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Virginia department of environmental quality (DEQ)
L o a d i n g

Responsible for administering laws and regulations related to air quality, water quality, water supply, renewable energy and land protection, DEQ is the environmental agency in the Commonwealth of Virginia.

Available DatasetsShowing 172 of 172 results
    Title
    Updated
  • 2020 Final WQA Monitoring Stations
    Point layer of water quality monitoring stations included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Renewable Energy Permits
    This dataset represents the geospatial location of Renewable Energy projects tracked by Virginia DEQ; data type is point.This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    4 weeks ago
  • VWP SSWD Boundaries
    Work impacting state surface waters may require a VWP permit in accordance with VWP program regulations and State Water Control Law. A complete application for a VWP permit requires a State Surface Waters Determination (SSWD) that maps the location of state surface waters within a project site as approved by DEQ through the SSWD process. This layer represents the boundaries of active VWP State Surface Waters Determinations (SSWDs) issued across the state.Data Fact Sheet
    6
    4 weeks ago
  • Sec 130 Development Atlas
    The Virginia Renewable Energy Development Atlas (REDA) is planning-level spatial data locating the Commonwealth's renewable energy permit locations. This dataset contains point addresses for renewable energy Section 130 de minimis permit sites authorized by DEQ. All actively permitted renewable energy permits, including facilities that have not been constructed and facilities that have not commenced commercial operation are included. Dataset updated intermittently on an as needed basis. Data contained within the Renewable Energy Development Atlas is not reflective of existing or future land disturbance. An up-to-date review of existing land disturbance as a result of utility-scale solar development across the Commonwealth can be viewed here.DEQ Data Fact Sheet
    6
    4 weeks ago
  • Virginia Physiographic Regions
    This is a polygon coverage of Physiographic Divisions in the conterminous United States cropped to the state boundary of Virginia. It was automated from Fenneman's 1:7,000,000-scale map, "Physical Divisions of the United States," which is based on eight major 1946 divisions, 25 provinces, and 86 sections representing distinctive areas having common topography, rock types and structure, and geologic and geomorphic history.
    6
    4 weeks ago
  • Trout Streams / Rivers
    This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to see Data Fact Sheet. 
    6
    4 weeks ago
  • Active Air Sites
    Location of active air aites/facilities throughout Virginia.This layer represents all active VA DEQ permitted air facilities within Virginia. The Active Air Sites (daily) data layer is governed and managed by the Air and Renewable Energy Division. GIS coordinates are determined by 911 addresses or other location information that is confirmed by DEQ staff as the Air Sites are added and updated. Pertinent information such as registration number, site name, address fields, status, and other information about the Air Site is included with the data layer. The layer can also be related to the emissions table (current year) to view total reported emissions by pollutant type per air facility.Click Here to view Data Fact SheetsThis dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates.
    6
    4 weeks ago
  • PREP Reports
    DEQ Pollution Response Program (PREP), provides for responses to air, water, and waste pollution incidents in order to protect human health and the environment. This layer provides a detailed description of multimedia pollution inspection reports filed through PREP beginning May 29, 2019. These details include, but are not limited to, the location of a pollution incident, the date of an incident, the description of an incident, and the current status of an incident.Click Here to view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    4 weeks ago
  • Implementation Watersheds (IP)
    Polygon layer representing all watershed Boundaries for the Implementation Watersheds, including Approved, In Progress and Completed Implementation Areas.Click Here to see the Data Facts Sheet.
    8
    4 weeks ago
  • TMDL Watersheds
    This dataset depicts TMDL watershed boundaries. A TMDL watershed is the area covered by a TMDL equation. It consists of one or more impaired streams that have an assigned Cause Group Code (CGC). The CGC is the link between the TMDL and the Assessment Report. The TMDL equations are stored in a table in the TMDL database. Currently, the database contains about 650 equations, which are set across the entire state. Each equation includes the Waste Load Allocation (WLA), which is the portion of the TMDL that accounts for pollution from point sources (permits). The WLA cannot be exceeded during permit reissuance or its TMDL equation must be modified. Click Here to view Data Fact Sheet.
    8
    4 weeks ago
  • Biosolids Areas
    Boundary of permitted sites that includes one or more land application fields, and may include setback areas or other areas not authorized for land application of biosolids and/or other residuals.This dataset is updated on a nightly basis. Note that the ‘date modified’ metadata is not reflective of these nightly row level data updates.
    6
    4 weeks ago
  • Biosolids Area Info Table
    Non-spatial related table that can be joined to the Biosolids Areas spatial layer on the DEQ Control Number field to increase attribution and reference data. This is a many to one relationship listing permit numbers and fields permitted for land application Since 2008
    6
    4 weeks ago
  • Biosolids Site Address Info Table
    Non-spatial related table that can be joined to the Biosolids Site Addresses spatial layer (above) on the Buffer_ID field to increase attribution and reference data
    6
    4 weeks ago
  • Virginia Water Protection (VWP) General Permits
    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.Click Here to view Data Fact Sheet. 
    6
    4 weeks ago
  • Virginia Water Protection (VWP) Non-Permit (NP)
    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. Additionally, the VWP Permit Program keeps record of compliance activities such as pre-application site visits, inspections, complaints, and other compliance-related actions. These categories are tracked in DEQ's Comprehensive Environmental Data System (CEDS) as “VWP Non-Permit (NP)” records. These records may or may not be associated with VWP permit records in CEDS. The site name, Non-Permit tracking number, 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.Click Here to view Data Fact Sheet. 
    6
    4 weeks ago
  • Virginia Water Protection (VWP) Project Boundaries
    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.Click Here to view Data Fact Sheet. 
    6
    4 weeks ago
  • Estuaries (2022 Final WQA IR Assessment)
    Polygon layer of estuarine and saltwater features within Virginia's territorial limit included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Reservoirs (2022 Final WQA IR Assessment)
    Polygon layer of lakes and reservoirs within Virginia included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Rivers (2022 Final WQA IR Assessment)
    Polyline layer of freshwater riverine features within Virginia included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Estuaries (2020 Final WQA IR Assessment)
    Polygon layer of estuarine and saltwater features within Virginia's territorial limit included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Reservoirs (2020 Final WQA IR Assessment)
    Polygon layer of lakes and reservoirs within Virginia included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet.
    8
    4 weeks ago
  • Rivers (2020 Final WQA IR Assessment)
    Polyline layer of freshwater riverine features within Virginia included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    4 weeks ago
  • Tidal Flow Paths WQS
    This is a reference dataset for the Virginia Water Quality Standards for the tidal flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.
