PROJ00243

• Contract/PO #: C153680
• Contractor Name: Santa Maria Reservoir Company
• Water District: 0
• County: Hinsdale
• Bill Number: SB 94-029
• Loan Projects - Doc Type: Feasibility Study

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Table a/Contents

TABLE OF CONTENTS

I. Introduction ...................................................................................................1

A. General..................................................................................................................... 1

B. Project Description................................................................................................... 1

C. Scope of Services..................................................................................................... 2

II. Review of Existing Conditions ......................................................................3

A. Seepage History........................................................................................................ 3

B. Evaluation of Seepage ..............................................................................................5

III. Field Investigation and Testing......................................................................6

A. ~~.....................................................................................................................6

B. Field Investigation.................................................................................................... 6

B. Permeability Tests..................................................................................................... 8

C. Laboratory Testing................................................................................................... 8

IV. Subsurface Conditions ..................................................................................9

A. Soil and Rock........................................................................................................... 9

B. Groundwater.......................................................................................................... 10

C. Seismicity............................................................................................................... 10

V. Embankment Analyses................."..............................................................11

A. Slope Stability Analyses ...................................... .......... .......................................... 11

Method of Analyses....................................................................................... II
Slope Geometry and Material Properties........................................................ II
Phreatic Surface Elevation............................................................................. 12
Slope Stability Results ................................................................................... 13

B. Seepage Evaluation................................................................................................. 14

Method of Analyses....................................................................................... 14
Geometry and Material Properties ................................................................. 15
Seepage Analyses Results ................................................... ........................... 16

Continental Dam

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