S3 Conceptual Design Proposal: DUSEL-Cascades, a Horizontal Access Facility S3 Proposal Proposal budget Appendix A: 2004 Geotechnical Report Appendix B: Estimator's details Appendix C: Surface Campus estimate (Turner Construction with UW Reconciliation) Appendix D: Low-Level-Counting Facility Plan Appendix E: Collaboration Appendix F: URA Letter S3 NSF Reverse Site Visiting Committee Presentations (19 April 07) Agenda Project Overview Subsurface and Environmental Characterization Supplemental Material: DUSEL-Cascades S1 Geoscience and Geomicrobiology Opportunities Geotechnical Characterization Supplemental Material: Large Detector Construction DUSEL-Cascades Engineering Approach Surface Campus and Outreach Facilities/Vision Superbeam: DUSEL-Cascades Stage I LB attributes Stage II: Depth, international implications, and Majorana Stage I/II: Geomicrobiology The NSF/State/Science Community Interface S3 NSF Reverse Site Visiting Committee Supplementary Materials (19 April 07) Reverse Site Visit Committee Questions and Answers 1) Escapeways and refuges 2) Scope, cost, and schedule decisions and impacts 3) Building the DUSEL community post S3 4) Local community interactions 5) Emergencies and access to the underground 6) Highway 2 closures 7) Impact of a Cascade Tunnel accident or incident References on Depth Requirements for MegaDetectors Hank Sobel's Analysis (uses peak depths, where Kamioka=2.7kmwe and Cascades=2.91kmwe) Collaboration's Analysis (uses equivalent flat depths where Kamioka=2.03kmwe and Cascades=2.12kmwe) Pacific Science Center/DUSEL/LIGO/Neptune Draft Proposal Snohomish County Surface Campus Site Search Letter from County Executive Aaron Reardon Site and Zoning Information S3 NSF Site Visiting Committee Presentations (14 March 07) Agenda Project Overview Subsurface Characterization: Geological Supplementary Slides, Subsurface Characterization: Geologic Subsurface Characterization: Geotechnical and Site Construction History Engineering Design of DUSEL-Cascades TBM Options and Schedules Outreach and Education Facilities Management, Site Legal Status, Permitting, Risk Management, ES&H, Partnerships Pioneer Tunnel Presentation Photos S3 NSF Site Visiting Committee Supplementary Materials (14 March 07) Letter of Support, Matt Rose, CEO, Burlington Northern Title Search: BNSF Section 23 Underground Rights Lee Picket: Photo Archive of Original Cascade and Pioneer Tunnel Construction Skykomish 2010 TBM estimate, Robbins USA Collaboration Response to Committee Questions Bus Tour Geology Papers Frontier Kemper Hoist and Shaft Re-examination 1) Main Hoist Description 2) Mining Hoist Description

The collaboration would like to thank those organizations whose support allowed our group to prepare and present our S3 proposal: Washington State Governor's Office and Department of Commerce, Trade, and Economic Development Universities Research Association, Inc. UW College of Arts and Sciences Microsoft Corporation Institute for Nuclear Theory UW Physics Department Pacific Northwest National Laboratory