    6
    4 weeks ago
  • Cumulative Impact Assessment
    An environmental stressor is defined as an indicator of environmental pollution. Environmental stressors included in this analysis are ground level ozone, fine particulate matter (PM 2.5), VPDES IP outfalls, Solid Waste facilities, and Hazardous Waste Facilities. The stressor screening compares the environmental stressors in an EJ community to the environmental stressors for comparable, non-EJ communities. The purpose is to identify whether that EJ community may experience a disproportionate share of negative environmental consequences. This is the standard under the Virginia Environmental Justice Act, § 2.2-234 and 2.2-235 of the Code of Virginia. For the stressor screening, “community” is defined at the census block group scale.
    11
    4 weeks ago
  • EJ Communities
    An environmental stressor is defined as an indicator of environmental pollution. Environmental stressors included in this analysis are ground level ozone, fine particulate matter (PM 2.5), VPDES IP outfalls, Solid Waste facilities, and Hazardous Waste Facilities. The stressor screening compares the environmental stressors in an EJ community to the environmental stressors for comparable, non-EJ communities. The purpose is to identify whether that EJ community may experience a disproportionate share of negative environmental consequences. This is the standard under the Virginia Environmental Justice Act, § 2.2-234 and 2.2-235 of the Code of Virginia. For the stressor screening, “community” is defined at the census block group scale.
    11
    4 weeks ago
  • EJ Guidance Stressor Screening Data Layers
    An environmental stressor is defined as an indicator of environmental pollution. Environmental stressors included in this analysis are ground level ozone, fine particulate matter (PM 2.5), VPDES IP outfalls, Solid Waste facilities, and Hazardous Waste Facilities. The stressor screening compares the environmental stressors in an EJ community to the environmental stressors for comparable, non-EJ communities. The purpose is to identify whether that EJ community may experience a disproportionate share of negative environmental consequences. This is the standard under the Virginia Environmental Justice Act, § 2.2-234 and 2.2-235 of the Code of Virginia. For the stressor screening, “community” is defined at the census block group scale.
    2
    4 weeks ago
  • EPA RCRA Active Generators (All)
    The Resource Conservation and Recovery Act Information System (RCRAInfo) is EPA’s comprehensive information system in support of the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. It tracks many types of information about generators, transporters, treaters, storers, and disposers of hazardous waste. Full Metadata
    6
    2 months ago
  • Virginia Septage Acceptance Layer
    This feature layer represents reviewed and approved wastewater treatment facilities that accept hauled septage (septic) and other regulated wastes. Data is collected through a Survey123 form completed by permitted facilites and reviewed by DEQ staff prior to publication as a points layer displayed on DEQ's public Environmental Data Mapper (EDM).The layer is designed to support public-facing applications that help waste haulers locate appropriate disposal facilities, thereby promoting lawful disposal practices and reducing environmental impacts. Data is maintained through an ongoing submission and approval workflow. GIS Data Fact Sheet
    11
    2 months ago
  • 2020 Final WQA Monitoring Stations
    Point layer of water quality monitoring stations included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    2 months ago
  • Communities of Color - Over Statewide Average Open Data
    This data supports the identification of Virginia’s environmental justice communities with additional layers available on the Virginia EJScreen+ Experience Builder for community outreach purposes such as public meetings. It is intended for use by DEQ staff, partner agencies, environmental justice and community leaders, the regulated community, and the public.Click Here to view Data Fact Sheet
    6
    2 months ago
  • Renewable Energy Permits
    This dataset represents the geospatial location of Renewable Energy projects tracked by Virginia DEQ; data type is point.This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    2 months ago
  • VDEQ Springs WQ
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    2 months ago
  • Alternate Water Supplies - CFU Sites
    Carbon Filtration Unit (CFUs) Installed on potable water supplies that are impacted by leaking petroleum storage tanks.This dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates.  Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • NPS Nutrient Trading Banks
    This dataset is updated weekly. Note that the 'date modified' metadata is not reflective of these weekly row-level data updates.This dataset includes all non-point source nutrient banks that have been certified or have submitted an application.  The layer is point geometry type and details the location of every bank.  Each bank is designated as pending, approved, and sold out. Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • Virginia Pollutant Discharge Elimination System (VPDES) Permit Outfalls
    This dataset consists of the outfall locations for all Water VPDES Individual and General Permits.  There are nine (9) General Permits; Concrete Products; Domestic Sewage Discharge; Noncontact Cooling Water, Nonmetallic Mineral Mining; Petroleum and Hydrostatic Test; Potable Water Treatment Plant, Seafood Processing; Stormwater Industrial; and Vehicle Wash and Laundry.  There is a single VPDES Individual Permit, but these are designated as either Major or Minor permits depending on the amount of flow or if they require EPA review.This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates. These data layer shows where discharges from the permitted sites enters State Waters.  This dataset will allow the public to find discharges to particular streams or relative to where they live, work or play.  Additional information about these discharges may be found by contacting the DEQ regional office responsible for that area (https://www.deq.virginia.gov/Locations.aspx ).Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • 2022 Final WQA Monitoring Stations
    Point layer of water quality monitoring stations included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • Rivers (2022 Final WQA IR Assessment)
    Polyline layer of freshwater riverine features within Virginia included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    2 months ago
  • Estuaries (2020 Final WQA IR Assessment)
    Polygon layer of estuarine and saltwater features within Virginia's territorial limit included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    2 months ago
  • Rivers (2020 Final WQA IR Assessment)
    Polyline layer of freshwater riverine features within Virginia included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet. 
    8
    2 months ago
  • Reservoirs (2018 Final WQA IR Assessment)
    All reservoirs and lakes identified in the 2018 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.Click Here to view Data Fact Sheet
    6
    2 months ago
  • Rivers (2018 Final WQA IR Assessment)
    All rivers and streams identified in the 2018 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.Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • Estuaries (2018 Final WQA IR Assessment)
    All estuarine waters identified in the 2018 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.Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • Reservoirs (2016 Final WQA IR Assessement)
    All reservoirs and lakes 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.
    6
    2 months ago
  • Trout Lakes / Reservoirs
    This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • All Lakes / Reservoirs
    This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    2 months ago
  • All Steams / Rivers
    This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to see the Data Fact Sheet. 
