Gas Distribution Data Model Changes 2010

Gas Distribution Data Model2010 Modifications

Table of ContentsModel Changes for 2010..........................................................................................................................................3

Overview..............................................................................................................................................................3

Changes to Abstract Classes.................................................................................................................................3

Changes to Existing Featureclasses......................................................................................................................3

Changes to Coded Value Domains........................................................................................................................3

Model Changes for 2009..........................................................................................................................................4

Overview..............................................................................................................................................................4

System-wide Changes...........................................................................................................................................5

Changes to Abstract Classes.................................................................................................................................6

New Featureclasses............................................................................................................................................14

Changes to Existing Tables..................................................................................................................................21

New Tables.........................................................................................................................................................22

New Coded Value Domains................................................................................................................................30

Model Changes for 2010

OverviewIn December of 2009 the U.S. Department of Transportation released the final rule for Distribution Integrity. Several months later the U.S. Environment Protection Agency (U.S. EPA) published the proposed rule, subpart W of the Mandatory Reporting of Greenhouse Gases. Both of these new regulations will have an impact on the information a Gas Utility gathers and stores as part of their compliance efforts. Existing GIS systems will be asked to store, maintain, analyze and visualize this information.

The purpose of this section is to list the changes made to the Gas Distribution Data Model in 2010 to better support these new regulatory requirements.

Changes to Abstract Classes1. GasPipe Abstract Class (includes Services, Mains and GatheringFieldPipe featureclasses)

a. Add column “WarningTape”, Text(5).i. Assigned domain “Yes/No Indicator”.

ii. Purpose: To indicate whether warning tape was installed with the pipe. This has a direct impact on the risk of excavation damage.

b. Add column “TracerWire”, Text(5).i. Assigned domain “Yes/No Indicator”.

ii. Purpose: To indicate whether a tracer wire was installed with the pipe. This has a direct impact on the risk of excavation damage.

c. Add column “Date_Retired”, Datei. Purpose: To define when the pipe was taken out of service. This it to better

accommodate the industry practice of leaving mains in the ground when taken out of service.

Changes to Existing Featureclasses1. GasValve Featureclass

a. Assigned the domain “Yes/No Indicator” to column “Clockwise to Close”.i. Purpose: Improve data integrity by constraining text column to two valid values, “Yes”,

and “No”.

Changes to Coded Value Domains1. Leak Facility Type

a. Added two additional codes to the list.i. Meter

ii. Valve2. Leak Survey Type

a. Added five additional codes to the list.i. Bridge

ii. Cast Iron Patroliii. Pre Paveiv. Public Buildingv. Special

Model Changes for 2009

OverviewSeveral United States Federal Regulatory changes have been implemented since the creation of the Gas Distribution Data Model. These Regulatory changes include the reporting changes to the annual US DOT Report, and new guidelines for Integrity Management of Pipelines.

In December of 2005 the Federal Department of Transportation issued new guidelines for Integrity Management of Gas pipeline systems. The new guidelines changed the very definition of what is a “gas pipeline”. With this new definition many Gas Distribution companies found that gas mains previously classified as distribution was now classified as transmission. This has forced many distribution companies to develop an Integrity Management Plan (IMP) for their distribution system pipes that are operating at a pressure greater than 20% SMYS. This change in regulatory rules has resulted in organizations having to implement Integrity Management practices such as calculating HCA analysis, DOT Class and RISK assessment.

The new Integrity Management practices require new types of information to be managed. The current ArcGIS Gas Distribution Data Model employed by many gas companies to manage information about their distribution systems does not include placeholders for storing and managing the information generated by these Integrity Management practices.

Most HCA Calculation, DOT Calculation and RISK Calculation applications available in the marketplace today are designed for linear referencing based data. The current Gas Distribution data model does not support this functionality and requires updating to support this functionality.

Additionally these regulatory rules put a greater emphasis on the need for generating reports from the information managed by this data model. Changes to the data model are needed to simplify the ability for non-geodatabase literate applications to be able to access and interpret the Gas System data.

The purpose of this section is to list the changes made to the Gas Distribution Data Model to better support these new regulatory requirements.

System-wide Changes

1. Change all featureclasses within the Gas Dataset to have their geometries be “M Enabled” by default. (Default support for linear referencing).

2. Change all featureclasses within the Gas Dataset to have their geometries be “Z enabled” by default. This is to support future planned support for True 3D Geometric Networks.

3. Add data columns on all events and assets to store Station Value(s) and “Mains” or “PipeRoute” pipe name.

4. Consolidate the SubTransmissionMain, TransmissionMain, and DistributionMain featureclasses into one featureclass called “Mains”

a. This is to better support the situation where a mains change in pressure can change its Federal classification as either a pipeline or distribution main.

5. Drop all subtypes on featureclasses that do not have multiple subtype values.

Changes to Abstract Classes

2. ArcFMUserMetadata _Object Class (Parent to non-geometry based tables)a. Rename to “Metadata_Object”

3. ArcFMUserMetadata _Feature Class (Parent to non-Geometric Network point features)a. Rename to “Metadata_Feature”b. Add column “PipeName” Text(38).

i. Purpose: To identify the “Main” which the Object is associated with. This is to support legacy Risk Analysis systems that require linear referencing data.

c. Add column “Station”i. Column Definition: Double

ii. Purpose: To identify the linear referencing location where the Object exists on the specified “PipeName” feature.

