Name: Umpqua_DMAs_RPs

Display Field: DMA_RP

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This feature presents land ownership and jurisdiction which DEQ uses to identify potential Designated Management Agencies (DMAs) and other responsible persons that may have Total Maximum Daily Load (TMDL) implementation responsibilities. A designated management agency (DMA) is defined in OAR 340-042-0030(2) as a federal, state, or local governmental agency that has legal authority over a sector or source contributing pollutants. Typically persons, including DMAs responsible for implementing management strategies and developing and revising sector-specific or source-specific implementation plans are identified in TMDL Water Quality Management Plans (WQMPs) as described in OAR 340-042-0040(4)(I)(H). This map does not explicitly map or claim consistency with DMA’s identified in TMDL Water Quality Management Plans.The land ownership and jurisdiction for any location is determined by a combination of ownership, land use, zoning, and jurisdictional boundaries, such as city limits or county boundary. Cadastral boundaries and ownership information were acquired from county tax assessors. Ownership information provided by a county tax assessor was assumed to be the most accurate information.

Copyright Text: Oregon Department of Environmental Quality, Baker County, Benton County, Clackamas County, Clatsop County, Columbia County, Coos County, Crook County, Curry County, Deschutes County, Gilliam County, Grant County, Harney County, Hood River County, Jackson County, Jefferson County, Josephine County, Klamath County, Lake County, Lane County, Lincoln County, Linn County, Marion County, Morrow County, Multnomah County, Polk County, Tillamook County, Umatilla County, Union County, Wasco County, Wheeler County, Yamhill County, Homer et al 2015, Oregon Department of Land Conservation and Development, Oregon Department of Forestry, Bureau of Land Management, Oregon Department of Transportation, and United States Department of Agriculture Farm Service Agency, NAIP. Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015, Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, v. 81, no. 5, p. 345-354.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 328676.645992124
YMin: 358744.329068238
XMax: 919427.952422573
YMax: 828134.004265089
Spatial Reference: PROJCS["NAD83 / Oregon GIC Lambert (ft)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["false_easting",1312335.958],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-120.5],PARAMETER["standard_parallel_1",43.0],PARAMETER["standard_parallel_2",45.5],PARAMETER["latitude_of_origin",41.75],UNIT["Foot",0.3048]]

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• DMA_RP (type: esriFieldTypeString, alias: DMA_RP, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• DMA_RP_Ab (type: esriFieldTypeString, alias: DMA_RP_Ab, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• DMA_RP_Cl (type: esriFieldTypeString, alias: DMA_RP_Cl, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• Symbol (type: esriFieldTypeString, alias: Symbol, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
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• HUC8 (type: esriFieldTypeString, alias: HUC8, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• HUC10 (type: esriFieldTypeString, alias: HUC10, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• HUC12 (type: esriFieldTypeString, alias: HUC12, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• Version (type: esriFieldTypeString, alias: Version, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Umpqua_DMAs_RPs
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 6/5/2026 5:23:57 PM

Schema Last Edit Date: 6/5/2026 5:23:57 PM

Data Last Edit Date: 6/3/2026 8:04:33 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat