Designation:D7780−20StandardPracticeforMinimumGeospatialDataforRepresentingCoalMiningFeatures1ThisstandardisissuedunderthefixeddesignationD7780;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedefinesasetofterms,procedures,anddatarequiredtodefinetheaccuratelocationanddescriptionoftheminimumgeospatialdataforsurfacecoalminingoperations(CMO),undergroundcoalminingextents,landreclamationandperformancebondstatuses,landsunsuitableforminingpetitions(LUMP)anddesignatedareas,coalspoilandrefusefeatures,coalpreparationplants,environmentalresourcemoni-toringlocations(ERMLs),andpostmininglanduses.1.2Units—Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorlimitationspriortouse.1.3.1Thispracticeoffersasetofinstructionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacetheadequacyofaprofessionalservice,norshouldthisdocumentbeappliedwithoutconsid-erationofaproject’smanyuniqueaspects.Theword“Stan-dard”inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1.4SurfaceCMOs—Asusedinthispractice,asurfaceCMOrepresentsanareawherecoalremoval,reclamation,andrelatedsupportingactivitieshaveoccurred,isoccurring,ispendingauthorizationorisauthorizedbytheRegulatoryAuthority(RA)withinadefinedsurfaceCMOoranyotherunpermittedareathathasbeenidentifiedbytheRA.1.4.1...