    6
    2 months ago
  • Biosolids and Industrial Field Activity
    This dataset contains records of land application activities for biosolids and industrial residuals on permitted sites in Virginia.The purpose of this dataset is to make information about biosolids and industrial residual land application more accessible to the public and to support accountability, environmental review, and informed decision-making. It provides a clear record of permitted land application activities and helps citizens, regulators, and other interested parties understand the history and scope of these practices in Virginia. The dataset includes information on land application events reported by permittees through monthly submissions to the Virginia Department of Environmental Quality (DEQ). Each record represents a specific application event and includes details such as permit number, city or county, DEQ control number, application date, source or storage facility, acres applied, application method, percent solids, amount applied, units, dry tons applied, and the crop planned for nutrient uptake. The data is organized to show application activity by field, date, and source within each control number. To learn more about DEQ's Biosolids program click here.Permittees submit these application reports to DEQ no later than the 15th of each month proceeding the land application month. The submittals are reviewed and uploaded into the DEQ database. The dataset covers land application activity from 2017 to the present, based on the most recent monthly reporting submissions. For permits that are required to submit land application activity reports, data is considered complete from 2018 onward. Data from 2008 through 2017 is available upon request, and records prior to 2008 are maintained only in paper format. 
    6
    2 months ago
  • Biosolids and Industrial Approved Sources
    This dataset contains the approved list of biosolids and industrial residuals that are eligible for land application in Virginia. It was created to provide public transparency and to document the sources that have been reviewed and approved by the Virginia Department of Environmental Quality (DEQ) for land application.The dataset includes information on approved facilities and sources, including facility name, treatment type, permit information, source classification, residual generated, management options, pathogen and vector reduction methods, approval dates, and approval comments. The dataset is maintained as a current record of approved sources and their status.The purpose of this dataset is to make information about approved biosolids and industrial residual sources available to the public, permit holders, and regulators in a clear and accessible format. To learn more about DEQ's Biosolids program click here.This data set was created in 2008 and is kept current.
    6
    2 months ago
  • SEP Database
    The Supplemental Environmental Projects (SEP) Database is a web application that contains information on historic and available environmental improvement proposals that have been reviewed and approved by DEQ Enforcement. A SEP is an environmentally beneficial project that a defendant/respondent agrees to undertake in partial settlement of a civil penalty action.The SEP Database connects environmental improvement project ideas with parties seeking to offset civil penalties through meaningful environmental action. Supplemental Environmental Projects, or SEPs, redirect penalty resources toward immediate environmental benefits—creating transparency, consistency, and tangible improvements for Virginia's communities and ecosystems. 
    2
    2 months ago
  • Registered Petroleum Tank Facilities
    The Virginia DEQ Petroleum Storage Tank Program provides various customer services to the Virginia community and other interested parties graphical information for Aboveground Storage Tank (AST) and Underground Storage Tank (UST) Regulated Facilities. DEQ petroleum tank program develops regulations and coordinates the statewide effort to maintain compliance with the AST/UST requirements. The DEQ staff conducts AST/UST compliance inspections of regulated tanks in a cooperative effort with the regulated community to protect human health and the environment. The GIS layer shows AST/UST Tank Facilities registered with DEQ. Click Here to view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates. 
    6
    2 months ago
  • Registered Petroleum Tank Details
    The Virginia DEQ Petroleum Storage Tank Program provides various customer services to the Virginia community and other interested parties graphical information for Aboveground Storage Tank (AST) and Underground Storage Tank (UST) Regulated Facilities. DEQ petroleum tank program develops regulations and coordinates the statewide effort to maintain compliance with the AST/UST requirements. The DEQ staff conducts AST/UST compliance inspections of regulated tanks in a cooperative effort with the regulated community to protect human health and the environment. The GIS layer shows AST/UST Tank Facilities registered with DEQ. Click Here to view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    2 months ago
  • Region3 RCRA Points
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    3 months ago
  • Virginia Springs Database - 2023
    In-depth dataset factsheet can be found here. 
    1
    3 months ago
  • EPA Ecoregions in Virginia
    Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources.
    6
    3 months ago
  • DEQ Regional Boundaries
    Polygon layer depicting Virginia DEQ's regional boundaries throughout the state.
    6
    3 months ago
  • Virginia Soil and Water Conservation Districts
    Polygon layer showing the boundaries of Virginia Soil and Water Conservation Districts within the Commonwealth of Virginia.
    6
    3 months ago
  • Low Income Communities
    This dataset represents the geospatial extent as polygons and the corresponding attribution for census block groups that meet the definition of low-income communities according to the Virginia 2020 Environmental Justice Act: “Low-income community” definition: “’Low-income community’ means any census block group in which 30 percent or more of the population is composed of people with low income.” The referenced “low income” definition is also provided below: “Low income” definition: “’Low income’ means having an annual household income equal to or less than the greater of (i) an amount equal to 80 percent of the median income of the area in which the household is located, as reported by the Department of Housing and Urban Development, and (ii) 200 percent of the Federal Poverty Level.”Click Here to view Data Fact Sheet. 
    6
    3 months ago
  • Chesapeake Bay Watershed and Basins
    Polygon layer representing the spatial extent of the Chesapeake Bay Watershed with major basins delineated.
    6
    3 months ago
  • VDEQ Spring SITES
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    3 months ago
  • Active Air Sites
    Location of active air aites/facilities throughout Virginia.This layer represents all active VA DEQ permitted air facilities within Virginia. The Active Air Sites (daily) data layer is governed and managed by the Air and Renewable Energy Division. GIS coordinates are determined by 911 addresses or other location information that is confirmed by DEQ staff as the Air Sites are added and updated. Pertinent information such as registration number, site name, address fields, status, and other information about the Air Site is included with the data layer. The layer can also be related to the emissions table (current year) to view total reported emissions by pollutant type per air facility.Click Here to view Data Fact SheetsThis dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates.
    6
    3 months ago
  • VRP Site Addresses
    Location information for Voluntary Remediation Program (VRP) sites.Click Hereto view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    3 months ago
  • Implementation Watersheds (IP)
    Polygon layer representing all watershed Boundaries for the Implementation Watersheds, including Approved, In Progress and Completed Implementation Areas.Click Here to see the Data Facts Sheet.
    8
    3 months ago
  • Biosolids Site Addresses
    Locations of citizen properties with an extended setback from their property line and/or home.