4. ArcFMUserMetadata _SimpleJunctionFeature Class (Parent to inline point features)a. Rename to “Metadata_SimpleJunctionFeature”b. Add the attribute “STATUS” to all physical assets

i. Column Definition: Text(20)ii. Domain: Gas Facility Status

iii. Default Value: Proposediv. Purpose: To support a partial posting workflow, where only a portion of the designed

gas system expansion is actually constructed.c. Add column “PipeName” Text(38).


d. Add column “Station”i. Column Definition: Double


5. ArcFMUserMetadata _SimpleEdgeFeature Class (Parent to Simple Edge features)a. Rename to “Metadata_SimpleEdgeFeature”b. Add the attribute “STATUS” to all physical assets



gas system expansion is actually constructed.c. Add column “PipeName” Text(38).


d. Add column “BeginStation”i. Column Definition: Double


e. Add column “EndStation”i. Column Definition: Double


6. ArcFMUserMetadata _Complex EdgeFeature Class (Parent to Complex Edge features)a. Rename to “Metadata_Complex EdgeFeature”b. Add the column “STATUS” to all physical linear assets



gas system expansion is actually constructed.c. Add the column “PipeName” to all physical linear assets

i. Column Definition: Text(38)ii. Purpose: To identify the Route which the pipe segment is associated with. This is to

simplify exporting pipe segments to legacy Risk Analysis systems that require linear referencing data.

d. Add column “BeginStation”i. Column Definition: Double

ii. Purpose: To identify the beginning linear referencing station value of the pipe segment.e. Add column “EndStation”

i. Column Definition: Doubleii. Purpose: To identify the ending linear referencing station value of the pipe segment.

7. GasPipe Abstract Class (includes Services, Mains and GatheringFieldPipe featureclasses)a. Rename the attribute “NominalDiameter” to “Diameter” to provide consistency in the naming of

this attribute across the physical assets.b. Changed the Column Definition from String to Double for easier querying.c. Rename the attribute “NominalDiameterUnits” to “DiameterUnits” to provide consistency in the

naming of this attribute across the physical assets.d. Removed column “GasSystemObjectID”.

i. Purpose: Removed circular relationship classes between Mains, GasPressureSystem, GasSystem.

e. Increase length of attribute “CoatingType” from 5 to 20i. Purpose: Support Code value of Coded Value Domain matching Description.

f. Increase length of attribute “PipeTestType” from 5 to 10i. Purpose: Support Code value of Coded Value Domain matching Description.

g. Increase length of attribute ”PipeType” from 5 to 20i. Purpose: Support Code value of Coded Value Domain matching Description.

h. Increase length of attribute “PlasticType” from 5 to 20i. Purpose: Support Code value of Coded Value Domain matching Description.

i. Increase length of attribute “LengthSource” from 5 to 25i. Purpose: Support Code value of Coded Value Domain matching Description.

j. Change data type of Attribute “WallThickness” from String to Double. Assign domain “PipeWallThickness”

k. Add column “CoverType”i. Column Definition: Text(15)

ii. Domain: Surface Typeiii. Default Value: Grassiv. Purpose: Define the pipe cover material. This is often used in cost estimation.

8. GasFitting Abstract Class (includes ControllableFitting and NonControllableFitting featureclasses) a. Rename the attribute, “FittingDiameter” to “Diameter” to provide consistency in the naming of

this attribute across the physical assets.b. Increase length of attribute “Material” from 5 to 10

i. Purpose: Support Code value of Coded Value Domain matching Description.c. Increase length of attribute “Manufacturer” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Description.

9. GasStation Abstract Class (includes Regulator Station and TownBorder Station featureclasses)a. Drop column “SubtypeCD”. b. Increase length of attribute “OverPressureProtection” from 5 to 35.

i. Purpose: Support Code value of Coded Value Domain matching Description.c. Rename attribute “STATUS” to “OnlineStatus” to avoid naming conflict with newly added

“STATUS” attribute to all assets.d. Increase length of attribute “OnlineStatus” from 5 to 10.

i. Purpose: Support Code value of Coded Value Domain matching Description.

10. CathodicProtectionDevice Abstract Class (includes CPAnode, CPRectifier, CPBondJunction and CPTestPoint featureclasses)

a. Increase length of attribute “OperatingStatus” from 5 to 20.i. Purpose: Support Code value of Coded Value Domain matching Description.

Changes to Existing Featureclasses2. CPBondWire Featureclass

a. Increase length of attribute “OperatingStatus” from 5 to 20i. Purpose: Support Code value of Coded Value Domain matching Description

b. Increase length of attribute “Color” from 5 to 15i. Purpose: Support Code value of Coded Value Domain matching Description

c. Increase length of attribute “Length Source” from 5 to 20i. Purpose: Support Code value of Coded Value Domain matching Description

3. CPBondJunction Featureclassa. Increase length of attribute “BondJunctionType” from 5 to 35

i. Purpose: Support Code value of Coded Value Domain matching Description

4. CPRectifier Featureclassa. Increase length of attribute “RectifierType” from 5 to 25


5. CPRectifierCable Featureclassa. Increase length of attribute “OperatingStatus” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Descriptionb. Increase length of attribute “Length Source” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Descriptionc. Removed Subtype Definition, due to there being only 1 subtype value.

