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 

A'

Stratigraphic and hydrogeologic 

 section - other figures

B'

A

B

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'

A

A'

X'

B

B'

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 Silt or siltstone

Dolomite

Clay or claystone Shell bed

Micritic

Limestone

Grainstone Packstone Wackestone Mudstone

Phosphatic

 (trace or minor)

Dolomitic

Sucrosic

Moldic porosity Vuggy porosity Crystals or 

 crystalline

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

Anhydrite Gypsum

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

Ocala Limestone

Avon Park Formation

Lower Avon Park Formation marker horizon--

 dashed where location is less certain

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

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

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

Section of permeable, fractured limestone 

 that may or may not be connected 

 to permeable zone below

Upper Floridan aquifer - 

 presence of groundwater 

 production uncertain

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

Scientific Investigations Map 3288

Sheet 1 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 A–A'

By

Ronald S. Reese

2014

Aquifer test data from Missimer 

Groundwater Science (2007).

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)

Surficial aquifer system

Upper Floridan aquifer

Avon Park permeable zone

Intermediate confining unit or

Intermediate aquifer system

Middle semiconfining unit 1

Middle semiconfining unit 2

Lower Floridan confining unit

Lower Floridan aquifer-- uppermost major permeable zone

Well-to-well

connectivity is 

uncertain

Well-to-well connectivity 

is uncertain

GLF-5 (GL00014)

LANDMSL: 31 feet

CAL

0 (IN) 20

GAMM

0 (CPS) 20

Depth, in feet below land surfaceFlow zonesHydrogeologic units

Flow zones determined based on borehole 

geophysical fluid properties data only.

W-15880 (P-1193)

LANDMSL: 30 feet

GR

0 (GAPI) 150

Depth, in feet below land surfaceLithologyHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-15880.

Hydrogeologic unit boundary based on sonic borehole geophysical data

BREX-1

LANDMSL: 24 feet

XCAL-1

0 (IN) 20

YCAL-1

0 (IN) 20

XCAL-2

0 (IN) 20

YCAL-2 

0 (IN) 20

GR (spliced) 

Depth, in feet below land surface

0 (GAPI) 150

LithologyFlow zonesHydrogeologic units

†Upper boundary of highly 

fractured section, as indicated 

by borehole video and geophysical 

caliper and sonic data, consisting 

predominantly of limestone 

(Missimer Groundwater 

Science, 2007)

†Lithologic description not used

SC =

2.4 gpm/

foot

K =

0.8 foot/

day

SC =

98.7 gpm/

foot

SC =

105 gpm/

foot

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

Depth, in feet below land surface

0 (IN) 20

LithologyFlow 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). Lithologic description not used

†

†

Upper boundary of section of highly fractured 

limestone, as indicated by borehole video and 

geophysical caliper data

SC =

0.4 gpm/

foot

SC =

128 gpm/

foot

K =

70 feet/

day

SC =

0.08 gpm/

foot

SC =

128 gpm/

foot

SC =

16 gpm/

foot (preacidization)

K =

29 feet/day (postacidization)

Depth, in feet below land surface

LKOKEE_ASR (W-17095)

LANDMSL: 16 feet

CAL-3

0 20

GAMM-1 

0 200

CAL-1

0 20

GAMM-2

0 200

CAL-2

0 20

GAMM-3

0 200

LithologyFlow zonesHydrogeologic units

(IN)

(CPS)

(IN)

(IN)

(CPS)

(CPS)

Lithologic description from Florida Geological 

Survey for W-17095. Aquifer test data from McMillan 

and Verrastro (2008) for well OKF-106 at same site. 

‡

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. 

Lithologic description 

not used

Lower boundary of Upper Floridan aquifer

not determined because of inadequate data.

‡

K =

70 feet/

day

MF-20 (W-14666, M-1076)

LANDMSL: 32 feet

CAL

0 (IN) 20

GAMM

0 (CPS) 200

Depth, in feet below land surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-14666

MF-40 (W-18726)

LANDMSL: 33.25 feet

XCAL-1

0 (IN) 20

YCAL-1

0 (IN) 20

XCAL-3

0 (IN) 20

YCAL-3

0 (IN) 20

GR

0 (GAPI) 200

CAL-2

0 (IN) 20

Depth, in feet below land surfaceLithologyFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-18726. Aquifer test data from 

production well MF-41 at same site 

(Sunderland, 2008).

K =

1,400 feet/

day

Upper boundary of Upper Floridan aquifer

estimated using gamma ray, formation resistivity, 

caliper, and lithologic data.

†

† Avon Park permeable zone in MF-40 is hydraulically 

connected with Upper Floridan aquifer based on 

aquifer tests (Sunderland, 2008).

K =

5,400 feet/

day

PSL-DMW (STL-387)

LANDMSL: 14 feet

XCAL

0 (IN) 20

YCAL

0 (IN) 20

GR

0 (GAPI) 150

Depth, in feet below land surfaceFlow zonesHydrogeologic units

10.4 Miles 4.9 Miles 16.2 Miles 7.6 Miles 12.1 Miles 9.3 Miles 10.8 Miles Section 

X–X’

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

–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

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

0

–100

–200

–300

–400

–500

–600

–700

–800

–900

–1,000

–1,100

–1,200

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

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

–1,900

–2,000

–2,100

–2,200

–2,300

–2,400

Altitude, in feet below NGVD 1929Altitude, in feet below NGVD 1929

SOUTHWEST

A

NORTHEAST

A ́

Section E–E’

Land surface

Datum

NGVD 29

Datum

NGVD 29

Land surface

100

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

–2,100

–2,200

–2,300

–2,400

100

Base from U.S. Geological Survey digital data

State Plane Florida East, Datum NAD 83

Map location

F l o r i d a