Water levels in artesian and nonartesian aquifers of Florida ( FGS: Information circular 48 )

STATE OF FLORIDA
STATE BOARD OF CONSERVATION
DIVISION OF GEOLOGY

FLORIDA GEOLOGICAL SURVEY
Robert O. Vernon, Director

INFORMATION CIRCULAR NO. 48

WATER LEVELS IN ARTESIAN AND NONARTESIAN
AQUIFERS OF FLORIDA, 1961-62

By
Henry G. Healy

Prepared by the
UNITED STATES GEOLOGICAL SURVEY
in cooperation with the
FLORIDA GEOLOGICAL SURVEY AND
OTHER STATE AND LOCAL AGENCIES

TALLAHASSEE
1966

Completed manuscript received
October 25, 1965
Printed by the Florida Geological Survey (116)
Tallahassee
1966

ii

CONTENTS

Page

Introduction ................................. ........... .......
Well-numbering system ......... ......... .......................
Principal aquifers ..............................................
Northwestern Florida...........................................
Pensacola area...............................................

Ft: Walton area..............
Panama City area.............
Northern and North-Central Florida
Tallahassee area ............
Fernandina-Jacksonville area ..
Central Florida .................
Tampa-St.. Petersburg area .....
Lakeland area ...............
Orlando area.................
Cape Kennedy area ..........
Sarasota-Bradenton area.......
Southern Florida ................
Ft. Myers area ...............
Stuart-West Palm Beach area...
Ft. Lauderdale area ..........
Miami area ................
Appendix ......................

ILLUSTRATIONS

Figure

1 Map showing observation-well network, December 1962, and
the extent of principal aquifers and sources of ground-water
supplies in Florida .....................................
2 Diagram of explanation of well-numbering system ...........
3 Map showing piezometric surface and areas of flow of the.
Floridan aquifer, in Florida, July 6-17, 1961 ...............
4 Map showing locations of observation wells in northwestern
Florida for which hydrographs are given ....................
5 Graph showing total yearly pumpage, City of Pensacola,
F lorida ...............................................
6 Hydrographs showing trends and fluctuations of water levels
in wells Escambia 45, 46, and 62, Pensacola area ..........
7 Graphs showing trends and fluctuations of ground-water levels
in well Escambia 62 and departures from monthly normal
precipitation at Pensacola, 1960-62 .......................
8 Hydrographs showing trends and fluctuations of water levels
in wells Okaloosa 3, 25, and 31, Ft. Walton Beach area ......

Page

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. .. ..... .
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. . . .
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...............................
............ ...................

9 Map showing net change of ground-water levels, Pensacola
and Ft. Walton area, May 1951 to May .1960 ................ 13
10 Map showing net change of ground-water levels, Pensacola
and Ft. Walton areas, May 1960 to May 1962 ............... 14
11 Graph showing total yearly pumpage, Panama City, Florida .. 16
12 Hydrographs showing trends and fluctuations of water levels
in wells Walton 13 at Point Washington, Bay 7 at Panama
City, and Washington 4 at Caryville ....................... 17
13 Map showing locations of observation wells in northern and
north-central Florida for which hydrographs are given ....... 18
14 Graph showing total yearly pumpage, City of Tallahassee,
Florida ............................... ..... ........... 19
15 Graphs showing trends and fluctuations of ground-water levels
and departures from normal monthly precipitation at Tallahassee,
1960-62 ................................................. 21
16 Hydrographs showing trends and fluctuations of water levels
in wells Leon 7 at Tallahassee, Madison 18 near Madison,
Columbia 9 at Lake City, and Nassau 12 near Fernandina,
Florida .............. ...... .... ........ ............. 22
17 Graph showing total yearly pumpage, City of Jacksonville,
Florida .......... ...... ............... ..... ............ 23
18 Hydrographs showing trends and fluctuations of water levels
in wells Nassau 51 at Callahan, Duval 122 at Jacksonville,
Duval 164 near Mayport, Marion 5 near Ocala, and Putnam 29
at Palatka, Florida .......... ........... ....... ....... 24
19 Maps showing net change of ground-water levels in the Jack-
sonville and Fernandina areas, May 1951 to May 1960 to May
1962 ................................................... 25
20 Map showing locations of observation wells in central Florida
for which hydrographs are given ......................... 26
21 Hydrographs showing trends and fluctuations of water levels in
wells Pasco 13 near Ehrin and Hillsborough 13 near Citrus Park,
Tampa area ....................... .................... 27
22 Graphs showing trends and fluctuations of water levels in
well Hillsborough 13 and departures from normal monthly pre-
cipitation at Tampa, 1960-62 ........................ 28
23 Hydrographs showing trends and fluctuations of water levels
in wells Hillsborough 30 near Ruskin, Pinellas 13 at Tarpon
Springs, and Pinellas 246 at Clearwater .................. 29
24 Graphs showing changes in chloride content in wells Pinellas
592 at Bay Pines and 166 at Dunedin, St. Petersburg area ... 30
25 Graph showing total yearly pumpage, City of Lakeland,
Florida .......................... .... ................. 31
26 Graphs showing trends and fluctuations of water levels in well
Polk 45 near Lakeland and departures from normal monthly
precipitation at Lakeland, 1960-62 ........................ 32
27 Hydrographs showing trends and fluctuations of water levels
in wells Polk 44 and 47 near Davenport and Polk 45 near
Lakeland, Lakeland area ............................... 33
28 Hydrographs showing trends and fluctuations of water levels
in wells Polk 49 near Frostproof, Polk 51 at Frostproof and
Highlands 10 near Sebring .............. ............... 34

29 Hydrographs showing trends and fluctuations of water levels
in wells Highlands 13, Osceola 183, and Okeechobee 3 in
the Kissimmee Valley ................................... 35
30 Graphs showing trends and fluctuations of water levels in
wells Orange 47 and 47B near Orlando and departures from
normal monthly precipitation at Orlando, 1960-62 ........... 36
31 Hydrograph showing trends and fluctuations of water levels
in well Orange 47, near Orlando ......................... 37
32 Hydrographs showing trends and fluctuations of water levels
near Cape Kennedy and eastern-central coastal Florida...... 38
33 Hydrographs showing trends and fluctuations of water levels
in wells Manatee 92 and Sarasota 9, Sarasota-Bradenton area. 40
34 Map showing locations of wells in southern Florida for which
hydrographs are given .................................. 41
35 Graphs showing trends and fluctuations of water levels in
well Lee 246 near Ft. Myers and departures from normal
monthly precipitation at Ft. Myers, 1960-62 ............... 42
36 Hydrographs showing trends and fluctuations of water levels
in wells Lee 246 near Ft. Myers, Collier C54 and 131 Ever-
glades, and Martin 147 near Stuart, Florida ................ 43
37 Graph showing total yearly pumpage, City of Stuart, Florida.. 44
38 Graphs showing trends and fluctuations of water levels in
well Palm Beach 88 and departures from monthly normal
precipitation at West Palm Beach, 1960-62 ................ 45
39 Hydrographs showing trends and fluctuations of water levels
in wells Palm Beach 88 near West Palm Beach, Broward G561
and G617 near Ft. Lauderdale, and Dade G553 near Miami ... 46
40 Hydrographs showing trends and fluctuations of water levels
in wells Broward F291 at Hollywood, Dade S18 near Miami,
Dade S196A near Redland, Dade F179 at Miami, and Broward
8329 near Ft. Lauderdale ............................... 47
41 Graph showing changes in chloride content of water in wells
Broward G514 and S830 near Ft. Lauderdale, and Dade F296
and F64 near Miami .......................... .......... 48
42 Graphs showing trends and fluctuations of water levels in
well Dade S196A, and departures from monthly normal preci-
pitation at Homestead Experimental Station, 1960-62 ........ 49
43 Hydrographs showing trends and fluctuations of water levels
in wells Dade S19 and G10 near Miami, and Dade G72 north-
west of Opalocka ......... ............................. 50
44 Hydrographs showing trends and fluctuations of water levels
in wells Dade G596, G618, G613, and G620 in central Dade
County ................................. .............. 51
45 Graphs showing changes in chloride content of water in wells
Dade G354 and G580 near Miami and Dade G469, S529, and
G212 in southeastern Dade County ....................... 52

'able
1 Well and water-level data for selected observation wells in
Florida ................... ............................. 53

Pave

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ERRATA

Florida Geological Survey Information Circular 48
"Water levels in artesian and nonartesian
aquifers of Florida, 1961-62"

iv -- Figure 21 -- Ehren not Ehrin

5 -- Paragraph 3, line 5, Broward not Brevard

11 -- Paragraph 1, line 4, 10 million not 100 million

11 -- Paragraph 2, line 3, 98 feet not 58 feet

11 -- Paragraph 2, line 12 (p. 17) not (p. 19)

15 -- Paragraph 4, line 7, 77 feet not 76 feet

20 -- Paragraph 2, line 6, 1945-62 not 1946-62

20 -- Paragraph 6, line 4, 15 feet not 16 feet

20 -- Paragraph 6, line 6, 13 feet not 14 feet

25 -- Figure 19: Left figure: May 1951-May 1960
Right figure: May 1960-May 1962

27 -- Paragraph 1, line 4, Ehren not Ehrin

30 -- Paragraph 1, line 3, 65000 million gallons

31 -- Paragraph 3, line 9, Highlands 13 (fig. 29)

37 -- Paragraph 1, line 4, maximum fluctuation of abo

39 -- Paragraph 1, line 1, three not four

39 -- Paragraph 4, line 3: 0.3 foot

39 -- Paragraph 5, line 3: shown on page 41

49 -- Paragraph 3, line 3, at Redland

ut 22 feet

WATER LEVELS IN ARTESIAN AND NONARTESIAN
AQUIFERS OF FLORIDA, 1961-62

By
Henry G. Healy

INTRODUCTION

The purpose of this report is to summarize the trends and
fluctuations of ground-water levels in the principal aquifers in
Florida during 1961-62. The report includes the following: (1)
hydrographs showing trends and fluctuations of ground-water
levels in the several aquifers used as a source of water; (2) maps
showing changes in ground-water levels during specific periods;
and, (3) a table summarizing the principal data on selected obser-
vation wells. Observation wells for which records are available are
listed in the "Index to Water Resources Data-Collection Stations
in Florida, 1961" Florida Geological Survey Special Publication
No. 11. The index, prepared by the U.S. Geological Survey in coop-
eration with the Florida Geological Survey includes the location,
aquifer, and type and period of records available for 3,629 obser-
vation wells.

Since World War II, and particularly during the last decade,
the demand for fresh water for industrial, municipal, and agricul-
tural use in Florida has increased yearly. Although ground-water
supplies have been adequate for the increased demand in most
areas in Florida, water levels have declined appreciably in some
areas where industrial and municipal use of ground water has in-
creased. The supply of ground water is limited though generally
adequate. Because demand for ground water continues to increase,
shortages will occur and may become critical in some areas. In
coastal areas, declining water levels may allow salt water to
encroach and shortages could result from deterioration in quality
as well as from the reduction of quantity of water available. In
order to prevent future shortages, the present supplies of ground
water must be properly appraised and utilized. Records of trends
and fluctuations of ground water have long formed a basis for the
appraisal of ground-water resources.

The principal objective of the investigations of the Water
Resources Division of the U.S. Geological Survey is to appraise
and to evaluate the Nation's water resources. Although many types
of ground-water investigations are carried out on State-wide basis

FLORIDA GEOLOGICAL SURVEY

throughout the Nation, the collection and compilation of basic
hydrologic data constitute an important part of the water resources
studies.

Other principal objectives of the hydrologic data program
include: the evaluation of available ground-water supplies; the
prediction of trends of important ground-water supplies in the
future and the delineation of present or potential areas of detri-
mentally high or low ground-water levels. Water levels are used
to predict the base flow of streams, to determine the several
forces that act on a water-bearing formation or aquifer, to demon-
strate the interplay of those forces in the ground-water environ-
ment and to furnish information for use in basic research. The
hydrologic data program is an important adjunct of the several
types of geologic and hydrologic methods of study used in water-
resources investigations.

The hydrologic data-collection program of the U.S. Geologi-
cal Survey is part of the cooperative investigations of the ground-
water resources of Florida, in cooperation with the Florida Geo-
logical Survey and other state and local agencies and municipali-
ties. The observation-well network in 1962 included about 1,000
observation wells in the 67 counties of the Stale. Figure 1 shows
the locations of the observation wells in the Stale-wide network.
Table 1 lists data on 335 observation wells selected from the
State-wide network of wells.

The water-level data used in this report represent measure-
ments taken from automatic water-stage recorder charts, pressure
gages, and those made by wet tape. In general, water-level mea-
surements made by tape and stage recorder are shown to the near-
est hundredth of a foot, and those made with a pressure gage are
shown to the nearest tenth of a foot.

Table 1 summarizes well-data and water-level information
for the several aquifers. Well data include the aquifer, depth of
well, and depth of casing. The items: "Year record began" and
"Frequency of measurements" are included as part of the well
data. In the water-level portion of the table, levels for May or
June are used because records are available for these months for
a large percentage of the wells. Also, ground-water levels gene-
rally are lowest during May or June in many areas and records
during that period constitute a base for comparison from year to
year. The highest and lowest levels of record for May or June
prior to 1961 are given in the table.

INFORMATION CIRCULAR NO. 48

Figure 1. Map showing observation-well network, December 1962, and the
extent of principal aquifers and sources of ground-water supplies
in Florida.

FLORIDA GEOLOGICAL SURVEY

The hydrologic data program consists of the collection,
tabulation, interpretation, evaluation, and publication of water-
level and related data. Water levels for selected wells are pub-
lished, at present, once every five years in the U.S. Geological
Survey Water-Supply Papers.

Information pertinent to ground water is also published in
interpretative reports of investigations published by the Flori'da
Geological Survey and the U. S. Geological Survey. Data collected
during an investigation and subsequent to that published are
available from the District Chief, U. S. Geological Survey, P. O.
Box 2315, Tallahassee, Florida 32304.

WELL-NUMBERING SYSTEM

Two well-numbering systems are used in this report. Obser-
vation wells in Florida may be numbered serially by counties
and/or by a grid-coordinate system based on latitude and longitude
of the well location. Frequently, where wells have been renum-
bered both numbers have been assigned to the well e.g. a well
number may be shown as 20(008-537-2). This affords a tie-in with
water-level data published previously under well number 20 in
Bay County with data that may be published for the same well
under number 008-537-2.

Some wells used in table 1 have numbers with a letter prefix
or suffix. In Broward and Dade counties, the letter prefixes G, S,
F, and NP denote Geological Survey wells, supply wells, fire
wells, and National Park Service wells, respectively. In Dade,
Escambia, Highlands, Holmes, and Leon counties, the letter
suffix A denotes a shallow well near a deeper well having the
corresponding number without the letter suffix. In Orange County,
the letter suffixes B and C denote wells drilled in the vicinity
of well 47.

The grid-coordinate well-numbering system in Florida is
derived from latitude and longitude coordinates. The latitude and
longitude prefix north and west and the first digit of the degree
number are not included in the well number.

The well number is a composite of three numbers separated
by hyphens: the first number is composed of the last digit of the
degree and the two digits of the minute that define the latitude on

INFORMATION CIRCULAR NO. 48

the south side of the 1-minute quadrangle; the second number is
composed of the last digit of the degree and two digits of the
minutes that define the longitude on the east side of a 1-minute
quadrangle; and, the third number gives the numerical order in
which the well was inventoried in the 1-minute quadrangle. For
example, well number 835-105-1 is the first well inventoried in the
1-minute quadrangle north of the 28035' parallel of latitude and
west of the 81005' meridian of longitude. The location of well
835-105-1 is shown diagrammatically in figure 2.