6. CPAnodeFeatureclassa. Increase length of attribute “Material” from 5 to 30

i. Purpose: Support Code value of Coded Value Domain matching Descriptionb. Removed Subtype Definition, due to there being only 1 subtype value.

7. CPTestPoint Featureclassa. Increase length of attribute “TestPointType” from 5 to 20


8. Drip Featureclassa. Rename the attribute “DistributionMainObjectID” to “MainsObjectID” to match rename of the

“DistributionMain” featureclass to “Mains”.

9. ExposedPipeInspecction Featureclassa. Rename the attribute “DistributionMainObjectID” to “MainsObjectID” to match rename of the


10. GasPipeCasing Featureclassa. Increase length of attribute “CoatingType” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Descriptionb. Increase length of attribute “EndConnection” from 5 to 15

i. Purpose: Support Code value of Coded Value Domain matching Descriptionc. Increase length of attribute “FillType” from 5 to 25

i. Purpose: Support Code value of Coded Value Domain matching Descriptiond. Increase length of attribute “ProtectionType” from 5 to 15

i. Purpose: Support Code value of Coded Value Domain matching Descriptione. Increase length of attribute “Reason” from 5 to 10

i. Purpose: Support Code value of Coded Value Domain matching Descriptionf. Increase length of attribute “Length Source” from 5 to 20


11. GasValve FeatureClass a. Rename the attribute “ValveDiameter” to “Diameter”.

i. Purpose: provide consistency in the naming of this attribute across the physical assets. ii. Changed Column Definition from String to Double for greater flexibility in querying (i.e.

find all valves greater then 2” in size).b. Increase length of attribute “ValveType” from 5 to 20.

i. Purpose: Support Code value of Coded Value Domain matching Description.c. Increase length of attribute “OperatingClassification” from 5 to 40.

i. Purpose: Support Code value of Coded Value Domain matching Description.d. Increase length of attribute “Manufacturer” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Description.e. Increase length of attribute “ValveUse” from 5 to 15

i. Purpose: Support Code value of Coded Value Domain matching Description.f. Increase length of “ANSIPressureRating” from 5 to 20

i. Purpose: Support Code value of Coded Value Domain matching Description.g. Increase length of attribute “GroundLevelIndicator” from 5 to 15

i. Purpose: Support Code value of Coded Value Domain matching Description.h. Removed Subtype Definition, due to there being only 1 subtype value.

12. LeakReport Featureclassa. Increase length of attribute “SurfaceType” from 5 to 10b. Increase length of attribute “SoilType” from 5 to 10c. Increase length of attribute “ClosedStatus” from 5 to 10d. Increase length of attribute “LeakSurveyType” from 5 to 15e. Rename attribute “DistributionMainObjectID” to “MainsObjectID”f. Change column data type for CurrentLeakClass from Text(5) to Short Integer.

i. Purpose: Improve ability to report on all Leaks with a value greater then 1.g. Change column data type for OriginalLeakClass from Text(5) to Short Integer.

i. Purpose: Improve ability to report on all Leaks with a value greater then 1.h. Add attribute “DateRepaired”

i. Column Definition: DATEi. Add attribute “Facility”

i. Column Definition: Text (10)ii. Domain: Leak Facility Type

j. Add attribute “LeakCause”i. Column Definition: Text(30)

ii. Domain: LeakCausek. Add attribute “MethodDetected”

i. Column Definition: Text(20)ii. Domain: Method Detected Type

l. Add attribute “Location”i. Column Definition: Text(150)

m. Add attribute “RepairType”i. Column Definition: Text(15)

ii. Domain: Leak Repair Type

13. LeakSurveyArea Featureclassa. Change column data type for LeakSurveyFrequency from Text(5) to Short Integer.

i. Purpose: Improve ability to report on Survey Areas within a range of frequency.

14. Mains Featureclass a. Add the Attribute “MainType” to the “Mains” featureclass.

i. Assign Subtype “MainsType” to this new attribute.ii. Column definition: Text(20)

iii. Default value: Distributionb. Increase length of attribute “CrossingType” from 5 to 15

i. Purpose: Support Code value of Coded Value Domain matching Description.c. Renamed Subype “Plastic” to “Plastic PE”.

i. Purpose: Better alignment with US DOT Reporting requirements.d. Added Subtype “Plastic PVC”.

i. Purpose: Better alignment with US DOT reporting requirements.

