1. Claytor Hydroelectric Project Water Quality Study Mark Hutchins, Project Manager January 25, 2007

2. About Normandeau Associates, Inc.  New Hampshire-based natural resources consulting firm founded in 1970  Employee-owned since 2001  13 fully-staffed offices nationwide  Known for managing complex field and impact assessment projects  Recognized as one of the largest natural resource management companies in the U.S. (EBJ)

3. Hydro Relicensing Services  FERC Relicensing and Compliance  Fish Passage  Wetlands, Endangered Species & Wildlife  Water Quality Monitoring and Mitigation  Instream Flow Studies

4. Representative HydroPower Projects  Dozens of Hydro projects throughout the U.S.  Yadkin Relicensing (NC)  Tapoco Relicensing (NC/TN)  Santee Cooper Relicensing (SC)  TVA Reservoir Operations Study EIS (35 dams, 6 states)

6. Claytor Lake Water Quality Study  Study Goals – Evaluate WQ within and downstream of Claytor Lake – Determine how hydroelectric operations affect WQ – Determine how hydroelectric operations could be modified to improve WQ, if necessary  Study Methods – Collect existing WQ data – Collect new WQ data – Characterize existing WQ conditions – Recommend measures to enhance WQ, as appropriate

7. Specific Study Objectives  Objective 1: Assemble and Review Existing Data All recent (last 15 years) data immediately upstream, within and downstream of Claytor Lake will be retrieved. Know data sources are state agencies, colleges and universities and non- governmental agencies QA/QC data VDEQ will determine data acceptability

8. Specific Study Objectives  Objective 8: Assess Adequacy of Existing Upriver and Downriver Temperature Data Evaluate existing VDGIF continuous temp data to determine completeness, deficiencies and additional data needs. Modify field collection study plan, if appropriate, to fill data gaps

9. Specific Study Objectives  Objective 4: Collect Additional WQ Data Sampling period – generally, once weekly, June 15 to September 15 Four locations – inflow to Claytor Lake, lower Claytor Lake, Claytor Dam tailrace and select downriver locations  At an upriver mussel bed Temperature only  Within Claytor Lake at three transects (forebay, 1km, 2km) Sampling will occur at 4 equi-spaced locations per transect DO, temp, pH and conductivity by 1-meter vertical profile Chlorophyll a by field meter at one center location per transect by 1-meter vertical profile  In Project tailrace – continuous monitoring Sampling will occur at one well-mixed location DO, temp, pH and conductivity  3 downriver transects (Rt 11 bridge, upriver of Plum Creek, Pembroke area) Sampling will occur at each quarter point on each transect in pre-dawn/early dawn hours DO, temp, pH and conductivity by 1-meter profile, if appropriate

10. Specific Study Objectives Objective 2: Characterize Existing Study Area WQ Use existing and new collected WQ data Focus will be DO/temp, but other WQ parameters will be included Characterization will be 4 dimensional – longitudinal (Allisonia to Glen Lyn), horizontal, vertical and temporal Temporal focus will be spring, summer, early fall

11. Specific Study Objectives  Objective 7: Identify Impact of Project Operations on Claytor Lake and Downriver WQ Identify, where possible how peaking operations, water level fluctuations, water residence times and turbine intake zones affect reservoir and New River WQ

12. Specific Study Objectives  Objective 3: Identify Measures that could Enhance Downriver DO under Normal and Drought River Flow Conditions Determine the magnitude, frequency and duration of low DO events downriver of the Project Conduct a literature survey of methods used to improve DO at hydroelectric facilities Assess applicability to Claytor Lake

13. Specific Study Objectives  Objective 6: Determine Effects of Sediments on Claytor Lake WQ Conduct a literature review of activities that may affect sediment/water/fish interactions Review VDEQ fish tissue and sediment analyses data Assess relevance to Claytor Lake

14. Specific Study Objectives  Objective 5: Develop Protocols for Future WQ Monitoring, as Appropriate Identify remaining WQ data deficiencies Detail how future sampling efforts should be undertaken, spatially and temporally, to eliminate these deficiencies

15. Project Deliverables  Periodic Progress Reports  Draft Information Report  Final Information Report  Weekly spreadsheets of new data to VDEQ  Draft Final Report  Final Report

16. Schedule  Progress Reports – May, August and November 2007  Draft Informational Report – May 2007  Final Informational Report – June 2007  Stakeholders Meeting – May 2007  WQ Sampling Program – June 15-September 15, 2007  Draft Final Report – January 2008  Stakeholders Meeting – February 2008  Final Report – by May 30, 2008