Citation
Ground-water conditions in Orlando and vicinity, Florida ( FGS: Report of investigations 5 )

Material Information

Title:
Ground-water conditions in Orlando and vicinity, Florida ( FGS: Report of investigations 5 )
Series Title:
( FGS: Report of investigations 5 )
Creator:
Unklesbay, Athel Glyde, 1914-
Geological Survey (U.S.)
United States -- Army. -- Corps of Engineers
Place of Publication:
[Tallahassee]
Publisher:
[s.n.]
Publication Date:
Language:
English
Physical Description:
72 numb. l. : incl. fold. maps, tables, fold. diagrs. ; 28 cm.

Subjects

Subjects / Keywords:
Groundwater -- Florida -- Orange County ( lcsh )
Water-supply -- Florida -- Orange County ( lcsh )
Water-supply -- Florida -- Orlando ( lcsh )
City of Orlando ( flgeo )
Orange County ( flgeo )
Well drainage ( jstor )
Water wells ( jstor )
Manholes ( jstor )

Notes

General Note:
At head of title: Florida State board of conservation...Florida Geological survey...
Statement of Responsibility:
by A.G. Unklesbay. Prepared by the Geological survey, U.S. Department of the interior, in cooperation with the Florida Geological survey and the Corps of engineers, U.S. Army.

Record Information

Source Institution:
University of Florida
Holding Location:
University of Florida
Rights Management:
The author dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law and all related or neighboring legal rights he or she had in the work, to the extent allowable by law.
Resource Identifier:
022583587 ( aleph )
01309885 ( oclc )
AER8180 ( notis )
gs 46000011 ( lccn )

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Full Text


FLORIDA
STATE BOARD OF CONSERVATION
S. E. Ri.e, Supervisor rf Conservation
FLORIDA GEOLOGICAL SURVEY
Hrnpan hunter, Direjtr






REPORT OF IIJESTIGATIOYS

NO. 5


GDOUND-WATER CONDITIONS IN ORLAID'O AND VICINITY, FLORIDA



By


A. G. Unklesbay


Prepared by the Geologiial Survey, United States
Departnen. rf the Interior, in cooperation with the
ic',ida Golo.gi-al Survey and the
Corps of Er:;ineers, U. S. Arr.y


1944





4'00,






AGRI- r
CULWRAL
LIBRARY


i'










Contents


Manusiriot
page


Introduction .......... ....... ...... .....................* .....
Topography and drainage....... ................................
Geology.........,.... ..... ...,....... ........... ................ .
Geologin formations ..... ...... .........................
General statement......... .... ....... .................
Eocene.. .......................... ......... ..... .
M middle Eo ene .... ........... ...........................
Onala limestone............ ...... ,. .......... .....
Miocene.a ...... .... .... .. ... .. ........ ... ......
Upper Mviocene .. ... ....... ... .. .... ... ..........
Hawthorn formation................ .. ..........
Pleistocene and Resent......,............... ...........
Structural geology.............. ...... ............. ....
Ground Water... ..., ...... ...... ..... ................... .....


General conditions..........*........ ..... .....
Piezometrie surfane.............................
Springs.... .......... ,.... ...... ..... ...........
Wells. ... .. ................. ...............
Supply wells.. .. 0.............. .... .. ........
Drainage wells................. ...............
Sanitary wells............. ... ...... ........
Exploration of drainage and sanitary wells.......
Method. .... ... .. ... .. ............... ..
Velocity measurements in wells...............
Possibility of pollution,........................
Table 1, Well records.............. ......... ...
Table 2, Water-level measurements.................
Bibliography ..... .. .. ... ... .. ,, ... .. .. .


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4
5
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11
12
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16
19
20
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24
24
26
30
33
49
61












Illustrations


Manuscript
page

Figure 1. Geologil section along line A-A' in Figures 7 and 9....... 62

2. Geologin section along line B-B' in Figures 7 and 9....... 63

3. Geologin section along line 0-C' in Figures 7 and 9....... 64

4. Graph showing fluctuations of water levels in three
Orange County wells.... ............................... 65

5. Map representing the piezometric' surface of Florida
and part of Georgia ...............,... ..,............. 66

6. Map of Orlando and vicinity representing the piezometric
surface (August 1930) and showing locations of wells.... 67

7. Map of Orange County and portions of adjacent counties
representing the piezometri. surface (August 1931) and
showing Incations of wells..,......,.................. 68

8. Map of Orlando and vicinity representing the piezometric
surface (August 1931) and showing locations of wells.... 69

9. Map of Orange County and portions of adjacent %ouities
representing the piezometrii surface (August 1943) and
showing locations of wells,............................... 70

10. Map of Orlando and vicinity representing the piezometric
surface (August 1943) and showing the locations of wells 71

11. Graphic representation of relative velocities of flow at
various depths in five sanitary wells and three drainage
wells ........ ,...... ........ .. ,, ........... ...... 72


--






INTRODJUCTIOr

This investigation was made for the purpose of manping the locations

of the numerous drainage and sanitary wells in Orlando and viinity, to

compile data ron.erning these wells, and to assemble geologic and hydro-

login information relative to the effect of such wells on the ground-water

resources of this area.

The investigation was under the general supervision of 0. E. Meinzer,

Geologist in Charge of the Division of Ground Water, U. S. Geologi'.al

Survey, and Herman Gunter, Director of the Florida Geological Survey, and

under the immediate supervision of V. T. Stringfield and H. H. Cooper, Jr.,

of the U. S. Geological Survey. Captain A. B. DeWolf, of the Corps of

Engineers, U. S. Army, made preliminary arrangements for the investigation

and gave many helpful suggestions.

During the field work much valuable assistance was given by Lt. Col.

J, P. Larsen and Exr. D. D. Riddle of the U. S. Engineers Offie at the

Orlando Air Base. Mr. F. L. Holland, of the Orange County Road and Bridge

Department, supplied information regarding County-owned wells, and aided

in the location of these wells. 'r. A,.B. Herndon, City Engineer, and

,r. Jesse Burkett, of the Orlando City Engineers Offi'e, furnished infor-

mation nonierning City-owned drainage and sanitary wells, and furnished

pumping equipment and operators during the well exploration. Valuable

suggestions were made by Miessrs. J, B.,Iiiller and Fred Eidsness of the

Bureau of Sanitary Engineering, Florida State Board of Health. Well logs

and cuttings of numerous wells were supplied by Mr. Clyde Freeman, of

Libby and Freeman Company, and Mr. J, E. Cousins, of Layne-Atlantii

Company, Mr, .Freeman also gave freely of his time to aid in the location

of many of the wells.. The altitudes of the measuring points








on many wells used for water-level observation were determined by

leveling parties supplied by the U. S. Engineer Department.


TOPOGRAPHY AND DRAINAGE


Orange County may be roughly divided into three physiographic

regions. The eastern part of the County, between the St. Johns and

E-onloikhatnhee Rivers, is a relatively flat lowland ranging in

altitude from about 10 feet along the St. Johns River to as much as

60 feet in the area just east of the Econlookhathhee River. This

lowland contains many swamps and marshy areas. Most of the lowland

is drained by eastward flowing tributaries of the St. Johns River, but

the extreme western part is drained by short tributaries of the

Econlookhat 1hee.

The region west of the Ennnlookhatehee River, extending nearly

to Orlando, consists of a series of northwest trending, parallel,

elongate ridges and intervening elongate low areas. Altitudes in

this region range from 50 to 80 feet. The northern portion of the

region is drained by a branch of the E.onloe.khatn.hee, and the southern

portion is drained into Lake Hart, Lake Mary Jane, and other smaller

lakes

Except for the lowland area in the headwater region of the Wekiva

River, most of Orange County west of the region of parallel ridges

is a rolling upland whinh extends northward and westward into Seminole

and Lake Counties, and southward and westward into Osneola and Polk









Counties. Within Orange County, the upland ranges in altitude from

70 to 140 feet and has a maximum local relief of about 50 feet. This

upland area contains numerous closed depressions, many of which con-

tain lakes or ponds. Some of the depressions, especially the steep-

walled ones, appear to have originated as the result of lo.al sub-

sidenre of underlying formations consequent to the collapse of caverns

and solution channels in the substratal marls and limestones. There

is very little surface drainage in the upland area. vith the exception

of drainage into Howell Creek and Wekiva River, which flow northward

and eastward to the St, Johns River, and of drainage into Shingle and

Reedy Creeks, which flow southward to the Kissimmee River Basin, all

natural drainage is into the closedd depressions, Probably many of

these depressions are drained by seepage through pervious material

into the underlying limestone.


GEOLOGY

Geologic Formations

General


Orange County is mantled by unconsolidated sand and clay, and

although the topography varies from a gently undulating lowland to a

rolling upland, there are very few exposures of the underlying

formations. The closed depressions in the upland, which might be

expected to provide, exposVres, are either filled with water or mantled

Sby sand. Sandy, phosphatic limestone of the Hawthorn formation is











exposed at Rook Spring, about five miles north of Apopka, and red

clays, which are probably residual from the Hawthorn,' are exposed in

several clay pits in the northw~ternr part of the County.

In the nbsenco of sufficient exposures, information regarding

the characteristics of underlying formations must be obtained from

studies of well cuttings. Such studies indic'-to, that the formations

penetrated by wells in Orarlge County and ndj.acent regions are, in

nsconding ordor; middle Eocene limestone, Oc9la limestone (upper

Eocuno), Hawthorn formntiou (lovwr Miocene), rmrl b..ds which n.-y be

of Choctnwhatohoe r : (upper fiocenia), and surficiil sRnd t'nd clay

(Ploistocenu and Rec..;nt).


Eocene


In public-atisns that -:pposar.d prior to 1937, all Eocene iime-

stones penetrated by we31s in central Florida were generally referred

to the Ocala. Although it was genera-lly recognized that the lower

part of the section penetrated contained bads older than typical Ocala

limestone, the term Ocal! had not been restricted, and.the contact

between the Ocala and underlying beds had not boon defined.

Stringfield (1936) stated:

"The lithilogy of the Ocala and the underlying Eocene
rooks is similar, and it is therefore necessary to dis-
tinguish the two units on the basis of a study of the
fossils collected from the well cuttings. No diagnostic
fossils have beeon reported near the contact, and the lower
limit of the Ocala has therefore not been definitely
determined."
















Geologin formations penetrated by wells in Orange County


Age Formation Thickness Charaeter


SPleistomenoe 0-100



S Upper i
Miocene? Chotawhatethee? 30-40


Lower
Miocene


Hawthorn


45-200


.~4.N. 1-cCl


Upper
Eocene


0oalat
Lime stone


0-120
i


Chiefly un.onsolidated
sand interbedded with
ilay. Yields water to
shallow wells.


Light to dark gray shell
marl.


Interbedded marl, sandy
phosphati, marl, .on-
glomerat i l limestone,
^lay, and silty limestor,
Water undar artesian
pressure.

White to nream, porous
foraminiferal limestone.
Important artesian
aquifer.


Vhite to ream, porous
foraminiferal limestone.


Light buff to brown,
porous to dense, re-
irystollized limestone.
Important artesian aqui-
fHr.


Middle
Eocene




i


Undiffer-
entiated


200
!


550-?

!


Ren an !


. : : :. '


I -'


I- --


'- --


-~I -----


: -q .- .- --- "1 1 N = w" ---v : j ,





9


Stubbs (193?) tentatively assigned a middle Eocene age to a zone which

he called the "Coskinolina Zone." According to Stubbs, this zone

".. lies directly below the Ocnla formation" and well cuttings

from it ". .. revealed a predominance of thi Foraminifer Coskinolina

and an absence of typical Ocaln Foraminifera." The forms referred

to Coskinolina by Stubbs are now recognized as Dictyoconus cookei

(Moberg). Cole (1941 and 1942), reporting on wells in Polk and Levy

Counties, used the uppermost occurrence (within the Eocene) of

Dictyoconus cookei (Moberg) to define the upper limit of the middle

Eocone. At the same time, he divided the middle Eocene into seven

zones, the uppermost of which he called the Dictyoconus cooksi zone,

Later (1944) Cole included this zone, with others, in the Lisbon

formation as extended westward from Mississippi and Alabama.


Middle Eooene


Logs of three wells in Orange County that are 1,000 feet or more

in depth indicate that the middle Eocene limestone is at least 750

feet thick and that it may be roughly divided into two distinct

portions.

The lower portion is at least 550 feet thick and consists of

light to dark brown, porous, recrystallized, dolomitic limestone,

with a few irregularly spaced beds or lenses of dense, reddish brown,

cherty limestone. Disseminated throughout this lower portion are

numerous minute inclusions of pyrite, and a few molds and casts of

small molluscs, Owing to recrystallization, however, the fossils

cannot be identified.









The upper portion is about 200 feet thick and consists almost

entirely of porous, white to aream, highly fossiliferous, forami-

niferal limestone, in which Diityoconus iookej is very abundant,

Interbedded through this upper portion are thin beds of light buff,

porous, renrystallized limestone.

The permeability of the middle Eonene limestones allows circu-

lation of water, and the circulating water has formed naverns and

channels which are often encountered in drilling. The recrystalliza-

tion so prevalent in these limestones is due to the precipitation of

material from mineralized solutions and the deposition of this

material in interstices in the rocks,


Ocala limestone


The term, Ocala limestone, is here applied to the Eocene lime-

stone above the top of the middle Eocene as defined by Cole (1941 and

1942). The Ocala is penetrated by most wells in Orange County, but a

few scattered wells, whith appear to have been drilled in sinkholes

or solution cavities, enter middle Eonene beds immediately beneath

the Hawthorn. In such wells the interval normally onnupied by the

Ocala and upper beds of the middle Eocene consists of a heterogeneous

mixture of Hawthorn marl and limestone with irregularly disseminated

small fragments of Unala and middle Eocene limestone (see well 82 in

figure 3). The logs of wells that penetrate the Onala indicate that

it ranges in thickness from. 4 to 120 feet. As the contact between

the Ooala and the underlying middle Eocene limestone appears to be
N.










conformable, the variations in thickness of the Ocala suggest that it

was subjected to surface erosion prior to the deposition of the

Hawthorn.

The O0ala in Oala in Orange County is similar to the Ocala exposed

in other parts of Florida and consists of white to cream, porous,

relatively pure limestone, composed almost entirely of foraminifera

tests, It also contains molds and lasts of larger molluscs and echi-

noids. The permeability of this limestone allows free nirnulation of

water, and the solvent action of the water has resulted in the formation

of subterranean cavities and channels.


Mionene

Upper Mionene


There is some uncertainty regarding the presence of upper Miocene

deposits in Orange County. Cooke and Mossom (1929) do not map, or

mention the oncurrence of, deposits of this age in this area.

Stringfield (1933) mentions the occurrenne of the upper Mimene

Chontawhatnhee formation in Orange County but does not give informa-

tion nonrerning its thickness or area extent.

A few of the wells in the County penetrate 30 to 40 feet of shell

marl immediately under the surfinial sand. This marl contains molluscs

and foraminifera which appear to be contemporaneous with Chontawhatthee

forms, but proof of this age relationship will require detailed exami-

nation of many well cuttings. The shell marl may represent highly

fossiliferous portions of the Hawthorn, or it may actually be a deposit







of Ohontawhatihee time. As the shell marl has been reported in only

a few wells, its area extent is not known. In the profiles ai.ompa-

nying this report (figs. 1, 2, and 3) this marl is tentatively

referred to the Hawthorn formation.


Hawthorn formation


The Hawthorn formation, whinh unionformably overlies the O'ala

limestone, consists of a series of sandy, phnsphatin marl beds and

interbedded layers of limestone. It ranges in thickness from 45 to

nearly 200 feet. The thickness is dependent upon the surface elevation

and the irregularities in the surface of the O.ala.

The lower part of the Hawthorn is predominantly a light buff to

greenish gray, silty, granular limestone whioh ncntains many small

brown phosphatio grains. This limestone appears to be interbedded

with thin layers of sandy phosphatin marl,

The upper part of the Hawthorn consists of alternating beds of

gray, sandy, phosphatin marl and very fine, thinly laminated, al-

nareous noly, A well indurated, coarsely nonglomeratin limestone is

penetrated at irregular intervals in many of the wells. This non-

;lonerate consists of a gray limestone matrix .nntaining quartz sand,

phosphate pebbles, fish teeth, and rounded, solution-pitted fragments

of bluish-gray limestone.

The only indurated rook exposed in Orange County is a nart of

the Hawthorn formation. Rook Spring, about five miles north of

Apopka, issues from a nave-like opening at the base of a vertical









bluff in which a thickness of about 15 feet of buff to brown, sandy,

phosphatic limestone is exposed. Wekiva Spring, about three miles

northeast of Apopka, also issues from an opening in the Hawthorn

formation, but the opening is belew the water level. Elsewhere in

the northwestern part of Orange County, rod clays, which are probably

residual from the Hawthorn, are exposed in several clay pits.

Some of the sand and limestone beds of the Hawthorn formation

are fairly permeable and will therefore yield small quantities of

water to wells. However, the Hawthorn also contains relatively im-

pervious layers of marl and clay which act as confining beds for the

artesian water in the Oola and middle Eocene limestones. Although

Rock Spring and Wekiva Spring issue from openings in the Hawthorn,

this formation may not be the source of the water. Probably the water

flowing from these springs comes from the Ocala aid middle Eocene

linmstones, and flows to the surface through crevices and solution

channels in the Hawthorn.


Pleistocene and Recent


Overlying all other formations in most of Orange County and large

portions of adjacent counties is a covering of unconsolidated sand

interbedded with clay, which ranges in thickness from a few inches

to nearly 100 feet. The sand yields small quantities of water to

shallow driven wells,









Structural Geology


Orange County lies on the southeast slope of the Ocala uplift,

where the general dip of the Ocala and middle Eocene limestones is

southward and eastward. Structural features cannot be determined from

the altitude of the upper surface of the Ocala because this surface is

irregular owing to solution and erosion. However, the top of the

middle Eocene is more regular, and its shape, as determined from

studies of well logs, suggests that a minor structural basin exists

in the vicinity of Orlando. Other minor .structural features may exist,

but they cannot be determined until more subsurface data is obtained.


GROUND 'ATER

General Conditinns


Small supplies of vwter are obtained from shallow wells ~fding

in the surficial sand, but the water from these wolls is often colored

and is susceptible to pollution by seepage from the surface. Also,

some wells obtain moderate quantities of water from pervious layers of

the Hawthorn formation. However, the principal water-bearing forma-

tions of Orange and adjacent courtties are the Ocala and middle Eocene

limestones.

The water in the Ocala and middle Eocene limestones is under

artesian pressure, that is, when the confining beds are perforated

it will rise in the well to a level higher than the top of the water-

bearing bed. In the lowlands along the St, Johns River, in eastern

Orange Uounty and northeastern Seminole County, and around the margins









of Lake Apopka, the water in wells penetrating the Eocene limestone

will rise above the land surface. Also water in wells penetrating

these limestone will rise above the surface in the lowlands of

Oscenla County in the headwater region of the Kissimmee River. Some

of the drainage wells in OrlandA and vicinity have flowed during

periods of heavy rainfall. In the summer of 1930, well 47, a drainage

well nortbwest of Orlo Vista, began to flow and flooded the highway

to a depth of about two feet. At the same time, some of the wells in

southeastern Orlando ceased to drain water and allowed streets to

become flAoded.

Measurements made during th3 last fourteen years show that the

water levels in Orlando and vicinity fluctuate considerably. AFctors

contributing to these fluctuations are: variations in rainfall in

areas where the formations are recharged naturally or artificially

through wells; changes in the rate of pumping from wells; and changes

in atmospheric pressure, -FltUuaxtions of the water levels in three

wells in Orange County are shown graphically in figure 4. In this

graph, measurements of water levels aro indicated by small niroles,

and the probable general trends are represented by broken lines. The

rainfall values shown on thls griph represent averages of the monthly

totals re neded at Weather Bureau Stations at'Orlando and Orlando Air

Base in Orange County, and at Lakeland, winter Haven, and Lake Alfred,.

in Polk County. These rainfall stations were selented be~ausa the

water-level flutuations in Orlando and vicinity are related to

variations in rainfall not only at Orlando but also ova the natural









recharge area whinh extends over Polk County and parts of Orange,

Highlands, and Lake Counties.

The highest stage for which water-level measurements are available

occurred in the summer of 1934, and the second highest in the summer

of 1930, The lowest stage for whi-h measurements are available

occurred in the spring of 1933, but measurements made during the

summer of 1943 indicate a stage nearly as low as that of 1933.

Automatic water-level recording instruments have been installed

on well 47, near Orlo Vista, and on wells 923 and 224 it the Orlando

Air Base. It is intended that these recorders be maintained indefinitely

to obtain continuous records of water-lnvel fluctuations.


Piozomotrin Surface


The height to which water will rise above mean sea level in

tightly cased wells penetrating the Ocala and mid-Eocene limestones

in Florida and part of Ueorgia is shown by the contour lines in

Figure 5. The imaginary surface represented by those contour lines

is called the piezometrin surface. In order to plot a map of the

piezomotric surface for a given area, measurements of the static water

levels, in feet above or below a fixed reference point, are made on

a number of wells throughout the area. The altitudes of the reference

points are determined and the water-level measurements are added to

or subtracted from these altitudes to obtain the altitude of the water

levels in the wells. These water-level altitudes are then used as

controls in plotting the contour lines representing the piezometric

surface,









As the water levels fluctuate the piezometrin surface changes

in shape and altitude, and when represented for any one time shows

only approximately the conditions for any other time. Although the

general form of the surface is constant, variations in local conditions

may cause some change in details from time to time. In general, areas

where the piezometric surface is hih are regarded as areas of recharge

and areas where it is low are regarded as areas of discharge. The

horizontal movement of the water in the aquifer is in general from

the hihi areas of the piezometric surface toward the low areas in

directions normal to the contour lines, Thus it ncn be seen from

Figure 5 that the movement of the water in Orange County is in general

toward the northeast..

The lat region of Orange County is part of a large recharge

area which extends over most of Polk County and into the lake region

of northwestern Highlands County and south-eontral Lake County.

Water-level measurements have been made in Orlando and vicinity

at various times in the past. From measurements made by Stringfield

in 1930 and 1931, and measurements made during this investigation,

maps representing the piezometrin surfaces for May 1930, August 1931,

and August 1943 have been plotted. A study of these (Figs, 6-10)

shows that the general shape of the piozometric surface is persistent,

but that it varies from time to time in altitude and in local details.

Anotable eharanteristic of the piezometric surfaces shown in Figures

7 and 9 is tle shelf-.like feature in the vicinity of Orlando. This

feature results from local recharge through the drainage wells.









The piezometric surface for August 1930 is representative of

high water levels, and its most striking feature is the mound in

southeastern Orlando. This mound is undoubtedly due to recharge through

drainage wells and lakes,

Figures 7, 8, 9, and 10 represent the piezometric surface as of

August 1931 and August 1943. Its general shape at these times was

approximately the same except that in 1931 was higher. The mound in

southeastern Orlando, so prominent in 1930, was not present in 1931

and 1943, but a anall spur in the same area indicates that the shape

of the surface is influenced by local recharge even at tim3s of low

water levels.

The Ocala and middle Eonene limestone have.bi-n separated

geologically on differences in texture, color, and fossil content.

Hydrologically, however, they appear more or less as a unit, that is,

the water levels in wells drilled into the upper part of these lime-

stones rise to the same heights as in walls drilled to deeper horizons.

In order to determine and study the relationship between the

water in upper and lower portions of the Eocene aquifer, two wells

were drilled at th3 Orlando Air Base. One of these, well 223, is

453 feet deep and is cased to 180 feet; the other, well 224, is 1,000

feet deep and is cased to 569 feet. Records from automatic water-level

recorders installed on both wells indicate that the water in the two

wells rises to the same level, and that the water levels are affected

similarly and simultaneously by the pumping of nearby walls. This

shows that the upper and lower parts of the aquifer are under equal









artesian pressure and that there is probably free vertical exchange of

the water within the aquifer.


Springs


Two large springs, whiih yield water from openings in the Haw-

thorn formation, m.ur in Orange County.

Rook Spring, about five miles north of Apopka, in the north half

of section 15, T. 20 S., R. 28 E., is one of few springs in Florida

whinh issue from an opening above the water surface. This spring

issues from a nave-like opening at the base of a 15-foot vertical

exposure of brown, phosphatio, sandy limestone, and flows into Rook

Spring Run and thenne into the Wekiva River. The discharge of the

spring is about 50 to 60 second feet.

Wekiva Spring, about three miles northeast of Apopka, in the

northeast portion of section 36, T. 20 S., P. 28 E., issues from an

opening below the water surface and flows into the W 'kiva River. The

discharge from this spring is about 65 second feet.

Sanlando Spring is smaller than either of the springs mentioned

above. It is in Seminole County, near the border between sections 2

and 3, T. 20 S., R. 29 The opening of this spring is below the water

surface, and overflow from the spring basin flows into the Little

Wekiva River.








Wells


Wells have been constructed in Orange County for two purposes:

to obtain water and to dispose of water. A few wells hqve been non-

strunted to serve both purposes, that is, they are used to obtain

water for irrigation during dry seasons and to drain surplus water

during wet seasons,


Supply Wells


With the exception of a few wells ending in the surfinial sand,

and a few drawing water from the pervious layers of the Hawthorn

formation, the supply wells of Orange County are drilled into the

c0ala and mid-Eo ene limestones. Most of the privately-owned supply

wells used to obtain water for domestic and irrigation purposes are

less then 200 faet deep. tells used for industrial or municipal

supplies range in depth from 200 to 1,000 feet.

During the present investigation emphasis was placed on the

collection of information relating to drainage and sanitary wells.

Annordingly, the Table of Well Reamrds (Table 1) an ompanying this

report contains Information nn only a few supply wells.


Drainage Wells


Annording to Sellards (1908, p. 62-63 and 1910, p. 71) and

Stringfield (1953, p. 21), the first drainage well in Orange County

was drilled about 1904. In April of that year, a sinkhole (probably

Lake Greenwood), whi^h had previously carried away surplus surface

water through its connections with underground drainage channels,








became logged, and a considerable area in southeastern Orlando was

flooded by heavy rains., After several unsurccessful attempts to reopen

the sink, a drainage well was drilled as an experiment, In August,

a two-inch test vell was drilled, and it proved suteessful enough to

warrant the construction of larger wells, The next year two more wells,

one 8-innh and one 12-innh, were completed and these drained a large

part of the flooded area. Those wells, however, were not sufficient

to drain the area completely, so in the winter of 1906 two more 12-inch

wells were onstruited, and by February 1907, a fourth 12-inch w-ll

had been completed, By the end of March 1907, the water was almost

bark to its normal level.

In the following years many wells were drilled for drainage, not

only to dispose of surplus water during storms, but also to lower and

control lake levels, and to drain lowlands rmd swamps to make additional

land suitbblo for cultivation. Sanitary wells were also constructed

to drain away the effluent from septic tanks.

The most intensive period of drainage well construction was

during the years 1926, 1927, and 1928, but such wells were still being

drilled in 1943. In August 1943 at least 182 drainage wells were in

operation in Orlando and vicinity. These may be grouped as follows':

90 Storm drainage wells, owned by the City of Orlando.

40 Storm, swamp, and lake drainage wells, owned by
Orange County.

12 Drainage wells at the Orlando Air Base.

40 Privately- and munintipally-owned .drainage wells used
for various purposes, including at least one used
to dispose of citrus parking waste.









The wells used for storm and swamp drainage range in depth from

120 to 1,000 feet, and are vased to depths ranging f'om 74 to about

400 feet. They range from 5 to 18 inches in di'mater,

The range of depths to which drainage wells are drilled and

cased shows that surface water is being introduced into a considerable

thickness of Ocala and mid-E~cene limestones and into the lower portion

of the Hawthorn formation Drillers' records indicate that some of

the wells end in open cavities and that others penetrate only permeable

limestone, In either case the drained water mingles with, and becomes

part of, the ground water, and moves in the direction of the slope

of the piezometric surface. At a time when a large quantity of wat.r

is entering a well, a slight mound is created in th3 piezometric

surface in the immediate vicinity of the well so that the drained

water moves for short distances in all directions from the well.

The capacity of a drainage well is dependent upon the diameter

of the well, the permeability of the receiving formation, and the

head under which water flows into the well. The cnpacities of the

wells in Orlando and vicinity range from less than one hundred to as

much as several thousand gallons a minute. Well 50, at the southeast

edge of Lake Lawne, is reported to have a cnpnaity of 9,500 gallons a

minute (Stringfield, 1933, p.' 22),








Si S -anitary Wells


The term, sanitary well, is used to designate a well which receives

sewage or the effluent from septic tanks or sewage treatment plants,

There are at least eighteen sanitary wells in Orl-ndo end vicinity.

Seventeen of these, owned by the City of Orlando, are used to drain

septic tanks at cloven scattnred localities in the City. Records of

total depths and depths of casing are not available on 41 these wells,

but those for which rnnords are available range in depth from 231 to

863 feet, and are cased to depths ranging from 67 to nearly 400 fe3t.

The casings in these wells range from 8 to 12 inc.hes in diameter.

In addition to the seventeen wells owned by the City, another

owned by the Army receives effluent from the sewage treatment plint

of the Orlando Air Base. This well is 431 feat deep 9nd is basedd to a

depth of 183 feet with 10-inch casing.

As these sanitary wells are widely separated, and as they range

greatly in total depth and depth of easing, it is evident that septic

tank and sewage treatment effluent is boing introduced into a con-

siderable area and thickness of Ocilq and mid-Eonene limestone. A few

of the wells v ich are not deeply icsed probably introduce some effluent

into the lower part of the Hawthorn formation.








Exploration of Drainage and Sanitary Wells


One of the most frequently asked questions connerning drainage

and sanitary wells is "Where does all the water go?" The water entering

such wells mingles with, and becomes part of, the ground-water supply,

but it is desirable to know at what levels the water is being absorbed

by the underlying formations. Although drillers' records show how much

of a well' is cased and how much is uncased, no information has been

available to indicate the depths of the strata that actually absorb

drainage water and sewage effluent. To obtain such information eight

wells in the vicinity of Orlando were explored with a deep-well current

meter,


Method


The deep-well current meter used consists of a srew-propeller-

type rotor mounted, with its axis vertical, on a pointed bearing

inside a iylindrinal brass case. The upper end of the rotor axis is

an eccentric shaft ihieh touches a contact wire each time the rotor

revolves, thus opening and elosing-an electric circuit. The contact

wire is attached to a binding post which is insulated from the meter

case, The meter is enclosed in a five-foot length of three-inch pipe,

which protects it and prevents it from being carried into scverns by

the velocity of the water, The assembly is lowered into the well at the

end of a double-conductor cable.. This cable consists of steel wire

wrapped around a orje of insulated popper wire. The .cpper wire is

connected to the binding post on the contact chamber and forms one
*\. .* *.









side of the electric nirnuit; the steel wire is connected with the

three-inch pipe, whinh is in enntqnt with the ease of the meter, and

forms the other side of the 'nirnuit. The electric current is provided

by a dry-nell battery, and a headphon connected into the circuit pro-

dunes sound eash tima the rotor revolves. Water flowing through the

meter will cause the rotor to revolve at a rate proportional to the

velocity of the water,

In use, the metar assembly is lowered into a wall a few feet at

a time, and the revolutions of the rotor at the several depths are

timed with a stop wateh. The rate of revolution at the various depths

indicates approximately the relative mean velocities of water at those

depths. The interpretation of the observations is based on the ex-

pression, q = av, in which g is the quantity of water per unit of time,

a is the' ross section area of the well, and v is the mean velocity of

the water passing through the well. Throughout that portion of a well

which is lined with tight easing of the same diameter the velocity

should be the same, inasmuch as the quantity of water moving through

that portion must be the same at all depths and the crossrsecttion area

is constant. However, in the uncased portions of a well differences

in velocities nt various depths may be due either to differences in

the cross-seation area of the well or to differences in the quantity of

water moving through it.

The observed relative velocities in drainage and sanitary wells

are not as consistent as those in flowing wells because the Aurrent

meter ensemble wab designed to measure upward flow of water instead of

dowhnwrd flow, and because the fall of water from the mouth of the well

apparently produces turbulence to a considerable depth,








A progressive decrease in velocity with increasing depth indicates

that the water entering the well is being absorbed by the surrounding

formations. When a level is reached below which the velocity is non-

sistently zero, it seems reasonable to assume that the water entering

the mouth of the well is not passing below that level and must there-

fore be leaving the well and entering the formations above.


Velocity Measurements in Wolls


During this investigation, five sanitary wells (Nos. 9, 19, 80,

110, and 146c) and three drainage wolls (Nos. 91, 93, and 94) were

explored, and the results are shown graphically in,Figure 11. In this

figure nre Ehown the reported drilled deoth of each well, the reported

depth of easing,' and the velocities of the current meter plotted acnord-

ing to depth. In all cases, it was impossible to exnlore the total

drilled depth because in some wells obstructions prevented the passage

of the current meter, and in others the lower portion was apparently

filled with sediment. However, in wells 80, 93, and 94, pra.ti.ally

the entire drilled depth was explored.

teoll 9, in southeastern Orlando, at the southwest edge of Lake

Davis, receives effluent from a septic tank. This w311 is reported

to have been drilled to a depth of 811 feet and cased with 8-inch

easing to a depth of 67 feet. At the time of exploration, an obstruc-

tion was eneountere- in the well at a depth of about 610 feet so that

no volocity measurements were made below that depth, A'gradual decline

in ;'velocity was noted between depths nof 60 nd 160 feet, and below

1.60- feet the~velocity wa consistently. zero t .appears, therefore,








that the septic tank effluent entering this well is being absorbed by

the formations between altitudes of 10 feet above and 90 feet below

sea level.

Wells 19 and 146' are on the south side of South St., west of Farn

Croek, at the Jouth Street Imhoff tank of the city of Orlando. With

two other wells, they receive effluent from this tank. Well 19 is

reported to be 865 feat deep and cased to 408 feot with 8-in-h casing,

The downward flow through the easing of this well was apparently

irregular, probably due to changes in the diameter of the casing, or

to defeats in the casing resulting from norrosion. Below the bottom

of the casing, the velocity was irregular but gradually decreased to

zero between the bottom of the casing and a depth of 468 feet and

remained so through the rest of the depth explored. Thus, it seems

that this well is, introducing septic tnnk effluent into the limestone

in the interval between 325 and 400 feet beloW soa level. If the

irregularities in flow through the casing are due to defects caused by

corrosion, there may also be some effluent leaving the well above the

bottom of the casing.

Thedepth of well 146c and the depth to which it is cased are not

definitely known, but it is reported to have been drilled to about 700

feet. This well is located about 50 feet south of well 146b, and its

mouth is at a lower elevation than the mouth of that well. These two

wells are. connected by underground cavities or channels in such a way

that when well 146b is receiving large quantities of effluent well 146c

becomes filled to overflowing, and the affluent flows upward through

4t and drains through a'ditch into Fern Creek and_ thence into Lake







Gra'nwood, whiih is drained by a group of five wells. At the tinm of

exploration, this upward flow was taking place in well 146n, and the

flow measured was upward instead of downward. Howiver, from a depth

of 130 feet down to 215 feet, where an obstruction was encountered,

there was no flow. The lank of flow at this depth is believed to indi-

cate that the formations below 130 feet are not receiving effluent in

appreciable quantities.

Uell 110 is in west-central Orlando, near the intersection of

Amelia Avenue and .'estmorelnnd Drive. It is one of two wells in this

locality used to drain a septic tank located beneath Amelia Avenue. This

well is 500 feet deep and is cased to a depth of 131 feet with 12-inch

casing, Below the bottom of the casing, the velocity of downward flow

varied greatly, probably due to variations in the diameter of the well.

However, it became zero at a depth of 165 feet and remained so through

the rest of the explored depth,. indicating that the effluent introduced

into the well is entering the formations in the interval between 25

and 60 feet below sea level.

Well 80 is on the north edge of a small lake northwest of the

'Orlando Air Base Sewage Treatment Plant, and receives effluent from

this plant. It is 431 feet deep, 10 inches in diameter, and eased to

a depth of 183 feet. No progressive decrease in velocity was noted in

this well, Instead, the rotor of the meter continued to revolve

throughout the explored depth and varied through a wide range near the

bottom. Accordingly, it. is probable that the entire uncased portion of

this well is introducing sewage plant effluent into a 825-foot thickness

of Oeala and mi dle iEoneeto imstone between 75 and 300 feet below sea

1evo;




29


Well 91 is at the Orlando Air Base, in the east side of A Avenue

at the intersection of Sixth Street. It is 800 feet deep, and the 6-inch

easing extends to a depth somewhere between 150 and 180 feet. This well

is used for general drainage of streets and storm run-off. The veln.ities

observed within the casing of the well were mu.h more irregular than in

other wells. This may have been due to the fast that the diameter of

the sasing was only slightly larger than that of the meter tube, so

that changes in the position.of the meter assembly may have caused the

flow to be more irregular or turbulent. An obstruction was encountered

at a depth of 312 feet, and some flow was indicated at this delth.

Hence, the lower limit of the downw-rd movement of the water is below

the depth of 312 feet, which is 215 feet below se. level.

Well 92, also at the Orlando Air Base, is at the northwest corner

of A and First Avenues, about 250 feet south-southwest of well 91. Like

well 91, this well receives general street drainage and storm run-off.

It is reported to hnve been drilled to a depth of 350 feet 'nd is

cased with 12-inch casing. The depth of the easing is not kno.n, but

changes in velocity observed during the exploration suggest that it

is about 175 feet, Below 175 feet, the velocities observed were

irregular, and no zone of zero velocity was found in the explored portion

*of the well. As an obstruction was encountered at 319 feet, the lower

limit of flow in this well is not. known.

Well 94 is on the.northwest edge of a snill lake, north of the

Qrlando Air Dase Laundry. VWste water from the laundry is emptied

into the lake, which in tura overflows into the well. This well is

482 feet deep and is cased for 221 feet with 8-inch casing. Exploration








revealed a progressive decrease in velocity from a depth of 200 feet

to 390 feet, below which it remained at zero. Seemingly, therefore,

this well is introducing laundry waste into the surrounding formations

through an interval between the altitudes of.100 and 275 feet below

sea level.


Possibility of Pollution


The possibility of pollution of the ground-water supply by the

use of drainage wells has been mentioned by Sellards (1908, pp. 64-67,

and 1910, p. 169) and Stringfield (1933, pp. 22-23).

In regions underlain by porous or cavernous limestone, the use

of sinkholes or drainage wells to dispose of sewage or surplus surface

water constitutes a threat to supply wells drawing water from the

limestone. Water which drains from roadside ditches or street gutters,

and especially that discharged from septi. tanks, is almost certain

to be polluted, and the freedom of circulation alloed by cavernous

limestones may permit such waters to enter supply wells without being

subjected to filtration, This threat is especially great for wells

located down the slope of the piezometric surface from the drainage wells.

Recent outbreaks of typhoid Fever and gastro-enteritis have

resulted from pollution of private and municipal water supplies in

Fillmore and Olmstead Counties, Minnosota. The pollution of these

supplies was traced to sinkholes and stone quarries through which

partly treated sewage and excreta were being introduced into the

limestone aquifer which yielded water to ths supply wells (Kingston,









1943), Several rcses of pollution In Orange County, seemingly due to

drainage wells, have been reported but are not supported by fartul

data,

The purpose of this investigation has been to obtain geologic

and hydrologic information relating to the possibilities of pollution.

Further chemical and ba^teriological investigations are desirable, and

it is expected that the State Board of Health will make such studies.

There has been a somewhat prevalent idea that all the drainage

wells in Orange County were relatively shallow nnd that therefore deeper

wells should be safe from pollution. Data herewith presented indicate

that drainage wells as deep as 1,000 feet, and sanitary wells exceeding

850 feet, are in use. The depth of casing in these wells ranges from

67 to 400 feet, Exploration of several wells indicates that water

from them is entering the surrounding formations at depths ranging from

70 to at least 400 feet, and that in the deeper wells it may go to

greater depths.

Geologin studies hnve indicted that the formations penetrated by

the drainage wells are porous and contain ramifying solution channels.

The interconnected pores and solution thannals allow free circulation

of the water. Equal artesian pressures in the lower and upper portions

of the aquifer will permit interchange of water batwemn the upper and

lower parts of the formation. The general horizontal direction in which

this water moves after entering the aquifer is determined by the shape

of the piezometric surface.

The piezometric surface in Orange County has a general northeast-

ward slope. However, the ioncentration of drainage wells in and around










Orlando appears to contributee to the res-hrge in sufficient quantities

to niuse a lonal flattening of this surface, and at timos of heavy

rainfall, aresat a small mound in it in southeastern Orlando. Within

the flattened area of the piezometri. surface, there is pronbbly free

intermingling of the drainage water with the ground water, and from

this area the water moves down the slope of the piezometrie surf ae.

Therefore, it seems thet the areas most susceptible to pollution qar

those surrounding the wells, and adjacent areas down the slope of the

piezometri" surface. VWells drilled in the regions up the piezometrie

slope from the areis in whiih drainage and snlitary Jwells re concen-

trated should be relatively froe from pollution.




TABLZ 1, WXLL RECORDS
. ":' .... N ORANGE COUNTY
., I ,I .


-q


3

009
ru
0c
.0iP


I
'-
0.
'.


S
0"
0a
SI
440
0.0
0
0.


---n: iPpt-


0-I o*

4A


l
A -


~b
5-


lo'
jS

lit8
0. Q ~a


I I I I -~ I~- .


I. 3. matthws

7. Matthews


r. Z. Baehn


*Orsndo,. 15 orth. sid:ofr.vanw.
!w*.; 100"fOO't e t of Orang Are.

.claM o, a.Borth. ido or Vintr
PrAfAe,:o0o-r feet we t ofr
orAnge A*e.

;rlatno, in tLd orf Dad. St.,
100 feet nortb of PrInaoton Ave.

Orlado,, mouth edge of South St.,
4it latersetlon o Of arlu. t.

'Orlando, south t arner of
DiisrlLoa d.. Carter St." .

Orlndo, mst side of Pfrroaore
:t. 100. fet north of Los St.

Orlando, northeast oome r of core
Ave. and Pearrrure St.

;OrLando,. north aide of uWashington
St., about 40 foot east of
X ,zWeolq Ave.

Orlando, outbst. aide of Lake
Mari o,-bet n Bookrilla and
8rnolLi Ste.

Orlando, southeast edge of Lake
Charoke, at Cherokeeb Drive and
oeoMla St.:

Orlando, in Harding Ave., iust
wast of Delaner St.
I .
Orlando, northeast edao of Lake
Davis, betwn Deanels and
Smerlin 3tse,

Orlando, northeast corner, Boon
Ave.' and Long St.

