Parent Layer: Integrated Report (IR)

Name: IR - Copper Point Sources - Tidal Water

Display Field: IR2018_TW_PointSources_Cycle_Fi

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: The assessments represented by this layer originated from the 304(l) list. This layer provides the point locations of National Pollutant Discharge Elimination System (NPDES) permitted discharges for copper that were assessed in the 2016 Integrated Report. Assessment information includes all assessments captured within Maryland's 2016 Integrated Report and are generally displayed according to Categories: impaired and require a TMDL (Category 5), impaired and have a TMDL approved by the Environmental Protection Agency (EPA) (Category 4a), impaired but have exemptions from needing a TMDL (Categories 4b-4c), insufficient data is available to determine if water is meeting all standards (Category 3), are meeting some standards (Category 2), and waters that are meeting all standards (Category 1).

Definition Expression: N/A

Copyright Text: The Maryland Department of the Environment (MDE) acknowledges the U.S. Geological Survey (USGS) which created the National Hydrography Dataset (NHD). The NHD was used for the polygonal areas of the coastal bays and oceans used to geospatially describe Maryland's water quality assessments for a variety of pollutants. MDE also acknowledges the Chesapeake Bay Foundation as their tidal bay segmentation file that was used to represent the polygonal areas of the Chesapeake Bay. These files were then merged with NHD and linked with the IR assessment information.

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Extent:

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YMin: 169785.69909999892
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YMax: 173397.26429999992
Spatial Reference: 26985  (26985)

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• Value: 2
  Label: 2-Meets Water Quality Criterion
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• Value: 4b
  Label: 4b-Impaired, Technology Solution Initiated
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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID , alias: OBJECTID )
• SHAPE ( type: esriFieldTypeGeometry , alias: Shape )
• TW_PointSources_2018_ComID ( type: esriFieldTypeInteger , alias: TW_PointSources_2018.ComID )
• IR2018_TW_PointSources_ID ( type: esriFieldTypeDouble , alias: IR2018_TW_PointSources.ID )
• IR2018_TW_PointSources_Cycle_Fi ( type: esriFieldTypeString , alias: Year First Listed , length: 255 )
• IR2018_TW_PointSources_AU_ID ( type: esriFieldTypeString , alias: Assessment Unit ID , length: 255 )
• IR2018_TW_PointSources_Basin_Na ( type: esriFieldTypeString , alias: Basin Name , length: 255 )
• IR2018_TW_PointSources_HUC ( type: esriFieldTypeString , alias: HUC , length: 255 )
• IR2018_TW_PointSources_Basin_Co ( type: esriFieldTypeString , alias: Basin Code , length: 255 )
• IR2018_TW_PointSources_Water_Ty ( type: esriFieldTypeString , alias: General Water Type , length: 255 )
• IR2018_TW_PointSources_Water__1 ( type: esriFieldTypeString , alias: Detailed Water Type , length: 255 )
• IR2018_TW_PointSources_AU_Size ( type: esriFieldTypeDouble , alias: Assessment Unit Size )
• IR2018_TW_PointSources_AU_Units ( type: esriFieldTypeString , alias: Size Units , length: 255 )
• IR2018_TW_PointSources_Designat ( type: esriFieldTypeString , alias: Designated Use Assessed , length: 255 )
• IR2018_TW_PointSources_Listing_ ( type: esriFieldTypeString , alias: Listing Category , length: 255 )
• IR2018_TW_PointSources_Cause ( type: esriFieldTypeString , alias: Pollutant , length: 255 )
• IR2018_TW_PointSources_Sources ( type: esriFieldTypeString , alias: Predominant Source of Pollutant , length: 255 )
• IR2018_TW_PointSources_Action ( type: esriFieldTypeString , alias: Action , length: 255 )
• IR2018_TW_PointSources_Action_Y ( type: esriFieldTypeString , alias: Year of Action , length: 255 )
• IR2018_TW_PointSources_Notes ( type: esriFieldTypeString , alias: Notes , length: 255 )

Supported Operations:   Query   Generate Renderer   Return Updates