2011-08-09_REVISION - C1981019 (9)

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TABLE OF CONTENTS O 4.05.4 Stream Channel Diversions (Relocation of Streams) 6 4:05.5 Sediment Control Measures 6 4.05.6 Sedimentation Ponds 7 4.05.7 Discharge Structures 10 4.05.8 Acid - forming and Toxic - Forming Spoil 10 4.05.9 Post - Mining Impoundments 10 4.05.10 Underground Mine Entry and Access Discharges 12 4.05.11 Groundwater Protection 12 4.05.12 Protection of Groundwater Recharge Capacity 12 4.05.13 Surface and Groundwater Monitoring 12 4.05.14 — 4.05.18 Various Topics 21 4.06 TOPSOIL 21 General Requirements 21 Removal 21 Storage 22 Redistribution 23 Reconditioning 25 4.07 SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS 25 4.08 USE OF EXPLOSIVES 25 4.08.2 Pre -Blast Survey 25 4.09 DISPOSAL OF EXCESS SPOIL 26 4.10 — 4.12 DISPOSAL OF EXCESS SPOIL 27 4.13 CONTEMPORANEOUS RECLAMATION 27 4.14 BACKFILLING AND GRADING 29 4.14.1 General Requirements 29 • 4.14.2 General Grading Requirements 30 4.14.3 Covering Coal and Acid and Toxic Forming Materials 30 4.14.4 Thin Overburden 30 4.14.5 Thick Overburden 30 4.14.6 Re- grading or Stabilizing Rills and Gullies 30 4.15 REVEGETATION REQUIREMENTS 30 4.15.1 4.15.7 Revegetation Requirements, Various 30 General Requirements 30 Vegetation Monitoring 31 Use of Introduced Species 31 Seeding and Planting 31 Mulching and Other Soil Stabilizing Practices 31 Grazing 32 Field Trials 32 4.15.7 DETERMINING REVEGETATION SUCCESS: GENERAL REQUIREMENTS AND STANDARDS 36 4.15.8 Revegetation Success Criteria 38 4.15.9 Cropland Revegetation Success 44 4.15.10 Previously Mined Land Revegetation Success Criteria 44 4.15.11 Revegetation Sampling Methods and Statistical Demonstrations for Revegetation Success Revegetation Community Mapping / Stratification 44 4.16 POSTMINING LAND USE 49 4.16.1 General 49 4.16.2. Determining Use of Land 49 • 4.16.3. Alternative Land Uses 49 4..17 AIR RESOURCES PROTECTION 49 cottom -iii Revision Date: 8/5/11 Revision No.: PR -03