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landforms. Sufficient topsoil would be placed so as to allow re-establishment of a native vegetation community on all disturbed areas to fulfill resource protection goals. Erosion control measures and drainage management will control site drainage and ensure that off-site water quality is not compromised. The park staff would approve all erosion control. Revegetation would consist of reseeding for two complete years, using a native seed mixture approved by the NPS. Planting of sagebrush maybe required at certain locations along the slope. The operator must monitor and control exotic species and noxious weeds between both seedings and for two years after the final seeding. Reclamation activities must commence no later than 6 months following the conclusion of mining and be completed within 2 years of commencement. All reclamation work would be monitored by park staff to ensure that the work conforms to the reclamation plan. All final reclamation design and procedures will be approved by the Superintendent. 2.li. Mitigation Mitigation under Alternative A consists of the provisions in the Special Use Permit issued in 2000. These are summarized in Table 2.1. Mitigation for Alternative B would include provisions included in the Plan of Operations submitted by the operator and additional mitigation stipulated as a condition of approval by the NPS or other entities. Mitigation for Alternative B is summarized in Tables 2.2 and 2.3. Table 2.2 lists the mitigation as specified by the operator and as specifically described in the operator's submittals to date, and Table 2.3 lists NPS- required or other agency-required mitigation. Table 2.1 - Alternative A -Mitigation Measures (Per the Existing Special Use Permit #IMR-CURE-5300-001) Mitigation Measures under Number Actions Reference . Alternative A, No Action 1 Drilling/Blasting Transportation, use, and storage of explosives must Permit Provision com I with all federal, state, and local re uirements. No. 13 2 Crushing Crusher shall not remain on site for more than 90 days Permit Provision unless a roved in writin b the Su erintendent. No. 10 3 Hauling All vehicle traffic will be confined to existing roads and Permit provision Materials access roads. No. 14 4 Waste All wastes will be disposed of promptly at an approved Permit Provision Dis oral location outside the National Recreation Area. No. 16 5 Waste No burning of wastes is permitted. Permit Provision Dis osal No. 16 6 Waste Chemical toilets or other selfcontaining sanitation Permit Provision Dis oral facilities are re uired. No. 16 7 Waste Any fuel or other contaminating substance spilled must Permit Provision Dis osal be cleaned u No. 76 8 Waste Superintendent must be notified of any spill exceeding 20 Permit Provision Dis osal allons. No. 16 9 Chemical use Use of pesticides is prohibited unless approved in writing Permit Provision b the Su erintendent. No. 17 10 Visitor safety Signage must be posted at access road gate during Permit Provision o erations to revent unauthorized ent b ark visitors. No. 18 Erosion and All sediment control structures must be inspected and Permit Provision 11 Sedimentation maintained regularly. No. 20 Control 12 Erosion and Sedimentation The Superintendent can require modifications or Permit Provision Control additions of sediment control structures if needed. No. 20 ZO