TABLE OF CONTENTS: VOLUME 1

Transcription

1 Page i TABLE OF CONTENTS: VOLUME 1 Clallam County Resolution No. 47, 2005, Approving the Plan Acknowledgements Planning Unit Signatures and Initiating Government Letters of Approval TABLE OF CONTENTS... i EXECUTIVE SUMMARY... xi 1.0 INTRODUCTION AND PLANNING FRAMEWORK Watershed Planning in Washington How Watershed Planning is Initiated Watershed Plan Limitations Expanded Planning Funds Watershed Plan Implementation Watershed Planning Process and History in WRIA Initiating Governments History of Watershed Planning in East WRIA History of Watershed Planning in West WRIA ning Process Addendum, May WATERSHED CHARACTERIZATION Natural Environment Geography Climate Geology Soils Hydrology and Geohydrology Biology Human Environment Land Use and Demographics Water Quantity Water Budget Water Rights Water Use Water Availability Future Water Supply Requirements Elwha River and Tributaries Overview Elwha River (Upper and Lower mainstem) (WRIA # ) Indian Creek (WRIA # ) Little River (WRIA # )

2 Table of Contents Page ii 2.5 Port Angeles Urban Independent Drainages Dry Creek (WRIA # ) Tumwater Creek (WRIA # ) Valley Creek (WRIA # ) Peabody Creek (WRIA # ) White Creek (WRIA # ) Ennis Creek (WRIA # ) Lees Creek (WRIA # ) Morse Creek (WRIA # ) Geography Climate Geology Soils Hydrology and Geohydrology Biology Factors of Change Land Use and Demographics Ecosystem Functions and Conditions Water Quality Fish and Habitat Bagley, Siebert, and McDonald Creeks (Central Strait Independent Drainages) Bagley Creek (WRIA # ) Siebert Creek (WRIA # ) McDonald Creek (WRIA # ) Dungeness Watershed Geography Hydrology Geohydrology Factors of Change Water Quality Fish and Habitat Matriotti Creek (WRIA # ) Hurd Creek (WRIA # ) Bear Creek (WRIA # ) Canyon Creek (WRIA # ) Caraco Creek (WRIA # ) Gray Wolf River (WRIA # ) Gold Creek (WRIA # ) Silver Creek (WRIA # ) East Strait Clallam Independent Drainages Meadowbrook Creek (WRIA # ) Cooper Creek (WRIA # ) Cassalery Creek (WRIA # ) Gierin Creek (WRIA # ) Bell Creek (WRIA # )

3 Table of Contents Page iii 2.10 Sequim Bay and Drainages Watershed Overview Sequim Bay Johnson Creek (WRIA# ) Dean Creek (WRIA # ) JCL Creek (WRIA # ) Chicken Coop Creek (WRIA # ) Other Streams Strait of Juan de Fuca Marine Nearshore Environment Overview Physical Environment Biology RECOMMENDATIONS Water Quantity Recommendations Future Water Supply Strategies for People and Fish Water Rights and Water Use Data Surface Water Supply Sources Groundwater Supply Sources Public Water Supply Enforcement and Relinquishment of Unused Water Rights Water Conservation Irrigation Water Management New Water Storage Reclaimed Water Supply Water Quality Recommendations Pollution from Failing Septic Systems Pollution from Animal-Keeping Practices Pollution from Stormwater Runoff Other Sources of Pollution (Hazardous Waste, Commercial and Industrial Pollution Groundwater Shellfish Monitoring and Assessment Clean Water District Habitat Recommendations Area- Wide Habitat Restoration, Salmon Recovery, and Fish Management Rural Streams Urban Streams Wetlands Riparian Corridors Wildlife Management Floodplains and Flood Hazard Management