Orlando, northeast corner of
Princeton Ane'. and. Northuberland
St. ."' '

Orlando, west side of Coreoll 8t.
and Sprce Ave.

Orlando, 'jut seat of ola Drive,
south of Pins St.

Orlndo, near enter of north edo
.of Laksiorwas.


SOrl ndo, northeast edg of Lak ofl
the Woods.


city of Orlado

City of Orlando


City of Orlando

City of Orlando.

City of Orlando

City of Orlanlo

City of Orlando

City of Orlando


City o o Orando


City of Orlando


City of Orlando

City of Orlando


City of Orlando

City of Orlando


City of Orlando

City of Orlando


City or Orlando


City of Orlando


Mu. 1937


Jan. 1927




Feb. 1926

may 1926




Nov. 1986


June 1930


Dec. 1924


July 1928

Dee. 1929


I 1989

Dec. 1926


Feb. 1927

Aug. 1927


Sept. 1926


May 1926


409*
dor

495


414

432

400

217

300

e348



811


345


483


364


377

405


431

465


430


353


as


16










11

26

17


10


12 Top of ron anihole ria, level with
street.

12 Top of Iron manhole tin, level with
stret.


10 & 12 Top of Iron anhole r1t, level wit
street.

5 Lower edge of. strailftdge laid
oer mhole, leel with driveway.

12 Top of ron manhole rim, level wit
street.

12 Top of iron manhole rim, level wit
sidewalk.

12 Top of iron manhole riL, level wit
land surfeoe.

1 Top o iron manhole rim, level wi
service station driveway.


8 Top of iron hole ria, level with
land surfoae.

10 Top of iron manhole rim, level witr
land surface.


I1 Top of Iron manhole rim, l vel with
street.

12 Top of concrete suhol.rim, level
with top ofr street curb.

12 Top of Iron manhole rim, level with
street.

12 Top of Iron manhole rim, level with
street.

12 Top of Iron manhole rim, level with
street.

12 Top of iron ihnbols rim, level with
10 top of street curb.
a
12 Surfaoe.
10
8

12 Top of iron oanhole rim, level with
10 land surface.


95.95

97.5


97.81

105.33

104.3

106.50

107.42

103.96


73.54


74


100.8

73.41


101.03

96.16


Drainage



Dralnaage
Drainage

Drainage

Drainage








Drainage
("pti* taA





Drainage
Driage

control)

Drainage

Drainage
(Lake
control)







Dralnage
Drainage


Drainage




Drainage
(Lake
control)


I


7. 3aehn

7. Raehn

J. Raehn


p.


158

90


67


83


153

77


113

120


158

213
285
417

129
370
386

100
253


21

5


3

7


4

1


None


1


e. Raehn






F. 7. Reehn

Henry Raehn


Henry bushn








P. :. Raehn


J. R. Matthews


7. J. Raehn


706 NO. 1-139.




























(A)





Tabl 1o COmt',.-


Measuring Pozint 5

*0 -
N0 15: -8 lo a.-
:4 0. OL a 0 I ,.4

4& R 1
-t. 0 U. 0B q. ^1 4< 4 605S.0 5
4 1 I Oe 58 I O 44 6 o 8
-2 5s fi .s 4 s
S AS 4I 5. 5 l 00l
,, ________________________________ S_________-4< &S________


Oarledo, south ide of South St.
at laer Creek.

Orlando, in south side of Oregon
Ave. at atersation of Spokae St.

Orlavdo, nortbhat of Sunset Lake,
aouth of South St. extended

Orlando, east aide of Zake Lan-
easter, .in lnmn on oast side of
atrt, 1051 Lanoaster Dr..

Orlando, swet side of Atlanta Av.,
aorth of Mller Ave. extended.

Orlando, about 25 eeet east of
aonfae St. at intersection of
Ouava Ave.

Orlaado, in north aide of Jeffer-
son St., Just wet of Trry St.,
10 eet south of Io. 140.

Orasndo, in ditch on east side of
Barriso St.; about 500 oeet south
of Par Ave.

Orlando, in east aide of Shine St.
just south of Marks St.

Orlando, in south aide of Minne-
aota Ave. just east of Mill St.

Orlando, northwest portion of
intersection of Helen St. and
Winter Park Ave.

Orlando, east aide of Weatmoreland
Dr. opposite Jefferson St.

Orlando, south edge of Sturtevant
St. joat est of Lucerne Terraoe.
Orlando, south side Lake Davis at
Brookvilla St.

Orlando, in aouth aide of Steele
Ave., about 45 feet east of
Aaherst St.

Orlaado, center of Westmoreland
Dr. at northernaoat intersection
of Tale Ave.

e atile weat of Pineoastle, north
side of road. Southwest corner,
MS see. 23, T. 23 S., R. ,9 .


City of Orlando

City of Orlndo

City of Orlando


City of Orlando


City of Orlando

City of Orlando


City of Orlando


City of Orlando


City of

City of

City of


Orlando

Orlando

Orlando


City of Orlando

City of Orlanto

City of Orlando


City of Orlando


City of Orlando


Orange County


J. Maehn

J. Reaha

7. Raohn


7. 7. Raehn


7. T. Raehn

7. R. Matthews






J. R. Matthews


7. Baeha

J. Raehn

R. Matthews


3. Raehn

7. Reehn

7. Raehn
J. flaeha


7. R. Uatthews


J. R. Matthews


Apr. 1926

Oot. 1926


Oct. 1926


Oet. 1926

Oct. 1926


Dec. 1926


Mar. 1926


Apr. 1926

July 1926

Sept. 1926


Mar. 1926

Feb. 1927





Feb. 1927


Nov. 1926


0ot. 1927


865

315

215


183


228

408


405


303


219

469

169


408

451

415


439


454


160


400

113

60


150


146

124


106
180

100


124




180
125

120


109




102
387

97
390

172
292

123


Surface.

Top of iron manhole ria, level
with street.

Top of iron anhole rim, approxi-
mately 1.5 feet above land surface

Top of iron aanhole rim, level
with land surface.


Top of iron manhole ria, level
with land surface.

Top of iron manhole rim, 0.5 foot
below land surface.

Top of iron sanhole rim, level
with street.

Surface.


Top of iron manhole rim, level
with street.

Top of Iron manhole rin, level
with street.

Top of Iron manhole ria, level
with street.

Top of iron manhole ria, level
with top of street ourb.

Top of iron manhole ria, level
with surface.

Surface.


Surface.


Top of iron manhole rim, level
with street.

Top of Iron manhole rim, level
with surface or road.


74

104.93





94.22





















97.89





99.15









98.50


97.35


None











4

2









4

4





3


8

None


1


5


Drainage

Drainage

Drainage
(Lake
control)

Drainage
(Lar
control)

Drainage

Drainage


Drainage


Drainage

Drainage

Drainage


Drainage

Drainage

Sanitary
;Septic tant
drainage)

Drainage


Drainage


708 No. W-53


2Trl





'ablo 1 Cont'd.-


M $ g I _____ easuring Point ____ .
U .4 go $1 O%

o S a ow C- a e as.
M a os n
'1 oc e ^^ 1 s.s t~
o A ,0 a- a s F4
0 a 0 ) a s
4.2 S Ijk
*0 a 34j
as *w.


1 li mes southmwst of Pineeastl,
south side of road. MI* mec.
26, T. 85 S., R. 29 X.

2 allies sothnest of Plnoeastle,
south side of road. Rij,
see. 27, T. 83 S., R. 29 Z.

1/8 *al west of Orlando city
limits, west aide of rod.
*_x rir, a-. 33, T. 23 s.,
R. 9 3.

4 alleos outhwest of Orlando,
In drainage ditch 1,180 feet
southeast of road. s jP Sj
aeO. 8, T. 2 S., R. 29 X.

t dles southwest of Orlando,
est aide of road. Slf, seo.
5, T. 23 ., R. 89 3.

m8 mles aouth of Pinoeastle, north
side of road at south edge of Lain
Searhead. S ft see. 85, T. 8
.8 29 3.

it ales east of Conway, west aid
of road, east edge of Lake Barber.
xnr.wi, as0..9, T. 3 S.,
R. 30 X.

1/4 mile north of Conmay, 25 feet
west of Highway 29, just north of
Prederioa Drive intersection.
.f f see. 9, T. 23 S.,
R. 30 3.

S ils southwest of Orlando. In
ditoh 600 feet southeast of road.
SXf1 see. 8, T. 33 S.,
R. 29 X.

1/28 ile northeast of Conway, in
Sas' Orange Grove. WwwH*
ee. 9, T. 3 S., R. 30 X.

1-3/4 miles east of Conway, north
side of road. i3Vl*I, so1. 10,
T. 85 S., R. 30 L.

About 1 mile northwest of Orlo
Vista, in edge of sink on west
side of road, 1,380 feet north of
SB oor. of S see. 26, T. 22 S.,
R. 88 X.

l* miles west of Orlando, west
side of road. jvWOj see. 16,
T. 88 R. 89 E.


Orange County


Orange County


Orange County



Orange County



Orange County


Orange County



Orange County



Orange County




Orange County



Orange County


Orange County



Orange County




Orange County


7. R. Matthews


J. R. Matthewn


J. R. Matthewa



J. R. Matthews



J. R. Matthews


J. R. Matthews



J. R. Matthews



R. L. Smith




J. R. Matthews



R. L. Smith


7. R. Matthews



R. L. Smith




R. L. Smith


Nov. 1987


4ov. 1927


Nov. 1987



Dec. 1929



Dec. 1927


Jan. 1988



Aug. 1928



June 1928




June 2028



July 1988


Aug. 1928



Aug. 1928




Sept. 1928


463 105


12


8 and



a


Top of iron anhole ria, level with
surface of road.

Top of iron anhole ria, level with
surface of road.


Top of iron manhole rim,.level with
surface of road.


Top of iron manhole rim, approxl-
mately 4 reet above surface.



Top of iron manhole rim, level with
surface of road


Top of iron manhole rim, approxi-
mately 1 foot above land surface.



Top of iron manhole ri, approxi-
mately 4.5 feet above land surface.


Top of iron manhole rin, level with
top of road ourb.


Top of iron manhole ria, about
4 feet above land surface.


Surface.


Top of iron manhole rim, approxi-
nately level with land surface


Top of caring, 10 feet above sur-
face.



Top of iron aanhole rim, approxl-
mately 2 feet below level of road
surface.


99.00


99.19


98.71



97.02



98.28


94.50



100.83



104.23




96.95







99.5


88.12




99.833


10



5



6



10



20




14



None






31







Drainage


Drainage


Drainage



Drainage



Drainage


Drainage
(Lake
control)


Drainage
(Lake
control)


Drainage




Drainage



Drainage
(Laui
control)

Drainage


Observation




Drainage


OS No.


mOs No.


"su No.


m0S No. W.-5



TS No. 1-56


10S No. W-83



mOS No. *-82



ms0 No. w-79




OS No. 1-81



108 NO. W-80


70s No. W-88


10S No. 1-89. Water-
level recorder in-
stalled


1 o No. W-90






C-


183


,ygga





50


51.






















57






638


so.
6ST


64j 3'alleS e ith t of Taft.
|MXiSfXA Bee. 23, T. 84 S., R. 29 Z.


Orange County


Orange County


Orange County


8 mes aoutbeat of Orlando,
sootheast side ot Lake sabana.
ba-N o. O TO. S.,' R. 30 3.

tadl wast oas Orltndo aotheast
dep of Lae Lena. BLame
mse 0; .TO,; 28 5., S R. 8 aX.

1 ail west of Fatwilla, S90 test
east of Interoeotion north side of
eroadd.- lf se;O 16, T. S3.,

1/8atL "soutIhwest of Orlando,
mwet i of Buaby Ave. between
.Bederson St. and Calton Drive.
. 0"a 0 e.-1 6,?. '23'.,
B";uao r.

1 idlewerst of Vairvilla, north
sde or road, 70 feet east of
'Intersection. i* see. 16,
- 2, s.2 9.

Winter Park, southeast corner of
e6to r St. and Welibourne Ave.

LMatland, north shore of Lake
*blla. S 14j* sec. 25, T. 21 S.,
R. 1 .

Apopla, at eat side of Highland
Ave.,: 200 feet north of FourtCh St.

isheasan's Paradise, east 'abore
of Lake Apopta. See. S0,
T.21 a ., R. a8 X.

Wtiier Cardam, south end of lake
Apopa in orange grove just west
of'old city doors .

Oakland, at wago shed in garden
es0 of '.. L. Smith residence.
ummb, "a. 20, T. 22 3., B. 27 X.

se m. 24, T. 22 S., R. 27 X.
3 also east of liter Oarden.


Ooo s, south side of State Road
*8. S Mse. 18. T. 82 S.,
a: .

GSa ,MAu, east abore. m=
see. 11, T. 24 S., R. 8 E.


* wilres southwest of Taft.
B)f s. oc.8, T. 4 S., R. 29 X.


R. L. Smith


J. R. Matthew


R. L. Smith













1. A. Neal

7. R. Matthews





R. L. Smith






R. L. Smith


Nov. 1928


Jan. 1929


Dec. 1928


1930



Oct. 1928

Nov. 1930


Apr. 1926












1925






1931


421


38S


199



43Oo




416



400

388


4235

465


130


300


500


500(?)


484


300(?)

300(?)


81


104


124


Orange County




Orange County



Town of Winter Park

Orange County


Town of Apopka

7. E. Jackson


Harold Tilden


R. L. Smith


H. C. Tilden






T. Hollingsworth


Irlo Bronson

Irlo Bronon


12




12



10


12





4


4


4


16






10 & 12


10


10


Top of ill of catch basin, level
with land surface.


Top of north wall of oatch basin


Top of concrete manhole, appreoi-
ntely 2 feet below road surface.


RaM of anhole, level wit side-
walk.



Top of conrete maanhole, approl-
nately 2 feet belao road surface


Top of iron manhole rim, level
with top of street ourb.

Top of iron manhole ria, level
with surface.

Top jf iron mahole ria, level
with top of street curb.

Top of 4-inh well casing, se
altitude as surface.

3/4-aich pipe, 3 feet above
sarfac .


Top of concrete wall 7.45 feet
above top of casing.

Top of easing, approximately level
with surface.

Top of onorete structure at edge
of well, level with rfrao.

Top of concrete manhole, level
with surface.


Top of casing.


STop of U4 arolss wooden etruatur
slightly above land surface,


175S


I1l .79


93.30


98.57


98




98.46



86.74


77.72


118.40

70.8


74.4


108.59


121.90


192.52


99.36


81.5

86.19


* 0 No. 1W91


10S No. W-98


109 No. 1-93


Drainage
(Law.
control)

Drainage
(Lakte
control)

Drainage



Drainage




Drainage



Drainage

Drainage
(Lake
control)



Domestic
Drainage





Irrigation


Irrigation
& Drainage

Drainage


Irrigation
end
Drainage

Drainage
(Lake
control)

Drainage

oratiage


105 No. 1-86

108 No. 1-256


706 No. W-89



















m0 No. W-218


14




17



13

10


21

3


7


4


1


17


5


4

5


Measuring Point ,
PaC *34104aV-t
Cm 43 C ow Idap U
U No ol a "4 .

1 I 0 |}
, .** 0 &0.0I4 oC N we a R P.so
"4w .u0~
a


I7TT






wrhbr I ~a~aRn.


65








66



69
*~' '





90


71




95


14
S '


74


99




98







80


Bthlos ia o, .ld: eoo t. ook .
bu4lldSl tn.ialds south of Cheney
aglr.ay n 'iir T B ,'MW ;, .


3* -S .et ofnrt Chriatma,
SX6,see. 6. 3, T S S., 33 .

Pianeimte Ar BaBe. Cnste. o
.o.- 8, .. 23 s., R. S 3X.

aeasmtle Air Bame. 0*f
seo. 83, a 3., R. S0 1.

t me.53, T. 32 5., 'R. 0 X.

flamstle Air Bame. i
Ne. m8, 3, 85., R. 30 a.

Sillem moutheet of Plamea'.le.
n oe. 19, T. 83 S., S. 50 S.

i ELN mWoutth of PiOeatle.
31f me. 36, T. a. S., 2 9 .
aft. .eoi3 1, T. S 5.,
a. ur 3.

Taft. S s me. 1, T. 34 S.,
B. 29 1.

I mile soatheot of Orlndo.

ioS meo. 10, o .,u 29
1 RilD Motter-t of Orlando.

Orimado, er0nz' olf oi er and
R o Onand 8 .

OrLu.ado,. moth sid oa of ype
8t.*betwmn kantueky Ave. and
RBo Grand S8t.

l/2mue eouthwest of Pineeatle,
north side of loancater Road, 0.3
ale west of ralroa. s f
ee0.84, T. 53 S., R. 89 2.

Orlando Air Base, northeast aide
of lake, northwest of smnage
plast. nii nee. 20, T. 3 S.,
a. s0 .

Orl~ado ASr hDa, 50 feet north
of laundzr. 3 o e. 19,
T. 8 ., R. 30 X..

Orlado. Air Bam, 95 foot mouth
or lauary. j seeo. 19,
9. 82 8., R. 30 Z.


May 1943


May 1943


Apr. 1943

May 1943

-


Libby and freeP i


Libby and reema

Libby ead 7rPeemn

Libby and fpreeman




Senry RBaha (?)


Libby and Freeman




0. N. Ar e

John Cornell








I. R. Matthews



Stevens Southern



Steven Southern


Stevens Southern


200(?i


445




406


420


235

350(71

149




180

160

9S


145




160.


168










120


Igo


100


V. 5. Any



U. S. Ary

U. S. Aw
U. s. A,'y

Albert Basler

Samor ram

Julia R. Sellaa


Oranage-ounty

Perfection Dairy

Perfection Dairy

A. Hasmon


City of Orlando


Orange County



U. S. AyW



U. 8. Army


T. S. Ary


Top of oonorete ri aronu well pit



Top of 2-tnoh ipep, 1 foot above
gurfaoo.

Surface.





Top of easing, 1.5 oeet above




Top of -inoch casing, one foot'
above surface.


Top of brick curb around well,
about 1 foot above surface.

Top of oonorete mnahole rim,
slightly below level of road.


Top of concrete box around well,
level with surface.


Top of i-Inch teo in airline, 1.38
feet above floor of puaphouse


feet above floor of paupoure.


68.96


.15


95.6


101.16


97.971



111.66



113.56


11466


1


aone


None




None

1


None


None

None



None
None

lone

6







None



6


0n0a


supply

supply


Supply

Supply


Drawing

Domestio


Irrigation

Drainage


Supply
(Dairy)

Supply
(airzy)

Irrigation

Drainae


Sanitary
(Sewage
plant
drainage)

supply
(Laundry)


Supply
(Laundry)


IS 3o. -9,E,.




108 5o. -746.


108 o. W-947.,




Gaems at a im .




Well abandoned and
fllIod up, 1943.

Produces mtham.

Foduoqr methane.


Produooe air under










18s No. 1-294.



908 No. 1-726.


106 No. W-158.


Townaite Corp.


.uao 1926



Mar. 1943



fob. 1943


Mar. 1943


1s I 10


m66S12i2 Point 43

.______ AD easuo,'____ 4. 5"

I a 00 a E-430'
.5 0u a
S' 3 '



1 __


',,qb






*.a klae 2.- ba'. ____________________ _____________________ a


0


*1
-=I


;.4










S4.



SS7





8'7



S9


Orlado Air Bse nortlnst oar
or landsn field, aS5 feat oauth
of XX oar. see. n, T. 82 8.,


a Air Bae, 925 feet xorth-
itr~ control toxer. S b sf
se. n, T. 28 3., R. 30 Z.

oro Air se, 150 fet north-
'*west of aoctro tower, 1200 feet
:,northwest ofoater'of -eo. 29,

.0rlando.Ar B ua, 300 faet math-
'southeat ot: floor. of Sou
sac. 39, T. 32 a.; 3. 30 3.
eon. 29, T. 22 S., R. 30 3.

OrLadoAdlr aM, aply atwLynf lr
'1a0 fts nfortlnt or enter of
se. 9, T. 22S., B. 30 X.

Orlindoi ,as, east dels of
'Ave.;, between 4th and 5th tsm.
Ssb* -eo. 30, T. 22 S..

Orlando Air Baa, eut side of
orwest Are., 600 foot north or
Robinson Ave. South 1/2 Vih
mo. 30, T. 22 a., R. 30 B.

dorLaB Air Bas, 30W rot maet
of B t., 900 foot mfuth oc
Coeey Highway. EWIR* see. 30,
T; 22 S., R. 30 X.

Orlando Air Bee, in east edg o
A Ave., Jut north of 6th St.
b sea o. 30, T. 822 ., R. 30 X

'Orland" Air' Bae, northwest cor-
nor A Ave. and let St. aN3tM
ee. 30, T. 22 S., 0 3.

Orlando Air Bam. Sig8al 3,1
ost edge of Wmll lake. VtNO
soo. 28, T. 22 S., k. 30 X.

Oriado Ali' Ba-, northwest ed
C SalM la Ie, north of laomdiy.
Irsee a. 19, T. 2 S., R. 30 o

Orlan southwest corner of
19th Ave. and Talloks St.
see. 8, T. 83 S., R. 19 .

Orlando, northwest dge of Park
Lake at Broadoy.

Orlando, west side of Irm St..
about 800 to south of Harks St.


if'


U. A8.



U. S. Ary



V. 8Army



U. S. Army


U. S. Amy



U. S. Azr.



7..S. Any



U. S. Army



U. S. Amm

V. S. Army




U. S. Army



US. Army


City of Orlando


City of Orlando


City of Orlando


Stevens Southern



Henry Rasen


La.rn-Atlantec Co.



