Idaho National Laboratory Los Alamos National Laboratory Oak Ridge National Laboratory 20200708 Vector Digital Data Set (Point) Oak Ridge, TN Oak Ridge National Laboratory State of Florida https://hifld-geoplatform.opendata.arcgis.com/datasets/electric-substations Homeland Infrastructure Foundation-Level Data (HIFLD) Subcommittee GIS Data Project/Collection This feature class/shapefile represents electric power substations primarily associated with electric power transmission in the State of Florida. In this layer, substations are considered facilities and equipment that switch, transform, or regulate electric power at voltages equal to, or greater than, 69 kilovolts. Substations with a maximum operating voltage less than 69 kilovolts may be included, depending on the availability of authoritative sources, but coverage of these features should not be considered complete. The Substations feature class/shapefile includes taps, a location where power on a transmission line is tapped by another transmission line. This dataset is an update to the FGDL layer ELECTRIC_SUBSTAT_JUL19. This feature class/shapefile is for the Homeland Infrastructure Foundation Level Database (HIFLD) (https://gii.dhs.gov/HIFLD) as well as the Energy modelling and simulation community. None. 20200708 publication date Complete Continually -87.456050 -79.891638 31.024359 24.513425 None homeland security power name transmission energy infrastructure address transformers homeland defense substations emergency response voltage electricity kilovolts ISO 19115 Topic Categories structure None Florida None 2020 None (Public Domain Information) None (Public Use). Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Oak Ridge National Laboratory mailing and physical

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Oak Ridge TN 37831 US 865-241-3976 865-241-6261 Oak Ridge National Laboratory (ORNL), Los Alamos National Laboratory (LANL), Idaho National Laboratory (INL), National Geospatial-Intelligence Agency (NGA) Homeland Security Infrastructure Program (HSIP) Team. https://hifld-geoplatform.opendata.arcgis.com/datasets/electric-substations Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 GeoPlan relied on the integrity of the attribute information within the original data. No formal attribute accuracy test was conducted. Data from the authoritative sources (as identified in other sections of this metadata) is assumed to be correct and accurate. See also “Overview Description” in the “Entities and Attributes” metadata section. Data were extracted from sources (identified in the SOURCE field) and other open source websites to populate the attribute fields; NOT AVAILABLE values (for string and date data types) and Null values (for numeric data types) denote missing data that was not present in the source data. During quality control, attributes were checked to ensure that they fell within the expected ranges or had expected/valid values. Text attribute values were checked for spelling and usage consistency. No topology tests were conducted. All records were verified to occur within the spatial domain of the feature class/shapefile. This data is provided 'as is'. GeoPlan relied on the integrity of the original data layer's topology. Data is complete as of the most recent date indicated in the Time Period section and given available sources. This data is provided 'as is' by GeoPlan and is complete to our knowledge. This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan. None; all efforts are made to place the geographic representation of the facility on-entity using the best available imagery from a wide variety of sources. Users should read and understand the VAL_METHOD metadata as well as the Processing Steps. This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan. None; dataset contains no vertical data. see SOURCE field Other see SOURCE field see SOURCE field onLine see SOURCE field Authoritative data sources are identified through open source research. That data is then acquired and transformed into a usable data format. The properly formatted data then goes through preprocessing steps that includes a georeferencing or spatial adjustment operation to give spatial context to the data. In the absence of authoritative sources, feature geometry is created based on interpretation of the best available imagery. After preprocessing, records go through a review process in an effort to meet the goal of placing each feature on a facility based on-entity location based on interpretation of the best available imagery