TagPollution Control Hearings Board(1507)

Appearances: JOAN MARCHIORO; THOMAS J. YOUNG; ROGER PEARCE; STEVEN G. JONES; ERIK STOCKDALE; KELLY WHITING; GORDON WHITE; ELIZABETH LEAVITT; KEITH SMITH; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: ERIK STOCKDALE; KELLY WHITING; GORDON WHITE; ELIZABETH LEAVITT; KEITH SMITH | Exhibits: 1207 JARPA Application; 2062 Letter to Hart Crowser from Jim Kelley; 2130 Annual Stormwater Monitoring Report; 0262 U.S. Fish & Wildlife Service Biological Opinion; 1094 NPDES Permit

Appearances: PETER J. EGLICK; KEVIN L. STOCK; MICHAEL WITEK; HELSELL FETTERMAN; RACHAEL PASCHAL OSBORN; RICHARD A. POULIN; JEFF B. KRAY; JOAN MARCHIORO; THOMAS J. YOUNG; GILLIS E. REAVIS; ROGER PEARCE; STEVEN G. JONES; EDWARD O'BRIEN; CHING-PI WANG; KATIE WALTER; ERIK STOCKDALE; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: EDWARD O'BRIEN; CHING-PI WANG; KATIE WALTER; ERIK STOCKDALE | Exhibits: 0015 Email from Peter Kmet to Kevin Fitzpatrick 9-11-00; 0033 Email from Chung Yee to Kevin Fitzpatrick 9-11-00; 0022 Email from Chung Yee to Kevin Fitzpatrick 6-13-01; 0037 Email from Peter Kmet to Kevin Fitzpatrick 6-27-01; 2126 Ecology Implementation Memo No. 3, 11-24-93; 0607 Email from Chung Yee to Peter Kmet, 6-27-01; 0262 USFWS Biological Opinion; 0027 Email from Pete Kmet to Chung Yee 6/27; 0080 Declaration of Edward O'Brien; 0072 Agreed Order; 0532 Letter from Tom Fitzsimmons to Kevin Stock 4-11-01; 1254 Associates Earth Sciences Technical Memorandum - Anyalsis of Preferential Ground Water Flow Paths Relative to Proposed Third Runway

Appearances: PETER J. EGLICK,; KEVIN L. STOCK,; MICHAEL WITEK,; RACHAEL PASCHAL OSBORN,; RICHARD A. POULIN,; JEFF B. KRAY,; JOAN MARCHI ORO,; THOMAS J. YOUNG,; GILLIS E. REAVIS,; ROGER PEARCE,; STEVEN G. JONES,; KEVIN FITZPATRICK; DAVE GARLAND; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: KEVIN FITZPATRICK; DAVE GARLAND

Appearances: PETER J. EGLICK,; KEVIN L. STOCK,; MICHAEL WITEK,; HELSELL FETTERMAN; RACHAEL PASCHAL OSBORN,; RICHARD A. POULIN,; JEFF B. KRAY,; JOAN MARCH IORO,; THOMAS J. YOUNG,; GILLIS E. REAVIS,; ROGER PEARCE,; STEVEN G. JONES,; BOARD'S ORDER ON MOTION TO EXCLUDE; APPELLANT'S MOTION TO EXCLUDE; BOARD'S RULING ON MOTION TO EXCLUDE; GREG WINGARD; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: GREG WINGARD

Appearances: PETER J. EGLICK; KEVIN L. STOCK; MICHAEL WITEK; HELSELL FETTERMAN; RACHAEL PASCHAL OSBORN; RICHARD A. POULIN; JEFF B. KRAY; THOMAS J. YOUNG; GILLIS E. REAVIS; ROGER PEARCE; STEVEN G. JONES; DAN SWENSON; ROBERT BARWIN; GEORGE SCHLENDER; WILLIAM ROZEBOOM; CLIFFORD DOUG RUSHTON; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: DAN SWENSON; ROBERT BARWIN; GEORGE SCHLENDER; WILLIAM ROZEBOOM; CLIFFORD DOUG RUSHTON | Exhibits: 1178 Pacific Groundwater Group SeaTac Runway Fill Hydrologic Studies; 0705 Photograph of Failure in the Fill Embankment; 0578 Application for Change/ Transfer of Water Right; 0758 WRATS Report; 2132 Public Notice of Application for Permit; 0757 Guide to Instream Flow Setting in Washington State; 0426 Storm Water Receiving Environment Monitoring Report; 0006 Annual Stormwater Monitoring Report for Seattle-Tacoma International airport; 1128 Cosmopolitan Engineering Group Dissolved Oxygen Deicing Study

