|
![]() |
|
| UFDC Home |
myUFDC Home | Help | RSS
|
|

HIDE
| Front Cover | |
| Front Matter | |
| Frontispiece | |
| Letter of transmittal | |
| Preface | |
| Table of Contents | |
| Main | |
| Reference | |
| Back Matter | |
| Back Cover |
ALL VOLUMES
CITATION
SEARCH
THUMBNAILS
PAGE IMAGE
ZOOMABLE
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Full Citation | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
STANDARD VIEW
MARC VIEW
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Table of Contents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Front Cover
Page A-1 Page A-2 Front Matter Page A-3 Page A-4 Page A-5 Page A-6 Frontispiece Page i Page ii Letter of transmittal Page iii Page iv Preface Page v Table of Contents Page vi Page vii Page viii Page ix Page x Page xi Page xii Page xiii Page xiv Page xv Page xvi Page xvii Page xviii Page xix Page xx Page xxi Page xxii Page xxiii Page xxiv Page xxv Page xxvi Page xxvii Page xxviii Main Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 148 Page 149 Page 150 Page 151 Page 152 Page 153 Page 154 Page 155 Page 156 Page 157 Page 158 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 166 Page 167 Page 168 Page 169 Page 170 Page 171 Page 172 Page 173 Page 174 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180 Page 181 Page 182 Page 183 Page 184 Page 185 Page 186 Page 187 Page 188 Page 189 Page 190 Page 191 Page 192 Page 193 Page 194 Page 195 Page 196 Page 197 Page 198 Page 199 Page 200 Page 201 Page 202 Page 203 Page 204 Page 205 Page 206 Page 207 Page 208 Page 209 Page 210 Page 211 Page 212 Page 213 Page 214 Page 215 Page 216 Page 217 Page 218 Page 219 Page 220 Page 221 Page 222 Page 223 Page 224 Page 225 Page 226 Page 227 Page 228 Page 229 Page 230 Page 231 Page 232 Page 233 Page 234 Page 235 Page 236 Page 237 Page 238 Page 239 Page 240 Page 241 Page 242 Page 243 Page 244 Page 245 Page 246 Page 247 Page 248 Page 249 Page 250 Page 251 Page 252 Page 253 Page 254 Page 255 Page 256 Page 257 Page 258 Page 259 Page 260 Page 261 Page 262 Page 263 Page 264 Page 265 Page 266 Page 267 Page 268 Page 269 Page 270 Page 271 Page 272 Page 273 Page 274 Page 275 Page 276 Page 277 Page 278 Page 279 Page 280 Page 281 Page 282 Page 283 Page 284 Page 285 Page 286 Page 287 Page 288 Page 289 Page 290 Page 291 Page 292 Page 293 Page 294 Page 295 Page 296 Page 297 Page 298 Page 299 Page 300 Page 301 Page 302 Page 303 Page 304 Page 305 Page 306 Page 307 Page 308 Page 309 Page 310 Page 311 Page 312 Page 313 Page 314 Page 315 Page 316 Page 317 Page 318 Page 319 Page 320 Page 321 Page 322 Page 323 Page 324 Page 325 Page 326 Page 327 Page 328 Page 329 Page 330 Page 331 Page 332 Page 333 Page 334 Page 335 Page 336 Page 337 Page 338 Page 339 Page 340 Page 341 Page 342 Page 343 Page 344 Page 345 Page 346 Page 347 Page 348 Page 349 Page 350 Page 351 Page 352 Page 353 Page 354 Page 355 Page 356 Page 357 Page 358 Page 359 Page 360 Page 361 Page 362 Page 363 Page 364 Page 365 Page 366 Page 367 Page 368 Page 369 Page 370 Page 371 Page 372 Page 373 Page 374 Page 375 Page 376 Page 377 Page 378 Page 379 Page 380 Page 381 Page 382 Page 383 Page 384 Page 385 Page 386 Page 387 Page 388 Page 389 Page 390 Page 391 Page 392 Page 393 Page 394 Page 395 Page 396 Page 397 Page 398 Page 399 Page 400 Page 401 Page 402 Page 403 Page 404 Page 405 Page 406 Page 407 Page 408 Page 409 Page 410 Page 411 Page 412 Page 413 Page 414 Page 415 Page 416 Page 417 Page 418 Page 419 Page 420 Page 421 Page 422 Page 423 Page 424 Page 425 Page 426 Page 427 Page 428 Page 429 Page 430 Page 431 Page 432 Page 433 Page 434 Page 435 Page 436 Page 437 Page 438 Page 439 Page 440 Page 441 Page 442 Page 443 Page 444 Page 445 Page 446 Page 447 Page 448 Page 449 Page 450 Page 451 Page 452 Page 453 Page 454 Page 455 Page 456 Reference Page 457 Page 458 Page 459 Page 460 Page 461 Back Matter Page 462 Page 463 Page 464 Back Cover Page 465 Page 466 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Full Text | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
5 /2 F -35q c3I revI s ct 07C UNIVERSITY OF FLORIDA LIBRARIES i---- *^-~-- '^ 'C P K YONGE LIBRARY OF FLORIDA HISTORY STATE OF FLORIDA DEPARTMENT OF NATURAL RESOURCES Harmon Shields, Executive Director DIVISION OF RESOURCE MANAGEMENT Charles M. Sanders, Director BUREAU OF GEOLOGY Charles W. Hendry, Jr., Chief BULLETIN NO. 31 (Revised) SPRINGS OF FLORIDA By Jack C. Rosenau, Glen L. Faulkner, Charles W. Hendry, Jr., and Robert W. Hull Prepared by United States Geological Survey in cooperation with the BUREAU OF GEOLOGY DIVISION OF RESOURCE MANAGEMENT FLORIDA DEPARTMENT OF NATURAL RESOURCES and BUREAU OF WATER RESOURCES MANAGEMENT FLORIDA DEPARTMENT OF ENVIRONMENTAL REGULATION Tallahassee, Florida F36q 1977 6^rYb STATE OF FLORIDA DEPARTMENT OF NATURAL RESOURCES Harmon Shields, Executive Director DIVISION OF RESOURCE MANAGEMENT Charles M. Sanders, Director BUREAU OF GEOLOGY Charles W. Hendry, Jr., Chief BULLETIN NO. 31 (Revised) SPRINGS OF FLORIDA By Jack C. Rosenau, Glen L. Faulkner, Charles W. Hendry, Jr., and Robert W. Hull Prepared by United States Geological Survey in cooperation with the BUREAU OF GEOLOGY DIVISION OF RESOURCE MANAGEMENT FLORIDA DEPARTMENT OF NATURAL RESOURCES and BUREAU OF WATER RESOURCES MANAGEMENT FLORIDA DEPARTMENT OF ENVIRONMENTAL REGULATION Tallahassee, Florida 1977 F35 /- no. 3 / 9 77 An infra-red vertical aerial photograph of the Spring Creek area in Wakulla County. Taken in April, 1972 from an altitude of 3,000 feet, the upwelling spring-flow, known as Spring Creek Rise, is easily located because of water temperature differences. The spring shows as the dark circular area just offshore from the end of State Highway 365. .1, Si' i .^ ^.*^ ^ ;" --r"*Lj;~ """ "~r S^-~'; .--1---.^ 1.. .o -" "" .. . . *; .." .. *. ." * -.. r - . T - '''}' ' '* < '* *' - -:,- 'k. : .** ,. .. ', . ,,, ',, ^ ..-,' '- , -..,... ,.s t..."r ,* ** '. ,* * **, . ,%" ". *,t ",* j ..-. .,. N* "- * I r '~ ' 9 4, +] +++ +tj. ~~I~1 -1 / ., "'i *1 " y % +*;/ .v r ,+ }: . ... . ... ., V S r; .. .. ,, . +~~~ i+ ++ r + + + + '., I . ~I 74 f . DEPARTMENT OF NATURAL RESOURCES REUBIN O'D. ASKEW Governor BRUCE A. SMATHERS Secretary of State PHILIP F. ASHLER Treasurer RALPH D. TURLINGTON Commissioner of Education ROBERT L. SHEVIN Attorney General GERALD A. LEWIS Comptroller DOYLE CONNER Commissioner of Agriculture HARMON W. SHIELDS Executive Director LETTER OF TRANSMITTAL Bureau of Geology Tallahassee August 22, 1978 Governor Reubin O'D. Askew, Chairman Florida Department of Natural Resources Tallahassee, Florida 32304 Dear Governor Askew: The Bureau of Geology, Florida Department of Natural Resources is pub- lishing as Bulletin No. 31 Revised, "Springs of Florida," prepared by J. C. Rosenau, G. L. Faulkner, C. W. Hendry, Jr., and R. W. Hull. The first comprehensive report on Florida's springs was published in 1947. Since that time much additional data on our springs have been gathered and is incorporated in this publication. This bulletin not only updates these data but also includes data on previously undescribed springs. This revision represents a major cooperative effort between the U. S. Geological Survey and the Bureau of Geology that has taken several years to complete. It will satisfy a public demand for current information on the nature and occurrence of the springs in Florida. Respectfully yours, Charles W. Hendry, Jr., Chief Bureau of Geology Completed Manuscript received 1977 Printed for the Florida Department of Natural Resources Division of Resource Management Bureau of Geology Tallahassee 1978 iv PREFACE The first comprehensive report of Florida's springs, which contains both a story of the springs and a collection of facts about them, was published thirty years ago (Ferguson and others, 1947). Since then, much additional data on springs have been gathered and the current report, Springs of Flor- ida, makes a wealth of information on springs available to the public. Springs of Florida, prepared by the U.S. Geological Survey in cooperation with the Bureau of Geology, Florida Department of Natural Resources, pub- lishers, and the Bureau of Water Resources Management, Florida Depart- ment of Environmental Regulation, is intended to provide sufficient back- ground information for a lucid understanding of the nature and occurrence of the springs in the State. In accordance with standard practice, referenced reports are cited in the text of this report only by author and date of publication. The report title and publisher are listed in the "References" section of the report. CONTENTS Page Summary and conclusions ---------------------------------------- 1 Introduction ------ --------------------------------------- 2 Spring characteristics ------------------------------------------ 4 Geology and hydrology ------------------------------------------- 12 Geology ---------------------------------------- ----- 13 Hydrology -------------------------------------- --- 19 Water quality ---------------------------------------------- 27 Characteristics of spring water --------------------------------- 27 Definitions of chemical constituents and related terminology -------- 29 Distribution of Florida springs -------------------------------- 38 The hydrologic subregions --------------------------------------- 40 Altamaha- St. Marys Rivers -----------------------------40 St. Johns River ------------- ------------------------ 40 Southern Florida --------------------------------- 40 Peace, Withlacoochee, and Hillsborough Rivers, and western coastal area. ---------------------------------------------------- 42 Suwannee and Aucilla Rivers ------------------------------- 42 Ochlockonee River ----------------------------------------- 42 Apalachicola, Choctawhatchee, and Flint River ------------------ 42 Choctawhatchee, Yellow, and Escambia Rivers ----------------- 45 Spring descriptions --------------------------------------------- 46 Spring names ------------------------------------------ 46 Springflow ---- --------------------------------- 46 Methods of flow measurement ---------------------------------_ 47 Spring-water sampling --------------------------------------- 47 Spring identification numbers ----------------------------------- 48 Descriptions of individual springs --------------------------------- 55 Alachua County ------------------------------------------ 56 Glen Springs -------------------------------------------- 56 Hornsby Spring ----- -------------------------------- 58 Magnesia Spring-------- ---------------__-------- 60 Poe Springs __-----------------------_----------------- 62 Other springs ----- ------------------------- ----- 65 Boulware Spring ----------- --___ ---------------------65 Darby Spring ---------- -----------------------------___ 65 Ford Spring ______---------------- ------------------ 65 High Springs --------------------------------------____ 65 Iron Spring -------------------__----------__---__-___ 65 Sulphur Spring ____------ ---------_----------------__- 65 vi CONTENTS. (Continued) Page Bay County ---- -------------------------------------- 65 Gainer Springs _---------------- -- -------------------- 65 Pitts Spring ------------------------------------------------ 72 Bradford County ------- ------------------------------------ 74 Heilbronn Spring ------------------------------------------- 74 Calhoun County -------------------------------------- 76 Abes Spring ----------------------------------------------- 76 Citrus County ---------------------------- -------------- 76 Blue Spring --------------------------------------------- 76 Chassahowitzka Springs ------------------------------------ 78 Crystal River Springs Group --------------------------------- 80 Tarpon Springs ------------------------------------------ 81 American Legion Spring --------------------------------- 82 Gator Hole ---------- ------------------------------ 82 Idiots Delight ---------------------------------------- 82 Middle Springs --- -------------------------------- -- 82 Shark Sink ---------------------------------------- 82 Homosassa Springs --------------------------------------_ 84 Ruth Spring ------------------------------------------- 89 Other springs -------------------------------------------- 90 Crab Creek Spring --------------------------------------- 90 Potter Spring ----------------------- -------------- 90 Salt Creek Springs -------------------------------------- 90 Unnamed springs -------------------------------------- 91 Clay County --------------------------------------------- 92 Green Cove Spring --------------------------------------_ 92 Wadesboro Spring ----------------------------------------- 94 Other springs ----------------------------------------- 97 Gold Head Branch Springs --------------------------------- 97 Magnolia Springs --------------------------------------_ 97 Pecks Mineral Spring -------------------------------------- 97 Columbia County --------------------------------------- 97 Bell Springs ---------------------------------- 97 Ichetucknee Springs Group ------------------------------------98 Ichetucknee or Head Spring ----------------------------------99 Cedar Head Spring --------------------------------------- 101 Blue Hole Spring -------- -------------------------- 101 Roaring and Singing Springs -----------------------------_ 102 Boiling Spring ------------------------------------------ 102 vii CONTENTS (Continued) Page Grassy Hole Spring _------------------------------------- 102 Mill Pond Spring -------------------------------------- 102 Coffee Spring --------------------------------- ------- 102 Other springs _- ---------------------------------------- 105 Allen Spring ------------------------------------------- 105 Columbia Spring ---------------------------------------- 105 Jamison Spring --------------------------------------- 106 Jonathan Spring ___-_-- ---------------------------------106 July Spring --------- -------------------------------- 106 Northbank Spring ----------------------------------------106 Rum Island Spring -------------------- ---------------- 106 Wilson Spring ---------------- ---------------------- 106 Dixie County ---------------------------------------------- 106 Copper Spring ---------------------- -------------------- 106 Little Copper Spring --------------------------------------- 108 Guaranto Spring ----------------------------------------- 109 Other springs ------------------------------------------- 110 McCrabb Spring -------------------------------------- 110 Escambia County -------------------------------------------- 110 Mystic Springs ------------------------------------------ 110 Other springs ------------------------------------------- 110 Bay Springs -----------------_------------------------- 112 Bluff Springs ---------------------------------------_ -- 112 Jackson's Springs ---------_--_---_----------------------- 112 Gadsden County ------------------------------------------- 112 Chattahoochee Spring -------------------------------___--- 112 Glen Julia Springs ---------------------------------------- 114 Indian Springs ---------------------------------------- 116 Gilchrist County ------------------------------------------- 117 Bell Springs -------_ ---------------------------------- 117 Blue Springs ------------------------------------------- 119 Ginnie Spring ------------------------------------------- 121 Hart Springs ------------------------------------------- 122 Lumber Camp Springs -------------------------------_______ 125 Otter Springs --------------------------------------------- 125 Rock Bluff Springs --------------------__________-----------_ 127 Sun Springs ------------------------------------------------ 129 Other springs ___-----------------_---------____ _______-____ 130 Devil's Eye Springs -----_---------------__-___ __________-__ 130 viii CONTENTS (Continued) Page Lilly Springs --------------- -------------------------- 130 Pleasant Grove Springs ------------------------------------ 131 Townsend Spring -------------------------------------- 131 Gulf County ------------------------------------------ 131 Dalkeith Springs ------------------------------------------ 131 Hamilton County ------------------------ --------------- 131 Adams Spring --------_---------------- ------131 Alapaha Rise ----------------------------------------- 132 Holton Spring ------ ---------------------------------- 134 White Springs -------------------------------------- 135 Other springs ---------------------------------------------- 139 Bluff Cemetery Spring ------------------------------------ 139 Louisa Spring------------------------------------------ 139 Morgan's Spring------------------------------------------ 139 Wesson's Iron Spring -------------------------------------- 140 Hernando County ------------------------------------------ 140 Boat Spring -------------------------------------------- 140 Bobhill Springs ------------------------------------------ 141 Little Springs ------------------------------------------- 143 Salt Spring --------------------------------------- ----- 145 Weeki Wachee Springs ------------------------------- 147 Other springs ------------------------------------------- 149 Blind Springs ---------------------------------------- 149 Mud Spring ------------------------------------------ 150 Unnamed Springs, numbers 1 through 12 _________________ 150-153 Hospital Spring __------------------------------------- 154 Jenkins Spring --------------------------------------- 154 Wilderness Spring -----_-----------------------------_--_ 154 Hillsborough County --------------------------------------- 154 Buckhorn Spring _--------------------------------------- 154 Eureka Springs __ --------------------------------------- 156 Lettuce Lake Spring ---------------------------------------- 158 Lithia Springs ------------------------------------______ 161 Six Mile Creek Spring ----------------------------------- 164 Sulphur Springs ---------------------------------________ 166 Other springs ----------------------------------------- 168 Messer Spring --__--------------____ .......--------------_ 168 Palma Ceia Springs ----------------------_______________ 168 Purity Spring ----------------------------_.-------------_ 168 ix CONTENTS (Continued) Page Holmes County ----------------------------------------- --- 168 Jackson Spring .------------------------------------------- 168 Ponce De Leon Springs -------------------------------------- 169 Vortex Blue Spring ----------------------------------------- 171 Other springs --------------------------------------------- 172 Blue Spring --------------------------------------------- 172 Jackson County ----------------------------------------- --- 173 Black Spring --------------------------------------- 173 Blue Springs -------- ---------------------------------- 174 Blue Hole Spring ------------------------------------- -- 178 Bosel Spring ------------------------------------------- 179 Double Spring ----------------- -------------------------- 180 Gadsen Spring ------------------------------------------ 182 Hays Spring --------------------------------- ------ 183 Mill Pond Spring ---------------------------------184 Sand Bag Spring -------------------------------------- 186 Springboard Spring --------------------------------------- 187 Waddells Mill Pond Spring ---------------------------- 189 Other springs --_------ ---------------------- ------- 189 Daniel Springs ----------------------------------------- -- 189 Tanner Springs --------- ---------------------------- 189 Webbville Spring -------------------------------------- 189 Unnamed Springs --------------------------------------- 189 Jefferson County ------------------------------------------ 190 Wacissa Springs Group ------------------------------------ 190 Horsehead Spring ---------------------------------- 192 Log Springs -------------------------------------------- 192 Thomas Spring ----------------------------------------- 192 Spring No. 1 --------------------------------------------- 192 Spring No. 2 --------------------------------- 192 Allen Spring ----------------------------- --------- 192 Cassidy Spring ---------------- ---------------------- 192 Blue Spring --_---------------------------------193 Minnow Spring ----------------------------------------- 193 Buzzard Log Springs ------------------------------_______ 193 Garner Springs ----------------------- --------------- 194 Big Spring ------- ----------------------------- 195 Other springs --------- --------------------------------_ 197 Walker Springs -----------------------..-----------____- 197 CONTENTS (Continued) Page Lafayette County ---------------------------------------- 197 Allen Mill Pond Spring ------------------------------------- 197 Blue Spring ---------------------------------------- 199 Convict Spring -------------------- ---------------- 201 Fletcher Spring ------------ --------------------- 202 Mearson Spring ------------------------------------------ 204 Owens Spring -------------------------------------------- 205 Ruth Spring ------------ ---------------------------- 207 Steinhatchee Spring -----------------------------------------209 Troy Spring --------------------------------------- 210 Turtle Spring------------------------------------------ 214 Other springs ---------------------------------------------- 215 Iron Spring ------------------------------------------ 215 Perry Spring ----------------------------------------- 215 Lake County ----------------- -------------------- 216 Alexander Springs ----------------------------------------- 216 Apopka Spring ----------------------------------------- 218 Blue Springs ------------------------------------------- 220 Bugg Spring ---------------------------------------- 222 Camp La No Che Spring ----------------------------------- 225 Holiday Springs --- -------------------------------------227 Messant Spring ----- ----------__ -----_ ---_------- 229 Seminole Springs ---------------------------------------- 230 Other springs -- --------------------------------------- 234 Bear Spring ------------------------------------------- 234 Leon County ---------------------------------------------- 234 Horn Spring --------------__----- ---------------------- 234 Natural Bridge Spring --------------_--------------------- 236 Rhodes Springs ----------------------------------------- 238 St. Marks Spring ---------------------------------------- 240 Other springs ------------------------------------------ 243 Unnamed Spring No. 1 ---------------------------------- 243 Unnamed Spring No. 2 ---------------------------------_ 243 Levy County -------------- ----------------------------- 243 Blue Spring ------------------------------------------------243 Fannin Springs ------------------------------------------ 245 Manatee Spring ---------------------------------------_ 248 Wekiva Springs ---------------------------------------- 250 Other springs ----------------------------------------------- 253 xi CONTENTS (Continued) Page Big Springs ____-- --------------------------------------- 253 Little Springs .----- -------------------------------- 253 Liberty County --------------------------------------------. 253 White Springs ---------------------------------------------- 253 Madison County _----------------------------------_-------- 255 Blue Spring _----------------------------------- -------.. 