    6
    3 months ago
  • Median Station Nutrient Results 2010 to 2020
    This report analyzed all DEQ stations with Total Phosphorus (TP) and Total Nitrogen (TN) samples taken from 2010 to 2020. Median values and number of samples the statistic was based on (n) are presented in the table below.Median results are categorized accordingly:Median TN < 1 mg/L is considered Low TNMedian TN >= 1 mg/L & Median TN < 2 mg/L is considered Medium TNMedian TN >= 2 mg/L is considered High TNMedian TP < 0.05 mg/L is considered Low TPMedian TP >= 0.05 mg/L & Median TP < 0.1 mg/L is considered Medium TPMedian TP >= 0.1 mg/L is considered High TP 
    6
    3 months ago
  • Virginia Pollutant Discharge Elimination System (VPDES) Permit Outfalls
    This dataset consists of the outfall locations for all Water VPDES Individual and General Permits.  There are nine (9) General Permits; Concrete Products; Domestic Sewage Discharge; Noncontact Cooling Water, Nonmetallic Mineral Mining; Petroleum and Hydrostatic Test; Potable Water Treatment Plant, Seafood Processing; Stormwater Industrial; and Vehicle Wash and Laundry.  There is a single VPDES Individual Permit, but these are designated as either Major or Minor permits depending on the amount of flow or if they require EPA review.This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates. These data layer shows where discharges from the permitted sites enters State Waters.  This dataset will allow the public to find discharges to particular streams or relative to where they live, work or play.  Additional information about these discharges may be found by contacting the DEQ regional office responsible for that area (https://www.deq.virginia.gov/Locations.aspx ).Click Here to view Data Fact Sheet. 
    6
    3 months ago
  • Virginia Water Protection (VWP) General Permits
    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.Click Here to view Data Fact Sheet. 
    6
    3 months ago
  • Virginia Water Protection (VWP) Individual Permits (IP)
    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 Individual Permits (IP) issued across the state. The Individual Permit's 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.Click Here to view Data Fact Sheet. 
    6
    3 months ago
  • EPA RCRA Large Quantity Generators (LQG)
    The Resource Conservation and Recovery Act Information System (RCRAInfo) is EPA’s comprehensive information system in support of the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. It tracks many types of information about generators, transporters, treaters, storers, and disposers of hazardous waste. Full Metadata
    6
    4 months ago
  • EPA RCRA Active Generators (All)
    The Resource Conservation and Recovery Act Information System (RCRAInfo) is EPA’s comprehensive information system in support of the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. It tracks many types of information about generators, transporters, treaters, storers, and disposers of hazardous waste. Full Metadata
    6
    4 months ago
  • Region3 RCRA Polygons
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    4 months ago
  • Region3 RCRA Lines
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    4 months ago
  • EPA Region 3 RCRA Corrective Action (CA)
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    2
    4 months ago
  • TURBIDITY
    6
    4 months ago
  • PHOSPHORUS
    6
    4 months ago
  • EPA Ecoregions in Virginia
    Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources.
    6
    4 months ago
  • SOLIDS VOLATILE
    6
    4 months ago
  • DEQ Regional Boundaries
    Polygon layer depicting Virginia DEQ's regional boundaries throughout the state.
    6
    4 months ago
  • Communities of Color - Over Statewide Average Open Data
    This data supports the identification of Virginia’s environmental justice communities with additional layers available on the Virginia EJScreen+ Experience Builder for community outreach purposes such as public meetings. It is intended for use by DEQ staff, partner agencies, environmental justice and community leaders, the regulated community, and the public.Click Here to view Data Fact Sheet
    6
    4 months ago
  • Coastal Avian Protection Zones (CAPZ)
    The CAPZ (Coastal Avian Protection Zones) layer was created to allow small renewable energy project applicants to identify areas that are critically important to coastal avian resources. Utilized in concert with guidance documents for solar and wind projects, CAPZ can help guide pre-construction field surveys and aid in the development of mitigation plans designed to offset significant adverse impacts to wildlife in these sensitive areas.: https://gaia.vcu.edu/GemsMap/
    6
    4 months ago
  • SURFACE WATER TEMPERATURE
    6
    4 months ago
  • DO SATURATION
    6
    4 months ago
  • FECAL COLIFORM
    6
    4 months ago
  • Estuarine Waters / Estuaries
    This is a reference dataset for the Virginia Water Quality Standards for the tidal waters, represented as polygons, within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • pH
    6
    4 months ago
  • Virginia Soil and Water Conservation Districts
    Polygon layer showing the boundaries of Virginia Soil and Water Conservation Districts within the Commonwealth of Virginia.
    6
    4 months ago
  • County Fiscal Stress 2022
    Polygon layer representing the Fiscal Stress of Virginia's Cities and Counties. Data from VA Dept of Housing and Community Development and Virginia Admin Boundaries Dataset (VGIN).
    6
    4 months ago
  • 2018 Final WQA Monitoring Stations
    Sites within Virginia where DEQ or other data providers have collected water column, sediment, fish tissue or benthic macroinvertebrate samples within the given assessment data window (2018). Attributes assigned to each station are summarized based on samples collected per station ID. QA/QC checks are performed on the database to verify attribute and spatial accuracy, 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 data provided. Stations not monitored within the given data window may be included for clarification of assessment unit ID status but have no data within the parameter columns. See the Comments fields for those instances. Please see dateset Fact Sheet (on DEQ's Environmental Data Hub: https://geohub-vadeq.hub.arcgis.com/pages/water-datasets ) for metadata including contact information, process steps, attribute descriptions, and distribution information.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • SPECIFIC CONDUCTANCE
    6
    4 months ago
  • NITROGEN
    6
    4 months ago
  • Low Income Communities
    This dataset represents the geospatial extent as polygons and the corresponding attribution for census block groups that meet the definition of low-income communities according to the Virginia 2020 Environmental Justice Act: “Low-income community” definition: “’Low-income community’ means any census block group in which 30 percent or more of the population is composed of people with low income.” The referenced “low income” definition is also provided below: “Low income” definition: “’Low income’ means having an annual household income equal to or less than the greater of (i) an amount equal to 80 percent of the median income of the area in which the household is located, as reported by the Department of Housing and Urban Development, and (ii) 200 percent of the Federal Poverty Level.”Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • Renewable Energy Development Atlas
    The Virginia Renewable Energy Development Atlas (REDA) is planning-level spatial data locating the Commonwealth's renewable energy permit boundaries. This dataset contains polygons for renewable energy sites, excluding section 130 de minimis permits, authorized by DEQ or a Certificate of Public Convenience and Necessity (CPCN) issued by the Virginia State Corporation Commission (SCC). REDA includes all actively permitted renewable energy permits, including facilities that have not been constructed and facilities that have not commenced commercial operation. Dataset updated intermittently on an as needed basis. Data contained within the Renewable Energy Development Atlas is not reflective of existing or future land disturbance. An up-to-date review of existing land disturbance as a result of utility-scale solar development across the Commonwealth can be viewed here.DEQ Data Fact Sheet
    6
    4 months ago
  • DEQ Office Locations
    A point layer representing locations of Virginia DEQ regional and central office locations.
    6
    4 months ago
  • Chesapeake Bay Watershed and Basins
    Polygon layer representing the spatial extent of the Chesapeake Bay Watershed with major basins delineated.