15. NonControllableFitting Featureclassa. Increase length of attribute “Style” from 6 to 35

i. Purpose: Support Code value of Coded Value Domain matching Description.b. Add the following Subtypes

i. Weldii. Screw

iii. Electro Stopc. Add attribute “CLEditResponse”

i. Column Definition: Text(15)ii. Domain: PipeEditResponse

iii. Default Value: Absoluted. Column: CLValidityTolerance

i. Column Definition: Doublee. Column: OperationalStatus

i. Column Definition: Text(20)ii. Domain: PipeOperationalStatus

f. Column: EventIDi. Column Definition: Text(38)

g. Column: JoinTypei. Column Definition: Short Integer

ii. Default Domain: PipeWeldType1. Subtype/Domain: Weld/PipeJointWeldType2. Subtype/Domain: Coupling/PipeJointCouplingType3. Subtype/Domain: Flange/PipeJointFlangeType4. Subtype/Domain: Screw/PipeJointScrewType5. Subtype/Domain: Electro Stop/PipeJointEStopType

h. Column: PressureRating1. Column Definition: Text(20)2. Domain: PipePressureRating

i. Column: Remarksi. Column Definition: Text(255)

16. Odorizer Featureclassa. Increase length of attribute “Manufacturer” from 5 to 20


17. PipeExposure Featureclassa. Rename the attribute “DistributionMainObjectID” to “MainsObjectID” to match rename of the


18. PressureMonitoringDevice Featureclassa. Increase length of attribute “Manufacturer” from 5 to 20


19. ReliefValvea. Rename the attribute “ValveDiameter” to “Diameter”.

i. Purpose: provide consistency in the naming of this attribute across the physical assets. ii. Changed Column Definition from String to Double for greater flexibility in querying (i.e.

find all valves greater then 2” in size).

20. Vault Featureclassa. Increase length of attribute “Material from 5 to 20


21. RuralTap Featureclassa. Add the Attribute “WorkOrderID”

i. Column Definition: text(20)ii. Purpose: To tag all features added/modified as part of a design project. This is

important when generating a design’s Material List or Cost Estimateb. Increase length of attribute “PipelineOperator” from 10 to 45

iii. Purpose: Support Code value of Coded Value Domain matching Description.c. Increase length of attribute “SutoffValveType” from 5 to 25

iv. Purpose: Support Code value of Coded Value Domain matching Description

22. Service Featureclassa. Increase length of attribute “Material” from 5 to 20

v. Purpose: Support Code value of Coded Value Domain matching Description.

23. MeterSetting Featureclassb. Add the Attribute “WorkOrderID”

vi. Column Definition: text(20)vii. Purpose: To tag all features added/modified as part of a design project. This is

important when generating a design’s Material List or Cost Estimatec. Removed Subtype Definition, due to there being only 1 subtype value.

New Featureclasses

1. Anomaly a. Inherits from “Metadata_PointFeature” Abstract Classb. Geometry Type: Pointc. Featureclass Schema

i. Column: SubtypeCD1. Column Definition: Long Integer

a. SubtypeCD: 1 = External Corrosionb. SubtypeCD: 2 = Internal Corrosionc. SubtypeCD: 3 = Dentd. SubtypeCD: 4 = Gouge

ii. Column: CLEditResponse1. Column Definition: Text(15)2. Domain: PipeEditResponse3. Default Value: Relative

iii. Column: CLValidityTolerance1. Column Definition: Double

iv. Column: Status1. Column Definition: Text(15)2. Domain: Gas Object Status

v. Column: SymbolRotation1. Column Definition: Double

vi. Column: BPRCalculated1. Column Definition: Double

vii. Column: BPRPig1. Column Definition: Double

viii. Column: BPRVariance1. Column Definition: Double

ix. Column: Depth1. Column Definition: Double

x. Column: Length1. Column Definition: Double

xi. Column: Width1. Column Definition: Double

xii. Column: MaximumDiameter1. Column Definition: Double

xiii. Column: MinimumDiameter1. Column Definition: Double

xiv. Column: Orientation1. Column Definition: Text(5)

xv. Column: Ovality1. Column Definition: Double

xvi. Column: RecommendedRemidiation1. Column Definition: Text( )2. Domain: InspRemediation

xvii. Column:RPRCalculated1. Column Definition: Double

xviii. Column: RPRPig1. Column Definition: Double

xix. Column: RPRVariance1. Column Definition: Double

2. DOTClassa. Inherits from “Metadata_LineFeature” Abstract Classb. Geometry Type: Linec. Featureclass Schema

i. Column: ClassType1. Column Definition: Integer2. Domain: DOTClassType

ii. Column: ClassSource1. Column Definition: Text(20)2. Domain: DOTClassSource

iii. Column: ClassLength1. Column Definition: Double(15,2)

iv. Column: CorridorWidth1. Column Definition: Double(9,2)

v. Column: DateCalculated1. Column Definition: Date

3. DocumentPointa. Inherits from “Metadata_PointFeature” Abstract Classb. Geometry Type: Pointc. Featureclass Schema

vi. Column: DocumentType1. Column Definition: Text(30)2. Domain: DocumentType

vii. Column: DocumentDesc1. Column Definition: Text(255)

viii. Column: FilePath1. Column Definition: Text(150)

ix. Column: FileName1. Column Definition: Text(50)

x. Column: Hyperlink1. Column Definition: Text(255)

4. ElevationPointa. Inherits from “Metadata_PointFeature” Abstract Classb. Geometry Type: Pointc. Featureclass Schema

xi. Column: FeatureElevation1. Column Definition: Double(15,2)

xii. Column: GroundElevation1. Column Definition: Double(15,2)

xiii. Column: WaterElevation1. Column Definition: Double(15,2)

xiv. Column: MeasurementDate1. Column Definition: Date

5. ExcessFlowValve

a. Inherits from “GasDevice” Abstract Classb. Geometry Type: Simple Junction (Point)c. Featureclass Schema

xv. Column: Diameter1. Column Definition: Double(6,2)2. Domain: GasValveDiameter

xvi. Column: ExcessPressureRating1. Column Definition: Double(6,2)

xvii. Column: Depth1. Column Definition: Double(9,2)

xviii. Column: LocationDescription1. Column Definition: Text(50)

xix. Column: Manufacturer1. Column Definition: Text(20)

xx. Column: Model1. Column Definition: Text(20)