PRINCIPAL AQUIFERS

Ground-water supplies for industrial, agricultural, and munici-
pal use in Florida are available from three principal aquifers:
The Floridan aquifer in central and northern Florida; the Biscayne
aquifer in southeastern Florida; and, the sand-and-gravel aquifer
in the extreme northwestern part of Florida. The generalized areal
extent of the aquifers supplying most of the ground-water is shown
in figure 1.

The Floridan aquifer, which underlies all of the State, is the
principal source of water in central, northern, and most of north-
western Florida, as shown in figure 3. Highly mineralized water
precludes the usefulness of the Floridan aquifer as a source of
potable water in some coastal areas and in most of southern
Florida. In those areas, shallow artesian and nonartesian aquifers
are the source of supply.

The Biscayne aquifer in southeastern Florida is the chief
source of water supply for industries, municipalities, and irriga-
tion. This aquifer, one of the most highly productive of the shallow
nonartesian aquifers in the world, underlies about 3,500 square
miles of Brevard, Dade, and Palm Beach counties. The useful-
ness of the Biscayne aquifer is sharply restricted in areas adja-
cent to the coast because of the presence of saline waters.

The sand-and-gravel aquifer in extreme northwestern Florida
is the principal source of water supply, yielding large supplies of
ground water for industries and municipalities. The aquifer ex-
tends beneath all of Escambia and Santa Rosa counties and part
of western Okaloosa County.

This report of ground-water conditions has been divided into
four parts as follows: (1) Northwestern Florida, (2) northern,

FLORIDA GEOLOGICAL SURVEY

The hydrologic data program consists of the collection,
tabulation, interpretation, evaluation, and publication of water-
level and related data. Water levels for selected wells are pub-
lished, at present, once every five years in the U.S. Geological
Survey Water-Supply Papers.

Information pertinent to ground water is also published in
interpretative reports of investigations published by the Flori'da
Geological Survey and the U. S. Geological Survey. Data collected
during an investigation and subsequent to that published are
available from the District Chief, U. S. Geological Survey, P. O.
Box 2315, Tallahassee, Florida 32304.

WELL-NUMBERING SYSTEM

Two well-numbering systems are used in this report. Obser-
vation wells in Florida may be numbered serially by counties
and/or by a grid-coordinate system based on latitude and longitude
of the well location. Frequently, where wells have been renum-
bered both numbers have been assigned to the well e.g. a well
number may be shown as 20(008-537-2). This affords a tie-in with
water-level data published previously under well number 20 in
Bay County with data that may be published for the same well
under number 008-537-2.

Some wells used in table 1 have numbers with a letter prefix
or suffix. In Broward and Dade counties, the letter prefixes G, S,
F, and NP denote Geological Survey wells, supply wells, fire
wells, and National Park Service wells, respectively. In Dade,
Escambia, Highlands, Holmes, and Leon counties, the letter
suffix A denotes a shallow well near a deeper well having the
corresponding number without the letter suffix. In Orange County,
the letter suffixes B and C denote wells drilled in the vicinity
of well 47.

The grid-coordinate well-numbering system in Florida is
derived from latitude and longitude coordinates. The latitude and
longitude prefix north and west and the first digit of the degree
number are not included in the well number.

The well number is a composite of three numbers separated
by hyphens: the first number is composed of the last digit of the
degree and the two digits of the minute that define the latitude on

INFORMATION CIRCULAR NO. 48

the south side of the 1-minute quadrangle; the second number is
composed of the last digit of the degree and two digits of the
minutes that define the longitude on the east side of a 1-minute
quadrangle; and, the third number gives the numerical order in
which the well was inventoried in the 1-minute quadrangle. For
example, well number 835-105-1 is the first well inventoried in the
1-minute quadrangle north of the 28035' parallel of latitude and
west of the 81005' meridian of longitude. The location of well
835-105-1 is shown diagrammatically in figure 2.

PRINCIPAL AQUIFERS

Ground-water supplies for industrial, agricultural, and munici-
pal use in Florida are available from three principal aquifers:
The Floridan aquifer in central and northern Florida; the Biscayne
aquifer in southeastern Florida; and, the sand-and-gravel aquifer
in the extreme northwestern part of Florida. The generalized areal
extent of the aquifers supplying most of the ground-water is shown
in figure 1.

The Floridan aquifer, which underlies all of the State, is the
principal source of water in central, northern, and most of north-
western Florida, as shown in figure 3. Highly mineralized water
precludes the usefulness of the Floridan aquifer as a source of
potable water in some coastal areas and in most of southern
Florida. In those areas, shallow artesian and nonartesian aquifers
are the source of supply.

The Biscayne aquifer in southeastern Florida is the chief
source of water supply for industries, municipalities, and irriga-
tion. This aquifer, one of the most highly productive of the shallow
nonartesian aquifers in the world, underlies about 3,500 square
miles of Brevard, Dade, and Palm Beach counties. The useful-
ness of the Biscayne aquifer is sharply restricted in areas adja-
cent to the coast because of the presence of saline waters.

The sand-and-gravel aquifer in extreme northwestern Florida
is the principal source of water supply, yielding large supplies of
ground water for industries and municipalities. The aquifer ex-
tends beneath all of Escambia and Santa Rosa counties and part
of western Okaloosa County.

This report of ground-water conditions has been divided into
four parts as follows: (1) Northwestern Florida, (2) northern,

FLORIDA GEOLOGICAL SURVEY

LL .I

835 105

LT--i

,(

Figure 2. Diagram of explanation of well-numbering system.
northeastern, and north-central Florida; (3) central Florida; and,
(4) southern and southeastern coastal Florida.

INFORMATION CIRCULAR NO. 48

7

EXPLANATION
-?-
Contour represents the Ieight, in feet referred to ma sea
level, to which warer would have risen in tightly cased
wells that penetrate the maor watr-baring faomatins
in the Florida aquifer. July 6-17. 1961.
Contour interval 10 and 20 feet, changing at mea sea level.

Area of arteslm flow
Extent and distribution of flow areas vary with fluctuations
of the plezinetric surface, particularly in are of heavy
pumping. Relatively small areas of artesia flow are oat
included immediately idjacear to and paralleling the
coast and mamy of the major rivers and springs.

0 0 20 30 40 50 miles

Token from Map Series Nol. by H.G. Holy, 196).

Figure 3. Map showing piezometric surface and areas of flow of the
Floridan aquifer, in Florida, July 6-17, 1961.

S FLORIDA GEOLOGICAL SURVEY

NORTHWESTERN FLORIDA

Northwestern Florida as used here includes the Panhandle
area extending from the Apalachicola River westward to the
Florida-Alabama line, as shown in figure 4.

Figure 4. Map showing locations of observation wells in
Florida for which hydrographs are given.

northwestern

The principal sources of ground water supply in the section
are the sand-and-gravel aquifer in Escambia and Santa Rosa coun-
ties and the Floridan aquifer in the rest of the area. Minor supplies
of ground water are obtained from shallow nonartesian aquifers.

The Florida Panhandle includes three rapidly growing areas
of industry and population: the Pensacola area, the Ft. Walton
Beach area, and the Panama City area.

Pensacola Area

The Pensacola area includes Escambia and Santa Rosa coun-
ties. This area, like many others in the State, is undergoing rapid
economic development. Industrial and municipal water use are
increasing. Pumpage in the Pensacola area in 1962 was about
five times that in 1940. Figure 5 shows pumpage for the City of
Pensacola 1933-62.

L A B A1 M A

i HOLMES ACKSON
H 0 L M E S --_J A C K S 0 N

I ,4I
I -- r I r--F --

SICALHOUN
SYr

INFORMATION CIRCULAR NO. 48 9

o00.
oo. -- -

3 ,00___ Q__
,1)
2,oo

1,40 0 0 /)

Figure 5. Graph showing total yearly pumpage, City of Pensacola,
Florida.

The observation-well program in the Pensacola area began
in 1939. As part of the investigation to determine the adequacy
and permanency of ground-water supply in Escambia County, the
present program includes wells in the artesian and nonartesian
parts of the sand-and-gravel aquifer. Figure 4 shows locations of
the observation wells selected from the hydrologic data network
for which hydrographs are given in this report, and table 1 pre-
sents data on 13 wells in Escambia County. Figure 6 shows fluc-
tuations and long-term trends of water levels at Pensacola from
1940 through 1962.

Comparison of the hydrographs of the three wells reveals
that while water levels at the end of 1962 declined inland in the
Pensacola area, the water level near the coast was above the
1940 level. Declines of artesian water levels in the sand-and-
gravel aquifer ranged from a maximum of 32 feet in well Escambia
45 to a minimum of 15 feet in well Escambia 46 in the period 1940-
62.

In the coastal area, at Pensacola, the artesian water level
in well Escambia 62, at the end of 1962, was about 3 feet above
the 1940 level. The trends and fluctuations of artesian ground-

FLORIDA GEOLOGICAL SURVEY

ESCAMIBA 45 DEPTH 152 FT. CASED 152 FT.

SAND-AND-GRAVEL AQUIFER

(ARTESIAN)

u

or
M

Ul
a

_z

--i

.
ii

32

5
>-

.J

U-

w

cr
-I

tU
ltu
.1

a

(3
ZO

9
U4
o

ca
1-
U.9
UJ

_1

LUl

z
_t
at
IU
&

1940

1945

1950 1955 1960 !965 1970 197,

Figure 6. Hydrographs showing trends and fluctuations of water levels in

wells Escambia 45, 46, and 62, Pensacola area.

068

72
12 ---------------------------------------

74
76

80
82-----------------------
75--------------------------------------

Ba------------------ -------- --------------- -

86---- --------------------------
88---- -------------------------

92
82------- ---- ---------------------

94
104--_------ -------------------_- -- ___-- -__ -

9e6
100

06---------------------------
10 -------------------

104
------------------------------------
102-------------^------------------------

114 -- er I eel is affected by p -_g of nearby wels

ESCAMBIA 46 DEPTH 239 FT. CASED 239 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN)
56------------ -----------------------------------------------------
58----------------- ----------------------
60-

78
66----/--^------------------------------------------- -

7so-------------
72------------ ---------
74----
75----------------------'--------------------
73-------------------\------- ---- ---_

82-------------------------------------------
84-------------------------------------------
86 --
as
88 --- -1------ -----------------------------------

ESCAMBIA 62 DEPTH 142 FT. CASED 142 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN)
6

1o
S-- I I----- ---------- ----

2-0--------------------- ----------------------
14-- -1 -----1_1-1L

22

26
28

32

INFORMATION CIRCULAR NO. 48 11

water levels in well Escambia 62 and departures from monthly
average rainfall at Pensacola, 1960-62 are shown in figure 7.

18 ..... ,

JFMAMJJASON DJMAMJ ASONDJFMMAMJJASJJASO J ND JFUAMJ J JASO N
1960 1961 1962 1963 1964

42 -

JF MAMJ J ASO N DJ F MAM J S ONDJF J a S N ODIJ F M A Mi J ASO J a ND JFM J jAsOND
1960 1961 1962 1963 1964

Figure 7. Graphs showing trends and fluctuations of ground-water levels
in well Esoambia 62 and departures from monthly normal precipitation
at Pensacola, 1960-62.

Ft. Walton Area

The Ft. Walton area includes the Ft. Walton Beach area and
Eglin Air Force Base at Niceville. The rate of growth of industry
and population is accelerating. Pumpage from the Floridan aquifer
for all uses is about 100 million gallons per day. As a result of
continuing heavy pumping, water levels have declined in about a
640 square-mile area.

The hydrograph of well Okaloosa 3 at Ft. Walton Beach, as
shown in figure 8, shows a maximum decline from highest water
level in 1947 to the lowest level in 1962 of about 58 feet from
1947-62. In August 1936, the artesian water level was 46 feet
above land-surface datum. During the period from August 1936 to
July 1962, the water level in well Okaloosa 3 declined 124 feet,
from 46 feet above land surface to 78 feet below land surface. The
areal extent of the decline in artesian levels in the vicinity of
Ft. Walton Beach is shown by the net change of water levels map,
figures 9 and 10. The hydrograph of well Walton 13 at Point Wash-
ington, about 30 miles east of Ft. Walton Beach, shows the trend
of decline in water levels during 1947-62 (p. 19).

FLORIDA GEOLOGICAL SURVEY

OKALOOSA 3 DEPTH 900 FT.

D ESAC 500 FT

OLF RIDAN AQUlF R

U1

03
l-

==
o

a

z
10
a

4

_t

UJ

03
Zt

W
UJ

IJ
3-

1945

1950 1955 1960

91 65 1970 1975

1980

Figure 8. Hydrographs showing trends and fluctuations of water levels in
wells Okaloosa 3, 25, and 31, Ft. Walton Beach area.

+24

.16--_- ---- --- -
-12--- -- _- -
*8 --- "- _

-.4-----4 -- ---------------
0*-----H------------ -----
S- 12- --- --

-16" I
-20

-24 -----
-48

-40---------- ----
.4--------- --- -- -

-48--- - ---- ---- --------- -
-52 --
-56

64 lWater leel on Aug. 19, 1936 was
46hee above land surfoce
-68

-80
-84

-92 Water levels affected by regional pumping

,24 -, - -
116
120 ------I
1i 24
128
132
> 136 - - - - -
i Water level isaffected by regional pumping
144
148

OKALOOSA 31 DEPTH 690 FT. CASED 527 FLORIDAN AQUIFER

44---------------S> -_------ -------- -
48 ------ ---- - - -

S68--- -------- ----- --------
56
60

68
72
76 -

72 - --- -------- -- --- -- -- -
84 Water leel is affected by regional pumping

92

-1o

-I,
crc
i :L

uj

I- u

_U.=

UL

cc C
us

A B A M A
o -' D
1I

SANTA ROSA

OKALOOSA

I
23

WALTON 's-
Net change of ground-water
levels in the Floridan aquifer
.---124
Net change of ground-water
levels in the sand-and- -
gravel aquifer r
g02
Observation well
number 23

Figure 9. Map showing net change of ground-water levels, Pensaoola and Ft. Walton area, May 1951 to May 1960.

BIA

0

00
FI
rt

A B A M A

0 R I D A
ROSA OKALOOSA WALTON

rm

0 5 10 20

O3 40

MILES

Map showing net change of ground-water levels, Pensacola
and Ft. Walton areas, May 1960 to May 1962.

MBIA

L
SANTA

SCALE

Figure 10.

-" 5 10 20

INFORMATION CIRCULAR NO. 48

Panama City Area

The Panama City area includes 250 square miles in Bay
County, including Tyndall Air Force Base.

The Floridan aquifer supplies most of the water for municipal
industrial, and military needs in the area. Figure 11 shows total
pumpage from the Panama City well fields at St. Andrews and
Millville for the period 1944-62. Additional industrial supplies
for the pulp industry are obtained from the nonartesian aquifer;
however, the amount is minor compared to that obtained from the
Floridan aquifer.

Ground-water supplies for municipal, industrial, and military
use have increased considerably since the end of World War II.
Panama City municipal supply increased from about 870 mgy
(million gallons per year) in 1944 to about 1,200 mgy in 1962.

The long-term trends and fluctuations of ground-water levels
at Panama City are shown by the hydrograph of well Bay 7, shown
in figure 12. The decline of water level in well Bay 7 represents
the maximum known decline in the area and is caused by pumping
in near-by wells. In August 1936, the water level in well Bay 7
was about 36 feet below land surface, while in June 1962, it was
about 76 feet below land surface or a decline of 41 feet for the
period 1936-62.