    6
    4 months ago
  • Virginia Physiographic Regions
    This is a polygon coverage of Physiographic Divisions in the conterminous United States cropped to the state boundary of Virginia. It was automated from Fenneman's 1:7,000,000-scale map, "Physical Divisions of the United States," which is based on eight major 1946 divisions, 25 provinces, and 86 sections representing distinctive areas having common topography, rock types and structure, and geologic and geomorphic history.
    6
    4 months ago
  • Virginia County Fiscal Stress
    Polygon layer representing the Fiscal Stress of Virginia's Cities and Counties. Data from VA Dept of Housing and Community Development and Virginia Admin Boundaries Dataset (VGIN). For more information please see the current report: https://www.dhcd.virginia.gov/fiscal-stress
    6
    4 months ago
  • SECCHI
    6
    4 months ago
  • VDEQ Springs WQ
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    4 months ago
  • VDEQ Springs FIELD MEASUREMENTS
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    4 months ago
  • VDEQ Spring SITES
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    4 months ago
  • Virginia Springs/Groundwater Layers - 2023
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
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  • CHLOROPHYLL A
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  • SOLIDS SUSPENDED
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  • SOLIDS FIXED
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  • US Census Urbanized Areas (2010)
    selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. After each decennial census, the Census Bureau delineates urban areas that represent densely developed territory, encompassing residential, commercial, and other nonresidential urban land uses. In general, this territory consists of areas of high population density and urban land use resulting in a representation of the "urban footprint." There are two types of urban areas: urbanized areas (UAs) that contain 50,000 or more people and urban clusters (UCs) that contain at least 2,500 people, but fewer than 50,000 people (except in the U.S. Virgin Islands and Guam which each contain urban clusters with populations greater than 50,000). Each urban area is identified by a 5-character numeric census code that may contain leading zeroes. Access Constraints: None, Use Constraints:The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. https://www.census.gov/programs-surveys/geography/guidance/geo-areas/urban-rural/2010-urban-rural.html
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  • E.COLI
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  • ENTEROCOCCI
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  • Air Sites Emissions (Current Reporting Year) Totals
    This dataset is a non‑spatial table that reports the total annual emissions submitted by permitted air facilities across Virginia for the current reporting year. Each record represents a facility’s aggregated emissions, organized by pollutant, as reported through regulatory air programs.The table is designed to be used alongside the Active Air Sites GIS layer, allowing users to join facility‑level emissions totals with corresponding spatial site locations. When related to the Active Air Sites layer, users can visualize and analyze total emissions by pollutant per facility, supporting air quality assessments, regulatory reviews, and public transparency.The dataset is publicly accessible and updated annually, reflecting the most recent reporting cycle for Virginia’s permitted air facilities.
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    4 months ago
  • Alternate Water Supplies - CFU Sites
    Carbon Filtration Unit (CFUs) Installed on potable water supplies that are impacted by leaking petroleum storage tanks.This dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates.  Click Here to view Data Fact Sheet. 
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    4 months ago
  • Petroleum Release Sites
    The Virginia DEQ Petroleum Storage Tank Program provides various customer services to the Virginia community and other interested parties graphical information for petroleum release sites. Leaks and/or spills of petroleum and/or regulated substances into the environment are reported to DEQ. After a release is reported, DEQ staff work with the tank owner/operator to characterize and clean up the release. The GIS layer shows confirmed petroleum releases reported to DEQ.This dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates. Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • Solid Waste Permits
    The Virginia DEQ Solid Waste Program provides various customer services to the Virginia community and other interested parties graphical information for Solid Waste Facilities. DEQ's solid waste program encourages the reuse and recycling of solid waste and regulates the storage, treatment and disposal of solid waste. The regulations provide standards which are designed to protect human health and the environment from these solid waste management activities. The GIS layer shows Solid Waste Facilities permitted with DEQ.Click Here for Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
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  • VRP Site Addresses
    Location information for Voluntary Remediation Program (VRP) sites.Click Hereto view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
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  • PREP Reports
    DEQ Pollution Response Program (PREP), provides for responses to air, water, and waste pollution incidents in order to protect human health and the environment. This layer provides a detailed description of multimedia pollution inspection reports filed through PREP beginning May 29, 2019. These details include, but are not limited to, the location of a pollution incident, the date of an incident, the description of an incident, and the current status of an incident.Click Here to view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
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  • VEEP Facilities
    VEEP is a voluntary program with two distinct tracks. Facilities in the VEEP EMS Track are recognized by DEQ for going beyond regulatory compliance by establishing and maintaining an Environmental Management System (EMS). The other VEEP Track is called Sustainability Partners (SP). The VEEP SP Track recognizes facilities for their efforts to move toward environmental sustainability.”<o:p></o:p>Click Here to view Data Fact Sheet. 
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  • Chesapeake Bay TMDLs
    Polygon layer representing approved TMDL Watershed Boundaries for the Chesapeake Bay TMDL.
    6
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  • Biosolids Areas
    Boundary of permitted sites that includes one or more land application fields, and may include setback areas or other areas not authorized for land application of biosolids and/or other residuals.This dataset is updated on a nightly basis. Note that the ‘date modified’ metadata is not reflective of these nightly row level data updates.
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    4 months ago
  • Biosolids Area Info Table
    Non-spatial related table that can be joined to the Biosolids Areas spatial layer on the DEQ Control Number field to increase attribution and reference data. This is a many to one relationship listing permit numbers and fields permitted for land application Since 2008
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  • Biosolids Site Addresses
    Locations of citizen properties with an extended setback from their property line and/or home.
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  • NPS Nutrient Trading Banks
    This dataset is updated weekly. Note that the 'date modified' metadata is not reflective of these weekly row-level data updates.This dataset includes all non-point source nutrient banks that have been certified or have submitted an application.  The layer is point geometry type and details the location of every bank.  Each bank is designated as pending, approved, and sold out. Click Here to view Data Fact Sheet. 
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    4 months ago
  • Median Station Nutrient Results 2010 to 2020
    This report analyzed all DEQ stations with Total Phosphorus (TP) and Total Nitrogen (TN) samples taken from 2010 to 2020. Median values and number of samples the statistic was based on (n) are presented in the table below.Median results are categorized accordingly:Median TN < 1 mg/L is considered Low TNMedian TN >= 1 mg/L & Median TN < 2 mg/L is considered Medium TNMedian TN >= 2 mg/L is considered High TNMedian TP < 0.05 mg/L is considered Low TPMedian TP >= 0.05 mg/L & Median TP < 0.1 mg/L is considered Medium TPMedian TP >= 0.1 mg/L is considered High TP 
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  • Stormwater Permits Daily
    The Stormwater Construction General Permit layer is a spatial representation of the locations for which a General Virginia Pollutant Discharge Elimination System (VPDES) Permit for Discharges of Stormwater from Construction Activities (Construction General Permit or CGP) have been issued in the Commonwealth of Virginia. The dataset includes attribution to indicate the status of the CGP, issue date, total area of development, estimated area to be disturbed, and estimated project start and end dates. The attribution also contains termination information for CGPs that have been terminated.  Click Here to view Data Fact Sheet. This dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates.
