FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
FLORIDA SOLE SOURCE AQUIFERS
Geodataset Name: SSAQUIFERS Geodataset Type: SHAPE Geodataset Feature: POLYGON
GENERAL DESCRIPTION:
DATA SOURCE(S): US Environmental Protection Agency SCALE OF ORIGINAL SOURCE MAPS: UNKNOWN DATE OF AUTOMATION OR SOURCE: 5/3/2002 GEODATASET EXTENT: State of Florida
FEATURE ATTRIBUTE TABLES
NAME WIDTH TYPE PRECISION AQ_NAME 65 CHARACTER
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM DESCRIPTION AQ_NAME Name of Sole Source Aquifer
USER NOTES:
The Environmental Protection Agency (EPA) defines a sole source aquifer (SSA) as an underground water source that supplies at least 50 percent of the drinking water consumed in the area overlying the aquifer. These areas can have no alternative drinking water sources(s) that could physically, legally, and economically supply all those who depend upon the aquifer for drinking water.
The Sole Source Aquifer Program is authorized by Section 1424(e) of the Safe Drinking Water Act of 1974. Designation of an aquifer as a SSA provides EPA with the authority to review federal financially assisted projects planned for the area to determine their potential for contaminating the aquifer. Federally funded projects reviewed by EPA under the SSA program may include, but not be limited to, highway improvements and new road construction, public water supply wells and transmission lines, wastewater treatment facilities, construction projects involving disposal of storm water, and agricultural projects involving management of animal waste.
As of October 1999, EPA has designated 70 sole source aquifers nationwide, two of which are in Florida:
Intended use of data: This data set was prepared to support transportation project planning activities.
Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data.
1:24000 scale datasets 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 datasets are recommended for projects that are at the multicounty or regional level.
1:250000 scale datasets 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
FGDL QUALITY ASSURANCE STATUS:
-Reprojected data to FGDL Albers
REFERENCES:
DATA LINEAGE SUMMARY:
Approximate boundaries of the Volusia-Floridan Aquifer and Biscayne Aquifer were digitized from a map image received from EPA Region 4 Sole Source Aquifer Coordinator. No source or locational accuracy information was available for the map, however, county boundaries were referenced to the USGS 1:100,000-scale DLG lines. Shorelines were clipped to the NOAA 1:40,000-scale coastline data set.
MAP PROJECTION PARAMETERS
Projection ALBERS Units METERS Datum HPGN Spheroid GRS1980 1st standard parallel 24 0 0.000 2nd standard parallel 31 30 0.000 central meridian -84 0 0.000 latitude of projection's origin 24 0 0.000 false easting (meters) 400000.00000 false northing (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: EPA Region 4 Sole Source Aquifer Coordinator Abbr.name: Address: US EPA Region IV, Water Division 61 Forsyth St., SE Atlanta, GA 30303-3104 Phone: (404) 562-9472 Fax: Web site: http://www.epa.gov/region4/water/groundwater/r4ssa.htm
FGDL CONTACT:
Name: FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture Building
PO Box 115706
Gainesville, FL 326115706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html