20221117
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va_aus_estuarine_2022_final_wm
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-8369774.207900
4376618.056400
4699494.263000
1
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
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20221117
17113500
Biennially, DEQ must produce a Water Quality Assessment Integrated Report (IR) on the surface waters within the state’s jurisdiction as mandated by the Clean Water Act (CWA) sections 303(d), 305(b), and 314 and the state’s Water Quality Monitoring, Information, and Restoration Act (WQMIRA). This geographic layer is a component of the process to produce the statistics and maps shown in the IR. Data from DEQ and non-DEQ contributors collected from Jan. 1 2015 through Dec. 31 2020 was used to characterize each applicable Assessment Unit (AU) within the Commonwealth.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Display and define all surface waters of the commonwealth identified within the 2022 305(b)/303(d) Water Quality Assessment Integrated Report. The Assessment Unit (AU) 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 used by DEQ regional assessment staff to assign previously established assessment unit IDs based on predetermined up- and downstream extents and applicable Water Quality Standards. Some erroneous waters were removed and a few waters were corrected for spatial accuracy using Virginia Base Mapping Program aerial photography from Virginia Geographic Information Network (VGIN), and recent NHD data where available.</SPAN></P></DIV></DIV></DIV>
va_aus_estuarine
Virginia's Final 2022 Integrated Report Estuarine Assessment Units
2022-11-07T00:00:00
Final
20221107
external
38bfbb8dbd95c175ff69e5b7f9d6d22
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Analyst Senior
804-774-9391
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1730 M-Th (EDT)
Contact via email is preferred.
Cleo L. Baker
Cleo L. Baker
Cleo L. Baker
True
Cleo L. Baker
external
2713de182c2f81148a7f6e4e4c881981
Virginia Department of Environmental Quality
True
Virginia Department of Environmental Quality
estuaries
tidal tributaries
ocean
305(b)
303(d)
assessed waters
impaired waters
Chesapeake Bay
Atlantic Ocean
assessment units
water quality assessment
Virginia Department of Environmental Quality, Office of Ecology, Water Monitoring and Assessment Program
-77.520858
-75.117433
38.852551
36.525590
1
Represents assessment determinations applicable for samples collected between 01 January 2015 and 31 December 2020 or carryover impairments from data collected prior to the current data window.
2015-01-01T00:00:00
2020-12-31T00:00:00
Virginia
ArcGIS Desktop 10.7.1.11595
external
38bfbb8dbd95c175ff69e5b7f9d6d22
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Analyst Senior
804-774-9391
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1730 M-Th (EDT)
Contact via email is preferred.
Cleo L. Baker
Cleo L. Baker
Cleo L. Baker
True
Cleo L. Baker
This geographic information system (GIS) data is made available as a public service. This dataset is to be used for reference purposes only. The Virginia Department of Environmental Quality (DEQ) Water Monitoring and Assessment (WMA) Program provides this data (hereafter referred to as the “data”) “as-is” and does not warrant or guarantee its completeness or accuracy. The data is provided with the understanding that it may not be accurate, correct or complete for your intended purpose. DEQ shall not be held liable for any use or application of the data provided. DEQ assumes no responsibility for the use or application of the data or information derived from interpretation of the data. Neither DEQ nor any DEQ employee shall be held personally or legally responsible for any loss or damages, direct or indirect from the use, modification or interpretation of the data. The data is within the public domain, is provided free of charge and is not to be sold. The data may be copied without permission; citation of DEQ as the source is requested. Any requests for DEQ data should be referred to DEQ. Download and/or use of this data implies your agreement to these conditions.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>There are no access limitations. Line work and attributes should not be altered except by the developer (DEQ). Crediting the Virginia Department of Environmental Quality as data source is requested. This data may be shared with others.</SPAN></P></DIV></DIV></DIV>
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20221012
external
38bfbb8dbd95c175ff69e5b7f9d6d22
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Analyst Senior
804-774-9391
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1730 M-Th (EDT)
Contact via email is preferred.