NORTHERN AND NORTH-CENTRAL FLORIDA

Northern and north-central Florida as used in this report
extends from the Apalachicola River eastward to the Atlantic
Ocean, as shown in figure 13, and includes 24 counties and parts
of Levy, Marion, and Volusia counties. The Floridan aquifer is
the principal source of ground-water supply except in areas along
the coast in central and eastern St. Johns, Flagler, and Volusia
counties where the principal source of water is a shallow, non-
artesian, sand-and-shell aquifer.

Tallahassee Area

Pumpage in the Tallahassee area in 1962 was three times
that of 1945, increasing at an average rate of 108 mgy. Figure 14
shows pumpage for the City of Tallahassee during 1933-62.

z 1,20
-J

1,100

o I, OQ I

i0

Figure 11. Graph showing total yearly pumpage, Panama City, Florida.

INFORMATION CIRCULAR NO. 48

WALTON 13 DEPTH 450 FT.

FLORIDAN AQUIFER

uj u

U>
I

1945 1950

1960 1965

Figure 12. Hydrographs showing trends and fluctuations of water levels

in wells Walton 13 at Point Washington, Bay 7 at Panama City, and

Washington 4 at Caryville.

22
20

14
12
10 -
142 - - ---- - --- -

10 -- -- - ---------- --- ---
,8--X-- ---------------------

48 ------------------ S-------- - -- --

54-----------------i--I-----------~-------------
Water level is affected by regional pumping

58 6-------------- -----

58----------------------------------------- -------------------

62- -------------------------
48 -
46

54 ~ ~ ~ -------- ------- -------
82--_-L --------- ---------
48---
50

52
54
56

58 ----

4 ----------- ^------------------

76----------------^--------------------------------------------
78 __--------- |.------------------
60 -

842------------------------ -- ------------
62

16 -------- ----1-------------------
18-----------------------------------------1---------------------
66
68

70 -I-
72

22 - - - -- - -
74

76 -

78 - - - I 1 1
80

82
84
88 Water level is affected by pumping of nearby wells

WASHINGTON 4 DEPTH 785 FT. FLORIDAN AQUIFER
0
2

14
16
18

20
22
24
26
28
30 1

0

rz

--
LU
0

I1
UJ
I-

rn
UJ

cc

3-
LU
UJ
u.

UJ
_1
(E
UJ

D E N -// -V .,,. ,
SL N M A D ON H AMI LTO N

A U L )ER S SUWA

WA KU L L A

GULF OF MEXICO

196 I'.11

Figure 18. Map showing lboations of observation wells in northern and
north-central Florida for which hydrographs are given.

3,000.--____________
w, o ,

S"2006 --_____
Z20

00

_ _i,00_____________ ___

to

Figure 14. Graph showing total yearly pumpage, City of Tallahassee,
Florida.

FLORIDA GEOLOGICAL SURVEY

The observation-well program in the Tallahassee area began
in 1936 and currently includes seven observation wells.

Fluctuations of water levels in the Floridan aquifer at Talla-
hassee are shown by the hydrograph, figure 15, of well Leon 7,
which shows a downward trend for 1960-62. The graph shows
characteristic seasonal trends with high levels in the spring and
low levels in the fall. Figure 16 shows water levels in well Leon
7 for the period 1946-62.

Fernandina-Jacksonville Area

The Fernandina-Jacksonville area is one of the largest indus-
trialized areas in the State, with water use increasing as a result
of the rapid economic expansion. Figure 17 shows total yearly
municipal pumpage for Jacksonville from 1921-62.

The observation-well program in the area began in 1930 and
has gradually expanded and currently includes 29 observation
wells.

Ground-water levels in the Fernandina-Jacksonville area have
been declining for a considerable period of time. Trends .and sea-
sonal fluctuations of the water levels in the Floridan aquifer
at Jacksonville are shown for well Duval 122 and for well Duval
164 near Mayport. Hydrographs of wells in the Floridan aquifer in
Nassau and Duval counties are shown in figure 16 and 18.

The maximum decline of water levels in the Fernandina area
occurred in the coastal area in well Nassau 12 (fig. 16), where
water levels declined 44 feet from 28 feet above mean sea level
to 16 feet below mean sea level during the period 1946-62. How-
ever, water levels in well Nassau 51, approximately 20 miles
inland, declined only about 14 feet during the same period.

Water levels in well Duval 122 at Jacksonville declined a-
bout 17 feet from 1930 to 1962, while along the coastal areas in
Duval County water levels generally declined about 10 feet. These
declines are part of the broad regional decline of water levels as
may be seen in figure 19, which shows the net change of ground-
water levels in several counties.

INFORMATION CIRCULAR NO. 48

154

, 158
0 LEEON?
6I 01

162 6

m 164

JFMAMJ JASONJ FMAM J J SO NOJ FMAM JASONDJ FMAM J JASONOJFMAMJ JASON
1960 1961 1962 19963 le4

1960 1961 1962 1963 1964

Figure 15. Graphs showing trends and fluctuations of ground-water
levels and departures from monthly normal precipitation at Tallahassee,
1960-62.

CENTRAL FLORIDA

Central Florida includes 17 counties and covers about 18,000
square miles. The extent of this Section and location of observa-
tion wells for which hydrographs are given are shown in figure
20.

The principal source of ground-water supply in western coas-
tal and central peninsular Florida is the Floridan aquifer, while
in the eastern coastal area the nonartesian shallow-sand aquifer
is the chief source of water supply.

FLORIDA GEOLOGICAL SURVEY

LEON 7 DEPTH 314 FT. CASED 165 FT.

FLORIDAN AQUIFER

149 I I I I I I I I I I I I i I I
15 -{ ------ 11 ----- ------ --
152- -----

161-- 1 -----

167 I I
170 -
173 Water level is affected by pumping of nearby wells

MADISON 18 DEPTH 322 FT. CASED 307 FT. FLORIDAN AQUIFER

2 17 1
20
23
26
29
32 ---
35
38
41

COLUMBIA 9 DEPTH 836 FT. CASED 680 FT. FLORIDAN AQUIFER

72
75
79--------------------------------------------------------

7----------------------------------------
75

73--------------------------------------------------------------

4- -I- ----------------------1--
-8:

!02
!m5

NASSAU 12 DEPTH 640 FT. FLORIDAN AQUIFER

-24

15-- -

-30

2-- -----------------------------------
24 ---- --

-9
-6

Water level is affected by regional pumping- -----------
-- \---------- -

-2'
-30
*6 -27 ...
_=ae ee safce b ein lp m ig _ _

1945

1950 1955 1960 1965

Figure 16. Hydrographs showing trends and fluctuations of water levels
in wells Leon 7 at Tallahassee, Madison 18 near Madison,
Columbia 9 at Lake City, and Nassau 12 near Fernandina, Florida.

~Lz
uJ

t.J
_:

2
<3

3
c
LL
2
<

C:
<

LI

LI
C

16,0 0,
I! I I I l i I I I I I I I I I l i I I I l I I I I 1 1 1 I i i i i

14,00

12,000

600Q

,o.61,000,, ////.///,

4,000

o nnn

. _-1 "

0
a

U)
_=

N

~~iV' AX~AX 7K

0
0)

I I I I

a,

0

Figure 17. Graph showing total yearly pumpage, City of Jacksonville,
Florida.

U,
-J

0

I
.I
0

z
0

0)

In

~----~~--~~~-~~~-~~ ~ ~ ~

--

I~ . I- I~ [ r~ -- t tn t t . .

~~ - A

1W %"

Jr

L

V '///.^/ /T? //////^

FLORIDA GEOLOGICAL SURVEY

SNASSAU 51 DEPTH 580 FT.

LF ORIDAN AQUIFER

CU

Ca

U4
tJ

CL"
,-r
cr

u

ul
ul

U.,
-L

4 Ca
54

I- CU

0
Ir Cr

LU.1
Lj -

LL- U

to
Uj

C a
dO

U>-
tI-

C-
,S

LUJ

CU
LU>.
I- 0

4 CO
54

1930

1935 1940 1945 1950 1955 1960 1965

42 I
40 ------------ --- --

328----- -
36
34
32

28
26
24
22---------- ------------

47UVAL 122 DEPTH 905 FT. CASED 571 FT. FLORIDAN AQUIFER
I |----------------------------
45
43
41 -----------------------

25 -----------------
39

DUV.AL 164 DEPTH 840 FT. CASED 450 FT. FLORIDAN AQUIFER
43

43- -^ ^^ _ - - -
35-
33-----

33 -- -- ___
31

29

S Water level is affected by tides
25

23 -

MARIOL 4 5 DEPTH 135 FT. CASED 135 FT. FLORIDAN AQUIFER

PUTNAM 29 DEPTH 300 FT. FLORIDAN AQUIFER
4 -

41
25 level is affected f ides

23 -- I I I I
21

PUTNAM 5 DEPTH 135 FT. CASED 135 FT. FLORIDAN AQUIFER
14

10

2

4 I
71O t
FLOIDA AQIFE

Figure 18. Hydrographs showing trends and fluctuations of water levels
in wells Nassau 51 at Callahan, Duval 122 at Jacksonville, Duval 164
near Mayport, Marion 5 near Ocala, and Putnam 29 at Palatka, Florida.

INFORMATION CIRCULAR NO. 48

Panama City Area

The Panama City area includes 250 square miles in Bay
County, including Tyndall Air Force Base.

The Floridan aquifer supplies most of the water for municipal
industrial, and military needs in the area. Figure 11 shows total
pumpage from the Panama City well fields at St. Andrews and
Millville for the period 1944-62. Additional industrial supplies
for the pulp industry are obtained from the nonartesian aquifer;
however, the amount is minor compared to that obtained from the
Floridan aquifer.

Ground-water supplies for municipal, industrial, and military
use have increased considerably since the end of World War II.
Panama City municipal supply increased from about 870 mgy
(million gallons per year) in 1944 to about 1,200 mgy in 1962.

The long-term trends and fluctuations of ground-water levels
at Panama City are shown by the hydrograph of well Bay 7, shown
in figure 12. The decline of water level in well Bay 7 represents
the maximum known decline in the area and is caused by pumping
in near-by wells. In August 1936, the water level in well Bay 7
was about 36 feet below land surface, while in June 1962, it was
about 76 feet below land surface or a decline of 41 feet for the
period 1936-62.

NORTHERN AND NORTH-CENTRAL FLORIDA

Northern and north-central Florida as used in this report
extends from the Apalachicola River eastward to the Atlantic
Ocean, as shown in figure 13, and includes 24 counties and parts
of Levy, Marion, and Volusia counties. The Floridan aquifer is
the principal source of ground-water supply except in areas along
the coast in central and eastern St. Johns, Flagler, and Volusia
counties where the principal source of water is a shallow, non-
artesian, sand-and-shell aquifer.

Tallahassee Area

Pumpage in the Tallahassee area in 1962 was three times
that of 1945, increasing at an average rate of 108 mgy. Figure 14
shows pumpage for the City of Tallahassee during 1933-62.

EXPLANATION
Net change of ground-water
Levels In the Floridan aquifer. .
Contour Interval 2 feel
69 13 CLAY/
Observaifon well number CLAY
-.. /123
ST JOHNS C- /

\ ALE "./ I
"g io"_ PUTNAM se"
. MILES

S FLAGLER --
-"' "I ,,, \

Figure 19. Maps showing net change of ground-water levels in the
Jacksonville and Fernandina areas, May 1951 to May 1960 to May 1962.

2 FLORIDA GEOLOGICAL SURVEY

rS EiM 1 0 L E

S-- -----

p3 M O V A ,S A 0. -
I__ I i
392 SE83 LE

SINDI AN RIVER

S, ...... . I ._ __ .. 0 -25
N E

S S I i -

". I i / oitt ----- -
MtJ A TEE
S10 OKEECHOBEE S LUCIE

\ sAN TE7J RD0 E S T o L
SARAS 0 TA I

Figure 20. Map showing locations of observation wells in central Florida
for which hydrographs are given.

Central Florida includes four rapidly growing centers of pop-
ulation and industry: the Tampa-St. Petersburg area, the Lakeland
area, the Orlando-Cape Kennedy area, and the Sarasota-Bradenton
-area.

Tampa-St. Petersburg Area

This area, particularly in the vicinity of Tampa and'St. Pe-
tersburg, is undergoing a rapid expansion in both industry and
population.

The observation-well program in this area began in 1930 with
one well in Hillsborough County, and currently includes 30 obser-
vation wells in the Floridan aquifer.

INFORMATION CIRCULAR NO. 48

The long-term trends and fluctuations of ground-water levels

in the Floridan aquifer in the Tampa-St. Petersburg area are shown
in figure 21. The hydrographs show a similarity of water-level

fluctuations in well Pasco 13 near Ehrin and well Hillsborough

13 near Citrus Park, during the period 1945 through 1962. Drought

conditions and increased pumping during 1961-62 caused water

levels to decline in well Hillsborough 13 to the lowest levels of
record. Rainfall recorded at Tampa and the decline of water level

in well Hillsborough 13 for the period 1960-62 is shown in figure
22.

Water levels in two Pinellas County wells are shown in figure

23 and a slight downward trend from 1946 through 1956 can be

noted for Pinellas 246. This downward trend was reversed during
the latter part of 1956.

H TPED 49 FT CASE T

OLF RIDAN AQUIF R

--------

5 ------------ ---r---- -

80 -- --- _L------_ - -

H1LLSBOROUGH 13 DEPTH 347 FT. CASED 46 FT. FLORIDAN AQUIFER
0

2

0-- ------------------------------.----- --- ------ -
3I
4
5
6
7

5------------------------------------
7 ___ ____---------------------
9----------- V_---,
12

12
HILLSBOROUGH 13 DEPTH 47 FT. CASED 46 FT. FLORIDAN AQUIFER

50------------------------------------- ------

II--------------------------------------- -- -
12------------------------------------------------------------
3
4
5
6

14------------------------------------------
15--------------------------------------
16------------------------------ --

19-------'-----------------------------
8 -- I

-12 -
13
14
15 -
16
17
18
DAzni ET 9 T AE 3F FOIA QIE

1935 1940 1945 1950 1955 1960 1965

DACrn 1

I- W

S-J

cr

i,
U0

-I

z
.J
_1

tL

z
_j

-I

1930
1950

Figure 21. Hydrographs showing trends and fluctuations of water levels
in wells Pasco 13 near Ehrin and Hillsborough 13 near Citrus Park,
Tampa area.

FLORIDA GEOLOGICAL SURVEY

HILLSBOROUGH 13

14

JF FAM' D J JA S O NIJ FMA M J F J J ASO N DJ F MAMJ JA DJF A M JJIA SO ND

1960

1962

1964

Figure 22- Graphs showing trends and fluctuations of water levels in
well Hillsborough 13 and departures from normal monthly precipitation
at Tampa, 1960-62.

The chloride contents of water from two wells in the Floridan
aquifer in Pinellas County are shown in figure 24. The chloride
of well Pinellas 592 at Bay Pines ranged from 1,000 ppm (parts
per million) to 2,200 ppm from 1957-62. The chloride content of

INFORMATION CIRCULAR NO. 48

HILLSBOROUGH 30

DEPTH 500 FT. CASED 97 FT.

