PERMFILE58842

• Permit No: C1981020A
• IBM Index Class Name: Permit File
• Doc Date: 5/23/2007
• Section_Exhibit Name: Table of Contents
• Media Type: D
• Archive: Yes

TOC - 4
4.5.3.2 Flood Flows .................................................................... 4-28
4.5.3.2.1 Recorded Flows ................................................ 4-28
4.5.3.2.2 Estimated Floods .............................................. 4-29
4.5.3.2.3 Accuracy Of Flood Estimates ............................ 4-31
4.5.3.2.4 Flood Flows And Watershed Size ...................... 4-32
4.5.3.3 Flood Hazards ................................................................. 4-33
4.5.3.3.1 General ............................................................. 4-33
4.5.3.3.2 Road Crossings ................................................. 4-33
4.5.3.3.3 Munger Mine Portal ......................................... 4-34
4.5.3.4 Water Quality .................................................................. 4-37
4.5.3.4.1 East Salt Creek Neaz Mack ............................... 4-37
4.5.3.4.2 East Salt Creek In The Vicinity Of Munger Creek 4-38
4.5.3.4.3 Munger Creek .................................................. 4-39
4,5.3.5 Erosion And Sedimentation ............................................. 4-40
4.6 WII.DLIFE INVENTORY ..................................................................... 4-41
4.6.1 Introduction ................................................................................ 4-41
4.6.2 Lazge Mammals ............................................................................ 4-42
4.6.3 Medium Sized Animals ................................................................. 4-46
4.6.4 Small Mammals ............................................................................ 4-47
4.6.5 Bird Studies ................................................................................. 4-48
4.6.6 Reptiles And Amphibians .............................................................. 4-51
4.6.7 Aquatic Resources ....................................................................... 4-51
4.6.8 Threatened And Endangered Species ............................................ 4-51
4.6.9 Site Utilization ............................................................................. 4-52
4.6.10 Wildlife Plan ................................................................................. 4-53
4.7 SOIL S INVENTORY ............................................................................ 4-59
4.7.1 Introduction .................................................................................. 4-59
4.7.2 Methodology ............................................................................... 4-59
4.7.3 Soil Series Description ................................................................. 4-61
4.7.3.1 Glendive ......................................................................... 4-61
4.7.3.2 Havre .............................................................................. 4-61
4.7.3.3 Nihill ............................................................................... 4-63
4.7.3.4 Rivra Variant .................................................................. 4-66
4.7.4 Map Unit Descriptions .................................................................. 4-68
4.7.4.1 Aw -Alluvial Lands, 0 To 5 Percent Slopes .................. 4-68
4,7.4.2 DI -Disturbed Land, Variable Slopes ............................. 4-70
4,7.4.3 Gdab - Glendive Sandy Loam, 0 To 8 Percent Slopes...... 4-73
4,7.4.4 Gu - Gullied Land, Variable Slopes ................................ 4-74
4.7.4.5 Hrab -Havre Loam, 0 To 6 Percent Slopes .................. 4-75
4.7.4.6 Hvab -Havre Loam, 2 To 8 Percent Slopes .................... 4-76
4.7.4.7 Nibe - Nihill Loam, 5 To 35 Percent Slopes .................... 4-77
4.7.4.8 Riab - Rivra Gravelly Loam Variant ,0 To 8 Percent Slopes 4-79
4.7.4.9 Trde - Torrinrtbrntc -Ruck Outcrs~ Cncgtilez4
I S To 65 Percent Slopes .................................................. 4-80
M" Volume I Original Permit 9 - 3 - 96