Identification_Information:
Citation:
Citation_Information:
Originator: State Water Resources Control Board
Publication_Date: 2006
Title: 2006 303d List of Water Quality Limited Segments that:
1) require TMDLS,
2) are being addressed by USEPA approved TMDLs, and
3) are being addressed by actions other than TMDLs
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: <http://www.swrcb.ca.gov/tmdl/303d_lists2006approved.html>
Description:
Abstract:
2006 303d List of Water Quality Limited Segments that:
1) require TMDLS,
2) are being addressed by USEPA approved TMDLs, and
3) are being addressed by actions other than TMDLs
Purpose:
Provide GIS representation of 2006 303d list of water quality limited segments
Supplemental_Information:
<http://www.swrcb.ca.gov/tmdl/303d_lists2006approved.html>
Disclaimer for the GIS Files of the 2006 303(d) List
The 2006 303(d) List GIS shape files and associated 303(d) list excel tables containing the information shown on the lists are provided on this State Water Resources Control Board website for public use. These GIS files and associated 303(d) tables can be linked by the common field “WBID” (Water body ID). These GIS representations of the areal extent of affected waters are estimated and should not be considered authoritative for the development of TMDLs (Total Maximum Daily Load) or other regulatory actions. The TMDL effort may ultimately address more or less areal extent than shown in these GIS files. Mapping the 303(d) listed waters is a work in progress and will be updated during each listing cycle to better define the impacted areas.
Time_Period_of_Content: 2002-2006
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2006
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Every two years
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.467253
East_Bounding_Coordinate: -113.763765
North_Bounding_Coordinate: 42.049825
South_Bounding_Coordinate: 32.435261
Keywords:
Theme:
Theme_Keyword: impaired water bodies
Place:
Place_Keyword: California
Access_Constraints:
Disclaimer for the GIS Files of the 2006 303(d) List
Use_Constraints:
The 2006 303(d) List GIS shape files and associated 303(d) list excel tables containing the information shown on the list are provided on this State Water Resources Control Board website for public use. These GIS files and associated 303(d) list excel tables can be linked by the common field “WBID” (Water body ID). These GIS representations of the areal extent of affected waters are estimated and should not be considered authoritative for the development of TMDLs (Total Maximum Daily Load) or other regulatory actions. The TMDL effort may ultimately address more or less areal extent than shown in these GIS files. Mapping the 303(d) listed waters is a work in progress and will be updated during each listing cycle to better define the impacted areas.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State Water Resources Control Board
Contact_Address:
Address: 1001 I St
City: Sacramento
State_or_Province: CA
Postal_Code: 95814
Data_Set_Credit: State Water Resources Control Board and Regional Water Quality Control Boards
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.0.1324
Data_Quality_Information:
Lineage:
Source_Information:
Source_Scale_Denominator: 1:100,000 Teale hydrography (Reach File)
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2006
Source_Currentness_Reference: publication date
Source_Contribution:
The Bay and Harbors, Estuaries, and Wetlands layers are user-created layers. The polygons in this layer were created at various scales as the user zooms to the area of interest and defines the water body boundaries using on-screen digitizing.
The Lakes layer is a user created layer of lake polygons. This layer is a subset of the 'Lakes' layer desrcibed below. The lake polygons in this layer are created by the user selecting lakes from the 'DFG Lakes' layer to represent the water body being assessed. The original lakes layer is a polygon coverage of several thousand California lakes and standing waters. The polygons represent lake shorelines, and the polygon attributes include lake names and codes relating to a historical database of water quality and fisheries management information. The coverage linework was prepared by the California Department of Fish and Game (DFG) Inland Fisheries Division (IFD) by extracting standing-water polygons from U.S. Geological Survey (USGS) 1:100,000-scale Digital Line Graph data (DLG-3; MINOR1 = 421 or 101: lake, pond, or reservoir). Polygon attributes were re-classified to separate actual standing waters, dry lakes, and islands within lakes. USGS Geographic Names Information System (GNIS) data were used to populate the name and code fields of the polygon attributes. Approximately 400 additional polygons were digitized by IFD from USGS 7.5'-series quads to match GNIS points that had no corresponding polygons in the DLG-3 data.