4 Table of Contents Page iv 3.4 Instream Flow Recommendations Stormwater Recommendations Land Use and Land Management Recommendations Land Conversions Development in Sensitive Areas Interaction Between Septic and Wellhead Zones of Control WRIA 18 Boundaries Water Conservation in Land Development Forest Lands Management Public Education and Outreach Recommendations Public Education and Conservation Annual State of the Watershed Watershed Management Recommendations WRIA 18 Watershed Councils Local Watershed Groups Elwha River and Tributaries Recommendations Elwha River (WRIA # ) Indian Creek (WRIA # ) and Lake Sutherland Little River (WRIA # ) Port Angeles Independent Drainages Recommendations Dry Creek (WRIA # ) Tumwater Creek (WRIA # ) Valley Creek (WRIA # ) Peabody Creek (WRIA # ) White Creek (WRIA # ) Ennis Creek (WRIA # ) Lee s Creek (WRIA # ) Morse Creek Recommendations Bagley, Siebert, and McDonald Recommendations (Central Strait Independent Drainages) Bagley Creek (WRIA # ) Siebert Creek (WRIA # ) McDonald Creek (WRIA # ) Dungeness River and Tributaries Recommendations Dungeness River (WRIA # ) Matriotti Creek (WRIA # ) Other Dungeness Tributaries East Strait Independent Drainages Recommendations Meadowbrook Creek (WRIA # )

5 Table of Contents Page v Cooper Creek (WRIA # ) Cassalery Creek (WRIA # ) Gierin Creek (WRIA # ) Bell Creek (WRIA # ) Sequim Bay and Drainages Recommendations Johnson Creek (WRIA # ) Sequim Bay State Park Creek Dean Creek (WRIA # ) Jimmycomelately Creek (WRIA # ) No Name Creek Chicken Coop Creek (WRIA # ) Sequim Bay Estuarine Wetlands Sequim Bay Marine Shoreline and Waters Strait of Juan de Fuca Marine Nearshore Recommendations ACRONYMNS AND ABBREVIATIONS GLOSSARY BIBLIOGRAPHY APPENDIX List of Appendices Appendix 1-A: WRIA 18 Planning Framework Appendix 1-B: Recommendations of Others Appendix 1-C: Sequim-Dungeness Valley Agricultural Water Users Association Rules and Regulations Appendix 1-D: Intergovernmental Agreement Appendix 1-E: DRMT Watershed Restoration Plans & Activities 1989 to 2001, 2001 Milestones Report, and the 2002 Milestones Report Appendix 1-F: DRMT Focus Workshops Schedule: Appendix 1-G: EMMT Work Plan Appendix 1-H: SEPA Documentation Appendix 2-A: Concurrent Research Summaries Appendix 2-B: WRIA 18 Water Rights Analysis (Ecology 2000) Appendix 2-C: WRIA 18 Geographic Information Systems Analysis of Water Rights (Ecology 2002) Appendix 2-D: Water Conservation Measures Appendix 2-E: Detail of Chinook Plantings from Dungeness Hatcheries Appendix 3-A: Remaining Issues (Those Issues Yet to be Resolved) Appendix 3-B: Limiting Factors Analysis Appendix 3-C: Instream Flow Fact Sheet Appendix 3-D: Dungeness Watershed Proposed Project List [Appendix 3-E: Documentation of Public Hearing Process (found in VOLUME 2)]

6 Table of Contents Page vi List of Tables Table Integration among Members of Watershed Planning Units and Other Natural Resource Management and Salmon Recovery Efforts in WRIA Table Average Annual Water Budget for Sequim-Dungeness Area as Estimated by Thomas et al, (1999) Table Estimated Annual Water Resource from Precipitation for Selected Sub-areas of the Dungeness River Basin and East WRIA Table Recorded Monthly Flows for East WRIA 18 Smaller Streams Table Surface Water Flows in East WRIA 18 Drainages Table Groundwater Availability in East WRIA Table Temperature Preferences and Lethal Limits for WRIA 18 Salmonids Table Assessment of Habitat Limiting Factor Severity for Major Salmonid-Bearing Watersheds within WRIA Table Distribution of Salmonids Species in WRIA Table Timing of Life History Stages for Anadromous Salmonids in WRIA Table WRIA 18 Salmon and Steelhead Stock Designations and Associated Status Table Wetland Acreage, Percent of Total Subwatershed, City of Port Angeles Table Clallam County Population Growth Trends Table WRIA 18 Population Growth Histories and Forecasts Table WRIA 18 Buildout Potential by Subbasin Table WRIA 18 Population Growth Under Current Zoning and Land Division by Subbasin Table WRIA 18 Population and Residential Density by Subbasin Table WRIA 18 Water Rights by Subbasin Table WRIA 18 Surface Water Rights by Subbasin Table WRIA 18 Groundwater Rights by Subbasin Table WRIA 18 Well Numbers, Density, and Depth: Distribution by Subbasin Table Water Right Purpose as a Percent of Source Total Table Water Right Purpose as a Percent of Total Rights Table Class A Public Water Systems: Connections and Sources Table WRIA 18 Class A and B Public Water Systems Table Municipal and Domestic Water Demand by Subbasin Table Commercial and Industrial Water Demand by Subbasin Table Estimated Annual WUA Irrigation Water Budget Table WUA Water Rights and Current Use Table Current and Future Water Demand for WRIA 18 Non-WUA Agricultural Land Table Recent WUA Dungeness River Diversions Table Comparison of Stream Flows to WRIA 18 Water Rights and Peak Water Use Impacts Table Water Rights and Claims on the Dungeness River

