Designation:C913−16StandardSpecificationforPrecastConcreteWaterandWastewaterStructures1ThisstandardisissuedunderthefixeddesignationC913;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoverstherecommendeddesignre-quirementsandmanufacturingpracticesformonolithicorsectionalprecastconcretewaterandwastewaterstructureswiththeexceptionofconcretepipe,boxculverts,utilitystructures,septictanks,greaseinterceptortanks,anditemsincludedunderthescopeofSpecificationC478.NOTE1—Waterandwastewaterstructuresaredefinedassolarheatingreservoirs,cisterns,holdingtanks,leachingtanks,extendedaerationtanks,wetwells,pumpingstations,distributionboxes,oil-waterseparators,treatmentplants,manurepits,catchbasins,dropinlets,andsimilarstructures.NOTE2—Installationandsealantrequirementsshouldreceivespecialconsiderationduetospecialfeaturesoftheapplication.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2A184/A184MSpecificationforWeldedDeformedSteelBarMatsforConcreteReinforcementA416/A416MSpecificationforLow-Relaxation,Seven-WireSteelStrandforPrestressedConcreteA421/A421MSpecificationforStress-RelievedSteelWireforPrestressedConcreteA615/A615MSpecificationforDeformedandPlainCarbon-SteelBarsforConcreteReinforcementA706/A706MSpecificationforDeformedandPlainLow-AlloySteelBarsforConcreteReinforcementA1064SpecificationforCarbon-SteelWireandWeldedWireReinforcement,PlainandDeformed,forConcreteC33SpecificationforConcreteAggregatesC39/C39MTestMethodforCompressiveStrengthofCylin-dricalConcreteSpecimensC94/C94MSpecificationforReady-MixedConcreteC125TerminologyRelatingtoConcreteandConcreteAg-gregatesC150Spe...