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  • Virginia Water Protection (VWP) Individual Permits (IP)
    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 Individual Permits (IP) issued across the state. The Individual Permit's 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.Click Here to view Data Fact Sheet. 
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  • Virginia Water Protection (VWP) Multiple Project Mitigation Site (MPMS) Boundaries
    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 Multiple Project Mitigation Site (MPMS) boundaries which certain VWP Permits require as part of their permit's compensation plan. The VWP permit's number, name, and regional office are among several attributes in this layer. The MPMS boundaries are usually offsite from the VWP project location. 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.Click Here to view Data Fact Sheet. 
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  • Virginia Water Protection (VWP) Permittee Responsible Mitigation Area (PRMA) Boundaries
    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 Permittee Responsible Mitigation Area (PRMA) boundaries which certain VWP Permits require as part of their permit's compensation plan. The VWP permit's number, name, and regional office are among several attributes in this layer. The PRMA boundaries are drawn to represent the project's mitigation area boundary which is usually onsite of the VWP project. 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.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • Virginia Water Protection (VWP) Project Boundaries
    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.Click Here to view Data Fact Sheet. 
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  • 2022 Final WQA Monitoring Stations
    Point layer of water quality monitoring stations included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
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  • Reservoirs (2018 Final WQA IR Assessment)
    All reservoirs and lakes identified in the 2018 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.Click Here to view Data Fact Sheet
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    4 months ago
  • Rivers (2018 Final WQA IR Assessment)
    All rivers and streams identified in the 2018 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.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • Estuaries (2018 Final WQA IR Assessment)
    All estuarine waters identified in the 2018 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.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • 2016 Final WQA Monitoring Stations
    Sites within Virginia where DEQ or other data providers have collected water column, sediment, fish tissue or benthic macroinvertebrate samples within the given assessment data window (2016). Attributes assigned to each station are summarized based on samples collected per station ID. QA/QC checks are performed on the database to verify attribute and spatial accuracy, 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 data provided. Stations not monitored within the given data window may be included for clarification of assessment unit ID status but have no data within the parameter columns. See the Comments fields for those instances.  Metadata is provided in the data Fact Sheet which contains contact information, process steps, attribute descriptions, and distribution information.
    6
    4 months ago
  • Estuaries (2016 Final WQA IR Assessment)
    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.
    6
    4 months ago
  • Reservoirs (2016 Final WQA IR Assessement)
    All reservoirs and lakes 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.
    6
    4 months ago
  • Rivers (2016 Final WQA IR Assessment)
    All rivers and streams 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.
    6
    4 months ago
  • WQM Trends 2024 - Stations
    This Virginia DEQ (VADEQ) data layer displays the results of the most recent long term trend analysis of key water quality variables. Over 400 trend stations are investigated for 20 years trends. These trends cover the 20 year period of 2003 to 2022.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • Water Quality Monitoring Plan Stations (Current)
    Water quality monitoring stations and parameters to be sampled during the calendar year.View Data Fact Sheet
    6
    4 months ago
  • Tidal Flow Paths WQS
    This is a reference dataset for the Virginia Water Quality Standards for the tidal flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.
    6
    4 months ago
  • Trout Lakes / Reservoirs
    This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • All Lakes / Reservoirs
    This is a reference dataset for the Virginia Water Quality Standards for all lakes and reservoirs within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    4 months ago
  • All Steams / Rivers
    This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to see the Data Fact Sheet. 
    6
    4 months ago
  • EPA RCRA Large Quantity Generators (LQG)
    The Resource Conservation and Recovery Act Information System (RCRAInfo) is EPA’s comprehensive information system in support of the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. It tracks many types of information about generators, transporters, treaters, storers, and disposers of hazardous waste. Full Metadata
    6
    5 months ago
  • ic ec cam790 ca100 area nam 2024-11-25T08 31 24.605000884-05 00.csv
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    5 months ago
  • Region3 RCRA Polygons
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    5 months ago
  • Region3 RCRA Lines
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    5 months ago
  • Region3 RCRA Points
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    6
    5 months ago
  • EPA Region 3 RCRA Corrective Action (CA)
    This data includes EPA Region 3 RCRA Corrective Action facility point locations as well as features (lines and polygons) associated with institutional and engineering controls.
    2
    5 months ago
  • Virginia Springs Database - 2023
    In-depth dataset factsheet can be found here. 
