Designation:D6523−00(Reapproved2014)´1StandardGuideforEvaluationandSelectionofAlternativeDailyCovers(ADCs)forSanitaryLandfills1ThisstandardisissuedunderthefixeddesignationD6523;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsstatementwasinsertedinSection1.4editoriallyinJanuary2014.1.Scope1.1Thisguideisintendedtoassistspecifiersandendusersinassessingthedifferentoptionsavailableforsanitarylandfilldailycovermaterialsdescribedasalternative(non-soil)dailycovers(ADCs).Traditionaldailycoverconsistsofatleast6in.(15cm)ofsoilspreadovertheworkingfacesofsanitarylandfills.Alternativesystemsareattractivetolandfillopera-tionsinordertoconservelandfilldisposalspace,amongotherreasons.1.2Thisguideassistsinunderstandingdifferentperfor-mancefeaturesofbroadclassificationsofADCs,anddeter-miningtheextentanddegreetowhichdifferentADCsareableto“controldiseasevectors,fires,odors,blowinglitter,andscavenging,withoutpresentingathreattohumanhealthandtheenvironment,”asintendedbyUnitedStatesEnvironmentalProtectionAgency(USEPA)regulations.1.3ThisguideisnotintendedtoprovidecostinformationregardingthevariousADCsasastandardguide,itdoesnotdictateaprotocolforthepracticeandtestingofADCs,butratherprovidesvaluableinformation,guidance,andrecom-mendationstointerestedpartiesconcerningthemanyoptionsavailable.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4.1Exception—Metricunitsareusedin6.2.9.2.2.ReferencedDocuments2.1ASTMStandards:2D4982TestMethodsforFlammabilityPotentialScreeningAnalysisofWasteE96/E96MTestMethodsforWaterVaporTransmissionofMaterials2.2OtherStandards3SolidWasteDisposalFacilityCriteria,USEPA,TechnicalManualEPA530-R-93-017,CoverMateri...
