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Instream-Flow Study North Fork Shenandoah River

Instream-Flow Study North Fork Shenandoah River. Jennifer L. Krstolic and Donald C. Hayes. Knowledge Gained. Physical Habitat Classified Fish Species Documented Low-Flow Water Quality http://water.usgs.gov/pubs/sir/2004/5153/ Stage-Discharge Relation Habitat-Flow Relation.

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Instream-Flow Study North Fork Shenandoah River

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  1. Instream-Flow Study North Fork Shenandoah River Jennifer L. Krstolic and Donald C. Hayes

  2. Knowledge Gained Physical Habitat Classified Fish Species Documented Low-Flow Water Quality http://water.usgs.gov/pubs/sir/2004/5153/ Stage-Discharge Relation Habitat-Flow Relation

  3. Water-Quality During Low-Flow Periods Diurnal patterns of DO showed large fluctuations pH values higher than State standard found only at downstream end Water temperatures within State standards

  4. Water-Quality Questions Raised How does DO fluctuate during normal summer flows? What processes most influence pH values? How does ground-water discharge affect water temperature?

  5. Modeling Results

  6. Interpretation

  7. Application: Drought Flows and Habitat

  8. Next Steps for the North Fork Adoption of Thresholds and proposal to policy makers Un-permitted Water Withdrawal Study Further investigation into water quality on the North Fork

  9. Instream-Flow Study South Fork Shenandoah River

  10. Proposed South Fork Research Sister study with similar research components PHABSIM modeling with additional water-quality monitoring Connecting surface-water and ground-water research efforts

  11. Proposed South Fork Research

  12. Proposed South Fork Research Physical Habitat Classification with more geomorphology Low-Flow and Normal-Flow Water-Quality studies Habitat-Flow Relation tied to stream gages for three sections of the South Fork Shenandoah River Transfer of North Fork basin and flow characteristics to the South Fork tributaries

  13. Proposed South Fork Research Timeline 2005 - 2007 Physical-Habitat Mapping, Water-Quality Survey, Reach Selection, Transfer Basin Characteristics, Publications 2008 - 2010 Hydraulic-Data collection, Modeling, Analysis, Publication

  14. South Fork Companion Investigations Fish Habitat Needs-Assessment Estimated Un-permitted Water Withdrawal Study

  15. Shenandoah Valley Water Withdrawals Pilot Study Identify and document actual use by permit holders Locate unregulated water users Apply methods to measure and estimate water use

  16. Questions?

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