The Rivers and Coastline layers were created from a subset of the USEPA Reach File 3 base layer 1:100,000. The shoreline and river features were created by the user selecting appropriate reaches from the reach file to represent the water body being assessed.
Process_Step:
Process_Description: Dataset copied.
Process_Date: August 2006
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State Water Resources Control Board
Process_Step:
Process_Description: Dataset moved.
Source_Used_Citation_Abbreviation:
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count:
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area (Teale)
Albers_Conical_Equal_Area:
Standard_Parallel: 34.000000
Standard_Parallel: 40.500000
Longitude_of_Central_Meridian: -120.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 0.000000
False_Northing: -4000000.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: shapefiles
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attributes for polygon- type
water bodies (estuaries, lakes, bays and harbors, and wetlands):
Attribute_Label: AREA
Attribute_Definition: Area of the polygon in square coverage units
Attribute_Label: PERIMETER
Attribute_Definition: Polygon perimeter in meters
Attribute_Label: LAKES
Attribute_Definition: ARC/INFO use
Attribute_Label: ID
Attribute_Definition: ARC/INFO use
Attribute_Label: WATER
Attribute_Definition: Water status in lake
Attribute_Label: NAME
Attribute_Definition: Lake name
Attribute_Label: WRCBLAKES
Attribute_Definition: Foreign key to lakes.dat
Attribute_Label: GNIS_ID
Attribute_Definition: GNIS name code
Attribute_Label: IFDKEY
Attribute_Definition: Unique identifier number in DFG lakes
layer
Attribute_Label: WBID
Attribute_Definition: Unique identifier number
Attribute_Label: WBNAME
Attribute_Definition: User assigned water body name
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: REGION_NUM
Attribute_Definition: Regional Water Quality Control Board Number
Attribute_Label: WBTYPE_NAM
Attribute_Definition: The water body type (e.g., lake, wetland etc.)
Attribute_Label: WBTYPE_ABB
Attribute_Definition: Abbreviation of the water body type
Attributes for linear type
water bodies (rivers and shorelines):
Attribute_Label: LENGTH
Attribute_Definition: Length of linear segment in meters.
Attribute_Label: TDCKEY
Attribute_Definition: Teale hydrography primary key
Attribute_Label: PNAME
Attribute_Definition:
Primary name assigned to linear segment in the USEPA River Reach File3. Names were taken from USGS Topological
maps.
Attribute_Label: PNMCD
Attribute_Definition:
Primary name code
Attribute_Label: RFORGFLAG
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: UPDATE2
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: UPDTCD2
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: UPDTSRC2
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: FILLER
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: RF3RCHID
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: WBID
Attribute_Definition: Unique identifier number
Attribute_Label: WBNAME
Attribute_Definition: User assigned water body name
Attribute_Label: REGION_NAM
Attribute_Definition: Regional Water Quality Control Board drainage basin which the water body is found
Attribute_Label: REGION_NUM
Attribute_Definition: Regional Water Quality Control Board Number
Attribute_Label: WBTYPE_NAM
Attribute_Definition: The water body type (e.g., river, shoreline, etc.)
Attribute_Label: WBTYPE_ABB
Attribute_Definition: Abbreviation of the water body type
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State Water Resources Control Board
Contact_Address:
Address: 1001 I St
City: Sacramento
State_or_Province: CA
Postal_Code: 95814
Resource_Description:
Downloadable Data from www.waterboards.ca.gov
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 6.892
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2006
Metadata_Reference_Information:
Metadata_Date: 20070821
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: State Water Resources Control Board
Contact_Address:
Address_Type: mailing address
Address: 1001 I St
City: Sacramento
State_or_Province: CA
Postal_Code: 95814
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.8.6 on Tue Aug 21 11:36:38 2007