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STATE OF FLORIDA
STATE BOARD OF CONSERVATION
DIVISION OF GEOLOGY




FLORIDA GEOLOGICAL SURVEY
Robert 0. 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




Hi







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.,
Florida ................................................
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


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

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


........ .. o
. ......, .
.........,...
. ...........
............,

.. .... ... .


......,..... ...... ............,
. ., ........ ..... ..............
........ .... .................






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,
F lorida ............... ................................ 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 Jacksonville 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 precipitation 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 Everglades, 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 8196A near Redland, Dade F179 at Miami, and Broward
S329 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 precipitation 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 northwest 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 Page Page Page Page Page Page Page Page Page


Page Page Page Page Page Page Page Page


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 abc 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 detrimentally 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 demonstrate the interplay of those forces in the ground-water environment 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 waterresources investigations.

The hydrologic data-collection program of the U.S. Geological Survey is part of the cooperative investigations of the groundwater resources of Florida, in cooperation with the Florida Geological Survey and other state and local agencies and municipalities. 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 I lists data on 335 observation wells selected from the State-wide network of wells.

The water-level data used in this report represent measurements taken from automatic water-stage recorder charts, pressure gages, and those made by wet tape. In general, water-level measurements made by tape and stage recorder are shown to the nearest 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 ofwell, 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 availafle for these months for a large percentage of the wells. Also, ground-water levels generally 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 waterlevel and related data. Water levels for selected wells are published, 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. 0. Box 2315, Tallahassee, Florida 32304.

WELL-NUMBERING SYSTEM

Two well-numbering systems are used in this report. Observation 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 renumbered 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 municipal 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 northwestern 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 irrigation. 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 usefulness of the Biscayne aquifer is sharply restricted in areas adjacent 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 extends 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


3105

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

Cosntor represents the Ihight, in feet safer to mm sea
level, to which wae would have risen in tightly cased wells that penetrate the major w-ar-lwring farmtians
in the Floridan aqeifer. July 6-17. 1961.
Cont,,r interval 10 and 20 feet, charging at meat sea level.


Area of oneion flow
Extent atd distribution, of flow areas vary with fluctuathtns
of the pleaoletric surface, particularly in maa of heavy pumping. Relatively sall areas of artesian fl1w are rot included immediately iedjoca t to and paralleling the coast and may of the major rivers and springs.




0 10 20 30 40 50 miles


Taken from Map Series No.4 by K.G. Healy, 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 counties 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 counties. 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 2
f
Ii HOLMESSO"
H 0L ---O--1J A C K S 0 N

1W A L TON/
IW AS H I N G

BAY CALI4OUN4
BAY
BAY I





INFORMATION CIRCULAR NO. 48 9

4,60a. . . j .




,'
oo



z



0 ) 0)0 O ) )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 presents data on 13 wells in Escambia County. Figure 6 shows fluctuations 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-andgravel 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 194062.

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


ESCAAMBA 45 DEPTH 152 FT. CASED 152 FT.


SAND -AND-GRAVEL AQUIFER


(ARTESIAN)


.,


.9




-.i


5r 3o





LU .








to
LU
o


hu
zj Ul


1940


1945


1950 1955 1960 1965 I10 1975


Figure 6. Hydrographs showing trends and fluctuations of water levels in
wells Escambia 45, 46, and 62, Pensacola area.


68

72

8

82





92\

94


102,


0\o I I 14 2--WatereI- is ffect p - of near- we.




ECAM131A 46 DEPTH 239 FT CASED 239 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN) 56

62






76 I I



82
66

as

ESCAIA 62 DEPTH 142 FT. CASED 142 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN) 10 Q I I I I I I 11 \"' II ,/ v
10 - - -- -





















2628
30






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.



V
18 . ..t .. .. .., . , ,

JFMAMJJASN JFMAM4JJSONDJFMA MJJASONDJFMAM JFM'UAMJ JAS0NS'
1960 1961 1962 1963 1964



4 .2



4

J F MAMJ J ASO N'DJF MAMJJ So' D AVJ 0I J F M A M i J AS-. JF. UA -J'JAO A S 0N*D
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 Washington, about 30 miles east of Ft. Walton Beach, shows the trend of decline in water levels during 1947-62 (p. 19).







FLORIDA GEOLOGICAL SURVEY


G(LOS DEPTH 800 FT.


CASED 5i00 F+


FLORI DAN _AOUJIFFR


U1
==






==







z Z
,,=


1945


1950 1955 1960


1965 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--- -- --4- - - I

2 "-. I-I I I-I I
-162- t III J I - I


-36I



-40 ------ --
-44 ---48- - - ---
-52---- ---------56 -- ------

-4 Water lee o Aug. 19, t936 was








-9yelis affected by regional pumping:1 - -9 1 I I I II I I11 1I
'iO T 1 I" I I I1 1 I I I I I I I











10KALOOSA 25 DEPTH 609 FT. CASED 456 FT. FLORIDAN AQUIFER Ica I I .
11 6: 1 1 [ l l l , ,












120 - - -12B~j
132

l Water level isaffected by regional pumping
144 -11 1 1 1 1 1 148 --

44KALOOSA 31 DEPTH 690 FT. CASED 527 FLORIDAN AQUIFER 48 ----------------1-1-1-1--
,- 68-l N I II I 1
56 54'
























84 Waterlevelisaffectedbyrgoapu in so i l ei i i ii iii, I I I I I I
OKALOGSA 25 DEPTH 60 FT. CASED 56 FT. FLORIDAN AQUIFER



































912 ,_.j


-Jo

-,.
LU
U, gx I- ccJ
-1


I.- L

a
_U=

UL

ILcc









A B A M A

--r IR


SANTA ROSA


OKALOOSA








32j
23


WALTON -'z
Net change of ground-watet
levels in the Floridan aquifer

Net change of ground-warer
levels in the sand-andgravel aquifer r
023
Observation well
number 23


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


BIA


0













0
00








A 8 A M A 0 R I D A
ROSA OKALOOSA WALTON I I

rm


0 5 10 20


30 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, nonartesian, 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.















z1,20Q
-J
-J
CD1100z
o IOOQ-



3~




90Q .00

Figue 1. Gaph howng otalyealy unipgePanma CtyFloida






INFORMATION CIRCULAR NO. 48


WALTON 13 DEPTH 450 FT.


FLORIDAN AQUIFER


WV



LU> I-C
01 tu
m


1945 1950


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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.


18- 1j ] 24 42


16 N .'-00'

12
50 -- - -
8 Water level is affected by regional pump',ng
4 F 1 11I 11II 11 11 I --IIII

BAY '7 DEPTH 253 FT. FLORIDAN AQUIFER 36

40 .7 1! I .


44 1 F I 46 I 48 50 v
52-
54
56--------60
62-----------64 --
66

70- IV- - -
72
74
76

78- -- - -80
82 -- - - - -
78-4

88 Water level is affected by pumping of nearby wells i 88 "-

92 I HI
WASHINGTON 4 DEPTH 785 FT. FLORIDAN AQUIFER
0
2
4 --- -- -

8 -- - - -

12 - 14 V-- - -
16 -----18
20 - -
22
24
26 --28
30 1 T


co


0 IJJ
z

-J








0 rn



I
-R,









0:
_1














rn
LuJ
















('JNEFAFERSONMITO

S-' U
W A J 1 ""


W A K U L L A J UANt


GULF OF MEXICO

191'.1


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










A,000.~_____C, oo, ,
S"2006-__Z2000


LA.

02.12000.m

0








MI i I I' r i I
oo ,


a-,0 _ __ __ ____ 0 In00


9! m
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 Tallahassee 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 industrialized 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 seasonal 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. However, 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 about 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 groundwater levels in several counties.






INFORMATION CIRCULAR NO. 48


4 158
V
0 LEON?
1601 A__ 162

um 164

JFMAMJJASONDJFMAMJ JASO NOJ FMAMJ JASONDJ FMAM J JASONO JFMAMJ JASOND
1960 1961 1962 19613 1


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 observation wells for which hydrographs are given are shown in figure 20.

The principal source of ground-water supply in western coastal 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 1 t52 -1 - - _155


161- 1 __ - 164 1 1 I I A

170 -ls173 ater level is affected by pmping of nearby wells

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



20---------~---~N-m
23 \)A. 29- 1 \ KIN
32--- -35
38--


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



75--
79




--



!CZF
Imin

NASSAU 12 DEPTH 640 FT. FLORIDAN AQUIFER
-30











-9
-62
15 ---- -







.-15

-24
Water level is affected by regional pumping F I ,-27' .
- I I II0I I I I I I
SJ - - -- -


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.


LL

C C:





16,00Q,



14,00 12,000 Z0 10,000L



6-71.0



6400Q
61000.. .


a



33
41000 1 Min~f-


_ 1JJ "


0


U-)
a,


_N


s-/-iV"/'/ A."/ AX 7K'/, "/'


0


I I I I


U,
a,


0


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


U),
-J

01


.
0 U,
z
0





w


0


A


1W %"


Jr J


u


V // 7// //,,////, ///,/// /,, /,







FLORIDA GEOLOGICAL SURVEY


. ~N A 5 DEPTH 580 FT.


FLORIDAN AOUIFIER


U Ca 4






CtL. Ca



LU4





CL




SU









LU, 4 Ca




U.1 CU



0

LU.1
j




L- LU CM LU
-1
Ca L I- 0


1930


1935 1940 1945 1950 1955 1960 1965


42 I I I I I I I I

40 -- -- -1- -n28 - - -
30
28
26 24
22--- -- --- --
47UVAL 122 DEPTH 905 FT. CASED 571 FT. FLORIDAN AQUIFER

45 -
43
41 t!



39




25----------------23

OUVAL. 164 DEPTH 840 FT. CASED 450 FT. FLORIDAN AQUIFER__45

43---33--





33 -- -, -V
31 29 t










25 Water level is affected by tides I 23



MAROL 16 DEPTH 35 FT. CASED 35 FT. FLORIDAN AQUIFER 14
12F











j u l '.!
"fl+444 ~f ffiI j4 "4:




PUTMAM 29 DEPTH 300 FT. FLORIDAN AQUIFER
30

v i_.._, 14 I /


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.






















EXPLANATION
Net change of graund-water
levels In the laoridan aquifer. Contour Interval 2 feel / 69 *123 CLAY /
Observaflon well number .L.

S T JO H N S S //


ego PUTNAM egg ..... MILES t


S FLAGLER


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.


flFPT- 4Q FT CAEFT 43 FT_


FLORIDAN AQUIFER


2
oA VI---,
11
Y_ L




3I
4
5 ,



8 A Iw
IAA

12




14

16



17


18
D------------------------------------------------59 -------------- -- -- -- -


1935 1940 1945 1950 1955 1960 1965


DA~CA ~


I- W


_j J









cr 3 Uj C)








w.4


rn
CI3 Cdi









.4


_1 tL
z

-j
bi
-.4
(r


93
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

j F'AAMJ JASOND JFMAMJA MAMJJASONDJF MAMJJA SONDJ FM A M JJASOND 9601961 1962 1963 1964









10
+6









-2






I, FM AM'J j AS0OD J FMAMJ JAS OND J FMA MJ J ASO NO JFU AMJ J ASONO J FMAMJ J A SOND
616 me 162 63 964


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


= T1 Z-2
1 jg- I ma 169 PO t6 6 3116116
240LI

/00




,60 _ _


00
400





PINE.LLAS 166 I 75 11958 19&59 MO19 16 163941


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 deficiencies in the Lakeland area during years 1961 and 1962.





INFORMATION CIRCULAR-NO. 48


4,000. 3,600-2j400.







400 ."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 Davenport, 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 pr6minent 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 1,961-62. -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-southeastern Highlands County in wells Highlands 10 and Highlands 13, respectively.


at Ch


-





FLORIDA GEOLOGICAL SURVEY


POLK 45







aI

'2 i. J J A S 0 MOJ F M A M J J A S ON O J.F M AMJ J ASONO J FMAMJ J AS OND J FA MMJ J AS 0 ND


Figure 26. Graphs showing trends and fluctuations of water levels in well Polk 45 near Lakeland and departures from monthly normal precipitation 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


Lii zz


L~j ii,














,.,





0
-j
W m
wj





ci: I-


1945


1950 1955 1960


1965


1970


1975


980


of water levels near Lakeland,


+1
o


-2
-3 /



-5 V
-6 -
-7
-8g IIIE-POLK 45 DEPTH 643 FT. CASED 325 FT. FLORIDAN AQUIFER 59 I'1I 60 II 61 -II
62
63 III 64 IIII I 65 IIII I 66: - I ,-I

67 -69 I I 70 I I II 71 - - i
72 - -
70 -- --- - -- - -


74
75-- -- -- --- -76
78
79 ----82-----------------------------84 IUI

85 - - -III 86 ----87-----89 I I- -I POLK 47 DEPTH 67 FT. CASED 60 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 38 I
39 40
41
42
43
4
45 46



49.
50
51
5---


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 (,ONARTESIAN)


3
> LU :3 .Jj











,i.
33








L,




4



4 3






3
z
4
L)














LU U





















-A



3:


0 Il-4
-3 --,vv

-5 i. . ,
-6 -- I-




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





41-
5 -- .


I I

9

I?


13---20
21


24L- I I III +

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



25

26
28

29------ -- -



32 34 -- - -- - - - -
35-----35
374- 1 1 1- -
38 -----------------------------------------------


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 -- ----------- 1 1- 1 1- V
31 ----1-1-1
30



27 -- ---
28l I I! I I I I I I I I1



26 F AA 25 I- I




21 I I! il
20 -- - - --- -



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

74 - 73 - 1 1 i 1 1 I I I I I I
72 -71 - - -- -
70 V - I - - - --I I-I--- r I I - I I I




66 --- - -
OKEECHOBEE 3 DEPTH 22 FT. CASED 19 FT. SHALLOW SAND AQUIFER (NONARTESIAN)



62
61- - - -59 A 60 -------------58 A I
















523
HIHAD 13 LA ll I/ 1 I

























520J J i ii


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.


HIGHLANDS 13


I-- U.
Wj b
_j<
Uj

fn

I>
U<0








-J




UJj
.j l l l. g~ 0


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 fluctuations of ground-water levels in the Floridan aquifer near Orlando are shown in figure 30.


3 a"6 1964


Figure 30. Graphs showing trends and fluctuations of water levels in well 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


+10ORANGE 47 DEPTH 350 FT. CASED 328 FT. FLORIDAN AQUIFER


1 - I
-I-- --- - -I
+7
+! i
+4
.31
+1i


-3 A I
-4 \
-5 i--8 it- 11 U
-9 t I

-II
-15
-13 "- --17
-15 - --16---------------------:- :----

-19 : F
-20 #


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 I9


DEPTH 413 FT.


