Florida Department of Environmental Protection, Florida Geological Survey 20070410 vector digital data Tallahassee, FL Florida Department of Environmental Protection, Florida Geological Survey State of Florida http://www.dep.state.fl.us/geology/ This dataset represents a set of points for reported sinkhole events. The data herein represents reported sinkhole activity but may also contain non-karst related subsidence such as collapsed septic systems, water mains, and/or other man-made features. These reported events have not been verified or validated as karst sinkholes by the Florida Geological Survey (FGS). Verification of the reported sinkhole is karst related is the responsibility of the property owners and/or their representatives. The coverage represents only a partial spatial representation of sinkholes in Florida as most are reported from population centers. This information contained in this dataset is primarily used to more fully understand the unique relationship between karst and the state's groundwater resources and aquifer systems. It should be noted that not all sinkhole reports are karst related and that determination has not been added to this database. Since its inception in 1907, the Florida Geological Survey (FGS) has gathered data on Florida karst (sinkholes, caves, springs, swallets etc.). In 1982, the Florida Sinkhole Research Institute (FSRI) was created at the University of Central Florida in Orlando. At that time all FGS sinkhole data files were transferred to the FSRI. One of their programs was to compile and tabulate this information and convert it to a computer database. When the Florida legislature discontinued FSRI's funding in the early 1990's, the FSRI nearly ceased operations entirely. After that the database was returned to the FGS and selected portions of the information were published in 1994 as FGS Open File Report 58, "FLORIDA SINKHOLE INDEX." The data is currently available in a Microsoft Excel spreadsheet and ESRI shapefile format via the FGS Internet web site. The Florida Sinkhole Research Institute (FSRI) is still located at the University of Central Florida (UCF) and their current director is Dr. Shiou-San Kuo. He can be reached at UCF's Department of Civil and Environmental Engineering at (407) 823-2280. FLORIDA GEOLOGICAL SURVEY SPATIAL DATA DISCLAIMER This geologic data was developed by the Florida Department of Environmental Protection (FDEP) - Florida Geological Survey (FGS) to carry out agency responsibilities related to management, protection, and development of Florida's natural resources. Although efforts have been made to make the information accurate and useful, the FDEP/FGS assumes no responsibility for errors in the information and does not guarantee that the data are free from errors or inaccuracies. Similarly FDEP/FGS assumes no responsibility for the consequences of inappropriate uses or interpretations of the data. As such, these digital data are distributed on an "as is" basis and the user assumes all risk as to their quality, the results obtained from their use, and the performance of the data.FDEP/FGS bears no responsibility to inform users of any changes made to this data. The data in this database was obtained from a variety of sources. Sinkhole records listed in this database, in many instances, have not been field checked or verified by FDEP/FGS professional geologists. Additionally, the locations of many of these sinkholes have not been verified. As such, anyone using this data is advised that precision implied by the data may far exceed actual precision. Comments on this data are invited and FDEP/FGS would appreciate that documented errors be brought to staff attention. The development of these data sets represents a major investment of staff time and effort. As a professional responsibility, we expect that the FDEP/FGS will receive proper credit when you utilize these data sets. Further, since part of this data was developed and collected with U.S. Government or State of Florida funding, no proprietary rights may be attached to it in whole or in part, nor may it be sold to the U.S. Government or the Florida State Government as part of any procurement of products or services . The use of information from the FGS site by a third party does not indicate that the FGS recommends or endorses the third party user or their services. Please contact the FGS GIS subsection for additional information. Florida Geological Survey ATTN: Geographic Information Systems Gunter Building, MS720 903 W. Tennessee St. Tallahassee, Florida 32304 (850) 487-9455 ext. 153 19480101 20070410 publication date Complete As needed -86.658229 -79.948330 30.974741 24.523708 None Karst Caves Sinkhole Sinks ISO 19115 Topic Category geoscientificInformation None Florida None THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. 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 Florida Geographic Data Library (FGDL) mailing

