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

E

B'

E'

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

Phosphate (common 

 or abundant; greater

 than 10%)

No data or lithologic 

 description not used

LANDMSL Altitude of land surface, in 

 feet above NGVD 1929

Dolosilt

Shells

Surficial aquifer system

Upper Floridan 

 aquifer

Avon Park permeable zone

Lower Floridan aquifer--uppermost 

 major permeable zone

Hydrogeologic unit

Lower Arcadia Formation marker horizon

Ocala Limestone

Avon Park Formation

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

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 =

53 feet/

day

SC =

27 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

Quartz sandstone

Open-hole interval 

 over which flow 

 was evaluated

Silt or siltstone

Floatstone

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 no flow zones were identified

Flow zone interpreted from increase in flow during drilling

 or a packer hyraulic test or both

Open-hole interval over which no flow zones were identified

Upper Floridan aquifer - 

 presence of groundwater 

 production uncertain

Section of permeable, fractured limestone 

 that may or may not be connected to 

 permeable zone below

Micritic

Moldic porosity

Crystals or 

 crystalline Gypsum

Scientific Investigations Map 3288

Sheet 5 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 E–E'

By

Ronald S. Reese

2014

Packer test data from CDM (2005).

Packer test data from McNabb, Andreyev, and

Metzger, Inc. (2009). Test at depths of 1,827 and

1,897 feet are from 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 below land 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)

†

†

†

†

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

BGTP-1

LANDMSL: 10.65 feet

GR-1

0 (GAPI) 150

XCAL-1

0 (IN) 15

YCAL-1

0 (IN) 15

GR-2

0 (GAPI) 150

XCAL-2

0 (IN) 25

YCAL-2

0 (IN) 25

LithologyFlow zonesHydrogeologic units

Depth, in feet below land surface

Lithologic description not used

Upper boundary of Upper Floridan 

aquifer based on lithologic data

K =

24 feet/

day

K =

15 feet/

day

K =

6 feet/

day

W-17052 (PB-1184)

LANDMSL: 13.03 feet

GR (spliced)

0 (GAPI) 100

XCAL (spliced)

0 (IN) 40

YCAL (spliced)

0 (IN) 40

GR from twin well PB-1185

0 (GAPI) 100

Depth, in feet below land surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological Survey for W-17052.

Packer test data from Geraghty and Miller, Inc. (1991). Flow zones

are from borehole fluid temperature data only. Lithologic description not used

Upper boundary of Upper Floridan aquifer based on lithologic change. 

Lower boundary based on sonic and fluid temperature borehole geophysical data.

Upper boundary of section of highly fractured limestone indicated

by flow zones, geophysical caliper data, and loss of cement during casing installation

†

†

K =

230 feet/

day

K =

9 feet/

day

MF-37 (W-18256, M-1360)

LANDMSL: 22.41 feet

GR (spliced)

0 (GAPI) 200

XCAL

0 (IN) 20

YCAL

0 (IN) 20

Depth, in feet below land surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-18256. Packer and aquifer test 

data from Bennett and others (2004), except for 

tests below depth of 1,500 feet which are from 

Michael Bennett, written commun., South Florida

Water Management District, 2001.

SC =

2 gpm/

foot

SC =

17.7 gpm/

foot

SC =

27 gpm/

foot

K =

53 feet/

day

SC =

106 gpm/

foot

SC =

9 gpm/

foot

SC =

62 gpm/

foot

SC =

27 gpm/

foot

Packer and aquifer test data from well EXPM-1 

at same site

W-5441 (M-1335)

LANDMSL: 17 feet

GR

0 (GAPI) 200

Depth, in feet below land surfaceLithologyHydroge o logic units

Lithologic description from Florida Geological 

Survey for W-5441

Lithologic description

not used

LKOKEE_ASR (W-17095)

LANDMSL: 16 feet

CAL-1

(IN)

(IN)

(IN)

0 20

GAMM-1

0 (CPS) 200

CAL-2

0 20

GAMM-2

(CPS)

(CPS)

0 200

CAL-3

0 20

GAMM-3

0 200

Depth, in feet below land surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida 

Geological Survey for W-17095. Aquifer

test data from McMillan and Verrastro

(2008) for well OKF-106 at same site. Lithologic description not used

Upper boundary of Upper Floridan 

aquifer estimated using gamma ray, 

formation resistivity, and temperature 

borehole geophysical data. Additionally,

a flow zone is indicated between depths

of 726 and 747 feet in well OKF-106 at 

same site. 

† Lower boundary of Upper Floridan 

aquifer not determined because 

of inadequate data

†

K =

70 feet/

day

OUA-EW1

LANDMSL: 29.3 feet

GR-1

0 (GAPI) 100

YCAL-1

0 (IN) 20

GR-2

0 (GAPI) 100

YCAL-2

0 (IN) 20

YCAL-3

0 (IN) 20

XCAL-3

0 (IN) 20

GR-3

0 (GAPI) 100

XCAL-1 & 2

0 (IN) 20

Depth, in feet below land surface

LithologyFlow zonesHydrogeologic units

Lithologic description not used

Upper boundary for Upper Floridan aquifer from 

McNabb Hydrogeologic Consulting, Inc., 

Andreyev Engineering, Inc., and Metzger & Willard, 

Inc. (2009), but not supported by hydraulic data. Lower 

boundary is based on sonic geophysical data activity.

SC =

39 gpm/

foot

SC =

0.05 gpm/

foot

SC =

0.14 gpm/

foot

SC =

0.2 gpm/

foot

SC =

0.1 gpm/

foot

SC =

0.3 gpm/

foot

SC =

1.4 gpm/

foot

SOUTH NORTH

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29 0

–100

–200

–300

–400

–500

–600

–700

–800

–900

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

–1,300

–1,400

–1,500

–1,600

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

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

–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

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

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29

–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

0

–2,500

E E ́

3.9 Miles

(not to scale)

3.6 Miles

(not to scale) 13.7 Miles 8.0 Miles 12.5 Miles 4.6 Miles(not to scale)

Section B–B'

Sections 

C–C',

D–D', and 

X–X'

Section 

A–A'

Intermediate confining unit

Middle semiconfining unit 1

Middle semiconfining unit 2

Lower Floridan confining unit

Surficial aquifer system

Lower Floridan aquifer--

uppermost permeable zone

Avon Park permeable zone

Upper Floridan aquifer

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