CASED 80 FT.


I:1 A' l AN AfllIIIFFOI








LU




Um
-4


LUl












U Ul U















>z U4
rU




LU cU U




U 0U LU>)


.LU La1


_LU LU L
Uj C3 0U
> Z


1945


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


3 0 1 N M 29 1 A T II I 28



25 -A 24- \ 23---- -zz

21

19

17

16
15


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

6. 1 1-1 -1 1 -1- .
5 -O II I I I I I I I +4 11 I A


+3" IV



BREVARD 148 DEPTH 206 FT. CASED 105 FT. FLORIDAN AQUIFER II i/ fIII --1-11







If IiII I ill

9 8+I4- ~fI-JUN I

flT1[ HI 1'E IVE





INIREV R 148 DEPTH 206 FT. CASED 105 FT. SHLO ADAUFORA OAUIFER N







27 -- - - - - - --, I - -

6 -- -



ISDIA RUIER 425 DEPTH I8 FT. CASED 13 FT. SHALLOW SAND AQUIFER (NONARTESIAN 28 ,
27
26









NT L IE 42 DEPTH 18 FT CASED 13 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 31 ~ ---
30 -





29 A III 1 IIN I-
26 F

25


21 S 4- --U24-------- -


1950 1955 1960 1965 1970 1975





INFORMATION CIRCULAR NO. 48


Hydrographs of four wells in Brevard County show a longterm 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 economic 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 II

36 -,- --IIII 37-- J &1 A 38 - - - ------3
39 -v - I I I


542 VVW--- --ti- -.I I I
43 -,- -I-- i-- - - -1 v 1111
45'--- -- -- -5 - -II- I - - - - - - -I-I
54 II-- - -


SARASOTA 9 DEPTH 730 FT. CASED 101 FT. FLORIDAN AQUIFER




I3 -" I 1,0!-I I --- --. ,.--2 l I I I I I
-6I No ---o-- -- -- -- -- -- 3 I I I I I I --54



-a I I I I !






-14 1 i l-I- 1 1 1


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


...l









0 .,-


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 fluctuations 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 fluctions in the amounts of rainfall. Figure 36 shows the trends and





FLORIDA GEOLOGICAL SURVEY


196 1961 1962 1963


Figure 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.

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.


6 +4 .2

0







INFORMATION CIRCULAR NO. 48


LU.

LU D
- n








_jo






..J




L> > Z
U





W LU W :>



1U W LU W W .4Cl




4


1950 1955 1960 196 1970 1975 10


1945


LU C' ur-n ZI re. iu r L iMiWIAU PPUMJIFION TNE IAF AL ki A-1
V'r JIA Il I" I


6. .. Ii
4 -:-W" ter I e e is affected I pu m .jnq of ,[w arby w ells J

14 2COLLIER C31 DEPTH 54 FT. CASED 22 FT. TAMIAMI FORMATION (NONARTESIAN) 28


I 1
19 -- - -3l t 1 U I I I 1.II




CoLLE C13 DEPT 14F. CSD2 T AIM WTO NNREIN






7l A


16MARINR C14 DEPTH 74 FT. CASED 73 FT. SADASANDSTONE AQUIFER (NNARTESIAN) 25 -I I k IRV-+7o "1 I im lN I + 7IIfII


+3 I I I I I

+1 5
24------------------l



I------------ -- -l


ic -lil- i 1 1r

1 2 -i ll- ..- 1 -,


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.





FLORIDA GEOLOGICAL SURVEY


0



50
Lb





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 hydrograph 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-month water le vels 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 !0
a
PALM BEACH 88

4 + , , ... ....L. .. .. I . .. 4. L .. .. ... ... , , .
J F M A MJ J A S 0 N 0 J F MA M J J A S ON DJ F MA MJ J AS 0 N DJ F M A M J J A S 0 N 0 J F M A M J J A S 0 N D







FLORIDA GEOLOGICAL SURVEY


flPU17 1Fr dA ='n Im y


rnlI Ir- VhMir' AfIr IrI =1


UA LU>




LU
4L











< LLI U)> LL LLU LU4 LU LAI





LU LI



U)

> LUJ LUl






LU U LULU
'-S





U


4LU LU !a5 3C


1945 1950 1955


1960


1970 1975


DAt hi DFAIU DO


Lr I I II I I I A '




9~ ~ ~ ~ ~ 1 -- - - -- -
7 1 L I 1 1 I IR
6 t I Iir",-1111








5 1 --- .4 I f - I I I








+3 -- -- IV-- .
2-- I1 -I-I-I-I-II- - - I








0-------- - r I- - -
BR(:ARD 6561 DEPTH 20 FT. CASED 20 FT. BISCAYNE AQUIFER










--9
"8
'5 A

*34 - -- -


*1i - -



*BROARD G617 DEPTH 29 FT. CASED 28 FT. BISCAYNE AQUIFER















+9
*7 -1 1h I - - IV I- I - - -
+6 Mill-- "- I
0-- ----- ------------ "- -










5 1 L








+3 1 U '1 +2 1 :1

+9 1ii I 0- -i - -1 1 - - -i
CAD 5 0 DPTH 1 FT. ASED 79 T. B "iCAN AQIRr








































2 1 ----
+10 - - - - - -
+9---------' -- -- -- -- - - -



4.5- - - - --:


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 tROu u -91 uPTH t F-i. BISCAYNE AQUIFER
7
6

5t A1~ A I I 11- A .. .


DADE S18 DEPTH 52 FT. BISCAYNE AQUIFER

8 I:



10
7 I
6 I
5A
3 1 Al h I IA,
2 -11 ~~\ LI Y v

o

+10 DADE S196A DEPTH 20 FT. BISCAYNE AQUIFER +8 -- --
+7 K, I
+6- III-- N $I : I +5 Ill I III i l~ l 1 1 1
+4 -0 -1 1+1

0-I
-2 I
DADE FI79 DEPTH 77 F1 BISCAYNE AQUIFER 76t I I

3 R lM I ilt/
2 I k A A I I I 1 ^ ,1 1



11BROWARD S329 DEPTH 68 FT. BISCAYNE AQUIFER
9 I/II 1
8--- ---------------------I--
6 -- ------------A
3 -2 -- -fu-1----------ll l i
4 i-- - - - --- A lI I I l l

I- - -N r d FI/ l ll/ V -I
0 'TNo re.ord available. 11 "


uuou 1935 194.0 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"

I.
n~
LL

> 0
--LU
W r
-J





48 FLORIDA GEOLOGICAL SURVEY



BROWARD
200 BISCAYNE
-DEPTH r5


4000


3500


2500

2000
BROWARE
__1500 BISCAYNE SDEPTH 119

Lio






800
ZI-- I- DADE F 29E o- 600 --- BISCAYNE A
'-'' i EPTH 47f

,400 -200o


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 observation 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 Homestead in well Dade S 196A. Long-term record of water-level fluctuations at Homestead are shown in figure 40. Figure 42 shows trends of water levels and rainfall recorded at Homestead Experimental Station 1960-62.


+16 t12 +8



+46


1960 1961


1962


1962


1963


1964


FJ64


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.






5G FLORIDA GEOLOGICAL SURVEY

Except for the relatively narrow coastal strip, most of the Miami area is occupied by the Everglades. Fluctuations of groundwater 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 municipal well field of the City of Miami.


AAIW ~Q


flFP'TH 95 FT.


CASED 91 FT.


BISCAYNE AQUIFER


9 [ I I I I I I I I I I I I I 1 I 1 1
+8-- 1 11 111' 11 11 11.11"1I
+! - I -I kWoter level is ofected b'y pumnng offnearbywells
+------- -a tII1 1 1 1 111 1 1- 1i ,H
.5 1 1 t I 11 1 1 I I I
4.4- - - .- 1 l I I
"+ All Wll 1 1111 T 1 I4 N1 H VII, I I i




DADE GIO DEPTH 6 FT CASED 6 FT BISCAYNE AQUIFER


47 1 I-1 L I- -- -- -
46 -1 1 1 1 - - -
5 1 I li il J] 44





'W3


DWDE 672 DEPTH 5 FT. CASED 4 FT. BISCAYNE AQUIFER
t, I I II
T9 AA I II -Ii 9 t .: r~ Z1 DET 95 FT. CA 91 FT J



















8
-I - -
IA -"JDPH,5F. CSD T ICAN.QIE


t940


1945 1950.


855 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 LU LU Cfl .; LUJ >5





LIJ _j




>-LJ o :>


-M LUJ LU 1 I- 0




0> LU LUI Ld Ml




-M LUJ



>5 LU 0
_j ~




L> LU J > LU



I
_j


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 decrease in chloride content of ground Water in many areas.


4


DADE G596 DEPTH 13 FT. CASED II FT. BISCAYNE AQUIFER
+10



+8 A- I +7 I J +9al I I + 6 | -Ifl [ ll +5 IV --I--11+4 -- ,- -
+3
+2 I - - - ---I


-I I I I -DADE G618 DEPTH 20 FT. CASED 11 FEET BISCAYNE AQUIFER +10 +90 -- --- ---- --- - -+8-------- ---- --- -

+6 -----F

+5
+_

0-- --- F----*-- -----




-1


7 DADE G613 DEPTH 21 FT. CASED 18 FT. BISCAYNE AQUIFER I I= I. I II I 1
+5 - A I 1 1 a +4 -,-- r-- l
+3 - I 1 -11-+2 - ---- -- I I
+1 I I

0I - - - - -

-2


DADE G620 DEI TH 16 FT. CASED 6 FT BISCAYNE AQUIFER9


7-
6




2
04-- -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












APPENDIX



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











Table 1.--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, semiannually; 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 gate 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


rWater level above (+) or below (-) land surface
r_ 4 M (feet)
r Prior to 1961 Highest water lMxim
0 0 r_ r, levels May rag a-= = - May or June range
0.0 o.u s us w Nigh Lw W- : (a (year) 1961 1962 1961 1962
0 I (year)(ea)16F


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
N 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 Al --- l Q#I R ----


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







Water level above (+) or below (-) land surface (feet)i
W 0 el Prior to 1961 Highest water Maxm Remarks V May- or'June lvlii A range S .Xe C -U C Hi Low 19 Z ,v =" ,,,..-' s..- (year) (year) 1961 1962 1961 2



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


ooo-zlo-z




19 (305-045-1) 20 (795-043-2) 79 (347-051-I)


L.3 (321-0435-1) L39 (a34-039-1) 759-045-1 307-039-2


S1.4-048-2 3Z2-046-7 8M2-047-2





2-91


G561


G616~


0,61.7


G820


C853


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


-73.96 1.86 2.11


3L DFORD COUNTY
F 294 247 1959 B ----- ---- -70.84


BEEVARD COUNTY

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

F 4.7 125 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









M; Prospect well field H; 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


$329


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


+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








N


M


M; Naples well field

B


8 1951


22 1952 20 1958


--- 1959


--- 1959


+1.5 1.5 1.3 M


: 1 Water level above (+) or below (-) land surface

Prio (feet)Wel n be o o w Prior to 1961 Highest water
Well number 44 44 .0 u axmu S.e to 196 HihC:atr M~ Remarks or n level in May range ,4~~~~~S a= J May or-ue-rae

0.. s High Low .g 1961 1962 1961 1962 P4 t year) (year)I








water -level above (+) orbelow ()land surface


Welt mmer P.. ?rIor to 1961 Hihest water mxm- eak a level In Slay Irls x -" 0. o. n us6 Ih 0rli16 n' a year) I(year) 1961191 96


P358 G3


(GIO C39 G72


C476 4553 a580 G395 4596 G605


G614 G613 G619 G620 G757 G789 G799 G850 G851 4852


4855 C857

4858


DADE COUNY--Continued

4 --- 1940 C +6.7 -0.8 ---- +0.4 ---- 5.8 1
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 195a 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 1938 1945

.4 19 1947 C +5.5 +0.4 +2.1 +1.2 1.6 1.7 H 1958 195056

* 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 X 1960 1960

4 11 1949 C +8.5 +1.3 +2.3 +1.0 4.1 5.5 H; P 1958 1960

13 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 X 1954&58 1956

20 18 1953 C +8.2 +0.9 +3.9 +1.0 3.9 6.2 M 1958 1956

20 11 1950 C +8.4 +3.7 +6.5 +3.9 ).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 M 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 4.1 +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 ---...............1 .... 5.0 B


19 15 +3 +18 +3.5 +1.3 2.6 3.0 H 191 1960
20 11 1959 C +6.3 44.2 +5.1 +1.9 4.5 6.9 M 1960 1959








.Water level above ()or below (-) land surface
-a -am (feet) Wl nmea Prior to 1961 Highest Water Mau e W ell num ber 0 0 o 0 A eo a ng em R m a k
o a N level in ay range 4e m 4j 0 0 a High LowI W a 1962 1961 1962 ] 5. ( y 1962


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 N; 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 N +4.7 +2.7 3.6 3.6 N +5.4 +4.2 5.1 4.4 M +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 N; 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 N

--- M; R, Oct. 1962

-N-- -; Do

-N- M; 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 S18


868









o Water level above ()or beio, (- liind surface a (feet) j. n b s rior to1961 Highest water Max = Remark welt 0mbet ay orJune level in May range

DC 3, 0 C rHigh LOW ~ A~ e~ (year) (year) 1961 16 91 16


MMDE COUtY--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 M


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-I) 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


--- 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 196A


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-I) 129 (015-141-1) 145 (028-137-1) 149 (024-136-1) 151 (023-139-1) 152 (027-133-1) 154, (013-135-I)


1








-WWater level above ()or below (-) land surface Pr i (feet) a so Prior to 1961- Highest water Maximum Remarks Well number a Hh o level in May range

~.:~. s:~e High Low
(4.,e r) 1961 1962 1961 1962 a U e (year) (e


DU1/AL 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


ESCA4BIA COUNTY

--- 1940 M -4.59 -12.00 -7.89 1940 1955 152 1940 C -69.30 -111.82 -1G3.27 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 C 65 60* 1959 W C 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 1.63


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









water level above (+) or below () lend surface
~ to1961 (feet)

3-. Prior H r igest water 96lvl 2 May. n *~ igh ILOW 1961 192161 1962 a'-a- ~ (ea) (year)


FRANIU gI COUITY

-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

957-43-1




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 COITY

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


HAMILTON COUNTY

F 273 60 1961 B .... ....


HADER COUNTY

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


-33.60


---- 8.88


BENDT COUNTY

+19.5 +14.3 +18.0 1958 1956

-3.5 -6.3 -5.0
1952 1956


HERNANDO COUNTY F 140 --- -1961 B ........


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


'ell number


-101.78 0.87 11.04


1941 *0.
*C

1941 C


+14.2 4.7


-6.2 2.8


K; *D, 1941-44;
*C, 1950B


838-215-1




P


10 11. 13








to Water level above (+) or below (-) land surface
e4 9: 44 (feet)
B U bs r
W nubrPrior to 1961 Highest water M Remarks 044 0 r a orJue level in My range


Q 1 9 6.C (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 1916 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(-) orbelow -(-)lend ,urfa ce


~oPrior to 1961 Highest-te axe Li rUlevel n ay" Remarks
- May or 'June rnge Uyar 1961 F1962 1961-116


022-356-1


038-336-1





0-38-317-1 953-312-1




13 (857-L33-1) 20 (900-123-1) 22 (909-131-1) 822-149-L 322-149-2 332-154-1


332-154-2 841-156-1




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 COUNT 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 R 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 H; 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








Wate le e v- or below (-):land surface Well number .% ... Prior. to 1961 Highest water Maaimum
" May or "June level i May range


0 us 0 i g h (year)- 1961 1962 1961 1962


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 -,7 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 poinL 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








Water level above (+) or below (-)land surface ~ o~ (feet) t I Prior to 1961 Hfighest vater a xiamk
a0 g vleverinMy range S+" : : a High L ow 1961(ea) 1962 1961 1962 d- lif q (year) 1 961ar


31


74 11


15







580


680 640





1.000


569


580 540


350 1939


--- 1939


--- 1939


--- 1939


450 1934


--- 1940


--- 1940


504 1940


609 456 591 422 766 524 640 527


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 +4,1.1 +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 1947Wo8 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) 4. (037-136-1) 30 (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)







Water level above (+) or below (-) land surface o -: I" ", (feet) Wel ncbe Prior-to 1961 Highest water. MaRemark
Wellnumb~r U aRemarks
0 0 m lee n ay range
.0 .- a o., m Nay orJune leele
Sn.m P, W s igh Low
,-. 1961L1962 9 16 (year) I (year) 196 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 9 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 p1 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










Water level above (+) or below (-Yiand surfer "r. ,,. (feet) = .. Mei ajn1e t Prior to 1961 highest water Maimumk Well number U Remarksse
-y or June .level in Ma7 range ) (e 196g216 a-,, ,--- s (year) (year) 96


3 (315-226-1) 326-21i-t





13 (808-245 -1)





W0 (Su3-246-L) 166 (803-247-1) 246 (738-247-1) 361(750-240-1) 663 (738-244-4) 667 (754-243-1)





!Z '10-136-1) 43 (739-158-1) 47 (310-136-2)


48 (732-31-1) 49 (748-119-1) 3-1 (744-131-1)



733-158-311 8Z02-132-1 805-155-2 805-155-3 806-156-1


-8.92 3.17 4.41


-22.14 6.98 6.05


PASCO COUNTi 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 14t 33 1947 C -8.29 -10.70 -8.89 1948 1950 F 282 --- 1947 C -64.41 -68.01 -65.70 1959&60 1949 F 230 25 1947 B -26.55 -27.57 -28.11 1959 1960 F 193 --- 1943 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 81 1954 C -20.12 -24.55 -21.60 1959 1955 F 843 --- 1954 C -53.32 -56.68 -54.49 1959 1953


FOLK 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 1943 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 195R 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 -3.69 -7.82 -6.09 1959 1956


N 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



-29.66


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 1 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









-ater-level above (+) or-below (-) land surface
a. (feet) a ,U U.+ o -4
:.. Prior to 1961- Highest water V LiAaka
Wel nube S-.4 Remarks
Well mb M .o. level in May range
a May or'June.
An *o a a 40 waHih
-1- (a I e 1961- 1962 1961 1962


28 (925-138-1)


29 (939-138-1) 937-153-1


939-134-11


943-152-1





5 (007-13-1) 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 8 170 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 +4.72 +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 i956 +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





M


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










Water level above (+) or belowv(-) land surface e Prior to 1961 Highest water m ium Rmark
Wel umer %. Rmr
leve 0 ~ range

a 0 igh 1961 1962 19"61 1962 n'- i (year) (year)


SARASOTA COUNTY

5 (719-225-1) 7 730 101 1930 C +4.51 -5.60 -6.00 1931 1956


SEMIHOLE 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


SUMMER COUNTY 852-201-1 F 125 45 1961 B .... .... ....


SUWANNn 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
19376,38 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 (911-15-1) 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








r :Water level above ()or below--(-) land surface .. r. 44 w (feet) Well number -a 0. Prior to 1961 Highest water Maxhibm Remrks
0 0 =- May +or -un level in May range oa -a 5 0 I
0 0.0 0. U gHigh 1 Low "
o 144 ( 1961 1962 1961 1962
0 (ear)




WAKULLA COUNTY

2 (009-412,-l) 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

0 0 5 4 1 7 1 F 8 7 - 1 9 6 1 B -. . . . . 2 4 3 2 3 6 2 0 3

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-I F 160 --- 1961 B-----.... +20.5 0.9 1.0

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


WABHUGTON 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

PAGE 1

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

PAGE 2

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

PAGE 3

CONTENTS Page Introduction ................................. ........... ...... .1 Well-numbering system .......................................... 4 Principal aquifers .............................................. 5 Northwestern Florida .................. ........................ .8 Pensacola area............................................... 8 Ft. Walton area ......... ................... .............. 11 Panama City area............................................... 15 Northern and North-Central Florida ............................... 15 Tallahassee area ............................................. 15 Fernandina-Jacksonville area .................................. 20 Central Florida ................................................ 21 Tampa-St.. Petersburg area .................................... 26 Lakeland area .............................................. 29 Orlando area.................................. ................ 36 Cape Kennedy area ........................................... .37 Sarasota-Bradenton area ...................................... 39 Southern Florida ............................................... 39 Ft. Myers area ........................................ ..... .40 Stuart-West Palm Beach area .................................. 42 Ft. Lauderdale area ......................................... 44 Miami area .................................................. 49 Appendix ................................................... ... 53 ILLUSTRATIONS Figure Page 1 Map showing observation-well network, December 1962, and the extent of principal aquifers and sources of ground-water supplies in Florida ..................................... 3 2 Diagram of explanation of well-numbering system ............ 6 3 Map showing piezometric surface and areas of flow of the. Floridan aquifer, in Florida, July 6-17, 1961 ............... .7 4 Map showing locations of observation wells in northwestern Florida for which hydrographs are given ..................... 8 5 Graph showing total yearly pumpage, City of Pensacola, F lorida ............................................... .9 6 Hydrographs showing trends and fluctuations of water levels in wells Escambia 45, 46, and 62, Pensacola area .......... 10 7 Graphs showing trends and fluctuations of ground-water levels in well Escambia 62 and departures from monthly normal precipitation at Pensacola, 1960-62 ....................... 11 8 Hydrographs showing trends and fluctuations of water levels in wells Okaloosa 3, 25, and 31, Ft. Walton Beach area....... 12 iii

PAGE 4

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 Jacksonville 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 precipitation 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 iv

PAGE 5

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 Everglades, 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 precipitation 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 northwest 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

PAGE 6

ERRATA Florida Geological Survey Information Circular 48 "Water levels in artesian and nonartesian aquifers of Florida, 1961-62" Pave iv -Figure 21 -Ehren not Ehrin Page 5 -Paragraph 3, line 5, Broward not Brevard Page 11 -Paragraph 1, line 4, 10 million not 100 million Page 11 -Paragraph 2, line 3, 98 feet not 58 feet Page 11 -Paragraph 2, line 12 (p. 17) not (p. 19) Page 15 -Paragraph 4, line 7, 77 feet not 76 feet Page 20 -Paragraph 2, line 6, 1945-62 not 1946-62 Page 20 -Paragraph 6, line 4, 15 feet not 16 feet Page 20 -Paragraph 6, line 6, 13 feet not 14 feet Page 25 -Figure 19: Left figure: May 1951-May 1960 Right figure: May 1960-May 1962 Page 27 -Paragraph 1, line 4, Ehren not Ehrin Page 30 -Paragraph 1, line 3, 65000 million gallons Page 31 -Paragraph 3, line 9, Highlands 13 (fig. 29) Page 37 -Paragraph 1, line 4, maximum fluctuation of about 22 feet Page 39 -Paragraph 1, line 1, three not four Page 39 -Paragraph 4, line 3: 0.3 foot Page 39 -Paragraph 5, line 3: shown on page 41 Page 49 -Paragraph 3, line 3, at Redland .' :I

PAGE 7

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 observation 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 cooperation with the Florida Geological Survey includes the location, aquifer, and type and period of records available for 3,629 observation wells. Since World War II, and particularly during the last decade, the demand for fresh water for industrial, municipal, and agricultural 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 increased. 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

PAGE 8

2 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 detrimentally 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 demonstrate the interplay of those forces in the ground-water environment 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 waterresources investigations. The hydrologic data-collection program of the U.S. Geological Survey is part of the cooperative investigations of the groundwater resources of Florida, in cooperation with the Florida Geological Survey and other state and local agencies and municipalities. 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 measurements taken from automatic water-stage recorder charts, pressure gages, and those made by wet tape. In general, water-level measurements made by tape and stage recorder are shown to the nearest 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 availafle for these months for a large percentage of the wells. Also, ground-water levels generally 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.

PAGE 9

INFORMATION CIRCULAR NO. 48 3 I " 1 86" S4 1 83* 3 I 1. cvl ./° 30. Observation welanumber E. Flo idan\ / . i'dicates number of wells ^>? / t~j-.,.% t l?'.*.^ Sond-ond-grovel ." " *t* .. ./7, SFlorido n "" -",'i / -27 Floridon and/or others : l. '' ,,^ / #'p * * /.' * » *'l " a, B liscayne " . -Approximate oquifer boundary ; ' -7* * " i -28_ So' -q*/*, ..'-. 0 50v040Mo25u -----, I__ , " -I 84N 83* 82* 88* _ 0 aBo tilon trom 1933 edilion of ap of Fiorida by US. Gologlicat Surey Figure 1. Map showing observation-well network, December 1962, and the extent of principal aquifers and sources of ground-water supplies in Florida.

PAGE 10

4 FLORIDA GEOLOGICAL SURVEY The hydrologic data program consists of the collection, tabulation, interpretation, evaluation, and publication of waterlevel and related data. Water levels for selected wells are published, 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. Observation 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 renumbered 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

PAGE 11

INFORMATION CIRCULAR NO. 48 5 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 municipal 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 northwestern 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 irrigation. 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 usefulness of the Biscayne aquifer is sharply restricted in areas adjacent 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 extends 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,

PAGE 12

6 FLORIDA GEOLOGICAL SURVEY I1 i L Volusia Coa 29000' ILokake C. --\ 28o301 --JI Orange Co. 24L Osceolo Co. S,, 2800 ' 81030' 81'00d 28*25' 8110" 80055' 28037' 36' 35' 28*34' 8;108' 07' 06' 5' 81o04' 835 -. 105"-Figure 2. Diagram of explanation of well-numbering system. northeastern, and north-central Florida; (3) central Florida; and, (4) southern and southeastern coastal Florida.

PAGE 13

INFORMATIONe CIRCULAR NO. 48 7 87* 86" 85° 84' 83" ,Vto 31' •29 -t 267' 'EXPLANATION tq Contour represents thie Iight, in feet arefred to men sea , level, to which woare would have risen in tightly casied Swells that penetrate the majorw wotr-bIaring foamianst« in the Floridam aquifer, July 6-17, 1961. Contour interval 10 and 20 feet, changing oat mean so leveIl. y 25* a Areaof onreio flow Extent and distrlbution of flow areas vary with fluctuatians of the plezMortric surfac, particularly in areas of heay nt5 pumping. Relatively small areas of artesiman flow are not -41included imwediaely djoerinfe to and paromllling th ' coast and any of the moalor rivers and springs. i 0 10 20 30 40 50 miles S Token from Map Series No.4 by H.G. Haly, 196).' S .84° 83 " .82°" 81° 80° Figure 3. Map showing piezometric surface and areas of flow of the Floridan aquifer, in Florida, July 6-17, 1961.

PAGE 14

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. L A B A M . I. --.-T -.--------/ r H O L M E S --, AC K S O N 0 *1 -SaTA ROsA OKALOOSA *"31 A L T O N / * WASHINGTON ' GULF OF MEXI CO Figure 4. Map showing locations of observation wells in northwestern Florida for which hydrographs are given. The principal sources of ground water supply in the section are the sand-and-gravel aquifer in Escambia and Santa Rosa counties 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 counties. 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.

PAGE 15

INFORMATION CIRCULAR NO. 48 9 Iooo -00 Figure 5. Graph showing total yearly pumpage, City of Pensacola, 3,000 Florida. The observation-well program in the Pensacola area began Florida. 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 presents data on 13 wells in Escambia County. Figure 6 shows fluctuations 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-andgravel 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 194062. 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-

PAGE 16

10 FLORIDA GEOLOGICAL SURVEY ESCAMIBA 45 DEPTH 152 FT. CASED 152 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN) 70 ---------72 tf ^-i--------------------------zaGt-------------------------------74 z 98 -l-------------------------76 go .8100 -104-----------------------------aIO9------------^-----------------------rom S108 lID0------------------------------1102------__--------------------------------------------------114 -Water level is affected by pumping of nearby wells 1 16 ESCAM1A 46 DEPTH 239 FT. CASED 239 FT. SAND-AND-GRAVEL AQUIFER (ARTESIAN) D60 -----56| ------------------\--------------------------------664 ' 70 -----------------'a4^ -----------------r-------------0 6676 § 6a------------------\---.----------'52---------------------------p ----7-----------_s ----------------------D 58 ----------------------------------------^------------------__ ^ 12-------------------------------1486---------------------------___ 82 -' 16 --------------------1-IIIIIII-----__a g--------------_ _ _ _ _ -[ Uu8687 'la I 16 W la82 V| v -S2 940 1945 ---1950 1955 190 1965 1970 197 wells Escambia 45, 46, and 62, Pensacola area. SCA940 D945 195 C 1955 1960 1965 1970 1975(ARTESIAN) 190 t95 190 195 160 165 170 17 Fiue6 yrgapssoigted adfutain O ae eesi wel saba4,4,an 2 escl ra

PAGE 17

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. JFMAMJJASONDJ FMAMJ JASONDJFMUMJJA SONDJFJMAJJASOJNDJFUAMJ J ASO ND 1960 1961 1962 1963 1964 JFMAMJJAS ONDIJ MAMJJASODJFMA MJJaSONDJ F tAM JJAS oNDJF MMJJA ND 1960 1961 1962 1963 1964 Figure 7. Graphs showing trends and fluctuations of ground-water levels in well Escambia 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 Washington, about 30 miles east of Ft. Walton Beach, shows the trend of decline in water levels during 1947-62 (p. 19).

