View In:   ArcGIS Online Map Viewer

Name: Flood Plains

Display Field: MUNAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Surface Water Resource Protection Areas consist of : (1) the areas which drain on the surface or underground to existing public water supply reservoirs, (2) the land surfaces in the Flood Plain upstream of an approved public water supply intake. The Flood Plain is comprised of the 100-year Flood Plain as defined in Article 33 of New Castle County Unified Development Code and (a) delineated by the Federal Emergency Management Agency (2010) and (b) soils frequently and very frequently flooded mapped by the New Castle County Soil Survey, prepared by the U.S. Department of Agriculture, Natural Resources Conservation Service (2010), and (3) Erosion Prone Slopes contiguous to and draining toward a Flood Plain or a water course upstream of an approved public water supply intake. Erosion Prone Slopes consist of soils with all or part of the area at greater than or equal to 15% slopes as mapped by the New Castle County Soil Survey, prepared by the U.S. Department of Agriculture, Natural Resources Conservation Service (2010) with map unit symbols BkD, BnF, BrvF, CnD, GaC, GaD, GaE, GeC, GgC, GgD, GhC, GnC, MaC, MaD, MaE, MxC, NtC, NvC, NvD, NvE, SaD, SaE, and UzF.</SPAN></P><P><SPAN>Surface water sources are susceptible to pollutants released in proximity to and upstream of intakes or storage facilities. Currently, these sources provide approximately 70% of the daily public water supply and most of the emergency water supply for New Castle County. The drainage areas, flood plains, and erosion prone slopes were derived from the following maps and report: (1) U. S. Geological Survey Topographic Quadrangle maps, (2) WATER 2000, Volume VII, 1984, Water Resources Agency for New Castle County (1984), (3) Digital Flood Plain Mapping, Federal Emergency Management Agency (2010), and (4) New Castle County Soil Survey, U. S. Department of Agriculture, Natural Resources Conservation Service (2010).</SPAN></P></DIV></DIV></DIV>

Copyright Text: FEMA Flood plains, NCC Soil Survey, University of Delaware Water Resource Center, DNREC, Division of Water Resources

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Spatial Reference: 102100  (3857)

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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• OBJECTID_1 ( type: esriFieldTypeOID, alias: OBJECTID_1, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID_1 )
• FID_FLOODP ( type: esriFieldTypeInteger, alias: FID_FLOODP, editable: true, nullable: true, defaultValue: null, modelName: FID_FLOODP )
• AREASYMBOL ( type: esriFieldTypeString, alias: AREASYMBOL, editable: true, nullable: true, length: 20, defaultValue: null, modelName: AREASYMBOL )
• SPATIALVER ( type: esriFieldTypeInteger, alias: SPATIALVER, editable: true, nullable: true, defaultValue: null, modelName: SPATIALVER )
• MUSYM ( type: esriFieldTypeString, alias: MUSYM, editable: true, nullable: true, length: 6, defaultValue: null, modelName: MUSYM )
• MUKEY ( type: esriFieldTypeString, alias: MUKEY, editable: true, nullable: true, length: 30, defaultValue: null, modelName: MUKEY )
• MUSYM_1 ( type: esriFieldTypeString, alias: MUSYM_1, editable: true, nullable: true, length: 254, defaultValue: null, modelName: MUSYM_1 )
• MUNAME ( type: esriFieldTypeString, alias: MUNAME, editable: true, nullable: true, length: 254, defaultValue: null, modelName: MUNAME )
• SLOPEGRADD ( type: esriFieldTypeDouble, alias: SLOPEGRADD, editable: true, nullable: true, defaultValue: null, modelName: SLOPEGRADD )
• SLOPEGRADW ( type: esriFieldTypeDouble, alias: SLOPEGRADW, editable: true, nullable: true, defaultValue: null, modelName: SLOPEGRADW )
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Templates:

• Name: Flood Plains
  Description:
  Prototype:
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  FID_FLOODP: null
  AREASYMBOL: null
  SPATIALVER: null
  MUSYM: null
  MUKEY: null
  MUSYM_1: null
  MUNAME: null
  SLOPEGRADD: null
  SLOPEGRADW: null
  BROCKDEPMI: null
  WTDEPANNMI: null
  WTDEPAPRJU: null
  FLODFREQDC: null
  FLODFREQMA: null
  PONDFREQPR: null
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  AWS050WTA: null
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  ENGCMSSMP: null
  URBRECPTDC: null
  URBRECPTWT: null
  FORPEHRTDC: null
  HYDCLPRS: null
  AWMMFPWWT: null
  MUKEY_1: null
  FID_FLOO_1: null
  OBJECTID: null
  DFIRM_ID: null
  FLD_AR_ID: null
  FLD_ZONE: null
  FLOODWAY: null
  SFHA_TF: null
  STATIC_BFE: null
  DEPTH: null
  VELOCITY: null
  BFE_REVERT: null
  DEP_REVERT: null
  
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Supported Operations:   Query   Query Analytic   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata