Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida Completed
Due to reduced funding, the May 2009 map will be the last publication of the Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida unless additional funding sources are identified. Water-level elevations will still be measured semi-annually and published in the Annual Data Report as long as funding is available. The Scientific Investigation Map Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida will continue to be published by the FISC-Tampa office.
Abstract
Potentiometric surface maps of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity are published semi-annually as part of a cooperative agreement between the U.S. Geological Survey, St. Johns River Water Management District, South Florida Water Management District, and the Southwest Florida Water Management District. Potentiometric contours are based on water-level measurements collected each May and September at over 550 wells, near the end of the dry and wet seasons, respectively. Some contours are inferred from previous potentiometric-surface maps with larger well networks. The potentiometric surface of the carbonate Upper Floridan aquifer responds mainly to rainfall, and more locally, to groundwater withdrawals and spring flow. Potentiometric-surface highs generally correspond to topographic highs where the aquifer is recharged. Springs and areas of diffuse upward leakage naturally discharge water from the aquifer and are most prevalent along the St. Johns River. Areas of discharge are reflected by depressions in the potentiometric surface. Groundwater withdrawals locally have lowered the potentiometric surface. Groundwater in the Upper Floridan aquifer generally flows from potentiometric highs to potentiometric lows in a direction perpendicular to the contours.
Archived PotMap Data Files
Each file contains contour shapefiles, water-level elevations, and a .pdf file of the published map. Individual map layers are not included. Formats from map-to-map may be slightly different as methods evolved.
September 2006 - May 2009
Maps contain all relevant Metadata.
May 2000 - May 2006
- Some of the early maps may not have complete attribute tables.
- All contours are projected as geographic NAD27, decimal degrees.
- All water-level elevations reference the NGVD29 datum.
| May 2006 | September 2003 | May 2001 |
| September 2005 | May 2003 | May 2000 |
| May 2005 | September 2002 | September 2000 |
| September 2004 | May 2002 | |
| May 2004 | September 2001 |
Below are publications associated with this project.
Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, September 2007
Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2007
Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, September 2006
Potentiometric surface of the Upper Floridan aquifer in the St. Johns River water management district and vicinity, Florida, September 2005
Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2005
Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2006
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2004
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2003
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2003
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September, 2002
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2002
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2000
Below are partners associated with this project.
- Overview
Due to reduced funding, the May 2009 map will be the last publication of the Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida unless additional funding sources are identified. Water-level elevations will still be measured semi-annually and published in the Annual Data Report as long as funding is available. The Scientific Investigation Map Potentiometric Surface of the Upper Floridan Aquifer, West-Central Florida will continue to be published by the FISC-Tampa office.
Abstract
Potentiometric surface maps of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity are published semi-annually as part of a cooperative agreement between the U.S. Geological Survey, St. Johns River Water Management District, South Florida Water Management District, and the Southwest Florida Water Management District. Potentiometric contours are based on water-level measurements collected each May and September at over 550 wells, near the end of the dry and wet seasons, respectively. Some contours are inferred from previous potentiometric-surface maps with larger well networks. The potentiometric surface of the carbonate Upper Floridan aquifer responds mainly to rainfall, and more locally, to groundwater withdrawals and spring flow. Potentiometric-surface highs generally correspond to topographic highs where the aquifer is recharged. Springs and areas of diffuse upward leakage naturally discharge water from the aquifer and are most prevalent along the St. Johns River. Areas of discharge are reflected by depressions in the potentiometric surface. Groundwater withdrawals locally have lowered the potentiometric surface. Groundwater in the Upper Floridan aquifer generally flows from potentiometric highs to potentiometric lows in a direction perpendicular to the contours.
Archived PotMap Data Files
Each file contains contour shapefiles, water-level elevations, and a .pdf file of the published map. Individual map layers are not included. Formats from map-to-map may be slightly different as methods evolved.
September 2006 - May 2009
Maps contain all relevant Metadata.May 2000 - May 2006
- Some of the early maps may not have complete attribute tables.
- All contours are projected as geographic NAD27, decimal degrees.
- All water-level elevations reference the NGVD29 datum.
May 2006 September 2003 May 2001 September 2005 May 2003 May 2000 May 2005 September 2002 September 2000 September 2004 May 2002 May 2004 September 2001 - Publications
Below are publications associated with this project.
Filter Total Items: 19Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, September 2007
This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 2007. Potentiometric contours are based on water-level measurements collected at 554 wells during the period September 15-27, near the end of the wet season. Some contours are inferred from previous potentiometric-surface maps with larger well networAuthorsSandra L. Kinnaman, Joann F. DixonPotentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2007
Introduction This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for May 2007. Potentiometric contours are based on water-level measurements collected at 566 wells during the period May 4-June 11 near the end of the dry season, however most of the water level data for this map were collected by the U.S. GeologicAuthorsSandra L. Kinnaman, Joann F. DixonPotentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, September 2006
Introduction This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 2006. Potentiometric contours are based on water-level measurements collected at 571 wells during the period September 11-29, near the end of the wet season. Some contours are inferred from previouspotentiometric-surface maps with larAuthorsSandra L. Kinnaman, Joann F. DixonPotentiometric surface of the Upper Floridan aquifer in the St. Johns River water management district and vicinity, Florida, September 2005
This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 2005. Potentiometric contours are based on water-level measurements collected at 643 wells during the period September 12-28, near the end of the wet season. Some contours are inferred from previous potentiometric-surface maps with larger well networAuthorsSandra L. KinnamanPotentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2005
INTRODUCTION This map depicts the potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity for May 2005. Potentiometric contours are based on water level measurements collected at 598 wens during the period May 5 - 31, near the end of the dry season. Some contours are inferred from previous potentiometric-surface maps with larger wellAuthorsSandra L. KinnamanPotentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2006
Introduction: This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for May 2006. Potentiometric contours are based on water-level measurements collected at 599 wells during the period May 14-31, near the end of the dry season. Some contours are inferred from previous potentiometric-surface maps with larger well netwAuthorsSandra L. KinnamanPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2004
Introduction: This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity in September 2004. Potentiometric contours are based on water-level measurements collected at 608 wells during the period September 14-October 1, near the end of the wet season. The shapes of some contours have been inferred from previous potentiomeAuthorsSandra L. KinnamanPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2003
No abstract available.AuthorsSandra L. Kinnaman, Leel KnowlesPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2003
No abstract available.AuthorsSandra L. Kinnaman, Leel KnowlesPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September, 2002
No abstract available.AuthorsSandra L. Kinnaman, Leel KnowlesPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2002
No abstract available.AuthorsSandra L. Kinnaman, Leel KnowlesPotentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2000
No abstract available.AuthorsLeel Knowles - Partners
Below are partners associated with this project.