Layne-Atlantio Co.



Libby- freeman


Lane Atlantic Co.








Stevens Southern











Gray Well & Pump 00.


Stevens Southern


R. L. Suith





P. J. Racha


A S
5I S
*- o-
..* S-
5- qSg
a oa

a *
A'


Measuring Point.


Iao




as





cto
00
.0*


July 1942 481



July 1989 a n



Apr. 1941 449



Apr. -1941 9


Oct. 1941 a8



Jan. 1942 1049



-- 372



Sept. 1940 518



-- 800



-- 350



May 1942 500


ear. 1943 482









-- 154


S-


^a r
I$~S
0!- S 00


Top of iron manhole ri, level with 103.04
Surface.



Top of iron manhole ria, level with 103.43
surfooe.


Top of iron sanhole ria, level with 105.53




Top of Iron manhole ri, level with 10.41
surface.


Top of Iron manhole rim, level with 103.02
surface.


Top of iron manhole rim, level with 101.40
surface.



Top of iron manhole rim, level with 102.70
surface.



Top of concrete maohole, directly 109.36
over well.



Top of iron manhole rim, level with 100.8
street.


Top of iron manhole rim, level with 101.34
concrete floor of automobile wash
rack.




Top of wood platform, directly ore 109.70
all, level with land surface.


Top of Iron manhole rim, level with 104.67
surface.


Top of iron nanhole rim, level it --
surface.

Top of iron manhole rim, level wit 89.67
street curb.


Drainage


T
7





1




8


1



7




None



8



8


8



Nona


9



3

5

3


6


10S No. 1-609.







105 No. -5438.



10S O. 1-543.



F08 No. W-141.



108' N. 1-135.


DrainSge



Drainage



Drainage




Drainage



Drainage



Drainage


Drainage



Drainage



Drainage



Drainage



Drainage


Drainage


'I
'I






r








'I




!'

00 i


J& ''


I I [ I I II I


I I


L~ I


I


I I


III


r


1as No. 1-601.



105 No. 1-03.









Measuring Point M_

d a -s Z?
6 I50 14 2 o1
O a o I 6 0 Nj4
. a a c l S a

0 .
do a 4X
p o i O


Orlando, In north edge of Colonial
Dr., 00 feet east of Orane A*e.

Orlando, northwest oorner of
Jefferson and Garland Sts., 40
feet Wset of fire hydrant.

Orlando, northeast orner of play-
simnd, south of-Alezader Plaoe
at 2S4em St.

Orlana. south side of Earwood
Av. east of Bighland St.

Orlando, east aid of Chapea St.,
ust south of South St.

Orlando, south slde of Holdea St.,
oppoelte Trry St.

Orlado, Griffin Park, in 1m
on south aide of Callahaz Drive,
00 feet west of Danbar Court.

ODando, 8 feet east of wel 104.

Orlando, i south edge of Patrick
St., about 50 feet eat of aryan
St.

Oriondo, north edge of Naley Ave.,
about 400 feet est of Fern Creek
Are.

1/8 mile south of Orlando city
ll8ts. j*N eao. 11, T. 23 S.,
2. sa 3.

Orlando, in Amelia Ave., west of
Westorerland Drive.


Orlando, north ade of Amelia Ave.
about o00 feet west of Westmore-
land Drive.

Orlando, northeast corner or
Intersetion of Annie St. ead
Bradshaw Terraee.

Orlando, south side of 18tb St.,
Just east of Avondale.

Orlando, west aide of Cathoart
St, about 100 feet north of
ULragston AT*e.

Orlando, south side of east
Central Ave. at ern Creek.

Orlando, northwest corner of
Church and Parrmore St.


City of Orlando


City of Orlando


City of Orlando


City of Orlando

City o Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando


Southern Fruit Dis'
tributors Corporation

City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando

City of Orlando


F. J. Rashn


7. C. Dibble


Z. R. Matthews


7. C. Dibble


7. R. Matthoew


Heory Rtashn


Oray Well & PImp Co.


Oray Well & Pump Co.

7. C. Dibble


Gray Well & Pump Co.


Layme-Atlantit Co.


F. 7. Raesh


J. C. Dibble


F. J. Raehn





F. J. Reehn


Dec. 1923


Aug. 1937


iar. 1934


Nor.


Nov.


Apr.

A.='.


Apr. 1940

Jan. 1958






Nov. 1940


Aug. 1922


July 193F


Feb. 1923


July 1925

May 1924


7uaa 1925


Top of Iron manhole ria, level with
stret.

Surface.


Top of ron manhole rim, level with
land surface.


Top of Harwood Ave. curb, level
with surface.

Surface.


Top of iron manhole rim, level with
street ourb.

Top of iron anhole rim, level with


Top of ron manhole rim, level with
lamwn.

Top of iron manhole rim, level with
street.


Top of 10-inch easing, approxi-
mately 1 foot abore land surface.

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



Top of manhole rim, level with
surface.


Top of iron manholo rim, level with
surface.

Top of iron manhole rim, level with
surface.

Surface.

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


96.48


107


lO 106.44


106.55

109


105.97


102.43


103.56

96.06


3


1

1


3


2









None










1


None


5





1

None


Draitage


Drainage


Drainage
Dmirag


Drainage




Drainage
Drainage




Drainage


Dralnage


Drainage



Drainage
(citrus
nate)

Sanitary
(septio tt
dralmage)

Sanitary
bIoptl a ank
drainage)

Drainage


Drainage

Drainage


32372


Ms Po. W-351.


1S No. W-271.


JS No. W-S13.

7o0 No. I-312.


Ms No. I-89l.

O7S No. I-508.


Relief well for 104.





F0S No. WI-SW0.


n08 No. W-5S9.


CO
CO


a







__'-i-i-' _


- 4,
r0
0Y
4,o
0.


01
.0
41
I?0
00)
jj4
.0-


I
60
OA
5r4
0.4
4,
0I


Measuring 1Point

CC
o S
4, I o
I3 *0 4
o *1 -


- 1 1 ______ _____ ______________


Orlando, east sId of Bampton St.,
aboUt :40 feet sooth of Oolonial

Orla2nd, north side of Conaord
Ave., about 75 feet .wet of raoil-
"Toad e~Ouslg.

Orlando, soith side of Conay
Moad, Just 0est of nlterseOtlon
with Hoyr St.

Orlando, west side or Cornell St.,
about Ao feet north of Bay Rn
St.

Orlando, awst side of Carland
Av., between Livingston Ave. and
,,lemnder PlaON.

Orlando, north of Greenwood Ave.,
on slope above Lakm Greenwood.

Olan do, approxmately 80 ftee
saotheast of tell 121m.

driaado, approximately 40 foot
west-aouthwst of well 2lla.

OrLando, woet aide of Shin. St.,
south of BHLorert AVe.

Orlando, south aid* of Pledmont
St., wert of Eugher St.

Orlando north of old city
lnealerator, northwest of corner
of long St. and Rio Orande St.

Orliand, south aide of Jaeocon
St., about' 5 feet east of Or-
,land t. ,i

Orl do. north aide of Lain Cope-
lond'at southwest and of Golden
Oak. Court.

Orlando, east end of Lake Zola.

Orlando, 100 feet mouth of Ivanhoe
rBvd. between Loegon Plaoe and
01adouajo Drive.

Orlando, about 80 feet east of
18a.. .

Orlando, north side of Lake Lorna
'Dooem.

Orlando, Raollta Ave., under
bridge aroes 'onal between Lake
UMina and aka Ratelle.


7. eJ. aha






F. J. Raeha


F. J. Rasha


City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlando

City of Orlando

City or Orlando

City of Orlando

City of Orlando

City of Orlando


City of Orlando


City of Orlando


City of Orlando

City of Orlando


City of Orlando


City of Orlando

City of Orlando


F. 7. Raohn


r. J. Raehn


7. J. Reean

P. J. Rasba






7. 7. Raeha

7. R. Matthews


eaa. 1924


Teb. 1924






Joa. 1925


Wov. 1926


1904 (9?

1904

Sept. 1984

JTune 1925

June 1938

July 1923


Mar. 1923


eor. 1926


Jan. 1925

Apr. 1923






Sept. 1926

Sept. 1926


S75


196


140(9)

140(7)

605

495

486

351


450


315


448

410


384


382

430


Top of iron Manhole ria, level wit
street.

Top of iron manhole ria, level witt
top of street ourb.

Top of iron manhole ri, about 0.5
foot above surface.


Top of easing, south side, level
with land surface.

Top of easing, level with land
aurfaace.

Top of terra cotta tile used as
manhole.

Surface.


Surface.


Sarteeo..


Surface.

Top of iron manhole sia, approzt-
nately level with surface.

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


.......- -----------

..........** -- -


108.87


-.4
88.86


5.. o .~



N.0 0

I!~
jSmh
gala


I


2ISO





3La.




123
18i


7. Raeha

7. Raebh

C. Dibble

7. Reeho


5






None


None


1

1




1

None

1






1





None
onae


None


None

None


Drainage


Drainage


Draiaage


Drainage

Drainage

Drainage

Drainage

Drainage

Drainage


Drainage


Supply and
Drainage

Sanitary
(eptio tel
drainage)

(aeptio tanak
dralaac)

Dralnage


(septie tank
drainage)


10S No. W-373.








Measuring Point _5

i, s fl e.-i .0.-4fl

S4 U s a o* -S G-e *0gS00 9Z
3a a5 a 'g: .s: 4'" S.
S R Cl 0. A- a- a. 06% hS 0
a a s c 4, 52a 5a
Bg_____ __ .1W. ___ ______


132





IS3
154
1858



135

186


137









lto
1405


142a

143

143


144


1481

14S0
145b


146b


.etw.ea Marks -.. enA.d Zllie Ar.

ro S, vacant lot 75 teat
southo flaur St. curb, and 43
ten-,eat atz er S.3, otlfbr
Olado, aerth side or.t park Lake

About 1 mae nortbst of Fairvil-
l*as-. 9, T.. 2 .,. X.L,
north of Bar-ake.
Orelando, Fa ierr St. at Robinson

OLd4o, is west edge of WVastmone-
land rive, 300 tea north or

an abou 100 teet west of
Vetoral alive, between Miller
aMd. nd-an Aes.
Orelando, about 50 teat north atof
ColXumba Ave. about midway between
Westaoreland IAve Mad XMetuaq

Ot.lado, north aide of South St.,
Jat east: of 1118a St.
Orlado, orth *i orf Jeffreorson
St.-, dJust west of Terry St., 10
fet. north of well 25.
Orlando, aorth side of ashington
Ave..-at *xte-loaio or Cobua Ave.
Orlendo, at laterseation at Wash-
Safa an"d Garland Ste.
.S;!-'^ --., .
Orlando, west side of Lee St..
bout .7S ftee north of Washington
St.' .,, ,

Orlando, morth side of Ridgewood
Ave.. about 20 teot west of
abine St.
Orlando, In south edge of Lake
Greenood. ....
Orlando, 6 .tet east of well 145a.
Oiado, at South St. septic tank,
eouth edge of South St. west of
lea -Oreek..
Orlando, at south St. aspti tank,
south of South St., west of era
Ceak.


City ofa Orlnado

City of Orlando


City at Orlando





City of rlando

City of Orlando


City of Orlando


City or Orlando



City of Orlando

City of Orlando


City of Orlando

City at Orlando

City of Orlando


City of Orlando


City of Orlando

City atof Orlando
City or Orlando


City of Orlando


r. z. a. shnt


7. T. Raohn





F*. Raoha

F. J. Reehn






7. 7. Shahn



F. 7. RaeU

Gray Well & Pump Co.


1. Reeshn

F. 7. Reaha N

F. T. Raebha


F. J. Rashn







F. Raeehn


P. Z. Rhake


421


aim or iron ahole ringa, level
with surface.

Top of iran mahole rim, level
with surface.


Top of irn manhole ria, level
with street.


Sept. 1937





Sept. 1924

Sept. 19 3






Aug. 1924






Apr. 1940


July 1926




Aug. 1988


AUg. 1924






May 1925


Doe. 1930


79.5


?4.17


101.821


99.06


3

None


None






None
None













None
1



















None
1





1




None

None
None


None


Drainage

DraiMm
kimagefi

firainag.


Drainage

Drainage


Drainage



Drailgas
Drainage


Sanitary
(reptic tank
drainage)



Drainage

Sanitary
emptie tank
drainage)

Sanitary
Oeptio tank
drainage)


Relief well for well
No. 25.


top of iron manhole rim, level
with land surfeae.


Top of iron manhole rim, level
with street curb.

Surface.


Top of iron manhole rim, level
with street curb.



urfaOe.


Top of manhole rim, level with
driveway.


3197--


q q .... am






trnm


SMeasuring Point %"


4 1C I ? I ? I t I

a 3 0. 0, S03 r4s a &

55--
9 a. i .o e 0 2


Orlm do, at Soth St. septie tank,
oath of South St., west at res

Orlando, south aide of Souath St.,
Soposite enter of aran St.

Orlando, in Bcokrilla St., at
south edge of Lake hYas.

Omando, enter it ifianey Park,
west of COleola St.

Orlando, in Iesteoaland Drive,
on ai oh aide of Conley St.

Orlando, on west ide .of Clear
Lake St., south of Jakeeoa St.

.OAado, west ede of Zake Sola,
sola Park.

Oriando, northwest edg of lake
Dot, eot of Lake Dot Crolea.

2 a es southwest of Orlando.
SlJ oea. 10, T. 23 S., R. 29 2.
8 miles southwest of Orlando.
j see 16, T. 23 S., R. 29 S.
8 miles soutaeat of Orlando.
ji So. 15, T. 23 S., R. 29 X.

l oles south of Pneeoastle.
OI se"a. 25, T. s2 S., R. 29 S.
1/S iIe northeast of Taft.
INsI *ose. 1, T 234 S., R. 89 1.
1 aile west of Pinueastle. MESi
see. 23, T. 25 S., R. 29 E.
Orlando Country Club between pond
near hihway. S;Ju goo. 82,
T. 32 S., R. B29 .
Orl do Contry Club, just west of
8wing Lkow. NIsi ooo. an,
T4 22 S., R. 29 X.
Southwest saId of ake Fairview.
S"seo. 10, T. 22 S., R. 89 8.


C0ty oa Orlando


City of Orlando

City of Orlando


City of Orlando


City of Orlando


City of Orlando


City of Orlindo


City of Orlando


Agnes X. Dougherty

Ageae H. Dougherty

Agn *s Dougherty


Walter A. GrahamI




Orange County

Orlando Country Club


0. 0. Magruder


Nydoggar Invest. Co.


f. J. uasha


























B. L. Smith

Henry Raohn

aenry Rbahn


J. R. Matthews










Stevens Southerm


C. X. pear


1932

1936

J3uy 1934


1914


May 1938


1907


400


TIp of iron manhole ri, level
with surface.


Top of oeaing, about 4 feet below
land surface.

Top of east wall of oonorete oatch
basin, about level with surface.

Top of south wall or catch basin,
2 foot below surface.

Top of east wall of catch basin.

Top of eatoh basin wall, 2 foot
above surface.

Surface.


Top of oonorate manhole, about
level with general land surface.

Top of handrail around wll, 5.14
fest above top of casing.


102.89


93,5'r


Hone




None




Now


None









Name











1

I
1

1

1





4


3


Salary






;eptia ta*
drainage)




Sanitary
(eptie tan





Sanitary
(septe tadl
draImagm)

Ceeptlo taxi

drainage)
Sanitary
(septic tUd



Drainage)

Danitage




drainage
Sanilary





Drainage




Drainage


Drainage
(Lake
control)


SGS No. 1-307.

0OS No. W-314.


" _






fal 1 ,,,,. -,,,


164

165

166







1689

170


An:
191















199


*BTale northwest of firaIllla.
.- ; ..T2. 9 s., a. a29 .
.Omimiad6,; doLS alth t Av l h

UdoR, Dabodr-d Ootantz Club,

-1tamndo, ODbr-ad Country Club,
aoth ad of rZl BLva.

Oie ado, DubdreA. Contry Club,
o,.,... r.,..... c.;- as
'north ofP:ar Ave. ..

'Olbm o, MH;,1lf'oe b St.
at': etanailon of;oods ATAve.

Orlando, north side of l4th St..
'oo-fe-t.eat: of rnataky Ave.

:Oril~~a ; et side of lasvhille
St., eouth of 24th St.

Orlando, north edge of An Lake,
at Perramre St.,

1 ile west of Orlando, north ed94
of Lake Man. li see. 29,
..~8;S.;"R. 89 X.
1 mile wst of Orlando southeast
eideof Lake Mean. iB. e. Sea.


of tIeke Mann. s."',e. se 3.
T. 82'8., R. ~9 .

;x.illes s uthwst of Orlando,
1so.utbeat slde of north paint of
tae raethrinae. 's4 se e. 9,
Ti U Ls3 3. 3 ,9.

'ii ies mouthbws of Orlando, t
sid of south er part of Lake
atherine. S i e. 9,
'T:i tPa'S.,"r "D *

.Orltd6, w-t *ide of rein Oeek
Av*., soAth of Grant Ave. XRJsei
e.' 1, T. 835 ., a. 29 Z.

.1/8 ale mouth of Orlando, at et
odr_ of.ro,. west of XLak.
onse. 18, T. s3 S., R. 9 Z.

\JBie Iasl, eoutheaet side of
* oahwest portion of North Lake
Conwag. 5W seo. 18, T. 38 S.,
,R. 30 ~


R. D. munle

Rellie B. Forbes

Dubadread Country Club

Dubdread Country Club

Dubdrea Country Club

Ocrasw Co uty

Orangp County

Orange Cotnty

Orange County

Orange County






Oan0ge County
Orange County





Orange County

Orange county



Ornge County

Oran County


Orange County


Libby & reoanm






Raebn
.-Bn















Henry Baebn


Henry Rebon


Layne-Atlantic Co.











Henry aoehn


J. R. Matthews


r4
r1
0 0
5o

.0.


Aug. 1941

193S

1935

1925






















Aug. 1941


1


0-
.0
'.44

a.


11U

80

150(9)


190 116


0
oa
0O*
o.o
0.4
af-


350

389



SOC (9)















320


255


398


Measuring Point -



Soor
a -
0 43.-
.5O
0..
-Is
a,8


-I-------










Top of ioae amhole rzi, level
with surtae.



Top or iron manhole rim, about
level with urfaees.

Top of brick well over well,
about 9 fet below general land
surface.


4

8

6







8









18






















12


13


104.94




100.98


94.75


101.59


.92.03


.4 W



AA.1
aaa-

*B 0.
tac aO

B
SO .44.


None

None

ions.




Ioa









1


mam


4


2



3


Sainply








Drainage





Dminage



Drainave





Drainage



(Lake
control)





Drainage
oontrol)i




Drainage
Drainage




(Lake

control)

Nonerol)
raNaf


County records Ind-
cate a 1L-inch well,
158 ret deep, eased
to 150 feet ms
arlled on Las Coomwy
in an. 1983 by
Z. R. tMtthws. This is
believed to be 199 or 180


Top of wood cover over oatch basi
level with land surface.

Top of concrete manhole, directly
over the we*l, about level with
land surface.

Top of concrete manhole, directly
ovr the well, about level with
surface.

Top of iro. manhole rim, about a
feet above land surface.

Top of brick manhole, level with
road surface.

Top or.brick manhole, about 3 feet
above land surface.


)

)

I


Abandoned in 1941.


T2 1 Coat*d.-


s7Ts




















IS0


In






.183






185

186


187
l's











190



191


1982

193


2 milu mouth of Coma,. at leut
ana of MIddle Lake CoonW. Cenofe
of 'ao. 20, T. 85 S.. R. 30 X.

8 le amsouthbeat of Orlando
south. af La k lbabe. B Sb Ni
see- S, T. 23 S., 3. 30 Z.

SnUen aest of Orlando, at north
of q;L ttla Ilae Bartam.
'Z O ew. LA, T. s22 ., R. s30 .

Osuando Mr Basae t ei e of
Lake BItom. N aoo. 28,
T. 22 ., R. 30 3.

Apopka, at mouth' ide of MeClue
Ite '300 feet west of Bigh-
land Ave.

ApOpha, on aram Lake.

Apopka, oa Srama ZLa.


1 ates west of Claroona.
W*I seeo. 4, T. 21 S., R. .28 .

l3 j ise west of Careona.
8gtl e eo. 9, T. 1 S., R. 28 2.

3 mles aortha at of Carcona,
Johon nisa OCamp. wraknit
e:. 1., T. 81L8., 88 3.

Orlando, east edg o lam at
-200 x. Zlinoi ALve. north of
Zliaoiie 'A+e. betwe Hapton St.
and Caden Plaa.

Orlando, south and of Charlsm
Court.

Orlando, center of Lee St., at
mouth ede or Jefferson St.

Orlando, I street near ourb,
southwest corner or Churoh and
Lake t8s.

Orlando, in south edge of Maripo
St., between O eola aad Lake Sta.

Orlando, north side of South St.,
in enter of Sumerla St. extend-
ed.

Orlando, about 150 reet south of
warka St., about 130 feet east of
1na St. .


'-1

0e

.0d,
A'
t


08


a


0-

-0


Measuring Point




Q asX
"4 *0e0


J. S I. 1-- 4 1 t


Orunge County


Lysinda Grove.


Orane Coounty.


