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CONCRETE TEST REPORT07/10/2006Project Name: UNC CAMPUS AIRPORT DISPOSALClient: ARCADISS&ME Project No.Laboratory No.FIELD INFORMATIONFIELD TEST DATADate Sampled: 06/08/2006Mix Design No.: CH-66 - CHANDLER CONCRETEAdmixture:Design Compressive Strength: 4,000 psi based on 28 days of ageSampled By: B.SWARRDate Received in Lab: 06/09/2006Concrete Supplier:Truck No.:Ticket No.:Time Batched:Time Sampled:I053-06-1718726Test specimens fabricated in general accordance with ASTM C-31CHANDLER158136778307:5008:35Size of Load: 9.0CYWater Added on Site: I0galAuthorized by: SUPPLIERSlump: ASTM Cl43Field:Specified:3 3/44.5 MAXAir Content: ASTM C23 IField:Specified:0.4%0-3%Temperature: ASTM CI064Concrete:Air:81 F72 FFresh Unit Weight: ASTM Cl38146.2 pcfCONCRETE PLACEMENT LOCATIONSLAB A TO B FROM I TO 2SAMPLED @ IS'W & S'S FROM NE CORNER OF SLABLABORATORY COMPRESSIVE STRENGTH TEST RESULTS(6 /-0.02" x 12" Cylinder tested in accordance with ASTM C39 unless otherwise 00607/06/200607/06/200608/03/2006TypeCuring··- ··· --·-- -- ·-···-#-- . ---- ··IF/6LIF/27LIF/27LIF/SSLDiameter(inches)----·- OLD1.001.001.001.003,2104,4104,520Cone & SplitCone&SplitCone& Split.5.975.975.976.00Notes: F Field Cured, L Lab CuredAverage 28 day strength 4,470 psiComments:Distribution: MR. JIM SHILLIDAY, IJJ, LG, MR. WHIT RAWLS, MS. NICOLE BRADLEYMR. MAL KRAJAN, A.E.T.Name (Technical Responsibility);rJ-/ -- /t:W1 -"""----'1'--/.J QUALITY SYSTEMS COORDINATORSignatureS&ME, Inc. 320 I Spring Forest Road, Raleigh, North Carolina 276 I6, (919) 872-2660Position

IRECEIVED S&MEJUL - 7 7006CONCRETE TEST REPORT,\JCADISGeragi'.iay &Miilcl06/26/2006Project Name: UNC CAMPUS AIRPORT DISPOSALClient: ARCADISS&ME Project No.Laboratory No.FIELD INFORMATIONFIELD TEST DATADate Sampled: 05/23/2006Mix Design No.: CH-39 - CHANDLER CONCRETEAdmixture:Design Compressive Strength: 4,000 psi based on 28 days of ageSampled By: A.RIKHEYDate Received in Lab: 05/24/2006Concrete Supplier:Truck No.:TicketNo.:Time Batched:Time Sampled:1053-06-17186 I 7Test specimens fabricated in general accordance with ASTM C-31CHANDLER137136195502:2203:14Size of Load: 7.SCYWater Added on Site: 0 galAuthorized by:Slump: ASTM C143Field:Specified:4 1/24.5 MAXAir Content: ASTMC231Field:Specified:2.1%0-3%Temperature: ASTMC1064Concrete:Air:76 F71 FFresh Unit Weight: ASTM Cl38146.4pcfCONCRETE PLACEMENT LOCATIONSE FOOTINGSAMPLED @ 3'W & 2'S FROM NE CORNER OF SE FOOTINGLABORATORY COMPRESSIVE STRENGTH TEST RESULTS(6 /-0.02" x 12" Cylinder tested in accordance with ASTM C39 unless otherwise ,290HOLD(lbs)·- -- ·---···----·-----· ·· UDFactorFractureTypeStrength(psi)-·-·-- -·- . ., - · -- --- -3,0304,7004,4401.001.001.001.00Cone & SplitCone & SplitCone & SplitAverage 28 day strength 4,570 psiNotes: F Field Cured, L Lab CuredComments:Distribution: MR. JIM SHILLIDAY, Ill, LG, MR. WHIT RAWLS, MS. NICOLE BRADLEYMR. MAL KRAJAN, A.E.T.1/;J · A w1; - / 7-;)QUALITY SYSTEMS COORDINATORName (Technical Responsibility)lPositionSignatureS&ME, Inc. 3201 Spring Forest Road, Raleigh, North Carolina 27616, (919) 872-2660

