SCALE

ATLANTIC OCEAN

LAKE 

OKEECHOBEE

Lake

 Istokpoga

Kissimmee River

St. Lucie Canal

EXPLANATION

PB-1132 Well location and number

Stratigraphic and hydrogeologic 

 section - this figure 

Stratigraphic and hydrogeologic 

 section - other figures

BROWARD COUNTY

PALM BEACH 

COUNTY

MARTIN COUNTY

ST. LUCIE 

COUNTY

OKEECHOBEE 

COUNTY

OSCEOLA COUNTY INDIAN RIVER 

COUNTY

HENDRY COUNTY

COLLIER 

COUNTY

HIGHLANDS 

COUNTY

POLK 

COUNTY

GLADES COUNTY

BGTP-1

CLEW_IW-1

CLEWRO-PW1

FPL-IW2

GLF-5

GLF-6

HASR-DZMW

HIF-42

ICW-1

L2-TW

LAB-TW

LKOKEE_ASR

LRRO-IW1

MF-20

MF-37

MF-40

OKF-100

OKF-105

OUA-EW1

PB-1132

PBF-15

PBF-7

PSL-DMW

TFIW-1

W-15880

W-16182

W-17052

W-5409

W-5435

W-5438

W-5439 W-5441

GLF-0002

BREX-1

ROMP29A

C'

C'

A

A'

X'

B

D

B'

D'

C

C

D

D'

E'

E

X

0 5 10 MILES

0 5 10 KILOMETERS

27°40'

27°20'

1,200,000

1,100,000

27°00'

1,000,000

26°40'

900,000

26°20'

800,000

81°20' 500,000 81°00' 600,000 80°40' 700,000 80°20' 800,000 80°00' 900,000

Easting

Northing

0

0

1.5

1.5

3.0 MILES

3.0 KILOMETERS

Quartz sand

Dolomite

Clay or claystone Shell bed Limestone

Grainstone Packstone Wackestone Mudstone

Phosphatic

 (trace or minor) Dolomitic Sucrosic

Vuggy porosity

Calcareous Fossils or 

 fossiliferous Sandy Silty Clayey

Intermediate confining unit

Middle semiconfining unit

Lower Floridan confining unit

No sample

Lithology

 Accessory lithologic components or modifiers

EXPLANATION

Arcadia Formation

No data or lithologic 

 description not used

LANDMSL Altitude of land surface, in 

 feet above NGVD 1929

Dolosilt

Shells

Anhydrite

Surficial aquifer system

Upper Floridan 

 aquifer

Avon Park permeable zone

Lower Floridan aquifer--uppermost 

 major permeable zone

Hydrogeologic unit

Lower Arcadia Formation marker horizon

Suwannee Limestone--dashed where location is 

 uncertain or formation may not be present

Ocala Limestone

Avon Park Formation--dashed where location is 

 uncertain

Lower Avon Park Formation marker horizon

Lithostratigraphic unit upper boundaries 

Hydrogeologic unit boundaries

Surficial aquifer system

Upper Floridan aquifer--dashed where location 

 is uncertain

Avon Park permeable zone--dashed where 

 location is uncertain

Lower Floridan aquifer, uppermost major 

 permeable zone--dashed where location 

 is uncertain 

Flow zones evaluated in open-hole intervals using 

 borehole flowmeter and fluid properties geophysical 

 data and shown in flow zone column

Borehole geophysical data curves

Description Abbreviation for

geophysical tool or device

Unit of 

measure Description

1 (Spliced) indicates more than one data collection interval is included in the curve. If intervals overlap, splicing was done at the greatest 

depth of the upper interval.

CAL or HCAL

GR (spliced)1

GAMM

XCAL-12

 and YCAL-12

Caliper

Gamma ray

Gamma ray

X-caliper and Y-caliper

(both on same tool and 90 degrees apart)

in.

GAPI

cps

in. 

Inch

American Petroleum Institute

Standard Units

Counts per second

Inch 

2 Number indicates separate data collection intervals with number increasing with depth 

Calcareous 

 dolomite

Dolomitic

 limestone

Heavier black horizontal lines 

 define sample description 

 intervals. Other regularly 

 spaced horizontal lines are

 part of repeated lithologic 

 symbols, such as in

 limestone or dolomite

K =

39 feet/

day

SC =

38 gpm/

foot

Hydraulic test data shown on left side of well plots

Packer test interval and result. Test is done using drill pipe.

