Geodataset Name:       GRNDWATR_CONTAM_OCT10
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         376

DATA SOURCE(S):                    Florida Department of Environmental Protection
SCALE OF ORIGINAL SOURCE MAPS:     24000
GEODATASET EXTENT:                 State of Florida

PUBLICATION DATE:                  20101028
TIME PERIOD OF CONTENT:            Begin Date: 19900101    End Date: 20101015
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: GRNDWATR_CONTAM_OCT10.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
OBJECTID	Internal feature number.
Shape	Feature geometry.
ZONE_ID	Zone ID.
CONTAMINANT_CODES	The Contaminant Codes for the Zone.
USGS_QUADS	USGS quad number
COUNTY_NAME	County Name.
FLORIDA_WMDS	Florida Water Management District.
ARSENIC	Presence of arsenic 0 = Not present 1 = Present
BARIUM	Presence of barium 0 = Not present 1 = Present
CADMIUM	Presence of cadmium 0 = Not present 1 = Present
CHROMIUM	Presence of chromium 0 = Not present 1 = Present
FLOURIDE	Presence of flouride 0 = Not present 1 = Present
LEAD	Presence of lead 0 = Not present 1 = Present
MERCURY	Presence of mercury 0 = Not present 1 = Present
NITRATE_AS_N	Presence of nitrate (N) 0 = Not present 1 = Present
SELENIUM	Presence of selenium 0 = Not present 1 = Present
SILVER	Presence of silver 0 = Not present 1 = Present
SODIUM	Presence of sodium 0 = Not present 1 = Present
ENDRIN	Presence of endrin 0 = Not present 1 = Present
LINDANE	Presence of lindane 0 = Not present 1 = Present
METHOXYCHLOR	Presence of methoxychlor 0 = Not present 1 = Present
TOXAPHENE	Presence of toxaphene 0 = Not present 1 = Present
D_2_4	Presence of D-2,4 (2,4-D) 0 = Not present 1 = Present
SILVEX	Presence of silvex (2,4,5-TP) 0 = Not present 1 = Present
TRIHALOMETHANES_TOTAL	Presence of trihalomethanes (total) 0 = Not present 1 = Present
TRICHLORETHYLENE	Presence of trichloroethylene 0 = Not present 1 = Present
TETRACHLOROETHYLENE	Presence of tetrachloroethylene 0 = Not present 1 = Present
CARBON_TERACHLORIDE	Presence of carbon tetrachloride 0 = Not present 1 = Present
VINYL_CHLORIDE	Presence of vinyl chloride 0 = Not present 1 = Present
TRICHLOROETHANE_111	Presence of trichloroethane - 1,1,1 0 = Not present 1 = Present
DICHLOROETHANE_12	Presence of dichloroethane - 1,2 0 = Not present 1 = Present
BENZENE	Presence of benzene 0 = Not present 1 = Present
ETHYLENE_DIBROMIDE	Presence of ethylene dibromide 0 = Not present 1 = Present
DICHLOROBENZENE_PARA	Presence of dichlorobenzene - para 0 = Not present 1 = Present
DICHLOROETHYLENE_11	Presence of dichloroethylene - 1,1 0 = Not present 1 = Present
TOLUENE	Presence of toluene 0 = Not present 1 = Present
XYLENE_TOTAL	Presence of xylenes (total) 0 = Not present 1 = Present
ETHYLBENZENE	Presence of ethybenzene 0 = Not present 1 = Present
PENTACHLOROPHENOL	Presence of pentachlorophenol 0 = Not present 1 = Present
ALACHLOR	Presence of alachlor 0 = Not present 1 = Present
BROMOCIL_2	Presence of Bromocil [2] 0 = Not present 1 = Present
DICHLOROPROPANE_12	Presence of dichloropropane - 1,2 0 = Not present 1 = Present
DIBROMOCHLOROPROPANE	Presence of dibromochloropropane 0 = Not present 1 = Present
SIMAZINE	Presence of simazine 0 = Not present 1 = Present
MTBE_3	Presence of MTBE [3] 0 = Not present 1 = Present
BENZO_A_PYRENE	Presence of Benzo (a) pyrene 0 = Not present 1 = Present
NITRITES_NITRATES_TOTAL	Presence of NO2 and NO3 (total) 0 = Not present 1 = Present
CIS_1_2_DICHLOROETHYLENE	Presence of CIS-1, 2-dichloroethylene 0 = Not present 1 = Present
DICHLOROMETHANE	Presence of dichloromethane 0 = Not present 1 = Present
DESCRIPT	GROUND WATER CONTAMINATION AREA & ZONE_ID.
FGDLAQDATE	The date FGDL acquired the data from the source.
AUTOID	Unique ID added by GeoPlan.
SHAPE.AREA	No description
SHAPE.LEN	No description

