Designation:D5674−22StandardGuideforOperationofaGagingStation1ThisstandardisissuedunderthefixeddesignationD5674;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Theguidecoversproceduresusedcommonlyforthesystematiccollectionofstreamflowinformation.Continuousstreamflowinformationisnecessaryforunderstandingtheamountandvariabilityofwaterformanyuses,includingwatersupply,wastedilution,irrigation,hydropower,andreservoirdesign.1.2Theproceduresdescribedinthisguideareusedwidelybythoseresponsibleforthecollectionofstreamflowdata,forexample,theU.S.GeologicalSurvey,BureauofReclamation,U.S.ArmyCorpsofEngineers,U.S.DepartmentofAgriculture,WaterSurveyCanada,andmanystateandpro-vincialagencies.Theproceduresaregenerallyfrominternaldocumentsoftheprecedingagencies,whichhavebecomethedefactostandardsusedinNorthAmerica.1.3Itistheresponsibilityoftheuseroftheguidetodeterminetheacceptabilityofaspecificdeviceorproceduretomeetoperationalrequirements.Compatibilitybetweensensors,recorders,retrievalequipment,andoperationalsystemsisnecessary,anddatarequirementsandenvironmentaloperatingconditionsmustbeconsideredinequipmentselection.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbyt...