255 Suwanacoochee Spring 2------------------------------------- 57 Other springs _-------------------------------------------- 25 Cherry Lake Spring ------------------- 2---------------.-- 59 Pettis Spring ----------------------- ------------------ 259 Marion County ----------------------------------------------259 Fern Hammock Springs -------------- -------------- 259 Juniper Springs ----------------------------------------- 261 Orange Spring ------------------------------------------ 264 Rainbow Springs------------------------------------------ 266 Salt Springs ------------_--- --------_-------------- 270 Silver Glen Springs ----------------------------------------- 273 Silver Springs ---- -----------------------------------_ 276 Wilson Head Spring -------------------_----_------------ 281 Other springs ----_---------------_--------------------- 282 Blue Spring ----------------------------------------- 282 Sweetwater Springs ______________________________________ 283 Nassau County ------------------------------------------- 283 Su-No-Wa Spring ----------------------------------------- 283 Orange County ------------------------------------------- 286 Rock Springs ------------------------------------------- 286 Wekiwa Springs ------------------------------------------ 288 Witherington Spring --------------------------------_______ 291 Other springs ---------------2-------------------------- 92 Barrel Spring -------------------.___________------------_ 292 Camp Spring ---------------_____ __________--------------- 292 Mill Creek Springs ------_------_____ _________-------------- 292 Pasco County .----------------____ ____________-------------- 293 Crystal Springs --------------------------------------------- 293 Horseshoe Spring ----------------___ _________--------------_ 295 Magnolia Springs -----------------____. .________-----------_ 297 Salt Springs ---------------_______.__________.__..__ q29 Seven Springs __------------------__ ........_-------------- 301 Other springs ------------------------------------... ---..-- 302 xii CONTENTS (Continued) Page lHudson Spring ---.-- -------...-------------- --------- 302 Isabella Spring --. ----------- ------------------------- 303 Salt Spring- ...----------------------------------------- 304 Unnamed Springs, numbers 1, 2, 3, and 5 ----------------- 304 Pinellas County -------------------------------------------- 305 Health Spring .. ------ ----... ---------------.------------ 305 Other spring __-.---.--.-- ------------- ------------------ 307 Phillippi Spring ------ ----------------------------------- 307 Polk County -.---.------------------ .--. ---------------- 307 Kissengen Spring ____-. -------------- ------------------.- 307 Putnam County __--------------------------------------------- 308 Beecher Springs --------------------------------------- --- 308 Forest Springs ..-------------------------------------------- 310 Mud Spring _.-------------------------- -------.-------- 311 Nashua Spring ---------- ----.---------- 313 Satsuma Spring -------- ----------------------------- 315 Welaka Spring ----.------------------------ 317 Whitewater Springs ---------------- -------------------------319 Santa Rosa County------- ------------- 321 Chumuckla Spring --__----------------------------------- 321 Sarasota County --------------- ----------------------------325 Little Salt Spring --------------------------------------- 322 Pinehurst Spring _---------------------------------------- 325 Warm Mineral Springs ______-- __-----------_ ------326 Seminole County ------------- ----------------------------- 332 Clifton Springs -----_----------------------------------- 332 Elder Spring -----------------------------------------------335 Heath Spring --------------------- ----- -- 337 Lake Jessup Spring -----_---------_-----------_----------_ 339 Miami Springs --------- --- ----------------- 340 Palm Springs ----------------------_------------------- 342 Sanlando Springs ---- ------ -----------_ -------341 Starbuck Spring ___ ______------------------_ 347 Other springs ------------------_-----------------__--- 349 Altamonte Springs --------------------------------------- 349 Massin Spring -----_---------------------------------- 349 Seminole Spring --------------_-------------------------- 349 Sweetwater Spring ----------------------------------___ 349 Sumter County -------------------------------- ..-------_ 349 xiii CONTENTS (Continued) Page Fenney Springs ------------------------------------------ 349 Gum Springs -------------------------------------------- 351 Other springs --------------------------------------------- 355 Matahouka Spring ------------------------------------ 355 Warm Springs ------------ ------------------------- 355 Unnamed Springs ---------------------- --------------- 355 Suwannee County ------------------ -----------------------355 Anderson Spring ----------------------- --- 356 Baptizing Spring -------------------------------------------356 Bonnet Spring -------------------------- ----------------357 Branford Springs --------------------- -------- -------359 Charles Springs----------------------------------------- 361 Cow Spring _----------- ------------- ------------------ 363 Ellaville Spring -------------------------- ----------------364 Falmouth Spring --------------------------------------- 366 Lime Spring ---------------------- -------------368 Little River Springs -------- --------------------------- 369 Luraville Springs ----------------------------------------- 371 Peacock Springs ------------------------------------------ 371 Pump Spring ---------------------- -------------------- 373 Royal Spring ------------------------------------------- 373 Running Springs --------------------------------------------375 Suwannee Springs ---------------------------------------- 376 Suwannee Blue Spring ______________________________________ 378 Telford Spring --------------------------_______________ 379 Walker Spring ------------------------------------------ 380 Other springs ------------------------------------------ 381 Betty Spring ----------------------------------------- 381 Ichetucknee Springs Group --------------------------------381 Boiling Spring --------------_________________________ 381 Coffee Spring ----------------------------------------- 381 Ichetucknee or Head Spring ----------------____________ 381 Thomas Spring ---------------------------------------- 381 Taylor County --------------_---------------------------_ 381 Blue Spring -------------------------------____------__ 381 Camp Ground Spring -------------- ---_ _______ 383 Carlton Spring -----------._________------------- _______ ---384 Ewing Spring ---------------------------_____ --______-____ 385 Hampton Springs ------------------------________---_______ 386 xiv CONTENTS (Continued) Page Waldo Springs ------------------------------------------- 388 Other springs ---------------------------------------------- 390 Big Spring ------- ----------------------------------- 390 Blue Spring --------------------------------------------- 390 Iron Spring ------------------------------------------ 390 Sand Piper Spring --------------------------------------- 390 Union Springs -------------------------------------------- 390 Warrior Spring ---------------------------------------- 390 Union County ---------------------- ------------------------ 390 Worthington Spring ---------------------------------------- 391 Volusia County ----------------------------------------- 392 Blue Spring --------------------------------------- 392 Gemini Springs -------------------------------------------- 395 Green Springs ---------------------------------------- 398 Ponce De Leon Springs --------------------------------------- 400 Seminole Spring --------------------------------------- 403 Wakulla County -------------------------------------- 405 Indian Springs ---------- ---------------------------- -- 405 Kini Spring ---------------------------------------- 406 Newport Springs -----_--------------------------------- 409 Panacea Mineral Springs ------------------------------------- 410 River Sink Spring ---------------------------------------- 412 Wakulla Springs -------------------------------------------- 415 Sally Ward Springs ------------------ ---------------_ 416 Walton County ------ -------------------------- 424 Euchee Springs ---------------------------------------- 424 Morrison Spring ----------------------------------------- 426 Washington County ----------------------------_------_-- -428 Beckton Springs ----------------------------------------- 428 Blue Spring (tributary to Econfina Creek) --------------------- 429 Blue Springs (tributary to Holmes Creek) --------_-_-_________ 431 Cypress Spring ---------------------------------------- 433 Walsingham Spring ---------------------------------------- 435 Williford Spring ----------------------------------------- 435 Florida's submarine springs ----------------------------------- 438 Bear Creek Spring -------------------------------------__ 439 Cedar Island Spring ---------------------------------------- 439 Cedar Island Springs --------------------------------------- 439 Choctawhatchee Springs ----------------------------------- 441 CONTENTS (Continued) Page Grays Rise -------------------------------------------- ---- 441 Crescent Beach Submarine Spring ---------------------------- 443 Crystal Beach Spring -------------------------------------- 443 Freshwater Cave ------------ ----------------------------- 443 Mud Hole Submarine Spring _-------------------------------- 443 Ocean Hole Spring ---------------------------------------- 445 Ray Hole Spring -------------------- ------------- --- --- 446 Red Snapper Sink ------------------------- --------------- 446 Spring Creek Springs ---------------------------------- -- 446 Spring Creek Rise ---------------------------------------- 446 Tarpon Springs ---- --------------------------------452 The Jewfish Hole --------------------------------------- 453 Unnamed Spring No. 4 ------------------------------------ 453 Florida's pseudosprings ------------------------------------- 453 Carlsbad Spa Villas ------------------------------------- 453 Hurricane Lodge Motel -------------------------------------- 454 Pennekamp Spring ---------------------------------- 454 Hot Springs ------------------------------------------- 455 Mineral Springs -------------------------------------------- 455 Shangri La Motel Health Resort ------------------------------- 456 Warm Springs Spa ----------------------- ---- --- 456 References --------------------------------------------- 457 ILLUSTRATIONS Text Figure (Photographs) Page 1 Glen Springs viewed downstream from head pool. Flow is controlled to two swimming pools. ----------------------- 56 2 Head of Hornsby Spring looking westward downstream. Spring run in center background. ------------------------ 59 3 Magnesia Spring viewed from southeast. Outlet on right to swimming pool not in use. Present outlet at edge of pool in center background. ----------------------------------- 61 4 Poe Springs viewed from south edge of pool. Spring run in background flows northward to Santa Fe River. ---------- 63 5 Westerly view of Econfina Creek below confluence of run from Gainer Spring No. 1. Clear water from Springs Nos. 2 and 3 show white in photograph on the west side of the creek and Springs Nos. 1A, B, and C on the east side. The tannin-colored water in mid-channel is normal to Econfina Creek and in sharp contrast to the clear spring water feed- ing the creek in this area. ___-----_ ------------------- 67 6 Gainer Spring No. 1C showing the edge of the limestone vent and light spring boil in a swampy wooded area ------ 68 7 View from the run toward the head of Gainer Spring No. 3 and higher ground on the west side of Econfina Creek. __. 69 8 View of Pitts Spring from its south bank. --------------- 73 9 Heilbronn Spring viewed from west in upstream direction. Flow is from under concrete slab. ----------------------- 74 10 Blue Spring viewed from northwest. Note dike in back- ground bounding the pool on south and east. -------------- 71 11 Upstream view of Chassahowitzka Springs from the boat landing area. The spring vent is to the right of the diving platform, against the far shore. ------------------------ 79 12 View of the Crystal River Springs Group and Banana Island from an altitude of 2,000 feet on June 11, 1978. Tarpon Spring is centered in the cluster of boats about 150 ft off- shore, lower-left side of the island. -------------------- 82 13 View of main spring at Homosassa Spring with the "fish- bowl" in the background. ---------------------------_ 87 14 Green Cove Spring viewed from west. Spring in decorative concrete enclosure. ------------------------------------ 92 15 Looking towards the head of Wadesboro Spring. Spring is inside small rectangular concrete enclosure in background and abandoned wooded swimming enclosure in foreground. 95 16 Air view of Ichetucknee Spring from the north. The spring pool is in left-center foreground; it forms the head of Iche- tucknee River, which flows southward through the forest. The parking area is west of the spring. _--------------___ 98 16A Ichetucknee Spring viewed from west. Note boil in pool surface center of picture. -------------_____----------- 99 17 Blue Hole Spring looking southeast over the spring vent. -_ 101 18 Southerly view of Copper Spring No. 1 showing the cypress- studded area typical of the lowland adjoining this part of the Suwannee River. ---------------------------------_ 107 xvii ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 19 Northwesterly view of Guaranto Spring pool from south- east bank. _--.------------------------------------- 109 20 Spring water discharges from two pipes at Mystic springs; one protruding from the lower right corner of an ancient springhouse and the other from a plastic pipe outside (left corner of picture). ----------------------------------- 111 21 A view of the dam and imponded Glen Julia Springs an area of hillside seeps. -------------------------------- 114 22 Southerly view of Indian Spring. ----------------------- 116 23 Looking southwesterly across the main pool of Bell Springs. 118 24 View of Blue Springs from southeast; flight altitude about 500 feet. -------------------------------------- 119 25 View across pool of Ginnie Spring. _------------------- 121 26 Hart Spring. Northerly view across the swimming area towards the smaller of two springs. --------------------- 123 27 Foot-bridges crossing runs at Otter Springs. ------------- 126 28 View of part of large pool of Rock Bluff Springs. -------- 127 29 A view east across Sun Springs. Discharge is to the left. -- 129 30 View of Adams Spring from the northwest. -------------- 132 31 View of Alapaha Rise and its run. ---------------------- 133 32 White Springs from inside the four-story Spring House which was demolished late in 1973. ---------------------- 135 33 Spring House foundation, outdoor swimming pool, the Suwannee River in the background as seen from U.S. Hwy 41. White Springs discharges through the foundation wall directly to the river. ---_------------------------------ 136 34 A view of White Springs discharging from the Spring House foundation wall into the Suwannee River. ---------------- 137 35 Boat Spring in April 1976. View is southwest from spring- head down run. Upwelling water from 10 feet diameter is boiling the surface. ----------------------------------- 140 36 Northerly view of Bobhill Springs. Its vent is at the north end of the pool and the discharge channel is in the fore- ground. The spring vent is covered by a metal grate to prevent swimmer access to the cave system under the pool. 142 37 Southerly view of Salt Spring. View is downstream from the spring; the vent is in line with rope hanging from trees. A boil was visible when this picture was taken in April 1976. 145 38 View of Weeki Wachee Springs from the head of the spring showing boil and river boats. ------------------------- 147 39 View of Buckhorn Spring showing the pumping facilities. Outlet for the spring is to the right side of the picture. .. 154 40 Eureka Spring Tributary 2, looking south down its run. 157 41 Note the boil in Lettuce Lake Spring near the center of the picture. Lettuce Lake Spring is the largest spring in the area. ... __- ----------_-___ --------------_______ 159 xviii ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 42 View of Lithia Springs Major at a low level, October 10, 1972. Bathers are in the turbulent or boil-area of the spring. 161 43 A view of the head of Lithia Springs Minor on October 10, 1972. Water surface is marked by base of sand-bag wall and grass. The wall is to keep sand from slumping into the spring. .-------.------------------------------------ 162 44 A view of hyacinth-choked Six Mile Creek Spring. -------- 164 45 View of Sulphur Springs main pool and its outfall. The building on the right edge of the picture is a city pumping station. The pipe-mounted shelter nearby contains USGS water level recording equipment. The broad crested weir is 10 feet wide and the waterfall about 7 feet high. __------ 166 46 Looking westerly across Ponce de Leon Springs to steps and run. The cement enclosed pool is surrounded by thick forest and swamp. ------------------------------------------- 169 47 A southerly view across Vortex Blue Spring in June 1975. 171 48 Looking southwest over Black Spring from a boat near the center of the pool. The only access to the spring is by boat. The banks are steep and heavily vegetated. -------------- 173 49 View of Blue Spring showing the concrete retaining wall around the pond. The wire fence across the pond is to pre- vent access to the spring by water. The diving platform is on the left side of the picture. ------------------------- 175 50 View north over Double Spring from the south bank. The vegetation in the background is typical of the area sur- rounding the spring. ------------------- ----- 181 50A Looking north toward Gadsen Spring from its run about 90 feet downstream. Note the aquatic vegetation in the run, and the dense vegetation surrounding the spring. _-------_ 182 51 Looking south over Mill Pond Spring from the residential area. The dense foliage in the background is representative of most of the area around the spring. -----------------_ 185 52 Southerly view across Sand Bag Spring toward the house and run. Except for the cleared area around the pool, the adjacent land is heavily forested. ------------_-_----__ 186 53 Southerly view of Springboard Spring from boat launching site on north side of the spring. _---------------------_ 187 54 View of the northern part of Wacissa River from an alti- tude of 500 feet, March 1972. Note the extensive aquatic growth that covers much of the river surface and its associ- ated springs. ----------------------_ .--.-------------_ 190 55 Canoeists leaving the park area at the head of Wacissa River in November 1972. ----------------------------__ 193 56 View of Allen Mill Pond looking towards the run exiting to the southeast. The spring site is surrounded by gently sloping woodland and thick undergrowth. ------------- 198 57 Looking east over Blue Spring towards the run and the Suwannee River. Note the moderately steep sandy banks, limestone bridge, and sparse vegetation around the spring. 200 xix ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 58 Looking east over Convict Spring towards the Suwannee River. ---------------------------------------------- 201 59 View across Fletcher Spring and down its run. Note the steep banks, thick vegetation in the background, and in the left foreground the diving board and slight water surface disturbance from updwelling spring water. --------------- 203 60 Southerly view across Mearson Spring on December 3, 1975, when the Suwannee River was not high enough to restrict spring discharge. ------------------------------------- 204 61 Easterly view over Owens and its run. Note the densely wooded area around the spring, and the extensive limestone outcrop on the perimeter of the pool. ------------------- 206 62 View of Ruth Spring from road, looking northeast. Note the cleared area around the pool, and the dense woods. -------- 208 63 The south side of Steinhatchee Spring. Spring vent outside the wall is at base of rocks at lower-center of picture. _-_ 209 64 Oblique aerial photograph of Troy Spring and Suwannee River from an altiutde of 500 feet. ---------------------- 211 65 A view of Troy Spring showing the submerged hull of the steamboat Madison, its bow pointing towards the head of the spring. Various sources report the ship as either a gun boat or supply ship of the Confederate Army that was trapped on the Suwannee River and was run aground and scuttled by its captain to avoid capture by Union Forces. -_ 212 66 Looking down Turtle Spring run toward the Suwannee River. Spring head is immediately upstream. ------------ 214 67 Alexander Springs viewed to southeast from edge of run. Springhead is in center background and swimming beach is to right. -----------------_------------------ 216 68 Apopka Spring viewed from south. Spring orifice is in center. Floating tree island to right. -------------------- 219 69 Blue Springs viewed from northwest. Note outlet weir in center background. ------------------------------- 221 70 Bugg Spring viewed from south. Spring run in center back- ground. _------------------------------------ 223 71 Camp La No Che Spring viewed from southwest. Spring boil at lower center in photograph. ---------_------------- 225 72 Holiday Springs head pool. ---- --------------- -_ 227 73 View of Messant Spring from southeast edge of pool. Ori- fice is in center just above grass clump. --------------- 229 74 Spring No. 2 of Seminole Springs group viewed from west. Boil in center background. Note suction pipe from stock- water pump. _--------------_____--_____--_________ ___ 231 75 A northwesterly view of Horn Spring across the larger of two springs. Photograph taken from parking area adjacent to sand road. ---------------------------------------- 235 76 View of Natural Bridge Spring from left bank of run, 30 feet below pool. ----- -------------------------- 236 ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 76A Oblique aerial view of St. Marks Spring and River on July 26, 1978 from an altitude of 1500 feet. The spring vent is just lower left of the island. St. Marks Spring is 3,400 feet N. (0.65 mi) of St. Marks Gaging Station and about the same distance south of Natural Bridge Spring. ----------- 240 77 Southerly view of spring and run taken from the north bank. ---------------------------------------- 241 78 Blue Spring viewed from east. Orifice in right center of picture, left of diving platform. Pool outlet in left back- ground. -------------------------------------- 244 79 Westerly view of Big Fannin Spring and its run to the Suwannee River. -------------------------------------- 246 80 Southerly view from head of Little Fannin Spring. -------- 247 81 View of Manatee Spring boil from south edge of the pool. -- 249 82 Wekiva Springs viewed from the south. The largest of the three pools that make up the springs is in the foreground, the smallest is in the center, and the intermediate size pool is to the left, out of the picture. Together with their con- necting channels the three pools form a spring complex within an area of about 150 feet radius. ------------------ 251 83 Northerly view of the lower pool of White Springs. The water is ponded by an earth dam to the left of the recrea- tion buildings. ------------------------------ 254 84 Blue Spring, looking down the spring run. --------------- 255 85 View of Suwannacoochee Spring showing the concrete wall that separates the spring from the Withlacoochee River. -_ 258 86 Fern Hammock Springs viewed from the north. Two circular light-colored areas in left foreground are sand boils in pool bottom. ---- ---------- ----------- ------ 260 87 Juniper Springs viewed from west. Old millhouse in back- ground. --------------------------------- 262 88 Orange Spring viewed from south. Note concrete retaining wall. Outlet in right-center background. ------------- 264 89 View of Rainbow Springs across pool. ------------------- 266 90 Aerial view of Rainbow Springs looking southeast. Head of springs is slightly right of center in photograph. ---------- 267 91 Salt Springs viewed from northwest. Springs are within area bounded by concrete retaining wall. -_----------- 271 92 Silver Glen Springs viewed from east. Spring vent is in center background. ----------------------------------- 274 93 Aerial view of Silver Springs from the southeast. --------- 276 94 Silver Springs viewed from southwest. The main spring orifice is in right-center at right end of aquatorium, the long, low structure on far side of pool. -----------------_ 277 95 Underwater view west from inside cavern at main orifice of Silver Springs. Photograph taken in January 1970 by L. I. Briel. .---------- ----------------------- 278 xxi ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 96 Wilson Head Spring viewed from east. Pool is in center background. Note dike on west and south edges of pool and the wooden, gated outlet in middle foreground. ------------ 281 97 Su-No-Wa Spring viewed from northeast. Spring is in covered cylindrical enclosure to right of pumphouse. -----. 283 98 Head of Rock Springs showing steel protective enclosure. -- 286 99 View of Wekiwa Springs and run. --------------------- 289 100 Looking north at head pool of Witherington Spring. ------ 291 101 View of park and spring from entrance to Crystal Springs. 293 102 Main pool of Magnolia Springs looking downstream, April 1976. ..------------------------- ------------------ 297 103 A westerly view of Salt Springs and part of its run. ------ 299 104 Seven Springs discharge pipe vent. Flow is not known to have occurred since 1960. ------------------------------- 301 105 View of Health Spring and its adjacent swimming pool. --- 305 106 Beecher Springs viewed from north. Pool outlet is in left- center background. ---------------------------------- 308 107 Forest Springs No. 2 is in the center of the picture, viewed from the southwest. ------------------------------------ 310 108 Mud Spring viewed from northeast. Orifice is in center below the surface boil. Gated concrete outlet is visible in background. ---_------------------------------------ 312 109 Head of Nashua Spring viewed from northeast. Flow is west to the St. Johns River, just beyond woods. ---------- 314 110 Looking east upstream at the head pool of Satsuma Spring. 316 111 Head of Welaka Spring viewed from east. The spring orifice is in north part of near open-water area just left of the tree. 318 111A Small reservoir that received the cumulative discharge of the many small springs that make up Whitewater Springs. 320 112 Chumuckla Springs springhouse. Discharge is from the back (right side) of the building. --------------------------- 321 113 Oblique aerial view of Little Salt Spring from an altitude of 1,000 feet. ---------------------------------------- 323 114 Oblique aerial photograph of Warm Mineral Springs from an altitude of 1,000 feet, April 1978. -------------------- 326 115 Underwater photograph of tunnel in Warm Mineral Springs from which the 230 foot water sample was taken. Size of this conduit can be judged by 1 meter measuring stick ex- tending from floor to ceiling. Photo taken by William R. Royal. ----------------------------------------- 328 116 Westerly view of Warm Mineral Springs and small lime- stone dam across its outlet. There is a fall of about half a foot from the spring pool to the run. ------- ___------- 329 117 Clifton Springs run viewed from north looking upstream to the spring pool which is fed by Springs Nos. 1, 2 and 3. --- 333 118 Elder Spring viewed from south. The spring in inside the enclosure. --------------------------------------------- 336 xxii ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 119 Looking west up run of Heath Spring to springhead. ------ 338 120 Lake Jessup Spring, viewed from north, is at the edge of Lake Jessup. The spring is in a depression in the shoreline behind the bunched water hyacinths. --------------------- 339 121 Looking west at head of Miami Springs. Boil is right of center close to the wood retaining wall. _---------------- 341 122 Palm Springs viewed from the north looking downstream. The boil is visible in lower left of the picture and outlet weir in the center. -------------------------------------- 343 123 Looking northwest at Sanlando Springs pool enclosure and adjacent pond. --------------------------------------- 345 124 Starbuck Spring viewed from northwest showing the dam outlet to left and boil in left-center of pool. -------------- 347 125 Looking upstream at head of Fenney Springs. Discharge is west to run in right foreground. ----------------------- 350 126 Spring No. 3 of Gum Springs group viewed from west. Spring orifice is just off end of the dock. ----------------- 352 127 Southwesterly or downstream view of Gum Slough from below Gum Spring No. 6. ------------------------------- 353 128 View towards Anderson Spring, 100 feet northeast and beyond fallen tree. ------------------------------------- 356 129 Bonnet Spring viewed from its southwest side. The clear pool area near the north shore is above the vent of the spring. The trail shown on the north bank is the access route from the road. --------------------------------- 357 130 Branford Springs is a popular recreational location. This view of the main pool is northeasterly towards a parking area beyond and above the spring. ---------------------- 359 131 View of Branford Springs from the top of the south bank of the spring. Two round vents (lower center) are to the left of the small raft. This is in the southeast part of the pool to the right of the swimmers in the other picture. -_ 360 132 A westerly view of Charles Springs looking across the rock bridge and pool toward the run to the Suwannee River. 361 133 A northerly view of Charles Springs showing the limestone bridge that spans the springhead. This photograph and the previous one were taken from the same location southeast of the spring. --------------------------------------_ 362 134 A view south-southwest across Cow Spring. ------------_ 364 135 View from north shore of the Suwannee River. Ellaville Spring is about in the center of the photograph to the right of the railroad trestle. ---------------------------------365 136 Southerly view of Falmouth Spring. -------------------- 366 137 Southeast view of Lime Spring from the northwest side of the pool. ___ _. ___ ___ -----------------------_____ 369 138 View of Little River Springs from its head to the Suwannee River, some 150 feet south. Boil in left-center of the pool. -- 370 xxiii ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 139 Southeasterly view toward the run and the Suwannee River from the southern part of Peacock Springs. -------------- 372 140 Southeasterly view across Royal Spring from a path on west side of the pool. --------------------------------------- 374 141 Running Springs looking north to the River. ------------- 375 142 A view of the northwest corner of the pool at Suwannee Springs. This is the deepest part of the pool. The Suwannee River is just visible in the upper right of the photograph. __ 377 143 View of Telford Spring from its pool to the Suwannee River. 379 144 Northwesterly view across the boil of Blue Spring to cy- press trees in the poorly defined bed of Blue Creek. ------- 382 145 A southerly view across Camp Spring in December 1975. Discharge appears to occur at higher water levels through a small cut, visible in the picture as a break in the bushes in the left background. ------------------------------ 383 146 A westerly view of Carlton Spring. The picture was taken from a concrete remnant of an old bridge. -------------- 384 147 View of Ewing Spring and adjacent Fenholloway River. -- 386 148 The foundation of the once popular Hampton Springs Hotel. The spring water rises from below the foundation and is shown here flowing into the hotel swimming pool. -------- 387 149 Waldo Springs, looking northward to the spring run. ----- 389 150 Worthington Spring viewed from southwest. Spring is in- side a small square concrete and wood enclosure in left- center on edge of abandoned swimming pool. -------------- 391 151 Looking north, upstream at the head of Blue Spring. Note the boil at the water surface near the center of the picture. 393 152 Confluence of flow from the three Gemini Springs. Viewed from the southeast, the photograph shows Springs Nos. 1 and 2 converging from the left and entering the reservoir and the pool of Spring No. 3 on the right --------------- 396 153 Green Springs viewed from the east. The spring is behind the rope stretched from pool steps. Shallow swimming and wading area is in the foreground. ----------------------- 399 154 Ponce de Leon Springs viewed from northeast. An old sugar mill is visible on the left and the spring run in right back- ground. -------------- ---- ---------------________ 401 155 Seminole Spring viewed from north toward Lake Monroe. The spring is in circular concrete enclosure in foreground that opens to the large pool. --------------------------- 404 156 Westerly view across the discharge end of the pool at Indian Springs. --------------------------------------_ 405 157 Southerly view of Kini Spring showing the aquatic growth characteristic of many sinks. The north or spring end of the 270 foot long pool is clear. ----------------------------_ 407 158 Westerly view of Newport Springs from run below flume. -- 409 159 View of pool and pitcher pump at Spring A, Panacea Min- eral Springs. Spring orifice is near center of the pool. ----_ 411 xxiv ILLUSTRATIONS (Continued) Text Figure (Photographs) Page 160 Southerly view of River Sink Spring. Length of the pool is about 280 feet. --------------------------------------- 413 161 Southeasterly aerial view of Wakulla Springs from an al- titude of 4,000 feet on May 14, 1978. The main spring-vent is west of the buildings in the right center of the photo- graph. Sally Ward Spring is at the head of the small stream and pool near the bottom. State Highways 267 and 61 are along the left and bottom of the photograph, respectively. 415 162 View of the main-spring pool area, diving platform and tree-covered area in front of the Wakulla Springs Hotel. -- 421 162A The clarity of the water is illustrated by this oblique under- water view of a diver, the edge of the spring, and the back- ground-tree line, taken from the main vent of Wakulla Springs (position "A" on the proceeding profile of Wakulla Springs). Photographer's depth about 100 feet; tree heights 80 feet. Photography by L. I. Briel, September 24, 1972. -- 423 162B A deeper view from inside Wakulla Springs main vent showing the over hanging arch. Photograph was taken from about 125 foot depth (position "b" on the Wakulla Springs profile) by L..I. Briel on October 10, 1972. --------------- 424 163 Looking upstream from the dam across the lake and toward Euchee Springs. The pipe in the foreground is the overflow to a culvert below the dam where the spring flow was meas- ured. ----------------------------------------- 425 164 Looking across Morrison Spring pool downstream toward the Choctawhatchee River in April 1972. Note the cypress trees and densely wooded area around the spring. --------- 426 165 Looking north from the run across Beckton Springs. Note the dense foliation typical of the area. -----------------_ 428 166 North end of Blue Spring. Main vent and boil are in the shallow part of the spring pool at far side of the steps. --- 430 167 Northeast view of Blue Springs from hilltop about 35 feet above the spring. -----------------------------______ 432 168 Northerly view of Cypress Spring. --------------------- 434 169 Southerly view of Williford Spring showing limestone wall and vent below surface of the water. ------------------- 436 170 Northeasterly view of Cedar Island Spring. The vent is re- ported to be just off the diving board. ------------------- 440 171 Westerly view of Grays Rise, a coastal submarine spring adjacent to Ochlocknee Bay. --------------------- ------ 442 172 (Mud Hole Springs) An oblique aerial view of Mud Hole Submarine Springs. Photograph courtesy of Kent Fanning, Dept. of Marine Sciences, Univ. of South Fla. -----------_ 447 173 Northeasterly oblique aerial view of the Spring Creek area from an altitude of 4,000 feet on May 14, 1978. Shown are State Highway 365, terminating in the coastal village of Spring Creek, and the eight numbered spring sites and three lettered areas of discharge discussed in the text. ---------- 449 174 Pennekamp Spring in October 1968. --------------------_ 454 175 Mineral Springs in May 1964. ------------------------- 455 XXV ILLUSTRATIONS (Continued) Figure Page 1. The hydrologic cycle --------------------------------------- 9 2-9 Maps showing: 2 The Floridan Plateau and its emergent part ------------------ 12 3 The areal extent of the Floridan Aquifer -------------------- 14 4 Mean annual rainfall distribution in Florida ----------------- 20 5 Generalized areas of artesian flow of the Floridan Aquifer in Florida. ----------------------------------------------- 21 6 Areas of non-potable water in the upper part of the Floridan Aquifer. ---------------------------------------------- 22 7 Areas of recharge to the Floridan Aquifer. ------------------ 23 8 Potentiometric surface of the Floridan Aquifer in Florida, May 1974. --- __-------------- ------------ 25 9 Potentiometric surface of the Floridan Aquifer in the Silver Springs catchment area, May 1968. -------------------------- 26 10 Hydrograph showing the interrelation of rainfall, water levels in the Floridan Aquifer, and discharge of Silver Springs. ------ 28 11- 15 Maps showing: 11 Locations of Florida's 27 first magnitude springs. ----------- 39 12 Locations of springs in the Altamaha- St. Marys and St. Johns Rivers Hydrologic subregion. ------------------------------- 41 13 Locations of springs in the Peace, Withlacoochee, Hillsborough Rivers, and western coastal area Hydrologic Subregion. ------_- 43 14 Locations of springs in the Suwannee and Aucilla Rivers Hydro- logic Subregion. __---------- ----------------------- 44 15 Location of springs in the Choctawatchee, Yellow, and Escambia Rivers; Chattahoochee, and Flint Rivers; and the Ochlockonee River Hydrologic Subregions. ------------------------------ 45 16 Graphic explanation of the 15-digit identifier--a spring site numbering system. ________________________________________ 55 17 Location map of Gainer Springs. -------- ------------- 66 18 Location of 30 known springs and sinks in the Crystal River Springs Group. -------------------------- -------- 81 19 Graphs of tidal fluctuations and rainfall at Cedar Key and of discharge of Crystal River. These data illustrate that tidal changes are effective in controlling spring discharge. ---------- 85 20 Map showing the location of Homosassa Springs, the surround- ing area, and chloride concentrations of water at selected sites on Homosassa River and adjacent areas, March 26-27, 1964 (modified from Cherry, Stewart, and Mann, 1970). ---------_ 86 21 Map showing the springs tributary to the Chassahowitzka River. Sections are 1 mi square, in T20S, R17E. ------------------ 91 22 Location of individual springs in the Ichetucknee Springs group. 100 23 Location of individual springs in the Wacissa Springs Group. __ 191 24 Streamflow and water temperature of Wacissa River below Wacissa Springs. ----------------------------------------_ 194 xxvi ILLUSTRATIONS (Continued) Figure Page 25 Semilogarithmic graph of average base flow of St. Marks Spring as measured about 3,400 ft. S. of the spring, 1958-73. --------- 242 26 Location map for springs in the vicinity of Luraville, 15 miles southwest of Live Oak. Included are Baptizing, Bonnet, Lura- ville, Orange, Grove, Peacock, Pump, and Walker Springs. ---- 358 27 Profile of Wakulla Spring, modified by Olsen (1958). --------- 417 28 This graph was developed from stage and streamflow measure- ments made at the gaging station on the Wakulla River at U.S. Hwy 318 bridge on February 2, 1973 and April 11, 1973. The flow of the river on February 11 was about "normal" with respect to the quantity of spring discharge and to the proportion of spring discharge and surface-water runoff. The flow on April 11 was the highest of record. The graph shows that under both conditions, springflow was the major source of the water in the river. ----------------------------------------------- 418 29 The graph, upper left, shows water levels (stage) at Wakulla Springs and at the gaging station on the Wakulla River at the U.S. Hwy. 319 bridge. The graph, upper right, shows rainfall at nearby stations. --------------------------------------_ 419 30 This graph shows the percentage of total streamflow, measured at the U.S. Hwy. 319 bridge, that is discharge from Wakulla Springs. _-----------------------------__-_____ --- 420 31 Map showing the locations of the submarine springs of Florida. 438 TABLES Tables Page 1 Number of first magnitude springs in the United States, by state. _------ ------------------------------ ---------- 5 2 First magnitude springs in Florida. -_---------------------- 7 3 Major springs in other countries. ---------------------------- 8 4 Generalized stratigraphic column related to spring discharge from the Floridan Aquifer. -------------------------------- 17 5 Conversion of temperature scales, Celcius to Fahrenheit. ------ 37 6 Conversion factors for rates of flow. -_--------------------- 47 7 Index to spring identification numbers. ---------------------49-54 xxvii SPRINGS OF FLORIDA By J. C. Rosenau, G. L. Faulkner, C. W. Hendry, Jr., and R. W. Hull SUMMARY AND CONCLUSIONS Florida has 27 first magnitude springs that discharge water from a thick sequence of limestones known as the Floridan Aquifer. Their total average flow is 9,600 cubic feet per second or slightly more than 6 billion gallons per day. Although an accurate world inventory is not available, it seems that Florida's major springs exceed in number and in quantity of water discharged, those of other states or nations. Discharge from all of Florida's 300 known springs is estimated at 12,600 cubic feet per second or 8 billion gallons per day. By comparison, all fresh ground water pumped in 1975 in Florida totaled 3.3 billion gallons per day. Records indicate that the major use of the springs is recreational with little significant change in the past 30 years. Nor has their been any significant state-wide change in springflow, although some springs in populous south Florida do show reduced flow. Few changes since the 1940's appear to have occurred in the quality of the spring water, the springs reflecting the good quality normal to Florida's ground-water aquifers. None were found to be contaminated with pesticides. herbicides, or metals. The Floridan Aquifer is frequently cavernous and a conductor of immense quantities of water throughout most of the state. The rocks of this artesian aquifer system, or ground-water reservoir, are geologically Tertiary in age. The springs are generally concentrated along the major streams and the west coast of the state. The Suwannee River valley has at least 50 springs that are subject to flooding and even to reversal of flow at high river stages. Nine are discharging more than 100 cubic feet per second (first magnitude flow). Spring locations are shown by hydrologic subregion and by numbers utilized for spring identification and computer recovery of filed spring data. The description of over 200 springs include quality of the water data, flow rates, and photographs. Known submarine springs are identified, as are a group of pseudosprings (wells that are commonly and incorrectly identified as springs). "Springs of Florida" is an inventory of an important natural resource. New information was obtained for the report during extensive field travel; and BUREAU OF GEOLOGY data collected through more than 30 years are summarized and included in the spring descriptions. These data are presented for use by scientists, the water manager, and for the casual student of Florida's springs. INTRODUCTION Springs are fascinating and of value to man not only because of their beauty and water-supply potential, but also because of their recreational and reputed medicinal value. Ponce de Leon is said to have sought a spring called the "Fountain of Youth" in the territory that came to be called Flor- ida. The large springs encountered by the early Spanish explorers in Florida must have appeared as immense watery cathedrals. And equally amazing must have been the crystal clear rivers that issued from the cavernous depths of the springs that were teaming with colorful fish, sunning turtles, and alligators. To the Indians, the spring sites offered ideal places for villages, providing food, water, and transportation. Waddells Mill Pond Spring in Jackson County, for example, was reportedly the site of a Chatot Indian village; the once sulfurous water discharging to the Suwannee River at White Springs in Hamilton County has been used as medicinal by white man and Indian; and Little Salt Springs and Warm Mineral Springs of Sarasota County were used by pre-historic man. Countless writers have described Florida's springs as among her principal natural and scenic resources. Some of the larger springs have been developed as tourist attractions: from glass-bottomed boats the depths of springs can be examined through the clear water, and aquatic life can be observed in its native habitat, apparently unaware of the observer. The uniformly comfort- able temperature of the spring water, its clarity, and the underwater cave systems are natural year-round attractions to the swimmer and the scuba diver. As part of their continuing cooperative program, the Water Resources Division of the U.S. Geological Survey and the Florida Department of En- vironmental Regulation, previously the Florida Department of Natural Re- sources, the Water Management Districts, and other state and local agencies collect information on spring flow and water quality. In the section of this report allotted to the descriptions of individual springs, there is given the location, physical description of the spring, and usually a picture of the spring and spring area, spring flow and quality tabulations, and the temper- ature of the water. The springs included