1 / 12

Middle Fork Project Technical Study Overview 2008 Implementation Plan

This project involves extensive field surveys, habitat modeling, fish population studies, and water temperature analysis among other assessments to support better management of the Middle Fork area. The detailed study aims to address various environmental aspects including instream flow, fish passage, entrainment, geomorphology, riparian resources, water quality, and special-status amphibians and aquatic reptiles.

collinsv
Download Presentation

Middle Fork Project Technical Study Overview 2008 Implementation Plan

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Middle Fork ProjectOverview of 2008 Technical Study Plan Implementation April 21, 2008

  2. AQ 1 – Instream Flow • 2008 Field Surveys Instream • 12 Fish Study Sites (high, medium, and low flows) • Rubicon River High Flow Issue • 4 Sites with 2D for FYLF • 5 Riparian Study Sites (high, medium, and low flows) • 2 FYLF Stage Locations (NF near Shirttail, NFMF) • 2D Model Validation • FYLF Egg Masses and Tadpoles • Coordinate with Geomorphology, Riparian, Amphibian and Aquatic Reptile, and Recreation TSPs • Stranding Evaluation • Snorkel 3 Large Pools/Write-up • Peaking Reach Stage Monitoring • Document Algae Abundance and Presence of Didymo • Quantify Flow Level For Horseshoe Bar Channel

  3. AQ 1 – Instream Flow (cont.) • Habitat Modeling • Develop HSC • Coordinate with Riparian, Geomorphology, and Special-status Amphibian and Aquatic Reptile TSPs • Document Results in 2009 Instream Flow TSR

  4. AQ 2 – Fish Population • Draft Report Comments • Ralston Afterbay Sampling • 2 Times (early summer and fall) • Gillnets, Boat Electroshocking, Sonar, Water Temp • Determine 2008 Sampling Sites with Aquatic TWG • River Study Sites • Qualitative Hardhead Distribution • Identify Appropriate River Fish Standing Crop Comparison Data Sets • Document 2008 Results in 2009 Fish Population TSR • Misc. • Duncan Diversion Pool • Fish Scales (coordinate with fishermen?) • Periodicity Chart

  5. AQ 3 – Macroinvertebrate andSpecial-status Mollusks • Draft Report (Coming Soon) • Mollusk Field Study (20 sites) • See map (4 sites with WPS mussels) • Consult with TWG Regarding Water Quality Results & Potential BMI Sampling • Document 2008 Mollusk Results in Macroinvertebrate and Special-status Mollusks TSR • Present Drift Sampling Results in the 2009 Bioenergetics Study Report

  6. AQ 4 – Water Temperature Modeling • Water Temperature and MET Data Collection (2007-2008) • Tunnel Sites • Data Collection • Temperature Refugia (Tributaries/Pools) • Travel Times • Develop Temperature Model • Water Temperature Modeling Subgroup • Select Models • Develop and Calibrate Models • Analyze Data and Develop Water Temperature Analysis • Scenarios • Betterments • Global Warming • Empirical Analysis of Small Streams • Document Results in 2009 Water Temperature Modeling TSR

  7. AQ 6 – Fish Passage • Draft Report (Coming Soon) • Consult with Aquatic TWG to: • Determine if Hydrodynamic Modeling is Required at any Barriers • Discuss Passage at Project Facilities • Document 2008 Surveys in 2009 Fish Passage TSR

  8. AQ 7 – Entrainment • White Paper Analysis Report (Coming Soon) • Consult with TWG to: • Determine Entrainment Mitigation • Determine Need for Entrainment Sampling • If Necessary, Conduct 2008-2009 Entrainment Sampling • Document sampling in 2010 Entrainment TSR

  9. AQ 9 – Geomorphology • Characterize Sediment Capture in Reservoirs • Survey French Meadows and Hell Hole reservoirs, Ralston Afterbay, Duncan Diversion, and Middle Fork Interbay • Betterment • Shoreline Erosion with Hell Hole Storage Increase • Hydrology • Flood Frequency Analysis • Sediment Transport Calculations • High Flow Measurements if Possible • Bankfull Identification • Consult with Aquatic TWG on Need for Empirical Sediment Transport Data Collection • Document 2007 and 2008 Results in 2009 Geomorphology TSR

  10. AQ 10 – Riparian Resources • Conduct 2008 Field Surveys • Project Betterments Riparian Vegetation (Hell Hole Reservoir and Five Lakes Creek) • Tree Cores from the Rubicon River Downstream from Hell Hole Dam (R25.7) • Instream Flow Measurements (in Coordination with AQ 1) on Comparison Streams and Bypass Streams (if possible) • Riparian Mapping at Peaking Reach 2D Modeling Sites • Document 2007 Comparison Stream and 2008 Analysis Results in 2009 Riparian Resources TSR

  11. AQ 11 – Water Quality • Draft Report Comments • Consult with TWG to Determine if: • Results from the 2007 Water Quality Sampling Program Indicated Potentially Adverse Water Quality Conditions that Require Additional Sampling (Water Quality and/or BMI) • Additional Fish Tissue Mercury Sampling is Necessary • If Necessary, Complete 2008 Sampling • Document 2008 Results in 2009 Water Quality TSR

  12. AQ 12 – Special-status Amphibian and Aquatic Reptiles Draft Report Comments FYLF • Stage Data at NF35.7 and NFMF1.6 (1-3 cross-sections) • Collect Modeling Validation Data at 2D Sites • Egg Masses/Tadpoles • Breeding Timing (Initiation of Breeding) • Additional Breeding Timing Data (Shirttail, Otter Creek) • Consult with TWG to Identify any Data Gaps: • Identify if Additional Limited-scope 2008 Surveys are Needed (e.g., breeding and timing, site revisits) CRLF • Complete CRLF Surveys in 2009 (Horseshoe Bar & Ralston Ridge) • Document 2008 Survey Results in 2009 Amphibian TSR

More Related