S&MERECEIVEDjUN 1 9 2006ARCADJS Geraghty & Mme::June 5, 2006Arcadis801 Cotporate Center DriveSuite 300Raleigh, North Carolina 27607ATTENTION:Mr. Jim Shilliday, III, LGReference:SOIL DENSITY TEST RESULTSUNC Campus Aitport Disposal AreaChapel Hill, North CarolinaS&ME Project No. 1053-06-171Dear Mr. Shilliday:Please find enclosed the results of field density test performed on May 22, 2006 at the abovereferenced project.The above referenced in-place field density tests were obtained using general guidelines from ASTMD-1556, "Test Method for Density and Unit Weight of Soil in Place by the Sand Cone Method" andASTM D-4959, "Test Method for Determination of Water (Moisture) Content of Soil by DirectHeating Method". Laboratory testing was performed in general accordance with the specifiedmoisture-density relationship listed on the attached Summary of Density Test Results.If you have any questions or comments concerning these results, please do not hesitate to contact ouroffice.Sincerely,S&ME, Inc.Ms. Nicole BradleyProject ManagerNB/jpEnclosure(s)cc:Mr. Whit Rawls-ArcadisS:\PROJECTS\2006\06-171 UNC Campus Airport Disposal Area\Construct\Density Tests\06-171 May22(06).docS&ME, INC. / 3201 Spring Forest Road/ Raleigh, NC 27616 / p 919.872.2660 f 919.876.3958 / www.smeinc.com

SIMESummary of Density Test ResultsPage No.Report Date: June 05, 2006ProjectNo.: 1053-06-171Project Name: UNC CAMPUS AIRPORT DISPOSALClient: ARCADIS, 801 CORPORATE CENTER DRIVE, SUITE 300, RALEIGH, NORTH CAROLINA 27607TestNo.--·I2In-Place Density TestDateTypeDryDensity05/22/0605/22/06D 1556D 155693.396.6MoistureContent28.527.8Check Plug DataDryDensity89.7CompactionReference d28.428.495.095.0!100 100 Elevationor StoneDepthLocationPercentIn-PlaceBLDG PAD; CENTER OF BLDG PADBLDG PAD; CENTER OF BLDG PAD-l.5'SGIlIII!IIIII* Failed Specified Compaction, ** Failed Specified Moisture ContentAll Test Locations and Elevations are ApproximateNotes:References: ASTM D 1556: Density and Unit Weight of Soil In Place by the Sand Cone Method, ASTM D 698: Laboratory Compaction Characteristics of Soil Using Standard EffortDistribution: MR. JIM SHILLIDAY, Ill, LG, MR. WHIT RAWLS, MS. NICOLE BRADLEYMS. NICOLE BRADLEYName (Technical Responsibility) L,,, .---SignatureS&ME, Inc. 3201 Spring Forest Road, Raleigh, North Carolina 27616, (919) 872-2660PROJECT MANAGERPosition

S&MEMay 12, 2006Arcadis801 Corporate Center DriveSuite 300Raleigh, North Carolina 27606Attention:Reference:Mr. Jim Shilliday, III, LGLABORATORY TEST RESULTSUNC Airport Disposal AreaChapel Hill, North CarolinaS&ME Job No. 1053-06-171Dear Mr. Shilliday:S&ME, Inc. has completed laboratory testing on materials from the UNC Airport Disposal Areaproject in Chapel Hill, North Carolina. Two bulk samples were obtained and delivered to ouroffice. One sample was obtained from a hand auger boring for classification testing and the othersample was obtained from American Stone for Moisture-Density Relations testing. This reportpresents results of laboratory testing.LABORATORY TESTINGLaboratory testing of soil samples were conducted in general accordance with ASTM D-698,''Standard Test Method for Laboratory Compaction Characteristics of Soil Using Standard Effort,"ASTM D-2216, "Standard Test Method for Laboratory Detem1ination of Water (Moisture) Contentof Soil and Rock by Mass," ASTM D-854, "Specific Gravity of Soils", ASTM D-2487 "StandardPractice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)."ASTM D-422 "Standard Test Method for Particle-Size Analysis of Soils," and ASTM D-4818,"Standard Test Method for Liquid Limit, Plastic Limit, and Plastic Index of Soils."S&ME, INC. / 3201 Spring Forest Road / Raleigh, NC 27616 / p 919.872.2660t 919.876.3958 / www.smeinc.com

Results of Laboratory TestingClassification Sample Numbers 1 through 7 (5/02/2006)Sam's Club #4946Rocky Mount, North CarolinaS&ME Project Number 1053-06-070May 8, 2006The sample obtained for classification testing (HA-1, Sample 1) was classified in general accordancewith ASTM D-2487 "Standard Practice for Classification of Soils for Engineering Purposes (UnifiedSoil Classification System)." This sample classifies as sandy silty clay (CH) with a liquid limit of78,a plastic limit of 34, and a plastic index of 44. Grain size analysis results indicate fines contents(passing the sieve no.200) of 89.6 percent ofthe total sample.Laboratory Test results indicate the sample obtained for Moisture-Density Relations testingconsisted of sandy clayey silt with gravel (visual). The Moisture-density Relations indicate amaximum dry density (MDD) of96.3 pounds per cubic foot (PCF) with an optimum moisturecontent of 25.3 percent. The natural moisture content was approximately 26.9 percent.We have attached laboratory test results for your review. S&ME, Inc. appreciates the opportunityto be of service to you on this project. If you have any questions concerning this report, pleasecontact our office.Sincerely,S&ME, Inc.d aja . - - apQuality Systemanager erConstruction Services ManagerEnclosuresS:\PROJECTS\2006\06-171 UNC Campus Airport Disposal Area\Construct\Laboratory\Lab Report# I 05-05-2006.doc2