Orange County


City of Apopka


lorida Utilities Corp.


Florida Utilities Corp.


R. H. Seegar


R. B. Saegar

T. S. Johnaon


City of Orlando



City of Orlando


City of Orlando

City of Orlando


City of Orlando


City of Orlando


City of Orlando


3. R. Matthoew


W. X. Cornell


Layne-Atlantic C0.


W. X. cornell

ArIo


1935


Peb. 1941


1938


600


357


583


161


498

165


493


416


180


200/

63

oo0(?)


Top of iron sanhole ria, level
with surface.

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


Top of iron manhole, level with
surface.


Top of iron manhole ri, level
with street.


Iri i rom---


42 I'%

Oln-

oco
822
aeo


118.78

















104.03'









93.02


Nameo
voa*


None










None


None





a

None







None

None





None

None


None


(Lake



control)
(Lake

oontrol)
Drainage




Supply


(auniolpal

Supply
(fam)

Irrigation


Supply
(domestle)


Drainage



Drainage


Drainage

Drainage


Drainage


Drainage


''


J"ZX.







asbl I Coit*.-
Measuring Point 5


43. 44 0 0 52 0 M,
4 55 'R Io U|

01. 0 s *e U
__________ ____________d L


197


198'



199

'200



301





.203
.206







205


806


207


208

209

210

211
an


212

213


Orange Conty


Ooths, wet sId, of La1e Olivia.
"a -o. S3, T. 22 S., .. 28 X.

Orlzeo, just oath or south city
lsts ~ t north ad of Lake
Zoldae. UjSX meeo. 2, T. 23 S.,
2 9

Dr. Thiliups. mi sea. 36,
T. 2b.,' R. OX. .

About 1 mie wet of Fatrvills.
Si*I aeo. 16, T. 38 S., a. 29 X.


About 1 Sles' went of Orlando.
Sl1 maes. 29, T. 2 s'., R. 29 B.


About 1 miles weat of Orlando.
t se. mo. 16, T. 88 S., R. 29 X.

About 1f males wst or Orlan o.
M~iSf eec. 39, T. 22 S., R. 89. Z.


About 1 Ailes southwest of
Orltado. NW MF soe. 4, T. 22 S.,

About f miles southeet or
Orlindo. 1, B S see. 5, T. 22 S..
R.: 290 .

About 2 miles southwest of Orlando.
JW* seo 9, T.,3 S., R. 3S S.

About miles east of Orlando.
Wi a'. 27, T. 28 8., R. 30 E.

About 3 alles east of Orlando.
ig me 3e. 2 T. Us S., 3. 30 Z.

Pineastle, ooenter of sec. 24,
T. 235 ., R. 29 B.

About 6 atles east or Orlando.
SW I see. 18, T. 2 S.,. 31 X.
Orlando, Orlando Count7y Club.
1 oe. 22, T. 2S S., R. 29 8.


About a miles southwest of Orlando
SW iV -sea. 5, T. 228 ., R. 39 Z.
About .miles southwest of Orlando.
SniU* sea. 7. T. 22 S., R. 29 X.


Orange CounMty



Dr. Phillips

Fred Saen



Dr. 7oe. Safian



ands' Dairy


Sarl Parker



Zarl Brookland


L. 8. MoLeod


Roscoe A. Mach

Dr. Marvin

.Madge Carrington

Pineeastle Boat bo.

Turner a OGe Co.

Orlando Country Club



L. B. MoLeod

L. B. MoLeod


May 1931







unea 1943

uare 1941



1941


7. R. Matthews







Libby & Fr smau

Libby & rroe a-



Libby & Pa emn



Lbby & Freeman

Libby & raeeman



Libby a raoan

Libby & Freeman


Libby & Freeman


Libby & Frea



Libby & Freeman


Libby & Frenama

Libby & Freman

Farm & Home Mach. Co.



Libby & Freman

Stevens Southear


356

310



240



140

140



195


35


150

19

250

106




649






450


12



4

3
2




83


3




3


3


3

3
3



5




6
4


12

18


Top of Iron smnhol over well,
level with sorfao.






Top of 4-inch easing, about 1.5
fast above land surface.



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


Top nf 3-inch casing. about level
with general land surface.



... ...... ---


96.a8


56.22


None






IfNone








None

None



None


Nano
None





iRons
Hlon







None


Nea





1

None


Drainmp
(Lake
control)


control)


Supply 103 well o. W*368
(dome-tlo)

Supply Originally 165 feet
domestic ) deep and wtor wa pol-
luted. eported to be
U right sioe'deepen-

Supply Orisally 140 feet
(domatic) deep and prodnuuoed '
Oas at opd 'hbm *all
a"nd eased to,

Supply Produaes aa.
(domeatio)

Supply the drilled this wl'
(domestic) product e o unaa 2
pound presaaure. Still
bubefis mail qun.tl-

Supply
(dometio)


Supply Driven wall.
(doametie)


Supply Produces inflasmble
domestic ) gas.

Supply Produces gas.
domestico)

Supply Produces gas at
domesticc) irregular Intervals.

Supply Gasses ooosonally.
domestice)

Supply
(abbatoir)

Supply Originally 369 foet
(domstio) deep. Beeaam polluted
after drilling of well
o. 161 and was daepn-

Dralaage

Drainage


1941


1942


june 1942

Oct. 1941

1940












1940
1940


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


G"V


-- .






1 I*7r


cC %t
r4 .1 4, r-4 C
Ito irin" Pojt 1
1.* .1*ort o -4 o 4 s-44*t
C 3 4- *4 1 P -. 0 0
S1.44' 0 4 0 -a 12 a
P C 4. 0. ;4. a .oo
0 4a 0. -. 0.
q4 o 6 0 4) on
il 6 o- 4-< u > .-i *1P I- o
e-I h3aS- .1- -4'- 5. 9a 1.* 0)5 0.
o 0- 04 0 0, S 0t
I .S u & 0 1 ca 125Q5)
a L 4 0 S
0___ a


About tWo Lls southwest of
Orlanda. s see. 9, T. 223 .,
R. sa .

About two miles southeast of
Orlando. S* see. S, T. 22 S.,
8. 8 .

Orlando, 1111 Virginia Drive,
north of Virgi .a Drive, about
400 feet west of Orang Ave.



Orlando, Orange and Highland Aver
at' souttwest corner of brewer.

Orlando, Orange and Bighland
ATes., south of brmwry near
railroad.

Winter Park, just north of SoMpe
ATe., near Atlantic Coast Line
Salroad. 8s n see. 6.
T. 22 S., R. 30 .

Winter Park, southeast of Zoe
Plant, south of Cole Ave. SaIIi
sae. 6, T. x.S., R. 30 Z.

Winter Park, Just north of Smwop
Ave, noar Atlanti Coast Line
Wkllroad west of well 219.
S Niso o. 6, T. 22 S., R. 30 X.

1 alle west of PlPouth an north
siae of Hnw. 441. n~5i see. 36,
T. 80 8., R. _27 .

.0lando Air Bas, about 800 feet
north of laudry. S3jf see. 19,
T. 22 8., R. 30 X.. 15 fest west
of well 346.

Orlando Air Base, about 800 feat
north of la mnry. S. see. 19,
T. 88 S., R. 30 e., 15 feet east
of well 223.

About 3 miles south of Taft.
approximately 75 yards west of
hiahbay. a2a3 see. 23, T. 84 Si

Orlano, Seybold BaD g Oampy,
north side of Irks St., wet of
railroad.

Orlando, i port offtie law, east
of Court St., about 150 feet sout
of Robinson Ave.


L. B. MoLeod


L. B. Xoa.od


Polar Water Co.




Atlantic Coapean


Atlantte Coapany


Florida Utilitis: Corp.



Florida Utilities Corp.


Florida Utilities Corp



Rrederick Weis. Ply-
mouth gardens Tourlst
Camp.

V. S. Army



U. S. Artmy



Irlo Brnono



Seybold Baking Cmapany


Orlando Post Office


Stevens Southern Co.


Libby & Freeman


E. H. dewitt




H. Rebhn


E. ha hn











Oray Well & Pump Co.



W. 3. Cornell



Layan-Atlantio Co.



Layne-Atlantle Co.








Cohoon IMachinry Co.


Fara & oase Mach. Co.


1940


1940


1939


1943



Sept. 1943


Aug. 1943



AUg. 19P4








July 1940


Nov. 1948


590


603


453



487


460



394


453



1005


60


154




75


75



ai
152


100


101
271


67


180



140
496


70



153


18
16


6


6




4


10







6


Surface.


Top of eaasng, about 1.5 feet above
land surface.


130


114.40


Top of easing, about 1.5 feet above 114.36
land surface. I


roe


Nono


None











None



None

None





1


8



8




aooa
None



None

Irbn@


Supply
(domeatie)


Supply(OoB
merclal -Q
of diatslui
and minera
water)

DatarI
Meb
Drainsig
(for bwq
cellars.)





Supply
(auntapal)




Supply
(munioipal)




Supply
(dowestio)






Observation


Supply
coolingg
system)

Drainage
{eeoc.Sh
en)r


Drive well.



a
























F0S. wll No. W-812.


108 well so. W-804.
Recorder inatalled.


708 well Bo. W-806.
Recorder installed.







Produeos combustible
gas.


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


- ----,--- -


-------,------------ -


:.."h a,' 1 fl ed.-








5 eastuing Point 13

0 6 5 o i 0 a" 56


,.I .,-I .I 4)- p4= 6|SI
-
.god0
__V I_ _
42 P.
A P


Orlando, I post office lawn, west
of Maina. t., 150 feet south of
Robniason Awe.

Pineastle. if sec*. 24.
T. 23 Si., R. 29 E.

2 miles northwest of Apopka.
Si ee. 33, T. 20 S., R. 8 1.

At underpass on highway at north-
west edge of Wptear Park.

Orlando, southwest edge of Lake
TUnderill. S* sea. 29, T. 22 S.,
.R. 30 X.

Orlando, at plant of florida Publi
Service Corp., west Robanson Ave.

North side of Lake Buchanan.
I c see. 10, T. 23 S., R. 29 3.

Northwest side of Lake Jessamine.
see. 14, T. 53 S., R. 29 S.,
north of well 236.

Northwest side of Lake Jesamine.
St see. 14, T."23 S., R. 29 N.,
south of well 235.

Southeast edgi of Pocket Lake.
SiSfi eeo. 14, T. 23 S., R. 29 E.

Southwest corner of Middle Lake
Conway. TSji see. 25, T. 23 S.,
R. 29 I.

Nortthest aide of Middle Lake Con-
way. NWi see. 20, T. 23 S.,
I. 30 1.

Orlando, southwest corner of City
Ball, north side of South St.

Orlando, northwest side of Lake
Dot, east of Lake Dot Circle.

About 6 miloen eat of Orlando.
5s see. 26, T. 22 S., R. 30 N.

Orlando, west of Parramore St., at
Otay Plaoe.

Orlando, at Coca-Cola Plant, north
slde of Conr Av., east of Atlannt
ATe.

Orlando, Rbout 00 feet west of
Magnolia Ave., about 3'0 feet
north of Coloieal Drive.


Orlando Post office


John Keene

Baxter Long


State Road Dept.

Orlando Utilities Con.


florida Public Service


Hoequist Airport


Jesse Bumby


Jesse Baby





Matchett


Crittenden


City of Orlando

City of Orlando

V. S. Amy

U. S. Dept. Agr.


Coca Cola Co.


City of Orlando


Raehn


senry aeahn


May Brothers

Gray Well & Pump Co.


Layne-Atlantic Co.



























Layne-Atlaantic Co.


Yan & Hse Mach. Oo.


Coboon Machinery Co.


1940


1925?

Feb. 1930


Jan. 1937





Oet. 1940



























Sept. 1943


285


318

977

908


1050


191


128


92


12


18
12

6


12


12


6


6


8


10


10








3


10


Surface.


None


None

None


None





None

None

None




None


None
None






None


None

1


None


None


None


244


Supply
(ooling


Draineag

Drainage 1lG well No. w-121.


Drainage 7OS well No. W-362.


Supply r1S wall No. 1-367.
municipall)


Supply I70 well No. W-527.

Drainage

Drainage


Drainage


Drainage


Drainage


Drainage



Drainage


Drainage


Supply 70GS well No. W-809.


Supply Produoea inflamable
(cooling gas.
system)

None Polluted. Not used.


Draainage























LAKE COONTTY

1 Tavare, 200 Nrth Central,ATv. A AXArrlagton 150 4 Top of flange. about 3 inches above 99.25 1 Iigatilo
liad suraoe.


OSCEOLA COUNTY

5 1 alls outbhst of lesiamee. A. P. Tate 400(9) 4 Top of northeast corner of conoret 67.16 2 Irrigation
e a. 32, T. 25 S., R. 29 2. Irrigation box, about 1 foot above
land uorface.


_____ SEMINOLE COUNT

35 Southeast ede or Late .Tesap, s. Ze -- 4 Top of aouth of valve. 18.72 10 Observa- IReorder lnstallatlon.
about 4 Mlle northeast of Oviedo. tlon

36 Sanfoza, at Celery Ave., north John amble -- 1913 90 80 4 Top of horizontal 8-inch pipe, over 14.89 1 Irrigation
aide Celery Ave., at eaot aide of concrete irrigation pipe.
drivewTay across road from reside
of Joln Brumley. Sea. 28, T. 19
S., R. 31 Z.
37 About 3 allme aouthwest o C off antaord Layne Atlantic Co. Apr. 1943 160 90 12 ----------------- None Supply 7I8 Wall No. W-765.
ford. Il see. 11, T. 20 S.,
R. 30 3.








TABLE 2

Water levels, in feet, with reference to measuring point.

(See Table 1 for altitudes of measuring points. Water levels in
wells 1 to 66 through 1934 are from U. S, Geologina1l Survey Water-Supply
Paper 773-0 and have been adjusted for difference in measuring points)


Well 'Wter Well Water Well 1ater
No level o, Date level N. Dat level

Orange County Orange County i Ornge. County
S (Cont'd..) (Cont'd.)
1930
1 Aug. 4 -29.1 1934 1930
8 -29.44 1 Jun. 19 -28.3 3 Aug. 8 -31.37
21 -30.9 1943. 21 -32.0
S25 -29.9 I My 18 -38.38 25 -32.0
Sep. 2 -31.3 25 -37.73 Sen. 2 -33.2
8 -30.6 Jun, 10 -38.36 8 -32.4
15 -30.4 17 -38.46 15 -33.10
1931 25 -38,63 1931
May 13 -31.90 Aug. 19 -37.50 Aug. 8 -36.5
Jul. 14 -34.2 O.t. 28 -36.61 1943
18 -34.22 Jun. 25 -40.48
Aug. 8 -34..57 1930 Aug. 19 -39.30
14 -34.42 2 Aug. 5 -30.7
15 -34.42 8 -30.9 1930
1932 21 -31.5 4 Aug. 6 -38.4
Jan. 6 -35.9 i 25 -31,8 8 -37.48
Feb. 9 -36.5 Sep. 2 -32.8 21 -39.0
A Mar. 9 -36.7 8 -32.1 25 -38.7
Apr. 5 -37.16 15 -32.8 Sep. 2 -40.0
Jun. 16 -36.40 1931 8 -39.0
Jul. 4 -36.86 Jul. 14 -35.8 15 -39.9
S Aug. 2 -36.90 i Aug. 8 -36.2 i 1931
Sep, 7 -36.76 1933 Jul. 13 -43.6
10 -37.0 May 11 -40,2 Aug, 8 -43.95
S Nov. 18 -37.21 1943 14 -43.70
1933 May 17 -39.98 15 -43.70
S My 11 -38.62 .18 -39.95 1932
'25 -38.8 25 -39.18 Jan. 6 -44.9
Nnv. 28 -34.6 Jun. 10 -39.83 Feb. 9 -46.2
1934. 17 -39.93 Mar. 9 -45.6
Jan. 4 -35.7 25 -40.03 Apr. 5 -45.41
Mar. 21 -36.2 Jun. 16 -45,04
S ay 17 -34.1 1930 Jul. 14 -45.51
Jun. 18 -27.8 3 Aug. 4 -31.0 Aug. 2 -45.78
I ~i i








Table 2 Cont'd,

Water levels, in feet, with reference to Rmsuring point
Well Water Well Wrter W'll Water
Dte level Dt Date level
NHO level I-o. l N~n la vel


Orange County
(Cont'd.)


1932
4 -Sep, 7
10
,NO, 18
1933
May 11
1943
Jun. 21
25
Aug. 19

1930
5 Aug. 5
8
21
25
Sop. 2
8
1931
Jul. 13
Aug. 8
14
15
Sep. 10
1933
Mly 11
1943
lhy 25
Jun. 10


1930
Aug. 5
8
1931
Jul. 13
21
Aug. 8
1943
Uqy 17
25


Orange County
(Onnt'd.)


-45.86
-45.6
-47.1

-47.5

-47.4
-47.35
-46.17


-35,71
-36.03
-37.8
-37.35
-38.7
-39.1

-42.4
-42.75
-42.40
-12.35
-45.00

-46.6

-45.50
-46.36


-39,0
-37,55

-44.0
-435.6
-44,3

-47.78
-47.31


1943
6 Jun. 10
17
25
Aug. 19

1930
7 Aug. 5
8
21
Sap. 2
.8
15
1931
Jul. 13
21
Aug. 8
14
15
1932
Sep. 10
1933
May 11
25
Nnv. 27
1934
,,y 18
Jun. 16
18
19
20
21
23
26
1943
May 18
25
Jun. 10


Orin~. County
(Cont'd.)


-48.03
-48.13
-48.21
-46.9


-38.6
-38.15
-39.6
-40.7
-39.9
-40.7

-44.75
-44.30
-45.00
-44.70
-414.70

-47.55

-49.2
-19.4
-45.0

- 1,
-43.9
-31.7
-35.7
-36.5
-37,2
-37.7
-37.8
--38,7

-48.78
-48.32
-48.99


1930
8 Aug. 8
Sf-. 2
8
15
1931
Jul. 13
20
Aug. 8
14
15
1933
MIiy 10
1934
Jun. 18
26
1943
Miy 10
25
Jun. 17
25
Aug. 19

1930
9 Aug. 8
15
Sep. 2
15
1943
MA y 17
22
25
Jun. 10
17
25

1930
10 Aug. 4
8
Sep. 2


-34.98

-37.4
-37,9 )
-57.47

-41.2
-40.57 i
-41.42
-41.17
-41.12

-45.77

-35.
-35.1


-44.69
-4 4.86
-45.61
-45.74
-41.3


- 1.20
- 0.4
- 4.0
- 3.8

-14.01
-14.10
-14.10
-11.75
-14.9
-14.94


- 3.53
- 4.735
- 7.50





'51


Tabloe2 Cont'd.


Water levels


Orange County
(Cont'd.)


1930
10 Sep. 8
15
1931
IMay 1
13
15
Jul. 10
13
29
31
Aug. 5
7
8
14
15
18
1932
Jan. 6
Feb. 9
Apr. 5
Jun.
Jul. 14
Aug. 2
Sep. 7
10
Nov. 18
1933
Mny 11
25
Nov. 24
28
19 r4
Jan. 4
Jun. 5
19
26
1943
My 17
25
Jun. 10


- 5.50
- 7.30

- 9.1
- 8.9
- 9.42
-11 .6
-11 ,8
-11 ,45
-11,,58
-11.,8
-11.85
-11.9
-11.2
-11,4
-11.7

-13,23
-1. 05
-13,95
-11.20
-13.9
-13.
-13.
-14.1
-14.57

-15o9
-16.0
-11.8
-12.0

-12.4
-11.3
- 2.5
- 4.7

-15.89
-14,,85
-15.56


,e t


Orange County
(COnt'd.)


1930
11 Aug, 5
8
21
Sen. 2
1931
Aug. 8
14
15
1932
Feb. 9
Mar. 9
AIr. 5
Jun. 16
Jul. 14
Au.:. 2
Seo. 7
10
Nov. 10
1933
hiAy 11
25
Nov. 28
1943
Jun. 25
Aug. 19

1913
12 Mqy 17
25
Jun. 10
25
Aug. 19

1943
13 Jun. 15
17
25

1926
14 Den.


-32.8
-32.57
-34.53
-35.1

-39.25
-38 90
-38.90

-41.4
-41,.2

-40.11 ii
-41,31
-41 25
-41.21
-A1.5
-11.72

-43.1
-43.2
-39.1

-,12.67
-41.55


-15.15
-14.23
-14.94
-15.15
-13.82


-42.71
-42.78
-4?.86


-32.5


iint


Orange County
(COnt'd.)


1943
14 1May 18
25
Jun, 1
10
17
25

1927
15 F-"b.
1943
M1y 18
25
Jun. 10

1927
16 Aug.

1926
18 Lr y

1926
20 Apr.
1913
vIwy 17
25
Jun. 10
17
25
Aug. 19

1926
21 Oct.
1943
May 27

1926
22 Ont.
1943
M'iy 14
25


-38.51
-37.70
-38.16
-38.26
-39.46
-38.58


-38.


-41.10
-40.31
-40,40


-22.5


-27.


-42.


-47.68
-46.76
-47.45
-47.50
-47.69
-46.56


-40.

-42.19


- 8.


-16.96
-15.25








Table 2 Cont'd,


Orange County
(Cont 'd)


1943
22 Jun. 10
17
25
Aug. 19

1926
23 Ot.
1943
Mqy 18
25
Jun. 10

1926
24 0nt.
1943
Jun. 16

1926
25 Den..