PAGE 18

12 FLORIDA GEOLOGICAL SURVEY OKALOOSA 3 DEPTH 800 FT. CASED 08 FT. FLORIDAN .AQUIFER +24 -4 W" " | | | | I I I I I 4 -1 --il 11 11 1 ,,, S.162--------JL-------------------------Z68 ----------------^ -----------------iL-'-a1 7 ---------------------t Wate level is affected by regional pumping 4 8-I I I I I I I I I I I _ _ _ _ _ _ 84 wells Okaloosa 3, 25, and 31, Ft. Walton Beach area. 64 :>< 68 :!r 84 lt level isaffected by regional pumping 1945 &W 1955 1960 1965 1970 1975 1980 Fi-ure 8. Hydrographs showing trends and fluctuations of water levels in wells Okaloosa 3, 25, and 31, Ft. Walton Beach area.

PAGE 19

A L A B A M A r--F ,--L 0 IR I DA ?ESCAMBIA , SANTA ROSA OKALOOSA WALTON ' A Net change of ground-water levels in the Floridan aquifer I .---12 Not change of ground-water levels n' the sand-andgravel aquifer 5 0 asI J 4 Observation well number 23 PENSAOLAC 4 02 20 E0 0 40 0 27 < SCALE MILES Figure 9, Map showing net change of ground-water levels, Pensaoola and Ft. Walton area, May 1951 to May 1960.

PAGE 20

A L A B A M A F L 0 1 R I A ESCAMBIA SANTA ROSA OKALOOSA WALTON ( I I | (X, PENSACa.A ci 0 5 10 20 30 40 SCALE MILES Figure 10. Map showing net change of ground-water levels, Pensacola and Ft. Walton areas, May 1960 to May 1962.

PAGE 21

INFORMATION CIRCULAR NO. 48 15 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, nonartesian, 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.

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" --.I I. ""I .., , , ., 1,400 (I 1,300 o 0 J 0 1 .1100 Figure 11. Graph showing total yearly pumpage, Panama City, Florida.

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INFORMATION CIRCULAR NO. 48 17 WALTON 13 DEPTH 450 FT. FLORIDAN AQUIFER 26 24 iu 22 < 20 -W S4----12 Of 8 --I1-J I I r ---------w,> 10 6 < Water level is affected by regional pumping 6 -I I I I I I I I I I I I I BAY 7 DEPTH 253 FT. FLORIDAN AQUIFER 36 38 38 6-------------------------40---------------42 42 -----------------------------------44 46 48 IV-, 50-S52 -54 .56 -58 S60 S62 e64 -----6 66 z 68 -70 8J74 S76---------78 80 ~84------------I-----------------82 84 86 88 Water level is affected by pumping of nearby wells 90 " -! 1 9zb I I I±I± IIL IzILI I i I WASHINGTON 4 DEPTH 785 FT. FLORIDAN AQUIFER o S4 ---6 < 18 0 10 I" Ii S2---------------------^-----------------, 22 S 24 1 26 S28 26 --J------1945 1950 1955 1960 1965 1970 1975 1980 Figure 12. Hydrographs showing trends and fluctuations of water levels in wells Walton 13 at Point Washington, Bay 7 at Panama C.ity, and Washington 4 at Caryville.

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ALA SE O R G I A -1, N A 8 8 A U ' L E 0 N MA D I 0 N H A M I N u " JE FE SONn t , / 164 /nLIBERTY I.a F.ori--a--ow.c h d o/ jau r i I J-' A MULL A SUWNE N I 01 I SW *T ANN COLUMBIA I r-A LAFAVE;TT\^ U N 1 0 NC L A Y C6 ST. OH N GULF OF MEXICO M ' --.. .--.d.1. FLAGLER L E V Y L, Figure 138. Map showing lboations of observation wells in northern and north-central Florida for which hydrographs are given.

PAGE 25

3,00. 3,Z 00-~ ___________ SIt 0 0 0 o __ ___ _ _____ 5 SO IO_____ 00 o! o2 0 20 0 g z -0 Figure 14. Graph showing total yearly pumpage, City of Tallahassee, Florida.

PAGE 26

20 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 Tallahassee 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 industrialized 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 seasonal 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. However, 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 about 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 groundwater levels in several counties.

PAGE 27

INFORMATION CIRCULAR NO. 48 21 165 5 156V" " " LEON z '" ----" I-----1-60 -62 JFMAMJ JASONDJ FMAMJ JASONDJ FMAMJ JASONDJFMAMJ JASONDJFMAMJ JA SOND 1960 1961 1962 1963 1964 S I Normol monthly M2 I r c -4-JFMAMJ JASOND FMAMJ J ASONDIJ FMAMJ JAS ONDJFMAMJJ ASOND'JFMAMJ JASOND 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 observation wells for which hydrographs are given are shown in figure 20. The principal source of ground-water supply in western coastal 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.

PAGE 28

22 FLORIDA GEOLOGICAL SURVEY LEON 7 DEPTH 314 FT. CASED 165 FT. FLORIDAN AQUIFER 149 t 52 _' 155 S158 L161 >z 164 < d i ' -Water level is affected by pumping of nearby wells 1776 -: I II I I I I I I I I I I 1 MADISON 18 DEPTH 322 FT. CASED 307 FT. FLORIDAN AQUIFER 4-1-2_ 35 ---_-----q-----------I------26 4 94 !02 COLSSAUIA 9 DEPTH 640 FT. CASED 680 FLORIDAN AQUIFER gg^ _ _-----»----i^ -^ ^--* ---M -----69-----------275>21-------------------------------------------------------------24 ---L iI \ !0515 9-3-NAS0 195 D96 66 F F-A -----.27 -12 .-93-^ 96 SSColum 12 neDE FeLORIDAN AQUIFR id -2-4 -U -27 . z -15 ---------------J.^ c -_ ------------«rte o _ _ _ _ _ _ .-------^ ------------------19 4 _ _ _ __ _ _ __ _V 1-6-------------Columbia 9 at Lake City, and Nassau 12 near Fernandina, Florida.

PAGE 29

14,00 12,000 _________________________ (zLzn 9 -J I 20,00 0// /2, 0 2... _______ §_Z Figure 17. Graph showing total yearly pumpage, City of Jacksonville, Wo Florida.

PAGE 30

24 FLORIDA GEOLOGICAL SURVEY SNSSAU 51 DEPTH 580 FT. FLORIDAN AQUIFER 42 4 ---38--------------------------34-S------32 5 32------------------^--=L--------1 30 W 28 326 24 22--------------------------DUVAL 122 DEPTH 905 FT. CASED 571 FT. FLORIDAN AQUIFER 45 S43 4 -------------------_--__---LU ) > ,z 35 -? 33 25 -----25-7 --------------------------^ ---23-----------------23 -I 1 II I I I II I I UV AL 164 DEPTH 840 FT. CASED 450 FT. FLORIDAN AQUIFER 43 LU!Z 4 33 -------------------27 > l \I. 5 DEPTH 135 FT. CASED 135 FT. FLORIDAN AQUIFER u8 t,__-_ _ .LVvi_ Z T 1 2 S14 -g 32-f-----------Z-__ ___ __ 1930 1935 940 1945 1950 1955 1960 1965 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. U. 10 UTNAM 29 DEPTH 300 FT. -I AQUFE R---4llo2:::^:::::::^-^^ ^ ;^::::^^::: W ^ 2 -_ _-_ near Mayport, Marion 5 near Ocala, and Putnam 29 at Palatka, Florida.

PAGE 31

N NASSAU 1 NASS U . / * DUA ," DU AL .so * *' Nt h f ,,und. e .14 CLA Y * L A Y / / b SKSONVILI D I--4o O R .0.i IN o EXPLANATION 2 -LL --A ,.e ,,, \ Figure 19. Maps sh g et change of ground-waterr l i th levelJacksonv In heFa loriaan aquftr. 1 1 to M 1 0 t M 1 I0)' \Contour Inervol 2 fI ll I / ) S CLAY C AY // Observation well number 021 I SST JOHNS ST JOHNS V/e /\\SCALE 0 0-/ i V s PUTNAM ego ]fiMILeS IJB PUTNAM *g 0 SFLAGLER n -o FLAGLER ego I14 ego \*H Figure 19. Maps showing net change of ground-water levels in the w Jacksonville and Fernandina areas, May 1951 to May 1960 to May 1962.

PAGE 32

2 FLORIDA GEOLOGICAL SURVEY LS I J VOL U S I A< S" --.--i _ -! ......440 \\ N a I LLLSSOROUH 6 O 0S C EO L A -----: ......---, \45 ' 1 3 n.-) _.P 0 L K . 392, i ,._ [ o ,, 4 -! \0 LNi E SIDI AN RIVER A DaTEEEE i 0 K C O ! .S T LUCIE__ _ •L .S DSOTI I i E S OT 0 |," S A I NAS 0 T. A l---i! , _ -,--J ______.___ n__ Figure 20. Map showing locations of observation wells in central Florida for which hydrographs are given. Central Florida includes four rapidly growing centers of population 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. Petersburg, 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 observation wells in the Floridan aquifer.

PAGE 33

INFORMATION CIRCULAR NO. 48 27 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. PASCO 13 DEPTH 49 FT. CASED 43 FT. FLORIDAN AQUIFER I 4 0 ---------------------------------------_-2----------------------------------"' 6 8o 3 7 -l As, Vv4V---,cr 8 =U IO ----.l--------V --------------II 129 HILLSBOROUGH 13 DEPTH 347 FT. CASED 46 FT. FLORIDAN AQUIFER 0--------------------.-------------------j2-------------------------------------------------------------, 3 § 4-------_-----------------------------------------------------C, 4------------------------~------7------, 13 -----------------------------------LLI .,,-1o V"--i----I_z -12 113 L 151 _ 130 1935 1940 1945 1950 1955 1960 1965 213-.--------.>1----------__---------------------------------'1---------------------------------* I--------------,-------------------19---------------------------------------1930 1935 1940 1945 1950 1955 1960 1965 Figure 21. Hydrographs showing trends and fluctuations of water levels in wells Pasco 13 near Ehrin and Hillsborough 13 near Citrus Park, Tampa area.

PAGE 34

28 FLORIDA GEOLOGICAL SURVEY .\ HILLSaOROUGH 13 FMaIJJASONDJFMAMJJASONCJFMAMJJASONDJFMAMJJASONDJFMAMJJASOND 0 14 jF F'AAMJ J$A SONDIJ F MA MJ J A SOND J FMAMJ JiASO N D JF MAMJ JA SON D J FM A M J J A S O N D 960 1961 1962 1963 1964 1 = ~ I 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 |, FI MAM J j A S 0 ND! j FF MAM. J J A'S 0 N DIJ F M A M J J A S 0 N'D! J F .A M J J A'SON OIJ F M' M J J A S O'N'D 960 196m 19 t%63 1964 Figure 22Graphs 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

PAGE 35

INFORMATION CIRCULAR NO. 48 29 HILLSBOROUGH 30 DEPTH 500 FT. CASED 97 FT. FLORIDAN AQUIFER 14 13 ----12 I I .J U, 1 oz 9 9-----------.JCn 8 --7u 1--------------------------------3---0---------------------------------0i PINELLAS 13 --DEPTH 141_FT. CASED 33 FT. FLORIDAN AQUIFER 5 6 ^_j6 ---------------------5J INELLAS 24 DEPTH 141 FT. CAE _3 FT. FOIA AQUIFER 3 Water level is affected by tides 20PINELLAS 246 DEPTH 208 FT. FLORIDAN AQUIFER ^ 22 -(n 24 wl P IWater level is affected by tides 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 chlorie eri content in both wells decreased during 1957-61. During 1962 the chloride in well 592 increased nearly to the 1959 concentration. In contrast, the chloride in well 166 remained low during 1962 and at the end of the year was well below the 1959 concentration. rakeland Area In the Lakeland area, like oiners in Florida, ground water is being pumped at an increasing rate, commensurate with the is being pumped at an increasing rate, commensurate with the

PAGE 36

30 FLORIDA GEOLOGICAL SURVEY 2DO S00 000 1200 _____________ 1 400 a __________ _________ _________ ELAS 592 I P1ELLAS 166 19 i MW t659 960i 1961 I 962 1963 1 B1964 1 P 5 195 I s5 1960 1 61 1962 1963 1964 11965 Figure 24Graphs 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 deficiencies in the Lakeland area during years 1961 and 1962.

PAGE 37

INFORMATION CIRCULAR NO. 48 31 4,200. 3400. 0 30 0 ____ ____ ______ --------------------------/ C 2t400 ( .24 0Q 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 Davenport, 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 southeastern Highlands County in wells Highlands 10 and Highlands 13, respectively. L._ ___0 __ 1^ 3,respectively.

PAGE 38

32 FLORIDA GEOLOGICAL SURVEY 190 T961 1962 1963 t964 64 r POLK 45 z M i 0t cipitation at Lakeland, 1960-62. ___ I. _J J _ J _ S ._ _DJ F SM a»JOJ 5JJ SO N OJ FM AMJ J S OND J FMAMJJ AS OND J F MAM JASO NO in the shallow-sand aquifer was about 10 feet during the 1955-56 'A T re -j d te 1961 62 n p o t wel Polk 45 near Lakeland and departures from monthly normal precipitation at Lakeland, 1960-62. and the 1961-62 droughts. In the southeastern part of the county, in lower Kissimmee Valley, nonartesians 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

PAGE 39

INFORMATION CIRCULAR NO. 48 33 POLK 44 DEPTH 195 FT. CASED 81 FT. FLORIDAN AQUIFER +2 Lii1f -JI*UU7t~.... ---------------:m -6 LI3 -5 ----_ _ ----_ zi 0 l-7 -8 POLK 45 DEPTH 643 FT. CASED 325 FT. FLORIDAN AQUIFER 58 59 60 61 62 eo6------------------------------------------------------------CA68 -----------------------------63 65 -0 70 z-69 ---I-----6457j r'T ----~--------.-----------0 -w 72 672-----------------^ ------------------.73 W 74 75----S80 ------------------------------------76 81 ----82----------------------------83-------------------------------------1---------------84 86 S85------------------------------------F-------------87---86 ------------------------------88-89-1 POLK 47 DEPTH 67 FT. CASED 60 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 38 39 40 .39---------------------------------------40--------------------------------------------iw 41 w 42----------mi 43 -z 44 i 46 -.48 --i 51 521945 1950 1955 1960 1965 1970 1975 1980 Figure 27. Hydrographs showing trends and fluctuations of water levels in wells Polk 44 and 47 near Davenport and Polk 45 near Lakeland, Lakeland area.

