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Compliance Monitoring─Ensuring Effective Results

Compliance Monitoring─Ensuring Effective Results. Jim Younk Idaho Power Company. Hydroelectric Projects. Lower Salmon Falls. Shoshone Falls. Bliss. Upper Salmon Falls. Water Quality Monitoring History.

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Compliance Monitoring─Ensuring Effective Results

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  1. Compliance Monitoring─Ensuring Effective Results Jim Younk Idaho Power Company

  2. Hydroelectric Projects

  3. Lower Salmon Falls Shoshone Falls Bliss Upper Salmon Falls

  4. Water Quality Monitoring History • 1988-92 –Middle Snake River assessment units listed as water quality limited under CWA Section 303(d) • 12/95 – IPC filed FERC relicensing applications for Bliss, Upper Salmon Falls & Lower Salmon Falls; requested 401 water-quality certification • 4/97 - EPA approved TMDLs for CWA Section 303(d) listed waters • 5/97 - IPC filed Shoshone Falls relicensing application; requested 401 water-quality certification • 5/98 - IPC submitted temperature & dissolved oxygen (DO) monitoring plans to IDEQ • 8/02 - IDEQ approved monitoring plans • 8/04 - FERC issued project licenses • 12/04 – IPC/Agency consultation regarding temperature & DO monitoring plans • 3/05 - FERC approved monitoring plans requiring ten-minute temperature and DO data collection/reporting

  5. Monitoring Analysis • 1997-2011 • Range of flows (Period of Record high and low) • Temperature & DO comparisons to State Standards

  6. Analysis Conclusion “Water temperature and DO levels measured at the Middle Snake River hydroelectric projects are likely indicative of Snake river watershed conditions, which include the hydroelectric projects. As such, IPC believes continued water temperature and DO data collection as required by the FERC licenses would provide little additional information as data were collected across the recorded range of hydrologic conditions.”

  7. Change Process • Consulted w/designated agencies regarding temperature & DO monitoring plan modifications (IDEQ, IDFG, USFWS, NOAA Fisheries) • Submitted modified monitoring plans for agency review • Submitted plan modification requests to FERC • FERC approved modified monitoring plans - required trend data collection

  8. Hydroelectric Projects Trend Monitoring Sites

  9. Measures and Analytes • water temperature • dissolved oxygen • specific conductance • hydrogen ion concentration (pH) • turbidity • nitrate • ammonia • total Kjeldahl nitrogen • total phosphorus • dissolved orthophosphate • suspended solids • volatile suspended solids • total organic carbon • dissolved total organic carbon • chlorophyll a • phaeophytin • Escherichia coli bacteria

  10. Trend Monitoring Data Use • Annual reports & five-year trend analysis • Upper Snake Rock TMDL evaluation (IDEQ) • White Sturgeon Conservation Plan • Endangered & Threatened snails

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