represent a comprehensive inventory of those made known to the authors through 1977. There are other springs: some too small to be significant, others that are little known or secreted away in the wood- lands and the marshlands of the state, and many others that lie undetected in the beds of Florida's rivers, in its estuaries, and offshore. BULLETIN NO. 31 For those who have only a passing interest in Florida springs and would ask, for example, why Florida has so many springs and where does the water come from that the springs discharge,,this report will be helpful. Fot those who have.the responsibility for managing water resources and planning for their conservation for future generations, this report will be invaluable: it provides necessary data for such managing and planning as relates to the utilization and preservation of the springs. Records of spring flow and water quality provide a good measure of long-term hydrologic trends. A spring is generally much more representative of the character of a large part of an aquifer than is a well. For the serious student of springs, the report includes an abundance of data carefully collected, analyzed, and presented; hopefully in a format that will make the information easy to read and use. Much of the information on springs of Florida are collected as part of the continuing data program just described. The data-collection activity is mod- ified as needed-springs are added to or deleted from the program as neces- sary, depending on the need for information. The spring data published in 1947 (Ferguson and others) have been substantially updated by this report. A special effort was made to revisit the springs, to check whether the 1947 data are still valid and to visit other significant springs. Data collected sub- sequent to the publication of this report are available in the offices of the Florida Department of Environmental Regulation, the respective Water Man- agement Districts, and the Florida District Office of the Water Resources Division, U.S. Geological Survey. For use of those readers who may prefer to use metric units rather than U.S. customary units, the conversion factors for the terms used in this report are listed below. Multiply U. S. customary unit By To obtain metric unit inches (in) 25.4 millimeters (mm) inches per square mile millimeters per square kilometer (in/mi2) 9.811 (mm/km2) feet (ft) .3048 meters (m) miles (mi) 1.609 kilometers (km) acres 4,047 square meters (m2) acre-feet (acre-ft) 1,234 cubic meters (m3) square miles (mi2) 2.59 square kilometers (km2) gallons (gal) 3.785 liters (L) cubic feet (ft3) 28.32 liters (L) cubic feet (ft3) .02832 cubic meters (ms) gallons per minute (gal/min) .06309 liters per second (L/s) million gallons per day (Mgal/d) .04381 cubic meters per second (m3/s) BUREAU OF GEOLOGY A statistical analysis of Florida's springs was not made to determine their past use in contrast to their present use, nor to determine the quantity of water discharged now in comparison to their aggregate discharge 30 years ago. There is, however, an increasing interest by state and local governments in the purchase of springs and contiguous lands for public use. And there is also a demand by private individuals and organizations for homesites at springs, for their recreational development, for overnight or travel parks near springs, and for large-scale housing projects. An example of the latter is the recent closing off of Peacock Springs in Suwannee County and the development of a 120-acre tract surrounding the springs into 20 homesites (M. Shifflatte, written commun., April 1977). There does not appear to be an overall change in springflow statewide, but in some populated areas of south Florida areas of heavy ground water pumping -springs have gone dry or have shown marked reduction in flow: Kissengen Spring in Polk County and Health Spring in Pinellas County are examples of springs whose flow has ceased. SPRING CHARACTERISTICS A spring is the water discharged as natural leakage or overflow from an aquifer through a natural opening in the ground. The opening may be so small that it yields only enough water to create a wet seep or trickle. On the other hand, the opening and the associated subterranean cavern that is common to Florida may be so large that the spring flow is the source of a large river. Some examples are Silver Run from Silver Springs; Blue Run from Rainbow Springs; Weeki Wachee River from Weeki Wachee Springs; and Wakulla River from Wakulla Springs. This type of ground-water dis- charge is typical of Florida's karst topography a land of numerous sink- holes, caves, springs, and underground drainage through large cavities in the limestone and dolomite rocks underlying the surface soils. O. E. Meinzer classified springs by magnitude, from one to eight, on the basis of their volume of flow or discharge. The following tabulation was modified from Meinzer (1927, p. 3): Magnitude Average Flow (Discharge) 1 100 ft3/s (cubic feet per second) or more 2 10 to 100 ft3/s 3 1 to 10 ft3/s 4 100 gal/min (gallons per minute) to 1 ft3/s (448 gal/min) 5 10 to 100 gal/min 6 1 to 10 gal/min 7 1 pint to 1 gal/min 8 Less than 1 pint/min BULLETIN NO. 31 The United States has about 78 first magnitude springs. Table 1 lists the 9 states that have first magnitude springs, the number's known to exist in each, and the reference from which these data were obtained. The springs discharge from limestone, basalt, or sandstone aquifers. In writing about the springs of Texas, Brune (1975) explains how man's ever-increasing need for water has reduced or stopped the flow of many springs, including two of the four first magnitude springs that Texas had in 1947 (Ferguson, p. 37). According to Brune, the first major effect on the springs of Texas a de- crease in flow- was caused by deforestation of the land by early white settlers. Since then, water use, in all its many forms, has changed even increased the flow of Texas springs. The flow of San Felipe Springs, for example, dropped from an average of 149 ft3/s in 1900 to 22 ft:/s in 1953, then increased to 82 ft3/s in 1971. Goodenough Spring is now (1977) inun- TABLE 1. NUMBER OF FIRST MAGNITUDE SPRINGS IN THE UNITED STATES, BY STATE. State Number Rock type Referencesa Florida 27 Limestone - Idaho 14 Limestone 3, 5 and basalt Oregon 15 Basalt 3 Missouri 8 Limestone 3, 8 California 4 Basalt 3 Hawaii 3 do. 2,6,7 Montana 3 Sandstone 3,4 Texas 2 Limestone 1, 3 Arkansas 1 Basalt 3 a References are listed at back of book. 1 Brune (1975) 2 Hirashima (1967) 3 Meinzer (1927) 4 Moore, L. Grady, U.S. Geological Survey, written commun., January 1977. 5 Ray, Herman A., U.S. Geological Survey, written commun., January 1977. 6 Stearns (1966). 7 Stearns and Macdonald (1946). 8 Vineyard and Feder (1974). dated to a depth of 150 feet by waters of a nearly completed reservoir that appears to be increasing the flow of some springs, including San Felipe Springs, by increasing recharge and by diverting the flow of Goodenough and other inundated springs to San Felipe Springs. If San Felipe regains first magnitude status, Texas will have three the others are Comal Springs and San Marcos Springs. Of the 78 first magnitude springs in the United States, Florida has 27, the most for a single state. Florida seems to have the largest number of springs and also the largest spring in terms of average flow: a submarine spring at Spring Creek in Wakulla County yields about 2,000 cubic feet per second. BUREAU OF GEOLOGY Table 2 lists the first magnitude springs in Florida and figure 11 shows their general locations. Although a complete world inventory of springs and spring- flow is not available, Florida's 27 first magnitude springs appear to exceed in numbers and in quantity of water discharged, those of all countries of the world (table 3). The classification of Florida's springs by Meinzer's magnitude of discharge system is the simplest way to compare spring impact on the water resources of the State. Florida's 27 first magnitude springs are discharging at an esti- mated rate of more than 9,600 cubic feet per second or 6.2 billion gallons per day. Some 300 Florida springs are discharging an estimated 12,600 cubic feet per second or over 8 billion gallons per day, which exceeds the total amount of freshwater withdrawn for all uses in Florida in 1975 by a billion gallons per day. S. D. Leach (1977) summarized Florida's 1975 fresh ground-water pumpage for all uses at 3.3 billion, and total fresh surface water at 3.6 billion gallons per day. About 70 springs are classed as second magnitude, and they discharge about 2,700 cubic feet per second or 21 percent of the total springflow. More than 190 springs are third magnitude or less, and they discharge more than 300 cubic feet per second, or 3 percent of total springflow. Springs also are categorized according to the type of aquifer from which they derive their water. As such there are two general types, water-table and artesian springs. Rain that percolates through e sediments, suc as lately reach a relatively impermeable bed, such as clay. The water then moves down gradient along the top of the impermeable bed to a place of outcrop where the water issues as a spring or seep. This is a water-table or non-artesian type spring. In Florida their flow is normally small and variable. Where water is confined in permeable sediments beneath impervious confining beds, and is under sufficient hydrostatic pressure to rise to the surface through a natural breach in the confining beds, an artesian spring is formed. Most of Florida's large springs are of this type, as are many of the smaller ones. (fig. 1). Florida has numerous artesian submarine springs along its coasts (fig. 17). Where the yield of a submarine spring is great enough, it creates a "slick" or "boil" at the water surface thus identi- fying the spring location. Submarine springs are known to exist on the Atlantic Coast, offshore at Crescent Beach; and on the Gulf Coast, offshore of Aripeka and from Lee to Wakulla counties. Springs may be classed in many other ways, including chemical char- acteristics if, for example, their waters are salty or sulfurous; by tempera- ture nonthermal or thermal, and thermal springs may be "warm" or "hot"; or by the type of opening through which the water surfaces seep- age, tubular, and fracture. BULLETIN NO. 31 TABLE 2-- The 27 fi g of Florida--with d discharge and representative temperatures and dissolved solids--known through December 1976. Spring and number by county Period Discharge (refer to figs. 11-15, of Average Range and 17) record (ft3/s) (ft3/s) Alachua County 9. Hornsby Spring 1972-75 163 76- 250 Bay County 1. Gainer Springs 1941-72 159 131- 185 Citrus County 2. Chassahowitaka 1930-72 139 32- 197 Springs 4. Crystal River 1964-75 916 (1) Springs 5. Homosassa Springs 1932-74 175 125- 257 Columbia County 4. Ichetucknee 1917-74 361 241- 578 Springs Hamilton County 3. Alapaha Rise 1975-76 608 508- 699 4. Holton Spring 1976 288 69- 482 Hernando County 19. Weeki Wachee 1917-74 176 101- 275 Springs Jackson County 3. Blue Springs 1929-73 190 56- 287 Jefferson County 1. Wacissa Springs 1971-74 389 280- 605 Group Lafayette County 11. Troy Spring 1942-73 166 148- 205 Lake County 1. Alexander Springs 1931-72 120 74- 162 Leon County 2. Natural Bridge 1942-73 106 79- 132 Spring 4. St. Marks Spring 1956-73 519 310- 950 Levy County 3. Fannin Springs 1930-73 103 64- 139 5. Manatee Spring 1932-73 181 110- 238 Madison County 1. Blue Spring 1932-73 115 75- 145 Marion County 5. Rainbow Springs 1898-1974 763 487-1,230 7. Silver Glen 1931-72 112 90- 129 Springs 8. Silver Springs 1906-74 820 539-1,290 Suwannee County 8. Falmouth Spring 1908-73 158 3d0- 220 Volusia County 1. Blue Spring 1932-74 162 63- 214 Wakulla County 2. Kini Spring 1972 176 - 5. River Sink Spring 1942-73 164 102- 215 6. Wakulla Springs 1907-74 390 25-1,910 13. Spring Cre ,4) 1972-74 2,003 (1) Springs (1) Tidal affected (2) Continuous record, vane gage (3) Reverse flow of 365 ft3/s measured on 02-10-33. (4) See figure 17. Average Number water uissolved of temperature solids measure- C F (mg/L) ments 2 7 81 (2) 90 375 4 3 364 10 20 4 13 5 130 8 9 6 402 11 155 8 360 1 6 276 22.5 73 22.0 72 22.5 73 19.0 66 23.5 74 21.0 70 20.5 .69 22.0 72 23.5 74 20.0 68 20.5 69 22.0 72 22.0 72 21.0 70 23.0 73 23.0 73 23.0 73 21.0 70 23.0 73 20.0 68 20.0 68 21.0 70 19.5 67 of... Flrd-wt ro frcr I~1L ` BUREAU OF GEOLOGY TABLE 3 MAJOR SPRINGS REPORTED IN OTHER COUNTRIES. Average Discharge Spring Country (fts/s) Rock Type Referencea Ras-El-Ain Syria 1,370 Limestone 1,2 Stella Spring Italy 1,290 do. 6 Rio Maule Spring Chile 1,000 Basalt 2 Fontaine de Vaucluse France 800 Limestone 3,6 Timaso Spring Italy 800 do. 5 Komishimigawa Japan 700 Basalt 5 Ain Zarka Syria 490 Limestone 5 Sinn River Syria 430 do. 5 El Gato Mexico 185 Basalt 4, 7 Lanza Bolivia 135 do. 5 a References are listed at back of book. 1 Burdon and Safadi (1963). 2 Davis and DeWiest (1966, p. 63, 367-369). 3 Meinzer (1927, p. 91-92, 94). 4 Thomas (1975). 5 Thomas, H. E. (written commun., October 1974). 6 Vineyard and Feder (1974, p. 14). 7 Waring (1965, p. 61). The natural flow of springs is controlled by hydrologic and geologic factors, such as amount and frequency of rainfall, the porosity and perme- ability of the aquifer, the hydrostatic head (pressure) within the aquifer, the hydraulic gradient and, in the case of artesian springs, to a lesser degree to influences outside the aquifer, such as atmospheric pressure systems and oceanic tides. The flow of springs is also changed, usually decreased, by man through such means as pumping from wells that tap the aquifer. Fortunately, Florida has sufficient rainfall distributed through the year to keep its aquifers recharged sufficiently to maintain perennial flow at most artesian springs. Though the State does experience water-supply problems in some areas where ground-water withdrawal is excessive, this condition is the exception, and variations in discharge rates of artesian springs have been remarkably small. The flows of large springs may be substantial even through periods of drought. This is understandable when the large volume of water stored in Florida's artesian aquifer system is compared with the relatively small discharge of its springs. The aggregate discharge from all the artesian springs is not enough to deplete the aquifer between periods of recharge. On the other hand, the variations in flow of water-table springs may be great in response to rainfall variations and may cease flowing in the dry season be- cause of the relatively small size and low storage capacity of many water- table aquifers. The openings or voids in the rock through which ground water moves may vary in size and relation. They may be as small as the original pore WINDS SOLAR i",' 7/7l RADIATION PRECIPITATION ///// I EVAPORATION AND TRANSPIRATION -L~SLj EVAPORATION '-.- - '--, -S'..B. > a- W ,, I .. .. Os... ......... POTENTIOMETRIC k .... .- ... SURFACE FLORIDAN AQUIFER I I I I I I I ILLUSTRATION NOT TO SCALE FIGURE 1. -The hydrologic cycle. BUREAU OF GEOLOGY spaces between the grains that make up the rock or as large as the sizeable caverns that result from dissolution by circulating water. The size of the pore spaces or caverns extending from the spring vent back into the aquifer and the degree of interconnection (permeability) among the void spaces are con- trolling factors in spring flow. Another influence on the amount of flow from springs is the differential between the hydrostatic head at the spring vent and that in the recharge or replenishment area. Closely related to the head is the hydraulic gradient or degree of slope of the water-table in an unconfined aquifer or of the potentio- metric (pressure) surface of an artesian aquifer. Both the head differential and gradient are governed by the differences in elevation between recharge and discharge areas and on the permeability of the aquifer. The influence of atmospheric pressure system ond oceanic tides are minor but may affect the yield of artesian springs. High atmospheric pressure sys- tems and high tides load and thereby compress the aquifer. This compression tends to decrease the pore space and to force water out of the aquifer, thus increasing spring yields slightly. Where high tides or high river stages inun- date a spring vent, spring flow is decreased, may be temporarily shut off, or the spring may take water as happens along the Suwannee River. Man, in supplying his water needs, can have catastrophic effect upon the flow of springs. Large water withdrawals from wells near a spring can re- duce pressure in the aquifer to a level below the spring orifice, thus stopping its flow. Subsequently, if withdrawal is reduced sufficiently, a spring may start to flow again. For example, Kissengen Spring near Bartow in Polk County stopped flowing after some nearby wells that tap the same aquifer as the spring began to be heavily pumped. When pumping ceased for several months, the flow of Kissengen Spring resumed, only to cease once more when the wells were again pumped. Ground water continually moves from points of replenishment to points of discharge. In Florida, natural discharge occurs to other aquifers, to the Atlantic, the Gulf, to streams, lakes, from seeps, and springs, and man causes discharge through the pumping of water from wells. Ground water is not in dead storage in the aquifer; circulation of water in the ground causes dissolution of the host rock, mostly carbonates (limestone and dolomite) in Florida, and this material becomes a chemical constituent of the water. Be- cause water from the carbonate Floridan Aquifer contains relatively large quantities of dissolved material, it is considered hard compared to water in the surface streams and noncarbonate aquifers in Florida. Ground water issuing as springs is usually clear and clean because of the filtering and absorbing action of the soil and aquifer materials that the water passes through. Some springs, however, may have turbid or brown, organic BULLETIN NO. 31 colored water typical of many surface waters in Florida. Where turbid water or the brown tannic acid water common to swamps recharges an aquifer in proximity to a spring, the water may move quickly through solution channels in the aquifer to discharge at the spring vent little altered in quality. For this reason, it is not uncommon to note "swamp water" discharging from some springs in Florida, especially following heavy rainfall. A few spring waters having relatively high dissolved solids concentrations have a whitish cloudy appearance, possibly the result of precipitation from rapid pressure or temperature changes when discharged. Many Florida springs are bluish, carrying such names as Blue Spring or Blue Hole. The blue color is charac- teristic of clear water in large quantities, as is true for air in large quantities, and is not due to any particular impurities. A striking characteristic of spring water is that it seems cold in the sum- mer and warm in the winter. This is not the result of a change in water temperature but the difference between air and water temperatures. The temperature of spring water varies only a few degrees; even among springs the temperature variation is small as the following tabulation illustrates: Approximate Average Range Temperature (in *C) (C) (OF) North Florida 19 to 23 21 70 Central Florida 22 to 26 24 75 South Florida 27 to 31 29 84 Spring water is at or near the temperature of the aquifer, which in tie case of shallow aquifers is at or near the average annual air temperature of the particular area. Spring waters from deeper aquifers tend to have higher temperatures. Water temperatures of a few springs in Florida are appreciably higher than others in the state. The geothermal gradient for ground water, that is. the rate of increase in temperature with depth, is about 1 degree Fahrenheit per 65 feet of depth (Collins, 1925, p. 98) or 1 degree Celsius per 100 feet, although there are exceptions to the rule. The warm springs, such as those in Sarasota County, derive their water from deep formations due to an abnor- mality of the host rock such as a fault or fracture which allows this warm deep water to rapidly reach the surface. Though Florida spring water is normally hard compared to surface or non-carbonate aquifer water, it is not as mineralized as the ground water in older and deeper rocks. Sodium chloride (common salt) is the principal mineral contributing to high mineralization. Highly mineralized water has been obtained from deep wells beneath all of Florida. BUREAU OF GEOLOGY GEOLOGY AND HYDROLOGY That Florida has many springs, some of large size, is the direct result of the particular combination of geologic and hydrologic factors that prevail in the State. Following is a discussion of the geology and hydrology of Florida, to the extent that these relate to the occurrence of these many springs. Florida is the emergent part of a large platform, called the Floridan Plateau (fig. 2), that projects southward from the continental mass and sepa- rates the deep water of the Atlantic Ocean from that of the Gulf of Mexico. FIGURE 2. The Floridan Plateau and its emergent part, Florida. The Ocala Uplift, also shown, has an important influence on spring oc- currence in the state. BULLETIN NO. 31 The Floridan Plateau is composed of several thousand feet of nearly flat-lying limestone and dolomite strata that are veneered with sand, clay, limestone, and mixtures of these that are as much as several hundred feet thick. These sediments were deposited mostly in a shallow-marine environment and, for the most part, are not intensely lithified nor have they undergone intensive deformation. The Ocala Uplift, an important surface structural feature affect- ing the occurrence of many of the springs in Florida is shown in figure 2. The upper part of the limestone and dolomite rocks of Florida constitutes a part of a very extensive and productive ground-water reservoir identified by V. T. Stringfield (1966) as the Principal Artesian Aquifer of the south- eastern United States. Stringfield (1936) originally described this hydrologic system and Parker (1946) redefined and named that part of the system in Florida, the Floridan Aquifer. The Principal Artesian Aquifer underlies all of Florida and extends be- neath parts of Alabama, Georgia, and South Carolina (fig. 3). A substantial part of the sediments veneering the Floridan Aquifer, though porous and permeable in part, is relatively impervious and serves to confine, under pres- sure, the water in the Floridan Aquifer over much of its areal extent. The Floridan Aquifer supplies all the first magnitude springs in Florida (see table 2) and most of the smaller ones. Permeable parts of the sedimentary veneer are of local extent and in places supply small springs. GEOLOGY As a background for a discussion of Florida springs, a description of the nature and attitude of the rocks from which springs flow is important. The number, size, and location of Florida springs is intimately associated with the stratigraphy and structure of the rock formations. For example, more large springs are located near the Ocala Uplift (fig. 2) than elsewhere in Florida. The Ocala Uplift is the name applied to the structurally high Tertiary strata in the northwest part of peninsular Florida. As the uplift evolved, the clastic-sediment veneer on the uplift was deposited more thinly and was more readily eroded than elsewhere in Florida. These factors left exposed or nearly exposed at the surface the carbonate bedrock that comprises the Principal Artesian or Floridan Aquifer. Florida, though devoid of high altitudes and great relief, does vary in altitude somewhat, from the very low, nearly flat, terraced coastal plains to the high rolling hills of the interior. On the peninsula, the interior ridges reach a maximum of 310 feet above sea level at Sugarloaf Mountain in southern Lake County. The ridges do not extend south of Lake Okeechobee, and so the southern tip of Florida is a low, almost featureless plain. Relief BUREAU OF GEOLOGY ALABAMA EXPLANATION -i AREAL EXTENT OF STHE FLORIDAN AQUIFER (MODIFIED FROM COOPER, 1953 FIGURE 3.