PAGE 40

34 FLORIDA GEOLOGICAL SURVEY POLK 49 DEPTH 17 FT. CASED 14 FT. SHALLOW SAND AQUIFER (NONARTESIAN) = -I3 ---4 5 L 2 -7 i0 U.-7--------------------------------POLK 51 DEPTH 319 FT. CASED 208 FT. HAWTHORN FORMATION (ARTESIAN) 4 -_-_----------------------------L 4 5------------_-_----------------------SL -------_____ __ o 6-------------------------------------------j----------------^ 7-----------------p---------------------------------------------£,3 I -. 3 27 21 29 S13 t4 w ^-----------_-----------_ . 2 4I5 i1.I0 I 6 6 I .191 1980 Fi-ure 2 8 yro r p oig ~~ and --------1 1 l 2 16-----------24------------------------------27 9 2 --/---------------------------T 9-----------------------------------«« 24 ..........................---_ -_ _ ------_ i21----------------------»--.-------------------2z--------------1-----S-----^---------_------HIGHLANDS 10 DEPTH 45 FT. CASED 41 FT. SHALLOW SAND AQUIFER (NONARTESIAN) Z 26-------------------------_r 27------------------_-----------------------------------_--2 , S 28-------------------------------------------------------------^ 237--------------------------_--£ 38--------------------------------------------------t32 z 34 ----------------------------36--------------------------------------------> 39----------401 1 I 1 1 1 1 1+ 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.

PAGE 41

INFORMATION CIRCULAR NO. 48 35 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. HIGHLANDS 13 DEPTH 20 FT. CASED 16 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 32 30---------31 ---------------------------L-----L ----------D2--------------------------------------^-----------------. 29---jjI w28 J 27 Uj 26 2 250 19 24 -----------3 22-----l---l----I I ---I I I----1 ------------------------OSCEOLA 183 DEPTH 27 FT. CASED 22 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 276 i I 1 i I I -1 75--------, 74 -"-i---------70 w69 68 6^69-----------------4-----M-M------------, 8 1 1 1 1 4--I I 4 I------I---------OKEECHOBEE 3 DEPTH 22 FT. CASED 19 FT. SHALLOW SAND AQUIFER (NONARTESIAN) 76 2J 75 S7158 64y ---t-------\------------------------r £563------------------------------------61,-, ----"-------.< 70r 6 54 53 53-----L------_-------1945 1950 1955 1960 1965 1970 1975 980 Figure 29. Hydrographs showing trends and fluctuations of water levels in wells Highlands 13, Osceola 183, and Okeechobee 3 in the Kissimmee Valley.

PAGE 42

36 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 fluctuations of ground-water levels in the Floridan aquifer near Orlando are shown in figure 30. I \ 11 \ 1 -a -ao i twa -S -46 JF AMJJ A S0 OMDJ FMAMJ JASoN JFMAMJ JA S ONDJ FPMAUJ J ASNON IJ FMAMJ J ASOND -1 ------I -------------------------------WN -2 196 1961 62 1963 1964 J F X JA SO0 J FVA M 1 AS A ONM0 J F M AMJ J A S OOND J F MA MJ J AS ON..0 .D J'F MAM J J AS ON 0 MW 196 M" 963 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.

PAGE 43

INFORMATION CIRCULAR NO. 48 37 The long-term trend of artesian water levels in the Orlando area is shown in figure 31. +ORANGE 47 DEPTH 350 FT. CASED 328 FT. FLORIDAN AQUIFER +9 +8 +7 +8-0--------------------------------W +5 S+3 6 -4 -----------.J-_-_-_--__---____ i +2 0 W -4 -5 [ l M-6 Srd be-----8 1A z -9 J 10 -1.2 :--„ -------,_ --J -g.,4-----------------------------L-->-II -1 " -13S-14 : -15 -16 ----17---18 -19 -20 1930 1935 1940 1945 1950 1955 1960 1965 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.

PAGE 44

38 FLORIDA GEOLOGICAL SURVEY BREVARD 19 DEPTH 413 FT. CASED 80 FT. FLORIDAN AQUIFER U 30 -------29 -------Z8 25 24 ?i --------------------------_ _ a _____ _ _ _ _------_--_ 23 22 20 ^z7-------------------------1-----^: ----------.---------19 18 14 -4UT 4.. ,..FO.D" AQ..E -,.2-----------_--"-------------,------------!----_-__--------------£ 16 -----------------------------------g 16------------------------------------------------------141-1-----------------------11-II------I---1--I--1--I-I-I-I-I-I0 Z BREVARO 1479 DEPTH 160 FT. CASED 8105 FT. FLORIDAN AQUIFER §1i ^ --------------+ --------------------------4 ---------------13 -J +2-----------------+-F-----#--------12 0 ---I i-Il--ILI BREVARD 148 DEPTH 206 FT. CASED 105 FT. FLORIDAN AQUIFER zae (0 ---dy an e r-nlo l oi --I---i-A I -----------4"2-, -1 'i---25 INDISTN RIVER Z25 DEPTH 19 FT. CASED 13 FT. SHALLOW SAND AQUIFER (NONARTESIAN) ...UJ 32 ------.. 31 1 --1 -1 zt 30 ------29-.----28 " jErE LUj S26 ,u 25-25 -a 24 . 23 1945 1950 1955 1960 1965 1970 1975 19tpr Figure 32. Hydrographs showing trends and fluctuations of water levels near Cape Kennedy and eastern-central coastal Florida.

PAGE 45

INFORMATION CIRCULAR NO. 48 39 Hydrographs of four wells in Brevard County show a longterm 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 economic 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.

PAGE 46

40 FLORIDA GEOLOGICAL SURVEY MANATEE 92 DEPTH 600 FT. CASED 154 FT. FLORIDAN AQUIFER 34 35 36 --------------37 ----------------------0 38-----cr 39 -,--------5 42---------------_ ---_--------JL , 40 z741 -42 S43: , 45 T I : I ^ ----------.--H^ -^---------------^ ---4 6 --47 SARASOTA 9 DEPTH 730 FT. CASED 101 FT. FLORIDAN AQUIFER -2 52 Ic N Ft. Myers Area = -i---b! -j < -3I I I I ", -5 UThe Ft. Myers area includes Lee and Charlotte counties and -9 -. --12 1930 1935 1940 1945 1950 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.

PAGE 47

INFORMATION CIRCULAR NO. 48 41 IMANATEE OKEECOBEE ST. LUCIE .....i___ o ioo ' ... s ...J .... ---SARASoTA DESOTO HIGHLANDS SA R T' CH R LOTTE EGLA DES -0 EE-V--------,---i---}---------~----J.S\ `\ ;a ^ L E E H E N D R Y P AL EA CH C L L I E 0 W A RD 5 329 S HA,\ -.G Ai -Gf--------s3 Figure 84. Map showing locations of wells in southern Florida for which (3 1 G S i ° i 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 flucture 34. Map showing locationser levels in southersian 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 fluctuations 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 fluctions in the amounts of rainfall. Figure 36 shows the trends and

PAGE 48

42 FLORIDA GEOLOGICAL SURVEY O2 LEE 246 S J F AM JASOO FMAMJJASO FONMA JJAS DSJ FMAMJ JASONDJ FMAMu JASONDJ FMAMJ JASOND 1960 1961 1962 1963 1964 F MJ JAONDJ MA J IJ J A S NDJFMAMJ A S 0 N J F M AMJJ A S 0 N 0 F AMJJAS ND S960 862 196 664 Figure 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. 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.

PAGE 49

INFORMATION CIRCULAR NO. 48 43 LEE 246 DEPTH 27 FT. CASED 19 FE TAMIAMI PORMATION NONARTESIA a 7-.:4 4 ---+ -------2 -J I , ---------------£» 9--4-----------444-----------------------iJ --------4-+ ------------------LL.r 12 Water level is affected pumping of tearby wells -' 4I I i T -..L L. ..I 1n II LI I-I14 COLLIEk C131 DEPTH 54 FT. CASED 22 FT. TAMIAMI FOWMATION (NONARTESIAN) 28 § 27--rn---:----------[-----.----.----------------------I*-1S25 7 r 24 21 "e 19s------------------------------IT1 ------------------COLLIER C54 DEPTH 9 FT. CASED 8 FT. SAND AND SANDSTONE AQUIFER (NONARTESIAN) 12 -8 +1---------------------------^ -j ---15-----------------------------------.7 I ' MARTIN 147 DEPTH 74 FT. CASED 73 FT. SDNSANDSTONE AQUIFER (NONARTESIAN +15 +14--1 -1 -I--+1-----------------------44 L ---.-------------.,4C-----------------J---J-i----------------t+13----------------------------}-------------"+72-------------------L--_------------S+3 w I5 il-------4---1 -1 1 2 uj +-____-__A--IL_.,--.-----------W_o----------------------------B------<-----------I--. 1945 1950 1955 1960 1965 1970 19T5 1 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. n I 1 S15 _z 12 Martin 147 near Stuart, Florida.

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44 FLORIDA GEOLOGICAL SURVEY I30 9-i f -7/ o Io7 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 hydrograph 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

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INFORMATION CIRCULAR NO. 48 45 10 \ PALM BEACH 88 SJFMAMJJ AS ON 0 JFMAMJ J ASONDI JFMAMJ J ASOND FMA M JJAS ONDJ FMAMJJ ASOND 1960 1961 1962 1963 1964 S12 -4 I ...... | | I I J FM FMA JASSNDNJFMAMJJASONDJFMAMJJASONDJFMAMJ JASONDJFMAMJJASONO 1960 1961 1962 1963 1964 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.

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FLORIDA GEOLOGICAL SURVEY 13PAM BEACH 88 DEPTH 17 FT. CASED 16 FT. BISCAYNE AQUIFER '2 i A D 6I DETl--rI 1 1 I I B A Mz 5 I I I I 1,1 1 0 4 Lii7--kM------------------------2 ---t-----4-------------------I-------u------------4-------------------0----------UM--------------------z 3 ^ °i toI-t ,J -! I I I I I i I I I I I I I I S +1BROARD 6561 DEPTH 20 FT. CASED 20 FT. BISCAYNE AQUIFER -U L II-------------------0m | >i 0--9 9d r h .w1 "re d n fut--in-------------oLf_-_-_a------------------------4-------------------i 4 -1------------------------------_----------d5 eM DB1 ARDE G617 DEPTH 29 FT. CASED 28 FT. BISCAYNE AQUIFER -1.4 ----4---------^----------------------Li +13-------------------------------------_-_ ,, II I -, 2 -0 10 .l 8 uli --S w 2 " , 1 nDE a553 DEPTH 91 FT. CASED 79 FT BISCAYNE AQUIFER -I-1 1945 1950 1955 1960 1965 1970 1975 1980 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.

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INFORMATION CIRCULAR NO. 48 47 SBROWARD F291 DEPTH 107 FT. BISCAYNE AQUIFER ww -. 6J -_j 5 A 4 DADE SI8 DEPTH 52 FT. BISCAYNE AQUIFER ',DADE SI96A DEPTH 20 FT BISCAYNE AQUIFER___ S* I -I I + 7 --_ 26 --[ w > 4 DADE S196A DEPTH 20 FT. BISCAYNE AQUIFER WI--K IF o 9 1 BROWARD S329 DEPTH 68 FT. BISCAYNE AQUIFER "i 8------------------------T----1----------||I --1-1-| II" 1+9 W-+8 >0W 7+7 --_Noreco, d ovoI a bie I 1930 1935 1940 1945 19501955 1960 1965 zw +w 3 -W -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. U-i
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48 FLORIDA GEOLOGICAL SURVEY BROWARD G 514 --.--, -BISCAYNE AQUIFER ^ \r-DEPTH 177 FT 4000 3000 3500 3000 2500 2000 000 I\ BROWARD S 830 15001 --BISCAYNE AQUIFER _ ' i i^ ^ DEPTH 119 FT Si000o---" = 500---, ,. 0--S_ 1 1000 z DADE F296 S600 -I ---BISCAYNE AQUIFER DEPTH 47 FT. H 4001 200 ^ B aG5aS3n F No Record ale i 1 DADE F 64 1200o --,BISCAYNE AQUIFER ",,DEPTH 114 FT 600 400200 -sw I I 5 I 190eo I I65 Figure 41Graph 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.

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INFORMATION CIRCULAR NO. 48 49 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 observation 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 Homestead in well Dade S 196A. Long-term record of water-level fluctuations at Homestead are shown in figure 40. Figure 42 shows trends of water levels and rainfall recorded at Homestead Experimental Station 1960-62. I_____,MASON _JA__OMMO____M____________M I JFMAMJJASONDJFMAMJJASONDJFMAMJJASONDMJFMAMJJASOND JFMAMJJASOND d960 1961 1962 1963 1964 2+1 S+8 S+16 I I , I I I'II I I I I I j 1 , , ., , , , , I , , I , , I , , , , , ; I ., i W V F MA MJ A SO ND J F M A MJ J AS O ND J FMA M J J A S ON DJ FMAM J J A SO N D J F MAM I JJASON D 960 1961 1962 1963 1964 Figure 42. Graphs showing trends and fluctuations of water levels in well Dade S 196A, and departures from monthly normal precipitation at I Homestead Experimental Station, 1960-62. t12

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50 FLORIDA GEOLOGICAL SURVEY Except for the relatively narrow coastal strip, most of the Miami area is occupied by the Everglades. Fluctuations of groundwater 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 municipal well field of the City of Miami. DADE 519 DEPTH 95 FT. CASED 91 FT. BISCAYNE AQUIFER -'!+-~ .-----I | -tWater level is ofected'b puming of nearby wells DA DEPTH 6 FT CASED 6 F BISCAYNE AQUFER 10 -191, 55 10 15 10 1 in wes Dade S 19 and G 10 near Miami, and Dade G 72 northwest of --3: I I 'E 672 DEPTH 5 FT. CASED 4 FT. BISCAYNE AQUIFER I I t I-I -----.-T I--N _.-, -----I----------------40 1945 1950. 55 1960 15 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.

