C153699 Feasibility Study

• Contract/PO #: C153699
• Contractor Name: Colorado River Water Conservation District
• Contract Type: Grant
• Water District: 0
• County: Delta
• Bill Number: XB 99-999
• Loan Projects - Doc Type: Feasibility Study

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TABLE OF CONTENTS

PaQe

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PREFACE

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EXECUTIVE SUMMARY ...............................,..................... iii

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INmODUC1l0N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1

WEll.ANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

BIG GAME ............................................................. 25

OSTERHOurS MILKYETCH ................................................. 30

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ADDmONAL ENHANCEMENT AND CONSERVA1l0N MEASURES ...................... 33

SUMMARY OF MmGA1l0N AND ENHANCEMENT COSTS. . . . . . . . . . . . . . . . . . . . . . . . . . .. 35

REFERENCES CITED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 39

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APPENDIX A: MUDDY CREEK FISHERIES ENHANCEMENT
APPENDIX B: CAlCULA1l0N OF THE HEP MOOELS

UST OF TABLES
Table Paae

1 Summary of impacts to wetland wildlife habitat, big game and Osterhout's milkvetch
incurred as the resutt of construction and operation of the proposed Muddy Creek Reservoir. ... 4

2 Summary of acreages of wetland types impacted by inundation and construction of
reservoir facilities. ......................................................... 4

3 Summary of wetland types in the proposed project area based on their condition. . . . . . . . .. 5

4 Summary of impacts to wetland vegetation types and habitat units tor HE? anatysis. ........ 8

5 Summary of wetland types and acreages presem on the mitigation .................... 9

6 Summary of acreages of wetland vegetation types influenced by the water management system on
the proposed lower Muddy Creek mitigation area .................................. 12

7 Impacts to big game winter range due to inundation and facilities construction ........... 25

8 Time table of costs associated with mitigation management actions for the Muddy Creek
mitigation area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 36

9 Summary of costs associated with the mitigation plan, fisheries enhancement program and rare fish
conservation measures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " 38

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