- The areal extent of the Principal Artesian Aquifer. That part in Florida is called the Floridan Aquifer. BULLETIN NO. 31 within the coastal plain usually does not exceed a few feet, whereas in the higher inland areas relief is a few tens of feet, commonly more than 100 feet. In northwest Florida, the highlands are on the average about 30 miles inland from the coast. Surface altitudes range from sea level at the coast to a maximum of 345 feet above sea level in Walton County, near the Florida- Alabama state line. The high interior ridges of the peninsula are the erosional remnants of deposits laid down during the Pleistocene (ice-age) marine inundations of Florida. The ridges are primarily composed of loose quartz sands with small amounts of clay occurring as a matrix and locally as clay beds. These plastic sediments, where they are sufficiently permeable, constitute water-table or unconfined aquifers. Where the permeablity is low, owing to a high clay content, they serve, along with underlying poorly permeable beds of Miocene and Pliocene age, as confining beds atop the artesian Floridan Aquifer. Throughout the Tertiary Period, the Floridan Plateau was a shallow marine shelf upon which widespread deposits of chemically precipitated limestone and dolomite, along with the shells and shell fragments derived from the teeming marine life, were laid down. This deposition of very pure calcium and magnesium carbonate continued through early Tertiary time into the late Tertiary. At the beginning of the Miocene Epoch, ever in- creasing amounts of sand, silt, and clay were transported into Florida by the numerous river systems from the neighboring Appalachian Mountains to the north. These terrestrial plastics were intermixed with the upper Tertiary marine limestone deposits and by late Miocene time the elastics were the dominant type of deposit. Thereafter, in most of Florida, the predominant carbonate deposited was in the form of shells with minor amounts of chem- ical carbonate precipitate deposited with clay to form marl. In northwest Florida, from the Chocktawhatchee River westward, sedi- ments are predominantly elastics and both these and the underlying limestone of the Floridan Aquifer slope gently downward and westward into the Mis- sissippi Embayment. Southward from the Ocala Uplift the limestones of the Floridan Aquifer also become progressively lower, so that in the southern part of the State, the aquifer is deeply buried beneath post-Oligocene elastic sediments. The great depth to the Floridan Aquifer in south Florida and westward of central Walton County effectively eliminates the occurrence of Floridan Aquifer springs in those areas. Water-table springs exist in these places, however, although many of them in south Florida no longer flow owing to the lowered water table resulting from many years of heavy ground-water draft. BUREAU OF GEOLOGY In south Florida are some "pseudosprings" or false springs, however. These are old, deep artesian wells, no longer used, whose casings have rusted away, so that today they appear to be, or are labeled as, artesian springs. The locations of Florida's pseudosprings are described in some detail in that sec- tion of the report labeled "Pseudosprings." The Floridan Aquifer consists of limestone and dolomite older than middle Miocene age and younger than early Eocene age. Table 4 is a generalized Tertiary stratigraphic column that shows the vertical position of the Floridan Aquifer in Florida. The Ocala Group" (table 4) is the principal water- bearing stratum in much of western peninsular Florida and in much of western peninsular Florida; in the "Big Bend" and southwest peninsular areas, the Suwannee and St. Marks Limestones are the principal aquifers; and in the Jackson-Washington-Holmes County area (Vernon and Puri, 1964) the Marianna Limestone is the principal one. Other formations that are important parts of the Floridan Aquifer are the Lake City and Avon Park Limestones of middle Eocene age in western peninsular Florida; and the Chattahoochee", Chipola, and Hawthorn Formations of early and middle Miocene age in north and southwest Florida. For a more detailed discussion of the Floridan Aquifer, see Stringfield (1966, pp. 95-98). The Hawthorn Formation plays a dual role in that in some areas its lower part is composed of permeable carbonate beds (aquifer) and the upper part is composed of impermeable plastics (confining beds). Where present in the Hawthorn, the clay, marl, and less porous impure limestone of Miocene age and younger serve an important role as the impervious beds that bound the upper surface of the Floridan Aquifer and confine the water in the Floridan Aquifer under pressure. The quantity of water present in the aquifer depends on the porosity of the rock, that is, on the volume of the spaces or pores or cracks between the solid rock particles. Porosity may be categorized as intergranular porosity (between grains) or as macroporosity, a more gross feature related to solu- tion or fracturing (cavities, cracks, etc.) of the aquifer rock. "The name used by the Florida Bureau of Geology to include three forma- tions, from older to younger: the Inglis Formation, Williston Formation, and Crystal River Formation. The equivalent terminology used by the U. S. Geo- logical Survey is Ocala Limestone, which is divided into an upper and a lower member. The lower member is approximately equivalent to the Inglis and Williston Formations, whereas the upper member is approximately equiv- alent to the Crystal River Formation. bThe U. S. Geological Survey uses Tampa Limestone instead of Chattahoochee Formation. BULLETIN NO. 31 After deposition, sediments undergo reduction of initial pore volume through compaction, which may be followed by induration or lithification of the sediments by cementation, further reducing the porosity. Most of the rocks that make up the Floridan Aquifer are poorly indurated so that sub- stantial primary porosity remains. Some limestone strata within the aquifer have, however, undergone chemical and physical changes through partial dolimitization and recrystallization. This alteration generally results in yet a further decrease in intergranular porosity a condition of secondary porosity. So that water can move through the rock, pore spaces, cavities and cracks must be connected; the rock must have porosity and permeability. An aquifer TABLE 4.--General stratigraphic column related to spring discharge from the Floridan Aquifer. HOLOCENE AND QUATERNARY PLEISTO- SAND, CLAY, GRAVEL, PEAT, AND CARBONATE SCENE DEPOSITS UPPER MIOCENE CLAYS AND CLASTICS MIOCENE CHIPOLA AND HAWTHORN FORMATIONS CHATTAHOOCHEE AND ST. MARKS FORMATIONS SSUWANNEE LIMESTONE AND OLIGOCENE MARIANNA LIMESTONE z o CRYSTAL RIVER FORMATION 0 EOCENE LIMESTONES WILLISTON FORMATION OF OCALA TNGLIS FORMATION GROUP AVON PARK LIMESTONE LAKE CITY LIMESTONE OLDSMAR LIMESTONE PALEOCENE CEDAR KEYS LIMESTONE BUREAU OF GEOLOGY that yields large amounts of water to springs (as much as several million gallons per day) is very porous and permeable. Of the two kinds of porosity cited earlier, it is macroporosity (the caverns and cavities) on which the tremendous flow of some of Florida's springs depend. A spring connected to a cavernous limestone may have a large flow depending on the hydraulic gradient. How these caverns were formed is interesting. Limestone, only slightly soluble in pure water, is easily dissolved in water that contains carbon di- oxide, because carbon dioxide and water produce carbonic acid. Carbon dioxide is derived from rain falling through atmosphere and from the soil in which carbon dioxide is produced by plant respiration and organic de- composition. Solution of limestone by natural waters in which carbon dioxide is dissolved is the principal cause of cavities and caverns found in carbonate rocks. As with porosity, permeability of a rock is classed either as primary or secondary. Primary permeability results from the interconnection of the original pore spaces remaining between the individual grains of the rock after deposition. The primary permeability of limestone depends on the size and shape of the rock grains. As most Florida limestones contain a high per- centage of shells and microfossil tests, their primary permeability is high. As with porosity, primary permeability is frequently reduced or destroyed by the processes of dolomitization and recrystallization. Secondary perme- ability, as in the case of macroporosity, develops from the solution of the rock by water containing carbon dioxide. The extent to which secondary permeability has developed usually determines the usefulness of limestone as an aquifer. Dissolution occurs chiefly along joints, fractures, and bedding planes, as well as along zones which had sufficient primary permeability to permit circulation of water. These openings may range from only a slight increase in the original interstitial openings, through etching of individual mineral grains, to solution cavities several feet or even several tens of feet across. Because solution activity tends to concentrate in zones of the greatest ground-water circulation, the limestone along fractures, joints, and bedding planes may be very permeable while surrounding rock may be comparatively impermeable. Solution along the contact between beds of differing solubility may result in a zone of cavities and high permeability that is sheet-like in form. In describing this action in Florida, Vernon says, "The heavy rainfall, prolific decaying vegetation in Florida and the low evaporation and agitation in these confined reservoirs cause the artesian waters to be heavily charged with organic acids and acid-forming gases. The solution of limestone aquifers in Florida is therefore active and rapid. In fact, the gentle dip of the beds, BULLETIN NO. 31 the high purity and inherent porosity of the carbonate rocks, the flat sand- covered divides between relatively few surface streams, the dense vegetation and humid climate, the relatively high relief and the active circulation of artesian waters all combine to create in Florida the most favorable conditions for the active solution of carbonate rock by water" (Ferguson and others, 1947, p. 20). HYDROLOGY Some of the rain that falls on Florida and upon the immediately adjacent parts of adjoining states (fig. 4) collects in lakes or surface-water courses and flows as rivers and streams to the sea. Some evaporates from free water surfaces and some transpires from plants all to return to the atmosphere. Another portion of the rainfall infiltrates the ground to replenish the aquifers from which virtually all the State's freshwater supply is obtained. It is this - the infiltrating water- that keeps Florida's springs flowing year after year; to cease or to be reduced only by drought or if large quantities of water are pumped from the aquifer in the vicinity of the spring, or if major construc- tion in the vicinity of the spring disrupts the spring's hydraulic balance. Water in the ground-water reservoir occurs under either confined or un- confined conditions. When ground water is not confined under pressure, it is said to occur under water-table conditions. The water-table aquifers are re- charged locally and the water table fluctuates rapidly in response to rainfall. That is, with rainfall the water table rises. The height at which water stands defines the water table, which is the top of the zone of saturation or the zone in which all pore spaces are filled with water. The shape of the water table is usually a subdued replica of the profile of the land surface. Ground water under the influence of gravity continually moves downgradient, that is, in the direction that is the downward slope of the water table; and from areas of recharge to discharge. In the discharge area, where the water table inter- sects land surface, ground water will discharge at the surface to form a spring or seep (fig. 1). Likewise, if the water table intersects a stream channel at an altitude equal to or higher than the water level of the stream, ground water will flow or seep into the stream channel and add to the flow of the stream. Water-table aquifers in Florida are generally made up of Holocenc and late Tertiary sands exposed at the surface. Some older strata, including lime- stone beds of the Floridan Aquifer that are near the surface or not covered by confining beds, also contain water under water-table conditions. Some ground water moving downgradient in unconfined aquifers enters aquifers that are or become confined further downgradient by layers of im- BUREAU OF GEOLOGY (FROM BUTSON, 1959) FIGURE 4.- Mean annual rainfall distribution in Florida, 1931-55. permeable rock. Water confined in such an aquifer is said to be under artesian pressure, and the aquifer is called an artesian or confined aquifer. Florida's rainfall and her water-table aquifers are the major source and avenue for replenishment of the State's artesian water supply. An artesian aquifer, unlike a water-table aquifer, is completely filled with water, and because it is overlain by a bed of low permeability, the water is contained in the aquifer under pressure, to rise above the top of the aquifer where taped by a well that penetrates the confining bed (see fig. 1). If the pressure is great enough the water will rise in the well to land surface, to spill over the top of the casing and form a "flowing well." At such a location, BULLETIN NO. 31 should a natural passage occur between the aquifer and land surface, a spring would result. The Floridan Aquifer is principally an artesian aquifer (fig. 5) composed (FROM HEALY, 19751 FIGURE 5. Generalized locations of areas of artesian flow of the Floridan Aquifer. of limestone and dolomite covered in much of Florida by elastic sedimentary beds of low permeability. However, in some areas of recharge to the aquifer, as in the vicinity of the Ocala Uplift (fig. 2), the aquifer is at or near the surface, and thus is more or less under water-table conditions. Whereas the porous and permeable sedimentary rocks in the subsurface of Florida have the capacity to store and transmit large volumes of water, BUREAU OF GEOLOGY only part of these sediments contain water of good quality. In the geologic past, glacial ice has alternately advanced and retreated over the polar regions due to climatic changes. These shifts in the size of the polar ice caps, and consequently the quantity of water in the oceans, have caused substantial fluctuations of sea level; the higher stands inundating most of Florida and replacing most of the fresh and saline water then in the aquifers with sea- water. A sufficient interval of time has passed since the last high stand of the sea to enable fresh water, falling as rain, to infiltrate the aquifers, flushing and replacing much of the saline water. A substantial part of the Floridan Aquifer, especially along the coast and in south Florida, however, still con- tains water whose chloride concentration is in excess of 250 milligrams per liter, a mixture of freshwater and seawater (fig. 6). FIGURE 6.- Areas of non-potable water in the upper part of the Floridan Aquifer. BULLETIN NO. 31 The Floridan Aquifer is replenished with water in areas where the aquifer is exposed at the surface or where it is overlain by porous and permeable material. Where relatively impermeable materials mantle the aquifer, re- charge may occur through breaches in that mantle, such as sinkholes. Re- charge areas are where the aquifer is naturally replenished. Cooper (1953, p. 21) estimated the recharge area of the Floridan Aquifer to be about 13,000 square miles (fig. 7). FIGURE 7.-Areas of recharge to the Floridan Aquifer BUREAU OF GEOLOGY Although the rain that falls on Florida is the source of fresh water, not all that is available gets into the aquifer. Where the aquifer is full, and there- fore unable to accept additional water, the rainfall is rejected and leaves the area as surface runoff to lakes and streams. A substantial quantity of water that enters the soil is quickly utilized by the vegetative cover through its root system and is lost by evaporation and transpiration. Where the aquifer is overlain by sediments of low permeability, downward percolation of water is retarded and recharge is limited even though the aquifer may not be full. And when heavy rains occur, the ability of the soil to absorb water may be exceeded and excess water will flow over the surface to lakes and streams without the aquifer being filled. The potentiometric surface can be depicted on a map by a series of con- tours (or lines) of equal water level. Water in the aquifer moves from high to low points on the potentiometric surface and the natural direction of move- ment thus is generally perpendicular to the contours on the potentiometric surface. Figure 8 represents the potentiometric surface for the Floridan Aquifer in Florida in May 1974. This map was constructed using water-level measurements collected from wells and springs throughout the State. The contours on the map were drawn by connecting points of equal water level measured in feet above mean sea level. The map is generalized because of its small size and shows only those major potentiometric features which maintain a fairly constant relation to one another from year to year. Smaller local details, such as those caused by changes in pumping patterns or irregu- larities in rainfall, are not shown. The highs in the potentiometric surface are generally considered recharge areas and the lows discharge areas and, of course, there must be discharge from an aquifer to have a recharge or water movement. Recharge and dis- charge may occur at many places between the high and low points, however, wherever geologic conditions permit. The saddle in the potentiometric surface across the northern part of the peninsula, includes five first magnitude springs (Rainbow, Silver, Silver Glen, Alexander, and Blue Springs) and reflects the comparatively low pres- sure that results from the flow of these and other large springs in this area. Another potentiometric low is in the Suwannee River valley where the river has eroded through the confining beds and exposed the artesian aquifer, thus permitting discharge through springs. Still another prominent discharge area is between peninsular and panhandle Florida, where a broad low-pressure trough in the potentiometric surface reflects the discharge from Wakulla and several other first magnitude springs. The lows, therefore, may be excellent indicators of the location of numerous or large springs. BULLETIN NO. 31 ( FROM HEALY, 19751 FIGURE 8.--Potentiometric surface of the Floridan Aquifer in Florida, May 1974. A detailed map of the potentiometric surface in the vicinity of a particular spring may be used to evaluate the role of the spring in the hydrologic regime of an area. The catchment area or ground-water basin of a spring can be outlined by drawing lines along the drainage divide in the potentio- metric surface. This is illustrated in figure 9 where the catchment area for Silver Springs is shown on a potentiometric surface map constructed on the basis of water level measurements from about 130 wells in the Floridan Aquifer. The flow of Silver Springs is derived from recharge by rainfall within the bounds of the catchment area. Silver Springs is the largest fresh- water spring in Florida from the standpoint of long-term average measured discharge. (See table 2.). BUREAU OF GEOLOGY FIGURE 9. Potentiometric surface of the Floridan Aquifee in the Silver Springs catchment area, May 1968. BULLETIN NO. 31 Knowing the size of the catchment area for a spring, the average annual rate of recharge to the aquifer may be calculated if the long-term average flow of the spring is known, assuming that there is not other discharge from the aquifer within the catchment area. Hydrologic investigations by Faulkner (1973, 1976) show that for Silver Springs, the catchment area measured on a potentiometric surface for May 1968 is about 730 square miles. The long-term (1932-72) average flow of the spring is 823 cubic feet per second. Therefore, the average annual recharge to the Floridan Aquifer in the catch- ment area is 15.3 inches. Stream flow data indicate that average annual sur- face runoff in about 3 inches; the long-term (1931-60) average annual rain- fall for the area in 53.2 inches. Therefore, about 35 inches of rainfall on the average, are lost to the area annually by evaporation and transpiration. Similar calculations have also been made for Rainbow Springs, another major first magnitude spring (Faulkner, 1973). The 3-year record illustrated by figure 10 shows Silver Springs discharge and ground water levels at nearby Ocala being dependent on rainfall at Ocala ground-water levels and spring discharge rising and falling together in response to the variations in Ocala rainfall. Partly because of these re- lations, changes in springflow are important indicators of current hydrologic conditions and long-term hydrologic trends of large parts of the aquifer system. WATER QUALITY CHARACTERISTICS OF SPRING WATER The physical and chemical characteristics of the water discharging from Florida's springs are indicative of the quality of the ground waters flowing into the streams of the State. Spring water varies greatly in these character- istics owing to an almost infinite number of hydrologic and geologic environ- ments which place particular contraints upon the hydrologic system. The flow pattern of the water over the land surface, through the rocks and sediments of the aquifer, and the type of rock determines what type and how much mineral or organic matter will be present to become dissolved or suspended, and how much will be lost due to precipitation, drainage, or filtration. Some differ- ences in water taste, color, and odor are obvious, but our senses cannot evaluate or detect other, more subtle, differences. We must then rely on mechanical or electrical devices to make available qualitive and quantitative identification. These analyses show a wide range in the chemical constituents and the physical properties or characteristics of spring water. &Z 4 ) 0 4) 00 mz no D 0I QC) L0 CD LLI w ZO U ~, CCLI n3 LL. LLO zC zz 1200 1000 800 600 55.0 57.5 60.0 62.5 65.0 15 10 5 0 (From Faulkner, 1976) g E~ Discharge of Silver Springs S\ near Ocala I I I I I II I I I I I I I I I I I I I I I I I I I I I I I I I Z to 0-I ~4) C- Monthly rainfall at Ocalo IT- (No Record) r r- J F M A M J J A S O N D J F M AM J J A S O N DIJ F M A M J J A S 0 ND 1966 1967 1968 BULLETIN NO. 31 Many obvious examples may be found to give one a feeling for the extent of such variations in chemical characteristics of spring water in Florida. Black Spring in Jackson County is highly colored with organic matter; Green Cove Springs in Clay County emits a sulfur odor; Salt Spring in Marion County is, as its name implies, salty; Copper Spring in Dixie County has deposits of iron around the pool and its run; Indian Springs in Gadsden County yields water whose dissolved solids concentration is as low as any water in the natural environment in Florida. Samples were collected from most of the springs from some for the first time and many after a lapse of 20 years or more. Few of Florida's springs show substantial change in the quality of water being discharged as com- pared to that of 20 or 30 years ago. The water from Florida's springs is usually of good quality the analyses being typical of water from wells in the vicinity that tap the Floridan Aquifer. Although few springs are dis- charging water relatively high in some constituents, none sampled carried contaminants such as pesticides, herbicides, or abnormal concentrations of trace elements. White Springs, formerly known as White Sulphur Springs, yields water that appears to have freshened over the years. Since first sampled in 1923, concentrations of several constituents show declines for example, sulfate from 19 milligrams per liter in 1923 to zero in 1972. The chemist will add that the data are inadequate to conclude whether the freshening is real or only apparent, but the people of the White Springs area insist that their spring has changed water has lost that rotten egg odor that once was so noticeable! DEFINITIONS OF CHEMICAL CONSTITUENTS AND RELATED TERMINOLOGY The definitions,' means of expressing analytical results, and a simplified tabulation of the sources, causes, and the significance of individual para- meters are given to provide background material that will be helpful to the reader in understanding the chemical and physical analyses that accompany most of the spring descriptions. Before the 1968 water year (October 1, 1967 through September 30, 1968), chemical analyses and concentrations of suspended sediment were reported in parts per million and water temperatures were reported in de- grees Fahrenheit. In October 1967, the U.S. Geological Survey began re- porting data for chemical constituents and concentrations of suspended sedi- ment in milligrams per liter (mg/L) and water temperatures in degrees Celsius (oC). BUREAU OF GEOLOGY Alkalinity. Caused primarily by bicarbonate and hydroxide. Other weak acid radicals like borate, phosphate, and silicate may contribute to alka- linity. The significance of alkalinity is the ability of such water to neu- tralize strong acids. High alkalinity itself is not detrimental but usually is associated with high pH, hardness, and dissolved solids which can be detrimental. Aluminum.