Cleo L. Baker
Cleo L. Baker
Cleo L. Baker
True
Cleo L. Baker
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Line work and attributes should not be altered except by the developer (DEQ). This data is provided as a public service and metadata is believed to be as complete as possible. Any errors or omissions are unintentional and should be brought to the attention of the data point of contact or distributor.</SPAN></P></DIV></DIV></DIV>
1448
The assessment unit (AU) hydrology data was edited in a versioned environment on DEQ’s GIS server and synced to the server by each regional editor at the completion of all editing and attribution updates. Once all features were posted to the server the data was processed via Data Reviewer to correct or remove as many topology and attribution errors as possible, if necessary. A flat file was exported of the attributes to validate against the records in CEDS WQA. The processed GIS data was then posted back to the server and exported via ArcCatalog to a local feature dataset for further processing. The details from the assessment database were compiled per unique AU identifier (AU ID / ID305B) and joined to each AU ID in the estuarine GIS feature class. Questions regarding the processing of the AU hydrology data should be directed to the data’s point of contact.
Reviewed AU data for each region as data was submitted over the course of months between August 2021 and August 2022. Per the results of regional input during the draft public comment period (July 4 - Aug 5, 2022), records were updated where necessary.
2022-08-19T00:00:00
Extracted assessment details from CEDS.
2022-09-26T00:00:00
Assessment details processed and joined to each AU.
2022-10-06T00:00:00
Metadata updated.
2022-10-12T00:00:00
va_aus_estuarine
Feature class
1448
Virginia's 2022 Integrated Report Estuarine Assessment Units
VA DEQ
OBJECTID
OBJECTID
Internal feature number.
Esri
OID
4
Sequential unique whole numbers that are automatically generated.
0
0
Shape
Shape
Feature geometry.
Esri
Geometry
0
Coordinates defining the features.
0
0
ID305B
ID305B
Virginia Assessment Unit Identifier
VA DEQ
String
50
Alpha-numeric assessment unit identifier
0
0
Sq_miles
Sq_miles
VA DEQ
Double
8
Size of the segment calculated in square miles
0.0001
372.8142
0
0
CYCLE
CYCLE
Assessment cycle
VA DEQ
String
4
2022
Assessment reporting cycle within the time period of 1/1/2015 through 12/31/2020
VA DEQ
0
0
WaterName
WaterName
Name of the water body
VA DEQ
String
255
Name of the water feature
0
0
AU_Location
AU_Location
Location of the water feature
VA DEQ
String
255
Description of the Assessment Unit’s location or extent
0
0
AU_Category
AU_Category
Virginia assessment unit category ID representing the overall assessment characterization of the water body per Assessment Guidance criteria stated in Guidance Memo GM21-2002.
VA DEQ
String
2
2A
VA DEQ
The water is supporting all designated uses for which it is monitored.
2B
VA DEQ
The water is of concern to the state but no Water Quality Standard exists for a specific pollutant, or the water exceeds a state screening value or toxicity test.
2C
VA DEQ
The water is now attaining the use(s) for which it was originally 303(d) listed and the TMDL is EPA approved but other applicable uses(s) were not monitored and assessed.
3A
VA DEQ
There is no data available within the data window of the current assessment to determine if any designated use is attained and the water was not previously listed as impaired.
3B
VA DEQ
Some data exists but are insufficient to determine support of any designated use. Such waters will be prioritized for follow up monitoring as needed.
4A
US EPA
The water is impaired or threatened for one or more designated uses but does not require a TMDL because the TMDL for specific pollutant(s) is complete and US EPA approved.
5A
The Water Quality Standard is not attained. The water is impaired or threatened for one or more designated uses by a pollutant(s) and requires a TMDL (303(d) list).
VA DEQ
5D
The Water Quality Standard is not attained where TMDLs for a pollutant(s) have been developed but one or more pollutants are still causing impairment requiring additional TMDL development.
VA DEQ
5F
The Water Quality Standard is attained for a pollutant(s) with a TMDL and 303(d) delisting is approved but the water remains impaired for additional pollutant(s) requiring TMDL development.
VA DEQ
5R
The Water Quality Standard is not attained and the water is impaired, and implementation of an EPA-accepted restoration plan is expected to result in attainment (303d list). A status update will be provided each 303(d) cycle to evaluate progress.
