20221103
14301500
1.0
FGDC CSDGM Metadata
FALSE
20260611
17185300
002
VA_AUS_ESTUARIES
177131.897000
380555.361800
67082.189900
318527.159600
1
0.000
Projected
GCS_NAD_1983_2011
Linear Unit: Meter (1.000000)
NAD_1983_2011_Virginia_Lambert
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.5.0'><WKT>PROJCS["NAD_1983_2011_Virginia_Lambert",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-79.5],PARAMETER["Standard_Parallel_1",37.0],PARAMETER["Standard_Parallel_2",39.5],PARAMETER["Latitude_Of_Origin",36.0],UNIT["Meter",1.0],AUTHORITY["EPSG",6591]]</WKT><XOrigin>-37232800</XOrigin><YOrigin>-28884600</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>6591</WKID><LatestWKID>6591</LatestWKID></ProjectedCoordinateSystem>
20260611
17185300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Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
804-698-4191
804-698-4032
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1630 M-Th and 0700-1100 F (EDT)
Contact via email is preferred.
20260611
ArcGIS Metadata
1.0
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
804-698-4191
804-698-4032
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1630 M-Th and 0700-1100 F (EDT)
Contact via email is preferred.
None
Requests for hardcopy (CD) data should be directed to the Data Distributor.
1-3 days
Personal Geodatabase
ArcGIS 10.1.0.3035
ESRI Personal Geodatabase
final
http://www.deq.virginia.gov/Portals/0/DEQ/Water/WaterQualityAssessments/GISData/ir2016gis.zip
0.000
Feature Class
VA_AUS_ESTUARIES
2017-12-11
final
Virginia Department of Environmental Quality
vector digital data
Virginia’s 2016 305(b) assessed and 303(d) impaired hydrology features
Show all estuarine waters identified in the 2016 Virginia 305(b)/303(d) Water Quality Assessment Integrated Report.
Crediting the Virginia Department of Environmental Quality as data source is requested.
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
804-698-4191
804-698-4032
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1630 M-Th and 0700-1100 F (EDT)
Contact via email is preferred.
Virginia
rivers
assessment units
assessed waters
streams
impaired waters
305(b)
estuaries
reservoirs
303(d)
water quality assessment
lakes
Chesapeake Bay
rivers
assessment units
assessed waters
streams
impaired waters
Virginia
305(b)
estuaries
reservoirs
303(d)
water quality assessment
lakes
Chesapeake Bay
Once EPA approves the 2016 Integrated Report this data is placed within the public domain and as such DEQ assumes no liability for the use of this data. Crediting the Virginia Department of Environmental Quality as data source is requested.
Line work and attributes should not be altered except by the developer (VA DEQ). This dataset constitutes the United States Environmental Protection Agency (US EPA) approved digital version of the assessment hydrology for Virginia.
Esri ArcGIS 13.5.5.57366
-77.520858
-75.117433
36.52559
38.852551
Time period of content
2009-01-01
2014-12-31
This dataset was created from United States Geological Survey (USGS) National Hydrography Dataset (NHD) high-resolution 1:24,000 data extracted in September 2012. The NHD product was split into regional data layers for regional assessment staff to assign established assessment unit IDs based on predetermined up- and downstream extents. Some erroneous waters were removed and a few waters were corrected for spatial accuracy using Virginia Base Mapping Program orthophotography flown in 2013 thru 2015. Assessment determinations noted in this dataset are based on guidance from Virginia's 2016 Water Quality Assessment Guidance Memo 16-2005 available at http://www.deq.virginia.gov/Portals/0/DEQ/Water/Guidance/162005.pdf. This geodataset has two supplemental GIS data files: the 2016 regionally significant VPDES facilities shapefile (va_16ir_vpdes_facilities.shp) and the 2016 monitoring stations shapefile (va_16ir_wqm_stations.shp).
1
-77.520869
-75.117437
38.852473
36.525590
All arcs and polygons are used to define surface hydrologic features in the state or that VA DEQ is responsible for monitoring and assessment.
At the close of each assessment cycle the dataset is submitted to US EPA for approval whereby it is considered Virginia's completed geospatial data product.
Attributes assigned to each water segment are based on attributes associated with the ID305B (assessment unit ID) entered in the statewide water quality assessment database. QA/QC checks are performed on the database prior to linking attributes to the GIS data, however errors may still occur. Please direct any questions about attribute accuracy to the Data Distributor. The geospatial product is maintained and updated by VA DEQ each assessment cycle (biennially) using the most current NHD product where revisions were made to Virginia waters, the most recent aerial photography provided by the Virginia Geographic Information Network (VGIN), and by freehand digitizing where necessary.
Metadata .txt file revised and converted to .xml using USGS mp compiler for formal metadata and imported into the feature class using Metadata Import utility in ArcCatalog.
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
Assessment attributes (i.e. Water Name, Location, Comments, Cause and Source where applicable, Assessment Category, and Designated Use status) for all assessment units joined to each feature based on data queried from the Final 2016 Assessment Database.
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
Dataset extracted from versioned environment as personal geodatabases feature classes.
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
Removed unnecessary attribute files related to versioned editing (INSERTED_BY, INSERTED_DATE, CHANGED_BY, CHANGED_DATE, VERIFIEDBY, VERIFYDATE, GlobalID) from feature class.
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Specialist Senior
0
VA_AUS_ESTUARIES
estuarine feature data layer which includes tidal/saline waters, the Chesapeake Bay and Virginia's portion of the Atlantic Ocean
ESRI
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Sq_miles
Area of the segment calculated in square miles
VA DEQ
0.0001
372.8142
SQ_MILES
Double
8
0
0
ID305B
Unique Virginia assessment unit ID
VA DEQ
Alpha-numeric assessment unit designation for each hydrologic feature
ID305B
String
50
0
0
CYCLE
Assessment cycle
VA DEQ
2016
Assessment reporting cycle within the time period of 1/1/2009 through 12/31/2014
US EPA, VA DEQ
CYCLE
String
4
0
0
Shape
Feature geometry type
ESRI
Polygon
a closed shape of connected coordinate pairs; some features may be multipart polygons
ESRI
Coordinates defining the features.
Shape
Geometry
0
0
0
WaterName
WaterName
String
255
0
0
AU_Location
AU_Location
String
255
0
0
AU_Category
AU_Category
String
2
0
0
AU_Comment
AU_Comment
String
32767
0
0
Causes
Causes
String
255
0
0
Sources
Sources
String
32767
0
0
Aquatic_Life
Aquatic Life
String
35
0
0
Deep_Channel
Deep-Channel Seasonal Refuge
String
35
0
0
Deep_Water
Deep-Water Aquatic Life
String
35
0
0
Fish_Consumption
Fish Consumption
String
35
0
0
Migratory
Migratory Fish Spawning and Nursery
String
35
0
0
Open_Water
Open-Water Aquatic Life
String
35
0
0
Public_Water_Supply
Public Water Supply
String
35
0
0
Recreation
Recreation
String
35
0
0
Shallow_Water_SAV
Shallow-Water Submerged Aquatic Vegetation
String
35
0
0
Shellfishing
Shellfishing
String
35
0
0
Wildlife
Wildlife
String
35
0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
dataset
EPSG
8.2.10(10.3.1)
Simple
FALSE
0
TRUE
FALSE