Revision History for SIM 3091 Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2009 By Sandra L. Kinnaman and Joann F. Dixon ----------------------------------------------------- Posted online August 2009 ----------------------------------------------------- Revised and reposted May 23, 2011 A font issue that interfered with printing the SIM has been corrected. -----------------------------------------------------