I- UJ

JCn
wo
,tu
_- -J

r3
(C

-0

W
-JM

C=m:

1

45

tSWater level i affected by tides
III ili; I

1950 1955 1960 1965 1970 1975 1980

Figure 23. Hydrographs showing trends and fluctuations of water levels
in wells Hillsborough 30 near Ruskin, Pinellas 13 at Tarpon Springs,
and Pinellas 246 at Clearwater.

well Pinellas 166 at Dunedin ranged from about 20 ppm to 1,000
ppm during the same period. The chloride content in both wells
decreased during 1957-61. During 1962 the chloride in well 592
increased nearly to the 1959 concentration. In contrast, the chlo-
ride in well 166 remained low during 1962 and at the end of the
year was well below the 1959 concentration.

Lakeland Area

In the Lakeland area, like owners in Florida, ground water
is being pumped at an increasing rate, commensurate with the

FLORIDAN AQUIFER

3
2
2- --------------------- --- -- -----

9
2I ------------ -- - - -

SPINELLAS 13 ,DEPTH 141FT CASED FT. FLORDAN AQUIFER
6
0------------------------- ------- ------- -- -

8 -- OM------------
6 -------
5,- S -- - --_ - _- -

2- ---------------------- -- - -
I --------------------_---------

3 Water level is affected by tides _

PINELLAS 246 DEPTH 208 FT. FLORIDAN AQUIFER
21
20 -- -- --- --- -----*-- ----.-.---- -- -
22-6L 1 1-kf4
23
5
6
7
PINELLAS --46 DEPTH -08 Fl-. FLORIDAN AQUIFER

29
30
91

1 r~ 1 111 11 N-M-t-rtrl I I!!!

4 "te evlisafetd ytie

FLORIDA GEOLOGICAL SURVEY

4200

00 I _m
197I15 5 16 9 1I16 JG '16 116

1000

400

00 ______________

P1NELLAS 166
57 1958 I 59 1960 61 11962 1963 1964 165

Figure 24. Graphs showing changes in chloride content in wells Pinellas
592 at Bay Pines and 166 at Dunedin, St. Petersburg area.

growth of the area. Municipal pumpage at Lakeland' increased
about 55 percent during the 10-year period 1953-62, and annual
industrial pumpage in Polk County is presently (1962) about 45,000
million gallons. Figure 25 shows the total yearly pumpage at
Lakeland for 1928-62.

The observation-well program began in 1945 in the eastern
part of Polk County and the network as of 1962 contains 34 wells
in the artesian and nonartesian aquifers in the county.

The marked decline of water levels in the Floridan aquifer
during 1960-62, in the vicinity of Lakeland, is shown in figure
26 with a maximum decline about 20 feet in well Polk 45.

The precipitation record at Lakeland shows rainfall deficien-
cies in the Lakeland area during years 1961 and 1962.

INFORMATION CIRCULAR NO. 48

4,000

3,600.

2j400

40. 2

Figure 25. Graph showing total yearly pumpage,
City of Lakeland, Florida.

Water levels declined to record lows in both artesian and
nonartesian aquifers in the Lakeland area during 1960-62. Declines
in artesian levels ranged from 6 feet in well Polk 44, near Daven-
port, to 20 feet in well Polk 45, south of Lakeland. Declines in
the nonartesian, shallow-sand aquifer ranged from 6 feet in well
Polk 49 to 9 feet in well Polk 47, near Davenport. Long-term
trends and fluctuations of ground-water levels in the Lakeland
area are shown in figure 27.

Water levels in the artesian aquifer, in southern Polk County,
and in the shallow-sand aquifer, in southeastern Polk County, and
in central Highlands County, are shown in figure 28.

The most prominent features in the hydrographs in figure
28 are the declines of water levels in the artesian aquifer and
in the shallow-sand aquifer caused by the droughts of 1950-51,
1955-56, and 1961-62. Comparison of the effects of the drought
on water levels during the latter part of 1960 through 1962 shows
that maximum declines occurred during the 1961-62 drought in
southern Polk County, in well Polk 51, and in central and in south-
eastern Highlands County in wells Highlands 10 and Highlands
13, respectively.

v

at oC

~

FLORIDA GEOLOGICAL SURVEY

POLK 45

Sc

aa-

F-MAMsM SA J J A S 0 N D J M AS AJ JM N J JAs o N'DJFMA M J J A S o N

Figure 26. Graphs showing trends and fluctuations of water levels in
well Polk 45 near Lakeland and departures from monthly normal pre-
cipitation at Lakeland, 1960-62.

During the 1961-62 drought, water levels declined 10 feet in
central Highlands County and 9 feet in the southeastern part of
the county. In central Highlands County the decline of water levels
in the shallow-sand aquifer was about 10 feet during the 1955-56
and the 1961-62 droughts. In the southeastern part of the county,
in lower Kissimmee Valley, nonartesian water levels declined 3
feet lower than the lowest water level of the 1956 drought. In
contrast, decline of water levels in the nonartesian aquifer in

INFORMATION CIRCULAR NO. 48

POLK 44 DEPTH 195 FT. CASED 81 FT.

FLORIDAN AQUIFER

LL

-J

U-z

C,

0

-j
0
_j

w

_J
0:
I
Sn

1945

1950 1955 1960

1965

1970

1975

1980

of water levels
near Lakeland,

+1
o
-I - - -

-2
-3
-4
-5 ------
-6 -
-7 -
-8- I----

POLK 45 DEPTH 643 FT. CASED 325 FT. FLORIDAN AQUIFER

59 -
60
61 ----
62

64
65
66
67 -
68
69
70
71 -

72 i
71-----H----------*----------------------

73 ------------------
74
75
76
78
79---
80
81
80------------------------------------------- -- -
82------------------------------- -----. ---------
82----
83
83--------------------------- -.------ ------
84 --
85 ----
86-----
87----
88
89 ---

POLK 47 DEPTH 67 FT. CASED 60 FT. SHALLOW SAND AQUIFER (NONARTESIAN)
38------------------------------------------------------ -* ----~ -- ------ ~~-----' ~""-------
38
39 -
40
41
42
43
44
43----------------------------------------
442---- -------------------------------

463-- -- -- ------------------------

47--------------
485
49
50
51
52------
52------------------ -L - -

Figure 27. Hydrographs showing trends and fluctuations
in wells Polk 44 and 47 near Davenport and Polk 45

Lakeland area.

POLK 49

FLORIDA GEOLOGICAL SURVEY

DEPTH 17 FT. CASED 14 FT. SHALLOW SAND AQUIFER (NONARTESIAN)

Z>
-Q
2-1
LU

Ei

L'i
3m

U-
Z

d

u

Ut
3:

I-I

J-
4-

0I- -

-2-
-3
-4
-5

-7----
-8 ------------------
-6
-9-9-------------- ----

POLK 51 DEPTH 319 FT. CASED 208 FT. HAWTHORN FORMATION (ARTESIAN)

4c------- ]---- --------------------

,5--------------------------------_--- __
,6-----------------------------------------1-------------------

,3- ----------------------------------------l-------------------

_- -- _-- --- - -
20-------- -----d-4-------------------
3 -
4
5

7
| I

6.----------- ---------- --
I?

13--
14

20
21

24' I I I I I I I

HIGHLANDS 10 DEPTH 45 FT. CASED 41 FT. SHALLOW SAND AQUIFER (NONARTESIAN)

--------------------------EU-------------
24 ---------
25

27
28
28------------------------------------------------------------- -

29---
32-------------L---------------- ----------

32
23-------------------------t---->r----------------------

34 -----------------
35
33----------------------------------------J--------------------------

36-----------------------------------
37------------------------------------
38------------------------------------
39 :----
4n - .L L - -

1945 1950 1955 1960 1965 1970 1975 1980

Figure 28. Hydrographs showing trends and fluctuations of water levels
in wells Polk 49 near Frostproof, Polk 51 at Frostproof and
Highlands 10 near Sebring.

INFORMATION CIRCULAR NO. 48

wells Osceola 183 and Okeechobee 3 did not exceed declines in

these wells caused by the drought in 1955-56. Figure 29 shows

fluctuations of water levels in the shallow nonartesian aquifer in

Highlands, Okeechobee, and Osceola counties.

DEPTH 20 FT. CASED 16 FT.

SHALLOW SAND AQUIFER (NONARTESIAN)

32
31 1 1 1 1
30
29
28
27
26 -
25 I I
24
23
22
21
20
19
18

OSCEOLA 183 DEPTH 27 FT. CASED 22 FT. SHALLOW SAND AQUIFER (NONARTESIAN)
76

74 I II
73 1 I. II I I
72
710 -
70 r
69
68
67
66
OKEECHOBEE 3 DEPTH 22 FT. CASED 19 FT. SHALLOW SAND AQUIFER (NONARTESIAN)
64
63
62
61
60 A
59
58

56
55-
54
53
52

1945 1950 1955 1960 1965 1970 1975 1980

Figure 29. Hydrographs showing trends and fluctuations of water levels
in wells Highlands 13, Osceola 183, and Okeechobee 3 in the Kissimmee

Valley.

GIH HANDS IS

I-
WU i

rr
U.L LLI
U. j

> >
U<0

.-J
_LU

UJ
b>Z

U,

~J~

.j l
l lZ.
I->

W 0
g 8
-:

v-

FLORIDA GEOLOGICAL SURVEY

Orlando Area

The Orlando area includes Brevard and Orange counties.

The Floridan aquifer supplies most of the ground water for
municipal and industrial needs in the area. The trends and fluc-
tuations of ground-water levels in the Floridan aquifer near Orlan-
do are shown in figure 30.

e1 62 1963 1964

Figure 30. Graphs showing trends and fluctuations of water levels in
wells Orange 47 and 47B near Orlando and departures from monthly
normal precipitation at Orlando, 1960-62.

INFORMATION CIRCULAR NO. 48

The long-term trend of artesian water
area is shown in figure 31.

levels in the Orlando

+ ORANGE 47 DEPTH 350 FT. CASED 328 FT. FLORIDAN AQUIFER
+9
+8
+7
+90------ .--------.-----_-----__-- -- --- __ __

6- --------------------'^ --------
+6
+5
+4
+3
+2
+- iI - --
+1I
2-------------
-1 A

-3-- -------------
-4
-5--
-6
-7 Nob reco-d--va-ab-
-8 i
-9

-II
-12
-13 --
-14
-15 -----------------
-16----
-17-::
-18 -
-19---
-2

930
1930

1935 1940

1945 1950 1955

Figure 31. Hydrographs showing trends and fluctuations of water levels
in well Orange 47, near Orlando.

The hydrograph of well Orange 47 shows ground-water levels
declined from the highest level of record in the spring of 1960
to the lowest level of record in 1962, for a maximum fluctuation
of 22.96 feet.

Cape Kennedy Area

One of the most rapidly growing areas in the State is the
Cape Kennedy area. Water in the Floridan aquifer in the area is
generally brackish and is used primarily for crop irrigation. Figure
32 shows water-level fluctuations in eastern coastal Florida in
Brevard, Indian River, and St. Lucie counties.

1960

FLORIDA GEOLOGICAL SURVEY

BREVARD 19

DEPTH 413 FT.

CASED 80 FT

FLORIDAN AQUtF R

liR

-
LU

m_
-a

UJ
LU

--
L1

LUc U

UJ
LI'

La4

LU

LU
>U
I-

6.j
S-I
ca

crw

1945

Figure 32. Hydrographs showing trends and fluctuations of water levels
near Cape Kennedy and eastern-central coastal Florida.

30 1 1
29 --- --- --
28--- --- --
27
26----- -
25
24---
23
zz22
21
20 -
19
18
17
16
15
1a - _- -- -- --

67 -- - ----------------- -

15 --------------- -- -- --- -- --
14 --

BREVARD 79 DEPTH 160 FT. CASED 85 FT. FLORIDAN AQUIFER

+7 I- I I-I I- I- -I I I I- 1
"-'t f- IIII -r r- - ---1-1- -- -- -

S-_- L lu' -- -_---__----_-- -

BREVARO 148 DEPTH 206 FT. CASED 105 FT. FLORIDAN AQUIFER

13

INDIAN RIVER 5 DEPTH 19 FT CASED 13 FT. SHALLOW SAND AQUIFER (NNARTESAN)

9
8 - - I-- - -
7 -- - - --- -- - -
6 --- -
8
7
6
5 ---------------------
4
3

30 ---- L Tr- ---I--------------------
3 i i i i i .

INDIAN RIVER 25 DEPTH 19 FT. CASED 13 FT. SHALLOW SAND AQUIFER (NONARTESIAN)
32
31
30

28
27 '
26
25

ST. LUCIE 42 DEPTH 18 FT. CASED 13 FT. SHALLOW SAND AQUIFER (NONARTESIAN)

28
31 1 I ----- -

26 F
25
24-

1950 1955 1960 1965 1970 1975

INFORMATION CIRCULAR NO. 48

Hydrographs of four wells in Brevard County show a long-
term downward trend of artesian levels in the Floridan aquifer.
Since 1946, artesian water levels have declined about 7 to 10
feet near Melbourne and Eau Gallie and a minimum of 7 feet at
Cocoa. Levels have declined about 8 feet on Merritt Island about
10 miles northwest of Cape Kennedy.

Hydrographs of wells in the shallow-sand aquifer in Indian
River and St. Lucie counties indicate only a slight downward
trend of ground-water levels has occurred during the period of
record.

Sarasota-Bradenton Area

The Sarasota-Bradenton area includes Manatee and Sarasota
counties in southwestern coastal Florida, and the principal eco-
nomic activities in the area are agriculture and stock raising.
The coastal section is rapidly developing as a retirement and
year-round tourist center.

Figure 33 shows the water-level fluctuations in observation
well Sarasota 9, in the Floridan aquifer, have been declining at
an average rate of about 0.5 foot per year since 1930. Water level
records for several wells in southwestern Florida indicate that
the decline is regional and that the rate of decline is accelerating.

SOUTHERN FLORIDA

The southern Florida area includes all counties south of
Lake Okeechobee and covers an area of about 17,500 square miles
as shown on page 45. The locations of selected observation wells
in southern Florida are shown on figure 34.

In southern Florida, nonartesian aquifers are the principal
source of water supply. In the coastal areas of Martin and Palm
Beach counties, a nonartesian shallow-sand aquifer is the chief
source of supply; in Broward and Dade counties, the Biscayne
aquifer is the principal source; and in southwestern coastal Florida
and inland areas, nonartesian shallow-sand and shell aquifers
are the main sources.

FLORIDA GEOLOGICAL SURVEY

DEPTH 600 FT. CASED 154 FT.

FLORIDAN AQUIFER

34 1 1 1 1
35
36 ---
37
38 - -
39
40
41-
42
43
44
45
46 I I
47
48

50 V
51
52
53
54
55
56
SARASOTA 9 DEPTH 730 FT. CASED 101 FT. FLORIDAN AQUIFER

+2

-I--.- -
-2------------_ -_-------.------- -_- _J--_
-3----------------------------- -------

-6
-7

-14----------------------------
-12II-I- ---- -

-14 ----
II I IIIIEEE^ EEEEEEB :

1955 1960

1965

Figure 33. Hydrographs showing trends and fluctuations of water levels
in wells Manatee 92 and Sarasota 9, Sarasota-Bradenton area.

Ft. Myers Area

The Ft. Myers area includes Lee and Charlotte counties and
like adjacent counties to the north and is developing rapidly as
a winter tourist and retirement center.

MANATEE 92

LU
C-1

UA

Ul

W
-1

ul
W
ILI
U-

_t
0:
UJ1

-I

1930 1935 1940 1945 1950

INFORMATION CIRCULAR NO. 48

Figure 34. Map showing locations of wells in southern Florida for which
hydrographs are given.