VA DEQ
0
0
AU_Comment
AU_Comment
Assessment Unit Comments
VA DEQ
String
2147483647
General assessment comments in free-text form concerning the assessment unit.
0
0
Causes
Causes
Cause(s) of impairment
VA DEQ
String
2147483647
All causes of impairment that exceeded their Water Quality Standard criteria; otherwise null to denote assessment units not impaired (i.e. Category 1* or 2*) or not assessed/insufficient information (i.e. Category 3*)
0
0
Sources
Sources
Source(s) of impairment
VA DEQ
String
2147483647
Suspected or confirmed source(s) attributed to the impairment cause(s); otherwise null to denote assessment units not impaired (i.e. Category 1* or 2*) or not assessed/insufficient information (i.e. Category 3*)
0
0
Aquatic_Life
Aquatic Life
Aquatic Life Designated Use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Insufficient Information
There is insufficient information to determine assessment status for the designated use.
US EPA
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Deep_Channel_Seasonal_Refuge
Deep-Channel Seasonal Refuge
Deep-Channel Seasonal Refuge (Aquatic Life) Sub-use assessment status
VA DEQ
String
35
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Deep_Water_Aquatic_Life
Deep-Water Aquatic Life
Deep-Water Aquatic Life Sub-use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Fish_Consumption
Fish Consumption
Fish Consumption Designated Use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Insufficient Information
There is insufficient information to determine assessment status for the designated use.
US EPA
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Migratory_Fish_Spawning_and_Nursery
Migratory Fish Spawning and Nursery
Migratory Fish Spawning and Nursery (Aquatic Life) Sub-use assessment status
VA DEQ
String
35
Insufficient Information
There is insufficient information to determine assessment status for the designated use.
US EPA
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Open_Water_Aquatic_Life
Open-Water Aquatic Life
Open-Water Aquatic Life Sub-use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Public_Water_Supply
Public Water Supply
Public Water Supply Designated Use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Recreation
Recreation
Recreation (swimming) Designated Use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Insufficient Information
There is insufficient information to determine assessment status for the designated use.
US EPA
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Shallow_Water_Submerged_Aquatic_Vegetation
Shallow-Water Submerged Aquatic Vegetation
Shallow-Water Submerged Aquatic Vegetation (Aquatic Life) Sub-use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Shellfishing
Shellfishing
Shellfishing Designated Use assessment status
VA DEQ
String
35
Fully Supporting
US EPA
The water is fully supporting the criteria set for the designated use.
Not Applicable
The designated use is not applicable to this assessment unit.
VA DEQ
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Wildlife
Wildlife
Wildlife Designated Use assessment status
VA DEQ
String
35
Fully Supporting
The water is fully supporting the criteria set for the designated use.
US EPA
Insufficient Information
There is insufficient information to determine assessment status for the designated use.
US EPA
Not Assessed
The water has not been assessed to determine assessment status of the designated use.
US EPA
Not Supporting
The water is not supporting the criteria set for the designated use.
US EPA
0
0
Shape_Length
Shape_Length
Length of feature in internal units.
Esri
Double
8
Positive real numbers that are automatically generated.
0
0
Shape_Area
Shape_Area
Area of feature in internal units.
Esri
Double
8
Positive real numbers that are automatically generated.
0
0
File Geodatabase Feature Class
ArcGIS 10.7.1.11595
Esri File Geodatabase
external
38bfbb8dbd95c175ff69e5b7f9d6d22
Cleo L. Baker
Virginia Department of Environmental Quality
Environmental/GIS Data Analyst Senior
804-774-9391
P.O. Box 1105
Richmond
Virginia
23218-1105
US
Cleo.Baker@deq.virginia.gov
0700-1730 M-Th (EDT)
Contact via email is preferred.
Cleo L. Baker
Cleo L. Baker
Cleo L. Baker
True
Cleo L. Baker
none
2022-11-07T00:00:00
Requests can be directed to the data's point of contact. Requests for format changes may be honored if possible to do so, but format changes will not be adjusted for in the internal metadata file. The content and schema of the personal geodatabase is represented in the metadata.
1-3 days
MB
8
dataset
EPSG
8.8(9.3.1.2)
Simple
FALSE
1448
TRUE
FALSE