1926
26 Mar.

1926
27 Mnr.
1943
May 17
25
Jun. 10


1926
28 Jul,
1943
MYy 17
.25
Jun, 10

1943
29 Jun. 16


-15.85
-16.00
-16.14
-15.O00


-45.


-48.94
-38.57
-39.32


-23.

-34.90


-36.


-41.


-46.83
-45.89
-46.59


-34.


-42.96
-42.09
-42,77


-40.35


Orange County
(Oont'd.)


1943
29 Jun. 25
Aug, 19

1926
30 Mar.
1943
*May 17
25

1927
31 Feb.
1943
Mly 17
25
Jun. 10
17
25
Aug. 19
0nt. 20

1927
33 Feb.

1926
34 Nov.
1913
Jun. 25
Aug. 19

1930
35 Aug. 9
28
Ofit. 4
1931
Mqr. 23
Miy 13
Jul. 10
Aug. 7


-40.47
-39.28


-46.


-48.85
-48.45


-40.


-40.89
-40.29
-40.84
-40.96
-41.01
-39.93
-38.20


-40,


-35.


-40.94
-39.74


-29.65
-31.10
-32.9

-33.85
-32.82
-35.33
-35.65


Orange County
(Cont'd.)


1932
35 Sep. 9
1933
Nov. 22
1934
May 14
15
Jun. 20
1943
May 12
19
31
Jun. 8

1930
36 Aug. 9
28
O.t. 4
1931
Mar. 23
May 13
Jul. 10
Aug. 7
1932
Sep. 9
1933
May 11
Nov. 22
1934
M1r. 12
May 14
22
Jun. 4
1943
May 11
19
Jun. 8
Jul. 1
Aug. 20


-37.65

-35.45

-36.9
-35.5
-27.9

-38.98
-38.94
-39.00
-39.20


-31.08
-32.55
-34.42

-35.30
-34.33
-36.90
-37.25

-39.25

-40.9
-37.1

-38.
-38.5
-34.8
-36.5

-40.00
-40.46
-10.60
-40.80
-38.8







Table 2 Cont'd,


i Well
No.


Water levels, in feet, with referene to measuring point


Date


W'ter
level I


Well
No.


Date


- -- .----.-.-.-- --I -7-,~I-----L I~


Orange County
(COnt'd.)

1930
37 Aug. 9 -31.00
28 -32.50
0nt. 4 -34.48
1931
Mar. 23 -35.55
May 13 -34.39
Jul. 10 -36.90
Aug. 17 -37.25
1932
Sep. 9 -39.25
1933
YMy 10 -41.0
Nov. 2 -37.1
1543
May 11 -40.79
Jun. 8 -40.67
Aug. 20 -39.7

1930
38 Aug. 9 -28.29
28 -30.19
29 -30.5
0-t. 4 -32.8
1931
Mar. 23 -33.64
k'y 13 -32.5
15 -33.0
Jul. 10 -35.8
14 -35.80
18 -35.84
80 -35,409
Aug. 3 -36,01'
7 -36 i.
14 -36,0
1932
Sep, 9 -38.4
1933
May 10 -40,21
Nov, 21 -5,r?
27 -35,6
De". 28 -37,0


Water
level


Orange County
(Cont'd.)


1934
38 Jan. I
Feb. 26
Mar. 12
21
IMay 14
15
16
17
22
29
31
Jun. 5
8
19
20
21
1943
liny 11
19
Jul. 1
Aug. 20
0.t. 28

1931
39 Aug. 3
7
1932
Se-I. 9
1933
May 10
Nov. 21
1934
Miar. 12
19143
May 11
19
Jun. 23
Aua. 21


-37,2
-37.6
-37 .2
-37.8
-37.5
-35.6
-36.1
-34.1
-32.7
-32.8
-33.8
-3,4,8
-35.1
-25.9
-26.2
-26.9

-39.85
-39.73
-40.23
-38.8
-36.9


-34.0
-3,1.03

-36.0

-38.0
-33,83


-37 59

-37 1?
-36.5


1943
May 11


Well Water
No. Date lavel

Orange County
(Cont'd.)

1943
40 Mqy 19 -34,86
Jun. 8 -35.29
Jul. 1 -35.14
Aug. 20 -31.1

1931
41 Jul. 10 -31.75
27 -32.00
Aug. 7 -32.25
1932
Sen. 9 -34.0
1933
May 10 -35.5
1943
May 11 -36.12

1931
42 Aug. 7 -40.1
1933
Nov. 22 -40.1
1934
May 18 -39.6
Jun. 19 -34.6
21 -35.3
22 -35.5
26 -36.0
1913
May 12 -13.49
Jun. 8 -43.62
Aug. 20 -48.69

1930
13 Aug. 9 -37.82
28 -39,0
O0t, 5 -40,74
1951
Mar. 23 -.1 60
hMy 13 --10 5?
Jul. 10 -4? 87
Aug. 7 -43.25


----


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







STable 2 OCnt'd,

Water levels. feetP with reference t measuring pint
Well Water Well 'ter Well 7er j
Date le Date IDate e
Noe level ln. level NR. lveL

Orange'County Orange Countv Orar--e County
(Cnnt'd.) (Cnt' d.) (Cnnt d.)
1932 131 1943
43 Sep. 9 -45.3 46 Mar. 23 -35.8 47 Aug. 20 -16.00
1933 May 13 -34.42 27 -15.79
May 11 i 46.9 Jul. 10 -36.70 SeD. 3 -15.79
Nov. 21 -43.1 Aug. 7 -37.00 Ont. 17 -12,35
1934 1932 20 -12.54
Mar. 12 -44.3 Sen. 9 -38.9 24 -12.76
May 18 -42.5 1933 30 -12.98
Jun. 4 -43.0 0 Nay 11 -40.5
19 -37.3 Nov. 22 -36,9 1 30
21 -38.2 1943 I 48 Aug. 29 -28.1
22 -38.1 i iay 12 -39.75 0"t. 4 -31.81
26 -38.9 1943
1943 1930 May 11 -38.88
L ay 12 -46.64 47 Sep. -. Jun. 8 -39.01
Jun. 8 -46.76 1931 23 -39.15
Aug. 20 -45.84 Jul. 9 6.
14 5.5 1945
1930 15 5.5 49 Yay 12 -54.49
44 Aug. 28 -25.42 17 5.67 Jun. 3 -54.00
O.t. 4 -27.2 19 5.75 8 -50.97
1931 22 5.74 Aug. 20 -53.4
Y'a. 23 -28.06 29 5.70 1
,ay 13 -26.87 Aug. 9 6.0 1943
Jul. 10 -30.1 12 6.1 50 Jur. 8 -29.30
21 -29.9 13 6.2 2.: -29.46
Aup. 7 -30,37 16 6.1 Aug. 20 -32.4
1932 l19
Sep. 9 -32,77 Jan. 6 -11.75 1930
1933 Feb. 9 -12.R9 51 Aug. 28 -29.40
May 10 -34.7 Yir. 8 -13.45 Ot. 4 -30.90
EKnv. 21 -30, A-r. 5 -14.6 1951
1943 J|un. 16 -12.96 par. 22 -32.
:ay 11 -53,57 Jul. 14 -13.95 Mav 13 -29.1
19 -34.45 3en. 9 -11.3 Jul. 10 -3.11
Jun. 23 -34.84' Nov. 18 -14.48 22 -32.8
Aug. P1 -3'.3 1933 Au-. 8 -53.6
Miay 10 -18.0 11 -33,51
1930 1943 1932
46 Aug. 9 -31,79 Jul. 31 -16.27 Sep. 9 -36.31
28 -32.85 Aug. 7 -16.20 1943
Ont, 5 -34.4 13 -16.38 ay 11 -38.47
__ __________








Table 2 Onnt'd.


Orange County
(Oont'd.)


1943
51 Jun. 8
23
Aug. 20

1931
52 Mar. 23
Jul. 10
18
Aug. 7
14
1932 ..
Sep. 9
1933
May 11
1934
May 18
22
Jun. 19
21
26
1943
May 12
Jun. 10

1931
53 Mar, 22
MAy 13
Jul. 10
1932
Sep. 9
1933
May 10
Nov. 22
27
1934
May 18
22
Jun. 7
18
20
g6


-38.56
-38.60
-37.2


-34.6
-36.0
-36.05
-36.3
-36,4

-38,5

-40.2

-35.6
-34.9
-30.
-30.8
-31.5

-40.18
-40*14


-31.65
-30.37
-32.84


-36.1

-38.1
-33.3
-33 .4

-34,4
-32.8
-33.7
- 9.4
-27.3
-28.6


Orange County
(Cont'd.)


1943
53 May 11
Jun. 8
23
Aug. 20

1931
54 Jul. 16
Aug. 15
1932
Sean. 10
1933
May 10
Irnv. 22
1934
Mar. 21
May 18
1943
May 15
Jun. 5
12
26
Aug. 13
24

1931
55 Jul. 16
1932
Sep. 10
1933
May 10
Nov. 22
1934
May 18
Jun. 18
1943
MNy 15
5
12
Aug. 24


-38.32
-38.34
-38.46
-37.0


-25.35
-25.15


-28.1


-29.7
-25.65

-27.3
-25.0

-23.80
-27.35
-28.86
-29.23
-26.94
-26.75


-15.7

-19.0

-20.6
-16.55

-16.0
-10.0

-20.63
-20.33
-20,38
-18.98


Orange County
(Cont'd.)


1931
56 Jul. 17
31
1932
Jan. 6
Feb. 9
Mar. 8
Apr. 4
Jun. 16
Jul. 14
Aug. 29
Sep. 7
10
Nov. 18
1933
May 10
Nov. 27
1934
May 18
Jun. 7
29
1943
May 15
Jun. 5
12
Aug. 11

1931
57 Aug. 13
1932
Jan. 6
Feb. 9

1931
58 Jul. 14
1932
Jan. 6
Anr. 4
Jun, 16
Jul. 14
Aug. 2
Sep. 7


-59.4
-59.7

-61.9
-63.0
-63.1
-63.28
-63,79
-63.67
-63.97
-64.08
-64.0
-64.50

-64.0
-60.9

-62.3
-61.9
-58.6

-64.87
-61.99
-65.08
-61.69


- 1.0

- 2.66
- 3.


/ 9.3

/ 8.4
/ 3.4
/ 5.9
/ 4.6
/ 5.7
/ 4,7







Table 2 Oont'd.


Well
No.


SWater
Date level


Orange 'County
(Cont'd.)


1931
59 Aug. 12
1933
De". 18
1943
May 15
Jun. 12

1943
60 Jun. .12


61


1931
Jul. 14
1932
Jan. 6
Feb. 9
Apr. 4
Jun. 10
Jul. 14
Aug. 2
Sep. 2
9
1933
Miy 10
25
Nov, 23
19S4
Jun. 5
6


1944
May 5
Jun. 12
Aug. 21

1931
62 Aug. 8
1933
May 11
1934
Jun. 2
1943

Aug. 21


-21.3

-22.8

-28.76
-28.74


-45,14


-40.4

-42.8
-415.2
-16,0
-44.10
-4,91
-45 .3
-43.12
-44.2

-47.15
-46.8
-42,1

-52.5
-36.4

-47.91
-47.93
-42.10


-19.1

-24.3

- 1.9


-24.14


Well
No.


Water
Date level


Orange County
(Cont'd.)


1931
63 Aug. 5
1933
hMay 11
Nnv, 24-
1934
Jun. 4

1931
64 Aug. 5
1933
May 11
Nov. 24
1934
Jun. 4
1943
Aug. 7

1933
65 May
1943
Jun. 19
Aug. 2

1933
66 Nov. 28

1943
69 IMay 8

1943
71 Miy 8

1943
78 May 19
25
Jun. 10
17
25
Aug. 19


79 May 11


-15.15

-17.6
-1-.6

- 8.2


-21.8

-24.2
-21.25

- 5.

- 5.2


-22.6

-26.89
-85.72


/ 7.1


-37.30


-30.75


-4.1.41
-43,96
-14.63
44 .89
-14.93
-43.5


-19,55


_. Weter levels, in feet, with reference to measuring pOint


Well
No.


Water
Date level


Orange County
(Cont'd.)

1943
79 Aug. 20 -

1913
81 May 13 -
22 -
28 -
Jun. 4
29 -
Aug. 18

1943
82 May 13
22 -
28
Jun. 4 -
11 -
29
Aug. 18

19143
83 May 14
21
Jun. 4
11
18
25
Aug. 18

1913
84 Mqy 14
21
Jun. 4
11
18
25
Aug. 18

1941
85 Apr. 5


86 Apr. 1


-kS.6


39.92


55.27
54.68
55.00
55.17
55.13
-56.47


.57.52
.56.90
-57.21
-57.42
.57.51
-57.18
-56.69


-15.63
-45.25
-45.33
-45.5
-45.
-13.4
-144.6


-50,01
-45.80
-45.81
-45.9
-46,2.
-46.3
-15.2


q '' ----- I~- -


- --- --I IL- -"~'-- -------- -- --- ---------- '


I








Table 2 Cont'd.


Water levels, in feet, with reference to measuring point
Well Water Well W ter Well Water
No, Date level No. Date level No, Date level
-- --I. -- -


Orange Oounty
(Oont'd.)


1941
87 0.tt

i943
88 May 13
21
28
Jun. 4
11
25
Aug. 18

19413
90 May 13
21
28
Jun, 4
11
18
25
Aug. 18

1943
91 May 13
21
28
Jun, .4
11
18
25
Aug. 18


Orange County
(Cont'd.)


86


1943
May 14
21
Jun. 4
11
18
25
Aug. 18


-45.79
-44,62
-45.. 67
-4:5.74
-46.04
-46,13
-43.9


-45.


-29,98
*31,.75
-24 28
-24,34
-34.56
-30.3
-18,9


-51,94
-51.72
-51 .66
-51 .83
-51,97
-52.10
--52.25
-51.18


-42.78
-42.641
-42,08
-42.58
-42.73
-42.5
43.32
-42, 0


30.23
37.2


47.6


48.36
48.1
-47.12


-37.


1943
92 May 21
28
Jun. 4
11
18
25
Aug., 18

1943
94 May 13
22
28
Jun 4
11
18
25
Jul. 30
Aug. 19

1943
95 May 18
25
Jun. 10

1943
96 May 19
25
Jun. 10

1943
97 May 19
25
Jun. 10
.17
25
Aug. 19

1943
98 May 19
25
Jun. 10
17


-41,94
-43,72
-13.41
-.43.23
-43.7
-43.8



-52.25
--51 .61
-51 .97
-52 17
-52,25
-52.40
-.52.. 56
-49,6
-48,2


-46,25
-45.,60
-46.10


-34.28
-33.86
-34.60


-31,37
-31 .00
-31.67
-31,74
-31 .94
-30,52


-36.85
-37.63
-38.34
-38.46 1


Orange County
(Cont'd.)

1943
98 Jun. 25 -
Aug, 19 -

1937
99 Aug. 11 -

1943
100 Jun. 17 -
25 -
Aug. 19

1936
101 Nnv. 4

1934
102 Nov,

1943
103 May 21
25
Jun. 10

1943
104 May 21
25

1943
105 MIay 21
25
Jun. 10
17
25
Jul. 1
Aug. 10
19

1943
106 May 21
25
Jun. 10
17
25


-16.34
-15-95
-46 -66


-17.80
-47 44


-47.79
-47 43
-48,12
-48..20
-48 25
-18.25
-47,67
-16.95


-49.76
-49. 36
-50.09
-50.16
-50,27


1943
May 14


'1*-








Table 2 Cont'd.


Water levels, in


Well Water
Date a
No. Dat level

Orange County
(Cont'd.)


106


108


1943
Aug. 19

1943
May 23
30
Jun. 6
13
20
27
Jul. 25
Aug. 22


1936
110 Jul.

1943
112 May 26
Jun. 10
17
25
Aug. 19

1943
113 Jun, 25
Aug. 19

1925
114 Jun. 4

1943
116 May 26
Jun. 17
25
Aug. 19

1943
117 May 27
Jun, 10
17
25
Aug. 19


-49.15


-46.88
-47.31
-47.66
-47.75
-18.10
-47.70
-47.15
-B5.90


-41.


-44.53.
-45.05
-45.18
-45.29
-43.8


-38.16
-37.51


-22,


-44.56
-45.23
-45.43
-44. 24


-43.75
-44.00
-44.17
-'14.11
-42.9


feet, with referene to measuring point
Well W'Waer Wll Water
Date N. Dat lv
levril Nn l1vel


Orange County
(Cont'd,)


1943
118 May 26
Jun. 10

.1943
121a Jun. 14

1943
121b Jun. 14

1943
121n Jun. 14
17
25
Aug. 19

1923
122 Jun. 7

1923
124 Jul.

1926
126 Nov,

1925
127 Jnn,

1943
131 May 26
Jun. 10

1921
135 Sep,

1943
136 May 27

1943
138 May 26


-16,58
-17.12


-19.30


-24.80


-24.42
-24.85
-24.71
-23.58


-.,.


-55.


-19.


-28.


-45.92
-46.60


-43,


-45.85


-16.76


Jun. 10 -47.27


Orange County
(Cont'd.)


1943
139 May 26
Jun. 10
17
25
Aug. 19

1940
140 A r.

1943
141 Jun. 17
25
Aug. 19

1928
143 Jul. 1

1924
144 Aug. 2

1943
155 May 31

1943
156 May 31

19-13
157 May 31

1943
158 M1y 31

1943
159 Jun. 8

1943
160 May 31

1943
161 May 31
Jun. 17


-14.85
-15.37
-15.52
-15.61
-14.46


-53.


-42. Q4
-42.98
-11.4


-43.


-34.


-31.93


-34.97


-34.0


-37.28


-30.40


-34,28
-34.54


-..-~. _______________ _________


-




59


Table 2 Oont '.


irater levels, in feet, with reference to measuring point
Well Wator iell Water Well Water
N. Date level N. Dte level Date level


Orange County
(Cont'd.)


161 Jun. 25
Aug. 19

1943'
162 .May 31
Jun. 8
Aug. 20

1943
169 Jun. '1
10
17
25
Aug. 19

1943
171 Jun. 1
10
17
25
Aug. 10
19

1943
172 M1y 31

1943
174 May 31
Jun. 8
Jul, 1
Aug. 2

1943
175 May 31
Jun. 8

1943
176 Miay 31
Jun. 8
Jul. 1


Orange County
(Cnnt'd.)


-34.69
-33.0


-33.57
-33.65
-32.72


-46.15
-46.28
-46.37
-46.45
-45.1


-42.42
-42.56
-42. 69

-42.00
-41.5


-34.'63


-33,27
-33.48
-33.65
-32.50


-35 ,81
-36.00


-35.80
-35.99
-36.2


177 Jun. 3
Jul. 10
25
Aug. 20

1943
178 Jun. 3
10
Aug. 20

1943
179 Jun. 3
8
Jul. 1
Aug. 20

1943
184 Jun. 5
12

1943
190 Jun. 25
Aug. 19

1943
193 Jun. 17
25
Aug. 19

1943
197 Jun. 21
Aug. 21

1943
199 Jun. 23

1932
210 Aug. 21


Ormnge County
(Cont'd.)

222 Sep. 4 -56.8


1943
223 Sep. 4
11
25
Oct. 9
15
16
20
30

1943
224 Sep. 4
11
0.t. 15
20
30

1943
242 Sep. 1


-56.22
-55.4
-52.3
-54.6
-53.80
-53.92
-51.61
-55.72


-56.14
-55.2
-53.83
-54.65
-55.27


-38.


-39.31
-39.47
-39.79
-38.68


-112.98
-43.14
-43.23


-33.89
-34.10
-34.26
-33.26


-65.70
-65.78


-46.66
-15.5


-3;., 81
-34,85
-33.45


-23.11
-21.09


-47.0


- 3.17


- w qq~_~__y___1 ~


Lqke County

1943
17 Aug. 11 -12,33
S-- --- r l t .- .
Osi. ola County

1934
3 De". 21 / 2.66

1943
Aug. 9 / 2.6

Seminole County

1938
35 Nov. 18 /16.7







Table 2 Oont'd,


S Water levels, in feet, with reference to measuring point.
* Io. Date level No, Date level No. Date le (l

Saminnlo County
(Cont'd.)


1939
F~b. 2


1941
Aug. 28
Nov. 20

1942
Miy 30
Jul. 85
Aug. 18

1943
May 8
Junv 9
Jul. 30

1913
36 Aug. 26


/17.9


/18.9
/19.0


/18.2
/19.0
/18.5


/16.5
/16.6
/17.1


/ 9.7








: .BI LIOGRAY


Cole, W. (1941) Strttigraphii and paleontologin studies of wells
in Florida, Florida Geol. Survey Bull. 19.

-------- (1942) Stratigraphin and paleontoloa studies of wells
in Florida--No. 2, Florida Geol. Survey Bull. 20.

------- (1944) Stratiraphi_. and paleontol.gi, studies of wells
in Florida..-No. 3, Florid Geol. Survey .ull. 26 (in press).

Cooke, C. W., and Mossom, Stuart (1929) Geology of Florida, Florida
Geol. Survey, 20th Ann. kept. 1927-1928, pp. 29-227,
pls. 1-29.

Kingston, S. P. (1943) Contamination of water supplies in lirmstone
formations, Am. Water Works Asso.. Jour., Vol. 35, No. 11,
pp, 1i150-1156.

Matson, G. 6., and 6anford, Samuel (1913) Geology and ground waters
of Florida, U, S. Geol. Survey ,ater-Supply Paper 319.