- Usually present only in neglible quantities in natural waters except where the waters have been in contact with the more soluble rocks of high aluminum content. Acid waters often contain large amounts of aluminum. High concentrations usually indicate the presence of acid mine drainage or industrial waste. Aluminum may be trouble- some in feed waters by forming scale on boiler tubes. Arsenic.- Found in some ground waters where its source is the natural arsenic-bearing minerals in wastes from industry and mining activity, and residues from some insecticides and herbicides. Florida Department of Environmental Regulation drinking water standards (1975) give a limit of 50 micrograms per liter (jtg/L) for potable waters. A lethal dose of arsenic for animals is believed to be about 20 milligrams per animal pound. Small concentrations in drinking water can accumulate in man and other animals until lethal dosage is reached. Bicarbonate and Carbonate. Produced by the reaction of atmospheric car- bon dioxide with water and are dissolved from carbonate rocks such as limestone and dolomite. They are significant because they produce al- kalinity. Bicarbonates of calcium and magnesium decompose in steam boilers and hot water facilities to precipitate as scale and release cor- rosive carbon dioxide gas. They combine with calcium and magnesium to cause carbonate hardness. Biochemical oxygen demand.-A measure of the quantity of dissolved oxy- gen necessary for the decomposition of organic material by microorgan- isms such as bacteria. Biochemical oxygen demand, abbreviated BOD, is significant in that when it is high, severe oxygen depletion may result, with eventual harm to the environment. BOD is reported in milligrams per liter. Cadmium. Found in wastes from pigment works, textile printing, lead mines and chemical industries. The results of studies with animals sug- gest that very small amounts of cadmium can affect the kidneys, heart, and circulatory systems. Cadmium is toxic to fish in varying concentra- tions. Drinking water standards of the Florida Department of Environ- mental Regulation (1975) state that cadmium in excess of 10 pg/L is cause for rejection of the water supply. BULLETIN NO. 31 Calcium and Magnesium. Dissolved from practically all soils and rocks, but especially from limestone, dolomite, and gypsum. Calcium and mag- nesium are found in large quantities in some brines. Magnesium is present in large quantities in seawater. Calcium and magnesium cause most of the hardness and scale-forming properties of water. Waters low in calcium and magnesium are desired in electroplating, tanning, dyeing, and in textile manufacturing. Chloride. Dissolved from rocks and soils; it is also present in sewage and is found in large amounts in ancient brines, seawater, and industrial brines. About 300 mg/L chloride in combination with sodium gives a salty taste to water. Chloride increases the corrosiveness of water. Flor- ida DER drinking water standards (1975) recommend that chloride concentration should not exceed 250 mg/L. Chromium.- Rarely found in waters from natural sources; water can prob- ably contain only traces of chromium as a cation unless the pH is very low. When chromium is present in water, it is usually the result of pollu- tion by industrial wastes such as metal pickling, plating, manufacturing of paints, dyes, explosives, ceramics, paper, glass, and photography pro- cessing. Toxicity to aquatic life varies widely with the species, tempera- ture, pH, and other factors. Florida DER drinking water standards (1975) limit the maximum concentration of hexavalent chromium to 50 1g/L. Cobalt.--Occurs in nature in the minerals smaltite (CoAs2) and cobaltite (CoAsS). Alluvial deposits and soils derived from shales often contain cobalt in the form of phosphate or sulfate, but other soil types may be markedly deficient in cobalt in any form (Bear, 1955). Biological activ- ity may aid in the solution of small amounts of cobalt. It may also be present in industrial wastes, especially those from manufacture of ceram- ics, inks, electrical heating units and cobalt pigments. The presence of cobalt usually suggests pollution. Cobalt has a relatively low toxicity to man. Fish and aquatic life tolerance varies widely from less than 3.000 t/g/L to more than 10,000 ttg/L. Cobalt is essential to these quantities for plant growth. Color. The yellow-to-brown color of some water is usually caused by or- ganic matter extracted from leaves, roots, and other organic substances. Objectionable color in water may also result from industrial wastes and sewage. Color in water is objectionable in food and beverage processing and many manufacturing processes; it limits light penetration of water, thus preventing growth of some organisms. Water for domestic and some industrial uses should be free from perceptible color. Color is expressed 32 BUREAU OF GEOLOGY in units of the platinum-cobalt scale proposed by Hazen (1892). A unit of color is produced by one milligram per liter of platinum in the form of the chloroplatinate ion. Copper. A fairly common trace constituent of natural water. Small amounts may be introduced into water by solution of copper and brass water pipes and other copper-bearing equipment in contact with the water or from copper salts added to control algae in open reservoirs. Copper salts, such as sulfate and chloride, are highly soluble in waters with a low pH but in water of normal alkalinity the salts hydrolyze and copper may be precipitated. In the normal pH range of natural water containing carbon dioxide, copper might be precipitated as carbonate. Copper imparts a disagreeable metallic taste to water. As little as 1,500 ttg/L can usually be detected, and 5,000 Cjg/L can render the water unpalatable. Copper is not considered to be a cumulative systemic poison like lead and mer- cury; most copper ingested is excreted by the body and very little is retained. The pathological effects of copper are controversial, but it is believed very unlikely that humans could unknowingly ingest toxic quan- tities from palatable drinking water. Florida DER (1975) recommends that copper should not exceed 1,000 /ig/L in drinking and culinary water. Copper is essential in trace amounts for plant growth but becomes toxic in large amounts. Dissolved Oxygen.- Easily dissolves in water from air and from oxygen given off in the process of photosynthesis by aquatic plants. Dissolved oxygen increases the palatability of water. The amount necessary to sup- port fish life varies with species and age, with temperature, and concen- tration of other constituents in the water. Under average stream condi- tions, 5 mg/L is usually necessary to maintain a varied fish fauna in good condition. For many industrial uses, zero dissolved oxygen is de- sirable to inhibit corrosion. Dissolved solids. Chiefly the mineral constituents dissolved from weather- ing or rocks and soils. Waters containing more than 1,000 mg/L of dissolved solids are unsuitable for many purposes. The U.S. Geological Survey classifies the degree of salinity of these more mineralized bodies of water as follows (Swenson and Baldwin, 1965): Dissolved solids (mg/L) Degree of Salinity Less than 1,000 .......................... ............................... Nonsaline. 1,000 to 3,000 ............................. .............................. Slightly saline. 3,000 to 10,000 .......................................................... Moderately saline. 10,000 to 35,000 ........................................................ Very saline. BULLETIN NO. 31 Fluoride. May be present in water in small to minute quantities as a result of leaching of fluoride bearing rocks and soil. It also may be present in municipal supplies as a result of fluoridation. Fluoride in drinking water reduces the incidence of tooth decay when the water is consumed during the period of enamel calcification. However, it may cause mottling of the teeth depending on the concentration of fluoride, the age of the child, amount of drinking water consumed, and susceptibility of the individual. (Maier, 1950). Hardness.- In most waters, hardness is due to the calcium and magnesium content. All of the metallic cations other than the alkali metals also cause hardiness. Water that is high in calcium-magnesium carbonate consumes soap before a lather will form and deposits soap curd on sinks or bathtubs. Hard water forms scale in boilers, water heaters, and pipes. Hardness equivalent to the bicarbonate and carbonate is called car- bonate hardiness. Any hardness in excess of this is called non-carbonate hardness. Waters of hardness up to 60 mg/L are considered soft; 61 to 120 mg/L, moderately hard; 121 to 180 mg/L, hard; more than 180 mg/L, very hard (Durfor and Becker, 1964). Hydrogen ion concentration. Commonly is expressed in terms of pH, where pH = -log (H+). Hydrogen ions are derived from ionization of weak and strong acids. Acid-generating salts and dissolved gases such as S02 and CO2 increase the number of hydrogen ions. Carbonates, bicar- bonates, hydroxides, phosphates, silicates, and borates reduce the number of hydrogen ions. Hydrogen ion concentration in terms of pH ranges between 0 and 14. A pH of 7.0 indicates a solution that has an equal number of hydrogen and hydroxide ions. A pH higher than 7.0 denotes a predominance of hydroxide ions; a pH less than 7.0 denotes a pre- dominance of hydrogen ions. Corrosiveness of water generally increases with decreasing pH, although excessively alkaline waters may also at- tack metals. Iron. Dissolved from many rocks and soils. On exposure to air, normal basic waters that contain more than 1,000 /xg/L of iron become turbid with the insoluble reddish ferric compounds produced by oxidation. Surface water, therefore, seldom contains as much as 1.000 ptg/L of dissolved iron, although some acid waters carry large quantities of iron in solution. More iron than about 300 itg/L may stain laundry and utensils reddish-brown. Water high in iron is objectionable for food processing, textile processing, beverages, ice manufacture. brewing and other processes. Florida DER (1975) limits, and for esthetic reasons, iron and manganese should not exceed 300 Itg/L. Larger quantities cause unpleasant taste and favor growth of iron bacteria. BUREAU OF GEOLOGY Lead. Seldom occurs naturally in surface or ground waters, but industrial mine and smelter effluents may contain relatively large amounts of lead which may contaminate a water source. Atmospheric contamination with lead produced from several types of engine exhausts has considerably increased the availability of this element for solution in rainfall, result- ing in lead contamination of water bodies (Hem, 1970). Florida DER (1975) drinking water standards state that lead shall not exceed 50 /tg/L in drinking and culinary water. Maximum safe concentrations for animal watering is reported to be 500 ug/L. Toxicity of lead to fish de- creases with increasing water hardness. Manganese. -- May be dissolved from some rocks and soils; it is not as com- mon as iron. Large quantities are often associated with high iron con- tent and with acid waters. Manganese has the same objectionable fea- tures as iron; it causes dark brown or black stains. Florida DER drinking water standards provide that iron and manganese together should not exceed 300 /g/L. Micrograms per liter. A unit expressing the concentration of chemical constituents in solution as weight (micrograms) of solute per unit volume (liter) of water. Its symbol is xg/L. One thousand micrograms per liter is equivalent to one milligram per liter. Milligrams per liter. A unit for expressing the concentration of chemical constituents in solution. Its symbol is mg/L. Milligrams per liter repre- sents the weight of solute per unit volume of water. Mineral constituents (inorganic substances which occur naturally in the earth) in solution. The analyses listed in this report include only those mineral constituents that have a practical bearing on water use. The analyses generally include silica, iron, calcium, magnesium, sodium, potassium, carbonate, bicarbonate, sulfate, chloride, fluoride, nitrate, pH, and dissolved solids. Aluminum, manganese, color, specific conduct- ance, dissolved oxygen, and other dissolved constituents and physical properties are reported for certain springs. Organic components (al- though not mineral) may have an influence over the amount of mineral constituents in solution. Nickel. -The presence of nickel in water suggests pollution. When present it is chiefly from metal-plating works, or from manufacturing of ceramic colors and inks. Federal drinking water standards do not place a limit on nickel. In the Soviet Union the maximum permissable concentration is 1,000 ug/L. (Kirkor, 1951). Ammonia Nitrogen. -Includes nitrogen in the form of NHa and NH4+. It is found in many waters but usually only in trace amounts although BULLETIN NO. 31 waters from hot springs may contain high concentrations. Found also in waters carrying sewage and other organic wastes; presence in surface or ground water usually indicates organic pollution. Toxicity to fish is dependent on the pH of the water; 2.5 mg/L ammonia nitrogen can be harmful in the 7.4 to 8.5 pH range (Ellis and others, 1946). Ammonium salts are destructive to concrete made from portland cement. Organic Nitrogen. Originates from amino acids, proteins, and polypep- tides; derived from living organisms and their life processes and from wastes and sewage. Presence of organic nitrogen sometimes indicates pollution; increases nutrient content of water through decomposition and formation of other nitrogen forms. Nitrate Nitrogen.-Derived from decaying organic matter, sewage, fertilizers, and nitrates in soil. Nitrate concentrations much greater than the local average may suggest pollution. There is evidence that water with more than about 10 mg/L of nitrate (N) may cause a type of methemoglobi- nemia in infants which may be fatal and therefore should not be used in baby feeding (Maxcy, 1950). Nitrate encourages growth of algae and other organisms which produce undersirable tastes and odors. Nitrite Nitrogen. Unstable in the presence of oxygen, it is present in only small amounts in most waters. Found in sewage and other organic wastes, nitrite is usually an indication of recent organic pollution. Un- desirable in waters for some dyeing and brewing processes. Total Kjeldahl Nitrogen. The sum of ammonia nitrogen and organic nitro- gen. (See ammonia nitrogen, nitrite, nitrate, and organic nitrogen.) Nutrients. Chemicals necessary to the growth and reproduction of rooted or floating flowering plants, ferns, algae, fungi, or bacteria. Pesticides. Chemical compounds used to control the growth of undesirable plants and animals. Major categories of pesticides include insecticides, miticides, fungicides, herbicides, and rodenticides. Since the first appli- cation of DDT as an insecticide in the early 1930's, there have been almost 60,000 pesticide formulations registered, each containing at least one of the approximately 800 different basic pesticide compounds (Goerlitz and Brown, 1972, p. 24). Unless otherwise noted on the analyses, the pesticides tested for include the insecticides: aldrin, DDD, DDE, DDT, dieldrin, endrin, heptachlor, heptachlor expoxide, lindane, chlordane, toxaphene, ethion, trithion, methyl trithion, parathion, methyl parathion, malathion, and diazinon; and the herbicides: 2, 4-D, silvex, and 2, 4, 5-T. Picocurie. One millionth of the amount of radioactivity represented by a microcurie, which is the quantity of radiation represented by one mil- BUREAU OF GEOLOGY lionth of a gram of radium-226. Its symbol is pCi. A picocurie of radium results in 2.22 disintegrations per minute. Polychlorinated biphenyls (PCBs).- A class of compounds produced by the chlorination of biphenyls. PCBs are soluble in water, lipids, oils and organic solvents, and resistant to heat and biological degradation. They are relatively nonflammable, have useful heat exchange and dielectric properties and are used in the electrical industry in capacitors and trans- formers. Can be harmful to fresh water and marine aquatic life and their consumers, and to humans. (EPA 1976, p. 193.) Radioisotopes. Isotope forms of an element that exhibit radioactivity. Iso- topes are varieties of a chemical element that differ in atomic weight, but are very nearly alike in chemical properties. The difference arises because the atoms of the isotopes forms of an element differ in the num- ber of neutrons in the nucleus. For example: ordinary chlorine, whose atomic weight is 35.453, is a mixture of isotopes having atomic weights 35 and 37. Many of the elements similarly exist as mixtures of isotopes, and a great many new isotopes have been produced in the operation of nuclear devices such as the cyclotron (Rose, 1966). There are 275 iso- topes of the 81 stable elements in addition to over 800 radioactive isotopes. Specific Conductance. A measure of the ability of a water to conduct an electrical current; it is expressed in micromhos per centimeter at 250C. Conductance is related to the type and concentration of ions in solution and can be used for approximating the dissolved-solids content of the water. Strontium. Occurs in water where strontium minerals, such as celestite and strontianite, are present. Is found in seawater and many brines. Naturally occurring strontium is similar chemically to calcium and adds to the hardness of water. Radioactive isotopes of strontium, as from nuclear bomb fallout, can be harmful. These isotopes can be detected by radiometric measurements. Sulfate.- Dissolved from rocks and soils containing gypsum, iron sulfides, and other sulfur compounds. Sulfate is usually present in mine waters and some industrial waters. Sulfate in water containing calcium forms a hard scale in steam boilers; and in large amounts, sulfate in combination with other ions gives a bitter taste to water. Some calcium sulfate is considered beneficial in the brewing process. Florida DER drinking water standards state that the sulfate concentration should not exceed 250 mg/L. Temperature. Sources of heat are solar energy, heat from earth's core and thermal pollution from waste outfalls. The temperature of water affects BULLETIN NO. 31 TABLE 5. Conversion of temperature scales (OC) to Degrees Fahrenheit (oF). Degrees Celcius * OC = 5(F-32); 9 OF = (oC x 9) = 32 5 its usefulness for many purposes. Water of uniformly low temperature is desired for most uses. Temperature of water in shallow wells shows some seasonal fluctuations; wells of moderate depths usually yield water which is near the mean annual air temperature of the area. In very deep wells, the water temperature generally increases on the average about one degree Celsius per 100-foot increment of depth (or about one degree Fahrenheit per 65-foot depth). Seasonal fluctuations in temperatures of surface waters are large, depending on the depth of water, but do not reach the extremes of air temperature. See table 5 for conversion of temperature, degrees Celsius to Fahrenheit. OC OF OC OF 15.0 59 26.0 79 15.5 60 26.5 80 16.0 61 27.0 81 16.5 62 27.5 81 17.0 63 28.0 82 17.5 63 28.5 83 18.0 64 29.0 84 18.5 65 29.5 85 19.0 66 30.0 86 20.0 68 30.5 87 20.5 69 31.0 88 21.0 70 31.5 89 21.5 71 32.0 90 22.0 72 32.5 90 22.5 72 33.0 91 23.0 73 33.5 92 23.5 74 34.0 93 24.0 75 34.5 94 24.5 76 35.0 95 25.0 77 35.5 96 25.5 78 BUREAU OF GEOLOGY Total Organic Carbon.- A measure of the organically related carbonaceous content of water. It includes all natural and manmade organic com- pounds that are combustible at a temperature of 9500C. Turbitity.- Caused by colloidal suspension of sediment, precipitates, and other small particles. Turbitity should be less than 5 Jackson turbidity units (JTU) for domestic use. Turbidity interferes with light penetra- tion, limits growth of organisms, and if high, is lethal to some life forms. Zinc.