2008-02-04_GENERAL DOCUMENTS - M1989056

• Permit No: M1989056
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 2/4/2008
• Doc Name: Plan for Don Kehn Construction
• From: Anderson Consulting Engineers, Inc
• To: Don Kehn Construction
• Email Name: ESC
• Media Type: D
• Archive: No

TABLE OF CONTENTS
I. INTRODUCTION ...............................................................................................................1
II. LAYOUT CONSTRAINTS .................................................................................................2
2.1 Setbacks and Right-of-Ways ............:.......................................................................2
2.2 Development and Utility Easements ........................................................................4
2.3 DeI-th of Mining .......................................................................................................4
2.4 Hydraulic and Hydrologic Constraints .................:..................................................5
III. PROPOSED CONCEPTUAL FINAL LAYOUT ...............................................................7
3.1 Land Use ..................................................................................................................7
3.2 Hydraulic Structures ................................................................................................9
3.3 System Capacities and Opera~ion ..........................................................................12
IV. ECONOM][C ANALYSIS ........................................................................................:........IA~
V. RECOMMENDATIONS ............:......................................................................................19
5.1 Economic Analysis ................................................................................................19
5.2 Proposed Final Layout ...........................................................................................19
5.3 Procedure for Future Mining .........................................................:.......................21
5.4 Ope;ration of SWSP ................................................................................................22
VI. REFERENCES .......................:..........................................................................................24
LIST OF FIGURES
Figure 2.1 Development, Utility Easements, and Setbacks with Mining Phase Map ...............3
Figure 3.1 Conceptual Final Layout with Transfer Culverts and Pump Station .......................8
Figure 3.2 Pond Embankment, Water Surface, and Invert Profiles of Proposed Fina1...........10
Layout
Figure 4.1 Optional Final Layout with 12" Gravity Outlet .....................................................17
Figure 4.2 Optional Final Layout with Transfer Culverts 8" Gravity Outlet and ...................19
Pump Station
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