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  1. Hood River Basin Study:Climate Change Impacts to Streamflow and Opportunities for a Sustainable Future

  2. Partners 1. Hood River Water Planning Group Formed in 2008: includes HRC, CTWS, HRWG, EFID, FID, MFID, ODFW, DEQ, NMFS, other. • 2. United States Bureau of Reclamation • $250,000 in-kind. 3. Oregon Water Resources Department $250,000 cash.

  3. Goals Evaluate: 1. Current and future water demands. 2. Water conservation opportunities. 3. Groundwater availability. • 4. Impacts to streamflow from climate change. • 5. Impacts to fish habitat from climate and water conservation alternatives. • 6. Alternatives to maintain viable future water supply.

  4. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  5. Water Use Assessment – Potable

  6. Water Use Assessment - Irrigation Farmers Irrigation District

  7. Water Use Assessment - Hydropower

  8. Water Use Assessment - Hydropower

  9. Water Use Assessment - Hydropower

  10. Water Use Assessment - Instream • 8 instream rights • (priority dates from • 1983-1998) • 2 instream flow agreements • (no priority dates)

  11. Hood River Basin Study – Instream

  12. Hood River Basin Study – Instream

  13. Hood River Basin Study – Instream

  14. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  15. Water Conservation Assessment - Potable

  16. Water Conservation Assessment - Irrigation  Impact sprinklers on handlineSolid set micro sprinkler  Open canal New pipe project

  17. Water Conservation Assessment - Irrigation

  18. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  19. Water Storage Assessment

  20. Water Storage Assessment • Notes: • Cost depends on source of material. • Release rate calculated on 3 month release • Cost/cfs based on average cost and 3 month release

  21. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  22. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  23. Climate Change - temp & precip projections for years 2030-2060 3 different climate scenarios

  24. Surface Water Model - Snowpack

  25. SurfaceWater Model - Snowmelt

  26. SurfaceWater Model – Glacial melt

  27. Surface Water Model - Streamflow

  28. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  29. Water Resource Modeling - Alternatives

  30. Water Resource Modeling - Results Impact from climate scenarios

  31. Water Resource Modeling - Results Impact from water management alternatives

  32. Water Resource Modeling - Results

  33. Water Resource Modeling - Results

  34. Water Resource Modeling - Results

  35. Water Resource Modeling - Results

  36. Water Resource Modeling - Results

  37. Water Resource Modeling - Results

  38. Overview of Water Planning Study Climate Change Models 3 sets of Projected Meteorological Data Historical Meteorological Data Historical Precipitation Data Water Use Assessment Water Conservation Assessment Water Storage Assessment Surface Water Model (DHSVM) Groundwater Model (MODFLOW) • Future Water Demands • Water conservation • Population change • 4 Different Scenarios: • 1 Historical streamflow timeseries • 3 Projected streamflow timeseries Well pumping scenario? ASR scenario? Potential new storage site(s) Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Water Resources Model (MODSIM) Instream Flow AWS / Q relationships • Evaluation of WR Metrics under Each Alternatives: • Deliveries (shortfall amount, duration, % of time, cost) • Reservoir volumes • Hydropower Production • Streamflows Habitat Suitability Analysis

  39. Instream Flow Assessment • IFIM study of 5 reaches: • Neal Creek • East Fork (upper) • East Fork (lower) • Green Point • West Fork • Species of concern: • Chinook • Coho • Steelhead • Bull trout

  40. Instream Flow Assessment Area Weighted Suitability (AWS) = Index of amount of habitat

  41. Base (WY 1980-2010)

  42. Base (WY 1980-2010)

  43. Base (WY 1980-2010)

  44. Existing (WY 2031-2060)

  45. Demands (WY 2031-2060)

  46. Conservation (WY 2031-2060)

  47. Storage (WY 2031-2060)

  48. AWS changes (lowest 20% of streamflow, median climate)

  49. Potential Actions

  50. Recommendations • Implement irrigation efficiency upgrades • Reduce or eliminate overflows and canal seepage in EFID • Further evaluate expanding storage at Green Point and Laurance Lake • Collect data for use in future analysis of reservoir storage in EFID • Collect/use additional data for optimal streamflows for aquatic habitat • Expand groundwater data collection • Implement projects for increased summer streamflow and flexibility • Refine modeling that was done as part of this Basin Study -particularly glacier, groundwater, stream temperature • Other?