7 Table of Contents Page vii Table Residential Water Demand by Subbasin within Group A Public Water System Boundaries Table Future Agricultural Water Demand on the Dungeness River (2020) Table Major Elwha River Tributaries Table New Wild Salmonid Production and Recovery Time Table Morse Creek Watershed Areas Table Mean Monthly Flows for Morse Creek at Gage No Table Percent of Days Below Level Stated Morse Creek Flows at Gage No Table FERC Flow Requirements Table Timing of Returning Spawners in Morse Creek Table Incremental Average Annual Flows in the Dungeness River Basin Table Lower Dungeness River (RM 0 to RM 10.5) Subdivisions Table Major Levees (Dikes) along the Lower Dungeness River and Related Reaches Table Bridges along the Lower Dungeness River and Associated Impacts Table Land Use in the Dungeness River Area Watershed Table Sediment Sources from the Upper Dungeness River Basin and Annual Yield Table Fecal Coliform TMDL Load Allocations Dungeness River and Tributaries Table Dungeness Bay Action Plan Table Instantaneous Mean Daily Values for Fecal Coliform Concentration, Loading and Allocations, Flow, and Relative Contributions of Flow and Fecal Coliform Loading to Inner and Outer Dungeness Bay Table Indigenous Stocks of Salmon and Trout of the Dungeness River Basin Table Historical Reconstruction of Pink and Chinook Salmon Run Size Table Evaluation of River Bed Material as Suitable Fish Spawning Gravel Table Flow Providing Maximum Habitat Area by Species and Life Stages Table Recommended Monthly Flows vs. Monthly Exceedance Flows Table Table Dungeness River System Chinook Redd Distribution, 2001 Spawning Season from the Chinook Broodstock Program Erosion Features by Process Type and Land Use or Land Condition for the Mass Wasting Inventory Table Limited Water Temperature Data for Johnson Creek ( ) Table Theoretical Optimum Instream Flow Summary for Johnson Creek (1997) Table Theoretical Instream Flow Predictions for Johnson Creek (1993) Table Theoretical Optimum Instream Flow Summary for Dean Creek Table Water Temperature Data Jimmycomelately (JCL) Creek (RM 0.1) Table DOH Water Quality Data (Station 21 at mouth of JCL Creek) Table Theoretical Optimum Instream Flow Summary for JCL Creek (1997) Table Theoretical Instream Flow Predictions for JCL Creek (1993) Table Theoretical Instream Flow Predictions for Chicken Coop Creek (1993)