    1
    5 months ago
  • VDEQ Springs FIELD MEASUREMENTS
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    11
    5 months ago
  • Virginia Springs/Groundwater Layers - 2023
    VDEQ Spring SITESThe VDEQ Spring SITES database contains data describing the geographic locations and site attributes of natural springs throughout the commonwealth. This data coverage continues to evolve and contains only spring locations known to exist with a reasonable degree of certainty on the date of publication. The dataset does not replace site specific inventorying or receptor surveys but can be used as a starting point. VDEQ's initial geospatial dataset of approximately 325 springs was formed in 2008 by digitizing historical spring information sheets created by State Water Control Board geologists in the 1970s through early 1990s. Additional data has been consolidated from the EPA STORET database, the U.S. Geological Survey's Ground Water Site Inventory (GWSI) and Geographic Names Inventory System (GNIS), the Virginia Department of Health SDWIS database, the Virginia DEQ Virginia Water Use Data Set (VWUDS), the Commonwealth of Virginia Division of Water Resources and Power Bulletin No. 1: "Springs of Virginia" by Collins et al., 1930 as well as several VDWR&P Surface Water Supply bulletins from the 1940's - 1950's. A 1992 Virginia Department of Game and Inland Fisheries / Virginia Tech sponsored study by Helfrich et al. titled "Evaluation of the Natural Springs of Virginia: Fisheries Management Implications", a 2004 Rockbridge County groundwater resources report written by Frits van der Leeden, and several smaller datasets from consultants and citizens were evaluated and added to the database when confidence in locational accuracy was high or could be verified with aerial or LIDAR imagery. Significant contributions have been made throughout the years by VDEQ Groundwater Characterization staff site visits as well as other geologists working in the region including: Matt Heller at Virginia Division of Geology and Mineral Resources (VDMME), Wil Orndorff at the Virginia Department of Conservation and Recreation Karst Program (VDCR), and David Nelms and Dan Doctor of the U.S. Geological Survey (USGS). Substantial effort has been made to improve locational accuracy and remove duplication present between data sources. Hundreds of spring locations that were originally obtained using topographic maps or unknown methods were updated to sub-meter locational accuracy using post-processed differential GPS (PPGPS) and through the use of several generations of aerial imagery (2002-2017) obtained from Virginia's Geographic Information Network (VGIN) and 1-meter LIDAR, where available. Scores of new spring locations were also obtained by systematic quadrangle by quadrangle analysis in areas of the Shenandoah Valley where 1-meter LIDAR datasets where obtained from the U.S. Geological Survey. Future improvements to the dataset will result when statewide 1-meter LIDAR datasets becomes available and through continued field work by DEQ staff and other contributors working in the region. Please do not hesitate to contact the author to correct mistakes or to contribute to the database.VDEQ_Springs_FIELD_MEASUREMENTSThe VDEQ Spring FIELD MEASUREMENTS database contains data describing field derived physio-chemical properties of spring discharges measured throughout the Commonwealth of Virginia. Field visits compiled in this dataset were performed from 1928 to 2019 by geologists with the State Water Control Board, the Virginia Division of Water and Power, the Virginia Department of Environmental Quality, and the U.S. Geological Survey with contributions from other sources as noted. Values of -9999 indicate that measurements were not performed for the referenced parameter. Please do not hesitate to contact the author to add data to the database or correct errors.VDEQ_Springs_WQThe VDEQ_Spring_WQ database is a geodatabase containing groundwater sample information collected from springs throughout Virginia. Sample specific information include: location and site information, measured field parameters, and lab verified quantifications of major ionic concentrations, trace element concentrations, nutrient concentrations, and radiological data. The VDEQ_Spring_WQ database is a subset of the VDEQ GWCHEM database which is a flat-file geodatabase containing groundwater sample information from groundwater wells and springs throughout Virginia. Sample information has been correlated via DEQ Well # and projected using coordinates in VDEQ_Spring_SITES database. The GWCHEM database is comprised of historic groundwater sample data originally archived in the United States Geological Survey (USGS) National Water Information System (NWIS) and the Environmental Protection Agency (EPA) Storage and Retrieval (STORET) data warehouse. Archived STORET data originated as groundwater sample data collected and uploaded by Virginia State Water Control Board Personnel. While groundwater sample data in the STORET data warehouse are static, new groundwater sample data are periodically uploaded to NWIS and spring laboratory WQ data reflect NWIS downloaded on 9/30/2019. Recent groundwater sample data collected by Virginia Department of Environmental Quality (DEQ) personnel as part of the Ambient Groundwater Sampling Program are entered into the database as lab results are made available by the Division of Consolidated Laboratory Services (DCLS). When possible, charge balances were calculated for samples with reported values for major ions including (at a minimum) calcium, magnesium, potassium, sodium, bicarbonate, chloride, and sulfate. Reported values for Nitrate as N, carbonate, and fluoride were included in the charge balance calculation when available. Field determined values for bicarbonate and carbonate were used in the charge balance calculation when available. For much of the legacy DEQ groundwater sample data, bicarbonate values were derived from lab reported values of alkalinity (as mg/CaCO3) under the assumption that there was no contribution by carbonate to the reported alkalinity value. Charge balance values are reported in the "Charge Balance" column of the GWCHEM geodatabase. The closer the charge balance value is to unity (1), the lower the assumed charge balance error.In order to preserve the numerical capabilities of the database, non- numeric lab qualifiers were given the following numeric identifiers:- (minus sign) = less than the concentration specified to the right of the sign-11110 = estimated-22220 = presence verified but not quantified-33330 = radchem non-detect, below sslc-4440 = analyzed for but not detected-55550 = greater than the concentration to the right of the zero-66660 = sample held beyond normal holding time-77770 = quality control failure. Data not valid.-88880 = sample held beyond normal holding time. Sample analyzed for but not detected. Value stored is limit of detection for proces in use.-11120 = Value reported is less than the criteria of detection.-9999 = no data (parameter not quantified)A more in depth descprition and hydrogeologic analysis of the database can be found hereAn in Depth data fact sheet can be found here
    2
    5 months ago
  • Petroleum Release Sites
    The Virginia DEQ Petroleum Storage Tank Program provides various customer services to the Virginia community and other interested parties graphical information for petroleum release sites. Leaks and/or spills of petroleum and/or regulated substances into the environment are reported to DEQ. After a release is reported, DEQ staff work with the tank owner/operator to characterize and clean up the release. The GIS layer shows confirmed petroleum releases reported to DEQ.This dataset is updated on a daily basis. Note that the 'date modified' metadata is not reflective of these daily row level data updates. Click Here to view Data Fact Sheet. 
    6
    5 months ago
  • 2018 Final WQA Monitoring Stations
    Sites within Virginia where DEQ or other data providers have collected water column, sediment, fish tissue or benthic macroinvertebrate samples within the given assessment data window (2018). Attributes assigned to each station are summarized based on samples collected per station ID. QA/QC checks are performed on the database to verify attribute and spatial accuracy, 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 data provided. Stations not monitored within the given data window may be included for clarification of assessment unit ID status but have no data within the parameter columns. See the Comments fields for those instances. Please see dateset Fact Sheet (on DEQ's Environmental Data Hub: https://geohub-vadeq.hub.arcgis.com/pages/water-datasets ) for metadata including contact information, process steps, attribute descriptions, and distribution information.Click Here to view Data Fact Sheet. 
    6
    5 months ago
  • Air Sites Emissions (Current Reporting Year) Totals
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    6
    5 months ago
  • Biosolids Site Address Info Table
    Non-spatial related table that can be joined to the Biosolids Site Addresses spatial layer (above) on the Buffer_ID field to increase attribution and reference data
    6
    5 months ago
  • Coastal Avian Protection Zones (CAPZ)
    The CAPZ (Coastal Avian Protection Zones) layer was created to allow small renewable energy project applicants to identify areas that are critically important to coastal avian resources. Utilized in concert with guidance documents for solar and wind projects, CAPZ can help guide pre-construction field surveys and aid in the development of mitigation plans designed to offset significant adverse impacts to wildlife in these sensitive areas.: https://gaia.vcu.edu/GemsMap/
    6
    5 months ago
  • County Fiscal Stress 2022
    Polygon layer representing the Fiscal Stress of Virginia's Cities and Counties. Data from VA Dept of Housing and Community Development and Virginia Admin Boundaries Dataset (VGIN).