ATTRIBUTE DESCRIPTION : The presence of ground water contaminants is indicated by a number 1 for each of the 42 contaminants listed in the pat. The DEP quad number is referenced by the item quad#, the delineated area is referenced by item zoneid, the water management district is referenced by the item wmd, and the quad name is listed in item quad-name. Contaminant Codes definitions are as follows: Contaminant Code Contaminant Name 1 Arsenic 2 Barium 3 Cadmium 4 Chromium 5 Flouride 6 Lead 7 Mercury 8 Nitrate(N) 9 Selenium 10 Silver 11 Sodium 12 Endrin 13 Lindane 14 Methoxychlor 15 Toxaphene 16 D-2,4 (2,4-D) 17 TP-2,4,5 (Silvex) (2,4,5-TP) 18 Trihalomethanes (Total) 19 Trichloroethylene 20 Tetrachloroethylene 21 Carbon Tetrachloride 22 Vinyl Chloride 23 Trichloroethane-1,1,1 24 Dichloroethane-1,2 25 Benzene 26 Ethylene Dibromide 27 Dichlorobenzene-para 28 Dichloroethylene-1,1 29 Toluene 30 Xylenes (Total) 31 Ethylbenzene 32 Pentachlorophenol 33 Alachlor 34 Bromocil [2] 35 Dichloropropane-1,2 36 Dibromochloropropane 37 Simazine 38 MTBE [3] 39 Benzo(a)pyrene 40 NO2 and NO3 (Total) 41 CIS-1,2-Dichloroethylene 42 Dichloromethane

USER NOTES:

This data is provided 'as is'. GeoPlan relied on the integrity of the original data layer's topology

This data is provided 'as is' by GeoPlan and is complete to our knowledge.

GeoPlan relied on the integrity of the attribute information within the original data.

Each Delineated Area is identified by a unique Zone ID. The Zone ID is made up of the County Code number, the Contaminant Code number, Number of revisions, and a three-digit value. To interpret the Zone ID: 1) The first 2 digits are the Florida County Code number. 2) The next 2 digits are the contaminant code. If the contaminant code value is between 1 and 9 it only uses one digit. If there is more than one contaminant the code will be 99. 3) The next digit is the number of revisions on this Zone ID. 4) The last three digits are a number ensuring the ZONE ID is unique. Note: Contaminant codes are listed at the end of the Entity Attribute section, under Entity and Attribute Overview.

This GIS layer is intended to be used by regulatory agencies issuing potable water well construction permits in areas of ground water contamination to protect public health and the ground water resource. Permitted water wells in these areas must meet specific well construction criteria and water testing prior to well use. Other users of this layer may use it as a screening tool for further investigation. This dataset only indicates the presence or absence of specific groundwater contaminants and does not represent all known sources of groundwater contamination in the state of Florida.

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

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

No constraint: Delineated areas are mapped and adopted by rule under Chapter 62 -524, G.A.C. *Note: This GIS layer does not represent all known sources of groundwater contamination for the state of Florida. FDEP: This data is intended to be used for general informational and planning purposes, and is not appropriate for legal and/or cadastral purposes. FDEP: The data set is NOT a survey document and should not be utilized as such. FDEP GIS data is provided as a public service. FDEP makes every effort to provide accurate and complete data. Metadata is provided for all datasets and no data should be used without first reading and understanding the limitations of the data. The Florida Department of Environmental Protection (FDEP) provides NO WARRANTY as to the accuracy of this data or any corresponding attributes or metadata. Data is provided in an as is condition, without warranty of any kind, either expressed or implied, including any assurance that the data is fit for a particular purpose. FDEP shall have no liability, in any case, to the use of provided data (including redistribution and reproduction). Full liability, responsibility and consequence relating to the use of provided data rest with the user.