- Dissolved from some rocks and soils; it is found in high concentra- tions in mine waters that have a low pH. Zinc may be derived from zinc plated or galvanized metal products; it is used in many commercial products, and industrial wastes may contain large amounts. Small amounts of zinc are toxic to aquatic plants and animals. Zinc may have such a toxic action on the purifying bacterial flora of streams that seri- ous sewage pollution problems result. Florida DER drinking water standard limit zinc concentrations to 5,000 jLg/L. DISTRIBUTION OF FLORIDA SPRINGS The distribution of springs within the state of Florida is not entirely random. 'Ae discussions on geology and hydrology show that certain environ- mental factors affect the potential for spring development. Where the primary physical control is a downcutting river or a local karst topographic feature, the effect may be a regional concentration of springs as in the Suwannee River basin, or an isolated spring as in Sarasota County. Of the 300 springs listed in this report, most are the result of regional in- fluences, with only a few the result of local influence. The few water-table "seeps" or "filtration" springs, are mainly in northern Florida. Others are unusual in that they are "deep source" springs. In Florida there are 27 springs of first magnitude. They are listed in table 2 and their locations are shown in figure 11. All are described in detail. Each of these 27 springs, or groups of springs, is discharging water from the Floridan Aquifer at an average rate exceeding 100 cubic feet per second. They have a total average flow of 9,600 cubic feet per second or about 80 percent of the 12,000 cubic feet per second estimated discharge of all of Florida's springs. These first magnitude springs include several that are na- tionally or even internationally known, such as Rainbow, Weeki Wachee, and Wakulla Springs, which are in Marion, Hernando, and Wakulla counties, respectively. Other first magnitude springs are unknown to even nearby resi- dents; examples are Alapaha Rise and St. Marks Spring, which are in Hamilton and Leon counties, respectively. 840 830 310 LMo - f, J,/7- F U 1 -Lao oFods7ir m n d sprig Ls a 4 '4 u ft30. er seod cLA \oAr 4 EXPLANATION 1 2 j^ s/ 9 ) \ SPRING AND NUMBER, Ai*5 0 VL REFERENCED TO TABLE 2 29- AND FIGURES 12- 15,17 J "L -- suWE S -r-N OL AMNNANi o ONA MU ^f FIGURE 11. -Locations of Florida's 27 first magnitude springs. These are springs or groups of springs that have average flows of 100 cubic feet per second or more. BUREAU OF GEOLOGY THE HYDROLOGIC SUBREGIONS Florida is divided into eight hydrologic subregions on the basis of surface drainage systems. These subregions are aggregates of smaller hydrologic units (U.S. Water Resources Council, 1974; Conover and Leach 1975). The following text and figures identify the springs and spring groups by name, number, and county for each of the hydrologic subregions of the State and for those springs known through 1976. The recent establishment of three new Water Management Districts in Florida has increased field exploration by hydrologists and geologists interested in water resources. As a result, many springs previously unreported and known to only a few nearby residents have been located and described. Alapaha Rise in Hamilton County is an example of such a spring. Increased scientific investigation and the expansion of our population into the wooded and swampy areas of north Florida will bring identification of other "new" springs. ALTAMAHA -ST. MARYS RIVERS SUBREGION This subregion in the northeastern part of the state (fig. 12) encompasses about 1,380 square miles in the Coastal Lowlands and Central Highlands. Su-No-Wa Spring in Nassau County, the only spring reported in the sub- region, is a seep resulting from local hydrologic conditions. ST. JOHNS SUBREGION From Duval County in the north to Indian River County in the south, this subregion covers 11,310 square miles in the Coastal Lowlands and eastern Central Highlands (fig. 12). It is known to have 51 springs including Silver Springs, considered to be Florida's largest freshwater spring owing to its long-term measured average flow. The springs are concentrated in Alachua, Clay, Lake, Marion, Orange, Putnam, Seminole, and Volusia counties. All are situated around the central part of the subregion. The area is transected by the Deland, Crescent City, and Mount Dora Ridges, the Marion Uplands, and the St. Johns River Offset (Puri and Vernon, 1964, fig. 6). Superim- posed upon these features is a karst topography to which most of these springs owe their occurrence. SOUTHERN FLORIDA SUBREGION This is the largest hydrologic subregion'of the state, encompassing 18,212 square miles or over one third of the Florida peninsula. It is generally flat and lies almost entirely within the Coastal Lowlands. Although several springs were known in the early years of the development of the Miami area, none BULLETIN NO. 31 Seminole County 1. Clifton Springs 2. Elder Spring 3. Heath Spring 4. Lake Jessup Spring 5. Miami Springs 6. Palm Springs 7. Sanlando Springs 8. Starbuck Spring Volusia County 1. Blue Spring 2. Gemini Springs 3. Green Springs 4. Ponce de Leon Springs A 5. Seminole Spring r *1 Subregion Nassau County 1. Su-No-Wa Spring Alachua County 1. Boulware Spring 2. Ford Spring 3. Glen Springs 4. Iron Spring 5. Magnesia Spring 6. Sulfur Spring Clay County 1. Gold Head Branch Springs 2. Green Cove Spring 3. Magnolia Springs 4. Pecks Mineral Spring 5. Wadesboro Spring Lake County 1. Alexander Springs 2. Apopka Spring 3. Blue Springs 4. Bugg Spring 5. Camp La No Che Spring 6. holiday Springs 7. Messant Spring 8. Seminole Springs Marion County 1. Blue Spring 2. Fern Hammock Springs 3. Juniper Springs 4. Orange Spring 6. Salt Springs 7. Silver Glen Springs 8. Silver Springs 9. Sweetwater Springs OSCLA 0 L- Orange County - 1. Barrel Spring 2. Camp Spring 3. Mill Creek Springs 4. Rock Spring 5. Wekiwa Springs 6. Witherington Spring Putnam County 1. Beecher Springs 2. Forest Spring 3. Mud Spring 4. Nashua Spring 5. Satsuma Spring 20 4 6. Welaka Spring 20 LES 7. Whitewater Springs FIGURE 12. Springs in the Altamaha St. Marys and St. Johns Hydro- logic Subregions. 30oI- 280F- BUREAU OF GEOLOGY of them now flow (Ferguson and others, 1974). However, six pseudo or false springs are included in this report because they are commonly identified as springs. The pseudosprings are artesian wells; and they are briefly dis- cussed in the section entitled "Florida's Pseudosprings." PEACE, WITHLACOOCHEE, HILLSBOROUGH RIVERS AND WESTERN COASTAL AREA HYDROLOGIC SUBREGION Consisting of the west-central part of Florida's peninsula (fig. 13), this hydrologic subregion accounts for 9,811 square miles in the Coastal Low- lands and Central Higlhands. It is an area of low plains, of hilly areas in the eastern extremes, and of karst features in the central and northern parts. About a dozen of the 61 known springs are karst related and situated along the coast in Citrus, Hernando, and Pasco counties, whereas most of the others, in Citrus, Marion, Sumter, Pasco, and Hillsborough counties are as- sociated with downcutting river systems. Two springs in south Sarasota County are deep warm water springs. SUWANNEE AND AUCILLA RIVERS HYDROLOGIC SUBREGION Of the 13,720 square miles of this Subregion, 7,832 square miles are in Florida, mainly in the Coastal Lowlands but including some of the northern section in the Northern Highlands (fig. 14), the remainder are in Georgia. Of the 115 known springs in this area, most are associated with the down- cutting Suwannee and Santa Fe Rivers in Hamilton, Madison, Suwannee, Lafayette, Gilchrist, Dixie, Levy, Columbia, and Alachua counties. In or near the channels of the Suwannee and Santa Fe Rivers many other springs are believed to occur. OCHLOCKONEE RIVER HYDROLOGIC SUBREGION Of the 2,324 square miles of this Subregion in Florida, about half lies in the Gulf Coastal Lowlands and half is in the Tallahassee Hills (fig. 15.). The Subregion includes all or part of Wakulla, Leon, Franklin, Liberty, Gadsden, and Jefferson counties. There are 27 reported springs or spring groups, including Spring Creek, most of them concentrated in Leon and Wakulla counties, Spring Creek has the largest known spring discharge of fresh water or saline water in Florida. APALACHICOLA, CHATTAHOOCHEE, AND FLINT RIVER HYDROLOGIC SUBREGION About 16 percent, or 3,081 square miles, of the Apalachicola, Chattahoo- chee, and Flint River Subregion is in Florida (fig. 15). About 19 springs have been reported in this Subregion; more than half are associated with BULLETIN NO. 31 Citrus County 1. Blue Spring 2. Chassahawitzka Springs 3. Crab Creek Spring 4. Crystal River Springs 5. Homosassa Springs 6. Potter Spring 7. Ruth Spring 8. Salt Creek Spring 9. Unnamed Springs Hernando County 1. Blind Springs 2. Boat Springs 3. Bobhill Springs 4. Little Springs 5. Mud Spring 6. Salt Spring 7. Unnamed Spring 1 8. Unnamed Spring 2 9. Unnamed Spring 3 10. Unnamed Spring 4 11. Unnamed Spring 5 12. Unnamed Spring 6 13. Unnamed Spring 7 14. Unnamed Spring 8 15. Unnamed Spring 9 16. Unnmaed Spring 10 17. Unnamed Spring 11 18. Unnamed Spring 12 19. Weeki Wachee Springs Hillsborough County 1. Buckhorn Spring 2. Eureka Springs 3. Lettuce Lake Spring 4. Lithia Springs 5. Messer Spring 6. Palma Ceia Springs 7. Purity Spring 8. Six Mile Creek Spring 9. Sulphur Springs Marion County 5. Rainbow Springs 10. Wilson Head Spring Pasco County 1. Crystal Springs 2. Horseshoe Spring 3. Hudson Spring 4. Isabella Spring 5. Magnolia Springs 6. Salt Spring 7. Salt Springs 8. Seven Springs 9. Unnamed Springs 1 10. Unnamed Spring 2 11. Unnamed Spring 3 12. Unnamed Spring 5 Pinellas County 1. Health Spring 2. Phillippi Spring Polk County 1. Kissengen Spring Sarasota County 1. Little Salt Spring 2. Pinehurst Spring 3. Warm Mineral Springs Sumter County 1. Fenney Springs 2. Gum Springs 0 20 40 MILES | I I I I FIGURE 13.- Location of springs in the Peace, Withlacoochee, Hillsborough Rivers and western coastal area Hydrologic Subregions. 44 BUREAU OF GEOLOGY river downcutting in the Marianna Uplands in Jackson County. The re- mainder are seeps and isolated springs in Gadsden, Calhoun, and Gulf counties. Union County 1. Worthington Spring Alachua County 7 Darby Spring 8 .- Ir-.-, 9 :- t, ,, 1 - 10. Poe Springs Bradford County I. Heilbrnn Spring Columbia County I Allen Spring 2 Bell Springs : Columbia Spring 4 Ichetucknee Springs Group Ichetucknee Spring Cedar Head Spring Blue Hole Spring Roaring Springs Singing Springs Boiling Spring Grassy Hole Spring Mill Pond Spring (offee Spring 5 Jamison Spring 6. duly Spring 7 Jonathlan Spring H Northbank Spring 9 Rum Island Spring II Wilson Spring Dixie County I Copper Spring 2 Guaranto Spring [ Little Copper Spring I. Mctrabb Spring (Gilchrist County I Bell Spring, 2 lue Spring SHart Springs 6i L ill Springs 7 lumber ('.mp Springs r Otter Springs A Pleasant G(roie Springs 10i Rock BluffSprings I1 Sun Springs 12 Town.and Spring Hamilton County I Adams Spring 2 Alapaha Rise :I Blul('emetern Spring I Holton Spring 5 Louisa Spring o 1 -U - 7 " Garner Springs Blue Spring Buzzard Log Springs Minnoi Spring Cassidy Spring Springs No 1 and 2 Thomas Spring Log Springs 1 Allen Spring Horsehead Spring 2 Walker Spring 4 5 Lafayette County I Allen Mill Pond Spring 8 2 Blue Spring 9 I C-onvict Spring I1 I Fletcher Spring II ii Mearson Sprrng II 7 lurens Spring 14 S Pern Spring I5 iJ Ruth Spring 16 II Stelnhatrhee Spring 7I 1 Troy Spring IS 12 Turtle Spring S9 209 -o Levy County 1 Big Spring 2 Blue Spring 3. Fannon Springs 4. Little Spring 5 Manatee Spring 6i Wekiva Springs Madison County 1 Blue Spring 2 Cherry Lake Spring .1 Pettis Spring 4 Suwanaconchee Spring FIGURE 14. Springs in the Suwannee and Aucilla Rivers Hydrologic Sub- region. Suwannee County Anderson Spring Baptizing Spring Bonnet Spring ItCo Spring Ellaville Spring Falmuuth Spring Lime Spring Little Riser Springs ILuralIle Springs Peacock Sprinng Pump Spring Real Spring Running Spring Suwannee Blue Spring S4wannee Springs iTelfrd Springs Taylor County Big Spring Blue Spring Blue Spring Campground Spring C(.rlton Spring I Srn Iron Spring W-trrior Spring BULLETIN NO. 31 CHOCTAWHATCHEE, YELLOW, AND ESCAMBIA RIVER HYDROLOGIC SUBREGION The western panhandle of Florida includes 6,491 square miles of the 14,740 square miles of the Subregion (fig. 15). Florida has 18 springs associated with the Western Highlands, Choctawhatchee River valley, and the Escambia valley. Most of the springs are the result of river erosion and arc in Washington, Holmes, Bay. and Walton counties. There probably arc many more small springs and seeps than the few known in Walton, Santa Rosa. and Escambia counties. 87o 860 850 840 BRy County 1 Bay Copng Jackson County I. Garner SpnngH 2 Pltu Spnng I Black Spring 2 Blue Hole Spring CalhounCounty 3 BlueSprnng 0 20 40 MILES 4 Bosel Spcng 4 0 i _ I Abes Spring 5 Daniel Spring- 6 Double Sprng Esabia Canty 7 Gadsen Spring 1. Mystic Sprngs 8 Hays Spring 9 Mdil Pond Spring Liberty County Gadsden County 10. Sand Bag Spring I: Chatt r Spring 11 SpringboardSpring White Sprng., 1. Ch..atta hee Spring 12. Tanner Springs 2. Glen Julia Springs 13. Unnamed Sprgs Wakulla County 3 Indian Sprngs 14 Waddell Mill Pond Spring I Indian Sprngs Washington County 15. Webbvlle Spring 2 Kinl Spnng I Becklon Spnngs lf County 3 Newport Springs 2 Blue Spring 1 Dalkeith Springs Leon County 4 Panacea Mineral Sprnngs 3 Blue Spnngs 5 River Sink Spring 4 Cypre Spring Ho.es County 6 Wakulla Springs 5 Walsingham Sprng 1 Blur Sprang 3 Rhodes Sprngn 6 Walliford Sprng 2 Jackson Spring 4. C? Mk *?r-r Walton County 3 Ponce de Leon Springs 5. .- -. . 1i Euchee Sprnng Santa Rosa County 4 Vorte Blue Spring 6. .- 2 Morrison Spring I Chumuckla Spnngs FIGURE 15. -Springs in the Choctawhatchee, Yellow, and Escambia Rivers; Chattahoochee, and Flint Rivers; and the Ochlockonee River Hydrologic Subregions. BUREAU OF GEOLOGY SPRING DESCRIPTIONS SPRING NAMES There is considerable confusion about the names of many of Florida's springs. Any number of these natural ground-water discharge sites have but a single vent and yet are popularly identified in the plural "Springs". Others have been known by several names; they may have had place names or have been named after individuals such as their owners. Blue Spring in Volusia County is in Blue Springs State Recreation Area; and U.S. Geological Sur- vey records dating back to 1932 have identified it as "Blue Springs near Orange City." Ferguson (1947, p. 163) identified the same spring as Blue Spring near Orange City. The policy that the authors tried to follow in the use of spring names was: (1) to delete the place modifiers, "near Orange City" for example, from the name "Blue Spring"; and (2) to follow established published usage when- ever feasible. For the latter, the primary reference was Bulletin 31 of the Florida Geological Survey, prepared by Ferguson and others; the secondary reference was the recent U.S. Geological Survey 71V-minute topographic quadrangle maps; and third, other publications. Local usage followed. If a choice had to be made between the singular and plural forms of "spring," the physical situation was the determining factor. SPRINGFLOW Springflow is indicative of the status of Florida's water resources. High spring and streamflows reflect high water levels; and low flows, or the lack of flow from major springs, indicates declining potentiometric levels in the principal artesian aquifer of the state. An example of the latter condition is Polk County's Kissingen Spring. Most of Florida's streams depend on the water discharged from springs for a significant part of their flow; the Wacissa and Suwannee Rivers are but two of many such streams. The periodic statewide measurement of springflow, streamflow, and ground-water levels is, therefore, necessary if man is to be knowledgeable about the water resources available to him. Spring and streamflow are normally expressed in cubic feet per second, in million of gallons per day, or in gallons per minute if the volume being measured or reported is small. A rate of flow (discharge) of 1 cubic foot per second represents a volume of 1 cubic foot of water passing a given point during 1 second. Table 6 lists the equivalents useful in converting be- tween the more common hydraulic units. Springflows are usually measured in the first straight uniform reach of the BULLETIN NO. 31 47 Cubic feet Acre-feet Million gal- Gallons Inches per per second per day lons per day per minute square mile per (ft3/s) (acre-ft/d) (Mgal/d) (gal/min) year (in/mi )/y 1.0 1.9835 0.646317 448.83 13.574 .50417 1.0 .325851 226.29 6.8438 1.5472 3.0689 1.0 694.44 21.0025 .00223 .00442 .001440 1.0 .03024 .07367 .14612 .04761 33.065 1.0 TABLE 6. Conversion factors for rates of flow. METHODS OF FLOW MEASUREMENT spring run or stream downstream from the spring. If the quantity of water flowing from the spring is small, in the range of 1 cubic foot per second and is discharging through a pipe, a volumetric measurement may be made. An example is Steinhatchce Spring in Lafayette County. This is done by meas- uring the time required for the discharging water to fill a container of known capacity. A velocity-area method is the most common means of determining dis- charge in an open channel. This method uses a current meter to determine the water velocity at a number of points across a channel. For detailed in- formation on all stream-gaging procedures see Corbett and others, 1962. Under flood or very high streamflow conditions, external pressure on a spring may exceed internal pressure thus causing a reversal of its flow. Falmouth Spring, in Suwannee County, is one of the several springs known to be so affected but the only one where a reverse flow has been measured. In reporting the flow of individual springs, the authors cited such unusual circumstances. Otherwise, the range and average flow were given if all meas- urements could not be shown. SPRING-WATER SAMPLING The methods of collection and analysis of the more recent water samples are described by Brown, Skougstad, and Fishman (1970). The methods that were used before 1970 in collecting samples are described by Rainwater and BUREAU OF GEOLOGY Thatcher (1960). All water samples were collected from the springs as close as possible to their orifices, vents, seepage zones, or other points of spring discharge in order to minimize the effects of contact with surface materials or the atmosphere. Sampling of the water from first magnitude springs was more extensive than from the smaller springs and generally the analyses are more compre- hensive. For example, many of the samples were analyzed for trace elements, nutrients, insecticides, herbicides, and polychlorinated biphenyls. A list of those pesticides generally tested for is included in the section on water quality. SPRING IDENTIFICATION NUMBERS Spring-discharge and water-quality data collection sites (Table 7) have been identified by either of two systems: a 15-digit identifier or an 8-digit downstream order number. The former system requires explanation because it may also be the geographical location of a station the numbers consist of the latitude and longitude coordinates to the nearest second, plus "00" or a 2-digit sequential number such as "01." For example, the first part of the number 275134081522001 indicates that the data collection site is in the 1-second quadrangle bounded by latitude 27051'34" on the south and the last part indicates that the quadrangle is bounded by longitude 81052'20" on the east. The "01" remaining is a sequential number and indicates there may be other data collection sites in that 1-second quadrangle. The geogra- phical significance may become a little more clear by reference to figure 16, for the 15-digit number cited above. Once the 8- or 15-digit numbers are assigned, they are not subject to change. Even though the latitude and longitude coordinates may change owing to more accurate mapping, or to a change in the location of the data collection site, the station identification number remains as originally selected. All discharge and water-quality data collected for the springs are available from the U.S. Geological Survey. The identifier numbers just described are important because all the information is filled by these numbers in the Sur- vey's data storage bank. A few springs lack identifying numbers because of poor location information. Others may have two or more numbers; the second assigned without knowledge of the first. Troy Spring in Lafayette is an ex- ample of a data point that has two numbers: Springflow data are filed under the number 02320050, but physical details of the spring and its water-quality data are filed under the 15-digit identifier. So, the use of both numbers is necessary to retrieve all the information for that spring. BULLETIN NO. 31 49 TABLE 7. AN INDEX TO SPRING IDENTIFICATION NUMBERSi FOR THOSE SPRINGS FOR WHICH DISCHARGE OR WATER- QUALITY HAVE BEEN COLLECTED. Spring Names Identification Numbers Alachua County Glen Springs 294027082205000,02240945 Hornsby Spring 295059082353600 Magnesia Spring 293458082090000,02241950 Poe Springs 294933082385800,02322140 Bay County Gainer Springs Spring No. 1 302540085325000,02359480 Spring No. 2 302536085325400,02359479 Spring No. 3 302538085325500,02359478 Pitts Spring 302556085324700 Bradford County Heilbronn Spring 300125082092000,02320951 Citrus County Blue Spring 285809082185200,02312980 Chassahowitzka Springs 284254082343500,02310648, 02310650 Homosassa Springs 284758082352000,02310676, 02310678,02310688 Crystal River Springs Group 285417082381300,02310750 Middle Springs 285317082352100,02310735 Ruth Spring 284357082354800,02310660 Clay County Green Cove Spring 295936081404000,02245342 Wadesboro Spring 300925081432000,02246204 'See section entitled "Springs Identification Numbers" for explanation. Columbia County Bell Springs 301945082411800 Ichetucknee Springs Group 295709082471000,02322700 Blue Hole Spring 295847082453100 Cedar Head Spring 295900082453200 Grassy Hole Spring 295810082453600 Mill Pond Spring 295804082453700 Roaring Springs 295835082453100 Singing Springs 295833082452900 Jamieson Spring 295532082455600 July Spring 295010082414700 Rum Island Spring 294959082404900 Wilson Spring 295359082453100 Dixie County Copper Spring 293650082582600,02323490 Guaranto Spring 294646082562400,02323010 50 BUREAU OF GEOLOGY TABLE 7. AN INDEX TO SPRING IDENTIFICATION NUMBERS. (Cont.) Spring Names Identification Numbers Mystic Spring Chattahoochee Spring Glen Julia Springs Indian Springs Bell Springs Blue Springs Ginnie Spring Hart Springs Lilly Springs Lumber Camp Springs Otter Springs Rock Bluff Springs Sun Springs Dalkeith Springs Adams Spring Alapana Rise Holton Spring Morgans Spring White Springs Boat Spring Bobhill Springs Little Springs Salt Spring Weeki Wachee Springs Buckhorn Spring Eureka Springs Spring No. 1 Spring No. 2 Spring No. 3 Spring No. 4 Lettuce Lake Spring Lithia Springs Messer Spring Palma Ceia Springs Purity Spring Six Mile Creek Spring Sulphur Springs Jackson Spring Ponce de Leon Springs Vortex Blue Spring Escambia County 305125087174800 Gadsden County 304151084505600 303905084422700,02358508 303124084472801 Gilchrist County 293550082563000 294947082405900 295009082420101 294030082570500,02323150 294946082394200 294227082560800 293840082563600,02323200 294756082550800,02322997 294216082560100 Gulf County 300020085090000 Hamilton County 302554083115400 302614083052300 