Designation:E2020−99a(Reapproved2010)StandardGuideforDataandInformationOptionsforConductinganEcologicalRiskAssessmentatContaminatedSites1ThisstandardisissuedunderthefixeddesignationE2020;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguideisintendedtoassistremedialprojectteams,specificallyecologicalriskassessors,inidentifyingdataandinformationoptionsthatmaybeusedtoperformascreeningorcomplexecologicalriskassessment(ERA)atacontaminatedsite.1.2Theidentificationofdataandinformationoptionsforhumanhealthriskassessmentisoutsidethescopeofthisguide.1.3ThisguideisintendedtoprovidealistforidentifyingdataandinformationoptionsanddoesnotrecommendaspecificcourseofactionforERAactivities.1.4Thisguideaddressesdataandinformationoptionsfortheecologicalriskassessment,notverificationorlong-termmonitoringstudies.1.5Thisguidelistsmanyofthecommondataandinforma-tionoptionsforERA,buttheremaybeothersrelevantforanyparticularsite.1.6ThisguideconsidersonecomponentofanERA,thatis,identificationofdataandinformationoptions.OtherASTMguideshavebeendeveloped,forexample,GuidesE1689andE1848,andarebeingdevelopedtocoverothercomponentsoftheriskassessmentprocess.1.7Thisguidedoesnotprovideinformationonhowtoperformanyoftheanalyticalproceduresusedtoperformariskassessmentoncedatacollectionoptionsaredefined.2.ReferencedDocuments2.1ASTMStandards:2D5730GuideforSiteCharacterizationforEnvironmentalPurposesWithEmphasisonSoil,Rock,theVadoseZoneandGroundwater(Withdrawn2013)3E1391GuideforCollection,Storage,Characterization,andManipulationofSedimentsforToxicologicalTestingandforSelectionofSamplersUsedtoCollectBenthicInver-tebratesE1525GuideforDesigningBiologicalTestswithSedimentsE1689GuideforDevelopingConceptualSiteModelsforContaminatedSitesE1848GuideforSelectingandUsingEcologicalEndpointsforContami...