Appearances: PETER J. EGLICK; KEVIN L. STOCK; MICHAEL WITEK; HELSELL FETTERMAN; RACHAEL PASCHAL OSBORN; RICHARD A. POULIN; JEFF B. KRAY; JOAN MARCHIORO; THOMAS J. YOUNG; GILLIS E. REAVIS; ROGER PEARCE; STEVEN G. JONES; ANN KENNY; THOMAS LUSTER; AMANDA AZOUS; DYANNE SHELDON; NUMBER DESCRIPTION IDENTIFIED ADMITTED | Witnesses: ANN KENNY; THOMAS LUSTER; AMANDA AZOUS; DYANNE SHELDON | Exhibits: 0200 Resume' of Thomas R. Luster; 0201 2-11-97 Memo to file from Tom Fitzsimmons re Delegation of Authority; 0202 11-25-98 Memo from Paul Ehlers to A1 Jacobs; 0216 10-18-00 Email from Tom Luster to Ray Hellwig; 0005 Chapter 173-201A WAC; 0221 11-7-00 Email from Ray Hellwig to Kevin Fitzpatrick; 0211 7-20-98 Letter to Port from Ecology i011 Parametrix Summary of Wetland Mitigation; 2014 Natural Resource Mitigation Plan November 2001; 2025 How Ecology Regulates Wetands, April 1998; 0600 4-6-98 Memo to Jim Kelley from Paul Tappel; 2132 Public Notice of Application

3.2 Ground Anti-Icing/Deicing (Roads and Paved Surfaces) 12 3.3 Snow Storage 14 3.4 Spills 15 3.5 Construction Sites 16 3.6 Erosion in Non-Construction Areas 18 3.7 Vehicle Washing and Maintenance 19 3.8 I,and,scapeManagement 20 3.9 AOA Maintenance 23 3.10 Inappropriate Connections and Discharges 24 3.11 T_rary Storage of Surplusand Used Materials 24 3.12 Tenant Activities in SDS Areas 25 3.13 Other Operational BMPs 27 3.14 StormwaterManagement 29 3.15 Completed BMPs 30 3.16 Identification of New BMPs 30 3.17 Emergencies or Other Unscheduled Activities 31 November1998(Revision 1 - April1999) ii 976079.23 AR 052596 4. SDS INSPECTIONS 4.1 Inspections Required by the NPDES Permit 32 4.2 OngoingInspections 34 5. REFERENCES 35 FIGURES FIGURE 1 APPENDICES A. Excerpts from the Sea-Tac InternationalAirportNPDES Permit B Incidents of Noncompliance C Inspections LIST OF TABLES Follows Page Table 1 StormwaterDrainage System Drainage Areas 9 Table 2 Industrial Activities OccurringWithin Each StormDrainage System Basin 10 Table 3 Operational and Source Control BMP Summary 11 Table 4 Pesticide andHerbicide Use 20 Table 5 Summaryof Completed BMPs 30 Table 6 Identification of New BMPs 30 November1998 (Revision1 - April 1999) iii 976079.23 AR 052597 CERTIFICATION Any person signing a document under this section shall make the following certification: "I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or person who manage the system or…

