemporaneous reclamation will <br /> allow Castle to demonstrate the revegetation methods are successful. <br /> 8. The water management system is difficult to understand. <br /> Response:The maps in Exhibit G have been revised to include flow arrows and to improve the legibility <br /> of the map. Details on the channels are included in the Exhibit G text,and in the typical cross-sections <br /> included in Exhibit G-2. <br /> 9. The reclamation plan does not include success standards for vegetation or acreages associated with <br /> the vegetation. <br /> Response:The reclamation plan has been revised to include acreages associated with each vegetation <br /> type. Exhibit E specifies a 70%survival rate. <br /> 10. Same as Comment 9. <br /> Response: Same as Comment 9. <br /> 11. There are no topsoil stockpile protection methods. <br /> Pikeview Quarry Amendment 4, Response to Adequacy <br /> December 11,2019 <br />