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Hood River Basin Water Study

Hood River Basin Water Study. Agenda 1. Study Overview - Partners - Goals - Study flow chart 2. Results - Hood River Basin Water Use - Water Conservation Potential - Water Storage Assessment - Projected Climate - Hydrology

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Hood River Basin Water Study

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  1. Hood River Basin Water Study Agenda 1. Study Overview - Partners - Goals - Study flow chart 2. Results - Hood River Basin Water Use - Water Conservation Potential - Water Storage Assessment - Projected Climate - Hydrology - Groundwater - Water Resource - Fish Habitat 3. Recommendations

  2. Overview - Partners 1. United States Bureau of Reclamation (BOR) $250,000 in-kind contribution through WaterSMART Basin Study program. 2. Oregon Water Resources Department (OWRD) $250,000 Water Conservation, Reuse, and Storage Grant. - Watershed Professional Network (Water Use, Water Conservation, PM) - Normandeau Associates (IFIM) - USGS (Groundwater) - HRC (Mattie)

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

  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. 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

  6. Water Use Assessment - Summary Potable water use 8 – 13 CFS. 6 districts, The Dalles biggest annual user Irrigation water use 0 - 230 CFS. 5 districts, ~20,000 acres Hydropower water use 80 – 140 CFS. Peaks in winter and spring, both FID/MFID reduce in irrigation season Industrial water use small (< few CFS) Limited industrial water users Instream has 8 water rights, 2 instream flow agreements Instream lower priority water rights dates, often not met

  7. Water Use Assessment – Potable

  8. Water Use Assessment – Potable

  9. Water Use Assessment - Irrigation

  10. Water Use Assessment - Hydropower

  11. Water Use Assessment - Hydropower

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

  13. 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

  14. Water Conservation Assessment - Conclusions Potable: conservation potential ~2-3 CFS • Can be achieved through toilet and shower retrofits, outdoor use reductions, and implementing rate-structure based Irrigation: conservation potential ~40 CFS • Achieved through sprinkler retrofits (16 CFS) and piping (20-30 CFS) Hydropower • Water conservation leads to ~$20K of addt’l revenue. Bypass reach still dewatered, but increased flow downstream of tailrace Sediment • Active technologies very expensive for high flow rates. Gravity settling should be used for removing sediment from irrigation supply

  15. Water Conservation Assessment - Potable

  16. Water Conservation Assessment - Potable

  17. Water Conservation Assessment - Irrigation

  18. Water Conservation Assessment - Irrigation • Potential water savings from converting impact to micro sprinklers: • 49% of impact sprinklers converted • impacts using 2.4 feet/year (SWCD) • micro sprinklers using 1.5 feet/year (SWCD) • $1,200/acre to convert to micro (IrriNet) ~ $0.4 M per CFS

  19. Water Conservation Assessment - Irrigation • Potential from pipe and/or operational changes: • DID piping of main distribution system • EFID piping of canals eliminating seepage and 60 overflow points

  20. Water Conservation Assessment - Irrigation

  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? Existing WR Infrastructure Existing WR Operations Existing Water Demands Water Rights Potential new storage site(s) 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. Water Storage Assessment Kingsley Reservoir (upper)

  23. Water Storage Assessment

  24. 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

  25. Climate Change - temp & precip projections 3 different climate scenarios

  26. 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

  27. Surface Water Model - Snow

  28. Surface Water Model - Streamflow

  29. 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

  30. Groundwater – MODFLOW model Wells used in MODFLOW model

  31. Groundwater – MODFLOW model

  32. Groundwater – MODFLOW model Increased GW pumping scenario:

  33. 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

  34. Water Resource Modeling - Summary 1. Potable and irrigation have higher priority water right than instream, therefore: -small/limited potable and irrigation water shortages -significant decreases in summer instream streamflow 2. Winter streamflows higher in future, not impacted by Water Resource alternatives. 3. Summer streamflows lower in future. Consumptive use magnifies natural decreases. 4. Higher winter reservoirs, lower summer reservoir levels. 5. Output from Water Resource model used in IFIM study.

  35. Water Resource Modeling - Schematic

  36. Water Resource Modeling - Alternatives

  37. Water Resource Modeling - Results Different climate scenario Different WR alternative

  38. Water Resource Modeling - Results

  39. Water Resource Modeling - Results

  40. Water Resource Modeling - Results

  41. Water Resource Modeling - Results

  42. Water Resource Modeling - Results

  43. Water Resource Modeling - Results

  44. 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

  45. 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

  46. Upper East Fork Chinook AWS

  47. Water Resource Modeling - Alternatives

  48. Climate/demand/conservation/storage Climate/demand/conservation Climate only Historical Climate/demands

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