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SURFACE-GROUNDWATER INTERACTIONS

Work Group Report

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STEP 2�CHARACTERIZE WATER RESOURCES, WATER QUALITY, & ECOLOGICAL ISSUES

Upland Recharge

Varies by watershed and hydrogeology

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UPLAND RECHARGE

  • Highest in the higher elevations
  • Most Recharge is locally to Streams

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LOWLAND RECHARGE

  • Seasonally Flooded Areas
  • Flood Irrigated Wet Meadows
  • Occasionally Flooded Areas
  • Different Contributions From Each Watershed

54,000 af./year

27,000 af./year

25,000 af./year

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RECHARGE UNKNOWNS

  • Effects of Beaver Reintroduction
  • Different Recharge Rates and Amounts in Different Areas of the Lowlands
  • Recent but Unavailable Information on the Blitzen River

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CRITICAL ISSUES���

  • Can Lowland Recharge be Enhanced?��Could Beaver Reintroduction Improve Upland Recharge?

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QUESTIONS?