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Layer: Impaired Waterbodies Threat (303d) (ID: 121)

Parent Layer: Threats

Name: Impaired Waterbodies Threat (303d)

Display Field:

Type: Raster Layer

Geometry Type: null

Description: This dataset sums the CAUSES for listing a waterbody on the US EPA's 303d list by HUC 10 watershed. The line (streams) and polygon (ponds, lakes, reservoirs, etc.) GIS was obtained from the California State Water Quality Control Board and contains all streams listed on the 303d list. These GIS layers were joined to a table (also from the California State Water Quality Control Board) that lists all impaired water bodies, the pollutant for which they are listed, and the potential CAUSE of that pollutant in a water body. For this dataset, the CAUSE(S) for each water body were used to assess the level of impairment by HUC10 watershed. It was assumed that more causes per watershed implied a higher level of impairment.

Definition Expression: N/A

Copyright Text:

Default Visibility: true

MaxRecordCount: 0

Supported Query Formats: JSON, AMF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: false

Supports Statistics: false

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Extent:
Drawing Info:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields: None


Supported Operations:   Query   Generate Renderer   Return Updates