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INFORMATION CIRCULAR NO. 48 51 DADE G596 DEPTH 13 FT. CASED II FT. BISCAYNE AQUIFER S +10 > +9 G-D +8 E A Id LJ +7 S+4---->5 iJ +3-M +2 -o -I I --------1 DADE G618 DEPTH 20 FT. CASED II FEET BISCAYNE AQUIFER +10 +9 gs. +----------------------111 11 11--------+4----------------------iF -i: --------LU +5 Lý +4 +2 -I DADE 6613 DEPTH 21 FT. CASED 18 FT. BISCAYNE AQUIFER -+6 .+5 l IJo +3-r... aq.fe b th enracI........tr.. WW +21-0 +1i an are hef 0-S -1 DADE G620 DEPTH 16 FT. CASED 6 FT. BISCAYNE AQUIFER .8 6 w W W WII 0 o -I -2 ------------1945 1950 1955 1960 1965 1970 1975 1980 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 decrease in chloride content of ground water in many areas. 4----W S 1945 195 695 16 95 17 95 18 Fiur 445 yrgah hwn rnsadfutain fwtrlvl in wel DaeG56 U 1,G63 n 2 ncnrlDd ony In th MiaITaea nohrcatlaes h otmnto of the Bicyeaufrb h nraheto at ae sa evrprsn prbe.Truhitniepatc fwtrcnrl

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52 FLORIDA GEOLOGICAL SURVE. soo-t------------------»ec------------To--------------A. 400 --------1 1 -CI DADE 6354 -MUW AQUFER -DEPTH 91FT loOoE 6580 I --\ -BSCWuM WER em --4_DEPTH 22 FT § 600o-1 ' -41 | 5 00C ----------I 0ADE G469 4000 ----M ER DEPTH 137 FT 0 i. 0 A. -i --K : -........ 3000-25002000 f-\ ---------5004 DADE S529 SiBSC4 AQL ER 1 -_ I DEPTH 1 FT. 600 -1---------10o0 -\ --------500Dad County.R -_ MrEH 79 F Dade County.

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INFORMATION CIRCULAR NO. 48 53 APPENDIX Table 1.--Summary of well data and water levels in selected observation wells.

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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, semiannually; 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. SWater level above (+) or below (-) land surface I m M (feet) Sell number Prior to 1961 Highest water xiu Remarks Sl .r -~_ ay or J une level in May range a s a. u May or JuneLo Sp t l EI | (year) (year) 1961 1962 1961 1962 ALACHUA COUNTY 936-236-1 F 252 136 1958 C -23.48 -24.88 -23.85 -29.74 4.50 4.51 1960 1959 942-216-1 F 447 175 1957 B -89.55 -93.04 -88.52 -91.84 2.89 3.15 1958 1957 949-235-2 F 300 250 1960 B ------37.68 -39.17 0.63 3.83 BAKER COUNTY 011-227-1 S 13 18 1958 C +0.17 -3.00 -2.21 -4.01 4.24 4.68 1959 1960 014-226-1 F 168 --1957 B -------100.48 ---1.53 016-207-1 F 625 400 1945 B -55.4 -56.53 ----71.27 ---3.03 1945 1945 026-214-1 H 198 102 1960 B --------18.95 ---5.76 BAY COUNTY 7 (010-541-1) F 253 --1936 B -42.33 -66.69 -72.79 -77.58 11.16 9.98 P 1947 1960 8 (016-538-1) F 435 300 1936 B +1.80 +1.08 +1.20 +1.80 1.10 1.47 1952 1955 10 (014-536-1) F 300 --1936 B -6.76 -9.53 -9.79 -10.67 2.56 3.11 1950 1957 12 (017-551-1) F 290 --1961 B -----+0.72 +0.50 1.55 0.73 20 (008-537-2) F 457 140 1951 C -117.81 -139.0 -132.5 -124.6 37.3 23.2 P 1952 1955 43 (004-535-1) F 645 238 1946 B -62.8 ----92.6 -128.7 18.5 48.0 1948 53 (012-552-1) G 134 114 1961 B --------8.97 0.58 0.70 62 (956-525-1) F 63 --1961 B ----------11.50 1.43 1.13 65 (006-525-1) F 200 --1961 B ---------+4.30 2.3 5.6 68 (023-526-1) F 160 158 1961 B ---------+1.81 ---1.76 69 (025-525-1) G 153 136 1961 B -------13.76 ---1.67 | \,.'»

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Water level above (+) or below (-) land surface 0 i (feet) 0 l ell n er Prior to 1961 Highet water Maxim Rearks Woell tuer 0 1 Remarks r. -Ma oa3 lvel n Ma range , .n.e ac High Low 19 Z ~, a-,, (-ear) (year) "1961 1962 1961 1962 BAY COUNTY--Continued 012-541-213 F 345 326 1962 M ---------------2.71 BRADFORD COUNrY 000-210-2 F 294 247 1959 B -------70.84 -73.96 1.86 2.11 BREVARD COUNTY 19 (305-045-1) F 413 80 1934 B +27.3 +20.2 +19.6 +20;6 7.0 1.2 P 1950 1956 20 (795-043-2) F 447 125 1934 B +28.7 +21.0 +20.4 +19.8 3.4 3.2 S 1947 1956 79 (347-051-1) F 160 85 1946 B +5.1 +0.14 +1.9 -0.55 2.8 2.92 S 1947 1956 143 (321-0!5-1) F 206 105 1946 B +10.9 +5.7 +7.1 +4.3 4.4 3.8 S 1953 1955 59 (334-039-1) F 210 144 1946 B +14.9 +8.2 +11.5 +9.1 3.0 3.2 S 1953 1958 759-045-1 S 9 4 1958 C -4.4 -6.2 -5.7 -6.4 0.4 0.6 1958 1959 307-039-2 S 50 4 1958 C -6.5 -7.3 -7.2 -8.2 1.1 0.2 1959 1960 814-048-2 S 9 4 1958 C -0.9 -2.9 -3.1 ---0.1 --1959 1960 322-046-7 S 32 4 1958 B +21.5 +20.3 -----------M 1959 1958 822-047-2 F 129 4 1960 C +32.6 +29.9 +29.5 +28.1 0.9 1.2 M 1960 1960 BROWARD COUNTY 9291 B 107 --1939 C +4.3 +0.4 +2.2 +1.2 2.1 2.6 M 1958 1952 G56L B 20 20 1948 C +4.1 +0.2 +2.2 +1.1 2.1 3.0 M 1958 1956 G616 B 25 19 1952 C +12.9 +8.7 +11.6 +10.7 5.1 3.9 M 1957&58 1956 G617 B 29 28 1950 C +6.6 +2.8 +6.1 +3.8 3.0 3.7 M 1954 1956 0820 B 224 215 1956 C -------2.5 -0.8 4.5 6.2 M; Prospect well field 0853 B 22 21 1960 C ---------+2.8 ---4.0 M; Pompano well field S329 B 68 --1940 C +5.5 +0.5 +3.3 +2.2 3.9 4.6 M; Dixie well 1955 1954 field

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" Water level above (+) or below (-) land surface A -o (feet) ell ber Prior to 1961 Highest water Maximum Remarks Well number 44 44 .0 u r Maxirks 'a level in May S C .0 a May orJune l inay range U o.s n 0s 01 High Low P19' Ev s. (year) (year) 1961 1962 1961 1962 CALHOUN COUNTY 1 (026-502-1) F 212 --1961 B ------2.27 -3.05 1.39 2.85 7 (026-509-1) F 188 64 1961 B ------+8.0 +7.4 1.2 1.6 11 (014-511-1) F 147 47 1961 B -----+11.7 +10.9 0.5 2.6 CITRUS COUNTY 15 (902-228-1) F 78 --1933 B -8.62 -19.83 -11.88 -18.38 4.13 4.35 1959 1956 856-223-2 F 91 --1961 B ---------48.36 7.57 4.71 CLAY COUNTY 5 (006-149-2) F 530 157 1940 B +35.5 +21.0 +24.0 +21.6 3.1 2.6 1947 1957 7 (958-139-1) F 650 276 1940 B +16.4 +11.8 +16.2 +15.2 2.9 2.9 1952 1953 948-202-6 H 144 80 1960 B ------45.67 -47.72 1.71 3.04 -45.33 feet only May measurement prior to 1961 948-202-7 NA 42 40 1960 B ------29.38 -30.94 2.80 3.62 -28.38 feet only May measurement prior to 1961 948-202-8 F 250 193 1960 C ------55.02 -57.56 1.63 2.74 COLLIER COUNTY 54 B 9 8 1951 C +13.1 +8.6 +9.7 +8.5 4.1 5.5 M 1958 1956 131 B 54 22 1952 C +26.2 +21.9 +21.5 +21.2 4.9 6.2 M 1958 1955 164 B 51 20 1958 C +5.5 +1.3 +2.4 +1.8 4.9 7.2 M; Naples well 1959 1960 field 271 B 38 --1959 C -3.8 -4.9 -5.1 -4.5 3.1 4.5 B 1960 1960 296 B 45 --1959 C -9.4 -10.3 -11.0 -11.1 3.3 4.2 1960 1960 COLUMBIA COUNTY 9 (010-238-1) F 836 --1942 C -79.60 -97.02 -88.99 -92.55 3.71 2.72 1948 1957 DADE COUNTY F45 B 85 --1939 C +3.9 +1.6 +2.1 +1.5 1.4 3.4 M; R, 1959 1960 1960 F179 B 77 --1940 C +6.0 +0.9 +2.5 +1.6 1.9 2.7 M 1958 1945 F240 B 60 --1939 C ---------+1.2 ---2.6 M; R, 1961 F319 B 17 13 1940 C +5.4 +0.5 +3.3 +1.5 1.5 1.3 M 1958 1945

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water level above (+) or below (-) land surface (teeat) Pl umer .Prior to 1961 Bigesat water Maxmim We ber a a level in hMay S () 1961 1962 191 1962 DADE COUITy--Continued P358 B 54 --1940 C +6.7 -0.8 ---+0.4 ---5.8 M 1954 1945 G3 B 20 11 1940 C +3.0 -0.5 +1.5 -1.3 2.4 4.8 M; P 1958 1951 GIO B 6 6 1940 C +6.0 +0.5 +4.3 +1.4 3.2 3.6 M 1958 1945 c39 B 8 6 1939 C +7.2 +2.2 +3.3 +1.3 2.8 1.8 M; P 1958 1955 G72 B 5 4 1940 C +6.5 +1.2 +4.8 +2.5 3.2 3.4 M 1958 1945 GC76 B 24 19 1947 C +5.5 +0.4 +2.1 +1.2 1.6 1.7 M 1958 1950&56 G553 8 91 79 1947 C +8.6 +1.7 +4.8 +1.4 3.7 4.1 M 1958 1956 G580 B 22 4 1960 C +4.2 +2.4 +5.3 +1.3 3.8 2.9 M 1960 1960 G395 B 14 11 1949 , +8.5 +1.3 +2.3 +1.0 4.1 5.5 H; P 1958 1960 C596 B 13 11 1949 C +8.4 +3.2 +6.3 +2.6 3.9 5.7 H 1958 1952 G6L3 B 21 18 1950 C +5.5 -0.5 +3.6 +0.1 4.8 5.6 H 1954&58 1956 G614 B 20 18 1950 C +8.2 +0.9 +3.9 +1.0 3.9 6.2 H 1958 1956 G613 B 20 11 1950 C +8.4 +3.7 +6.5 +3.9 3.6 4.2 M 1958 1956 G619 B 12 6 1950 C +8.3 +4.3 +7.5 +7.4 2.2 3.6 H 1958 1956 G520 B 16 6 1950 C +7.0 +3.6 +6.0 +5.5 1.1 3.5 H 1958 1952 G757 B 20 10 1957 C +9.3 +2.1 +4.9 +1.5 4.9 6.0 H 1958 1956 G789 B 20 10 1956 C +7.3 +2.0 +6.6 +1.2 4.8 6.4 M 1958 1956 G799 B 20 10 1956 C +7.8 +2.0 +4.1 +1.7 2.8 3.4 H; P 1958 1956 G850 B 22 11 1959 C +2.3 +1.2 +1.8 +1.4 0.9 2.2 M 1960 1959 G851 B 18 11 1959 C +2.9 +1.8 +3.3 +1.9 1.8 3.3 H 1960 1959 G852 B 22 10 1959 C +2.4 +0.4 +1.4 +0.7 1.5 3.7 M 1960 1959 G855 B 20 10 1958 C ----------9.1 ---5.0 B 357 19 135 1959 C +3 +1.8 +3.5 +1.3 2.6 3.0 H 19;1 1960 G858 B 20 11 1959 C +6.3 44.2 +5.1 +1.9 4.5 6.9 H 1960 1959

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Water level above (+) or below (-) land surface -ea -(feet) e3 ll or Prior to 1961 Highest water Maximum Well number r ---g Remarks a " o level in May range -= *0 -0 1 May or June 44 W Cu " UK 3 :S = I usW as High Low U4 Is .(yea) (y 1961 1962 1961 1962 .61 = ea (year) DADE COUNTY--Continued G859 B 20 11 1959 C +5.8 +1.9 +3.5 +1.2 4.1 5.1 M 1960 1959 G860 B 20 11 1959 C +5.0 +2.4 +3.0 +1.2 5.0 3.6 M 1960 1959 G861 B 23 11 1961 C ---------+2.3 2.5 5.0 M; R, Nov. 1961 G863 B 18 6 1961 C ---------+1.5 ---6.2 M; Do G864 B 20 11 1959 C +5.3 +1.0 +3.7 +0.4 5.8 6.0 M 1959 1959 G865 B 19 13 1959 C +1.8 +0.9 +2.0 +1.6 1.4 1.4 M 1960 1960 G968 B 50 --1960 C -----+4.1 +3.1 2.5 3.3 M G968A B 3 --1961 C ---------+3.6 0.7 3.2 M; R, Nov. 1961 G970 B 15 10 1958 C +4.0 +2.4 +4.3 +2.2 2.5 2.8 M 1960 1959 G972 B 15 10 1958 C +5.5 +4.5 +5.3 +3.5 3.0 4.3 M 1960 1959 G973 B 15 10 1958 C +4.5 +2.3 +3.4 +1.7 2.5 2.1 H 1960 1960 G974 B 15 10 1958 C +5.4 +3.3 +4.7 +2.7 3.6 3.6 H 1960 1959 G975 B 15 10 1958 C +6.9 +5.5 +5.4 +4.2 5.1 4.4 H 1960 1959 G976 B 15 10 1958 C +6.0 +4.2 +5.6 +2.9 3.2 3.7 M 1960 1959 G978 B 15 10 1958 C +6.7 +4.9 +6.1 +2.9 3.9 4.1 M 1960 1959 G1045 B 20 12 1960 C +2.3 +1.5 +1.7 +1.5 1.6 3.0 M 1960 1960 G1165 B 12 11 1961 C ---------+1.5 1.2 3.4 M; R, Oct. 1961 G1166 B 11 11 1961 C ---------+5.6 0.5 1.9 M; Do G1183 B 25 --1961 C --------+1.0 4.0 0.9 M; Do NP44 B 33 --1960 C +2.9 +0.2 +4.5 +0.8 4.5 4.2 M 1960 1960 NP46 B 25 --1960 C +1.3 +0.3 +0.3 -0.3 2.4 3.4 M 1960 1960 NP57 B 54 --1961 C ------+1.9 +0.1 2.2 2.9 M NP62 B 20 9 1962 C -----------------M; R, Oct. 1962 NP67 B 20 6 1962 C ------------M; Do NP72 B 20 6 1962 C --------------M; Do S18 B 52 --1939 C +3.2 +0.10 +2.4 +1.4 1.4 1.8 M; P 1942 1945 S19 B 95 91 1939 C +7.3 -1.2 +1.9 -0.5 2.5 4.4 M; P 1958 1945 S68 B 61 51 1939 " +3.2 -2.1 +0.3 -3.0 2.7 4.9 M; P 1958 1945