431 Architecture PO Box 115706

Gainesville Florida 32611-5706 US FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html For FGDL Software: http://www.fgdl.org/software.html Technical Support: http://www.fgdl.org/fgdlfeed.html Web site: http://www.fgdl.org FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 Florida Sinkhole Research Institute (FSRI) 20070410 vector digital data Tallahassee, FL Florida Department of Environmental Protection/ Florida Geological Survey OFR-58: Florida Sinkhole Index (Document) Florida Geological Survey, 1994 FDEP FGS Sinkholes Database Download Page: http://www.dep.state.fl.us/geology/gisdatamaps/sinkhole_database.htm http://www.dep.state.fl.us/geology/ GeoPlan relied on the integrity of the attribute information within the original data. During the QA/QC process, errors of location data were discovered and all data hardcopies were reviewed to ensure correctness. If errors were found in the electronic copy, then data is corrected accordingly. Certain attributes and/or entities convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by using a "U" for alphanumeric strings or a string of "9s" for numeric data. FGDL downloaded this dataset from the Florida Department of Environmental Protection website in ArcView shapefile format. The Arcview shapefile is not as current as the excel file, which is also available for download from the FDEP website. Sinkholes shown are publicly reported. As such they represent only a portion of all sinkholes to be found in the State of Florida. Most reported sinkholes come from population centers throughout Florida. Data was originally collected by the Florida Geological Survey, transferred to the Florida Sinkhole Research Institute (FSRI), University of Central Florida, then transferred back to the Florida Geological Survey and has been updated approximately every 2-3 months. Shapefiles for point features are generated approximately every year. All attributes created were visually verified by a geologist and GIS personnel (actual sites may have not been field checked). THE DATA HEREIN REPRESENTS REPORTED SINKHOLE ACTIVITY BUT MAY ALSO CONTAIN NON-KARST RELATED SUBSIDENCE SUCH AS COLLAPSED SEPTIC SYSTEMS, WATER MAINS, AND/OR OTHER MAN-MADE FEATURES. SITES SHOULD REMAIN SUSPECT UNTIL FURTHER GEOTECHNICAL EVALUATIONS HAVE BEEN MADE AT THE SITE OR INFORMATION HAS BEEN PROVIDED TO CONFIRM THE EXISTENCE OF A KARST RELATED SINKHOLE. THIS DATA SHOULD NOT BE USED FOR SITE-SPECIFIC EVALUATION, ENGINEERING, AND/OR INTERPRETATION PURPOSES. THIS DATA MAY NOT BE RESOLD IN ANY FASHION AND IS PUBLIC DATA. No known accuracy can be reported using this data as some reports only generate PLSS coordinates. Sinkholes are not normally surveyed. No known vertical accuracy can be assumed with this dataset. Sinkholes are not normally surveyed. Florida Sinkhole Research Institute (FSRI) 20070410 vector digital data Tallahassee, FL Florida Geological Survey/Florida Department of Environmental Protection http://www.dep.state.fl.us/geology/ 0 None 19480101 20070410 publication date FSRI, FDEP/FGS Spatial and Attribute Information Exported relevant fields from Excel database to .dbf file. Used a DEP Custom Arcview Extension to import *.dbf file and reproject to custom Albers projection and saved as shapefile. Shapefile was checked for gross errors in horizontal location and corrected. FDEP FGS unknown Florida Geological Survey Rick Green Sinkhole Database Administrator/Professional Geologist mailing and physical

Gunter Building MS#720, 903 W. Tennessee St.

