2011-06-20_REVISION - C1981019

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 6/20/2011
• Doc Name: Revised 5/23/2011 Table of Contents
• Type & Sequence: PR3
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Collom -iii Revision Date: 5/20/11
Revision No.: PR -03
4.05.4
4.05.5
Stream Channel Diversions (Relocation of Streams) ..................... ..............................6
Sediment Control Measures ............................................................ ..............................6
4.05.6
Sedimentation Ponds ...................................................................... ..............................7
4.05.7
Discharge Structures ....................................................................... ..............................9
4.05.8
Acid - forming and Toxic - Forming Spoil ......................................... ..............................9
4.05.9
Post - Mining Impoundments ........................................................... ..............................9
4.05.10
Underground Mine Entry and Access Discharges ........................ ..............................1
l
4.05.11
Groundwater Protection ............................................................... ...............................
11
4.05.12
Protection of Groundwater Recharge Capacity ............................. .............................11
4.05.13
Surface and Groundwater Monitoring .......................................... ..............................1
l
4.05.14
— 4.05.18 Various Topics .................................................................................. .............................20
4.06
TOPSOIL ......................................................................................... .............................20
General Requirements ................................................................... .............................20
Removal......................................................................................... .............................20
Storage........................................................................................... .............................21
Redistribution................................................................................ .............................22
Reconditioning............................................................................... .............................24
4.07
SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS .................24
4.08
USE OF EXPLOSIVES ................................................................... .............................24
4.08.2
Pre -Blast Survey ............................................................................ .............................24
4.09
DISPOSAL OF EXCESS SPOIL .................................................... .............................25
4.10-4.12
DISPOSAL OF EXCESS SPOIL .................................................... .............................26
4.13
CONTEMPORANEOUS RECLAMATION ................................... .............................26
4.14
BACKFILLING AND GRADING .................................................. .............................28
4.14.1
4.14.2
General Requirements ................................................................... .............................28
General Grading Requirements ..................................................... .............................29
4.14.3
Covering Coal and Acid and Toxic Forming Materials ................. .............................29
4.14.4
Thin Overburden ............................................................................ .............................29
4.14.5
Thick Overburden .......................................................................... .............................29
4.14.6
Re- grading or Stabilizing Rills and Gullies ................................... .............................29
4.15
REVEGETATION REQUIREMENTS ........................................... .............................29
4.15.1 —
4.15.7 Revegetation Requirements, Various ............................................ .............................29
GeneralRequirements ................................................................... .............................29
VegetationMonitoring ................................................................... .............................30
Use of Introduced Species ............................................................. .............................30
Seedingand Planting ..................................................................... .............................30
Mulching and Other Soil Stabilizing Practices .............................. .............................30
Grazing.......................................................................................... .............................31
FieldTrials ..................................................................................... .............................31
4.15.7
DETERMINING REVEGETATION SUCCESS: GENERAL REQUIREMENTS AND
STANDARDS.................................................................................... ...............................
35
4.15.8
Revegetation Success Criteria ....................................................... .............................37
4.15.9
Cropland Revegetation Success ..................................................... .............................43
4.15.10
Previously Mined Land Revegetation Success Criteria ................. .............................43
4.15.11
Revegetation Sampling Methods and Statistical Demonstrations for Revegetation
Success Revegetation Community Mapping / Stratification ......... .............................43
4.16
POSTMINING LAND USE ............................................................. .............................48
4.16.1
General ........................................................................................... .............................48
4.16.2
Determining Use of Land .............................................................. .............................48
4.16.3
Alternative Land Uses ................................................................... .............................48
4.17
AIR RESOURCES PROTECTION ................................................... .............................48
Collom -iii Revision Date: 5/20/11
Revision No.: PR -03