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c Water level above (+) or below () land suriface a (feet)WeLt nuer Prior to 1961 Highest water Maxiami Rerk U 0-0 y laorJuno level in May range c 0may or June a High Low _ A 'i (y r) (year) 1961 1962 1961 1962 DAE COUNPY--Continued 3S12 B 51 --1940 C +9.5 0.0 +3.5 +0.7 3.6 3.1 H 1958 1945 SL96A B 20 --1932 C +8.5 -1.0 +3.9 +0.4 4.1 7.5 H 1958 1945 DE SOTO COUNTY 703-157-1 F 468 189 1962 B ---------------6.95 704-147-1 F 462 --1962 C --------------0.93 720-1.48-1 F 470 --1962 C ---------------1.32 DIXIE COUNTY 15 (937-306-1) F 215 105 1957 C -2.77 -5.15 -6.55 -8.20 3.26 1.86 1959 1960 DUVAL COUNTY 12 (019-140-1) F 785 --1938 B +27.5 +15.9 +21.0 +15.1 9.8 9.8 P 1947 1957 18 (018-14-0-1) F ----1938 B +39.9 +22.5 +26.4 +20.1 8.0 10.2 P 1947 1957 102 (019-133-1) F 875 400 1930 B +6.4 -17.95 -15.02 -20.94 4.82 8.00 P 1931 1960 107 (023-136-1) F ----1939 B +53.2 +35.3 +36.8 +34.4 4.8 4.5 P 1939 1959 115 (016-142-1) F 729 476 1930 B +36.2 +14.7 +17.2 +11.6 7.0 8.4 P 1938 1957 118 (018-143-1) F 900 --1939 B +32.9 +16.4 +17.6 +11.9 4.5 7.2 P 1947 1957 122 (023-138-1) F 905 571 1930 M +44.9 +27.9 +28.8 +25.6 4.7 3.7 P 1947 1957 123 (019-142-1) F 1,075 --1930 B +39.0 +20.3 +21.7 +15.7 4.4 6.2 P 1931 1957 129 (015-141-1) F 600 470 1940 B +40.4 +21.2 +23.5 +17.4 7.8 8.9 P A. 7 1957 145 (028-137-1) F ----1940 ,.2 +8.3 +9.1 +5.58 4.5 3.3 P 1947 1957 149 (024-136-1) F 800 --1940 B +25.7 +12.4 +11.4 +9.8 4.6 4.3 P 1947 1956 151 (023-139-1) F ----1940 B +43.4 +34.1 +34.9 +31.0 6.3 5.3 P 1952 1956 152 (027-133-1) F ----1940 B +29.9 +22.1 +21.5 +19.6 4.5 5.8 P 1952 1957 154 (013-135-1) F 625 461 1940 B +29.6 +14.8 +14.1 +10.5 5.2 5.6 P 1947 1960 160 (018-123-1) F 585 357 1934 B +41.7 +26.2 +25.5 +20.2 6.1 8.5 P 1934 1960

PAGE 67

Water level above (+) or below (-) land surface a (feet) "nmber >w Prior to 1961 Highest water Maximum R Well number ayorJune level in Hay range S )' May or June 4j U k S. OB z _ .l s H h) (year) L 1961 1962 1961 1962 DUVAL COUNTY--Continued 164 (025-125-1) F 840 450 1930 B +43.8 +29.0 +29.3 +25.8 3.8 4.5 P 1931 1956 206 (015-145-1) F 1,920 1,000 1941 C -2.06 -15.58 -13.55 ---3.85 2.62 P 1948 1956 262 (026-135-1) F 1,393 584 1951 B +37.0 +25.6 +26.2 +23.5 3.7 3.7 P 1951 1957 263 (026-135-2) F 1,025 850 1951 B +35.5 +26.1 +26.9 +24.2 3.7 3.8 p 1952 1957 264 (026-135-3) F 700 450 1951 B +35.3 +25.9 +25.9 +23.2 3.5 4.1 p 1952 1957 265 (025-136-1) F 556 --1951 B +39.4 +29.0 +25.3 +22.3 6.6 7.8 P 1952 1957 ESCAMBIA COUNTY 39 (023-716-2) G 247 --1940 M -4.59 -12.00 -7.89 -10.95 3.04 4.24 1940 1955 45 (036-719-1) G 152 152 1940 C -69.30 -111.82 -103.27 -101.71 2.79 1.94 P 1941 1956 46 (031-716-1) G 239 239 1939 W -58.09 -82.12 -67.54 -68.66 2.86 3.75 1948 1956 62 (024-715-1) G 142 142 1940 C -6.50 -23.84 -14.34 -15.22 3.97 5.72 1949 1955 62A (024-715-2) C 18 18 1940 W -10.22 -12.53 -11.35 -12.02 1.55 2.91 1944 1954 73 (035-715-3) G 306 198 1951 C -39.03 -56.66 -50.94 -51.76 5.90 4.10 P 1953 1958 74 (036-716-1) G 352 350* 1951 C -77.37 -89.52 -86.67 -86.30 3.06 2.70 *Screened from 1952 1959 260 to 270 feet and from 340 to 350 feet 83 (035-714-3) G 301 --1954 C -36.10 -41.99 -37.05 -37.53 7.37 6.48 P 1955 1956 026-713-5 G 149 144* 1959 W -58.15 -58.90 -59.15 -59.57 ].63 5.08 *Screened from 1960 1960 144 to 149 feet 026-713-6 G 65 60* 1959 W -51.78 -51.98 -52.46 -52.14 1.90 5.77 *Screened from 1960 1960 60 to 65 feet 032-724-1 G 170 165* 1959 M ------91.22 -91.93 1.25 1.61 *Screened from 165 to 170 feet; -91.18 feet only Hay measurement prior to 1961 054-726-1 G 206 201* 1959 B -86.40 -89.48 -85.64 -82.95 3.75 2.75 *Screened from 1960 1959 201 to 206 feet 054-726-2 G 107 102* 1959 B -70.88 -74.92 -69.68 -65.21 5.62 3.64 *Screened from 1960 1959 102 to 107 feet FLAGLER COUNTY 14 (927-115-1) F 417 --1936 B -3.4 -7.38 -7.12 -8.19 2.30 2.67 1937 -1956 44 (928-122-1) F 159 --1956 B -7.67 -11.41 -9.16 -11.44 5.60 6.87 P 1959 1956

PAGE 68

SI Water level above (+) or~ elow (-) land surface (feet) * " 5 Prior to 1961 Righest water Maxiaum erk r o level In ayl Remarks 'ell uumber May or 'June r in M gange. FRANIJH COMUTY 10 (950-439-1) F 380 --1958 B -1.86 -2.47 -1.80 -4.45 1.42 3.45 1959 1958 31 (943-458-1) F ----1949 B +3.95 +0.40 +2.20 +1.55 1.00 1.30 1950 1952 947-446-1 F 98 --1961 B ----------11.26 1.23 1.09 957-443-1 F ----1961 B ---------+2.97 0.93 2.20 GADSDEN COUNTY 035-434-1 F 406 --1961 B ----------90.96 13.68 1.40 039-425-1 F 525 381 1961 B ----------143.96 3.00 4.07 GILCHRIST COUNTY 953-251-1 F 65 42 1961 B ----------22.11 8.27 10.95 GULF COUNHY 30 (948-518-1) F 522 475 1946 C -7.11 -27.22 -7.50 -8.93 2.14 3.06 P, prior to 1956 1950 1954 33 (939-521-1) F 595 487 1961 B ---------+1.29 0.75 0.45 34 (006-511-1) F 578 248 1961 B ----------10.0 3.0 22.5 P HWILTON COUNTY 036-305-1 F 273 60 1961 B ----------101.78 0.87 11.04 HARDES COUNTY 731-145-1 F 450 --1962 C ----------33.60 ---8.88 BENDmY COUNt 3 S 10 8 1941 *D, +19.5 +14.3 +18.0 +14.2 4.7 6.6 M; *D, 1941-44; *C 1958 1956 *C, 19505 S 13 8 1941 C -3.5 -6.3 -5.0 -6.2 2.8 4.0 B 1952 1956 HERNANDO COUNTY 838-215-1 F 140 ---1961 B ----------20.28 2.50 3.51 HIGHLANDS COUNTY 9 S 26 22 1948 C +130.4 +126.0 +128.2 +136.8 3.2 4.2 H 1953 1949 10 S 45 41 1948 C +90.7 +83.9 -88.6 +84.9 4.1 7.7 H 1958 1956 11A S 10 8 1956 C +48.3 444.5 +47.1 +44.2 2.9 4.9 M 1957 1956 13 S 20 16 1948 C +28.9 +22.7 +24.6 +21.6 5.1 7.8 H 1957 1956

PAGE 69

" :Water level above (+) or below (-) land surface e -9» 4 w (feet) S-----ell number Prior to 1961 Highest water Maximu Re Well number _W Q4 .U || -Remarks S V jMay or June ran a. msx (year) (year) 1961 1962 1961 1962 HIGHLANDS COUNTY--Continued 14 S 35 29 1948 C +22.2 +14.7 +21.5 +17.0 8.0 8.2 H 1960 1951 15 S 23 19 1948 C +58.3 +53.8 +57.3 +55.3 3.8 4.5 M 1953 1956 440 S 22 18 1956 C +116.9 +112.6 +114.3 +111.4 2.7 5.9 M 1958 1956 .HILLSBOROUGH COUNTY 13 (807-230-3) F 347 46 1930 C -6.70 -11.05 -10.74 -11.91 4.47 5.82 P 1931 1956 30 (744-225-39) F 500 34 1950 C +8.70 +1.63 +3.01 +3.98 5.87 6.26 1959 1952 500 (742-219-1) F 330 97 1951 B -50.82 -57.98 -----9.42 5.89 1958 1956 751-203-1 F 759 65 1957 B -42.52 -47.04 -54.60 -61.05 11.24 8.97 1958 1960 801-213-15 F 417 --1958 C +0.55 -2.89 -5.64 -8.06 7.57 10.62 1959 1960 HOLMES COUNTY 4 (043-556-1) F 187 --1938 B +4.92 +1.82 +3.10 +3.60 2.60 3.10 1960 1956 7 (058-535-1) F 205 170 1938 B -8.09 -15.66 -9.94 -12.45 3.72 2.17 1949 1956 7A (058-535-2) NA 13 10* 1960 B -------5.99 -5.77 8.50 10.61 *Screened from 10 to 13 feet -3.83 feet only May measurement prior to 1961 050-548-1 F ---1961 B ---------+3.90 1.00 4.86 051-556-1 F 260 --1961 B ---------205.76 5.03 4.40 052-545-2 F 300+ --1961 B --------+13.8 5.1 5.8 INDIAN RIVER COUNTY 25 S 19 13 1950 C +30.2 +25.4 +27.7 +26.9 3.2 4.7 M 1957 1956 JACKSON COUNTY 23 (042-453-1) F 475 100 1950 B -22.54 -38.15 -31.38 -25.20 9.68 7.19 1958 1951 044-506-1 F --94 1961 B --------76.05 4.03 6.25 046-515-1 F 180 --1961 B ---------99.78 3.49 9.28 053-527-1 F 341 260 1961 B ------86.70 7.56 14.66 058-503-1 F 83 --955 B ----------26.53 2.57 5.10

PAGE 70

SWater level above: (+)or below-( ) land surface C t c(feet) " eit nbr > Prior to 1961 Highest er. a Remarka ;-level in May fa * Mu a ay or June range III I I, i r ) (year) 961 1962 19611962 I I (year) (year) 196 JEFFERSON COUNTY 022-356-1 F 216 169 1960 S -140.57 -141.02 -141.30 -141.90 2.78 3.75 1960 1960 038-336-1 P 183 147 1960 S -19.10 -19.40 -22.03 -23.75 4.41 A.44 1960 1960 LAFAYETTE COUNTY 038-317-1 F 106 --1961 B -------44.04'11.99 2.49 953-312-1 F 146 112 1961 B --------8.89 3.86 3.23 LAKE COUNTY 13 (357-133-1) F 190 --1936 B -50.52 -59.82 -51.82 -57.32 4.91 2.65 1960 1957 20 (900-123-1) F 252 --1936 B +9.9 +5.52 +7.6 +5.60 1.9 1.75 1942 1956 22 (909-131-1) F 254 --1936 B -0.80 -3.10 -2.10 -3.54 1.82 1.64 1959 1956 322-149-L F 192 100 1959 S +111.70 +110.45 +109.57 +108.25 3.04 --1960 1960 322-149-2 S 23 18 1959 S +113.04 +111.20 +110.21 +109.74 3.94 --1960 1960 332-154-1 F 160 63 1959 C +101.62 +100.41 +99.57 +98.65 3.24 2.98 1960 1960 332-154-2 S 30 17 1959 C +101.93 +99.92 +99.56 +99.27 3.52 3.42 1960 1959 841-156-1 F 754 483 1961 B ---------22.82 2.42 1.95 LEE COUNTY 246 S 27 19 1945 C +19.2 +10.5 +16.3 .+12.6 5.0 6.8 M; P 1959 1949 414 H 94 60 1948 C +18.8 +11.1 +17.0 +14.5 8.4 7.2 M; P 1957 1955 LEON COUNTY 7 (027-416-1) F 314 165 1945 C -149.05 -169.91 -159.67 -160.80 4.43 4.94 1948 1955 36A (037-410-2) H 41 38* 1935 H -1.42 -33.14 -5.16 -14.99 15.53 13.01 *Screened from 1948 1956 38 to 41 feet 115 (031-420-1) F 194 104 1950 B -78.1 -93.3 -81.4 -84.6 3.2 3.9 1960 1957