Tallahassee FL 32304-7700 850-488-4191 850-488-8086 rick.green@dep.state.fl.us 8-5 M-F In this process step, database refers to the Microsoft Excel data-file created to maintain the sinkhole data. In preparation for a new database the following has been performed on this database: 1. All data was QA/QC for positional accuracy by running two error checks: a. Spatial join of original data to verify STR and COUNTY information. b. Ensure the data was inside the boundaries of Florida. 2. Database errors were double checked against paper copies of the reports to ensure the database contained the correct coordinates, addresses and/or location references. If errors were found, corrections to the fields were made immediately. a. In the case a specific reference number (REFNUM) was spatially incorrect and was discovered to be in another county the REFNUM was reassigned and noted in the COMMENTS. b. In the case of errors regarding location, LAT/LONG and/or PLSS data was corrected to the proper coordinates based on the Florida DEP, Division of State Lands PLSS layer. c. Location references for reports that were determined to not be karst related 3. No other errors were checked and/or corrected. 4. Once QA/QC had been completed on the database, the database was converted into a dBase IV file, opened in ArcMap, and plotted using the ADD XY tool within ArcMap. 5. The event file was then generated to a point shapefile. FDEP FGS 20070410 mailing and physical The GeoPlan Center downloaded the dataset with 2843 records, then subsequently deleted 12 records which were outside the extent of the state of Florida. Accordingly the current dataset has 2831 records. GeoPlan 20070827 GeoPlan downloaded the sinkhole shapefile from the following FDEP FGS website in August 2007: FDEP FGS Sinkholes Database Download Page: http://www.dep.state.fl.us/geology/gisdatamaps/sinkhole_database.htm The original dataset was projected in FDEP Albers. GeoPlan, during the QA/QC process included the following aspects: (1) Changed the filename from SinkholeDatabase.shp to SNKHLE_APR07 (2) Added FGDLAQDATE field (3) Added DESCRIPT field based on ONAME (4) Added AUTOID field for internal tracking (based on FID + 1) (5) Changed all field values to uppercase GeoPlan 20070827 Vector Entity point 2831 NAD 1983 HARN Florida GDL Albers 24.0 31.5 -84.0 24.0 400000.0 0.0 coordinate pair 0.0001 0.0001 meter D North American 1983 HARN GRS 1980 6378137.0 298.257222101 SNKHLE_APR07 SNKHLE_APR07.DBF FDEP OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. REF_NUM First two digits follow Florida DOT county numbering system, last three digits are randomly assigned. FDEP TRUE_SINK Is it a true sink? FDEP DATE_ADD Date added FDEP DATE_REV Date revised FDEP OMONTH Occurred month FDEP ODAY Occurrence day FDEP OYEAR Occurrence year FDEP TIME Occurrence time FDEP LONG_DD Longitude - Decimal Degrees FDEP LONG_MM Longitude - Minutes FDEP LONG_SS Longitude - Seconds FDEP LONGDEC Longitude - Decimal Degrees FDEP LAT_DD Latitude - Decimal Degrees FDEP LAT_MM Latitude - Minutes FDEP LAT_SS Latitude - Seconds FDEP LATDEC Latitude - Decimal Degrees FDEP CO County FDEP TWNSHP PLSS Township FDEP RANGE PLSS Range FDEP SECTION PLSS Section FDEP QTRSECT1 Smallest Quarter FDEP QTRSECT2 Largest Quarter FDEP QTRCONVERT Quarter Conversion FGS Standard QTRCONVE_1 Quarter Conversion FGS Standard QTRQTRFGS QTR - QTR in FGS Standard Doc FDEP QUAD USGS Topographical Quadrangle FDEP ONAME Owner's Name FDEP OSTREET Owner's Address FDEP OCITY Owner's City FDEP OZIP Owner's Zip FDEP EVTADDR Event address is different from Owners FDEP OPHONE Owner's phone FDEP SIZDIM How was the size of the sinkhole determined? FDEP U Unknown/No calculated measure FDEP M Measured FDEP E Estimated FDEP SINSHAPE Shape of sinkhole FDEP C Circular FDEP E Elongated FDEP E/C Elongated FDEP U Unknown FDEP SINLNGTH Length of sinkhole FDEP SINWIDTH Width of sinkhole FDEP SINDEPTH Depth of