The observation-well program in the Ft. Myers area began in
1943. The program was part of the investigation of the trends and
fluctuations of ground-water levels in the nonartesian and Floridan
aquifers in the area. Currently, water levels are being measured
in eight wells in Lee County. The principal source of ground water
is the nonartesian aquifers. Figure 35 shows the seasonal fluc-
tuations of ground-water levels in well Lee 246 and rainfall at
Ft. Myers for the period 1960-62. Generally, seasonal fluctuations
of water levels in nonartesian aquifers closely correspond to fluc-
tions in the amounts of rainfall. Figure 36 shows the trends and

FLORIDA GEOLOGICAL SURVEY

1960 1961 1962 963 1964

Figure 35. Graphs showing trends and fluctuations of water levels in
well Lee 246 near Ft. Myers and departures from normal monthly pre-
cipitation at Ft. Myers, 1960-62.

fluctuations of water levels in nonartesian aquifers for selected

wells in southern Florida.

Stuart-West Palm Beach Area

This area includes coastal parts of Martin and Palm Beach

counties and is a segment of the rapidly growing populous coastal

complex extending from Jacksonville southward through the Keys.

Municipal pumpage at Stuart increased about 250 percent between

1941-45 and 1955-60 as shown in figure 37.

~

P

t
~ct.
s
3
P
r

c
s
1
I O
I
z
f
B -z

c
t -*
d
f

INFORMATION CIRCULAR NO. 48

LLU

zU D
ccn

LUz

..0a
- (n
_j

5 i

-I
-_ "

L >
- w

.J Cl
12

1950 1955 1960 1965 1970 1975 1900

1945

O k A
CLS E Drn Lr r9. '. rL T.mrUMi PUIRANFIO N ONA RT SA

,04-4 -- 44 -~~~ ----------------
S- I ----------------

6

8

19

14

28COLLIEk C131 DEPTH 54 FT. CASED 22 FT. TAMIAMI FORMATION (NONARTESIAN)
27

24

22
21

17
16

COLLIER C54 DEPTH 9 FT CASED 8 FT. SAND AND SANDSTONE AQUIFER (NONARTESIAN)

12
I IA

9
27--:----jf|j | |-|--F------------------

COLLMARTIN 147 DEPTH 74 FT. CASED 73 FT. SANDSTONE AQUIFER (NONARTESIAN)

+15
+14
28 -

+13
271r-----------------L-----.----.------------------- -I---
26------------------------------------~

24------------------------- - -
23---------------------------------------
22---------------------------------------------------- -- -

21 --- I I I||| | i

+1 -

+9
+8
I- --i ---

-1
1-----------------
+12 -- ----- +N- -- 4 t - -
Io----------------- -- -------

+26 -- -- -_ _----- -B --,- _. -
'-1-----------------------------
+i2-----------------------
+11------------------------ -- li-
-IC----------- -- -

+7---------------- ----- ---- ----
+6---- --- ---- -- -

o - - - - - - ---Ii1 1 1
_I---------------------------------- -- -

Figure 36. Hydrographs showing trends and fluctuations of water levels
in wells Lee 246 near Ft. Myers, Collier C 54 and 131 Everglades, and
Martin 147 near Stuart, Florida.

rr ~re

N~ttl nT rt CLVIL CL ~-

W-----_

FLORIDA GEOLOGICAL SURVEY

9-i
T-j
4 -

Figure 37. Graph showing total yearly pumpage, City of Stuart, Florida.

The principal source of water supply in the Stuart area is
the nonartesian shallow-sand aquifer. Trends of water levels in
the nonartesian aquifer at Stuart are shown in figure 36. The hydro-
graph of well Martin 147 shows a downward trend of nonartesian
levels. Levels declined to a record low of less than 2 feet above
mean sea level in the spring of 1962. The declines are caused,
in part, by increased pumping in the Stuart well field:

The Biscayne aquifer is the chief source of water supply in
southern Palm Beach, Broward, and Dade counties. Figure 38
shows the trends and fluctuations of end-of-mohth water levels
in well Palm Beach 88 and rainfall data at West Palm Beach.
Fluctuations of water levels for several selected wells are shown
in figures 39 and 40. The hydrographs indicate that there are
downward trends of water levels in some wells for the period of
record shown by the graphs.

Ft. Lauderdale Area

The Ft. Lauderdale area includes the populous coastal part
of Broward County, extending from Deerfield-Boca Raton area in

INFORMATION CIRCULAR NO. 48

Figure 38. Graphs showing trends and fluctuations of water levels in
well Palm Beach 88 and departures from monthly normal precipitation
at West Palm Beach, 1960-62.

the northern part of Broward County, to the Hollywood area in the
southern part of the county. Water levels in this area have declined
during the past decade. Long-term downward trend of water levels
in the Biscayne aquifer in, and adjacent to, the Ft. Lauderdale
area are shown by hydrographs of wells Palm Beach 88 (fig. 39),
Broward F 329 at Ft. Lauderdale (fig. 40), and Broward G 617
about 15 miles northwest of Ft. Lauderdale (fig. 39). Water levels
in these wells declined to new record-low levels during 1950-51,
1955-56, and 1961-62.

The Biscayne aquifer contains salty water in areas adjacent
to the coast and along tidal canals. Figure 41 shows graphs of the
chloride content of water in wells Broward G 514 and S 830 in the
vicinity of the Ft. Lauderdale Dixie well field and in wells Dade
F 296 and F 64 in North Miami Beach and Miami.

12 -

10

+2 A J .. ... I ... L. 4. .....D .. J ,
SF MAM M J A S 0 N 0 F MA M J J A S ON DIJ F MA M J J AS 0 N D J F M A MJJ A S 0 N DJ F M AM J J A SO ND

FLORIDA GEOLOGICAL SURVEY

ED PTH 17 FT CASE T

CSIB AYNE AQUlF R

UA

4
Ca
I- 11U
U>
UL 11a
U- --I

tur
LLLZ
JLU
LL

z
LU z
IS

m

-W
o LL

LU
11<

LU LAI
'4

LU

M
-I

Iu
03

U)

> LUJ
LU U1
U) 4
''

4
S

S
0
U)

03
4

6m>
4 LU
cn >-

LU
L LLt
U. U)
S
-4
LU
La5

U)
!a

3C
SI

5 491 1950 1955

1960

19 1975

DAMI DACrU 0

9s 4 -- ----------------------
-i -ir-I-ii. A

2
4 I f I I II

3-- -1 I I I'- I

0-------- - r I- - -

BROWARD 6617 DEPTH 29 FT. CASED 28 FT. BISCAYNE AQUIFER

9
8

i,-------------------__---_---L -- ---------
4 ------------------

'5 A - -

O
BRO15 ARD 5561 DEPTH 91 FT. CASED 79 FT. BISCAYNE AQUIFER

14 -------- -----------

+12

+10
6

+6 Mill I

+5 1 L
+4
+12 1 1

+9 ii I "

0- 1 1 1-- -
4 -
-1 -------- - - -

*1 - --8---- -
'*9 - - -
*1 - - -
+9------' - - -

4.- -

Figure 39. Hydrographs showing trends and fluctuations of water levels

in wells Palm Beach 88 near West Palm Beach, Broward G 561 and G 617

near Ft. Lauderdale, and Dade G 553 near Miami.

1965

INFORMATION CIRCULAR NO. 48

8 WARD F291 DEPTH 107 FT. BISCAYNE AQUIFER
7
6
5
4

0

DADE SI18 DEPTH 52 FT. BISCAYNE AQUIFER

8

7
6
5
4

0

+10 DADE S196A DEPTH 20 FT. BISCAYNE AQUIFER
+9
+8-
+7 I
+6 III $ I
+5 1
+4
+3

-I-
-2

DADE FI79 DEPTH 77 FT. BISCAYNE AQUIFER

6 I I

5
4

11 BROWARD S329 DEPTH 68 FT. BISCAYNE AQUIFER
10
9
8
7
6

48- -
6---------------------------AII I

3

0- I I No recUord avoilIable I

iaou 1935 1940 1945 1950- 1955 1960 1965
Figure 40. Hydrographs showing trends and fluctuations of water levels
in wells Broward F 291 at Hollywood, Dade S 18 near Miami, Dade
S 196A near Redland, Dade F 179 at Miami, and Broward S 329
near Ft. Lauderdale.

0

w<

I.-
Cn
LLz

irm
--I
rr
UJw

48 FLORIDA GEOLOGICAL SURVEY

BROWARD
00- -BISGAYNE
DEPTH 51
4000-
3000

3500

3000 \ I
2500

2000
BROWARE
S1500 BISCAYNE
DEPTH 119
^ i00l-----~-~--- c-- ---
i00
= 500- -- .

------

1000
800
zI-- I- DADE F 29E
0 600 --- BISCAYNE A
EPTH 47 F
O400

_ Aoo A_ .

Figure 41- Graph showing changes in chloride content of water in wells
Broward G 514 and S 830 near Ft. Lauderdale, and Dade F 296
and F 64 near Miami.

INFORMATION CIRCULAR NO. 48

Miami Area

The Miami area includes Broward and Dade counties and is
the most populous area in the State. The principal source of water
supply is the Biscayne aquifer, the extent of which is shown on
figure 1.

The observation-well program began in the Miami area in
1939 and currently includes 125 wells in Broward County and
about 350 wells in Dade County. The locations of selected obser-
vation wells in the Miami area for which hydrographs are given
are shown by figure 34.

Water level observations were made as early as 1933 at Home-
stead in well Dade S 196A. Long-term record of water-level fluc-
tuations at Homestead are shown in figure 40. Figure 42 shows
trends of water levels and rainfall recorded at Homestead Experi-
mental Station 1960-62.

S+16

+12

+8

+4
z
+4
I0

a -4

X -e

1960 1961

1962

1962

1963

1964

1964

Figure 42. Graphs showing trends and fluctuations of water levels in
well Dade S 196A, and departures from monthly normal precipitation at
Homestead Experimental Station, 1960-62.

50 FLORIDA GEOLOGICAL SURVEY

Except for the relatively narrow coastal strip, most of the
Miami area is occupied by the Everglades. Fluctuations of ground-
water levels in the Everglades are shown by hydrographs of wells
Dade G 72, G 596, G 618, and G 620, figures 43 and 44.

Fluctuations of ground-water levels in the Biscayne aquifer
in the vicinity of Miami are illustrated by hydrographs of well
Dade G 10 about 5 miles west of Miami, Dade S 19 at Miami
Springs (fig. 43), and well Dade F 179 at Miami (fig. 40). The
water level in well Dade S 19 is affected by pumping in the muni-
cipal well field of the City of Miami.

rnAE 51Q

ED PYH 95 FT

D ESAC 91 FT

BISCAYNE AQUIFER

+9 1 1 1 + I 1 I I III
!+I -- -I -Ik Water levels offectedb'y pum ng offnearby wells

---
4. Ilfi f 1 li 11 l I Io- -

-2
DADE 610 DEPTH 6 FT CASED 6 FT BISCAYNE AQUIFER

47 --- --- - --RI- --L
4.6 -1 1 1 1 -

'W3 I 3 I I
+e

DADE 672 DEPTH 5 FT CASED 4 FT. BISCAYNE AQUIFER
.I I n

5
l 9 t. a

8
It - - -,[ 1
A JZ

1940

1945 1950.

155 1960 1965 1970 1975

Figure 43. Hydrographs showing trends and fluctuations of water levels
in wells Dade S 19 and G 10 near Miami, and Dade G 72 northwest of
Opa-Locka.

INFORMATION CIRCULAR NO. 48

M LL
LU Cfl

.; LUJ

>5
z

wo

LIJ _j
-I- 0

- J
o :>

-M LUJ
_j

LU
>
5^

I- Q

LUJ 0
_j ,
o u

I- 2

c.- LUI
_1_0

L3.
_3

LLJ UJ
a .

Lw
I-

LLU
^z
Z <

wQ:

W

Lij
UJ
LL-0
tZQ

UJ

> r

Figure 44. Hydrographs showing trends and fluctuations of water levels
in wells Dade G 596, G 618, G 613, and G 620 in central Dade County.

In the Miami area, as in other coastal areas, the contamination

of the Biscayne aquifer by the encroachment of salty water is an

ever-present problem. Through intensive practice of water control,

the situation in many areas has been alleviated. The effectiveness

of water control is graphically illustrated in figure 45 by the de-

crease in chloride content of ground water in many areas.

4

DADE G596 DEPTH 13 FT. CASED II FT. BISCAYNE AQUIFER

+12

+7 A I
+6 l
+5 I -I11
+4
+3
+2

o
-I 1

DADE G618 DEPTH 20 FT. CASED 11 FEET BISCAYNE AQUIFER

+10
+9
+6--
+7--
+6
+5
+4
+3
0---- I---- F---W-- --- ---F--

-I

DADE 6613 DEPTH 21 FT. CASED 18 FT. BISCAYNE AQUIFER

+5 -
+4 -,-- r-- i l
+3 I 1 -11--
+2 -1---- --- --- --- --
+1r I I I

0I - -
+2

-I-2

DADE G620 DEPTH 16 FT. CASED 6 FT. BISCAYNE AQUIFER

9
8
7-
6

4

2

0 45--
1945 1950 1955 1960 1965 1970 1975 1980

FLORIDA GEOLOGICAL SURVEY.

Figure 45. Graphs showing changes in chloride content of water in wells
Dade G 354 and G 580 near Miami and Dade G 469, S 529, and G 212 in
Dade County.

INFORMATION CIRCULAR NO. 48

Hydrographs of four wells in Brevard County show a long-
term downward trend of artesian levels in the Floridan aquifer.
Since 1946, artesian water levels have declined about 7 to 10
feet near Melbourne and Eau Gallie and a minimum of 7 feet at
Cocoa. Levels have declined about 8 feet on Merritt Island about
10 miles northwest of Cape Kennedy.

Hydrographs of wells in the shallow-sand aquifer in Indian
River and St. Lucie counties indicate only a slight downward
trend of ground-water levels has occurred during the period of
record.

Sarasota-Bradenton Area

The Sarasota-Bradenton area includes Manatee and Sarasota
counties in southwestern coastal Florida, and the principal eco-
nomic activities in the area are agriculture and stock raising.
The coastal section is rapidly developing as a retirement and
year-round tourist center.

Figure 33 shows the water-level fluctuations in observation
well Sarasota 9, in the Floridan aquifer, have been declining at
an average rate of about 0.5 foot per year since 1930. Water level
records for several wells in southwestern Florida indicate that
the decline is regional and that the rate of decline is accelerating.

SOUTHERN FLORIDA

The southern Florida area includes all counties south of
Lake Okeechobee and covers an area of about 17,500 square miles
as shown on page 45. The locations of selected observation wells
in southern Florida are shown on figure 34.

In southern Florida, nonartesian aquifers are the principal
source of water supply. In the coastal areas of Martin and Palm
Beach counties, a nonartesian shallow-sand aquifer is the chief
source of supply; in Broward and Dade counties, the Biscayne
aquifer is the principal source; and in southwestern coastal Florida
and inland areas, nonartesian shallow-sand and shell aquifers
are the main sources.

INFORMATION CIRCULAR NO. 48

APPENDIX

Table 1.--Summary of well data and water
levels in selected observation wells.

Table l.--Summary of well data and water levels in selected observation wells.