PAGE 71

t .Water level above (+) or below (-) land surface .. o (feet) W n -. Prior to 1961 Highest water Maximum ell number MayorJune level in May range Remarks S" m May. or une _ " 14 4jo 0 o 0 ca High) Low .4 n S Nigmh .1961 1962 1961 1962 S -I o [94 (year) (year) 96 LEON COUNTY--Continued 024-420-1 S 57 --1960 C -7.88 -8.72 -12.25 -11.94 3.79 5.51 1960 196C 024-420-2 S 15 12* 1960 B -------5.10 -6.19 2.54 3.90 -Well point 2 to 15 feet: -4.98 feet only May measurement prior to 1961 026-418-1 F 296 106 1960 M -------74.64 -77.26 4.31 4.47 034-407-1 F 231 --1960 C -------165.26 -170.17 5.64 4.22 LEVY COUNTY 902-241-1 F 58 --1961 B ----------8.34 1.71 3.07 919-245-1 F 96 -1961 B ----------0.55 0.16 0.13 LIBERTY COUNTY 14 (001-459-1) ----1955 B ------4.68 -5.03 3.3ý 3.81 -5.68 feet only May measurement prior to 1961 15 (022-841-1) F 395 242 1960 C -------23.05 -24.32 4.24 3.38 010-440-1 F 118 89 1961 B ---------+7.2 1.0 4.6 023-447-1 F 160 --1961 B ---------+2.90 1.8 1.58 028-456-1 F 360 --1961 B ----------85.64 0.83 1.07 MADISON COUNTY 17 (029-325-1) F 320 300 1953 B -20.16 -38.12 -27.13 -28.03 7.57 8.07 1959 1955 18 (028-325-1) F 322 307 1952 C -18.18 -34.87 -24.35 -24.83 6.15 6.66 1960 1955 MANATEE COUNTY 92 (726-218-1) F 600 154 1941 B -37.10 -47.60 -49.12 -52.65 7.31 9.41 1947 1956 MARION COUNTY 5 (911-159-1) F 135 135 1933 C +13.62 +3.35 +11.20 +6.17 5.09 2.79 1960 1957 47 (902-156-1) F 179 --1936 B -13.84 -24.26 -16.29 -22.04 5.14 2.44 1960 1956 48 (859-150-1) F 152 --1936 B -1.07 -10.23 -0.82 -6.68 ---2.84 1959 1956 49 (910-138-1) F 175 --1936 B -25.0 -31.19 -25.77 -29.92 3.90 1.64 1942 1957 51 (910-210-1) F 106 --1935 B -26.04 -34.39 -28.44 -32.82 4.15 2.47 1960 1956

PAGE 72

Water level above (+) or below (-) land surface S"-. (feet) Well .r Prior to 1961 H ighest ater. xImUum -level In May, ,Remarks u May or June level in ay rg range S -" " ig H ) 1961 1962 1961 1962 a1. a (year) (year) MARTIN COUNTY L40 S 31 20 1950 C +20.2 +16.2 +19.1 +19.2 3.8 3.4 M 1957 1953 147 S 74 73 1952 C +9.8 +4.2 +7.0 +2.9 4.8 6.3 M; P 1958 1957 928 S 11 10 1957 C +32.4 +29.0 +30.0 +28.4 2.7 5.9 M 1957 1959 933 S 15 14 1957 C +23.4 +20.8 +23.3 +21.1 3.7 3.5 M 1960 1960 NASSAU COUNTY 2 (035-127-2) F 580 350 1939 B +42.0 +21.6 +25.2 +20.8 6.6 4.6 P 1947 1957 8 (032-126-1) F 680 --1939 B +41.1 +24.9 +24.2 +20.6 4.3 4.2 P 1947 1959 12 (038-127-1) F 640 --1939 B +24.0 -17.23 -2.14 -12.64 18.92 15.62 P 1947 1955 27 (040-126-1) F ----1939 B +10.1 -26.10 -17.12 -25.58 28.93 17.15 P 1946 1957 44 (037-136-1) F 1,000 450 1934 B +19.8 +3.3 +3.73 +0.26 6.11 4.04 P 1947 1957 50 (036-142-1) F 569 --1940 B +40.5 +22.4 +27.0 +22.1 3.9 6.5 P 1940 1956 51 (033-150-1) F 580 --1940 B +42.0 +26.3 +28.6 +26.2 3.4 1.9 P 1947W48 1957 55 (037-130-1) F 540 504 1940 B +33.1 +8.5 +14.1 +9.3 9.7 10.0 P 1947 1957 OKALOOSA COUNTY 3 (024-636-1) F 800 500 1936 B +20.1 -47.67 -42.93 -70.26 25.19 43.30 P 1950 1957 (034-626-1) F 652 409 1947 B -93.3 -111.2 -115.0 ---7.3 ---P 1948 1960 25 (038-631-1) F 609 456 1947 B -108.1 -121.9 -122.6 -124.8 2.2 3.1 P 1949 1959 27 (030-635-2) F 591 422 1948 B -27.9 -55.0 -60.7 -65.2 6.4 13.2 P 1951 1959 29 (035-637-1) F 766 524 1947 B -102.3 -119.1 -121.7 -126.4 5.4 4.7 P 1948 1960 31 (037-645-1) F 690 527 1948 B -46.8 -62.6 -65.2 -66.5 2.2 2.4 P 1948 1960 34 (028-629-1) F ----1947 B +26.6 +3.6 ----9.22 8.2 13.82 P 1950 1959

PAGE 73

S" " Water level above (+) or below (-) land surface r" o to 16 .. I" (feet) cc U 0 a4 c Prior to 1961 Highest water. Maximum Wellnumber .0 Ugtsw er a;^mr |Remarks Well number ay or June level in May range Remarks ..0 --a May orJunen 445 C 45 o U.W S .m u High Low ~ ~ (year) (year) 196 962 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

PAGE 74

SWater level above (+) or below -) land surface .(feet) e Prior to 1961 Highest water )ax Well mber level in Hay range ark "a 0. a' Q High iLow v i (ye (year). 1961 1962 -1961 1962 PASCO COUNTY 13 (313-226-1) F 49 43 1934 C -4.77 -10.1 -8.03 -8.92 3.17 4.41 1959 1945 325-211-I F 227 49 1959 C -9.97 -11.88 -16.93 -22.14 6.98 6.05 1960 1960 PINELLAS COUNTY 13 (808-245-1) F 141 33 1947 C -8.29 -10.70 -8.89 -9.05 1.19 1.54 1948 1950 77 (304-2j-1) F 282 --1947 C -64.41 -68.01 -65.70 -66.63 1.90 2.38 1959660 1949 ito (Su3-246-1) F 230 25 1947 B -26.55 -27.57 -28.11 -29.53 2.11 2.86 1959 1960 (66 (303-247-1) F 195 --1945 B -12.18 -18.34 -12.91 -15.20 5.88 6.76 1951 1953 246 (73d-247-1) F 208 --1945 C -25.12 -28.72 -25.86 -26.42 2.00 2.26 1948 1956 561(750-2'0-1) F 188 --1947 C -1.53 -4.04 -2.90 -3.62 1.53 1.80 1948 1956 663 (758-244-4) F 2.1 81 1954 C -20.12 -24.55 -21.60 -22.38 2.33 3.24 1959 1955 667 (735-243-1) F 843 --1954 C -53.32 -56.68 -54.49 -55.32 2.03 3.03 1959 1955 POLK COUNTY 4 9 (10-136-1) F 195 81 1945 C -1.70 -4.85 -3.17 -5.34 2.76 2.23 1960 1956 43 (79-1538-1) F 643 325 1948 C -63.65 -76.68 ----84.82 7.85 11.93 P 1948 1955 47 (310-136-2) S 67 60 1943 C +111.7 +107.3 +108.5 +107.1 3.5 1.5 M 1960 1956 48 (732-131-1) S 62 59 1949 C +100.8 +96.2 +99.6 +97.3 3.2 1.6 M 1954 1956 49 (743-119-1) S 17 14 1949 C +104.7 +99.1 +101.0 +99.9 2.8 5.8 M 1957 1956 51 (744--13-) H 319 208 1949 C -5.08 -14.20 -10.10 -14.56 8.73 10.15 1958 1955 733-158-311 F 710 237 1955 C -15.88 -28.60 -28.15 -37.04 10.96 13.02 P 1958 1956 802-132-1 F 463 137 1959 B ------7.65 ---0.94 1.97 305-155-2 F 311 82 1956 B -15.16 -22.07 -21.59 -25.64 5.77 6.73 1959 1956 805-155-3 H 72 62 1955 B -12.52 -19.29 -17.86 -21.73 5.26 5.75 1959 1956 306-156-1 S 11 8* 1935 B -3.69 -7.82 -6.09 -8.86 2.82 1.91 *Screened from 1959 1956 8 to 11 feet 806-156-2 1 103 63 1956 B -16.89 -22.73 -24.22 -29.66 8.25 9.71 1959 1956

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S-I * .-Water-level above (+) or below (-) land surface *' r-. -1 "..-..-. (feet) n....... ...-.:i -Prior to 1961 Highest water Maximu Well number S., .4. -Rhearks Well ^. level in May range AU 4j a Oa 0 -r n *o one am; h 1 -I (y; ear) (yea) 1961 1962 1961 1962 PUTNAM COUNTY 28 (925-138-1) F 159 --1936 B -6.2 -9.14 -7.27 -9.81 2.39 1.64 1944 1956 29 (939-138-1) F 300 --1936 B +10.8 +4.47 +5.19 +2.02 2.80 3.24 1936&47 1956 937-153-1 F 300 --1934 B -30.30 -35.65 -29.51 -31.81 1.21 3.68 1959 1957 939-134-11 F 547 113 1958 B +4.26 +3.21 +2.55 -1.75 4.35 3.60 1959 1960 943-152-1 H 124 --1956 B -44.91 -46.66 -43.20 -44.96 1.64 1.40 1958 1957 ST. JOHNS COUNTY 5 (007-123-1) F 350 180 1934 B +43.9 +36.7 +39.6 +35.0 3.9 5.3 1951 1957 8 (005-129-1) F 336 240 1934 B +36.5 +23.7 +26.4 +23.3 3.7 4.6 1947 1957 9 (953-118-1) F 1,400 170 1930 B +34.2 +22.5 +23.3 +19.5 4.0 3.8 1947 1956&57 000-123-2 F 258 --1957 B +4.72 +2.64 ----0.57 4.44 3.24 1959 1957 937-122-1 F 622 142 1958 C -17.30 -18.70 -18.80 -21.49 2.96 3.30 1959 1960 941-129-7 F541 --1955 B +10.1 +7.39 +6.7 +1.52 8.83 6.83 P 1959 1957 947-126-1 F 275 --1956 B -1.55 -6.1 -6.21 -10.86 15.13 6.81 P 1958 1956 ST. LUCIE COUNTY 41 S 17 13 1950 C +28.2 +25.2 +27.4 +26.7 2.5 3.4 H 1957 1956 42 S 18 13 1950 C +26.9 +24.1 +25.0 +24.6 3.0 4.7 M 1951 1955 SANTA ROSA COUNTY 10 (032-648-1) G 197 140 1947 B -80.1 -91.3 -85.7 -88.3 0.9 2.1 1948 1957 102 (021-709-8) S 41 31* 1950 C -4.43 -9.52 -5.40 -6.79 2.32 3.09 *Screened from 1960 1955 31 to 41 feet 035-706-1 G 211 206* 1959 M -82.94 -85.77 -82.84 -83.62 1.59 4.55 *Screened from 1960 1959 206 to 211 feet 040-708-1 G 128 123* 1959 M ------+4.83 +3.78 1.87 3.01 *Screened from 123 to 128 feet; +4.46 feet only May measurement prior to 1961 041-649-1 G 98 '93* 1959 B -56.34 -56.54 -59.35 -56.39 4.41 2.66 *Screened from 1960 1960 93 to 98 feet

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S c -(feet) Sb. Prior to 1961 Highest ater aximu Remar S. 0 0 C ^ May or June level ^ May r --a a. L 1961 1962 1961 1962 TI I (year) (year) 1962 1961 1962 SARASOTA COUNTY 9 (719-225-1) 7 730 101 1930 C +4.51 -5.60 -6.00 -7.98 6.71 7.77 1931 1956 SEMINOLE COUNTY 125 (841-122-1) F 158 74 1951 C -34.18 -41.33 -37.86 -41.77 5.06 3.89 1960 1956 257 (847-113-6) F 206 --1951 B +5.10 +1.40 +2.66 +0.27 3.50 3.06 1953 1956 SUMtER COUNTY 852-201-1 F 125 45 1961 B ------------4.06 0.75 SWANNEE COUNTY 019-249-1 F 138 135 1961 B ----------33.02 2.30 3.14 TAYLOR COOUTY 35 (003-330-1) F 245 189 1946 C -1.00 -28.6 -23.8 -29.1 16.3 13.5 1949 1957 36 (004-331-1) S 35 --1947 C -5.10 -23.95 -10.68 -15.04 6.97 1.89 1948 1957 UNION COUNTY 001-224-L F 256 198 1959 B -------89.54 -92.57 2.21 1.82 007-222-1 F 724 694 1958 C -86.92 -88.45 -88.56 -91.89 3.04 2.02 1959 1960 VOLUSIA COUNTY 29 (911-125-1) F 107 --1936 B -11.86 -18.54 -16.93 -18.57 1.73 1.76 1951 1956 30 (917-128-1) F 180 --1936 B +11.2 +6.7 +9.6 +8.2 3.4 1.8 1959 1948 31 (856-105-1) F 113 --1936 C -4.72 -7.9 -6.33 -7.8 2.99 3.96 1953 1945 32 (919-125-1) F 138 --1936 B -1.2 -4.51 -3.32 -4.94 1.48 2.39 1937 &38 1956 905-113-3 F 351 93 1955 C -0.22 -3.66 -1.66 -2.72 2.86 3.78 1958 1956 909-106-1 F 235 102 1955 B -5.25 -5.87 -7.07 -8.86 2.18 3.41 1959 1955 909-106-4 F 234 102 1955 C -4.95 -7.56 -6.78 -8.95 3.55 5.25 1958 1960 909-106-9 F 496 480 1955 B -6.62 -7.18 -8.17 -9.81 2.01 2.58 1958 1960 910-105-1 F 220 152 1955 C -12.84 -16.65 -14.71 -17.27 5.40 7.61 1958 1960 911-104-4 F 235 115 1955 B -15.72 -20.81 -22.97 -23.21 7.08 5.58 1955 1958 911-104-9 F 500 483 1955 B -10.26 -12.63 -12.07 -13.82 2.31 2.49 1958 1956

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r :-Water level above (+) or below-.(-) land surface a r. 4 w (feet) Wl -+ea w > Prior to 1961 Highest water Maxim mr ell number ay or un level in May range 0 Hay or une 0. 06 0 0 _High Low 4O14 o. w i 1961 1962 1961 1962 *u'| .. (gyear) (year) 61 WAKoULA 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 037-542-2 F 206 202 1961 B ------19.65 1.37 4.83

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