EPA Region 2 GIS Deliverables Guidance | Geospatial Resources at EPA | US EPA

This document is intended to provide specific requirements and file delivery formats for all GIS materials developed in support of EPA Region 2 projects. These work products include GIS and imagery files that are created for EPA, including but not limited to products created under grants, interagency agreements and contracts. All final version spatially enabled files acquired or developed to support mapping and/or spatial analysis through an EPA funded project are considered property of the EPA and are required to be submitted to EPA. This includes but is not limited to all GIS, CAD, and image formatted data. Only final versions of each layer are required for delivery to EPA, and must be in an approved format as specified in this document. In addition, all electronic geospatial data, whether vector or raster, must have spatial reference information and be projection defined (have its coordinate system identified and embedded in or associated with the data file), and in the case of CAD data must NOT be in page space or a custom site-specific projection. All CAD data should be in known real world coordinate space, ideally in geographic/decimal degrees/NAD83. Should tabular data be appropriate to connect location information with attribute information, then documentation specifying the primary and foreign keys is required. Should coordinate information be provided in tabular format it should contain at minimum the following fields: ID - a unique identifier given to each feature Latitude - the Y coordinate in decimal degrees Longitude - the X coordinate in decimal degrees Horizontal Datum - the datum of the coordinates. Additionally all static maps should be in an electronic Adobe PDF format with fonts embedded and at a resolution of 300 dots per inch (dpi) or greater. Finally, all ArcMap documents (.mxd) or equivalent map document formats used in final map production are also required for delivery to EPA with accompanying data in a stand-alone directory structure. Map document formats also need to be configured to use relative paths and not be set to use a printer-specific paper setting. All GIS files developed for EPA are required by Executive Order 12906 to have associated metadata. EPA requires FGDC compliant metadata on all GIS files developed for deliverables. It is important to understand that deliverables are not considered complete without metadata. Region 2 also requires that all dynamic maps (ArcMap documents) have metadata completed. The Content Standard for Digital Geospatial Metadata can be found at http://www.fgdc.gov. Metadata, including information about the data's projection, can be developed using one of several built-in or add on tools within a GIS, and typically is associated with the geometry file as an XML file. EPA has created the EPA Metadata Editor (EME) which is available for free download here and this tool can be used to help create FGDC compliant metadata. EPA Region 2 GIS staff are available to consult and advise on development of required metadata. All GIS files submitted to EPA must have spatial reference information that describes the projection, datum, and where applicable the collection methods. The EPA prefers to have vector data be submitted in geographic coordinate system, decimal degree units, and either NAD83 or WGS84 datum. Raster data, such as aerial photographs may be submitted in their native projection, and maps should be in the appropriate projection/coordinate system for the area depicted. EPA will accept data delivered on CD-ROM, DVD, or external hard drive, as well as direct electronic submission via email or FTP site. Other delivery methods may be allowed if those requirements present a significant burden or as technology changes. If the project is complex, a directory structure and readme text file in the upper level directory that describes the structure are required. A recommended directory structure is as follows: <,Project_Name>, Docs (reports, SOPs, correspondence, and other such documents) |_ Images (aerial photos, satellite imagery, logos, DEMs, and other raster type data) |_ Maps (MXDs and PDFs. Map names should use the project name as a prefix) |_ Shapes (geodatabases, shape files, and other approved vector data formats) |_ Source (original unmodified data that may have been acquired from external/internal sources) |_ Tables (MS-Access databases, spreadsheets, delimited text files, or other such tabular data not stored in a geodatabase) File naming conventions should be logical, consistent, and contain no spaces or special characters. An underscore may be used in lieu of a space. The following file formats are considered acceptable and all maps and data must include an associated metadata document: For any additional information about EPA Region 2 GIS technical guidance, please email r2gisdata@epa.gov Source.


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Last Modified: April 18, 2016 @ 10:05 am