Polyline layer of freshwater riverine features within Virginia included in the 2020 305(b)/303(d) Integrated Report

Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources.

Polygon layer of lakes and reservoirs within Virginia included in the 2020 305(b)/303(d) Integrated Report

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Location of active air aites/facilities throughout Virginia.

A point layer representing locations of Virginia DEQ regional and central office locations.

All estuarine waters identified in the 2016 Virginia 305(b)/303(d) Water Quality Assessment. Line work and attributes should not be altered except by the developer (DEQ). This dataset constitutes the United States Environmental Protection Agency (EPA) approved digital version of the assessment hydrology for Virginia. 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 is provided in the data Fact Sheet which contains contact information, process steps, attribute descriptions, and distribution information.

The Virginia Water Protection Program (VWP) regulates activities in all surface waters which includes wetlands, streams, and open water. A permit (general permit coverage or individual permit) may be required in accordance with program regulations and State Water Control Law. This layer represents the project location of both active and historic VWP General Permit Coverage (GP) issued across the state. The General Permit Tracking number, name, and regional office are among several attributes in this layer. The attribute data is pulled from DEQ's Comprehensive Environmental Data System (CEDS). The GIS data layers and maps produced by the Virginia Department of Environmental Quality (DEQ) are provided as a public resource. The Virginia Department of Environmental Quality has attempted to ensure the accuracy and completeness of the data. DEQ makes or extends no warranties of any type, expressed or implied, including but not limited to: appropriateness of use, accuracy, or completeness of data.
DEQ does not guarantee the GIS data provided is complete or current because the information contained in these data may change over time. These data and related maps are not legal documents and should not be construed or used as such. It is encouraged that these data are obtained from a DEQ resource and not through other sources which may lead to changed or outdated data. While using DEQ GIS data, the use and modification of such data is done at the risk of the user, and where DEQ holds no liability of any nature resulting from the use or correctness of this data.
Pursuant to Section 54.1-402, paragraph C of the Code of Virginia, this data may not be used for purposes listed in said paragraph C, since the data was not created, nor is it maintained under the supervision of a licensed land surveyor.

The Virginia Water Protection Program (VWP) regulates activities in all surface waters which includes wetlands, streams, and open water. A permit (general permit coverage or individual permit) may be required in accordance with program regulations and State Water Control Law. This layer represents the project boundaries of both active and historic VWP General Permits and VWP Individual Permits for the state. The VWP permit's number, name, and regional office are among several attributes in this layer. The permit boundaries are drawn to represent the project boundary map provided by the permittee. The GIS data layers and maps produced by the Virginia Department of Environmental Quality (DEQ) are provided as a public resource. The Virginia Department of Environmental Quality has attempted to ensure the accuracy and completeness of the data. DEQ makes or extends no warranties of any type, expressed or implied, including but not limited to: appropriateness of use, accuracy, or completeness of data.
DEQ does not guarantee the GIS data provided is complete or current because the information contained in these data may change over time. These data and related maps are not legal documents and should not be construed or used as such. It is encouraged that these data are obtained from a DEQ resource and not through other sources which may lead to changed or outdated data. While using DEQ GIS data, the use and modification of such data is done at the risk of the user, and where DEQ holds no liability of any nature resulting from the use or correctness of this data.
Pursuant to Section 54.1-402, paragraph C of the Code of Virginia, this data may not be used for purposes listed in said paragraph C, since the data was not created, nor is it maintained under the supervision of a licensed land surveyor.

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