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:

Florida Department of Environmental Protection Geospatial Open Data http://geodata.dep.state.fl.us/datasets/ground-water-contamination-areas

DATA LINEAGE SUMMARY:

For HRS EDB wells, USGS 7.5" quadrangles were overlayed with 100 meter UTM grids. The location of each contaminated well was digitized to the nearest 100 meters in the appropriate UTM projection. These points were then buffered by 1000-2000 feet. Site maps and plume models were transferred to 7.5" quads and digitized on a Calcomp 9100 digitizer using ARC/INFO. The individual quad coverages of buffered points were projected from UTM to Lambert using ARC/INFO for VMS on a VAX. The coverages were then map joined, dissolved, projected to Albers Equal Area Conic, and exported. The exported coverages were ftp'd to a DEC/ALPHA UNIX system, imported using ARC/INFO 6.1.2 and inserted into the quad library. In Spring '97 the data was converted from NAD27 to HPGN using the projection command within ARC/INFO version 7.0.4. In Spring, 1999, the shapefile of this dataset was inserted in Spatial Database Engine (SDE 3.0.2). Process Date: 19900101 Utilized the Attribute Transfer Tool to update the geometry of ZONEID 55993078. The updated boundary is based on the scanned copy of: "Existing/Proposed Delineated Areas, Silvex Site, Zone ID# 55993078," map created by Tricia McClenahan, 05/04/2000. The scanned map was georeferenced and digitized at 1:2,400 scale. The boundary was then tentatively approved by Joe North and then approved for upload by David James 09/10/2010. Process Date: 20100917 (1)Attributes were aliased to give meaningful names, redundant attributes were removed, attribute values were standardized, and symbology was defined for this layer. (2) Metadata: Updated Contact person. Updated Time Period of Content. Added descriptive language to abstract, purpose, and supplementary information. Added tabular data describing contaminant codes. Process Date: 20101014 (1) Deleted 6 features that had geometry, but no attribution at all. (2) Deleted 6 additional features that had no contaminant codes listed: ZONEID: 42003690 53003411 53003412 53003453 53003469 28003717 Process Date: 20101015 Updated layer obtained from WRM and inserted in ArcSDE. Data published in DataCatalog, DataMiner and published in MapDirect. Process Date: 20101028 The GeoPlan Center downloaded the Ground Water Contamination Areas dataset on August 1st, 2018 from the FDEP Data Portal: Florida Department of Environmental Protection Geospatial Open Data: http://geodata.dep.state.fl.us/ http://geodata.dep.state.fl.us/datasets/ground-water-contamination-areas Please Note: Data is also available via the FTP website: http://publicfiles.dep.state.fl.us/otis/gis/data/ground_water_contamination.zip GROUND_WATER_CONTAMINATION.zip GROUND_WATER_CONTAMINATION.gdb The GDB layer was exported to shapefile. The dataset's projection was redefined to FGDL Albers. During the QA/QC process the following tasks were undertaken: - Redefined the dataset's projection from FDEP Albers to FGDL Albers. - Uppercased all records in the table. - A DESCRIPT field was added based on "GROUND WATER CONTAMINATION AREA" & ZONE_ID. - A FGDLAQDATE field was added based on date downloaded from source. - Renamed file from GROUND_WATER_CONTAMINATION to GRNDWATR_CONTAM_OCT10. Process Date: 20180808 Dataset copied. Process Date: 20180828

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:

Florida Department of Environmental Protection (FDEP) OTIS/GIS Section
FDEP
2600 Blair Stone Rd., MS 6520
Tallahassee, FL
32399-2400



http://publicfiles.dep.state.fl.us/otis/gis/data/
GIS.Librarian@dep.state.fl.us

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

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