Sellards, E. H. (1908) A reliminaI r report on the underground water
supply of centrall Florida, Florida Geol. survey Bull, 1.
---------- (1910) Some Florida lakes and lake basins, Florida Geol.
Survey 3d Ann. Rept., 1909-1910, pp. 43-76.

---------- and Gunter, Herman (1910) The artesian water supply of
eastern Florida, Florida Geol. Survey 3d Ann. Rept.,
1909-1910, pp. 77-195.

Stringfield, V. T. (1933) Ground-water investigations in Florida,
Florida Geol, Survey Bull. 11,

----------- (1936) Artesian water in the Florida Peninsula, U. S.
Geol. Survey Water-Supply Paper 773-0, pp. i-iv, 115-195,
pls. 6-16.

Stubbs, S. A. (1937) A study of the artesian water supply of Seminole
County, Florida, Florida Anad. Sni. Fro"., vol. 2,
pp. 2 -36,









Well Well
39 44


NE a


RECENT


H 4T


EoCOEN


0 L


Well
233


Well


z~il


OlinN

zzL socCIf.


MEAN
SEA LEVEL


OCALA


MIDDLE EOCENE


GEOLOGIC SECTION ALONG LINE A-A' IN FIGURES 7 a 9
Based on well cuttings and logs on file at the Florida Geological Survey


EXPLANATION


* Unconsolidated sand
and cloy .


Shell morl


SPhosphatic marl


Sandy, phosphatic
limestone

White to cream
porous limestone


Buff tobrown
recrystallized limestone


Cased portion of well
Uncased portion of well


I 0 .2 3

APPROXIMATE HORIZONTAL SCALE IN MILES


MAN --0
-EA .<


- 00







i
-200-i







-300 -


;---
~;;.-..Lfl.JJ_.
:...-
ii
;
;:.


.500-







-600- J


eoo
-800 -







-900-



.9501


FIGURE 1


c-
-
--








Well
56


PLE-Isgro a RECEIVr


OCALA


MIDDLE


EOCENE


-500


GEOLOGIC SECTION ALONG LINE B-B' IN FIGURES 7 a 9
Based on well cuttings and logs on file tf tne Florida Geological Survey


EXPLANATION


- Unconsolidated sand
ond clay


Shell marl


Phosphatic 'marl


.::. Conglomeratic
limestone

Sandy, phosphatic
limestone

White to cream
porous limestone

* [ i Buff to brown
recrystallized limestone


S Cased portion of well
SUncased portion of wel!


I 1 2 3
APPROXIMATE HORIZONTAL SCALE IN MILES
APPROXIMATE HORIZONTAL SCALE IN-MILES


PLEISTOCENE B RECENT


EOCrIE
MIDDLE


Well
222


Well.
46


MIDOLFe .0CE6


MEAN
SEA LEVEL


t

'-- ~---''~';--;~': --1 ~-: -~~ :~;'~ 'I


7-7Z


-1
.:-._.- -I.


.FdGURE 2


I


i .:-

L~i :1


.--

-I


'.
;;; ;---:---
-~
- .















PLE/S TOCENE


a RECENT


HA w r 9


MID0C kOCE.Nk


GEOLOGIC SECTION ALONG LINE C-C' IN FIGURES 7 a 9
Based on well cuttings and logs on file at the Florida Geological Survey


EXPLANATION


M-2M" Unconsoidated sand


f; Conglomeratic
limestone


Morl


Shell morl


Phosphatic morl


White to cream
porous limestone

White to creom
recrystallized limestone


BI Buff to brown
recrystollized limestone


] -Cosed portion of well
Uncosed portion of well

.5
APPIOXIMATE HOAIZINIAL SCALE IN MILES


Well Well Well Well Wal
94 224 82 1 3 Well


FIGURE 3


Well
49


PLEISTOCENE
a RECENT


MIDDLE EOCENE


PLEISTOCENE a RECENT


MIDDLE EOCENE


.-.-._. ,


:::
it i ;-
;...:r., `;
: i .;.i.- '-e,
i.7..:.i :;
r ~" r
i. .' I-.r


10o Well
1 54


64


MEAN
SEA LEVEL


MEAN -
SEA LEVEL


.400


-450


.ewo


.400


" --


slas


w





























66









70




65




60


65




60






m
z o


Z "


WATEi LEVELS IN THREE ORANGE. C
AND MONTHLY RAINFALL


-*1 .,.-


COUNTY WELLS


: .. ~ c


i1586~~: ''
.Lu'
''~`7


4z












B, ). .5' B A


a' I



OL 0L401
ov
OL1g BAIL




'A.

BALDB
00


G LLP


LLOOi






%AI


SD?1 $


T k Olt


rr




to

OIL elf'
KIT


EXPLANATION


---------1----------
Contour lines represent approximately the height, In feet,
to which water will rise with reference to mean sea level In
tightly cased wells that penetrate the principal artesian aquifer.
Contour Intervals 10 and 20 feet, changing on the 100-foot
contour line in Georgia.


APPsoSATliE SCALE IN UILCS


FIGURE 5
or o











L L AIN AU L
I I0
A 3 r -

CL ICH AMDO A L ANI T IC


BANC,
ow4 E s J.?
IN 7 .I


B?. B Be 1' B


iS9B*


00'1 IT--- C----


MAP REPRESENTING THE PIEZOMETRIC SURFACE IN FLORIDA
AND PART OF GEORGIA


r--


LA H 0 l CEA



OLUSI







01




A A tE 9 CHOSE




L -




0 L I t
9-1-/


-- ---- -- 4


I


r


DOOLYJ
LF-jj


-4


\\\U~"'~


-1 9,


~:


i











>





*00
221 219


\ -4



L 5AKE > _



VAR C FI




11 0 -16


O W NI M A K E ,. P





,-24
4~* 0-29o 0*% II3 0 *r *


/0 ( -1
21-4




~-34


0-AOW 0 2

50 -42

IsI
-%.-0









pm~.,191 116
0 "0', 92
A109 0(0-120 SOqr -


I 0-57 .LAECONWAY.1
IoR n ~ saw uawo "*New






MAP OF ORLANDO AND VICINITY
Rstsftoenih9Me Pftooengflk Swftm WWdS#owlq Loceons ~eof Well,







LAK FIGURE 7


EUSTS'.

SEXPLANAT ION
--ci Contour lines represent the height, in feet, to which
o, \-^ water would rise above mean sea level in tightly cased wells
SLAKE CO. that penetrate the Eocene limestones, August 1931.
(AMI T o LAKE CO. ^* y
S .*,o ,,0 ORANGE CO.
L. ADA LDL o Drainage well

S HARNE Supply well

0- r,) J'# ) Observation well on which altitude of
Measuring point has been established
ft154 L3 PRCVMR
O-so /da Well on which woter-level recorder J
B "3" 3 K5?& Y -35o" Wel7 which
S. I023 is installed

solo" na 'n Flowing spring


AoA ooKAMM


SR I ORANGE
o- -s o 3\









A K r lo ... ..ft ... ...MIE
O /


POLKAPOPKA "





POLK O O SC, ORLOCO.
L- ESEAT



























STOOPEKAG 210
so- LA L





LAKE GO )LA~f,


*MAP OF ORANGE COUNTY AND R IoNS 'OF ADJACENT COUNTIES
I nMAP OF ORANGE et ,.ndN o p s.
SR::" ep entlngth ; P I metr! : ^!,ong of tWel "
:**** **^^.^^.^*^^^t^ ^^ .^^-'^


1.


;
~-
~ ~ '
i '


^
s










FIGUjAE








00
cC- -~2c 0




-- -~ 64








/ 220
L ANE
'I .L~L N







~FAIR VIWW FI












*0-33
26)





100,'
ZISI
























0-i0-3o
~sWU5~





















XPLANLAIO10
0 t24L~












































-~t~mstalot Augst 150 -2-7
L~D-245 Ito












































241 15 e?
0 Itsr


30 -13 0 14
0 -12711
i ssf ~-c
140 99~i~


0 t36 193
139



Ik-O fZO 1210~.
91 15191
Is

0-13$ L.-17
-137 23 313
*--0 2
llOI109O--lo 11~0~-ll 91 ~,~o-, ~ .~(c~'5to
CLEAR,'
0-168
L AYE,, 9 5 C 0-3



/so O t ~JSM AMl
44* o8'_L0
no 9- os 140+-43P
175"
176;
-234-O 0-s ,I~ I
-,LAKE. -:4:3-Y~:P

155~,.,.:.,..~ :i~~c


S"urn.g point hao .eto L AKE'CONWA
bservation well on which alti tude of
m@o808 plyg jidit has beenabm ,1 ahed
. ,Wllon water-level recorder






MAP OF ORLANDO AND VICINITY
Representing the Piezometric Surface and Showing Locations of Wells


Ccalustern/ .w 'o
,'.,.,'' ; f. r/tar oe totMILESi


i'.




-.r
v




;r





S. FIGURE 9
i> i. .

LAVROEf o EXPLANATION
SL CO. Contour lines represent thp height, in feet, to which
0 9 \rLV Co. 6 s water would rise above mean sea level in tightly cased wells
LAKE o AKE C that penetrate the Eocene limestones, August 1943.
So ORANE CO.
oD t .0, o 0 Drainage well

\ \ LAK. 0 Supply well
-e 1 \ ^ Observation well on which altitude of
L; ie< q "" t SY\ A measuring point has been established
/ U \ -4oi" Well on which water-level recorder
S\O-e o s isinstalled
J \s t\on ~ Flowing spring



*,, .AL 'A L1 L













"I 1 "' "| /








MAP OF ORANGE COUNTY AND PORTIONS OF ADJACENT COUNTIES


















Representing the PiozometricSurfaco and Showing Locations of Wells
t M o9..
.. '00









J eo
0 1 % &


I o 1 L. ES
100P K1LIG O io










i 6 Pieomeri-0u64 Lad oiLcts &
Art....................