 SC is specific capacity, in gallons per minute per foot

 of drawdown

Aquifer test interval and result. Test is done of open interval below casing.

 K is hydraulic conductivity, in feet per day. Values are calculated 

 from transmissivity and thickness of open interval in production well

Chert

Open-hole interval over which no flow zones were identified

Flow zone interpreted from borehole flowmeter and 

 fluid properties geophysical data, unless otherwise noted

Interval not evaluated for flow

Deeper interval not evaluated for flow

Open-hole interval 

 over which flow 

 was evaluated Open-hole interval over which no flow zones were identified

Flow zone interpreted based on increase in flow during drilling,

 or a packer hydraulic test or both

Open-hole interval over which no flow zones were identified

Micritic Moldic porosity

Crystals or 

 crystalline Gypsum

Section of permeable, fractured limestone 

 that may or may not be connected to 

 permeable zone below

Section of permeable, fractured 

 dolomite that may or may not be 

 connected to permeable zone above

Upper Floridan aquifer - 

 presence of groundwater 

 production uncertain

Scientific Investigations Map 3288

Sheet 4 of 8

Pamphlet accompanies map

Prepared in cooperation with the

U.S. Army Corps of Engineers

U.S. Department of the Interior

U.S. Geological Survey

Stratigraphic and hydrogeologic section D–D'

By

Ronald S. Reese

2014

SC =

1.3 gpm/

foot

SC =

0.01 gpm/

foot

SC =

0.33 gpm/

foot

SC =

176 gpm/

foot

SC =

37 gpm/

foot

SC =

30 gpm/

foot

K =

26 feet /day 

K =

31 feet/

day

K =

0.16 feet/

day

K =

0.2 feet/

day

K =

0.44 feet/

day

K =

260 feet/

day

K =

22 feet/

day

K =

12 feet/

day

K =

38 feet/

day

K =

257 feet/

day

K =

6.5 feet/

day

K =

842 feet/

day

K =

39 feet/

day

SC =

0.4 gpm/

foot

SC =

0.08 gpm/

foot

SC =

128 gpm/

foot

SC =

16 gpm/

foot (preacidization)

K =

29 feet/day 

(postacidization)

–1,200

–1,300

–1,400

GLF-6 (W-18253, GL-331)

LANDMSL: 16.21 feet

GR (spliced) 

0 (GAPI) 200

CAL (spliced)

0 (IN) 20

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-18253. Packer test data from

Bennett and Rectenwald (2002). 

Major permeable zone boundaries from 

M. Bennett, 2003, South Florida Water 

Management District, DBHYDRO database

†

Upper boundary of Upper Floridan aquifer 

from Bennett and Rectenwald (2002)

Upper boundary of section of highly fractured

limestone, as indicated by borehole video and

geophysical caliper data

†

†

W-5435

LANDMSL: 13.82 feet

GAMM-2

0 (CPS) 400

CAL

0 (IN) 7

GR-1

0 (GAPI) 125

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida 

Geological Survey for W-5435.

Flow zones based on borehole fluid

properties geophysical data only 

(temperature and spontaneous 

potential).

CLEWRO-PW1

LANDMSL: 19.25 feet

YCAL

0 (IN) 20

GR

0 (GAPI) 150

XCAL

0 (IN) 20

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Flow zones are from nearby 

CLEWRO-PW2 at same site. Hydraulic 

tests with specific capacity results

given are from single-well constant rate

tests of CLEWRO-PW1 (CDM, 2006).

Aquifer test result with hydraulic 

conductivity value given is from 

CLEWRO-PW2 (CDM, 2006).

Lithologic description not used

Geophysical data curves are from 

CLEWRO-PW3 at same site and 

have been shifted up by 30 feet for 

agreement of GR curve with GR 

curve in CLEWRO-PW1

XCAL PW3

0 (IN) 30

YCALPW3

0 (IN) 30

GR PW3

0 (GAPI) 150

CLEW_IW-1

LANDMSL: 19 feet

XCAL-1

0 (IN) 20

GR-1

0 (GAPI) 150

YCAL-1

0 (IN) 20

XCAL-2

0 (IN) 20

YCAL-2

0 (IN) 20

XCAL-3

0 (IN) 20

YCAL-3

0 (IN) 20

GR-2 (spliced)

0 (GAPI) 100

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Lithologic description not used

Upper boundary of Upper Floridan aquifer based 

on sonic and resistivity borehole geophysical data

and lithology. Lower boundary based on sonic 

borehole geophysical data only

K =

3,300 feet/

day

Packer test data from CDM (2007). Tests at depths 

of 1,950 and 2,169 feet are from well CLEW_DZMW-1

at same site.