8 Table of Contents Page viii Table Dungeness Planning Area (East WRIA 18) Recommendations for Regulatory Instream Flow Levels Table Elwha-Morse Planning Area (West WRIA 18) Recommendations for Regulatory Instream Flow Levels Table Priorities for West WRIA 18 Rivers and Streams Table Monthly ranking of species and life stages, maximum habitat area flow (cfs), and recommended flows based on rank of species and life stages List of Figures Figure East WRIA 18 Area Map Figure West WRIA 18 Area Map Figure ning Unit Organizational Chart Figure Roadmap Figure Flow of East WRIA 18 Planning Figure Flow of West WRIA 18 Planning Figure Generalized Surficial Geology and Locations of Hydrogeologic Sections Figure Hydrogeologic Cross Section A-A, Sequim-Dungeness Area, Washington Figure Hydrogeologic Cross Section B-B, Sequim-Dungeness Area, Washington Figure Average Annual Ground Water Budget for Primary Study Area During Period of December 1, 1995 to September 30, 1997, Sequim-Dungeness Area, Washington Figure Conceptualized Groundwater System: East WRIA 18 (Figure 12 from Drost 1983) Figure 2.1-6a Critical Aquifer Recharge Areas in East WRIA b Critical Aquifer Recharge Areas in West WRIA Figure WRIA 18 Salmon Stock Status Figure Wetlands in East WRIA Figure Wetlands in West WRIA Figure Subbasin Areas Analyzed for Buildout East WRIA Figure Subbasin Areas Analyzed for Buildout West WRIA Figure Change in Land Use/Land Cover for the Dungeness River Area Figure Zoning,Urban Growth Areas in East WRIA Figure Zoning,Urban Growth Areas in West WRIA Figure Class A Water Systems in West WRIA Figure Class A Water Systems in Central WRIA Figure Class A Water Systems in East WRIA Figure Sequim-Dungeness Valley Irrigation Districts and Companies (East WRIA 18) Figure Comparison of Water Withdrawals from Dungeness River in September 1987 and September 1998; Estimated Savings from Proposed Water Conservation Project

9 Table of Contents Page ix Figure Dungeness River Agricultural Water Users Association: Average Annual Diversion Rates Figure Washington State Department of Fish and Wildlife Elwha River Fish Hatchery Water Budget Figure Lower Elwha Klallam Tribe Elwha River Fish Hatchery Water Budget Figure Washington State Department of Fish and Wildlife Morse Creek Fish Production Water Budget Figure Washington State Department of Fish and Wildlife Hatchery Water Budget: Dungeness River and Hurd Creek Figure Elwha River and Tributaries Area Map Figure Elwha River Hydrograph at McDonald Bridge near Port Angeles, 1952 through Figure Elwha River Capital Facilities Figure Restoration Projects West WRIA Figure Indian Creek Hydrograph above Confluence with the Elwha River 1952 through Figure Little River above Olympic Hot Springs Road 1952 through Figure Port Angeles Urban Independent Drainages Area Map Figure Dry Creek Hydrograph Figure Tumwater Creek Hydrograph Figure Valley Creek Hydrograph Figure Peabody Creek Hydrograph Figure Ennis Creek Hydrograph Figure Lees Creek Hydrograph Figure Morse Creek Area Map Figure Morse Creek between Mining Creek 1952 through Figure Morse Creek between Surveyor Creek 1952 through Figure Morse Creek near Port Angeles 1952 through Figure Timing of Salmonid Life Stages in Morse Creek Figure Siebert, McDonald, Bagley Creeks (Central Strait Independent Drainages) Area Map Figure Bagley Creek Hydrograph Figure Siebert Creek Hydrograph Figure McDonald Creek Hydrograph Figure Dungeness River Watershed Area Map Figure Mean Daily Discharge for the Dungeness River and Average Monthly Precipitation Near Sequim, Washington Figure Calculated Gains and Losses in the Five Subreaches of the Dungeness River Figure Dungeness River Capital Facilities Figure Dungeness River and Tributaries Study Fecal Coliform 90 th Percentiles, and Target Fecal Coliform 90 th Percentile Concentrations

10 Table of Contents Page x Figure Sequim-Dungeness Clean Water District Figure Restoration Projects in East WRIA 18, Figure Dungeness River Approximate Mean Monthly Flows and Recommended Instream Flows Figure Increases in Spawning Area with Increases in Instream Flows Figure East Strait Independent Drainages Area Map Figure Cassalery Creek Hydrograph Figure Gierin Creek Hydrograph Figure Bell Creek Hydrograph Figure Sequim Bay Watershed Area Map (WRIA 17) Figure Johnson Creek Hydrograph ( ) Figure Dean Creek Hydrograph ( ) Figure Jimmycomelately Creek Hydrograph ( ) Figure Strait of Juan de Fuca Marine Nearshore Figure Locations of Forage Fish and Their Spawning Areas