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Habitat Conservation Plan Washington County, Utah Habitat Conservation Plan Washington County, Utah Submitted by: Washington County Commission 197 East Tabernacle St. George, Utah 84770 (801) 634-5700 Submitted to: U.S. Fish and Wildlife Service Utah Field Office Lincoln Plaza, Suite 404 145 East 1300 South Salt Lake City, Utah 84115 801-524-5001 Prepared by: Washington County HCP Steering Committee and SWCA, Inc. Environmental Consultants 114 North San Francisco Street, Suite 100 Flagstaff, Arizona 86001 (800) 224-4234 December 1995 TABLE OF CONTENTS EXECUTIVE SUMMARY............................................................................................................ ix CHAPTER 1.0 INTRODUCTION .................................................................................................1 1.1 THE NEED FOR AN HCP IN WASHINGTON COUNTY ...................................1 1.2 PLAN AREA AND PROPOSED ACTIVITIES .....................................................2 1.3 THE HCP PLANNING PROCESS .........................................................................2 1.4 COORDINATION WITH THE DESERT TORTOISE RECOVERY PLAN .........9 1.5 HCP GOALS AND OBJECTIVES .........................................................................9 1.6 PROPOSED PROGRAM ......................................................................................10 1.7 IS THE DESERT TORTOISE NATIVE TO THE ST. GEORGE AREA? ..........11 CHAPTER 2.0 BIOLOGICAL PROGRAM ................................................................................13 2.1 SPECIES OF CONCERN ......................................................................................13 2.2 GUIDING PRINCIPLES .......................................................................................18 CHAPTER 3.0 RESERVE ...........................................................................................................23 3.1 INTRODUCTION..................................................................................................23 3.2 ACQUISITION STRATEGY ................................................................................23 3.3 DESCRIPTION AND MANAGEMENT OF RESERVE ZONES .......................27 3.4 WATER DEVELOPMENT, FLOOD CONTROL, AND OTHER UTILITY CORRIDOR DEVELOPMENT AND MAINTENANCE .....................................45 3.5 ROAD PROTOCOL ..............................................................................................46 CHAPTER 4.0 NON-RESERVE..................................................................................................49 4.1 INTRODUCTION..................................................................................................49 4.2 FEDERAL NON-RESERVE HABITAT AREAS ................................................50 4.3 INCIDENTAL TAKE AREAS ..............................................................................50 4.4 SUBDIVISION POLICY .......................................................................................88 4.5 POTENTIAL HABITAT AREAS .........................................................................88 CHAPTER 5.0 MEASURES TO MINIMIZE AND MITIGATE INCIDENTAL TAKE ............93 5.1 INTRODUCTION..................................................................................................93 5.2 MINIMIZE INCIDENTAL TAKE ........................................................................93 5.3 MITIGATE INCIDENTAL TAKE ........................................................................98 5.4 PROGRAMS FOR OTHER THREATENED AND ENDANGERED SPECIES IN WASHINGTON COUNTY ...........................................................100 CHAPTER 6.0 PERMIT ADMINISTRATION ..........................................................................103 6.1 OVERVIEW OF PERMIT ADMINISTRATION ...............................................103 6.2 ROLE OF HCP PERSONNEL AND COMMITTEES ........................................103 6.3 REPORTS ............................................................................................................106 i 6.4 FUNDING COLLECTION AND DISBURSEMENT .........................................108 6.5 FUNDING ............................................................................................................110 6.6 INCIDENTAL TAKE PROCESS ........................................................................110 6.7 INCREMENTAL IMPLEMENTATION .............................................................115 6.8 PLAN AMENDMENTS ......................................................................................116 6.9 UNFORESEEN CIRCUMSTANCES .................................................................117 6.10 ACTIVITIES WHICH ARE PERMITTED FOR THE INCIDENTAL TAKE AREAS .....................................................................................................118 