6. PigStructure a. Inherits from “Metadata_PointFeature” Abstract Classb. Geometry Type: Linec. Featureclass Schema

xxi. Column: SubtypeCD1. Subtypes: 1 = Launcher2. Subtypes: 2 = Receiver

xxii. Column: Remarks1. Column Definition: Text(255)

xxiii. Column: InstallationDate1. Column Definition: Date

xxiv. Column: inServiceDate1. Column Definition: Date

xxv. Column: OperationalStatus1. Column: Text(20)2. Domain: PipeOperationalStatus

xxvi. Column: SiteEventID1. Column Definition: Text(38)

xxvii. Column: BarrelDiameter1. Column Definition: Short Integer2. Domain: PipeDiameter

xxviii. Column: BarrelGrade1. Column Definition: Text(15)2. Domain: PipeGrade

xxix. Column: BarrelWallThickness1. Column Definition: Double2. Domain: PipeWallThickness

xxx. Column: Manufacturer1. Column Definition: Text(35)2. Domain: PipeManufacturer

xxxi. Column: Material1. Column Definition: Text(10)2. Domain: PipeMaterial

xxxii. Column: MillLocation1. Column Definition: Text(25)2. Domain: PipeMillLocation

xxxiii. Column: StructureLength1. Column Definition: Double

xxxiv. Column: PressureRating1. Column Definition: Text(20)2. Domain: PipePressureRating

7. HCASegment a. Inherits from “Metadata_LineFeature” Abstract Classb. Geometry Type: Linec. Featureclass Schema

i. Column: Remarks2. Column Definition: text(255)

ii. Column: CLEditResponse1. Column Definition: Text(15)2. Domain: PipeEditResponse3. Default Value: Relative

iii. Column: CLValidityTolerance1. Column Definition: Double

iv. Column: EventID1. Column Definition: Text(38)

v. Column: Status1. Column Definition: Text(15)2. Domain: Gas Object Status

vi. Column: BIHOStructureCount1. Column Definition: Long Integer

vii. Column: CalculatedLength1. Column Definition: Double

viii. Column: DateCalculated1. Column Definition: Date

ix. Column: MAOP1. Column Definition: Double

x. Column: OutsideDiameter1. Column Definition: Short Integer2. Domain: PipeDiameter

xi. Column: PIR1. Column Definition: Double

xii. Column: PIRT1. Column Definition: Double

xiii. Column: Provenance1. Column Definition: Text(40)2. Domain: HCAProvenance

8. HighConsequenceArea a. Inherits from “Metadata_PolygonFeature” Abstract Classb. Geometry Type: Polygonc. Featureclass Schema

i. Column: Status

1. Column Definition: Text(15)2. Domain: Gas Object Status

ii. AreaType1. Column Definition: Text(25)2. Domain: HCAEncroachmentType

iii. ClassArea1. Column Definition: Text(10)2. Domain: HCAClass

iv. Remarks1. Column Definition: Text(255)

9. LineCrossing a. Inherits from “Metadata_LineFeature” Abstract Classb. Geometry Type: Linec. Featureclass Schema

i. Column: SubtypeCD1. SubtypeCD: 1 = Geographical2. SubtypeCD: 2 = Utility3. SubtypeCD: 3 = Transportation

ii. Column: Status1. Column Definition: Text(15)2. Domain: Gas Object Status

iii. Column: Clearance1. Column Definition: Double

iv. Column: CrossingType1. Column Definition: Text( )2. Domain:LCGeography

v. Column: EasementWidth1. Column Definition: Double

vi. Column: Name1. Column Definition: Text(90)

vii. Column: Remarks1. Column Definition: Text(255)

10. StationSeriesa. Inherits from “Metadata_LineFeature” Abstract Class.b. Purpose: Provide support for more complicated pipe routes.

11. ThirdPartyDamage a. Inherits from “Metadata_PointFeature” Abstract Classb. Geometry Type: Linec. Featureclass Schema:

i. Column: DateDamaged:i. Column Definiton: DATE

ii. Column: ResponsbilePartyNamei. Column Definition: Text(50)

iii. Column: EquipCausingDamagei. Column Definition: Text(20)

ii. Domain: EquipCausedDamageiv. Column: DamageType

i. Column Definition: Text(20)ii. Domain: DamageType

v. Column: LocationDescriptioni. Column Definition: Text(255)

vi. Column: Statusi. Column Definition: Text(15)

ii. Domain: Gas Object Statusvii. Column: Remarks

i. Column Definition: Text(255)viii. Column: LeakReportObjectID

i. Column Definition: Long Integer

12. InspectionRange a. Inherits from “Metadata_Feature” Abstract Classb. Geometry Type: Linec. Featureclass Schema

i. Column: SubtypeCD1. SubtypeCD: 1 = Smart Pig Run2. SubtypeCD: 2 = CleaningPig Run3. SubtypeCD: 3 = Geometry Pig Run4. SubtypeCD: 4 = Leak Survey5. SubtypeCD: 5 = Close Interval Survey6. SubtypeCD: 6 = Visual Survey7. SubtypeCD: 7 = Aerial Survey8. SubtypeCD: 8 = Excavation

ii. Column: InspectionDate1. Column Definition: Date

iii. Column: Status1. Column Definition: Text(15)2. Domain: Gas Object Status

iv. Column: CLEditResponse1. Column Definition: Text(15)2. Domain: PipeEditResponse3. Default Value: Relative

v. Column: CLValidityTolerance1. Column Definition: Double

vi. Column: Remarks1. Column Definition: Text(255)

