Geodataset Name:       SWFWMD_KARST_OCT02
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         4

DATA SOURCE(S):                    Southwest Florida Water Management District
SCALE OF ORIGINAL SOURCE MAPS:     100,000
GEODATASET EXTENT:                 Southwest Florida Water Management District

PUBLICATION DATE:                  20021028
TIME PERIOD OF CONTENT:            Begin Date: 1990    End Date: 1994
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: SWFWMD_KARST_OCT02.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
OBJECTID	Internal feature number.
Shape	Feature geometry.
FORMATION_	Formation Code: Codes of the rock formations To = Eocene group, Ocala Ls Ts = Oligocene group, Suwannee Ls That = Oligocene/Miocene group, Hawthorn Gp, Arcadia Fm, Tampa Mbr Tap = Eocene Group, Avon Park Fm
DATESTAMP	The date the feature was last edited or entered into the map libraries by SWFWMD staff.
DESCRIPT	Based on the field FORMATION_
FGDLAQDATE	Date FGDL acquired the data from the Source.
AUTOID	Unique ID added by GeoPlan
SHAPE.AREA	Area in meters
SHAPE.LEN	Perimeter in meters

USER NOTES:

The final product was checked against the source material. The Mapping and GIS section of the Southwest Florida Water Management District corrected any errors found.

The following groups were determined to be "Sensitive Karst Areas" and are the only formations found in this layer. to = Eocene group, Ocala Ls; ts = Oligocene group, Suwannee Ls; that = Oligocene/Miocene group, Hawthorn Gp, Arcadia Fm, Tampa Mbr; tap = Eocene Group, Avon Park Fm.

The SWFWMD has completed no formal accuracy assessment. It is assumed that the attribute accuracy is 100%. GeoPlan relied on the integrity of the attribute information within the original data.

The groups that were determined to be "Sensitive Karst Areas" are: to = Eocene group, Ocala Ls; ts = Oligocene group, Suwannee Ls; that = Oligocene/Miocene group, Hawthorn Gp, Arcadia Fm, Tampa Mbr; tap = Eocene Group, Avon Park Fm. What is Karst? Karst is a terrain with distinctive landforms and hydrology created from the dissolution of soluble rocks, principally limestone and dolomite. Karst terrain is characterized by springs, caves, sinkholes, and a unique hydrogeology that results in aquifers that are highly productive but extremely vulnerable to contamination. In the United States, about 40% of the groundwater used for drinking comes from karst aquifers. Some karst areas in the United States are famous, such as the springs of Florida, Carlsbad Caverns in New Mexico, and Mammoth Cave in Kentucky, but in fact about 20 percent of the land surface in the U.S. is classified as karst. Other parts of the world with large areas of karst include China, Europe, the Caribbean, and Australia. Karst hydrogeology is typified by a network of interconnected fissures, fractures and conduits emplaced in a relatively low-permeability rock matrix. Most of the groundwater flow and transport occurs through the network of openings, while most of the groundwater storage occurs in the matrix. As a result, most karst aquifers are highly heterogeneous and anisotropic, and much of karst research has focused on developing innovative approaches for better understanding and managing these valuable water resources. Source: http://water.usgs.gov/ogw/karst/pages/whatiskarst

This data layer was created for a study done by the Regulatory Department to show depth to rock, and provide a possible tool for the evaluation of likely disturbances to the aquifer from detention ponds.

The District has completed no formal accuracy assessment. It is assumed the data meets the National Map Accuracy Standards for scales of 1:100,000.

This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan

These data were not collected under the supervision of a licensed Professional Surveyor and Mapper. Use of these data requires a general understanding of GIS.

The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: 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 multi-county or regional level. 1:125000 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 analysis. 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 webpage at: http://geoplan.ufl.edu/education.html

REFERENCES:

Southwest Florida Water Management District http://www.swfwmd.state.fl.us/ Regulatory: Layers containing information on District permits. http://www.swfwmd.state.fl.us/data/gis/layer_library/category/regulatory

DATA LINEAGE SUMMARY:

The shapefile, Geologic Formations of Florida, was downloaded from FDEP's ftp site. It was converted into a coverage and reprojected to UTM, zone 17, meters, HPGN using ArcGIS 8.2 software (ArcToolbox). The coverage was built for polygon topology. The fuzzy tolerance was set to 0.001. This layer was clipped to the District boundary using ArcToolbox. The Mapping and GIS Section was given a list of the formations deemed to be "sensitive Karst areas" by the Regulatory Department. Using ArcMap 8.2, the FORM_CODE was used to select the "sensitive Karst areas". The selection was then exported as a new layer. - stratigraphy Process Date: 20021028 An enterprise geodatabase was designed and implemented. Coverages were converted into feature classes using ArcCatalog 8.3. The feature classes were created new in a feature dataset, with column names, shape type, grid size, and projection information defined during creation. An X/Y Domain and Precision were set at MinX: -700,000; MinY: 2,000,000; Precision: 1000. Z-Values were set at MinZ: -20; Precision: 1000. The Grid Tile Size is 30,000. Data was then loaded into the feature classes from the coverages using the 'Load Data' tool in ArcCatalog 8.3. Process Date: 20040128 Metadata imported. Process Date: 20090708 The GeoPlan Center downloaded the original dataset from the following Southwest Florida Water Management District website on October 14th, 2011. http://www.swfwmd.state.fl.us/data/gis/layer_library/category/regulatory http://www.swfwmd.state.fl.us/gisdata/regulatory/karst.exe The dataset was originally named SENSITIVEKARSTAREAS.shp The dataset was renamed to SWFWMD_KARST_OCT02.shp The dataset was reprojected from NAD_1983_HARN_StatePlane_Florida_West_FIPS_0902_Feet to the FGDL Albers projection. Added field DESCRIPT and populated based on FORMATION_ Added and populated the FGDLAQDATE field. DID NOT upper case the DESCRIPT on purpose. Process Date: 20111014

MAP PROJECTION PARAMETERS:

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:

Southwest Florida Water Management District
SWFWMD
2379 Broad Street (U.S. 41 South)
Brooksville, FL
34604-6899
(352) 796-7211


http://www.swfwmd.state.fl.us/data/gis/layer_library/category/regulatory

Mapping and GIS Section

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
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