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

B 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'

C'

A

A'

X'

B

B'

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 Silt or siltstone

Dolomite

Clay or claystone

Micritic

Limestone 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--dashed where location 

 is uncertain

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--dashed where location 

 is uncertain

Lower Avon Park Formation marker horizon--

 dashed where location is uncertain

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

Open-hole interval 

 over which flow 

 was evaluated

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 Upper Floridan aquifer - 

 presence of groundwater 

 production uncertain

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

Quartz sandstone

Chert

Open-hole interval over which no flow zones were identified

Flow zone interpreted from borehole flowmeter and 

 fluid properties geophysical data

Interval not evaluated for flow

Deeper interval not evaluated for flow

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

Connection between wells in zone is

 uncertain

?

Shell bed

Grainstone

Scientific Investigations Map 3288

Sheet 3 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 C–C'

By

Ronald S. Reese

2014

–100

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–1,000

–1,100

–1,200

–1,300

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–1,600

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–2,000

–2,100

–2,200

–2,300

–2,400

0

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–900

–1,000

–1,100

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–2,000

–2,100

–2,200

–2,300

–2,400

0

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–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

0

–100

–200

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–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

0

SC =

15 gpm/

foot

SC =

0.43 

gpm/foot

SC =

0.04

gpm/foot

SC =

0.6 gpm/

foot

SC =

0.4 gpm/

foot

K =

3.3 feet/

day

SC =

6.25

gpm/foot

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

K =

0.3 feet/

day

K =

0.15 feet/

day

K =

0.01 feet/

day

SC =

0.03 gpm/

foot

SC =

0.153 gpm/

foot

SC =

19.5 gpm/

foot

SC =

14.3 gpm/

foot

SC =

26.9 gpm/

foot

Surficial aquifer system

Upper Floridan aquifer

Lower Floridan aquifer--uppermost

permeable zone

Avon Park permeable zone

Intermediate confining unit or

Intermediate aquifer system

Middle semiconfining unit 1

Middle semiconfining unit 2

Lower Floridan confining unit

Packer test data from Palm Beach County 

Water Utilities Department (2009) 

Packer test data from McNabb 

Hydrogeologic Consulting, Inc. (2009) 

Flow zones from flowmeter data collected in 

associated dual zone monitoring well at same site

L2-TW (W-17093, HE-1087)

LANDMSL: 17 feet

XCAL-2

6 (IN) 12

YCAL-2

6 (IN) 12

GR (spliced)

0 (GAPI) 125

CAL-I (spliced)

0 (IN) 20

LithologyDepth, in feet belowland surfaceFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-17093. Packer and aquifer test 

data from Bennett (2001)

Hydrogeologic unit boundary from 

Bennett (2001)

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

LANDMSL: 19.17 feet

GR (spliced)

0 (GAPI) 150

CAL (spliced)

0 (IN) 30

LithologyDepth, in feet belowland surfaceFlow zonesHydrogeologic units

Lithologic description from Florida Geological 

Survey for W-17542. Packer and aquifer test 

data from Lukasiewicz and others (2001). 

Flow zone from Lukasiewicz and others (2001) Lithologic description not used

Upper boundary of Upper Floridan aquifer from 

Lukasiewicz and others (2001) 

†

†

†

†

LRRO-IW1

LANDMSL: 15 feet

XCAL-1

0 (IN) 60

YCAL-1

0 (IN) 60

GR-1

0 (GAPI) 40

GR-2 (spliced)

0 (GAPI) 40

YCAL-2 (spliced)

0 (IN) 25

XCAL-2 (spliced)

0 (IN) 25

LithologyDepth, in feet belowland surfaceFlow zonesHydrogeologic units

Lithologic description not used

Upper boundary of Upper Floridan aquifer 

from Palm Beach County Water Utilities 

Department (2009) 

K =

0.1 feet/

day

PB-1132

LANDMSL: 28.6 feet

GR

0 (GAPI) 100

Depth, in feet belowland surfaceLithology

Lithologic description from Reese and 

Memberg (2000)

Lithologic description 

not used

FPL-IW2

LANDMSL: 23 feet

GR-1

0 (GAPI) 150

XCAL-1

0 (IN) 20

YCAL-1

0 (IN) 20

GR-2 (spliced)

0 (GAPI) 100

XCAL-2 (spliced)

0 (IN) 20

YCAL-2 (spliced)

0 (IN) 20

LithologyFlow zonesHydrogeologic unitsDepth, in feet belowland surface

Lithologic description not used

Upper boundary of Upper Floridan 

aquifer from McNabb Hydrogeologic 

Consulting, Inc. (2009) and based

on lithologic change

PBF-15 (W-18728)

GR-1

0 (GAPI) 150

GR-3

0 (GAPI) 150

CAL-2

0 (IN) 40

XCAL-3

0 (IN) 40

YCAL-3

0 (IN) 40

GR-2

0 (GAPI) 150

CAL-1

0 (IN) 40

LithologyFlow zonesHydrogeologic units

LANDMSL: 24.19 feet Depth, in feet below land surface

Lithologic description from Florida Geological 

Survey for W-18728. Packer test data from

Anderson (2008)

Lithologic description 

not used

Upper boundary of Upper Floridan aquifer 

based on minor losses of drilling fluids 

during drilling

?

?

?

?

W-16182 (PB-1176)

LANDMSL: 17.83 feet

GR (spliced)

0 (GAPI) 150

CAL (spliced)

0 (IN) 20

LithologyFlow zonesHydrogeologic unitsDepth, in feet belowland surface

Lithologic description from Florida Geological 

Survey for W-16182

Flow zone at depth of 908 feet is based on borehole 

temperature geophysical data and zone of lost 

circulation

Lithologic 

description

not used

†

†

†

†

†

SOUTHWEST

C

NORTHEAST

C ́

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–2,100

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–2,300

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–2,500

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29

100

0

–2,500

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0

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–2,100

0

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–2,000

–2,100

–2,200

–2,300

–2,400

–2,500

Altitude, in feet below NGVD 1929

Land surface

Datum

NGVD 29

100

0

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0

15.7 Miles 2.8 Miles

(not to scale) 13.0 Miles 3.4 Miles(not to scale) 7.1 Miles 8.0 Miles

Sections D–D',E–E’, and 

X–X'

?

?

?

Base from U.S. Geological Survey digital data

State Plane Florida East, Datum NAD 83

Well-to-well

connectivity is 

uncertain

Well-to-well

connectivity is 

uncertain

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