Layers:

Layer: Inadequate Outfalls (2)


Name: Inadequate Outfalls

Display Field: INADEQUATE_OUTFALL_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description:

This dataset is a selection of known erosion and flooding problems throughout the County. The data is intended primarily to assist site plan preparers with establishing the existence of known erosion and flooding problems.

Increased volumes of sheet flow that will cause or contribute to erosion, sedimentation, or flooding of down gradient properties or resources shall be diverted to a stormwater management facility or a stormwater conveyance system that conveys the runoff without causing down-gradient erosion, sedimentation, or flooding per Stormwater Management Ordinance 124-4-4.E. Minimum Standard (MS) 19 of the Virginia Erosion and Sediment Control Regulations (9VAC25-840-40.19) requires stormwater discharge from permitted projects be diverted to an adequate conveyance or detention facility.

This data documents known inadequacies in the stormwater conveyance system. Plan preparers should and County staff will use this information when evaluating compliance with requirements to discharge storm water to an adequate system or detention facility.

The erosion and flooding problems identified in the layer were determined using the following county datasets:

• -Stream Physical Assessment 1.0 Erosion

• -Stream Physical Assessment 1.0 Reach Habitat

• -Stream Physical Assessment 1.0 Head Cuts

• -Stream Physical Assessment 2.0

• -Open Channel Inspections

Contact: Land Development Services

Data Accessibility: Publicly Available

Update Frequency: As Needed

Last Revision Date: 9/212021

Creation Date: 9/21/2021

Layer Name: LDSAMGR.INADEQUATE_OUTFALLS



Copyright Text: Fairfax County, Virginia; Land Development Services

Min. Scale: 350000

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 11741487.7251313
YMin: 6926718.10701789
XMax: 11898471.7251391
YMax: 7066946.10707314
Spatial Reference: 102746 (2283)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: true

Has Geometry Properties: true

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Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field: GlobalID

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• INADEQUATE_OUTFALL_ID (type: esriFieldTypeString, alias: Inadequate Outfall ID:, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true)
• STORMNET_ID (type: esriFieldTypeString, alias: StormNet ID:, SQL Type: sqlTypeOther, length: 14, nullable: true, editable: true)
• SPA_ID (type: esriFieldTypeString, alias: Stream Physical Assessment ID:, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
• REACHID (type: esriFieldTypeString, alias: Reach ID: , SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• DATA_SOURCE (type: esriFieldTypeString, alias: Data Source:, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true, Coded Values: [Open Channel Inspections: Open Channel Inspections], [Stream Physical Assessment 1.0 Reach Habitat: Stream Physical Assessment 1.0 Reach Habitat], [Stream Physical Assessment 1.0 Erosion: Stream Physical Assessment 1.0 Erosion], ... 4 more ...)
• DRAINAGE_AREA (type: esriFieldTypeDouble, alias: Drainage Area:, SQL Type: sqlTypeOther, nullable: true, editable: true)
• DETERMINATION (type: esriFieldTypeString, alias: Determination:, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true, Coded Values: [Erosion: Erosion], [Vertical Erosion: Vertical Erosion], [Flooding: Flooding], ... 3 more ...)
• WATERSHED (type: esriFieldTypeString, alias: Watershed:, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true, Coded Values: [Accotink Creek: Accotink Creek], [Belle Haven: Belle Haven], [Bull Neck Run: Bull Neck Run], ... 27 more ...)
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Templates:

Name: Inadequate Outfalls
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/27/2024 2:22:12 PM

Schema Last Edit Date: 3/27/2024 2:22:12 PM

Data Last Edit Date: 3/27/2024 1:18:21 PM