13. AlignmentSheet a. Inherits from “Metadata_Feature” Abstract Classb. Geometry Type: Polygonc. Featureclass Schema

i. Column: SheetName1. Column Definition: Text(45)

ii. Column: SheetNumber1. Column Definition: Text(45)

iii. Column: SheetType1. Column Definition: Text()2. Domain: AlignmentSheetType

iv. Column: Status1. Column Definition: Text(15)2. Domain: Gas Object Status

Changes to Existing Tables

1. CrossingInspection Tablea. Rename the attribute “DistributionMainObjectID” to “MainsObjectID” to match rename of the


2. CPSystem Tablea. Increase length of attribute “ProtectionType” from 5 to 10b. Purpose: Support Code value of Coded Value Domain matching Description.

3. ElectricSurvey Tablea. Rename the attribute “DistributionMainObjectID” to “MainsObjectID” to match rename of the


4. GasMeter Tablea. Increase length of attribute “MeterType” from 5 to 15b. Purpose: Support Code value of Coded Value Domain matching Description.

5. LeakRepair Tablea. Remove Table “LeakRepair”

i. Purpose: Consolidated into LeakReport featureclass to simplify reporting.

6. PipeExposure Tablea. Increase length of attribute “CorrosionCode” from 5 to 10

i. Purpose: Support Code value of Coded Value Domain matching Description.b. Increase length of attribute “CorrosionExtent” from 5 to 10

ii. Purpose: Support Code value of Coded Value Domain matching Description.

7. Regulator Tablea. Increase length of attribute “Manufacturer” from 5 to 25b. Purpose: Support Code value of Coded Value Domain matching Description.

New Tables1. LeakInspections Table

a. Inherits from Abstract Class: Metadata_Objectb. Purpose: To manage inspection data on DOT Class 2 & 3 Leaks.c. Table Schema:

i. InspectionDate:1. Column Definiton: DATE

ii. InspectionMethod1. Column Definition: Text(20)

iii. PercentGas1. Column Definition:Double

iv. Remarks1. Column Definition: Text(255)

v. LeakReportObjectID1. Column Definition: Integer

New Relationship Classes1. LeakReport_LeakInspection

a. Type: Compositeb. Origin: LeakReport

i. Origin column: ObjectIDc. Destination: LeakInspection

i. Destination column: LeakReportObjectID

2. LeakReport_ThirdPartyDamagea. Type: Simpleb. Origin: LeakReport

i. Origin column: ObjectIDc. Destination: ThirdPartyDamage

i. Destination column: LeakReportObjectID

Changed Coded Value Domains

3. Anode Material Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

4. CP Bond Junction Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

5. CP Color Codea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

6. CP System Protection Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

7. Coating Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

8. Corrosion Codea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

9. Corrosion Extenta. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

10. Gas Fitting Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

11. Gas Fitting Materiala. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

12. Gas Fitting Stylea. Change CODE value to match DESCRIPTION value.

b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other Management systems

13. Gas Pipe – Service Materiala. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

14. Gas Pipe Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

15. Gas Pipe Plastic Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

16. Gas Regulator Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

17. Gas Valve Use Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

18. Gas Valve Materiala. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

19. Gas Valve Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

20. Gas Valve Ratinga. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

21. Gas Valve Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

22. Gas Valve Use Typea. Change CODE value to match DESCRIPTION value.

b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other Management systems

23. Ground Level Indicatora. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

24. Leak Classa. Change field type from Text(5) to Short Integer.

25. Leak Causea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

26. Leak Closed Statusa. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

27. Leak Survey Frequencya. Change field type from Text(5) to Short Integer.

28. Leak Survey Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

29. Length Sourcea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

30. Meter Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

31. Odorizer Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

32. Operating Classificationa. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

33. Operating Status

a. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

34. Operating Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

35. Over Pressure Protection Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

36. Pipe Casing End Protectiona. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

37. Pipe Casing Fill Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

38. Pipe Casing Protection Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

39. Pipe Casing Reasona. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

40. Pipe Crossing Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

41. Pipe Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

42. PipeTestTypea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

43. Pipeline Operatora. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

44. Pressure Monitor Device Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

45. Rectifier Manufacturera. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

46. Rectifier Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

47. Soil Typea. Change CODE value to match DESCRIPTION value.b. Added the following additional Soil Types

i. Gravelii. Loam

iii. Cindersc. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

48. Station Statusa. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

49. SurfaceTypea. Add CODE: “Asphalt”b. Change CODE value to match DESCRIPTION value.c. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

50. Test Point Typea. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

51. Vault Materiala. Change CODE value to match DESCRIPTION value.b. Purpose: To improve ease of use with 3rd Party reporting tools and integration with other

