EXH1297052175

Haul Route and Borrow Areas 3 and 4 Third Runway Project Sea-Tac International Airport Seatac, Washington tT_ Deilvermo smarter SOlUtions Prepared for HNTB October 22, 2001 4978-52 AR 052175 1297 m im www. hartcrowser, corn Dehveflng $nlalTer Solutions Anchorage Subsurface Conditions Data Report Haul Route and Borrow Areas 3 and 4 Third Runway Project Boron Sea-Tac International Airport Seatac, Washington Chacago Prepared for HNTB _._r October 22, 2001 4978.52 .,rb,.,s ) .o Preparedby Hart Crowser, inc. ,o,,_ycity ReeseP. Hastings Ioe N. Mortice Ju..u SeniorAssociate SeniorStaffHydrogeologist Long Beach Portland Seattle 1910 Fairview Avenue East Seattle, Washington 98102-3699 Fax 206.328.5581 Te,2o,2_.,5_o AR 052176 CONTENTS Page INTRODUCTION 1 PURPOSE AND SCOPE 1 GENERALIZED GEOLOGIC DESCRIPTION AND SUBSURFACE 2 SOIL CONDITIONS Generalized Geologic Conditions 2 Subsurface Conditions 3 Generalized Hydrogeologic Regime 5 Hydrogeologic Conditions 6 Soil Infiltration Characteristics 8 USE OF THIS REPORT 9 REFERENCES 11 TABLES BorrowArea3 Water LevelData BorrowArea4 Water LevelData Summaryof InfiltrationTests FIGURES SiteLocation SiteExplorationPlan- BorrowAreas3 and4 SiteExplorationPlan- HaulRoute I-lydrogeologicCrossSectionA-A'- BorrowAreas3 and4 HydrogeologicCrossSectionB-B'- BorrowArea3 HydrogeologicCrossSectionC-C' - BorrowArea4 GroundwaterElevationContourMap - ShallowRegionalAquifer- BorrowArea3 GroundwaterElevationContourMap - BorrowAreas3 and4 APPENDIX A FIELD EXPLORATIONS METHODS AND ANALYSIS Explorations and Their Location A-1 The Use of Dual-Waft Percussion Hammer Drilling with Reverse Circulation A-2 The Use of Auger Borings A-3 Penetration Test Procedures A-3 Ha,iCrowser i4978-52October22,2001 rage AR 052177 CONTENTS (Continued) PaRe Groundwater Observation Well Installation A_ Excavation of Test Pits A.5 FIGURES A-1 Key to Exploration Logs A-2 through A-6 Boring Log A3-BB-98 through A3-B12-98 A-7 through A-11 Boring Log A3-B13-99 through A3-B17-99 A-12 through A-16…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]