For more information about how these mandates are established, please see:
American Management Systems. 1991. TRI Data Quality Assurance for Geographic Information Systems. American Management Systems. Arlington, Virginia. 1991.
Geographic Data Technology, Inc. 1990. 1990 Five Digit ZIP Code Inventory File Documentation. Geographic Data Technology, Inc. Lyme, NH. 1990.
U.S. Environmental Protection Agency. 1991. Inventory of ExposureRelated Data Systems Sponsored by Federal Agencies. U.S. Environmental Protection Agency and The Center for Disease Registry. Washington, D.C. 1991.
Office of Toxic Substances, USEPA. 1991. TRIPQUIC The Toxic Release Inventory Quick Analysis Tool Kit Users Guide 3.0. U.S. Environmental Protection Agency. Washington, D.C. 1991.
Office of Pollution, Prevention, and Toxics, USEPA. 1995. 1993 Toxics Release Inventory, Public Data Release Document #EPA745 R95010. U.S. EnvironmentalProtection Agency. Washington, D.C. 1995.
Office of Information Resources Management, USEPA. 1991. Locational Data Policy Guidance. U.S. Environmental Protection Agency. Washington, D.C.
Office of Information Resources Management, USEPA. 1995. Method AccuracyDescription (MAD), version 6.1 Information Coding Standards for the U.S. Environmental Protection Agency's Locational Data Policy (LDP). U.S. Environmental Protection Agency. Washington, D.C. 1995. <http://www.epa.gov/docs/ngispr/mad.html>
THE DATA INCLUDED IN THIS APPLICATION ARE BASED ON INTERPRETATION OF AVAILABLE INFORMATION AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING.
Scale is an important factor in data usage. Certain scale data sets are not suitable for some projects, analysis, or modeling purposes. Please be sure you are using the best available data.
1:24000 scale data sets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries.
1:100000 scale data sets are recommended for projects that are at the multi-county or regional level. 1:250000 scale data sets are recommended for projects that are at the regional or state level or larger.
Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: <http://www.geoplan.ufl.edu/education.html>