    6
    5 months ago
  • DEQ Office Locations
    A point layer representing locations of Virginia DEQ regional and central office locations.
    6
    5 months ago
  • Estuaries (2016 Final WQA IR Assessment)
    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.
    6
    5 months ago
  • Estuaries (2022 Final WQA IR Assessment)
    Polygon layer of estuarine and saltwater features within Virginia's territorial limit included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    5 months ago
  • Estuarine Waters / Estuaries
    This is a reference dataset for the Virginia Water Quality Standards for the tidal waters, represented as polygons, within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to view Data Fact Sheet. 
    6
    5 months ago
  • Registered Petroleum Tank Facilities
    The Virginia DEQ Petroleum Storage Tank Program provides various customer services to the Virginia community and other interested parties graphical information for Aboveground Storage Tank (AST) and Underground Storage Tank (UST) Regulated Facilities. DEQ petroleum tank program develops regulations and coordinates the statewide effort to maintain compliance with the AST/UST requirements. The DEQ staff conducts AST/UST compliance inspections of regulated tanks in a cooperative effort with the regulated community to protect human health and the environment. The GIS layer shows AST/UST Tank Facilities registered with DEQ.Click Here to view Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    5 months ago
  • Reservoirs (2020 Final WQA IR Assessment)
    Polygon layer of lakes and reservoirs within Virginia included in the 2020 305(b)/303(d) Integrated ReportClick Here to view Data Fact Sheet.
    8
    5 months ago
  • Reservoirs (2022 Final WQA IR Assessment)
    Polygon layer of lakes and reservoirs within Virginia included in the final 2022 305(b)/303(d) Integrated Report.Click Here to view Data Fact Sheet. 
    8
    5 months ago
  • Trout Streams / Rivers
    This is a reference dataset for the Virginia Water Quality Standards for all free-flowing, freshwater streams, rivers and flowpaths designated as stockable or natural trout waters within the Virginia state boundary. See section 9VAC-25-260 of the Virginia Administrative Code for specific standards descriptions.Click Here to see Data Fact Sheet. 
    6
    5 months ago
  • US Census Urbanized Areas (2010)
    selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. After each decennial census, the Census Bureau delineates urban areas that represent densely developed territory, encompassing residential, commercial, and other nonresidential urban land uses. In general, this territory consists of areas of high population density and urban land use resulting in a representation of the "urban footprint." There are two types of urban areas: urbanized areas (UAs) that contain 50,000 or more people and urban clusters (UCs) that contain at least 2,500 people, but fewer than 50,000 people (except in the U.S. Virgin Islands and Guam which each contain urban clusters with populations greater than 50,000). Each urban area is identified by a 5-character numeric census code that may contain leading zeroes. Access Constraints: None, Use Constraints:The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. https://www.census.gov/programs-surveys/geography/guidance/geo-areas/urban-rural/2010-urban-rural.html
    6
    5 months ago
  • Virginia Water Protection (VWP) Multiple Project Mitigation Site (MPMS) Boundaries
    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 Multiple Project Mitigation Site (MPMS) boundaries which certain VWP Permits require as part of their permit's compensation plan. The VWP permit's number, name, and regional office are among several attributes in this layer. The MPMS boundaries are usually offsite from the VWP project location. 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.Click Here to view Data Fact Sheet. 
    6
    5 months ago
  • Virginia Water Protection (VWP) Permittee Responsible Mitigation Area (PRMA) Boundaries
    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 Permittee Responsible Mitigation Area (PRMA) boundaries which certain VWP Permits require as part of their permit's compensation plan. The VWP permit's number, name, and regional office are among several attributes in this layer. The PRMA boundaries are drawn to represent the project's mitigation area boundary which is usually onsite of the VWP project. 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.Click Here to view Data Fact Sheet. 
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    5 months ago
  • VWP SSWD
    The Virginia Water Protection Program (VWP) regulates activities in state surface waters. "State waters" means all water, on the surface and under the ground, wholly or partially within or bordering the Commonwealth or within its jurisdiction. "Surface water" means all state waters that are not groundwater, such as wetlands, streams, and open water.Work impacting state surface waters may require a VWP permit in accordance with VWP program regulations and State Water Control Law. A complete application for a VWP permit requires a State Surface Waters Determination (SSWD) that maps the location of state surface waters within a project site as approved by DEQ the SSWD process. This layer represents the locations of active VWP State Surface Waters Determinations (SSWDs) issued across the state.Data Fact Sheet
    6
    5 months ago
  • Solid Waste Permits
    The Virginia DEQ Solid Waste Program provides various customer services to the Virginia community and other interested parties graphical information for Solid Waste Facilities. DEQ's solid waste program encourages the reuse and recycling of solid waste and regulates the storage, treatment and disposal of solid waste. The regulations provide standards which are designed to protect human health and the environment from these solid waste management activities. The GIS layer shows Solid Waste Facilities permitted with DEQ.Click Here for Data Fact Sheet. This dataset is updated daily. Note that the 'date modified' metadata is not reflective of these daily row-level data updates.
    6
    5 months ago
  • Water Quality Monitoring Plan Stations (Current)
    Water quality monitoring stations and parameters to be sampled during the calendar year.View Data Fact Sheet
    6
    5 months ago
  • Virginia Major River Basins
    Polygon feature class outlining the major river basin watershed areas within Virginia.
    6
    3 years ago
  • Non-NPL Federal Facilities
    Point layer displaying locations of Non-NPL (National Priority List) Federal Facilities (with the exception of NASA Langley which is NPL, but not currently tracked individually in EPA's NPL Superfund list).
    6
    3 years ago
  • 6th Order NWBD HUC 12 Watersheds
    This data is the latest (Version 6) national hydrologic unit (HU) boundaries at levels 1-6 for Virginia developed and maintained by the Virginia Department of Conservation and Recreation. They have been created in compliance with the most recent published federal standards for delineation of hydrologic units and contain national WBD HU model changes made since that time up to the publication date. The Virginia NWBD schemas include variations from the national WBD schemas. This dataset covers the whole state and is seamless with the WBD products of surrounding states at the time of publication and was developed as part of a seamless hydrologic unit product for the nation at the sixth level to be used for more detailed watershed planning work in the state. This becomes the official statewide sixth level hydrologic unit delineation for Virginia.
    6
    3 years ago
  • Virginia HUC 10 Watershed Boundaries
    Polygon layer representing HUC 10 classification watersheds in Virginia.
    6
    3 years ago
  • Prep Report Lookup App
    The PReP Incident Lookup Tool can be used to view reported pollution incidents throughout the Commonwealth of Virginia, as well as obtain additional information for each incident report.
    2
    3 years ago
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