and open source information. The VAL_DATE field indicates the date in which the review step took place. ORNL 20190708 The GeoPlan Center downloaded the electric power transmission lines data from the following website on July 6th, 2021. Homeland Infrastructure Foundation-Level Data (HIFLD) Open Data https://hifld-geoplatform.opendata.arcgis.com/ https://hifld-geoplatform.opendata.arcgis.com/datasets/electric-substations Electric_Substations.zip Electric_Substations.shp The data was originally in the following projection: Name: GCS_WGS_1984 Details: Angular Unit: Degree (0.017453292519943295) Prime Meridian: Greenwich (0.000000000000000000) Datum: D_WGS_1984 Spheroid: WGS_1984 Semimajor Axis: 6378137.000000000000000000 Semiminor Axis: 6356752.314245179300000000 Inverse Flattening: 298.257223563000030000 During the QA/QC process, the following steps were taken: -The original data was filtered with STATE= FL for download. -The dataset was reprojected to FGDL Albers Harn HPGN using the following transformation: WGS_1984_(ITRF00)_To_NAD_1983 + NAD_1983_To_HARN_Florida -Deleted the OBJECTID field. -Added and Populated the LAT_DD, LONG_DD, MGRS, GOOGLEMAP fields. -Added and Populated the DESCRIPT field as: "ELECTRIC SUBSTATION: " & [NAME] -Added and Populated the FGDLAQDATE field. -Uppercased all fields except the SOURCE fields which contained website information. -Updated the metadata. GeoPlan 20210706 Vector Entity point 2533 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 ELECTRIC_SUBSTAT_JUL20 ELECTRIC_SUBSTAT_JUL20.DBF Originator defined OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. ID Unique ID for each feature. ID values are unique to this dataset ONLY and may have changed from the previous versions of the dataset, and/or change in a future version of the dataset. Originator defined NAME Feature name. The responsible organization as identified in the SOURCE field. CITY City name. The responsible organization as identified in the SOURCE field. STATE State abbreviation (United States and its Territories); Province abbreviation (Canada) The responsible organization as identified in the SOURCE field. Two–Letter State and Possession Abbreviations United States Postal Service (https://www.usps.com) Two-Letter Province Abbreviation Canada Postal (https://www.canadapost.ca) ZIP Zip Code (5 digit); Postal Code (Canada; 6-digit). The responsible organization as identified in the SOURCE field. US Postal Zip Codes United States Postal Service (https://www.usps.com) Postal Codes Canada Postal (https://www.canadapost.ca) TYPE Specific categorical breakdown for the feature. Originator defined DEAD END Termination of a transmission line Originator defined RISER A structure that connects an overhead line to an underground line. Originator defined SUBSTATION Facilities and equipment that switch, transform, or regulate electric power. Originator defined TAP Location where power on a transmission line is tapped by another transmission line. Originator defined NOT AVAILABLE Please see "Entity Type Definition" section Originator defined STATUS Operational status of the feature. The responsible organization as identified in the SOURCE field. IN SERVICE Operational The responsible organization as identified in the SOURCE field. INACTIVE Not operational The responsible organization as identified in the SOURCE field. PROPOSED Proposed The responsible organization as identified in the SOURCE field. UNDER CONST Under construction as of the publication date The responsible organization as identified in the SOURCE field. NOT AVAILABLE Please see "Entity Type Definition" section Originator defined COUNTY United States and its Territories county name and legal/statistical area description (county, borough, parish, municipality, census area); Canada (province, territory) Oak Ridge National Laboratory COUNTYFIPS US County Federal Information Processing Standards (FIPS) Code (5 digit); Canada Standard Geographical Classification (SGC) Code (7 digit) Originator defined 2010 FIPS Codes for Counties and County Equivalent Entities; Standard Geographical Classification 2011 FIPS/Census (http://www.census.gov/geo/reference/codes/cou.html); Statistics Canada (http://www.statcan.gc.ca/pub/92-195-x/2011001/other-autre/sgc-cgt/sgc-cgt-eng.htm) COUNTRY Country Code (3 character). Originator defined Geopolitical Entities, Names, and Codes (GENC) Standard National System for Geospatial Intelligence (NSG) Standards Registry (https://nsgreg.nga.mil/genc/discovery) LATITUDE The angular distance north or south from the equator on the earth’s surface. Originator defined 13.292483 65.006606 Decimal Degrees LONGITUDE The angular distance east or west from the prime meridian on the earth’s surface. Originator defined -159.776181 145.716048 Decimal Degrees NAICS_CODE The North American Industry Classification System (NAICS) code is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy. Originator defined North American Industry Classification System, 2017 US Census (http://www.census.gov/eos/www/naics/) NAICS_DESC The North American Industry Classification System (NAICS) definition is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy. Originator defined North American Industry Classification System, 2017 US Census (http://www.census.gov/eos/www/naics/) SOURCE Original source used to identify geospatial location and/or attribution for the feature. Frequently used sources include ESRI's World Imagery Service. Originator defined SOURCEDATE Date of the source, or, if not available, the date the originator accessed the source. Originator defined 12/13/2005 07/08/2019 Date VAL_METHOD Methodology used to validate geospatial location of the feature. Originator defined IMAGERY The best available imagery used to determine the location. Originator defined IMAGERY/OTHER Imagery and supplemental open source information used to determine the location. Originator defined OTHER Open source information used to determine the location. Originator defined UNVERIFIED Feature could not be located or the feature has not yet been validated. Originator defined VAL_DATE Date when geospatial location was last validated for the feature. Originator defined 04/14/2014 07/08/2019 Date LINES Number of transmission lines that are linked to the substation. Originator defined 0 30 MAX_VOLT Maximum voltage of all Transmission Lines that feed into the substation Originator defined 3 1000 Kilovolt (kV) MIN_VOLT Minimum voltage of all Transmission Lines that feed into the substation Originator defined 0 765 Kilovolt (kV) MAX_INFER Indicates whether or not MAX_VOLT was inferred using one of the methods outlined in the Process Description. Originator defined Y Voltage was inferred Originator defined N Voltage was not inferred Originator defined NOT AVAILABLE Please see "Entity Type Definition" section Originator defined MIN_INFER Indicates whether or not MIN_VOLT was inferred using one of the methods outlined in the Process Description. Originator defined Y Voltage was inferred Originator defined N Voltage was not inferred Originator defined NOT AVAILABLE Please see "Entity Type Definition" section Originator defined LAT_DD Latitude in decimal degrees. GeoPlan LONG_DD Longitude in decimal degrees. GeoPlan MGRS Military Grid Reference System (MGRS) Coordinate of the Facility. The MGRS is the geocoordinate standard used by NATO militaries for locating points on the earth. The MGRS provides a means to represent any location on the surface of the Earth using an alphanumeric string. Hierarchical references are based on the Universal Transverse Mercator (UTM) coordinate system. The MGRS is used for the entire earth. http://mgrs-data.org/ GeoPlan GOOGLEMAP Webpage hyperlink to location in Google Maps. GeoPlan DESCRIPT Description of substation based on "ELECTRIC SUBSTATION: " & [NAME]. GeoPlan FGDLAQDATE Date FGDL acquired the data from the Source. GeoPlan AUTOID The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. Please see the “Processing Steps” section for further methodology. For string and date data types, NOT AVAILABLE values denote missing data that was not present in the source data. For numeric data types, -999999 denote missing data that was not present in the source data. However, the missing data may be present in other sources not yet discovered and used in the creation and/or maintenance of this dataset. These records may be populated with valid information in future update cycles. Oak Ridge National Laboratory Florida Geographic Data Library (FGDL) mailing

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Gainesville Florida 32611-5706 Web Site: http://www.fgdl.org 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 Vector Digital Data Set (Point) None. No fees are applicable for obtaining the data set. This data is intended for use with a Geographic Information Systems or Remote Sensing software package. 20210729 Oak Ridge National Laboratory mailing and physical

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Oak Ridge TN 37831 US 865-241-3976 865-241-6261 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time