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EXHIBIT 2.05-E3 <br />• DRAINAGE AND SEDIMENT CONTROL PLAN <br />TABLE OF CONTENTS <br />INTRODUCTION <br />This exhibit contains all Drainage and Sediment Control (DSC) calculations from Appendices B, Bl, <br />and B2 of the original permit for those drainage structures which still exist except for those structures <br />which have been modified and the original calculations superceded by new calculations. This exhibit <br />also includes all revised design calculations for existing structures that have been modified and new <br />design calculations for chose structures added subsequent to 1997. All DSC calculations for <br />structures or Small Area Exemptions (SAE'S) which no longer exist or have been superceded by new <br />DSC calculation have been eliminated. Exhibit 2.05-E3 is organized and presented under the <br />following sections: <br />Section 1 - East Yard Pond Design Calculations (Designed by M. O. Anderson in 1980, certified <br />by William Reitze in 1984, revised in 1995) <br />Section 2 - Design Calculations for 108" Elk Creek Culvert (Designed and certified by James <br />Stover in 1992, reevaluated by James Stover in 7994) <br />Section 3 - Design Calculations for the Sanborn Creek Portal Area, Haul Road and Conveyor <br />Bel[ Corridor (Designed and certified by James Stover in 1991, revised in 1993; <br />• Includes Maps 5-018, 5-019, 5-020, 5-021) <br />Section 4 - Drainage and Sediment Control Calculations for Hubbard Canyon Ventilation <br />Facilities (Designed by M. O. Anderson in 1981, revised in ]994 and certified by <br />James Stover) <br />Section 5 - Methodology and Assumptions for Hydrology and Sedimentology Calculations <br />(Designed and certified by Thomas ELeidich -Montgomery Watson in 1997; revised <br />in 2000) <br />Section 6 - Revised and New Pond Designs (Designed and certified by Thomas ELeidich - <br />Montgomery Watson in 1997, revised in 2000 and-2003) <br />Section 7 - Revised and New Channel Designs (Designed and certified by Thomas ELeidich - <br />Montgomery Watson in 1997, revised in 2000, 2001, and 2003) <br />Section 8 - Revised and New Culvert Designs (Designed and certified by Thomas ELeidich - <br />Montgomery Watson in ] 997, revised in 2000, 2001, and 2003) <br />Section 9 - Revised and New SAE's and Altemadve Sediment Controls (ABC's) (Designed and <br />certified by Thomas ELeidich - Montgomeq~ Watson in 1997, revised in 2000) <br />Section 70 - SEDCAD Hydrology Computer Printouts (Designed and certified by Thomas E <br />Leidich -Montgomery Watson in 7997, revised in 2000, 2001, and 2003} <br />• Section 11 - Channel Hydraulics Computer Printouts (Designed and certified by Thomas E <br />Leidich -Montgomery Watson in 1997, revised in 2000, 2001, and 2003) <br />Section 72 - Design Certifications <br />TR-43 Revised September 2003 <br />