Orange County Water Atlas


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Metadata - IconMetadata - Summary of data in the Atlas

The Atlas contains 697 water resources which includes 630 lakes and 67 rivers . Data recorded in the Atlas reaches back 117 years, starting on Monday, January 01, 1900. The most recent data is from Sunday, July 23, 2017. Over 11,169,951 data samples have been included in the Atlas! The samples came from over 61 data sources provided by 24 different data providers. These people and agencies have helped make the Atlas an integral tool for managing our water resources.

Geographic Information Systems Data

Geographic Information Systems (GIS) data consists largely of land mapping and spatial data and is used in a wide variety of fields. The lay of the land can affect almost every aspect of life, including an area's culture, government, environment, and commerce, making GIS information important to everyone. Fields such as anthropology, medical science, and natural science use GIS to measure and predict the impact of geography on a region. By mapping water resources, the Atlas provides spatial information useful to citizens, water management professionals, and scientists alike. The following core datasets are processed as part of geospatial analyses, the results of which are presented directly within Atlas components:

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GIS Dataset Name Data Custodian Data Current as of: More Information
1999 Land-Use and Land-Cover Southwest Florida Water Management District 3/1/2004
2003 Aerial Photography Orange County Not Available
EPA Impaired Waters & TMDL Data US Environmental Protection Agency 10/26/2012
FDEP Impaired Waters & TMDL Data Florida Department of Environmental Protection 10/27/2012
FEMA Flood Insurance Rate Maps (1996) Federal Emergency Management Agency 7/1/2005
FNAI Managed Lands / Conservation Data Florida Natural Areas Inventory 7/7/2014
Major Streets Orange County 7/1/2006
Muncipal Boundaries Orange County 7/1/2006
Orange County Drainage Features Orange County Not Available
Population Density (2000) U.S Department of Commerce 1/1/2000
Population Estimates for Watersheds U.S Department of Commerce 9/15/2011
Roads Orange County 2/22/2007
SJRWMD 2000 Land Use/Land Cover St. Johns River Water Management District 9/1/2003
SJRWMD Bathymetric Maps St. Johns River Water Management District 1/1/2002
SJRWMD Major Basin Delineations St. Johns River Water Management District 5/1/2009
SJRWMD Radar Rainfall Estimates St. Johns River Water Management District Not Available
SWFWMD Radar Rainfall Estimates Southwest Florida Water Management District Not Available
TIGER Census Data Florida Department of Environmental Protection 7/1/2005
United States Census 2000 Block Group Boundaries U.S Department of Commerce 7/27/2006 11:28:59 AM
USGS 1:24,000 National Hydrography Dataset Univ. South Florida Water Institute 9/1/2009
Water Atlas Sample Site Locations Univ. South Florida Water Institute 9/1/2009

Monitoring and Sampling Data

Citizens, scientists, and professionals all contribute to monitoring and sampling data in many ways. Citizens often provide information such as water levels data through volunteer programs. Scientists and professionals set up equipment at sampling stations for measuring attributes such as water quality and hydrology. They provide the data in various formats to the Atlas, which compiles, organizes, and presents the data to help people better understand the county's water resources.

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