Well number: Well numbers are based on county numbering system e.g. Bay County well Bay 20, or on the latitudinal and longitudinal
system well 008-537-2. Both numbers 20 and 008-537-2 are given where this well has been reported previously in a publication under
the county number.
Aquifer: B, Biscayne; F, Floridan; G, sand-and-gravel aquifer; H, Hawthorn; NA, nonartesian; S, shallow sand.
Depth of well: Reported unless otherwise noted; M, measured by U. S. Geological Survey.
Frequence of measurement: A, annually; B, bimonthly; C, continuous;.D, daily; I, intermittently; M, monthly; Q, quarterly; S, semi-
annually; W, weekly.
Water level: To hundredth of a foot if measured by wet-tape method or if taken from recorder chart; to the nearest tenth of a foot if
measured by pressure gage or'airline.
Remarks: B, water level below measuring point; M, water level with reference to mean sea level; P, water level affected by pumping
of nearby wells; R, recorder installed on date shown in remarks; S, water level affected by seasonal pumping; T, water levels
affected by ocean tides.

Well number

SWater level above (+) or below (-) land surface
r 4c m M (feet)
r Prior to 1961 Highest water Maximum
mayor June level in May range
h h | ( I 96 16 M2ay or une96
0. .u us us High L w
tW- a r 1961S 1962 1961 1962
0 I e ye!ar) (year)

936-236-1

942-216-1

949-235-2

011-227-1

014-226-1

016-207-1

026-214-1

ALACHUA COUNTY
F 252 136 1958 C -23.48 -24.88
1960 1959

F 447 175 1957 B -89.55 -93.04
1958 1957
F 300 250 1960 B ---- ---

BAKER COUNTY
S 13 18 1958 C +0.17 -3.00
1959 1960

F 168 --- 1957 B --- ---

F 625 400 1945 B -55.4 -56.53
1945 1945
H 198 102 1960 B --- ---

BAY
7 (010-541-1) F 253 --- 1936 B -42.33
1947
8 (016-538-1) F 435 300 1936 B +1.80
1952
10 (014-536-1) F 300 --- 1936 B -6.76
1950
12 (017-551-1) F 290 --- 1961 B ---

20 (008-537-2) F 457 140 1951 C -117.81
1952
43 (004-535-1) F 645 238 1946 B -62.8
1948

53 (012-552-1) G 134 114 1961 B ---

62 (956-525-1) F A3 --- il tI ---

65 (006-525-1)

68 (023-526-1)

69 (025-525-1)

COUNTY

-66.69
1960

+1.08
1955

-9.53
1957

-139.0
1955
....

-23.85 -29.74 4.50 4.51

-88.52 -91.84 2.89 3.15

-37.68 -39.17 0.63 3.83

-2.21 -4.01 4.24 4.68

-- -100.48

---- -71.27

---- -18.95

--- 1.53

--- 3.03

--- 5.76

-72.79 -77.58 11.16 9.98 P

+1.20 +1.80 1.10 1.47

-9.79 -10.67 2.56 3.11

+0.72 +0.50 1.55 0.73

-132.5 -124.6 37.3 23.2 P

-92.6 -128.7 18.5 48.0

--- --- -8.97

--- --- -11.50

--- --- +4.30

-- +1.81

--- ---- -13.76

0.58 0.70

1.43 1.13

2.3 5.6

--- 1.76

--- 1.67

_I

Water level above (+) or below (-) land surface
Si (feet)
el nuer Prior to 1961 Highest water MaxRearks
V6 May- or 'June range
0 oa o a H LowIa.'
S a _' s.. (yea=r )t (.year) 1961 1962 1961 1962

BAY COOUNT--Continued
012-541-213 F 345 326 1962 M ---- ---- ---- ---- ---- 2.71

000-2zI-2

19 (305-045-1)

20 (795-043-2)

79 (347-051-1)

LA.3 (321-045-1)

L39 (334-039-1)

759-045-1

307-039-2

814-048-2

322-046-7

822-047-2

V291

G56L

G616.

,61.7

G820

C853

68 --- 1940 C +5.5 +0.5
1955 1954

-73.96 1.86 2.11

BRADFORD COUNTY

F 294 247 1959 B ---- ---- -70.84

BREVARD COUNTY

F 413 80 1934 B +27.3 +20.2 +19.6
1950 1956

F 447 125 1934 B +28.7 +21.0 +20.4
1947 1956

F 160 85 1946 B +5.1 +0.14 +1.9
1947 1956

F 206 105 1946 B +10.9 +5.7 +7.1
1953 1955

F 210 144 1946 B +14.9 +8.2 +11.5
1953 1958

S 9 4 1958 C -4.4 -6.2 -5.7
1958 1959

S 50 4 1958 C -6.5 -7.3 -7.2
1959 1960

S 9 4 1958 C -0.9 -2.9 -3.1
1959 1960

S 32 4 1958 B +21.5 +20.3 ---
1959 1958

F 129 4 1960 C +32.6 +29.9 +29.5
1960 1960

BROWARD COUNTY

B 107 --- 1939 C +4.3 +0.4 +2.2
1958 1952

B 20 20 1948 C +4.1 +0.2 -2.2
1958 1956

B 25 19 1952 C +12.9 +8.7 +11.6
1957&58 1956

B 29 28 1950 C +6.6 +2.8 +6.1
1954 1956

B 224 215 1956 C ---- ---- -2.5

B 22 21 1960 C -- -- ---

+28.1

+1.2

+1.1

+10.7

+3.8

-0.8

+2.8

0.9 1.2 M

2.1

2.1

5.1

3.0

4.5

M

M

H

M

M; Prospect
well field

M; Pompano
well field

+3.3 +2.2 3.9 4.6 M; Dixie well
field

+20;6 7.0

+19.8 3.4

-0.55 2.8

+4.3 4.4

+9.1 3.0

-6.4 0.4

-8.2 1.1

---- 0.1

S329

M

CALHOUN COUNTY

CITRUS COUNTY

-8.62 -19.83
1959 1956

CLAY COUNTY

+35.5 +21.0
1947 1957

+16.4 +11.8
1952 1953

--.-.....

-2.27 -3.05 1.39

+8.0 +7.4 1.2

+11.7 +10.9 0.5

-11.88

+24.0

+16.2

-45.67

1 (026-502-1)

7 (026-509-1)

11 (014-511-1)

15 (902-228-1)

856-223-2

5 (006-149-2)

7 (958-139-1)

948-202-6

948-202-7

948-202-8

54

131

164

271

296

COLLIER COUNTY

+13.1 +8.6
1958 1956

+26.2 +21.9
1958 1955

+5.5 +1.3
1959 1960

-3.8 -4.9
1960 1960

-9.4 -10.3
1960 1960

+9.7

+21.5

+2.4

-5.1

-11.0

-18.38 4.13

-48.36 7.57

+21.6

+15.2

-47.72

-30.94

-57.56

+8.5

+21.2

+1.8

-4.5

-11.1

COLUMBIA COUNTY

9 (010-238-1) F 836 --- 1942 C -79.60 -97.02
1948 1957

DADE COUNTY

F45 B 85 --- 1939 C +3.9 +1.6
1960 1960

F179 B 77 --- 1940 C +6.0 +0.9
1958 1945

F240 B 60 --- 1939 C --- ---

-88.99 -92.55 3.71 2.72

+2.1

+2.5

+1.5

+1.6

M; R, 1959

M

S +1.2 ---- 2.6 M; R, 1961

17 13 1940 C +5.4 40.5 +3.3
1958 1945

--- 1933

--- 1961

---- ---- -29.38

---- ---- -55.02

2.85

1.6

2.6

4.35

4.71

2.6

2.9

3.04

3.62

2.74

5.5

6.2

7.2

4.5

4.2

3.1

2.9

1.71

2.80

1.63

4.1

4.9

4.9

3.1

3.3

-45.33 feet only
May measurement
prior to 1961
-28.38 feet only
May measurement
prior to 1961

M

M

M; Naples well
field

B

8 1951

22 1952

20 1958

--- 1959

--- 1959

+1.5 1.5 1.3 M

.

? -.Water level above (+) or below (-) land surface

Prior (feet)

Well number 44 44 .0 u Maximu
ell n ber Prior to 1961 Highest water Ma I Remarks
or June level in May range
S. M ay or1-une- r1
3 .. 0.0 s -, High Low
g '- u r0 (year) (year) 1961 1962 1961 1962
P4 t year) (year)I

water level above (+) or below (-) land source
(teet)

Wel mmber P. rior to 1961 Bigbest water Maxim rk
a( ) ) level in Lay 196 192
V a may us or I0O=1

iI a. I (year) ( 962ea 19)1 19621
~rIt I ( I

P358

G3

GIO

C39

G72

GC76

G553

G580

G395

G596

G613

G614

G613

G619

G520

G757

G789

G799

G850

G851

G852

G855

8357

C858

DADE COUTY--Continued

4 --- 1940 C +6.7 -0.8 ---- +0.4 ---- 5.8 M
1954 1945

0 11 1940 C +3.0 -0.5 +1.5 -1.3 2.4 4.8 M; P
1958 1951

6 6 1940 C +6.0 +0.5 +4.3 +1.4 3.2 3.6 M
1958 1945

8 6 1939 C +7.2 +2.2 +3.3 +1.3 2.8 1.8 M; P
1958 1955

5 4 1940 C +6.5 +1.2 44.8 +2.5 3.2 3.4 M
1958 1945

4 19 1947 C +5.5 +0.4 +2.1 +1.2 1.6 1.7 M
1958 1950&56

1 79 1947 C +8.6 +1.7 +4.8 +1.4 3.7 4.1 M
1958 1956

!2 4 1960 C +4.2 +2.4 +5.3 +1.3 3.8 2.9 1
1960 1960

14 11 1949 C +8.5 +1.3 +2.3 +1.0 4.1 5.5 M; P
1958 1960

L3 11 1949 C +8.4 +3.2 +6.3 +2.6 3.9 5.7 H
1958 1952

21 18 1950 C +5.5 -0.5 +3.6 +0.1 4.8 5.6 H
1954&58 1956

20 18 1950 C +8.2 +0.9 +3.9 +1.0 3.9 6.2 H
1958 1956

20 11 1950 C +8.4 +3.7 +6.5 +3.9 3.6 4.2 M
1958 1956

12 6 1950 C +8.3 44.3 +7.5 +7.4 2.2 3.6 M
1958 1956

16 6 1950 C +7.0 +3.6 +6.0 +5.5 1.1 3.5 M
1958 1952

20 10 1957 C +9.3 +2.1 +4.9 +1.5 4.9 6.0 H
1958 1956

20 10 1956 C +7.3 +2.0 +6.6 +1.2 4.8 6.4 M
1958 1956

20 10 1956 C +7.8 +2.0 44.1 +1.7 2.8 3.4 M; P
1958 1956

22 11 1959 C +2.3 +1.2 +1.8 +1.4 0.9 2.2 M
1960 1959

18 11 1959 C +2.9 +1.8 +3.3 +1.9 1.8 3.3 M
1960 1959

22 10 1959 C +2.4 +0.4 +1.4 +0.7 1.5 3.7 M
1960 1959

20 10 1958 C ---- ---- ---- -9.1 ---- 5.0 B

19 15 1959 +3 +18 +3.5 +1.3 2.6 3.0 H
19;1 1960
20 11 1959 C +6.3 44.2 +5.1 +1.9 4.5 6.9 H
1960 1959

.Water level above (+) or below (-) land surface
,-a-am (feet)
Wl ne a >.S Prior to 1961 Highest water Maximum
Well number r 0 g M eaniu Remarks
So L o level in May range
0 .0 0 p May or June
u C S _________ ____________ ______
em VL 4j 00 t a High LowI
Wa a'. 1961a 1962 1961 1962
S'- '' (year) (year) 196

DADE COUNTY--Continued

G860

B 20 11 1959 C +5.8
1960

B 20 11 1959 C +5.0
1960

B 23 11 1961 C ---

B 18 6 1961 C ---

B 20 11 1959 C +5.3
1959

B 19 13 1959 C +1.8
1960

B 50 --- 1960 C ---

B 3 --- 1961 C ---

B 15 10 1958 C +4.0
1960
B 15 10 1958 C +5.5
1960

B 15 10 1958 C +4.5
1960

B 15 10 1958 C +5.4
1960

B 15 10 1958 C +6.9
1960

B 15 10 1958 C +6.0
1960

B 15 10 1958 C +6.7
1960

B 20 12 1960 C +2.3
1960

B 12 11 1961 C ---

B 11 11 1961 C ---

B 25 --- 1961 C ---

B 33 --- 1960 C +2.9
1960

B 25 --- 1960 C +1.3
1960

B 54 --- 1961 C ---

B 20 9 1962 C ----

B 20 6 1962 C ---

B 20 6 1962 C ---

B 52 --- 1939 C +3.2
1942

B 95 91 1939 C +7.3
1958

B 61 51 1939 U +3.2
1958

+3.5 +1.2 4.1 5.1 M

+3.0 +1.2 5.0 3.6 M

+3.7

+2.3 2.5 5.0 M; R, Nov. 1961

+1.5 ---- 6.2 M; Do

+0.4 5.8 6.0 M

+2.0 +1.6 1.4 1.4 M

+1.9
1959

+2.4
1959

+1.0
1959

+0.9
1960

+2.4
1959
+4.5
1959

+2.3
1960

+3.3
1959

+5.5
1959

+4.2
1959

+4.9
1959

+1.5
1960

+0.2
1960

+0.3
1960

+0.10
1945

-1.2
1945

-2.1
1945

+3.1 2.5 3.3 M

+3.6 0.7 3.2 M; R, Nov. 1961

+2.2 2.5 2.8 M

+3.5 3.0 4.3 M

+3.4 +1.7 2.5 2.1 H

+4.7 +2.7 3.6 3.6 H

+5.4 +4.2 5.1 4.4 H

+5.6 +2.9 3.2 3.7 M

+6.1 +2.9 3.9 4.1 M

+1.7 +1.5 1.6 3.0 M

+4.5

+1.5 1.2 3.4 M; R, Oct. 1961

+5.6 0.5 1.9 M; Do

+1.0 4.0 0.9 M; Do

+0.8 4.5 4.2 M

+0.3 -0.3 2.4 3.4 M

+1.9

+2.4

+0.1 2.2 2.9 M

--- ---- ---- M; R, Oct. 1962

-- -- -- M; Do

---- --- -- ; Do

+1.4 1.4 1.8 M; P

+1.9 -0.5 2.5 4.4 M; P

+0.3

-3.0 2.7 4.9 M; P

+4.1

+4.3

+5.3

G968

G968A

G970

G972

G1045

NP57

NP62

NP67

NP72

818

S68

o Water level above (+) or below () land surface
t a t (feet)
ell numbr s Prior to 1961 Highest water Max Remrk
Welt mbe ^ or level in Hay range
may or 6June
D. D. 301611High LOW
Y A~ eh (year) (year) 1961 1962 1961 1962