Management systems

New Coded Value Domains1. AlignmentSheetType

a. Coded Value list:

Code Description

Class Location Class Location

Construction Construction

Detail Sheet Detail Sheet

Engineering Engineering

Integrity Integrity

New Construction New Construction

2. DamageType


Code Description

Unknown Unknown

3. DOTClassType

a. Coded Value list

Code Description

1 Class 1

2 Class 2

3 Class 3

4 Class 4

4. DOTClassSource

a. Coded Value list

Code Description

Unknown(Verified) Unknown(Verified)

Unknown Unknown

Calculated Calculated

Manual Manual

5. EquipCausedDamage

b. Coded Value list:

Code Description

Unknown Unknown

6. Gas Facility Status


Code Description

Proposed Proposed

Proposed Retired Proposed Retired

Retired Retired

As-Built As-Built

b. Purpose: To support a partial posting process, where only a portion of the designed gas system expansion is actually constructed.

7. Gas Object Status


Code Description

Unknown Unknown

Conceptual Conceptual

Proposed Proposed

Active Active

Inactive Inactive

8. HCAClass


Code Description

Unknown Unknown

1 1

1E 1E

1P 1P

2 2

2P 2P

3 3

3P 3P

3H 3H

3B 3B

4 4

9. HCAEncroachmentType


Code Description

Unknown Unknown

Assisted Living Facility Assisted Living Facility

Beach Beach

Campground Active

Cemetery Cemetery

CLASS 3 Class 3

Daycare Facility Daycare Facility

Hospital Hospital

Outdoor Theatre Outdoor Theatre

Playground Playground

Prison Prison

Recreational Area Recreational Area

Recreational Facility Recreational Facility

Religious Facility Religious Facility

Retirement Facility Retirement Facility

School School

Stadium Stadium

10. HCAProvenance


Code Description

Unknown Unknown

Class 3 or 4 Designation Class 3 or 4 Designation

Identified Site Identified Site

Sliding Circle Sliding Circle

Sliding Circle & Class Designation Sliding Circle & Class Designation

Sliding Circle & Identified Site Sliding Circle & Identified Site

Engineering Assessment Engineering Assessment

11. InspRemediation


Code Description

Unknown Unknown

Composite Sleeve Composite Sleeve

Coupling Reinforcement Sleeve Coupling Reinforcement Sleeve

Full Encirclement Welded Split Sleeve Full Encirclement Welded Split Sleeve

Pipe Cutout Pipe Cutout

Saddle Reinforcement Sleeve Saddle Reinforcement Sleeve

Weld Reinforcement Sleeve Weld Reinforcement Sleeve

12. InstrUnknownModel

c. Coded Value list:

Code Description

Unknown Unknown

13. InstrCorrosionCouponModel

d. Coded Value list:

Code Description

Unknown Unknown

14. InstrERProbeModel

e. Coded Value list:

Code Description

Unknown Unknown

15. InstrFlowComputerModel

f. Coded Value list:

Code Description

Unknown Unknown

FX0550 FX0550

16. InstrFlowControlValveModel

g. Coded Value list:

Code Description

Unknown Unknown

17. InstrGasChromatographModel


Code Description

Unknown Unknown

18. InstrGasSamplerModel


Code Description

Unknown Unknown

19. InstrLevelControllerModel


Code Description

Unknown Unknown

2503-249 BP 2503-249 BP

2606 2606

Leveltrol Leveltrol

20. InstrLevelIndicatorModel


Code Description

Unknown Unknown

2088 Smart 2088 Smart

2500 2606

DPR 900 DPR 900

Reflex Reflex

21. InstrLiquidSamplerModel


Code Description

Unknown Unknown

22. InstrPressureControllerModel


Code Description

Unknown Unknown

4160K 4160K

23. InstrPressureGuageModel


Code Description

Unknown Unknown

24. InstrPressureRecorderModel


Code Description

Unknown Unknown

25. InstrPressureSwitchModel


Code Description

Unknown Unknown

26. InstrPressureTransducerModel


Code Description

Unknown Unknown

27. InstrPressureTransmitterModel


Code Description

Unknown Unknown

DPR900 DPR900

G4A22A1E5 G4A22A1E5

28. InstrSolarPanelModel


Code Description

Unknown Unknown

29. InstrTemperatureSwitchModel


Code Description

Unknown Unknown

30. InstrValvePositionerModel


Code Description

Unknown Unknown

3570 3570

3582 3582

31. InstrValvePositionIndicatorModel

f. Coded Value list:

Code Description

Unknown Unknown

4020R-BY-A20 4020R-BY-A20

32. InstrumentManufacturer

g. Coded Value list:

Code Description

Unknown Unknown

ASCO TriPoint ASCO TriPoint

BPI BPI

Fisher Fisher

Flow Automation Flow Automation

Masoneilan Masoneilan

Penberthy Penberthy

Rosemount Rosemount

Solarex Solarex

Westlock Controls Westlock Controls

33. LCGeography

h. Coded Value list:

Code Description

Unknown Unknown

Bayou Bayou

Canal Canal

Creek Creek

Ditch Ditch

Drain Drain

Drain Tile Drain Tile

Fence Fence

Lake Lake

Levee Levee

River River

Sidewalk Sidewalk

Waterline Waterline

34. LCTransportation


Code Description

Unknown Unknown

Asphalt Road Asphalt Road

Culvert Culvert

Driveway Driveway

Gravel Road Gravel Road

Highway Highway

Interstate Highway Interstate Highway

Landing Strip Landing Strip

Railroad Railroad

Road Road

Sidewalk Sidewalk

35. LCUtility


Code Description

Unknown Unknown

Company Owned Pipeline Company Owned Pipeline

Foreign Pipeline Foreign Pipeline

Overhead Cable Overhead Cable

Sewer Line Sewer Line

Storm Sewer Storm Sewer

Telephone Line Telephone Line

Waterline Waterline

Underground Cable (Conduit) Underground Cable (Conduit)

36. PipeEditResponse


Code Description

Relative Relative

Proportional Proportional

Absolute Absolute

37. PipeDiameter


Code Description

4 4”

6 6”

8 8”

10 10”

12 12”

14 14”

16 16”

18 18”

20 20”

22 22”

24 24”

30 30”

36 36”

38. PipeGrade


Code Description

Unknown Unknown

SMYS Grade A SMYS Grade A

SMYS Grade B SMYS Grade B

SMYS 24 ksi SMYS 24 ksi



















39. PipeFittingManufacturer


Code Description

Unknown Unknown

ACME-Newport Steel Co ACME-Newport Steel Co

American Steel Pipe American Steel Pipe

Bethlehem Steel Co Bethlehem Steel Co

Ipsco Steel (Canada) Ipsco Steel (Canada)

Mueller Mueller

Newport Steel Newport Steel

Pittsburgh Steel Co Pittsburgh Steel Co

Stelco Stelco

Taylor forge Pipe Works Taylor forge Pipe Works

US Steel US Steel

40. PipeJointCouplingType


Code Description

Unknown Unknown

Dresser Coupling Dresser Coupling

Style 39 Style 39

Style 40 Style 40

41. PipeJointFlangeType


Code Description

Unknown Unknown

Raised Face Raised Face

Flat Face Flat Face

Lap Lap

Ring Joint Ring Joint

Slip Slip

42. PipeJointScrewType


Code Description

Unknown Unknown

Screw Screw

Thread Thread

43. PipeJointEStopType


Code Description

Unknown Unknown

Electro Stop Electro Stop

44. PipeJointWeldType


Code Description

Unknown Unknown

Acetylene Weld Acetylene Weld

Automatic Electric Weld Automatic Electric Weld

Butt Weld Butt Weld

Dresser Coupled – Acetylene Weld Dresser Coupled – Acetylene Weld

Fillet Weld Fillet Weld

Manual Arc Weld Manual Arc Weld

Manual Electric Weld Manual Electric Weld

Pressure Weld Pressure Weld

SEW w/Dresser Coupled Joint SEW w/Dresser Coupled Joint

Solid Electric Weld Solid Electric Weld

Threaded Mechanical Coupling Threaded Mechanical Coupling

45. PipeManufacturer


Code Description

Unknown Unknown

ACME-Newport Steel ACME-Newport Steel

American Steel Pipe (ACIPCO) American Steel Pipe (ACIPCO)

Bethlehem Steel Bethlehem Steel

Ipsco Ipsco

Kawasaki Steel Kawasaki Steel

Newport Steel Newport Steel

Nippon Nippon

Stelco Stelco

Stupp Stupp

U.S. Steel U.S. Steel

46. PipeMaterial


Code Description

Unknown Unknown

Concrete Concrete

PVC PVC

Steel Steel

47. PipeMillLocation


Code Description

Unknown Unknown

Baton Rouge, LA Baton Rouge, LA

Birmingham, AL Birmingham, AL

Chiba, Japan Chiba, Japan

Cleveland, OH Cleveland, OH

Hagen/Westfalen, GER Hagen/Westfalen, GER

Milwaukee, WI Milwaukee, WI

Napa, CA Napa, CA

Orange, TX Orange, TX

Provo, UT Provo, UT

Steelton, PA Steelton, PA

Taranto, Italy Taranto, Italy

Youngstown, OH Youngstown, OH

48. PipePressureRating


Code Description

Unknown Unknown

API WOG 150 PSI API WOG 150 PSI






















49. PipeWallThickness


Code Description

-1 Unknown (verified)

0 Unknown

1 0.125

2 0.2

3 0.3

4 0.4

5 0.5

6 0.6

7 0.7

8 0.75

9 0.8

10 0.9

11 1.0

12 1.1

13 1.2

14 1.25

50. MainsType

a. Coded Value list

Code Description

Distribution Distribution

Transmission Transmission

SubTransmission SubTransmission

51. Leak Facility Type

a. Coded Value list

Code Description

Main Main

Service Service

Cust Pipe Cust Pipe

52. Method Detected Type

a. Coded Value list

Code Description

Leak Survey Leak Survey

Air Patrol Air Patrol

Customer Reported Customer Reported

Unknown Unknown

53. Leak Repair Type

a. Coded Value list

Code Description

Permanent Permanent

Temporary Temporary

Not Applicable Not Applicable

Unknown Unknown

Documents

Gas Distribution Data Model Changes 2010