The Apparent Successful Bidder will aggregate existing data and prepare preliminary induced seismic hazard assessments for three focus areas in the Cascade Mountains which specific locations will be agreed to by both parties in the resulting contract. Methodology for these assessments will follow Steps 1 and 5 of the Protocol for Addressing Induced Seismicity Associated with Enhanced Geothermal Systems (Majer and others, 2012). The geographic areas of each focus area are square in shape and approximately 440 square miles (282,000 acres) for Mount Baker, and 530 square miles (340,000 acres) each for the Mount St. Helens and the Wind River Valley locations. The exact size and shape of the focus areas may change under written contract amendment if DNR and vendor determine that an expanded area of analysis is needed and is within DNR’s budget. The expected project timeline will begin in January of 2026 and conclude in June of 2026. The Apparent Successful Bidder will develop a detailed project plan that includes a preliminary screening evaluation and a probabilistic model for induced seismicity for a range of potential geothermal development technologies. The preliminary screening evaluation should include a review of relevant regulations, determine the radius of influence for induced seismicity, identity the potential impacts of induced seismicity, establish the upper and lower limits of potential damage, and classify the overall risk for induced seismicity in each focus area following Steps 1 and 5 of the protocol developed by Majer and others (2012) and guidance prepared by the U.S. Bureau of Land Management (Beckers and others, 2018). In the technical report for each focus area, the preliminary screening evaluation should include: • Descriptions (including but not limited to the location, magnitude, and frequency of occurrence) for selected natural earthquakes and/or induced seismic events considered in the screening study...