Embankment Fill Modeling in Support of Low Streamflow Analysis Pmpa_ fc_, Port of Seattle P.O.Box 68727 Seattle, WA 98168 Preparedby: Pacific Groundwater Group 2377 Eastlake Avenue East,,#200 Seattle, WA 98102 • (206) 329-0141 ' www.pgwg.com November 27, 2001 JE0105 AR 052549 Sea-Tac Third Runway Embankmenl Fill Modeling Table of Contents 1. INTRODUCTION ................................................... 1 I. I Scope and Approach....................................................................................................................... ! 2. EXTENT OF F1LLMOD_ BY HYDRUS-SLICg ............................... 3 2.1 GeoLulphicExtent of Fill............................................................................................................... 3 2.2" Thickness of Fill ............................................................................................................................ 3 2.3 B_m Boundari_ andAreaCalcul_ons ........................................................................................ d 3. MODELING OF INFILTRATIONWITH RUNOFFANDEVAPOTttANSPmATION....... 4 3. l HSPFInputandRunoffC._iculatiom............................................................................................ 4 Effective Recharge......................................................................................................................... 6 4. MODgtJNG OF VERTICAL FLOW THROUGH EMBANKMENT lqu .............. -........... 6 4.1 Summary.ofGtmm¢ HydrusModel ............................................................................................. 6 4.2 Chamctmzabon of Fill as Soil.................................................................................................... 6 4_..1 GeneralFill ............................................................................................................................. 7 4.2.2 Type l Fill .............................................................................................................................. 7 4.3 Repres_taxion of Fill in Hydrus................................................................................................. 7 4.4 SpqriJlDiscrebzmon of HydrusModels ................................................................................... 9 4.5 Temporal Discr=iz_on ............................................................................................................... 9 4.6 _-sutts............................................................................................................................................9 5. MODELING SATURATED FLOW BENEATH _ EMBANKMENT FILL ............ 10 5.1 Cross Section 1 and Slice I ........................................................................................................... 12 5.2 Cross Section 2 and Slice 2........................................................................................................... 12 5.3 Cross Section 3 and Slice 2...................................................................................................... ..... I2 5.4 IndividualSlice Model Results..................................................................................................... 13 5.5 Methodfor Intetu'atingSlice Results OverEntireFill Areas ........................................................ 14 5.6 Effective Bum Width for Walker Creek...................................................................................... 15 5.7 Effective Basra Widthfor MillerCreek........................................................................................ 15 5.8 Integrated Flow Estimates for Walker Creek Fill ......................................................................... 16 5.9 Intetu'atod Flow_ for Miller CreekFill ........................................................................... 16 - 5.10 Use of IntegramflFlow Estinmtes ................................................................................................. 17 6. REFERENCES.......................................................................................... 17 Pagei AR 052550 Sea-Tac Third Runway Embankment…

This report describesthe engineering process used to address design issues related to soil conditions, groundwater, and potential earthquakes for the proposed Third Runway at SeatlJe-Tacoma International Airport (STIA). Overall, the runway project will include placement of 17,000,000 cubic yards of compacted fill, 3,000,000 cubic yards of excavation, and construction of three "mechanically stabilized earth" (MSE) retaining walls that range from 50 to 135 feet in maximum heighL The executive summary of this report describes its purpose, general contents of the report, and results of the engineering analysis. A key part of the work described herein has been the involvement of an independent technical review board composed of distinguished experts to provide input into the geotechnical design process. The main part of this report summarizes the geotechnical data collection and engineering analysesaccomplished over a multi-year period by the Port of Seattle. The Seattle District, US Army Corps of Engineers (Corps) requested this executive summary as part of its review of the Third Runway Project. Scope and Purpose of This Report The scope of this report is to address the following: • Introduce the reader to the design team and explain what each firm's role has been, including the involvement of outside reviewers; • Describe the main features of the embankment and MSE retaining walls that are addressed in this report; • Summarize information that has been collected on soil and groundwater conditions at the Third Runway site; • Generally describe how the Port has studied the risk posed by earthquakes, and…

Appearances: PETER J. EGLICK; KEVIN L. STOCK; MICHAEL WITEK; HELSELL FETTERMAN; RACHAEL PASCHAL OSBORN; RICHARD A. POULIN; JEFF B. KRAY; JOAN MARCHIORO; THOMAS J. YOUNG; GILLIS E. REAVIS; ROGER PEARCE; STEVEN G. JONES | Witnesses: SALLY NELSON; ANN KENNY | Exhibits: 1068 ACC Interlocal Agreement; 1252 Motion for Voluntary Dismissal; 0446 7/29/01 Email from Ann Kenny to Ray Hellwig; 0002 8/10/01 401 Certification; 0001 9/21/02 401 Certification; 0451 Excerpt from Water Quality Certification; 0262 USFW Biological Opinion