sinkhole FDEP SLOPE Side slope of sinkhole FDEP WATSIN Water in sink? FDEP Y Yes FDEP N No FDEP U Unknown FDEP WATBLS Depth to water surface below ground surface FDEP LIMVIS Is limestone visible? FDEP Y Yes FDEP N No FDEP U Unknown FDEP CAVVIS Is cave visible? FDEP Y Yes FDEP N No FDEP U Unknown FDEP SUBRATE Substrate rate FDEP R Rapid FDEP S Slow FDEP U Unknown FDEP SLOW Slow FDEP TRIGGERS Trigger mechanisms FDEP COL_CODE Pre-Collapse Conditions FDEP 1 FDEP Runoff Ponding 12 FDEP Runoff Ponding, Grnd. Cracks 123 FDEP Runoff Ponding, Grnd. Cracks, Tilting objects 12345 FDEP Runoff Ponding, Grnd. Cracks, Tilting objects, Small holes, Well turbidity 124 FDEP Runoff Ponding, Grnd. Cracks, Small holes 13 FDEP Runoff Ponding, Tilting objects 14 FDEP Runoff Ponding, Small holes 146 FDEP Runoff Ponding, Small holes, Vegetation 15 FDEP Runoff Ponding, Well turbidity 2 FDEP Grnd. Cracks 23 FDEP Grnd. Cracks, Tilting objects 234 FDEP Grnd. Cracks, Tilting objects, Small holes 236 FDEP Grnd. Cracks, Tilting objects, Vegetation 24 FDEP Grnd. Cracks, Small holes 25 FDEP Grnd. Cracks, Well turbidity 27 FDEP Grnd. Cracks, Unknown 3 FDEP Tilting objects 34 FDEP Tilting objects, Small holes 35 FDEP Tilting objects, Well turbidity 36 FDEP Tilting objects, Vegetation 4 FDEP Small holes 45 FDEP Small holes, Well turbidity 46 FDEP Small holes, Vegetation 47 FDEP Small holes, Unknown 5 FDEP Well turbidity 6 FDEP Vegetation 7 FDEP Unknown PROPDAM Was structure damaged? FDEP Y Yes FDEP N No FDEP U Unknown FDEP REPAIRED Was sinkhole repaired? FDEP Y Yes FDEP N No FDEP U Unknown FDEP PLANNED Is repair planned for sinkhole? FDEP Y Yes FDEP N No FDEP TOPO1 Topography - Flat 1 FDEP TOPO2 Topography - Hilltop 2 FDEP TOPO3 Topography - Slope 3 FDEP TOPO4 Topography - Valley Bottom 4 FDEP TOPO5 Topography - Depression 5 FDEP TOPO6 Topography - Other See Comm. 6 FDEP DRAINSTR Drainage Structures Present FDEP LUCODE Landuse Code FDEP 1 Cropland FDEP 2 Pasture FDEP 3 Forest FDEP 4 Grove FDEP 5 Wetland FDEP 6 Suburban Low Density FDEP 7 Urban High Density FDEP 8 Industrial FDEP LANDUS1 Landuse - Cropland 1 FDEP LANDUS2 Landuse - Pasture 2 FDEP LANDUS3 Landuse - Forest 3 FDEP LANDUS4 Landuse - Grove 4 FDEP LANDUS5 Landuse - Wetland 5 FDEP LANDUS6 Landuse - Suburban Low Density 6 FDEP LANDUS7 Landuse - Urban High Density 7 FDEP LANDUS8 Landuse - Industrial 8 FDEP SOILTYPE Soil Type Present FDEP NEARSIN Near New Sinks? FDEP Y Yes FDEP N No FDEP U Unknown FDEP OLDSIN Near Old Sinks? FDEP Y Yes FDEP N No FDEP U Unknown FDEP COMMENTS Comments FDEP ACCESS_ Access to Sink FDEP WITNAM Witness Name FDEP WITADDRE Witness Address FDEP WITCTZIP Witness City/Zip FDEP WITPHONE Witness Phone FDEP FGDLAQDATE Date FGDL acquired the dataset. GeoPlan DESCRIPT FGDL added item based on ONAME. GeoPlan AUTOID FGDL Internal Tracking ID (FID + 1) GeoPlan SHAPE Feature geometry. ESRI Coordinates defining the features. Florida Geographic Data Library (FGDL) mailing

431 Architecture PO Box 115706

Gainesville Florida 32611-5706 US Mailing list for FGDL: http://www.fgdl.org/fgdl-l.html Web site: http://www.fgdl.org For FGDL Software: http://www.fgdl.org/software.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html Technical Support: http://www.fgdl.org/fgdlfeed.html DOWNLOADABLE DATA THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE 'MATERIALS') ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE 'DATA PROVIDERS'). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED 'AS IS'. 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 MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. 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. G 20200303 Florida Geological Survey Rick Green Sinkhole Database Administrator/Geologist mailing and physical

903 W. Tennessee St., Gunter Bldg MS720

Tallahassee FL 32304 US 850-487-9455 850-488-8086 rick.green@dep.state.fl.us M-F 8-5 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time