302615083032700 302511083122700 301947082454000,02315503 Hernando County 282621082392900,02310380 282607028383400,02310405 283049082345100,02310505 283245082371000,02310562 283100082342500,02310500 Hillsborough County 275320082182000,02301700 280022082204000 280023082203700 280023082203300 280023082203800 280104082210200 275158082135200,02301600 275340082175000 275520082292200 280118082274000 280104082201800 280115082270500,02306000 Holmes County 304241085554100 304316085555100,02365710 304614085565500 BULLETIN NO. 31 TABLE 7. AN INDEX TO SPRING IDENTIFICATION NUMBERS. (Cont.) Spring Names Identification Numbers Jackson County Black Spring Blue Springs Blue Hole Spring Bosel Spring Daniel Springs Double Spring Gadsen Spring Hays Spring Mill Pond Spring Sand Bag Spring Springboard Spring Tanner Springs Waddels Mill Pond Spring Webbville Spring Wacissa Springs Group Spring No. 2 Blue Spring Big Spring Allen Mill Pond Spring Blue Spring Convict Spring Fletcher Spring Iron Spring Mearson Spring Owens Spring Perry Spring Ruth Spring Steinhatchee Spring Troy Spring Turtle Spring Alexander Springs Apopka Spring Blue Springs Bugg Spring Camp La No Che Spring Holiday Springs Messant Spring Seminole Springs Horn Spring Natural Bridge Spring Rhodes Springs Spring No. 1 Spring No. 2 Spring No. 3 Spring No. 4 St. Marks Spring Jefferson County Lafayette County Lake County Leon County 304153085174001 304725085082600,02358795 304913085144200 304950085140501 305655085182800 304213085181001 304213085171801 305335085133500 304213085182701 304718085132000 304225085182300 304902085193100 305236085204000 305020085200400 301804083584700,02326526 302022083593001 301949083591800,02326520 301940083590500,02326523 300945083143301 300733083133401 300518083054601 295048082533400 294940083182800 300228083013200 300244083022901 300546083111900 295944082583801 295028083182900,02323885 300021082595100,02320050 295055082532400 290450081343000,02236095 283400081405100 284455081494100 284507081540600,02237322 285702082322400,02235180 284354081490500,02237400 285121081295600,02235255 285044081312200,02235250 301909084074400 301706084085000,02326887 301701084092100,023226891 301711084093600,02326889 301661084085200,02326895 301701084092500,02326893 301632084085201,02326900 52 BUREAU OF GEOLOGY TABLE 7. AN INDEX TO SPRING IDENTIFICATION NUMBERS. (Cont.) Spring Names Identification Numbers Levy County Blue Spring 292702082415700,02313450 Fannin Springs 293515082560800,02323502 Manatee Spring 292922082583700,02323566 Wekiva Springs 291649082392300,02313600 Madison County Blue Spring 302849083144000,02319302 Suwanacoochee Spring 302309083101800,02319498 Marion County Fern Hammock Springs 291100081422900,02236132 Juniper Springs 291101081424600,02236130 Orange Spring 293040081564000 Rainbow Springs 290608082261600,02313100 Salt Springs 292100081435800,02236205 Silver Glen Springs 291463081383700,02236160 Silver Springs 291257082031100,02239500 Sweetwater Springs 29130708393600,02236147 Wilson Head Spring 285840082190800 Nassau County Su-No-Wa Spring 302615081530000,02231278 Orange County Rock Springs 284522081300600,02234610 Wekiwa Springs 284243081273600,02234600 Witherington Spring 284353081292200,02234620 Pasco County Crystal Springs 281030082112000,02302000 Horseshoe Spring 282350082412100,02310370 Magnolia Springs 282558082392600,02310410 Salt Springs 281733082430600,02310315 Seven Springs 281251082395700 Pinellas County Health Spring 280622082462100,02309494 Polk County Kissengen Spring 275032081484100,02294758 Putnam County Beecher Springs 292654081384900,02236220 Forest Springs 292725081393500 Mud Spring 292735081394500 Nashua Spring 293033081403400,02244020 Satsuma Spring 293045081403200,02244022 Welaka Spring 292935081402500 Whitewater Springs 293806081385300 Santa Rosa County Chumuckla Springs 305000087174800,02375780 BULLETIN NO. 31 53 TABLE 7. AN INDEX TO SPRING IDENTIFICATION NUMBERS. (Cont.) Spring Names Little Salt Spring Pinehurst Spring Warm Mineral Springs Clifton Springs Elder Spring Heath Spring Lake Jessup Spring Miami Springs Palm Springs Sanlando Springs Starbuck Spring Fenney Springs Gum Springs Anderson Spring Baptizing Spring Betty Spring Bonnet Spring Branford Springs Charles Springs Cow Spring Ellaville Spring Falmouth Spring Ichetucknee Springs Group Ichetucknee Spring Boiling Spring Coffee Spring Lime Spring Little River Springs Luraville Springs Peacock Springs Pump Spring Royal Spring Running Springs Suwannee Springs Suwannee Blue Spring Telford Spring Thomas Spring Walker Spring Blue Spring Camp Ground Spring Carlton Spring Ewing Spring Hampton Springs Waldo Springs Identification Numbers Sarasota County 270430082140000,02299480 271425082303000 27033308215400,02299260 Seminole County 284156081141400 284427081172900 284442081074200 284236081160500,02234351 284236081263400,02234650 284127081233400,02234996 284119081234400,02234991 284148081232800,02234997 Sumter County 284742082021900,02312664 285731082135400 Suwannee County 302112083112300 300801083080400 295453082502400 300727083081700 295717082554400,02320502 301002083135000,02319900 300617083065200 302303083102100,02319502 302140083080700,02319520 295709082471000,02322700 295902082454300 295825082453700 295735082462700 302316083094100 295947082575901 300710083100200 300718083075701 300818083080900 300501083043000 300615083065901 302339082560400,02315600 300453083040700 300624083095700,02320003 30081308313500 300759083075000 Taylor County 295042083332901 300403083331400 300329083351501 300426083395700 300450083394500,02325497 300257083374700,02324930 BUREAU OF GEOLOGY TABLE 7. AN INDEX TO Spring Names Worthington Spring Blue Spring Gemini Springs Green Springs Ponce de Leon Springs Seminole Spring Indian Springs Kini Spring Newport Springs Panacea Mineral Springs Spring A Spring B River Sink Spring Wakulla Springs Euchee Springs Morrison Spring Beckton Springs Blue Spring Blue Springs Cypress Spring Walsingham Spring Williford Spring Bear Creek Spring Cedar Island Spring Cedar Island Springs Spring A Spring B Choctawhatchee Springs Crays Rise Crescent Beach Submarine Spring Crystal Beach Spring Everglades Submarine Spring Freshwater Cave Mud Hole Submarine Spring Ocean Hole Spring Ray Hole Spring Red Snapper Sink Spring Creek Rise Tarpon Springs The Jewfish Hole Unnamed Spring No. 4 SPRING IDENTIFICATION NUMBERS. (Cont.) Identification Numbers Union County 295532082253300,02321503 Volusia County 285650081202300,02235500 285144081183900 285145081145500,02234480 290802081214700,02236110 285044081140500 Wakulla County 301502084194200 301643084203400 301245084104300 300202084232501 300202084232502 301636084202800,02326997 301407084181000,02327000 Walton County 304340086122300 302928085541400,02365580 Washington County 303853085413700,02365990 302712085315200,02359467 303048085504700,02366400 302929085410400,02365986 302832085314300 302621085325200,,02359474 Florida's Submarine Springs 295900084280000 294859083350500 282200082420001 282200082420002 302405086033600 295936084243000 294606081123000 280500082470700 251842081085400 295930083552400 261550082010300 300424084074200 294454084023000 294426080445200 300447084195000 280846082453300 282500082430000 282025082434500 BULLETIN NO. 31 FIGURE 16.- Graphic explanation of the 15-digit identifier a spring site numbering system. DESCRIPTIONS OF INDIVIDUAL SPRINGS This section contains detailed information about Florida's springs. Some of the springs are known to but a few people; others are well known and have been scientifically observed for years. Uniformity of spring descriptions was necessary to obtain the brevity and consistency that would permit in- clusion of most spring descriptions in a single book. Therefore, the descrip- tions were standardized for presentation of spring location, discharge, and BUREAU OF GEOLOGY quality-of-water data. Physical descriptions and utilization data are as com- plete as information permits. Some photographs, interesting historical items, and other information of a special nature were made part of the descriptive material. ALACHUA COUNTY GLEN SPRINGS (Text Figure 1) Location. SE1SE/SW1 sec. 30, T. 9 S., R. 20 E. (lat. 29040'27" N., long. 82020'50" W.). Glen Springs is in the northwest quadrant of the city of Gainesville. On U.S. Hwy 441 drive north 1.5 mi from inter- section with State Hwy 26, turn left (west) onto State Hwy 232A for 0.5 mi, turn left (south) into the Elks Club parking lot; the springs are in the adjacent wooded ravine (fig. 12). Description. Situated in the upper end of a wooded ravine on the edge of a plateau, the springs flow southeastward and are tributary to Hog- town Creek in the northwest end of the Oklawaha River basin. The TEXT FIGURE 1. Glen Springs viewed downstream from head pool. Flow is controlled to two swimming pools. BULLETIN NO. 31 elongate, irregularly-shaped head pool is in limestone bedrock. The head pool is about 20 ft long and 10 ft wide and is enclosed by a concrete wall. This concrete enclosure is convex on its upstream end and flat on its downstream end. A control gate in the downstream end regulates flow to the first of two in-line concrete swimming pools built into the ravine immediately downstream from the springs and behind a club- house. Flow emanates from several small submerged solution channels in the rocks in the bottom of the pool. From the pool, water flows suc- cessively from one swimming pool to the next, thence down the ravine to Hogtown Creek. Discharge. December 10, 1941 0.32 ft3/s April 16, 1946 0.33 April 24, 1956 0.36 October 17, 1960 0.42 April 17, 1972 0.30 Utilization. Used as a private recreational facility. Water Quality.- Analyses by U.S. Geological Survey. Units are in milli- grams per liter unless otherwise indicated. Date of collection Apr. 16 Feb. 24 Apr. 17 1946 1972 1972 Nitrite (N02 as N) Nitrate (N03 as N) Calcium (Ca) Magnesium (Mg) Sodium (Na) Potassium (K) Silica (SiO2) Bicarbonate (HCO3) Carbonate (COa) Sulfate (SO4) Chloride (Cl) Fluoride (F) Nitrate (N03) Dissolved oxygen (DO) Dissolved solids Calculated Residue on evaporation at 1800C Hardness as CaC03 Noncarbonate hardness as CaCOa Alkalinity as CaC03 0.41 15 6.7 3.2 .6 10 3.4 .4 1.8 0.00 .00 19 8.5 3.4 .4 5.4 54 18 4.0 7.0 .4 - 110 95 S83 - 8 74 BUREAU OF GEOLOGY Date of collection Apr. 16 Feb. 24 Apr. 17 1946 1972 1972 Specific conductance (micromhos/cm at 250C) pH (units) Color (platinum cobalt units) Temperature (oC) Biochemical oxygen demand (BOD, 5-Day) Total organic carbon (TOC) Organic nitrogen (N) Ammonium (NH4 as N) Nitrate (NOs as N) Orthophosphate (P04 as P) Total phosphorus (P) Boron (B) Strontium (Sr) Arsenic (As) Cadmium (Cd) Chromium (Cr6) Cobalt (CO) Copper (Cu) Iron (Fe) Lead (Pb) Zinc (Zn) Mercury (Hg) 143 7.0 0 170 7.2 5 22.0 (Micrograms per liter) - 0 - 0 - 0 - 0 - 0 HORNSBY SPRING (Text Figure 2) Location. NENEISE% sec. 27, T. 7 S., R. 17 E. (lat. 29050'59" N., long. 82035'36"W.). The spring is about 1.5 mi N. of the town of High Springs. Drive northwest on U.S. Hwy 441 from the junction with State Hwy 236 for about 1.6 mi, turn right (east) onto the road going to Camp Kuluqua, continue 0.9 mi to the camp. The spring is inside the camp grounds about 300 ft NW. of the camp entrance (fig. 14). Description.- The spring is in a low area surrounded by cypress trees. It forms an elliptical pool about 125 ft wide and 185 ft long oriented westward, and narrowing at its west end to a run in which flow is west- BULLETIN NO. 31 TEXT FIGURE 2. Head of Hornsby Spring looking westward downstream. Spring run in center background. northwest 0.8 mi to the Santa Fe River. The pool is partly enclosed on the east and north by a rock and concrete retaining wall 2 to 3 ft high. A diving platform and board extend out from the east edge of the pool. The spring flow is apparently from the east, from a cavern opening or openings under a submerged limestone ledge a short distance out from the diving board. Depth of water over the ledge, as sounded from the diving board on February 25, 1972 was 16 ft. On that date no boil was evident in the pool and the water was tinted brown. It was otherwise clean and clear and its temperature was 22.50C. (720F.). The spring is subject to backwater from the Santa Fe River. The buildings at the camp occupy high ground bordering the spring on the east and north. Discharge. April 19, 1972 250 ftW/s April 25, 1975 76 Utilization. Used as a swimming and recreational facility by Camp Kulaqua, privately owned and operated by a religious organization. Water Quality.- Analyses by U.S. Geological Survey. Units are in milli- grams per liter unless otherwise indicated. BUREAU OF GEOLOGY Date of collection Nitrite (NO2 as N) Nitrate (N03 as N) Calcium (Ca) Magnesium (Mg) Sodium (Na) Potassium (K) Silica (SiO2) Bicarbonate (HCOa) Carbonate (COs) Sulfate (SO4) Chloride (C1) Fluoride (F) February 25, 1972 0.00 Dissolved solids .00 Calculated 5.7 Residue on evaporation 9.6 at 1800 8.5 Hardness as CaCOs .6 Noncarbonate hardness as 6.3 CaCO3 130 Alkalinity as CaCO3 16 Specific conductance 60 (micromhos/cm at 12 250C) .4 pH (units) Temperature (oC) MAGNESIA SPRING (Text Figure 3) Location. SE'NE/NW sec. 31, T. 10 S., R. 22 E. (lat. 29034'58" N., long. 82009'00"W.). The spring is about 4 mi W. of the town of Hawthorne. Drive west from old U.S. Hwy 301 on State Hwy 20A for 3.8 mi, turn left onto graded road for 0.3 mi to gate, continue 0.1 mi to the spring pool. The spring also may be reached by State Hwy 20A from Grove Park, 1.2 mi NW. of the spring (fig. 12). Description. The spring lies at the base of the sandy pine wooded hills on the east side of the Lochloosa Creek valley. The spring discharges to Lochloosa Creek, which flows into Lochloosa Lake, and is in the Okla- waha River subbasin of the St. Johns River basin. The spring forms a 60-by 75-ft oval-shaped pool enclosed by a concrete wall. The spring reportedly has a clay and sand bottom with two holes formerly about 16 and 30 ft deep. About 90 percent of the flow is believed to come from the deeper of the two holes, which is about 20 ft in diameter at its top and is in the north part of the pool. In 1946 the pool reportedly had been sounded with an iron pipe to a depth of 30 ft. The pipe was pushed downward through soft sand in the bottom an additional 30 ft. When interviewed in February 1972, a former owner of the spring reported that the pipe penetrated only a 4- or 5-ft thickness of soft sand before it encountered clay and scattered hard rocks. The former owner also said that in 1950 a large piece of the clay wall of the hole slumped and blocked much of the flow and reduced the depth of the hole. The temperature of the water on April 16, 1946, taken 1 ft below the surface 230 255 180 50 130 390 8.8 22.5 BULLETIN NO. 31 TEXT FIGURE 3. Magnesia Spring viewed from southeast. Outlet on right to swimming pool not in use. Present outlet at edge of pool in center background. of the water near the pool outlet was 24C. (750F.). Before the middle 1950's, the water was piped to a swimming pool just east of the spring. The water is now allowed to flow from a surface outlet on the north end of the spring pool into an open ditch and thence eastward and southward around the swimming pool to Lochloosa Creek. The swim- ming pool is now supplied with water from five 4-in. flowing artesian wells ranging in depth from 75 to about 120 ft. Discharge. December 10, 1941 1.82 ft3/s April 16, 1946 0.65 April 23, 1956 0.016 October 17, 1960 1.03 April 21, 1972 0.44 Utilization. Privately owned, but open to the public for swimming from April to October. Water Quality.--Analyses by U.S. Geological Survey. Units are in milli- grams per liter unless otherwise indicated. BUREAU OF GEOLOGY Date of collection Apr. 16 Feb. 24 1946 1972 Nitrite (NO2 as N) 0.00 Nitrate (NOs as N) .02 Calcium (Ca) 40 34 Magnesium (Mg) 13 12 Sodium (Na ) 5.6 5.4 Potassium (K) .8 .6 Silica (Si02) 28 26 Bicarbonate (HCOs) 180 170 Carbonate (COs) 0 0 Sulfate (S04) 4.9 5.6 Chloride (CI) 8.2 8.0 Fluoride (F) .3 .4 Nitrate (NO3) .10 Dissolved solids Calculated 180 Residue on evaporation at 1800C 184 181 Hardness as CaC03 150 130 Noncarbonate hardness as CaCO3 0 Alkalinity as CaCOs 140 Specific conductance (micromhos/cm at 250C) 310 300 pH (units) 7.5 8.3 Color (platinum cobalt units) 5 5 Temperature (oC) 20.0 Iron (Fe) (ltg/L) 20 - POE SPRINGS (Text Figure 4) Location. SW1/NW/4NE/4 sec. 6, T. 8 S., R. 17 E. (lat. 29049'33" N., long. 82038'58" W.). Poe Springs is about 3 mi W. of the town of High Springs. Drive southwest on U.S. Hwy 41 and State Hwy 236 from the junction with U.S. Hwy 441 for 0.8 mi, take State Hwy 236 to the right (northwest) about 2.5 mi, turn right (north) onto graded unpaved road bending to the west for 0.6 mi; the springs are directly ahead (fig. 14). Description. Poe Springs form a circular pool about 90 ft in diameter on the wooded south bank of the Santa Fe River. The pool is connected to the river by a northward flowing run about 175 ft long and 40 ft wide. On February 25, 1972, a large boil with two or three minor boils near- BULLETIN NO. 31 TEXT FIGURE 4. Poe Springs viewed from south edge of pool. Spring run in background flows northward to Santa Fe River. by was observed in the central part of the pool where most of the flow issues from a horizontal cavern. The pool reportedly was about 36 ft deep 50 years earlier, but has apparently filled in considerably with sand and debris. The measured depth of the pool in 1946 was 16.6 ft and in 1972 the depth was estimated to be 16 to 17 ft. Inflow to the pool, in adidtion to that from the vicinity of the boils, comes from small springs and seeps in the swampy area immediately adjacent to the main spring. In the mid-1940's the springs formed the center of a com- mercial recreation site used primarily for swimming and picnicking. The pool was enclosed on the south and west by a board and sheet metal wall and the site was complete with bathhouses, refreshment stand and picnic facilities. Except for a few weathered pilings which had sup- ported the bathhouses on the west side of the pool, no evidence of the development remains. The spring had reverted to an essentially natural appearance. Discharge. February 19, 1917 86.5 ft3/s January 31, 1929 75.1 BUREAU OF GEOLOGY March 14, 1932 31.2 December 13, 1941 84.0 July 22, 1946 75.3 May 2, 1956 39.2 October 17, 1960 91.7 April 18, 1972 93.1 Utilization. Privately owned and closed to the public; has been used for family recreation, swimming, and snorkeling. Water Quality.- Analyses by U.S. Geological Survey. Units are in milli- grams per liter unless otherwise indicated. Date of Collection Oct. 31 Jul. 22 Feb. 25 1924 1946 1972 Nitrite (NO2 as N) Nitrate (NOs as N) Calcium (Ca) Magnesium (Mg) Sodium (Na) Potassium (K) Silica (SiO2) Bicarbonate (HCO3) Carbonate (CO3) Sulfate (SO4) Chloride (Cl) Fluoride (F) Nitrate (NOs) Dissolved solids Calculated Residue on evaporation at 180C Hardness as CaCOs Noncarbonate hardness as CaCOs Alkalinity as CaCO3 Specific conductance (micromhos/cm at 250C) pH (units) Color (platinum cobalt units) Temperature (oC) Iron (Fe) (ttg/L) 64 4 5 5 8 200 10 7 204 180 65 .7 6 .7 4 1.7 .7 7 200 0 17 .0 6 210 190 - 0.00 .11 .27 65 i.4 5.3 .4 4.7 .9 .6 '.8 5.5 200 0 16 .8 7.0 .1 .2 .50 .27 - 200 212 180 170 170 368 380 7.3 8.2 5 5 22.0 70 - BULLETIN NO. 31 OTHER SPRINGS BOULWARE SPRING.- This spring is 2 mi SE. of Gainesville (fig. 12). DARBY SPRING. This spring is reported to be about 2 mi N. of the town of High Springs on the left bank of the Santa Fe River at the confluence of the river and the Hornsby Spring run (fig. 14). FORD SPRING. -This spring is 0.5 mi SE. of Melrose (fig. 12). HIGH SPRINGS.- These are several small springs near the town of High Springs and reportedly once used as a water supply (fig. 14). IRON SPRING. -This spring is at Hawthorne (fig. 12). SULPHUR SPRING.- This spring is at Hawthorne (fig. 12). BAY COUNTY GAINER SPRINGS Formerly called Blue Springs, Gainer Springs consists of three major and at least two minor springs. They are not individually named but have been designated Spring 1A, 1B, 1C, 2, 3, and 4. Location.- SWI/ sec. 4, T. 1 S., R. 13 W. (about lat. 30025'35" N., long. 85032'53" W.). Drive 2.3 mi N. from Bennett, at intersection of State Hwy 388 with State Hwy 167, turn west onto winding sand road; about 1 mi to the springs that are along both sides of Econfina Creek (fig. 15). Description. The area surrounding the springs is covered with a dense growth of scrub pine and associated vegetation. To the west, on the opposite side of Econfina Creek, the land rises 80 to 90 ft to a woody knoll, and to the east the land slopes gently up 10 to 20 ft above the water surface. Some swamplike growth occurs along the banks of the creek and spring runs, but generally the area is heavily forested. Gainer Springs No. 1 is north on the sand road from the powerline about 0.3 mi to the head of run trending northeast. (See fig. 17). Lat. 30025'40" N., long. 85o32'50" W. The spring pool farthest to the northeast is No. 1A .It has a diameter of about 20 ft, and a maximum depth of 6 ft at the vent opening which is about 1 ft wide. The circular pool is surrounded with dense swamp- like vegetation that covers it like a canopy. The run exits to the south- west and reaches a maximum width of about 40 ft just before merging with Econfina Creek. Spring No. 1B is about 100 ft downstream of Spring No. 1A, in a de- pression about 12 ft deep in the run of No. 1A. It does not have a pool. Spring No. 1C flows into the run from the southeast about 300 ft farther downstream. The pool has a diameter of about 25 ft and a maximum depth of 13 ft. An 8 ft diameter vent is in the exposed lime- BUREAU OF GEOLOGY FIGURE 17.-Location map of Gainer Springs. stone rock in the bottom of the pool. Bottom sediment is in a state of constant agitation due to the flow from the vent. The combined flow from the three springs enters Econfina Creek about 800 ft downstream from No. 1A. During its course, the run varies in |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| MILLISECOND | CLASS.METHOD | MESSAGE |
|---|---|---|
| 0 | sobekcm_page_globals.constructor | |
| 0 | sobekcm_page_globals.constructor | Application State validated or built |
| 0 | sobekcm_database.verify_item_lookup_object | |
| 0 | sobekcm_page_globals.constructor | Navigation Object created from URI query string |
| 0 | sobekcm_database.verify_item_lookup_object | |
| 0 | sobekcm_page_globals.display_item | Retrieving item or group information |
| 0 | sobekcm_page_globals.get_entire_collection_hierarchy | Retrieving hierarchy information |
| 0 | sobekcm_assistant.get_entire_collection_hierarchy | |
| 0 | cached_data_manager.retrieve_item_aggregation | |
| 0 | cached_data_manager.retrieve_item_aggregation | Found item aggregation on local cache |
| 0 | item_aggregation_builder.get_item_aggregation | Found 'all' item aggregation in cache |
| 0 | system.web.ui.page.page_load (ufdc.page_load) | |
| 0 | sobekcm_page_globals.constructor.on_page_load | |
| 0 | html_echo_mainwriter.add_style_references | Adding style references to HTML |
| 0 | html_echo_mainwriter.add_text_to_page | Reading the text from the file and echoing back to the output stream |
| 3 | html_echo_mainwriter.add_text_to_page | Finished reading and writing the file |