Laboratory Record Version 4.2SIMEParticle Size Analysis of SoilsASTMD422Project#: 1053-06-171Test Date(s):Project Name: UNC Airport Disposal AreaReport Date:Client Name:ArcadisClient Address: 801 Corporate Center Drive, Suite 300, Raleigh, North Carolina 27606Boring#:HA-1Sample #: 1Location:Hand Auger BoringSample Description:Orange Brown Fine Sandy Silty CLAY (CH)Sample Date:Depth (ft):04/28 - 05/02/200605/02/200604/28/2006-1.0'NaturalMoisture ContentTare#37Tare Number37112.51Tare WeightA112.51Wet Weight Tare Wt.364.03A Tare WeightB298.84Dry Weight Tare Wt.298.84B Total Sample Dry Wt. Tare Wt.CWater Wt. (B-C)186.3365.19DC Total Sample Dry Weight 6.33DE89.4%Moisture Content (100 x DIE)(%)35.0%E Percent Passing #200 (1-D/C)xl00Percent PassingSieve Size (mm)Sieve SizeRetained WeightPercent RetainedTotal 0.4%19.4589.6%Notes:Maximum Particle SizeGravel3/8" 75 mm and 4.75 mm (#4)0.1%Apparent Relative DensityNDCoarse Sand 4.75 mm and 2.00 mm (#10)0.3%Liquid LimitFineness Modulus78Medium Sand 2.00 mm and 0.425 mm (#40)1.1%Cu D60/Dl0:Plastic Limit34 0.425 mm and 0.075 mm (#200)Fine Sand8.9%Plastic Index44% Silt and Clay 0.075 mmCc (D30)2/ (D10xD60):89.6%Particle Size Analysis / Without Hydrometer AnalysisDescription of Sand & GravelHard & Durable SoftND Not determinedD30 D60D50 Angular !RIRounded !RIWeathered & Friable!RIOrganic ContentNDD90ASTM D 422: Particle Size Analysis of SoilsHydrometer portion oftest method not utilized.ASTM D 421: Dry Preparation of Soil SamplesASTM D 854: Specific Gravity of SoilsASTM D 4318: Liquid Limit, Plastic Limit, & Plastic Index of SoilsASTM D 2487: Classification of Soils for Engineering Purposes (Unified Soil Classification System)Technician Name:Technical Responsibility:Chana SavanapridiMal KrajanSignature ; ·S&ME, INC.3109 Spring Forest Road, Raleigh, N.C. 27616HA-1 Classification

Laboratory Record Version 4.2S&MEParticle Size Analysis of SoilsASTMD422S&ME Project #:Project Name:Client Name:Client Address:1053-06-171Report Date:Test Date(s):05/02/200604/28 - 05/02/2006Sample Date:Depth (ft):04/28/2006-1.0'UNC Airport Disposal AreaArcadis801 Corporate Center Drive, Suite 300, Raleigh, North Carolina 27606Boring#:HA-1Sample#:1Hand Auger BoringLocation:Sample Description:Orange Brown Fine Sandy Silty CLAY (CH)1.5" 1.0"3/4" 1/2"3/8"#4#10#20100%90%#40#60#100#200-- .IT80%-70%-t)fl.s60%. 50%"'"'(I'll -Q; 40%30%20%10%.····--0%100O.ot0.1110!Particle Size (mm)CobblesGravelCoarse SandMedium SandMaximum Particle SizeSilt & Clay (% Passing #200)Apparent Relative DensityLiquid Limit 300 mm (12") and 75 mm 3") 75 mm and 4.75 mm (#4) 4.75 mm and 2.00 mm (#10) 2.00 mm and 0.425 mm (#40)3/8"89.6%ND78GravelCoarse SandMoisture ContentPlastic LimitFine SandSiltClayColloids0%0%35.0%34 0.425 mm and 0.075 mm (#200) 0.075 and 0.005 mm 0.005mm 0.001 mmMedium SandFine SandOrganic ContentPlastic IndexND Not determined1%9%ND44Description of Sand & GravelRounded [&]Angular [&]Weathered & FriableHard & Durable Soft ASTM D 422: Particle Size Analysis of SoilsHydrometer portion oftest method not utilized.ASTM D 421: Dry Preparation of Soil SamplesASTM D 85 : Specific Gravity of SoilsASTM D 4318: Liquid Limit, Plastic Limit, & Plastic Index of Soils(ASTM D 2487: Classification of Soils for Engineering Purposes (Unified Soil Classification ystem) \References:Technical Responsibility:S&ME,INC.Mal Krajan3109 Spring Forest Road, Raleigh, NC. 27616HA-1 Classification!RI