6.11 IMPLEMENTATION AGREEMENT ................................................................119 CHAPTER 7.0 IMPACT ON SURVIVAL OF LISTED SPECIES ............................................121 7.1 MOJAVE DESERT TORTOISE (GOPHERUS AGASSIZII) .............................121 7.2 BALD EAGLE (HALIAEETUS LEUCOCEPHALUS) ........................................130 7.3 PEREGRINE FALCON (FALCO PEREGRINUS) .............................................131 7.4 MEXICAN SPOTTED OWL (STRIX OCCIDENTALIS LUCIDA) ....................133 7.5 SOUTHWESTERN WILLOW FLYCATCHER (EMPIDONAX TRAILLII EXTIMUS) ...........................................................................................134 7.6 WOUNDFIN (PLAGOPTERUS ARGENTISSIMUS) AND VIRGIN RIVER CHUB (GILA ROBUSTA SEMINUDA) ...............................................................135 7.7 DWARF BEAR-CLAW POPPY (ARCTOMECON HUMILIS) ..........................136 7.8 SILER PINCUSHION CACTUS (PEDIOCACTUS SILERI) .............................137 CHAPTER 8.0 CANDIDATE AND STATE SENSITIVE SPECIES ........................................139 8.1 INTRODUCTION................................................................................................139 8.2 SPECIES OVERVIEW ........................................................................................139 CHAPTER 9.0 DISCUSSION OF WATER IMPACTS ON ENDANGERED FISH .................165 CHAPTER 10.0 ALTERNATIVES CONSIDERED ..................................................................167 10.1 NO ACTION ........................................................................................................167 10.2 NO DEVELOPMENT IN TORTOISE HABITAT ..............................................167 10.3 NO DEVELOPMENT IN TORTOISE HABITAT, BUT LANDOWNERS COMPENSATED ...................................................................168 10.4 RESERVE CONSISTING ONLY OF ZONES 3, 4, AND 5 ...............................168 10.5 A LARGER RESERVE .......................................................................................168 REFERENCES ............................................................................................................................171 INDEX .........................................................................................................................................177 APPENDIX A : UTILITY DEVELOPMENT PROTOCOLS .....................................................181 ii LIST OF TABLES Table ES1. Current Desert Tortoise Habitat and Land Ownership. ................................................v Table ES2. Summary of Disposition of Desert Tortoise Habitat Following HCP Implementation. vi Table 1.1. Federally Listed Threatened and Endangered Species in Washington County. 1 Table 1.2. Land Ownership in Washington County. .......................................................................2 Table 1.3. Membership and Affiliation on the Washington County HCP Steering Committee. 6 Table 1.4. Sources of Funding for the Preparation of the HCP. .....................................................7 Table 2.1. Estimated Desert Tortoise Habitat Acreage and Number of Animals in the Upper Virgin River Recovery Unit. .............................................................................15 Table 2.2. Land Ownership Acreages for the Two Listed Plant Species ......................................17 Table 3.1. Land Ownership and Desert Tortoise Habitat in the Proposed Reserve. .....................23 Table 3.2. Parcel Information for Zone 1 of the Proposed Reserve. .............................................29 Table 3.3. Parcel Information for Zone 2 of the Proposed Reserve. .............................................31 Table 3.4. Parcel Information for Zone 3 of the Proposed Reserve. .............................................36 Table 3.5. Parcel Information for Zone 4 of the Proposed Reserve ..............................................41 Table 3.6. Parcel Information for Zone 5 of the Proposed Reserve. .............................................45 Table 4.2. Amount of Desert Tortoise Habitat in Incidental Take Areas .....................................53 Table 4.3. Parcel Information for Gunlock Take Area. ................................................................53 Table 4.4. Parcel Information for Ivins/Padre Canyon/Paradise Canyon Take Area. ...................56 Table 4.5. Parcel Information for the Winchester Hills Take Area. .............................................60 Table 4.6. Parcel Information for the St. George Take Area. .......................................................65 Table 4.7. Parcel Information for North Washington City Take Area. .........................................74 Table 4.8. Parcel Information for the Harrisburg/Leeds/Babylon
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