Parent Layer: Integrated Report (IR)

Name: IR - Chromium - Impoundments

Display Field: IR2018_Impoundments_Basin_Name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer provides the polygonal areas for all impoundments in the state of Maryland for chromium assessments from 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 serves as the derivedpolygonal areas for this file and was used to geospatially describe most of Maryland's impoundments; however, MDE had to manually create the boundaries for some impoundments due to the inaccuracies within the NHD. The Maryland Department of the Environment Science Services Administration linked the Integrated Report assessment information to the NHD and then preserved this pollutant-specific layer.

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Extent:

XMin: 404114.12849999964
YMin: 189820.1933999993
XMax: 439857.6705000028
YMax: 224106.06170000136
Spatial Reference: 26985  (26985)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: IR2018_Impoundments_Listing_Cat
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: 2
  Label: 2-Meets Water Quality Criterion
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [56, 168, 0, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 0]
  Width: 0
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true

HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID , alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry , alias: Shape )
• Shape.area ( type: esriFieldTypeDouble , alias: Shape.area )
• Shape.len ( type: esriFieldTypeDouble , alias: Shape.len )
• Impoundments_2018_ComID ( type: esriFieldTypeInteger , alias: Impoundments_2018.ComID )
• IR2018_Impoundments_ID ( type: esriFieldTypeDouble , alias: IR2018_Impoundments.ID )
• IR2018_Impoundments_Cycle_First ( type: esriFieldTypeString , alias: Year First Listed , length: 255 )
• IR2018_Impoundments_AU_ID ( type: esriFieldTypeString , alias: Assessment Unit ID , length: 255 )
• IR2018_Impoundments_Basin_Name ( type: esriFieldTypeString , alias: Basin Name , length: 255 )
• IR2018_Impoundments_HUC ( type: esriFieldTypeString , alias: HUC , length: 255 )
• IR2018_Impoundments_Basin_Code ( type: esriFieldTypeString , alias: Basin Code , length: 255 )
• IR2018_Impoundments_Water_Type ( type: esriFieldTypeString , alias: General Water Type , length: 255 )
• IR2018_Impoundments_Water_Type_ ( type: esriFieldTypeString , alias: Detailed Water Type , length: 255 )
• IR2018_Impoundments_AU_Size ( type: esriFieldTypeDouble , alias: Assessment Unit Size )
• IR2018_Impoundments_AU_Units ( type: esriFieldTypeString , alias: Size Units , length: 255 )
• IR2018_Impoundments_Designated_ ( type: esriFieldTypeString , alias: Designated Use Assessed , length: 255 )
• IR2018_Impoundments_Listing_Cat ( type: esriFieldTypeString , alias: Listing Category , length: 255 )
• IR2018_Impoundments_Cause ( type: esriFieldTypeString , alias: Pollutant , length: 255 )
• IR2018_Impoundments_Sources ( type: esriFieldTypeString , alias: Predominant Source of Pollutant , length: 255 )
• IR2018_Impoundments_Action ( type: esriFieldTypeString , alias: Action , length: 255 )
• IR2018_Impoundments_Action_Year ( type: esriFieldTypeString , alias: Year of Action , length: 255 )
• IR2018_Impoundments_Notes ( type: esriFieldTypeString , alias: Notes , length: 255 )

Supported Operations:   Query   Generate Renderer   Return Updates