Recharge Areas of the Upper Floridan Aquifer in the St. Johns River Water Management District, 2015

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: St. Johns River Water Management District

Publication_Date: 20150526

Title:

Recharge Areas of the Upper Floridan Aquifer in the St. Johns River Water Management District, 2015

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: http://www.sjrwmd.com

Description:

Abstract:

Groundwater recharge to the Upper Floridan aquifer, as presented in this map, is the replenishment of water in aquifer storage by the downward infiltration of rainfall. The regional geologic structure and the lithologic and hydraulic characteristics of the surficial aquifer, the intermediate confining unit, and the Upper Floridan aquifer determine the areas and rates of recharge to the UFA in the St. Johns River Water Management District.

Purpose:

Maps of groundwater recharge areas are useful planning tools for groundwater resource management. Sections 373.0391, 373.0395, and 373.0397, Florida Statutes, require the water management districts to provide recharge area information to local governments and planning agencies. Recharge areas of the Upper Floridan aquifer in the St. Johns River Water Management District (SJRWMD) were mapped using a geographic information system to analyze the geologic and hydrologic factors that determine recharge.

Supplemental_Information:

A significant amount of water from precipitation is available for UFA recharge as water moves downward through permeable soils and the unsaturated zone into the saturated zone, where it becomes groundwater. The movement of groundwater is in the direction of decreasing hydraulic head. Recharge to the UFA occurs in areas where the SA water table elevation is higher than the UFA potentiometric elevation, resulting in downward hydraulic pressure gradients to move water from the SA, through the ICU, and to the UFA. Relative rates of recharge are dependent on the magnitude of the hydraulic pressure differences, and on the ICU thickness and hydraulic conductivity. Recharge also occurs directly from infiltrating rainfall where the UFA limestones are exposed at land surface or where the limestones are covered by only a thin mantle of siliciclastic sediments. Direct local recharge can also occur where sinkholes and other karst features have breached the ICU. The ICU is composed of the low permeability clay and silt sediments that lie between and that collectively retard the movement of water between the overlying SA and the underlying UFA. The thickness and integrity of the ICU is a significant factor affecting recharge to the UFA. The ICU thickness varies due to geologic structure, depositional history, erosion, and karst development. The fine-grained sediments provide an effective aquitard above the UFA in northern and southern areas of SJRWMD where the ICU is greater than 100 feet thick, resulting in low to very low UFA recharge rates of 1 to 5 inches per year (in/yr) in these areas. The highest rates of recharge to the UFA (greater than 15 in/yr) occur in west-central SJRWMD where the UFA limestones are either exposed at land surface or, more commonly, are covered by a thin layer of sandy or clayey sediments. The UFA is unconfined in these areas, resulting in direct hydraulic connection between the UFA and surface drainage. High to moderate UFA recharge occurs in areas of central SJRWMD where the UFA is thinly confined (ICU thickness of 20 to 50 feet) or semi-confined (ICU thickness of 50 to 100 feet). Relatively higher recharge rates occur where the integrity of the ICU has been compromised by sinkholes and solution pipes and in the higher topographic elevations of the upland ridges that typically have higher hydraulic gradients. The moderate and high recharge areas have recharge rates of 5 to 10 and greater than 10 in/yr, respectively. The UFA limestones are typically not exposed at land surface in the high and moderate recharge areas in central SJRWMD, but their near surface presence is indicated by karst terrain that results as the overlying siliciclastic sediments settle into the irregular and highly soluble limestone rocks. The dissolution of the UFA limestones and the occurrence of closed surface drainage basins with internal drainage result in the development of closed depressions, sinkholes, caves, and other karst features. Closed depressions and sinkholes capture rainfall and surface water drainage and funnel it underground, providing a more direct pathway for UFA recharge.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20150526

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.476797

East_Bounding_Coordinate: -80.301659

North_Bounding_Coordinate: 30.832924

South_Bounding_Coordinate: 27.457403

Keywords:

Theme:

Theme_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus

Theme_Keyword: Upper Floridan aquifer

Theme_Keyword: groundwater recharge

Theme_Keyword: sinkhole

Theme_Keyword: potentiometric surface

Theme_Keyword: surficial aquifer

Theme_Keyword: intermediate confining unit

Theme_Keyword: discharge

Theme_Keyword: water table

Theme:

Theme_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus

Theme_Keyword: evaporation

Theme_Keyword: runoff

Theme_Keyword: geoscientific information

Theme_Keyword: transpiration

Theme_Keyword: environment

Theme_Keyword: inland waters

Theme_Keyword: precipitation

Theme_Keyword: elevation

Theme_Keyword: evapotranspiration

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: elevation

Theme_Keyword: inlandWaters

Theme_Keyword: geoscientificInformation

Theme_Keyword: environment

Place:

Place_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus

Place_Keyword: Volusia Model Area

Place_Keyword: Upper Ocklawaha River Basin

Place_Keyword: Indian River Lagoon

Place_Keyword: East Central Florida Model

Place_Keyword: Lower Basin

Place_Keyword: Lake Apopka Basin

Place_Keyword: Eastcentral

Place_Keyword: St. Johns River Water Management District

Place_Keyword: North East Florida Model

Place_Keyword: Indian River Lagoon Basin

Place_Keyword: Northeast

Place_Keyword: Northcentral

Place_Keyword: North Central Florida Model

Place_Keyword: Northern Basin

Place_Keyword: St. Marys River

Place_Keyword: Northern Coastal Basin

Place_Keyword: Orange Creek Basin

Place_Keyword: Upper Basin

Place_Keyword: Ocklawaha Basin

Place_Keyword: Middle St. Johns River Basin

Place_Keyword: Areas

Place_Keyword: Lower St. Johns River Basin

Place_Keyword: Upper St. Johns River Basin

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)

Place_Keyword: Okeechobee County

Place_Keyword: Duval County

Place_Keyword: Lake County

Place_Keyword: Alachua County

Place_Keyword: St. Johns County

Place_Keyword: Marion County

Place_Keyword: Volusia County

Place_Keyword: Orange County

Place_Keyword: Putnam County

Place_Keyword: Clay County

Place_Keyword: Osceola County

Place_Keyword: Brevard County

Place_Keyword: Flagler County

Place_Keyword: Bradford County

Place_Keyword: Nassau County

Place_Keyword: Polk County

Place_Keyword: Baker County

Place_Keyword: Seminole County

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)

Place_Keyword: Palm Bay

Place_Keyword: Lakeland

Place_Keyword: Melbourne

Place_Keyword: Sebastian

Place_Keyword: Satellite Beach

Place_Keyword: Ocala

Place_Keyword: Winter Springs

Place_Keyword: Sanford

Place_Keyword: Ormond Beach

Place_Keyword: St. Cloud

Place_Keyword: Atlantic Beach

Place_Keyword: Longwood

Place_Keyword: Cities

Place_Keyword: Winter Park

Place_Keyword: Haines City

Place_Keyword: Castleberry

Place_Keyword: Jacksonville

Place_Keyword: Titusville

Place_Keyword: Leesburg

Place_Keyword: Cocoa Beach

Place_Keyword: Winter Garden

Place_Keyword: Orlando

Place_Keyword: Jacksonville Beach

Place_Keyword: De Land

Place_Keyword: Gainesville

Place_Keyword: Alachua

Place_Keyword: Port Orange

Place_Keyword: Ocoee

Place_Keyword: Palatka

Place_Keyword: Kissimmee

Place_Keyword: New Smyrna Beach

Place_Keyword: Tavares

Place_Keyword: Auburndale

Place_Keyword: Altamonte Springs

Place_Keyword: Winter Haven

Place_Keyword: Daytona Beach

Stratum:

Stratum_Keyword_Thesaurus: None

Stratum_Keyword: Hydrogeology

Stratum_Keyword: Subsurface

Stratum_Keyword: Land surface

Access_Constraints: None

Use_Constraints:

The St. Johns River Water Management District prepares and uses information for its own purposes and this information may not be suitable for other purposes. This information is provided ''as is''. Further documentation of this data can be obtained by contacting: St. Johns River Water Management District, GIS Analyst, Bureau of Engineering and Hydrosciences. See Metadata Reference Section of this document for additional contact information.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: St. Johns River Water Management District

Contact_Person: Don Boniol; PG/PE

Contact_Position: Hydrologist,

Contact_Address:

Address_Type: unknown

Address: PO Box 1429

City: Palatka

State_or_Province: Florida

Postal_Code: 32178-1429

Country: US

Contact_Voice_Telephone: (386) 329-4188

Contact_Electronic_Mail_Address: dboniol@sjrwmd.com

Hours_of_Service: 0800 - 1700 EST

Contact_Instructions:

See Metadata Reference Section of this document for additional contact information.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: St. Johns River Water Management District

Contact_Person: Don Boniol; PG/PE

Contact_Position: Hydrologist,

Contact_Address:

Address_Type: unknown

Address: PO Box 1429

City: Palatka

State_or_Province: Florida

Postal_Code: 32178-1429

Country: US

Contact_Voice_Telephone: (386) 329-4188

Contact_Electronic_Mail_Address: dboniol@sjrwmd.com

Hours_of_Service: 0800 - 1700 EST

Contact_Instructions:

See Metadata Reference Section of this document for additional contact information.

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143

Data_Quality_Information:

Lineage:

Source_Information:

Type_of_Source_Media: None

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20050101

Source_Currentness_Reference: ground condition

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 1158

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 HARN UTM Zone 17N

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -81.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000002220024164500956

Ordinate_Resolution: 0.000000002220024164500956

Planar_Distance_Units: meter

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983 HARN

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: GW_Recharge_2015_Polygon

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Id

Attribute:

Attribute_Label: grid_code

Attribute_Definition:

Integer value representing recharge range. 0 - Discharge Area, 1 - Low Recharge: 1-5 in/yr 2 - Moderate Recharge: 5-10 in/yr 3 - High Recharge: greater than 10 in/yr

Attribute_Definition_Source: SJRWMD

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Source: SJRWMD

Attribute:

Attribute_Label: Shape_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: Shape_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: RECH_RANGE

Attribute_Definition:

Discharge Area, Low Recharge: 1-5 in/yr Moderate Recharge: 5-10 in/yr High Recharge: greater than 10 in/yr

Attribute_Definition_Source: SJRWMD

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: St. Johns River Water Management District

Contact_Position: GIS Analyst, Bureau of Engineering and Hydrosciences

Contact_Address:

Address_Type: unknown

Address: PO Box 1429

City: Palatka

State_or_Province: Florida

Postal_Code: 32178-1429

Country: US

Hours_of_Service: 0800 - 1700 EST

Contact_Instructions:

See Metadata Reference Section of this document for additional contact information.

Distribution_Liability: See access and use constraints information.

Custom_Order_Process:

Options: There is no charge for downloading data from the DISTRICT web site at http://www.sjrwmd.com. Data can be ordered on DVD as instructed on the web site.

Metadata_Reference_Information:

Metadata_Date: 20150526

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: St. Johns River Water Management District

Contact_Person: Kevin Mouyard

Contact_Position: GIS Analyst, Bureau of Engineering and Hydrosciences

Contact_Address:

Address_Type: unknown

Address: PO Box 1429

City: Palatka

State_or_Province: Florida

Postal_Code: 32178-1429

Country: US

Contact_Voice_Telephone: 386-239-4550

Contact_Electronic_Mail_Address: gwpsupport@sjrwmd.com

Hours_of_Service: 0800 - 1700 EST

Contact_Instructions:

If Contacts not available; Contact: St Johns River Water Management District, Bureau of Engineering and Hydrosciences.

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time