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Climate Impacts on Drinking Water
Supply and Demand

Climate change is projected to exacerbate the water challenges that the Mid-Coast region already experiences. When it comes to drinking water, climate change may add stress to drinking water systems by affecting the amount of water that is available (the water supply) and the amount of water that is used (the water demand), particularly during times of year when water use is typically highest. 

Mid-Coast Water Providers
Community water systems typically develop estimates of current water use and projected future demands as a part of their water planning efforts. These estimates may be contained in Water Management Conservation Plans, Water System Master Plans, or similar planning documents. Smaller non-municipal water systems (e.g., smaller water districts) may not maintain estimates of current water use or future demand projections.

The Water Action Plan identifies a need to develop an updated defensible projected future demand for community water systems in the region, along with an assessment of their ability to meet those demands with current sources . The assessment should account for the potential for reductions in water supply and increases in water demand resulting from climate change impacts. Understanding projected future supplies, demands, and deficits will help community water systems assess and select actions to meet water needs for their individual service areas and the region as a whole.

MidCoast Water Map.jpg

Mid-Coast Water Providers


  • Fall Creek Water District


  • Bless Your Heart Baking and Cafe

  • Fir Ridge Campground


  • City of Depoe Bay


  • Kernville-Gleneden-Lincoln Beach Water District


  • Lincoln City Water District

  • Oregon Parks and Recreation Department HB Van Duzer State Park

  • Lower Siletz Water System

  • Calkins Acres Improvement Inc.


  • City of Newport

  • Oregon Parks and Recreation Department Ellmaker State Park

  • Oregon Parks and Recreation Department Beverly Beach State Park

  • Beverly Beach Water District

  • Bay Hills Water Association

  • Carmel Beach Water District

  • Lincoln County Parks - Moonshine Park

  • Mad Dog Country Tavern

  • Sawyers Landing RV Park


  • Hiland WC - Echo Mountain, Boulder Creek, Bear Creek

  • Westwind Stewardship Group

  • Otis Junction Water system

  • Salmon River Mobile Village

  • Salmon River RV Park

  • Lincoln City KOA

  • Guptil Subdivision



  • Otter Rock Water District

  • Johnson Creek Water Service

  • Inn at Otter Crest

  • Sea Crest


  • US Forest Service Cape Perpetua Visitor Center


  • Hiland WC - Riverbend​


  • Seal Rock Water District


  • Drift Creek Camp


  • City of Siletz


  • Hiland WC - Westwood

  • US Forest Service Blackberry Campground


  • Toledo Water Utilities

  • Eddyville Charter School

  • Olalla Valley Golf Course


  • City of Waldport

  • Kozy Acres Water System

  • Drift Creek Landing

  • Taylors Landing RV Park

  • Riverside Mobile Park

  • King Silver RV Park

  • Rovers RV Park

  • Happy Landing RV Park/Marina


  • Southwest Lincoln County Water PUD

  • City of Yachats

Large Water Provider Overview

Large Water Provider Table.PNG

Click on the provider's name to see projected streamflow changes and demand projections for the Mid-Coast's large water providers.

Click the thumbnail below to see projected demands in the Mid-Coast region as a whole. 


For a detailed explanation of the methods used in developing these projections, please visit the Data and Methods webpage.

For more information, please contact:

David Rupp, Oregon State University 

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