Section 7: GIS Resources by State in the Greater Atlantic Region
A compilation of GIS maps showing resources by state.
When describing the baseline conditions of an action area in a consultation, it is important to use site-specific data wherever possible. In addition to the resources found on our GIS website, the following table is a compilation of resources that are free and available to the general public. General categories of the layers are listed below; the variety of specific GIS layers and their level of detail differ by state. Please visit the websites or contact the referenced agencies for the most up-to-date and detailed information. These agencies are responsible for the accuracy and quality of the data they provide. When referencing information from these maps during a consultation, please include an appropriate citation.
Categories of available data may include, but are not limited to:
Physical Structures: presence of dams, shoreline structures, and/or permitted or proposed aquaculture sites
Biological Features: shellfish beds, SAV, and/or wetland/marshes
Physical Features: benthic habitat, sediment, dissolved oxygen, and/or salinity/head of tide
Discharge: storm water discharge, general permit holders, Total Maximum Daily Loads (TMDL), and/or Combined Sewer Overflows (CSO)
| State | Agency Providing Data | Categories of Layers Available |
|---|---|---|
| Maine | Maine Office of GIS | Biological Features |
| New Hampshire | New Hampshire Statewide Geographic Information System | Physical Structures Biological Features |
| Massachusetts | Massachusetts Office of Geographic Information | Biological Features Discharge |
| Rhode Island | Rhode Island Department of Environmental Management | Physical Structures Biological Features Discharge |
| Connecticut | Connecticut Department of Energy and Environmental Protection | Physical Structures Biological Features Physical Features |
| New York | New York State Department of Environmental Conservation | Physical Structures Biological Features Discharge |
| New Jersey | State of New Jersey Department of Environmental Protection | Biological Features Discharge |
| Pennsylvania | Pennsylvania Spatial Data Access | Physical Structures Biological Features Discharge |
| Delaware | State of Delaware | Biological Features Physical Structures |
| Maryland | State of Maryland Geographic Information Office | Physical Structures Biological Features Physical Features Discharge |
| Chesapeake Bay | Chesapeake Bay Program | Biological Features |
| Washington, D.C. | District of Columbia Open Data | Biological Features |
| Virginia | Virginia Institute of Marine Science at the College of William and Mary | Biological Features Physical Features Discharge |