BuriedPlasticPipeTechnology:ndVolume2STP1222DaveEckstein,EditorASTMPublicationsCodeNumber(PCN):04-012220-58ASTM1916RaceStreetPhiladelphia,PA19103PrintedintheU.S.A.LibraryofCongressCataloging-in-PublicationDataBuriedplasticpipetechnology:2ndvolume/DaveEckstein,editor.(Specialtechnicalpublication;1222)"Paperspresentedatthesymposium...heldinNewOrleans,LAfrom28Feb.to2March1994"--CIPforeword.Includesbibliographicalreferencesandindex.ISBN0-8031-1992-51.Undergroundplasticpipe--Congresses.II.Eckstein,Dave.1954-II.AmericanSocietyforTestingandMaterials.III.Series:ASTMspecialtechnicalpublication;1222.TJ930-B873199494-10977CIPCopyright�91994AMERICANSOCIETYFORTESTINGANDMATERIALS,Philadelphia,PA.Allrightsreserved.Thismaterialmaynotbereproducedorcopied,inwholeorinpart,inanyprinted,mechanical,electronic,film,orotherdistributionandstoragemedia,withoutthewrittenconsentofthepublisher.PhotocopyRightsAuthorizationtophotocopyitemsforinternalorpersonaluse,ortheinternalorpersonaluseofspecificclients,isgrantedbytheAMERICANSOCIETYFORTESTINGANDMATERIALSforusersregisteredwiththeCopyrightClearanceCenter(CCC)TransactionalReportingService,providedthatthebasefeeof$2.50percopy,plus$0.50perpageispaiddirectlytoCCC,222RosewoodDr.,Danvers,MA01923;Phone:(508)750-8400;Fax:(508)750-4744.ForthoseorganizationsthathavebeengrantedaphotocopylicensebyCCC,aseparatesystemofpaymenthasbeenarranged.ThefeecodeforusersoftheTransactionalReportingServiceis0-8031-1992-5/94$2.50-t-.50.PeerReviewPolicyEachpaperpublishedinthisvolumewasevaluatedbythreepeerreviewers.Theauthorsaddressedallofthereviewers'commentstothesatisfactionofboththetechnicaleditor(s)andtheASTMCommitteeonPublications.Tomaketechnicalinformationavailableasquicklyaspossible,thepeer-reviewedpapersinthispublicationwereprinted"camera-ready"assubmittedbytheauthors.Thequalityofthepapersinthispublicationreflectsnotonlytheobviouseffortsoftheauthorsandthetechnicaleditor(s),butalsotheworkofthesepeerreviewers.TheASTMCommitteeonPublicationsacknowledgeswithappreciati...