DADE COUNTY--Continued

-- 1940 C +9.5 0.0 +3.5
1958 1945

-- 1932 C +8.5 -1.0 +3.9
1958 1945

+0.7

+0.4

3.6 3.1 M

4.1 7.5 H

DE SOTO COUNTY

703-157-1 F 468 189 1962 B ---- --- ---

704-147-1 F 462 --- 1962 C --- --

720-1.8-1 F 470 --- 1962 C --- ---- --

DIXIE COUNTY

15 (937-306-1) F 215 105 1957 C -2.77 -5.15 -6.55
1959 1960

DUVAL COUNTY

--- 1938 B +27.5
1947

-- --- 1938 B +39.9
1947

875 400 1930 B +6.4
1931

- --- 1939 B +53.2
1939

729 476 1930 B +36.2
1938

900 --- 1939 B +32.9
1947

905 571 1930 M +44.9
1947

,075 --- 1930 B +39.0
1931

600 470 1940 B +40.4
'A7

--- 1940 ,.2
1947

800 --- 1940 B +25.7
1947

--- 1940 B +43.4
1952

--- 1940 B +29.9
1952

625 461 1940 B +29.6
1947

160 (018-123-1) F 585 357 1934 B +41.7
1934

--- ---- 6.95

---- --- 0.93

--- ---- 1.32

-8.20 3.26 1.86

+15.9 +21.0 +15.1
1957

+22.5 +26.4 +20.1
1957

-17.95 -15.02 -20.94
1960

+35.3 +36.8 +34.4
1959

+14.7 +17.2 +11.6
1957

+16.4 +17.6 +11.9
1957

+27.9 +28.8 +25.6
1957

+20.3 +21.7 +15.7
1957

+21.2 +23.5 +17.4
1957

+8.3 +9.1 +5.58
1957

+12.4 +11.4 +9.8
1956

+34.1 +34.9 +31.0
1956

+22.1 +21.5 +19.6
1957

+14.8 +14.1 +10.5
1960

+26.2 +25.5 +20.2
1960

9.8 9.8 P

8.0 10.2 P

4.82 8.00 P

4.8 4.5 P

7.0 8.4 P

4.5 7.2 P

4.7 3.7 P

4.4 6.2 P

7.8 8.9 P

4.5 3.3 P

4.6 4.3 P

6.3 5.3 P

4.5 5.8 P

5.2 5.6 P

6.1 8.5 P

3182

S L96A

785

12 (019-140-1)

18 (018-1440-1)

102 (019-133-1)

107 (023-136-1)

115 (016-142-1)

118 (018-143-1)

122 (023-138-1)

123 (019-142-1)

129 (015-141-1)

145 (028-137-1)

149 (024-136-1)

151 (023-139-1)

152 (027-133-1)

154 (013-135-1)

1

W Water level above (+) or below (-) land surface
Pr i o (feet)
S1 sow Prior to 1961 Highest water maximum Remarks
Well number H ay or Ju, level in May range
) ) L 1S61 12 May or June
s P s: uo High Low
(ye r) 1961 1962 19061 1962
A S I U- la (year) (yea

DUVAL COUNTY--Continued

450 1930 B +43.8 +29.0 +29.3
1931 1956

1,000 1941 C -2.06 -15.58 -13.55
1948 1956

584 1951 B +37.0 +25.6 +26.2
1951 1957

850 1951 B +35.5 +26.1 +26.9
1952 1957

450 1951 B +35.3 +25.9 +25.9
1952 1957

-- 1951 B +39.4 +29.0 +25.3
1952 1957

ESCAMBIA COUNTY

-- 1940 M -4.59 -12.00 -7.89
1940 1955

152 1940 C -69.30 -111.82 -103.27
1941 1956

239 1939 W -58.09 -82.12 -67.54
1948 1956

142 1940 C -6.50 -23.84 -14.34
1949 1955

18 1940 W -10.22 -12.53 -11.35
1944 1954

198 1951 C -39.03 -56.66 -50.94
1953 1958

350* 1951 C -77.37 -89.52 -86.67
1952 1959

G 301 --- 1954 C

G 149 144* 1959 W

G 65 60* 1959 W

G 170 165* 1959 M

39 (023-716-2)

45 (036-719-1)

46 (031-716-1)

62 (024-715-1)

62A (024-715-2)

73 (035-715-3)

74 (036-716-1)

83 (035-714-3)

026-713-5

026-713-6

032-724-1

054-726-1

054-726-2

14 (927-115-1)

44 (928-122-1)

201* 1959

102* 1959

--- 1936

--- 1956

-36.10 -41.99
1955 1956

-58.15 -58.90
1960 1960

-51.78 -51.98
1960 1960

-86.40 -89.48
1960 1959

-70.88 -74.92
1960 1959

FLAGLER COUNTY

-3.4 -7.38
1937 1956

-7.67 -11.41
1959 1956

-37.05

-59.15

-52.46

+25.8 3.8

3.85

+23.5 3.7

+24.2 3.7

+23.2 3.5

+22.3 6.6

-10.95

-101.71

-68.66

-15.22

-12.02

-51.76

-86.30

-37.53

-59.57

-52.14

3.04

2.79

2.86

3.97

1.55

5.90

3.06

7.37

].63

1.90

4.5

2.62

3.7

3,8

4.1

7.8

4.24

1.94 P

3.75

5.72

2.91

4.10 P

2.70 *Screened from
260 to 270 feet
and from 340 to
350 feet

6.48

5.08

5.77

-91.22 -91.93 1.25 1.61

-85.64 -82.95 3.75

-69.68 -65.21 5.62

-7.12

-9.16

P

*Screened from
144 to 149 feet

*Screened from
60 to 65 feet

*Screened from
165 to 170 feet;
-91.18 feet only
Hay measurement
prior to 1961

*Screened from
201 to 206 feet

*Screened from
102 to 107 feet

-8.19 2.30

-11.44 5.60

F 840

F 1,920

F 1,393

F 1,025

F 700

F 556

(025-125-1)

(015-145-1)

(026-135-1)

(026-135-2)

(026-135-3)

(025-136-1)

G 206

G 107

F 417

F 159

SWater level above (+) or below (-) land surface
Sto 191 (feet)
3 Prior to 1961 highest water aximm

l Kay Lor June l ,

(Iear) H Ig yel) 1961 1962 1961 1962
a'-a- ~ (ea) (year)

FRIANU J COUNTY

-1.86 -2.47
1959 1958

+3.95 +0.40
1950 1952

Remarks

-1.80 -4.45 1.42

+2.20 +1.55 1.00

---- ---- -11.26 1.23 1.09

10 (950-439-1)

31 (943-458-1)

947-446-1

957-443-1

035-434-1

039-425-1

953-251-1

30 (948-518-1)

33 (939-521-1)

34 (006-511-1)

036-305-1

731-145-1

+2.97 0.93 2.20

-90.96 13.68 1.40

-143.96 3.00 4.07

-22.11 8.27 10.95

-8.93 2.14

+1.29 0.75

-10.0 3.0

3.06 P, prior to
1954

0.45

22.5 P

F --- --- 1961 B ---- -- ---

GADSDEN COIUNY

F 406 --- 1961 B ---- -- --

F 525 381 1961 B --- -- ---

GILCHRIST COUNTY

F 65 42 1961 B --- --- --

GULF COUNTY

F 522 475 1946 C -7.11 -27.22 -7.50
1956 1950

F 595 487 1961 B --- --- --

F 578 248 1961 B ---- --- --

HWMILTON COUNTY

F 273 60 1961 B --- --- ---

HAIDES COUNTY

F 450 --- 1962 C --- ---

-33.60

--- 8.88

ENDmY COUNTY

+19.5 +14.3 +18.0
1958 1956

-3.5 -6.3 -5.0
1952 1956

HERNANDO COUNTY

F 140 --- -1961 --- --- --

HIGHLANDS COUNTY

S 26 22 1948 C +130.4 +126.0 +128.2
1953 1949

s 45 41 1948 C +90.7 +83.9 +88.6
1958 1956

S 10 8 1956 C +48.3 444.5 +47.1
1957 1956

S 20 16 1948 C +28.9 +22.7 +24.6
1957 1956

-20.28 2.50 3.51

+136.8

+84.9

+44.2

+21.6

380 --- 1958

-- -- 1949

98 --- 1961

Well number

-101.78 0.87 11.04

1941 *D,
*1C

1941 C

+14.2 4.7

-6.2 2.8

M; *D, 1941-44;
*C, 1950-

B

838-215-1

9

10

11A

13

' --

S" :Water level above (+) or below (-) land surface
e 9: 44 w(feet)
U bs r
ell n r Prior to 1961 Highest water MaxRemarks
Well number W Q4 | U 6 Maximum Remarks
l__0 0 r a ^ level in May rage
S -a w Hay or June range

Q 1 91. 6 (year) (year) 1961 1962 1961 1962

1948

1948

1956

HIGHLANDS

C +22.2
1960

C +58.3
1953

C +116.9
1958

COUNTY--Continued

+14.7 +21.5
1951

+53.8 +57.3
1956

+112.6 +114.3
1956

+17.0

+55.3

+111.4

.HILLSBOROUGH COUNTY

46 1930

34 1950

97 1951

65 1957

--- 1958

-6.70 -11.05
1931 1956

+8.70 +1.63
1959 1952

-50.82 -57.98
1958 1956

-42.52 -47.04
1958 1960

+0.55 -2.89
1959 1960

HOLMES COUNTY

+4.92 +1.82
1960 1956

-8.09 -15.66
1949 1956

-10.74 -11.91 4.47 5.82 P

+3.01

-54.60

-5.64

+3.10

-9.94

-5.99

+3.98 5.87

---- 9.42

-61.05 11.24

-8.06 7.57

+3.60

-12.45

-5.77

13 (807-230-3)

30 (744-225-39)

500 (742-219-1)

751-203-1

801-213-15

4 (043-556-1)

7 (058-535-1)

7A (058-535-2)

050-548-1

051-556-1

052-545-2

25

23 (042-453-1)

044-506-1

046-515-1

053-527-1

058-503-1

INDIAN RIVER COUNTY

S 19 13 1950 C +30.2 +25.4 +27.7
1957 1956

JACKSON COUNTY

F 475 100 1950 B -22.54 -38.15 -31.38
1958 1951

F --- 94 1961 B --- --- --

F 180 --- 1961 B --- -- ----

F 341 260 1961 B --- --- --

F 83 --- 1955 B --- --- ---

+26.9 3.2 4.7 M

-25.20

-76.05

-99.78

-86.70

-26.53

6.26

5.89

8.97

10.62

3.10

2.17

10.61

--- --- --- +3.90 1.00 4.86

---- ---- -- -205.76 5.03 4.40

-- -- -- +13.8 5.1 5.8

*Screened from
10 to 13 feet
-3.83 feet only
May measurement
prior to 1961

9.68

4.03

3.49

7.56

2.57

7.19

6.25

9.28

14.66

5.10

? Water level above (+) or below ()"land surface
yr yea -:(feet) .
ei n r > o Prior to 1961 Highest-ater RMaxir
eUL number a level in May Remarks
o May or June nge

Uear) 1961 1962 1961 1962

022-356-1

038-336-1

0-38-317-1

953-312-1

18 (857-133-1)

20 (900-123-1)

22 (909-131-1)

322-149-L

322-149-2

332-154-1

832-154-2

841-156-1

2.46

414

7 (027-416-1)

36A (037-410-2)

LEON COUNTY

165 1945 C -149.05 -169.91
1948 1955

38* 1935 H -1.42 -33.14
1948 1956

115 (031-420-1) F 194 104 1950 B -78.1

-159.67

-5.16

-141.90

-23.75

-44.04'11.99 2.49

-8.89 3.86 3.23

JEFFERSON COUNTY

F 216 169 1960 S -140.57 -141.02 -141.30
1960 1960

P 183 147 1960 S -19.10 -19.40 -22.03
1960 1960

LAFAYETTE COUNTY

F 106 --- 1961 B ---- -

F 146 112 1961 B -- ---- --

LAKE COUNTY

F 190 --- 1936 B -50.52 -59.82 -51.82
1960 1957

F 252 --- 1936 B +9.9 +5.52 +7.6
1942 1956

F 254 --- 1936 B -0.80 -3.10 -2.10
1959 1956

F 192 100 1959 S +111.70 +110.45 +109.57
1960 1960

S 23 18 1959 S +113.04 +111.20 +110.21
1960 1960

F 160 63 1959 C +101.62 +100.41 +99.57
1960 1960

S 30 17 1959 C +101.93 +99.92 +99.56
1960 1959

F 754 483 1961 B --- --- --

LEE COUNTY

S 27 19 1945 C +19.2 +10.5 +16.3
1959 1949

H 94 60 1948 C +18.8 +11.1 +17.0
1957 1955

4.91 2.65

1.9 1.75

1.82 1.64

3.04 --

3.94 --

3.24 2.98

3.52 3.42

2.42 1.95

5.0 6.8 M; P

8.4 7.2 M; P

4.43 4.94

15.53 13.01 *Screened from
38 to 41 feet

-93.3 -81.4 -84.6 3.2 3.9

1960 1957

-57.32

+5.60

-3.54

+108.25

+109.74

+98.65

+99.27

-22.82

+12.6

+14.5

-160.80

-14.99

ater level above (+) or below (-) land surface

*3 ou-----S'-----*----------T-l~~ I~
.(fee

l n r Prior to 1961 Highest water Maximum a
Well nmber May or June level M range

h 1961 1962 1961 1962 H
4 0 44 8 :1 W 1961 1962 1961 1962
1z cg (year) (ear)

LEON COUNTY--Continued

S 57 --- 1960 C -7.88 -8.72 -12.25
1960 196C

S 15 12* 1960 B ---- ---- -5.10

F 296

F 231

106 1960 M --- --- -74.64

-- 1960 C --- ---- -165.26

LEVY COUNTY

F 58 --- 1961 B --- --- --

F 96 -- 1961 B --- ---

- --- 1955 B

242 1960

89 1961

--- 1961

--- 1961

LIBERTY COUNTY

--- --- -4.68

--- --- -23.05

---- ---- ----

---- ---- ----

---- ---- ----

MADISON COUNTY

17 (029-325-1) F 320 300 1953 B -20.16 -38.12 -27.13
1959 1955

18 (028-325-1) F 322 307 1952 C -18.18 -34.87 -24.35
1960 1955

MANATEE COUNTY

92 (726-218-1) F 600 154 1941 B -37.10 -47.60 -49.12
1947 1956

-11.94 3.79 5.51

-6.19 2.54 3.90 'Well point Z
to 15 feet:
-4.98 feet only
May measurement
prior to 1961

-77.26 4.31 4.47

-170.17 5.64 4.22

-8.34 1.71 3.07

-0.55 0.16 0.13

-5.03 3.3 3.81 -5.68 feet only
May measurement
prior to 1961

-24.32 4.24 3.38

+7.2 1.0 4.6

+2.90 1.8 1.58

-85.64 0.83 1.07

-28.03 7.57 8.07

-24.83 6.15 6.66

-52.65 7.31 9.41

MARION COUNTY

5 (911-159-1) F 135 135 1933 C +13.62 +3.35
1960 1957

47 (902-156-1) F 179 --- 1936 B -13.84 -24.26
1960 1956

48 (859-150-1) F 152 --- 1936 B -1.07 -10.23
1959 1956

49 (910-138-1) F 175 --- 1936 B -25.0 -31.19
1942 1957

+11.20 +6.17 5.09 2.79

-16.29 -22.04 5.14 2.44

-0.82 -6.68

--- 2.84

-25.77 -29.92 3.90 1.64

51 (910-210-1) F 106 --- 1935 B -26.04 -34.39
1960 1956

-28.44 -32.82 4.15 2.47

024-420-1

024-420-2

026-418-1

034-407-1

902-241-1

919-245-1

14 (001-459-1)

15 (022-841-1)

010-440-1

023-447-1

028-456-1

S after level above (+) or below (-) land surface
S. -(feet)
e I M s Prior to 1961 Highest vater m Maaki
Well nuber May or June leveling May angarks
SH ) 61 1962 1961 1962ay June_
0 0.: a: g: g High Low
S," (a 1961 1962 1961 1962
d lf (year) 11ear)

31

74

11

15

580

680

640

1,000

569

580

540

350 1939

--- 1939

--- 1939

--- 1939

450 1934

--- 1940

--- 1940

504 1940

609 456

591 422

766 524

690 527

.....