PBF-7 (W-17542, PB-1777)

LANDMSL: 19.17 feet

GR (spliced)

0 (GAPI) 150

CAL (spliced)

0 (IN) 30

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-17542. Packer and aquifer test data 

from Lukasiewicz and others (2001). Lithologic description not used

Flow zone from Lukasiewicz and others (2001)

Upper boundary of Upper Floridan aquifer from 

Lukasiewicz and others (2001)

†

†

†

†

OKF-100 (W-18255)

LANDMSL: 19.22 feet

GR (spliced)

0 (GAPI) 200

HCAL-1 (spliced)

0 (IN) 20

XCAL-2

0 (IN) 20

YCAL-2

0 (IN) 20

Depth, in feet belowland surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-18255. Packer test data from

U.S. Army Corps of Engineers (2002). Aquifer 

test data is from well EXKR-1 at same site and 

is from U.S. Army Corps of Engineers (2004).

†

†

W-5439

LANDMSL: 13.89 feet

GR

0 (GAPI) 125

Depth, in feet belowland surfaceLithologyHydrogeologic units

Lithologic description from Florida 

Geological Survey for W-5439.

Lithologic description

not used

Lithologic description

not used

GLF-0002

LANDMSL: 13.91 feet

CAL

0 (IN) 6

GAMM

0 (CPS) 400

Depth, in feet belowland surfaceFlow zonesHydrogeologic units

Upper boundary of the Upper 

Floridan aquifer and flow zone 

at depth of 652 feet are from 

South Florida Water 

Management District 

DBHYDRO database

W-5438 Depth, in feet below land surface

LithologyHydrogeologic units

LANDMSL: 

17 feet

Lithologic description 

from Florida Geological 

Survey for W-5438.

W-5409

LANDMSL: 18.17 feet

GR

0 (GAPI) 125

Depth, in feet belowland surfaceLithologyHydrogeologic units

Lithologic description from Florida 

Geological Survey for W-5409.

Intermediate 

confining unit or

Intermediate aquifer 

system

Middle semiconfining unit 1

Middle semiconfining unit 2

Lower Floridan confining unit

Surficial 

aquifer

system

Upper

Floridan

aquifer

Avon Park permeable zone

Lower Floridan aquifer--

uppermost permeable zone

NORTH SOUTH

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29 0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

0

–100

–200

–300

–400

–500

–600

–700

–800

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

–2,100

–2,200

–2,300

–2,400

100

–2,500

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29 0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

–2,100

–2,200

–2,300

–2,400

100

–2,500

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

–2,100

–2,200

–2,300

–2,400

–2,500

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

–1,700

–1,800

–1,900

–2,000

–2,100

–2,200

–2,300

–2,400

–2,500

D D ́

3.2 Miles 9.0 Miles 7.3 Miles 7.8 Miles

(not to scale)

1.0 Mile

(not to scale)

8.0 Miles 3.9 Miles

(not to scale)

1.4 Miles

(not to scale)

14.2 Miles

Sections 

A–A' and X–X'

Section B–B'Sections 

C–C',

D–D', and 

X–X'

Base from U.S. Geological Survey digital data

State Plane Florida East, Datum NAD 83

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not 

imply endorsement by the U.S. Government

This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary 

between electronic plotters and between X and Y directions on the same plotter, and paper may change 

size due to atmospheric conditions; therefore, scale and proportions may not be true on plots of this map.

For sale by U.S. Geological Survey, Information Services, Box 25286, Federal Center, Denver, CO 80225, 

1–888–ASK–USGS

Digital files available at http://dx.doi.org/10.3133/sim3288

Suggested Citation: Reese, R.S., 2014, Hydrogeologic framework and geologic structure of the Floridan 

aquifer system and intermediate confining unit in the Lake Okeechobee area, Florida: U.S. Geological 

Survey Scientific Investigations Map 3288, scale 1:24,000 [http://dx.doi.org/10.3133/sim3288].

ISSN 2329-132X (online)

Map location

F l o r i d a