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Quartzville Watershed Analysis

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Quartzville Watershed Analysis Quartzvi lie Watershed Analysis September 2002 Quartzville Creek Wild and Scenic River UNITED STATES UNITED STATES ~~b' DEPARTMENT OF THE INTERIOR DEPARTMENT OF AGRICULTURE Bureau of Land Management U.S. Forest Serivce Salem District-Oregon Willamette National Forest - Oregon Cascades Resource Area -..-- Sweet Home Ranger District ------ Quartzville Watershed Analysis Cascades Resource Areas Salem District Bureau of Land Management 1717 Fabry Road SE Salem, OR 97306 503-375-5646 and Sweet Rome Ranger District Willamette National Forest U.S. Forest Service 3225 U.S. Highway 20 Sweet Home, OR 97386 541-367-5168 July 2002 P rimary Team Members - BLM lJ.S. Forest Service Participation Laura Graves: Team Lead/Recreation Doug Shank: Soils, Geology Jim England: Wildlife Alice Smith: Botany Claire Hibler: Botany Dave Halemeier: Hydrology Dave Rosling: Riparian Ecology Ken Loree: Silviculture, Fire John Caruso: Hydrology/Soils Brian McGinely: Recreation Dave Roberts: Fish Todd Buchholz: Fish Barb Raibl e: Ecology Kelly Easterbrook: Fire/Fuels Fran Philipek: Cultural Resources Marilyn Hubbard: Roads Floyd Freeman: Silviculture Robb Ginn: Mining Wayne Barney· Geographic Information System Dean Devlin: Geographic Information Scon BraytOn: Writer/Editor System Accepted by: dt,1 C. &za c- w Date lA S~? lOOZ. Richard C. Prather, BLM - Cascades Field M ger Date (j ·-I I - c7 Z. Michael L. Rassbach, FS- Sweet Home District Ranger TABLE OF CONTENTS Executive Summary ............................................................ S-1 Chapter 1 Introduction ................................................ Ch.1 Pg.1 Scoping .................................................... Ch.1 Pg.3 Chapter 2 Characterization ............................................. Ch.2 Pg.1 Chapter 3 Issues and Key Questions ..................................... Ch.3 Pg.1 Chapter 4 Historical Conditions ........................................ Ch.4 Pg.1 Chapter 5 Current Conditions .......................................... Ch.5 Pg.1 Terrestrial .................................................. Ch.5 Pg.2 Aquatic ................................................... Ch.5 Pg.25 Human Uses ............................................... Ch.5 Pg.49 Chapter 6 Future Conditions and Trends ................................. Ch.6 Pg.1 Terrestrial .................................................. Ch.6 Pg.2 Aquatic .................................................... Ch.6 Pg.8 Human Uses ............................................... Ch.6 Pg.10 Chapter 7 Findings and Recommendations ............................... Ch.7 Pg.1 Terrestrial .................................................. Ch.7 Pg.1 Aquatic ................................................... Ch.7 Pg.13 Human Uses ............................................... Ch.7 Pg.16 Chapter 8 Data Gaps and Monitoring Needs .............................. Ch.8 Pg.1 i Figures Figure 5-1: Plant Association Series ........................................ Ch.5 Pg.2 Figure 5-2: Seral Stage for All Lands ....................................... Ch.5 Pg.5 Figure 5-3: Seral Stage for Non-Federal Ownership ........................... Ch.5 Pg.5 Figure 5-4: Seral Stage for Federal Ownership ............................... Ch.5 Pg.6 Figure 5-5: Stream Density by Sub-Watershed .............................. Ch.5 Pg.27 Figure 5-6: Discharge and Precipitation .................................... Ch.5 Pg.28 Figure 5-7: Seven Day Maximum Temperatures ............................. Ch.5 Pg.34 Figure 5-8: Seven Day Maximum Average Temperature Profiles ............... Ch.5 Pg.34 Tables Table 2-1: Land Ownership .............................................. Ch.2 Pg.2 Table 2-2: Federal Land Use Allocations ................................... Ch.2 Pg.2 Table 5-1: Sub-Watershed Basins by Ownership Acres and Percent ............. Ch.5 Pg.1 Table 5-2: Plant Association Series, Sub-Series, & Indicator Species ............ Ch.5 Pg.3 Table 5-3: Seral Stage Definitions ......................................... Ch.5 Pg.4 Table 5-4: Seral Stage Acreage on Federal Lands by Land Use Allocation ........ Ch.5 Pg.7 Table 5-5: Road Densities by Sub-Watershed Basins and Ownership ........... Ch.5 Pg.12 Table 5-6: Bald Eagle Habitat Classes in the Green Peter Bald Eagle Management Area by Land Use Allocation ....................................... Ch.5 Pg.17 Table 5-7: Spotted Owl Habitat by Ownership ............................. Ch.5 Pg.18 Table 5-8: Spotted Owl Habitat on Federal Lands by Land Use Allocation ...... Ch.5 Pg.19 Table 5-9: Spotted Owl Critical Habitat by Sub-Watershed Basin .............. Ch.5 Pg.21 Table 5-10: Spotted Owl Critical Habitat in LSR and Adjacent Matrix Lands ..... Ch.5 Pg.21 Table 5-11: Current Status of the Spotted Owl and Its Habitat .................. Ch.5 Pg.23 Table 5-12: Quartzville Creek Stream Densities by Sub-Watershed Basin ........ Ch.5 Pg.26 Table 5-13: Water Rights Summary ....................................... Ch.5 Pg.29 Table 5-14: Low Flow Water Availability in Quartzville Creek at 80 Percent Exceedence ................................................. Ch.5 Pg.29 Table 5-15: Selected Water Quality Criteria for Quartzville Watershed .......... Ch.5 Pg.30 Table 5-16: Phosphorous, Nitrogen, and Suspended Solids .................... Ch.5 Pg.31 ii Tables (cont.) Table 5-17: Estimated Channel Network Expansion .......................... Ch.5 Pg.36 Table 5-18: Acres Managed as Forest ...................................... Ch.5 Pg.37 Table 5-19: Acres/Percent Forest Lands in Young and Mature Age Classes ....... Ch.5 Pg.38 Table 5-20: Private Lands in the Greater Than 40 Year Age Class ............... Ch.5 Pg.39 Table 5-21: Slope Stability Assumptions ................................... Ch.5 Pg.40 Table 5-22: Slope Stability by Sub-Watershed and Ownership ................. Ch.5 Pg.41 Table 5-23: Streams with Completed Aquatic Habitat Inventories ............... Ch.5 Pg.43 Table 5-24: ODFW Aquatic Inventory and Analysis Benchmarks ............... Ch.5 Pg.44 Table 5-25: Summary of Instream Habitat Conditions ........................ Ch.5 Pg.47 Table 5-26: LWD Recruitment Potential Within 30m of Stream Channel by SWB . Ch.5 Pg.49 Table 5-27: Land Use Allocations for BLM Lands ........................... Ch.5 Pg.52 Table 5-28: VRM Classifications ......................................... Ch.5 Pg.68 Table 6-1: Potential Future Conditions of the Spotted Owl and its Habitat ........ Ch.6 Pg.7 Appendices Appendix A: Acronyms Appendix B: Glossary Appendix C: Public Scoping and Comments on Quartzville Watershed Issues/Concerns Appendix D: Botanical Species Appendix E: Wildlife Species Appendix F: Riparian Management Areas and Riparian Reserves Appendix G: Riparian Reserve Function & Role of Vegetation Appendix H: Transportation Management Appendix I: Recreation Opportunity Spectrum (ROS) Appendix J: Quartzville Creek Wild and Scenic River Management Actions Appendix K: Quartzville Cultural Resource Sites Appendix L: Bibliography iii Maps Map #1: Location Map Map #2: Ownership Map #3: BLM Land Use Allocation with Riparian Reserves/FPA Stream Buffers Map #4: Federal Land Use Allocations Map #5: Subwatershed Basins Map #6: Vegetation Cover Type Map #7: Vegetation Age Map #8: Seral Stage Map #9: Spotted Owl Habitat/Critical Habitat/Land Use Allocations Map #10: Transportation Map #11: Steam Order Map #12: Stream Flow Map #13: Fish Presence Map #14: Hill Shade Map #15: Precipitation Zones/Slope Stability Hazard Map #16: Digital Elevation Model Map #17: Special Management Areas Map #18: Off-Highway Vehicle Designations Map #19: BLM Visual Resource Management Classifications Map #20: Proposed BLM Land Use Allocation Changes iv Executive Summary This executive summary provides an overview of the Quartzville Watershed Analysis. It summarizes major elements contained within the document, including a brief description of the analysis area, watershed analysis purpose and process, issues and key questions, and findings and recommendations of the analysis. Watershed Analysis Area The Quartzville Watershed is located in northwest Oregon, and falls entirely within Linn County. The watershed is 95,468 acres in size and extends from Green Peter Dam along the Middle Santiam River on the west end, to the vicinity of Scar Mountain on the extreme east end of the watershed (See Map #1: Location Map). Sweet Home is the closest community to the Quartzville Watershed, located approximately five miles southwest from the western boundary of the watershed. Elevations range from about 1,000 feet at Green Peter Dam, to 4,974 feet at Galena Mountain, the highest peak, located on the south end of the watershed. The watershed is stratified into seven Sub Watershed Basins (SWBs) including South Green Peter, Whitcomb Creek, Moose Creek, Packers Gulch, Canal Creek, Lone Star, and Upper Quartzville. The watershed is located within Western Oregon Cascades Physiographic Province. The Quartzville Watershed is bounded by several other watersheds, including Crabtree Watershed to the west, Thomas Creek and the Middle North Santiam River Watersheds to the northwest, Detroit Reservoir/Blowout Divide Creek Watershed to the north, and the Middle and South Santiam Watersheds to the south. Watershed analysis has been completed for all of these watersheds. The majority (72 percent) of the watershed is federally managed. Of those public lands, the U.S. Forest Service (FS) manages 34,629 acres (36 percent), the Bureau of Land Management (BLM) manages 30,783 acres (32 percent) and the U.S.
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