1936

1947

1947

1948

1947

1948

1947

MARTIN COUNTY

+20.2 +16.2
1957 1953

+9.8 +4.2
1958 1957

+32.4 +29.0
1957 1959

+23.4 +20.8
1960 1960

NASSAU COUNTY

+42.0 +21.6
1947 1957

+41.1 +24.9
1947 1959

+24.0 -17.23
1947 1955

+10.1 -26.10
1946 1957

+19.8 +3.3
1947 1957

+40.5 +22.4
1940 1956

+42.0 +26.3
1947&48 1957

+33.1 +8.5
1947 1957

OKALOOSA COUNTY

+20.1 -47.67
1950 1957

-93.3 -111.2
1948 1960

-108.1 -121.9
1949 1959

-27.9 -55.0
1951 1959

-102.3 -119.1
1948 1960

-46.8 -62.6
1948 1960

+26.6 +3.6
1950 1959

+19.1

+7.0

+30.0

+23.3

+25.2

+24.2

-2.14

-17.12

+3.73

+27.0

+28.6

+14.1

-42.93

-115.0

-122.6

-60.7

-121.7

-65.2

+19.2

+2.9

+28.4

+21.1

+20.8

+20.6

-12.64

-25.58

+0.26

+22.1

+26.2

+9.3

3.8

4.8

2.7

3.7

6.6

4.3

18.92

28.93

6.11

3.9

3.4

9.7

3.4

6.3

5.9

3.5

4.6

4.2

15.62

17.15

4.04

6.5

1.9

10.0

M

M; P

M

M

P

P

P

P

P

P

P

P

-70.26 25.19 43.30 P

--- 7.3 ---- P

-124.8

-65.2

-126.4

-66.5

-9.22

3.1

13.2

4.7

2.4

13.82

2 (035-127-2)

8 (032-126-1)

12 (038-127-1)

27 (040-126-1)

4A (037-136-1)

50 (03b-142-1)

51 (033-150-1)

55 (037-130-1)

3 (024-636-1)

(034-626-1)

25 (038-631-1)

27 (030-635-2)

29 (035-637-1)

31 (037-645-1)

34 (028-629-1)

SWater level above (+) or below (-) land surface
S- o .. I" (feet)
Uell number X | Prior to 1961 Highest water. Maximum a
Well number May or June n ay ange Remark

Snm n.m O P s High Low
S2, A (year) (year) 196 1962 1961 1962

OKEECHOBEE COUNTY

2 S 21 18 1949 C +46.7 +39.8 +43.6 +39.1 4.0 8.9 M
1957 1949

3 S 22 19 1948 C +61.3 +56.7 +58.2 +58.5 3.6 4.7 M
1959 1950

ORANGE COUNTY

47 (832-128-1) F 350 328 1930 C -1.50 -10.97 -4.56 -12.25 10.44 6.94
1948 1956

47B (832-128-3) S 17 17 1948 B +3.04 -8.98 -1.11 -10.01 12.07 4.18
1960 1956

47C (832-128-4) S 50 46 1948 B -27.47 -39.35 -30.44 -36.40 9.98 2.66
1960 1953

832-105-1 F 492 151 1960 M ---- --- -26.51 -28.33 3.44 4.55

OSCEOLA COUNTY

171 S 19 12 1950 C +32.1 +28.0 +30.9 +29.9 3.4 4.4 M
1957 1956

179 S 18 18 1949 C +47.1 +43.3 +44.8 +44.1 4.1 4.5 M
1960 1950

181 S 15 14 1948 C +77.9 +72.4 +73.8 +72.2 3.1 3.7 M
1957 1956

182 S 23 16 1949 C +61.3 +56.7 +58.9 +57.5 3.8 4.7 M
1957 1950

183 S 27 22 1948 C +73.2 +68.3 +70.9 +69.6 3.9 4.2 M
1957 1956

PALM BEACH COUNTY

88 B 17 16 1944 C +8.6 +3.6 +5.3 +4.5 4.1 5.1 M
1948 1956

99 B 18 16 1948 C +10.0 +5.5 +6.6 +6.6 3.0 3.5 M
1957 1956

108 B 37 12 1950 C +17.0 +14.3 +16.3 +16.4 1.6 1.8 M
1957 1951

109 B 14 9 1950 C +18.9 +15.0 +18.0 ---- 2.9 3.8 H
1957 1956

110 B 8 8 1951 C -2.8 -5.6 -3.0 ---- 3.2 3.4 B
1957 1952

436 B 12 11 1956 C -2.10 -4.3 -3.1 -3.2 2.0 1.9 B
1957 1960

SWater level above (+) or below (-) land surface
"I < ie_. .' -. (feet)
l ma er 5 Prior to 1961 highest water Mai mus
ll ber My or June level in ay rangeark

. 1962 1961 1962Hgh -
a-, ,-- -- (yea)_ ( ear) 96i 1(year962 -96 162

13 (815-226-1)

325-211-t

13 (808-245-1)

77 (304-243-1)

i0i (S3u-246-L)

166 (303-247-1)

246 (738-247-1)

53t(750-240-l)

663 (758-244-4)

667 (759-243-i)

! (910-136-1)

43 (739-138-1)

47 (310-136-2)

48 (732-L31-1)

49 (748-119-1)

51 (744-131-1)

733-158-311

802-132-1

305-155-2

805-155-3

806-156-1

-8.92 3.17 4.41

-22.14 6.98 6.05

PASCO COUNTY

F 49 43 1934 C -4.77 -10.1 -8.03
1959 1945

F 227 49 1959 C -9.97 -11.88 -16.93
1960 1960

PINELLAS COUNTY

F 141 33 1947 C -8.29 -10.70 -8.89
1948 1950

F 282 --- 1947 C -64.41 -68.01 -65.70
1959660 1949

F 230 25 1947 B -26.55 -27.57 -28.11
1959 1960

F 193 --- 1945 B -12.18 -18.34 -12.91
1951 1953

F 208 --- 1945 C -25.12 -28.72 -25.86
1948 1956

F 188 --- 1947 C -1.53 -4.04 -2.90
1948 1956

F 24 81 1954 C -20.12 -24.55 -21.60
1959 1955

F 843 --- 1954 C -53.32 -56.68 -54.49
1959 1955

POLK COUNTY

F 195 81 1945 C -1.70 -4.85 -3.17
1960 1956

F 643 325 1948 C -63.65 -76.68 ---
1948 1955

S 67 60 1948 C +111.7 +107.3 +108.5
1960 1956

S 62 59 1949 C +100.8 +96.2 +99.6
1954 1956

S 17 14 1949 C +104.7 +99.1 +101.0
1957 1956

H 319 208 1949 C -5.08 -14.20 -10.10
1958 1955

F 710 237 1955 C -15.88 -28.60 -28.15
1958 1956

F 463 137 1959 B --- ---- -7.65

F 311 82 1956 B -15.16 -22.07 -21.59
1959 1956

H 72 62 1955 B -12.52 -19.29 -17.86
1959 1956

S 11 8* 1935 B -3.63 -7.82 -6.09
1959 1956

H 103 63 1956 B -16.89 -22.73 -24.22
1959 1956

-9.05

-66.63

-29.53

-15.20

-26.42

-3.62

-22.38

-55.32

-5.34

-84.82

+107.1

+97.3

+99.9

-14.56

-37.04

-25.64

-21.73

-8.86

-29.65

1.19

1.90

2.11

5.88

2.00

1.53

2.33

2.03

2.76

7.85

3.5

3.2

2.8

8.73

10.96

0.94

5.77

5.26

2.82

8.25 9.71

1.54

2.38

2.86

6.76

2.26

1.80

3.24

3.03

2.23

11.93 P

1.5 M

1.6 M

5.8 M

10.15

13.02 P

1.97

6.73

5.75

1.91 *Screened from
8 to 11 feet

806-156-2

S- ater-level above (+) or below (-) land surface
-. (feet)
4 -
..... rior to 1961 Highest water Maximum
Well number S s Remarks
Well number M level in May range
a May or June
S ( "9 O6 119. -
*o j a 0 High Lo
-1 0: a ( 1962 1961 1962

28 (925-138-1)

29 (939-138-1)

937-153-1

939-134-11

943-152-1

5 (007-123-1)

8 (005-129-1)

9 (953-118-1)

000-123-2

937-122-1

941-129-7

947-126-1

159

300

300

547

124

350

336

1,400

258

622

541

275

17

18

197

41

211

128

-7.27

+5.19

-29.51

+2.55

-43.20

-9.81

+2.02

-31.81

-1.75

-44.96

--- 1936 B

--- 1936 B

--- 1934 B

113 1958 B

--- 1956 B

180 1934 B

240 1934 B

170 1930 B

--- 1957 B

142 1958 C

--- 1955 B

--- 1956 B

13 1950 C

13 1950 C

PUTNAM COUNTY

-6.2 -9.14
1944 1956

+10.8 +4.47
1936647 1956

-30.30 -35.65
1959 1957

+4.26 +3.21
1959 1960

-44.91 -46.66
1958 1957

ST. JOHNS COUNTY

+43.9 +36.7
1951 1957

+36.5 +23.7
1947 1957

+34.2 +22.5
1947 1956&57

44.72 +2.64
1959 1957

-17.30 -18.70
1959 1960

+10.1 +7.39
1959 1957

-1.55 -6.1
1958 1956

ST. LUCIE COUNTY

+28.2 +25.2
1957 1956

+26.9 +24.1
1951 1955

SANTA ROSA COUNTY

-80.1 -91.3
1948 1957

-4.43 -9.52
1960 1955

-82.94 -85.77
1960 1959

........-

2.39

2.80

1.21

4.35

1.64

3.9

3.7

4.0

4.44

2.96

8.83

15.13

+26.7 2.5

+24.6 3.0

-88.3

-6.79

-83.62

+3.78

0.9

2.32

1.59

1.87

1.64

3.24

3.68

3.60

1.40

5.3

4.6

3.8

3.24

3.30

6.8.3

6.81

3.4

4.7

2.1

3.09

4.55

3.01

P

P

H

M

*Screened from
31 to 41 feet

*Screened from
206 to 211 feet

*Screened from
123 to 128 feet;
+4.46 feet only
May measurement
prior to 1961

G 98 "93* 1959 B -56.34 -56.54 -59.35 -56.39 4.41 2.66 *Screened from

+39.6 +35.0

+26.4 +23.3

+23.3 +19.5

---- -0.57

-18.80 -21.49

+6.7 +1.52

-6.21 -10.86

+27.4

+25.0

-85.7

-5.40

-82.84

+4.83

10 (032-648-1)

102 (021-709-8)

035-706-1

040-708-1

041-649-1

1960 1960

93 to 98 feet

SWater level above (+) or belowv(-)lan surface
c. <_ (feet)
a b.a Prior to 1961 Highest water Maximum
Well number r %. 162 Remar1
S. 0 0 C -^ | May or June level

a m igh I Lo 1961 1962 1961 1962
n'- P 'I- 3 (year) (year)

SARASOTA COUNTY

9 (719-225-1) 7 730 101 1930 C +4.51 -5.60 -6.00
1931 1956

SEMINOLE COUNTY
125 (841-122-1) F 158 74 1951 C -34.18 -41.33 -37.86
1960 1956

257 (847-113-6) F 206 --- 1951 B +5.10 +1.40 +2.66
1953 1956

SOUMER COUNTY
852-201-1 F 125 45 1961 B ---- --- --

SWANNEE COUNTY

019-249-1 F 138 135 1961 B -- -- --

F 256

F 724

107

180

113

138

351

235

234

496

220

235

TAYLOR COUNTY

189 1946 C -1.00 -28.6
1949 1957

--- 1947 C -5.10 -23.95
1948 1957

UNION COUNTY
198 1959 B --- ---

694 1958 C -86.92 -88.45
1959 1960

VOLUSIA COUNTY

--- 1936 B -11.86 -18.54
1951 1956

--- 1936 B +11.2 +6.7
1959 1948

--- 1936 C -4.72 -7.9
1953 1945

--- 1936 B -1.2 -4.51
1937 638 1956

93 1955 C -0.22 -3.66
1958 1956

102 1955 B -5.25 -5.87
1959 1955

102 1955 C -4.95 -7.56
1958 1960

480 1955 B -6.62 -7.18
1958 1960

152 1955 C -12.84 -16.65
1958 1960

115 1955 B -15.72 -20.81
1955 1958

-23.8

-10.6

-7.98 6.71 7.77

-41.77 5.06

+0.27 3.50

3.89

3.06

--- 4.06 0.75

-33.02 2.30 3.14

-29.1 16.3 13.5

8 -15.04 6.97 1.89

-89.54 -92.57 2.21

-88.56 -91.89 3.04

-16.93

+9.6

-6.33

-3.32

-1.66

-7.07

-6.78

-8.17

-14.71

-22.97

-18.57

+8.2

-7.8

-4.94

-2.72

-8.86

-8.95

-9.81

-17.27

-23.21

1.73

3.4

2.99

1.48

2.86

2.18

3.55

2.01

5.40

7.08

1.82

2.02

1.76

1.8

3.96

2.39

3.78

3.41

5.25

2.58

7.61

5.58

F 500 483 1955 B -10.26
1958

35 (003-330-1)

36 (004-331-1)

001-224-1

007-222-1

29 (911-125-1)

30 (917-128-1)

31 (856-105-1)

32 (919-125-1)

905-113-3

909-106-1

909-106-4

909-106-9

910-105-1

911-104-4

-12.63
1956

-12.07 -13.82 2.31 2.49

911-104-9

S:-Water level above (+) or below .(-) land surface
a u r w (feet)
co o _.o ----- -- ----
Well n e a Prior to 1961 Highest water Maxibm rk
Well number 0 Reiiarghs
Well numMay or June level in May range
S-a-oa Hay V or June e
0 0. 0. U High Low
S(year) ( ) 1961 1962 1961 1962

WAKULLA COUNTY

2 (009-412-1) F 65 22 1937 B -0.86 -3.05 -2.27 -2.03 1.84 1.23 T
1958 1951

11 (000-426-1) F 70 45 1946 B -5.58 -8.25 -7.31 -6.70 1.22 2.58
1955 1960

005-417-1 F 87 --- 1961 B --- ---- ---- -2.43 2.36 2.03

011-410-1 F 80 --- 1961 B -- ---- --- -1.87 1.45 0.83

WALTON COUNTY

13 (022-606-1) F 450 --- 1936 B +15.8 +11.1 +11.4 +11.2 1.1 1.7
1950 1956

17 (029-607-2) F 187 --- 1947 B +30.7 +25.4 +25.9 ---- 1.6 1.5
1948 1957

019-610-1 F 615 188. 1961 B ---- ---- ---- +12.5 0.3 1.0

023-610-1 F --- --- 1961 B ---- -- ---- +14.3 0.8 0.6

029-614-1 F 160 --- 1961 B --- -- -- ---- +20.5 0.9 1.0

043-612-1 F 509 323 1961 B ---- -- --- -148.2 1.9 4.6

WASHIHGTON COUNTY

4 (046-548-1) F 785 --- 1935 B -9.47 -15.09 -12.06 -12.26 6.66 6.73
1953 1954

--- -19.65 1.37 4.83

037-542-2 F 206 202 1961 B

FLRD GEOLOSk ( IC SUfRiW

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	Title Page
	Table of Contents
	Introduction
	Well-numbering system
	Principal aquifers
	Northern and North-Central...
	Southern Florida
	Appendix