~h~J ~ ~ a ()I W I QLU10 UWort jIl








r


&/


~~~~-~~3

L~p


/ *58 0-lee
H .a'-~. ,.,












8 O-OO-ae --




226 0 1 96
S-S 0-166 0-0







-272 029 3t8O 2 9
00- 4 0 4 14OS 140_ Ib
S8 0 -82 0-24 ( 0-200 \



o12 Igo b,, k/ 70 <>- ,,


















-74/0" "IME
9 a5 .1
,.O '\.1 ..e I :


226 go 0-16 40 .4
A4# 180

944 0-122
















0- -48 *10 876 :30 90 3
10- M~C T24$ 1 1T Ila 0 _3
\3 .O 0 -14 40











































2 37' .1

EXPLANATION O IS9 4)-A K,8

Contour lines represent the height, in feet,
Which wter uld rise abovemean vel





















in tightly cased wells that penetrate the Eocenes & A
o Drainage we ll




















Supply well
mea.uring point has been established ~~ 0- 1







'* l on which iw a ,e d a-I.,-
OsLEA .. Oulle well A.. \ j
0 11. ,S w ,AO



I* r^- V OZg y















S; Contwur linrm represent tha beight,.In fest,


r i


Sg-68


MAP OF ORLANDO AND VICINITY

Representing the Piezometric Surface and Showing Locations of Wells

0 MILES

CodoAr 6PiarAwim *


S,,...o "

,,2\ 4- )
C.?ss ^f r-pTL 1


r-- Aw I P, I -


\I LL1,

x


i;!

1;"1
5''''
;: ~ .~.
.
i.~ ,:
'''~


---


Fbr A"-----


;r
b








r/crrr,
Ismrw
.
i ci'l~':
i:"
re
r
:;'' ;...91:~~
.. `T,.:;~
~i v i .~
~ r




,, ~-;.I$::.;I:~
'."'"""
P~r~pi.

.~. ..~ ::
1..

l.t3~C;~
,r ..~
:~O-sa'
;fi~: '' '-
"'
~: ~;:: ~S
"r3C~'
I:
:str ta,~i
~
~
: ~.:.~
.~ "1~1~1 ,i
: ::~T~ ~:',~I'~C.
': ~ ~ .' `:. '.:::I:
''' ~`
L. j
.r: ':';''

"..~;I: ~"
r I:i
.r" ';I
"... .-~.~. .c~
.,.*
: '
I :
'
:'j .;~ ct:
.u...
: :.(~~::
"'-:
: '.~.r~i .,
: .. ;: ....
L;~ru~r ~
.i.
.":;:7 1~. (?l.!(..ii:l ~,l$:~r:
~;,4~9 ; :I.,h..L":
gt. .... :I

..r ...


~ ;.;..'~.
'' ''
,
~ .:.: '
.';'i"
~t~7 :
'' .'


i ~i5~ :. : :~..:':
.: ~. ""
"' :~ ..
..
~~ LI'l:

1"42 ~
~cp~
'''




'

:~
I























.cb;
/6'







FIGURE II


I


No 9


No. 146c No. 19


100
78
50 -








-100
21 -
"0 -


















.300 -
-1
u,
hi

< -300 -
U)
<(
z
4
U




0
I-
I.-
-I




-500





-600





-700 -





-100
80


0 50 100
RPMM.


No. 110


=
-






-





-A















0 100 200 300
REVOLUTIONS PER MINUTE


0 50 100
R.P.M.


0 60 t100
RRM.
o oo


No. 80


No. 92


- -



















0 SO 100
R.P. M


No 91

























1
?-
I F





























0 100 200
R.RM.


Question marks (?) indicate that depth is uncertain.


35806
GRAPHIC REPRESENTATION OF RELATIVE VELOCITIES OF FLOW AT VARIOUS DEPTHS
IN FIVE SANITARYAND THREE DRAINAGE WELLS.


No. 94




-..----



























0 50 100
RP.M.


0 100 200 300 400
REVOLUTIONS PER MINUTE


I .


LEGEND

Velocities are expressed in revolutions
per minute of current meter.



Reported depth of cased portion
of well.


Uncased portion of well.


Obstruction below which current
meter would not pass.




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PAGE 1

FLORIDA STATE BOARD OF COISERVATION S. E. Ri.e, Supervisor rf Conservation FLORIDA GEOLOGICAL SURVEY Hrnpan 3unter, Direitr REPORT OF IIPESTIGATIOYS NO. 5 GLOUiD-WATER CONDITIONWS INT ORLAI'DO AD VICINITY, FLORIDA By A. G. Unklesbay Prepared by the Geolngiial Survey, United States Departnrrenr rthe Interior, in cooperation with the Ki.r'ida Gaologial Survey and the Corps of Er;:.ineers, U. S. Arr.y 1944

PAGE 2

4'00, AGRI-' ,r CULWRAL LIBRARY

PAGE 3

2 Contents Manusriot page Introdu t ion. ... ... ....... ...... ............ .. ... .. ... .* .. 4 Topography and drainage........................................ 5 Geology.........,.... ..... .., ....... ............................ 6 Geologin formations....,........................... ......... 6 General statement ............................. ........... 6 Eo ene ...... ... ..... .............. ...... ............. ..7 Middle Eoene... ...... ... ................ ... ........ .9 Onala limestone........ ...... ...... ... .. .. ......... 10 Mionene.. ....... .. ... ... ..... ....... ....... .. 11 Upper Iviio1ene,.. .. ....... .... ............. 11 Hawthorn formation.................................. 12 Pleistonene and Re1ent....,.,......................... 13 Structural geology... .... ...... ...... .................... 13 Ground Water .. ......... ... .. ................. 14 General senditions,..*.... *... .................*....... ... 14 Piezometrin surfane*........ ...... ....... .............. 16 Springs.............. .... ...... ..... ... ........... .........19 Wells. ... ... .. ............. ........ ......... ..... ..... 20 Supply wells... ,................... ....... ................. 20 Drainage wells................ .. ........... ......... ... 020 Sanitary wells........ ..... ... ..... .......... ......... 23 Exploration of drainage and sanitary wells.................. 24 Method.... ..... ..... .... ....... ....... ......... ...* 24 Velonity measurements in wells.. ......................... 26 Possibility of pollution,............... ................ 30 Table 1, Well records.............. ...... ............ 33 Table 2, Water-level measurements.................... ... 49 Bibl iography ...... ... .., ..... .. ........... 61

PAGE 4

3 Illustrations Manusrript page Figure 1. Geologil. section along line A-A' in Figures 7 and 9....... 62 2. Geologin seqtion along line B-B' in Figures 7 and 9....... 63 3. Geologin sention along line 0-C' in Figures 7 and 9....... 64 4. Graph showing flutuations of water levels in three Orange County wells... .. ..... .......... ............... 65 5. Map representing the piezometri' surfane of Florida and part of Georgia ................... ,,................ 66 6. Map of Orlando and vicinity representing the piezometric surface (August 1930) and showing lonations of wells.... 67 7. Map of Orange county and portions of adja.ent nounties representing the piezometri.8 surfa.e (August 1931) and showing Incations of wells..,....,...,.................. 68 8. Map of Orlando and vininity representing the piezometrii surfa-e (August 1931) and showing lo.ations of wells.... 69 9. Map of Orange County and portions of adjaient %ounties representing the piezometrii surfane (August 1943) and showing lonations of wells,............................. 70 10. Map of Orlando and viinity representing the piezometrin" surfane (August 1943) and showing the lonations of wells 71 11. Graphic representation of relative velonities of flow at various depths in five sanitary wells and three drainage wells............... ............ ,,........... ......... .72

PAGE 5

4 INTRODJUCTIOF This investigation was made for the purpose of manping the loiations of the numerous drainage and sanitary wells in Orlando and viinity, to nompile data ron.erning these wells, and to assemble geologic and hydrologin information relative to the effect of such wells on the ground-water resouries of this area. The investigation was under the general supervision of 0. E. Meinzer, Geologist in Charge of the Division of Ground 4Water, U. S. Genlogi!al Survey, and Herman Gunter, Director of the Florida Geological Survey, and under the immediate supervision of V. T. Stringfield and H. H. Cooper, Jr., of the U. S. Geological Survey. Captain A. B. DeWolf, of the Corps of Engineers, U. S. Army, made preliminary arrangements for the investigation and gave many helpful suggestions. During the field work much valuable assistance was given by Lt. Col. J, P. Larsen and EIr. D. D. Riddle of the U. S. Engineers Offie at the Orlando Air Base. Mr. F. L. Holland, of the Oran;ge County Road and Bridge Departnent, supplied inforxmtion regarding County-owned wells, and aided in the loaition of these wells. 'r. A,.B. Herndon, City Engineer, and ,r. Jesse Burkett, of the Orlando City Engineers Offine, furnished information onieerning City-owned drainage and sanitary wells, and furnished pumping equipment and operators during the well exploration. Valuable suggestions were made by Miessrs. J, B.,Iiiller and Fred Eidsness of the Bureau of Sanitary Engineering, Florida State Board of Health. Well logs and cuttings of numerous wells were supplied by Mr. Clyde Freeman, of Libby and Freeman Company, and Mr.: J,E. Cousins, of Layne-Atlantii Company, Mr, .Freeman also gave freely of his time to aid in the lonation of many of the wells.. The altitudes of the measuring points

PAGE 6

5 on many wells used for water-level observation were determined by leveling parties supplied by the U. S. Engineer Department. TOPOGRAPHY AND DRAINAGE Orange County may be roughly divided into three physiographic regions. The eastern part of the County, between the St. Johns and E~onloikhatnhee Rivers, is a relatively flat lowland ranging in altitude from about 10 feet along the St. Johns River to as much as 60 feet in the area just east of the Econlookhatnhee River. This lowland contains many swamps and marshy areas. Most of the lowland is drained by eastward flowing tributaries of the St. Johns River, but the extreme western part is drained by short tributaries of the Econlookhat 1hee. The region west of the Ennnlookhatehee River, extending nearly to Orlando, 'onsists of a series of northwest trending, parallel, elongate ridges and intervening elongate low areas. Altitudes in this region range from 50 to 80 feet. The northern portion of the region is drained by a branch of the Eronloekhatcrhee, and the southern portion is drained into Lake Hart, Lake Mary Jane, and other smaller lakes. Except for the lowland area in the headwater region of the Wekiva River, most of Orange County west of the region of parallel ridges is a rolling upland whi.h extends northward and westward into Seminole and Lake Counties, and southward and westward into Oseola and Polk

PAGE 7

6 Counties. Within Orange County, the upland ranges in altitude from 70 to 140 feet and has a maximum local relief of about 50 feet. This upland area contains numerous closed depressions, many of which contain lakes or ponds. Some of the depressions, espeoially the steepwalled ones, appear to have originated as the result of lo.al subsidence of underlying formations consequent to the collapse of caverns and solution channels in the substratal marls and limestones. There is very little surface drainage in the upland area. vith the exception of drainage into Howell Creek and Wekiva River, which flow northward and eastward to the St, Johns River, and of drainage into Shingle and Reedy Creeks, which flow southward to the Kissimmee River Basin, all natural drainage is into the .losed depressions, Probably many of these depressions are drained by seepage through pervious material into the underlying limestones. GEOLOGY Geologic Formations General Orange County is mantled by unncnsolidated sand and clay, and although the topography varies from a gently undulating lowland to a rolling upland, there are very few exposures of the underlying formations. The closed depressions in the upland, which might be expected to provide,exposvres, are either filled with water or mantled Sby sand. Sandy, phosphatic limestone of the Hawthorn formation is

PAGE 8

7 exposed at Rook Spring, about five miles north of Apopka, and red clays, which are probably residual from the Hawthorn,' are exposed in several clay pits in the northw~ternr part of the County. In the nbsenco of sufficitent exposures, information regarding the characteristics of underlying formations must be obtain.d from studies of well cuttings. Such studies indic-ito) that the formations penetrated by wells in Orarlge County and ndj.acent regions are, in nsconding ordor; middle Eocene limostone, Oca9l limestone (upper Eocuno), Hawthorn formntiou (lower Miocene), rmrl b..ds which mn-y be of Chootnwhatchoe rC~t (upper fiocena), and surficiil sRnd t'id clay (Ploistocenu and Rec.;nt). Eocene In publica-tisns that -:pposar.d prior to 1937, all Eocene iimestones penetrated by we31s in central Florida were generally referred to the Ocala. Although it was genuer-lly recognized that the lower part of the section penetrated contained bads older than typical Ocala limestone, the term Ocal had not been restricted, and.the contact between the Ocala and underlying beds had not boon defined. Stringfield (1936) statud: "The lithilogy of the Ocila nd the underlying Eocene rooks is similar, and it is therefore necessary to distinguish the two units on the basis of a study of the fossils collected from the well cuttings. No diagnostic fossils have beeon reported near the contact, and the lower limit of the Ocala has therefore not been definitely dbtermined."

PAGE 9

8 Geologin formatinns penetrated by wells in Orange County Age Formation Thickness Chara"ter Chiefly unionsolidated Reo.ent and 1 sand interbedded with Pleisto1ene 0-100 .lay. Yields water to shallow wells. -. .-......... --' ..Upper Light to dark gray shell Miocene? Chontawhate.hee? 30-40 marl. Interbedded marl, sandy L :phosphati mairl, .onLower 'glomerati' limestone, Miocene Hawthorn 45-200 .lay, and silty limestop SWater under artesian pressure. SWhite to nream, porous Upper Orala 0 foraminiferal limestone. Eonene Limestone Important artesian i aquifer. SI 200 Wite to nream, porous Middle I Undifferforaminiferal limestone. Eocene entiated Lighit buff to brown, i I porous to dense, reS550-? rystallized limestone. Important artesian aquifor. V4

PAGE 10

Stubbs (193?) tentatively assigned a middle Eocene age to a zone which he called the "Coskinolina Zone." According to Stubbs, this zone ". lies directly below the Ocnla formation" and well cuttings from it ". .. revealed a predominance of thi Foraminifer Coskinolina and an absence of typical Ocaln Foraminifera." The forms referred to Coskinolina by Stubbs are now recognized as Dictyoconus cookei (Moberg). Cole (1941 and 1942), reporting on wells in Polk and Levy Counties, used the uppermost occurrence (within the Eocene) of Dictyoconus cookei (Moberg) to define the upper limit of the middle Eocoone. At the same time, he divided the middle Eocene into seven zones, the uppermost of which he called the Dictyoconus cooksi zone, Later (1944) Cole included this zone, with others, in the Lisbon formation as extended westward from Mississippi and Alabama. Middle Eooene Logs of three wells in Orange County that are 1,000 feet or more in depth indicate that the middle Eocene limestone is at least 750 feet thick and that it may be roughly divided into two distinct portions. The lower portion is at least 550 feet thick and consists of light to dark brown, porous, recrystallized, dolomitic limestone, With a few irregularly spaced beds or lenses of dense, reddish brown, cherty limestone. Disseminated throughout this lower portion are numerous minute inclusions of pyrite, and a few molds and casts of small molluscs, Owing to recrystallization, however, the fossils cannot be identified.

PAGE 11

10 The upper portion is about 200 feet thick and nonsists almost entirely of porous, white to cream, highly fossiliferous, foraminiferal limestone, in which Diity~ronus cooket is very abundant, Interbedded through this upper portion are thin beds of light buff, porous, renrystallized limestohe. The permeability of the middle Eonene limestones allows circulation of water, and the airculating water has formed caverns and channels which are often ennountered in drilling. The recrystallization so prevalent in these limestones is due to the precipitation of material from mineralized solutions and the deposition of this material in interstines in the rocks, Ocala limestone The term, Onala limestone, is here applied to the Eocene limestone above the top of the middle Eocene as defined by Cole (1941 and 1942). The Ocala is penetrated by most wells in Orange County, but a few snattered wells, whith appear to have been drilled in sinkholes or solution cavities, enter middle Eonene beds immediately beneath the Hawthorn. In such wells the interval normally onnupied by the Onala and upper beds of the middle Eocene consists of a heterogeneous mixture of Hawthorn marl and limestone with irregularly disseminated small fragments of Unala and middle Eocene limestone (see well 82 in figure 3). The logs of wells that penetrate the Onala indicate that it ranges in thinkness from.4 to 120 feet. As the contact between the Onala and the underlying middle Eocene limestone appears to be

PAGE 12

conformable, the variations in thickness of the Ocala suggest that it was subjected to surface erosion prior to the deposition of the Hawthorn. The Oala in Oala in Orange County is similar to the Ocala exposed in other parts of Florida and consists of white to cream, porous, relatively pure limestone, composed almost entirely of foraminifera tests, It also lontains molds and lasts of larger molluscs and echinoids. The permeability of this limestone allows free nirnulation of water, and the solvent action of the water has resulted in the formation of subterranean navities and channels. Mionene Upper Mionene There is some uncertainty regarding the presence of upper Miocene deposits in Orange County. Cooke and Mossom (1929) do not map, or mention the oncurrence of, deposits of this age in this area. Stringfield (1933) mentions the occurrenne of the upper Mimene Chontawhatnhee formation in Orange County but does not Qive information nonrerning its thinkness or areal extent. A few of the wells in the County penetrate 30 to 40 feet of shell marl immediately under the surfinial sand. This marl contains molluscs and foraminifera which appear to be lontemporaneous with Chontawhatthee forms, but proof of this age relationship will require detailed examir nation of many well nuttings. The shell marl may represent highly fossiliferous portions of the Hawthorn, or it may actually be a deposit

PAGE 13

12 of Ohoitawhatnhee time. As the shell marl has been reported in only a few wells, its areal extent is not known. In the profiles aniompanying this report (figs. 1, 2, and 3) this marl is tentatively referred to the Hawthorn formation. Hawthorn formation The Hawthorn formation, whinh unionformably overlies the O'.ala limestone, nonsists of a series of sandy, phnsphatin marl beds and interbedded layers of limestone. It ranges in thitkness from 45 to nearly 200 feet. The thinkness is dependent upon the surface elevation and the irregularities in the surfane of the O.ala. The lower part of the Hawthorn is predominantly a light buff to greenish gray, silty, granular limestone whioh contains many small brown phosphatio grains. This limestone appears to be interbedded with thin layers of sandy phosphatin marl, The upper part of the Hawthorn onnsists of alternating beds of gray, sandy, phosphatin marl and very fine, thinly laminated, alnareous noly, A well indurated, coarsely nonglomeratin limestone is penetrated at irregular intervals in many of the wells. This non;lonerate nonsists of a gray limestone matrix .nntaining quartz sand, phosphate pebbles, fish teeth, and rounded, solution-pitted fragments of bluish-gray lim stone. The only indurated rook exposed in Orange County is a nart of the Hawthorn formation, Rook Spring, about five miles north of Apopka, issues from a nave-like opening at the base of a vertial r

PAGE 14

13 bluff in which a thickness of about 15 feet of buff to brown, sandy, phosphatic limestone is exposed. Wekiva Spring, about three miles northeast of Apopka, also issues from an opening in the Hawthorn formation, but the opening is belew the water level. Elsewhere in the northwestern part of Orange County, rod clays, which are probably residual from the Hawthorn, are exposed in several clay pits. Some of the sand and limestone beds of the Hawthorn formation are fairly permeable and will therefore yield small quantities of water to wells. However, the Hawthorn also contains relatively impervious layers of marl and clay which act as confining beds for the artesian water in the Ooala and middle Eocene limestones. Although Rock Spring and Wekiva Spring issue from openings in the Hawthorn, this formation may not be the source of the water. Probably the water flowing from these springs comes from the Ocala aid middle Eocene linmstones, and flows to the surface through crevices and solution channels in the Hawthorn. Pleistocene and Recent Overlying all other formations in most of Orange County and large portions of adjacent counties is a covering of unconsolidated sand interbedded with clay, which ranges in thickness from a few inches to nearly 100 feet. The sand yields small quantities of water to shallow driven wells,

PAGE 15

14 Struntural Geolog Orange County lies on the southeast slope of the Ocala uplift, where the general dip of the Ocala and middle Eocene limestones is southward and eastward. Structural features cannot be determined from the altitude of the upper surface of the Ocala because this surface is irregular owing to solution and erosion. However, the top of the middle Eocene is more regular, and its shape, as determined from studies of well logs, suggests that a minor structural basin exists in the vicinity of Orlando. Other minor .structural features may exist, but they cannot be determined until more subsurface data is obtained. GROUND 'ATER General Conditions Small supplies of vwter are obtained from shallow wells fnding in the surficial sand, but the water from these wolls is often colored and is susceptible to pollution by seepage from the surface. Also, some wells obtain moderate quantities of water from pervious layers of the Hawthorn formation. However, the principal water-bearing formations of Orange and adjacent counties are the Ocala and middle Eocene limestones. The water in the Ocala and middle Eocene limestones is under artesian pressure, that is, when the confining beds are perforated it will rise in the well to a level higher than the top of the waterbearing bed. In the lowlands along the St. Johns River, in eastern Orange Uounty and northeastern Seminole County, and around the margins

PAGE 16

15 of Lake Apopka, the water in wells penetrating the Eocene limestones will rise above the land surfane. Also water in wells penetrating these limestones will rise above the surface in the lowlands of Osceola County in the headwater region of the Kissimmee River. Some of the drainage wells in OrlandA and vicinity have flowed during periods of heavy rainfall. In the summer of 1930, well 47, a drainage well nortbwest of Orlo Vista, began to flow and flooded the highway to a depth of about two feet. At the same time, some of the wells in southeastern Orlando ceased to drain water and allowed streets to become flAoded. Measurements made during th3 last fourteen years show that the water levels in Orlando and vieinity flu.tuate considerably. FActors contributing th tese fluctuations are: variations in rainfall in areas where the formations are recharged naturally or artifinially through wells; changes in the rate of pumping from wells; and changes in atmospheric pressure, -Flgtuuitions of the water levels in three wells in Orange County are shown graphically in figure 4. In this graph, measurements of water levels aro indicated by small nir-les, and the probable general trends are represented by broken lines. The rainfall values shown on thio griph represent averages of the monthly totals reeded at Weather Bureau Stations at'Orlandf and Orlando Air Base in Orange County, and at Lakeland, vinter Haven, and Lake Alfred, in Polk County. These rainfall stations were selented bea.usa the water-level flutuations in Orlando and vicinity are related to variations in rainfall not only at Orlando but als ova the natural

PAGE 17

16 recharge area which extends over Polk County and parts of Orange, Highlands, and Lake Counties. The highest stage for which water-level measurements are available ocnurred in the summer of 1934, and the second highwest in the summer of 1930, The lowest stage for whinh measurements are available oc~urred in the spring of 1933, but measurements made during the summer of 1943 indicate a stage nearly as low as that of 1933. Automatin water-level recording instruments have been installed on well 47, near Orlo Vista, and on wells 923 and 224 't the Orlando Air Base. It is intended that these recorders be maintained indefinitely to obtain continuous records of water-lnvel fluetuations. Piozomotrin Surface The height to which water will rise above mean sea level in tightly cased wells penetrating the Ocala and mid-Eoacne limestones in Florida and part of Ueorgia is shown by the contour lines in Figure 5. The imaginary surface represented by those contour lines is called the piezometrin surface. In order to plot a map of the piezomotric surface for a given area, measurmeonts of the static water levels, in feet above or below a fixed reference point, are made on a number of wells throughout the area. The altitudes of the reference points are determined and the water-level measurements are added to or subtracted from these altitudes to obtain the altitude of the water levels in the wells. These water-level altitudes are then used as nontrols in plotting the contour lines representing the piezometric surface,

PAGE 18

As the water levels fluctuate the piezometrin surface nhanges in shape and altitude, and when represented for any one time shows only approximately the conditions for any other time. Although the general form of the surface is constant, variations in local conditions may cause some change in details from time to time. In general, areas where the piezometric surface is hih are regarded as areas of recharge and areas where it is low are regarded as areas of discharge. The horizontal movement of the water in the aquifer is in genlral from the hidi areas of the piezometric surface toward the low areas in directions normal to the contour lines, Thus it ncn be seen from Figure 5 that the movement of the water in Orange County is in general toward the northeast. The lat region of Orange County is part of a large recharge area whinh extends over most of Polk County and into the lake region of northwestern Highlands County and south-eontral Lake County. Water-level measurements have been made in Orlando and vicinity at various times in the past. From measurements made by Stringfield in 1930 and 1931, and measurements made during this investigation, maps representing the piezometrin surfanes for May 1930, August 1931, and August 1943 have been plotted. A study of these (Figs, 6-10) shows that the general shape of the piozometric surface is persistent, but that it varies from time to time in altitude and in local details. Anotnble eharacteristic of the piezometric surfaces shown in Figures 7 and 9 is tle shelf-.like feature in the vicinity of Orlando. This feature results from local recharge through the drainage wells.

PAGE 19

18 The piezometric surface for August 1930 is representative of high water levels, and its most striking feature is the mound in southeastern Orlando. This mound is undoubtedly due to recharge through drinage wells and lakes, Figures 7, 8, 9, and 10 represent the piezometric surface as of August 1931 and August 1943. Its general shape at these times was approximately the same except that in 1931 was higher. The mound in southeastern Orlando, so prominent in 1930, was not present in 1931 and 1943, but a anall spur in the same area indicates that the shape of the surface is influenced by local recharge even at tim3s of low water levels. The Ocala and middle Eonene limestones have.bi-n separated geologirally on differencas in texture, color, and fossil .ontent. Hydrologically, however, they appear more or less as a unit, that is, the water lavels in wells drilled into the upper part of these limestones rise to the same heights as in walls drilled to deeper horizons. In order to determine and study the relationship between the water in upper and lower portions of the Eocene aquifer, two wells were drilled at th Orlando Air Base. One of these, well 223, is 453 feet deep and is cased to 180 feet; the other, well 224, is 1,000 feet deep and is cased to 569 feet. Records from automatic water-level recorders installed on both wells indicate that the water in the two wells rises to the sam. level, and that the water levels are affected similarly and simultaneously by the pumping of nearby walls. This shows that the upper and lower parts of the aquifer are under equal

PAGE 20

artesian pressure and that there is probably free vertical exehange of the water within the aquifer, Springs Two large springs, whiih yield water from openings in the Hawthorn formation, omur in Orange County. Rook Spring, about five miles north of Apopka, in the north half of section 15, T. 20 S., R. 28 E., is one of few springs in Florida whinh issue from an opening above the water surface. This spring issues from a nave-like opening at the base of a 15-foot vortical exposure of brown, phosphatio, sandy limestone, and flows into Rook Spring Run and thenne into the Wekiva River. The discharge of the spring is about 50 to 60 second feet. Wekiva Spring, about three miles northeast of Apopka, in the northeast portion of section 36, T. 20 S., P. 28 E., issues from an opening below the water surface and flows into the Wekiva River. The disoharge from this spring is about 65 second feet. Sanlando Spring is smLler than either of the springs mentioned above. It is in Seminole County, near the border between sections 2 and 3, T. 20 S., R. 29 i. The opening of this spring is below the water surface, and overflow from the spring basin flows into the Little Wekiva River.

PAGE 21

20 Wells Wells have been nonstrunted in Orange County for two purposes: to obtain water and to dispose of water. A few wells hqve been nonstrunted to serve both purposes, that is, they are used to obtain water for irrigation during dry seasons and to drain surplus water during wet seasons, Supply Wells With the exception of a few wells ending in the surfinial sand, and a few drawing water from the pervious layers of the Hawthorn formation, the supply wells of Orange County are drilled into the Opala and mid-Eoene limestones. Most of the privately-owned supply wells used to obtain water for domestic and irrigation purposes are less then 200 feet deep. t'ells used for industrial or municipal supplies range in depth from 200 to 1,000 feet. During the present investigation emphasis was plac.d on the colloetion of information relating to drainage and sanitary wells. Accordingly, the Table of Well Recmrds (Table 1) anompanying this report contains Information nn only a few supply wells. Drainage Wells Annording to Sellards (1908, p. 62-63 and 1910, p. 71) and Stringfield (1953, p.. 21), the first drainage well in Orange County was drilled about 1904. In April of that year, a sinkhole (probably Lake Greenwood), whi^h had previously earried away surplus surface Swater through its connentions with underground drainage ehannels,

PAGE 22

21 berame logged, and a onssiderable area in southeastern Orlando was flooded by heavy rains., After several unsurccessful attnmpts to reopen the sink, a drainage well was drilled as an experiment, In August, a two-innh test jell was drilled, and it proved successful enough to warrant the construction of larger wells. The next year two more wells, one 8-inah and one 12-inch, were completed and these drained a large part of the flooded area. Those wells, however, were not sufficiont to drain the area completely, so in the winter of 1906 two more 12-inch wells were arnstruited, and by February 1907, a fourth 12-inch wll had been nompleted, By the end of March 1907, the water was almost bark to its normal level. In the following years many wells were drilled for drainage, not only to dispose of surplus water during storms, but also to lower and control lake levels, and to drain lowlands rmd swamps to make additional land suitnble for aultivation. Sanitary wells were also constructed to drain away the effluent from septic tanks. The most intensive period of drainage well constru~tion was during the years 1926, 1927, and 1928, but such wells were still being drilled in 1943, In August 1943 at least 182 drainage wells were in operation in Orlando and vicinity. These may be grouped as follows': 90 Storm drainage wells, owned by the City of Orlando. 40 Storm, swamp, and lake drainage wells, owned by Orange County. 12 Drainage wells at the Orlando Air Base. 40 Privatelyand munintipally-owned .drainage wells used for various purposes, including at least one used to dispose of citrus pakking waste.

PAGE 23

22 The wells used for storm and swamp drainage range in depth from 120 to 1,000 feet, and are vased to depths rangins from 74 to about 400 feet. They range from 5 to 18 inches in di'mater, The range of depths to which drainage wells are drilled and cased shows that surface water is being introduced into a considerable thickness of Ocala and mid-E~cene limestones and into the lwer portion of the Hawthorn formation .Drillers' records indicate that some of the wells end in open cavities and that others penetrate only permeable limestone, In either case the drained water mingles with, and becomes part of, the ground water, and moves in the direction of the slope of the piezometric surface. At a time when a large quantity of wat.r is entering a well, a slight mound is created in th3 piezometric surface in the immediate vicinity of the well so that the drained water moves for short distances in all directions from the well. The capacity of a drainage well is dependent upon the diameter of the well, the permeability of the receiving formation, and the head under which water flows into the well. The cnpacities of the wells in Orlando and vicinity range from less than one hundred to as much as several thousand gallons a minute. Well 50, at the southeast edge of Lake Lawne, is reported to have a cnpnaity of 9,500 gallnns a minute (Stringfield, 1933, po' 22),

PAGE 24

23 S;~ a nitary Wells The term, sanitary well, is used to designate a wall which receives sewage or the effluent from septic tanks or sewage treatment plants. There are at least eighteen sanitary wells in Orl-ndo end vicinity. Seventeen of these, owned by the City of Orlando, are used to drain septic tanks at eloven sncttered loclities in the City. Renords of totrd depths and depths of vasing are not availible on i1 these wells, but those for which rn6ords are available range in depth from 231 to 863 feet, and are .ased to depths ranging from 67 to nearly 400 fe3t. The casings in these wells range from 8 to 12 inches in diameter. In addition to the seventeen wells owned by the City, another owned by the Army reneives effluent from the sewage treatment plint of the Orlando Air Base. This well i.s 431 feat deep 9nd is nased to a depth of 183 feet with 10-inch casing. As these sanitary wells are widely separated, and as they range greatly in total depth and depth of easing, it is evident that septic tank and sewage treatment effluent is boing introduced into a considerable area and thickness of Ocla and mid-Eonene limestone. A few of the wells vkiich are not deeply icsed probably introduce some offluent into the lower part of the Hawthorn formntion. (~~~~~~~

PAGE 25

24 Exploration of Drainage and Sanitary Wells One of the most frequently asked questions connerning drainage and sanitary wells is "Where does all the water go?" The water entering such wells mingles with, and becomes part of, the ground-water supply, but it is desirable to know at what levels the water is being absorbed by the underlying formations. Although drillers' records show how much of a well' is cased and how much is uncased, no information has been available to indicate the depths of the strata that aqtually absorb drainage water and sewage effluent. To obtain such information eight wells in the vininity of Orlando were explored with a deep-well current meter, Method The deep-well current meter used consists of a srew-propellertype rotor mounted, with its axis vertical, on a pointed bearing inside a iylindrinal brass case. The upper end of the rotor axis is an eccentric shaft ihieh touches a conta.t wire each time the rotor revolves, thus opening and elosing-an eleotric iircuit. The conta.t wire is attached to a binding post which is insulated from the meter case, The meter is enlosed in a five-foot length of three-inch pipe, which proteAts it and prevents it from being carried into scverns by the velocity of the water, The assembly is lowered into the well at the end of a double-conductor cable. .This cable consists of steel wire wrapped around a oren of insulated copper wire. The .cpper wire is connected to the binding post on the contact chamber and forms one

PAGE 26

25 side of the electric cirnuit; the steel wire is connected with the three-inch pipe, whinh is in enntnt with the ease of the meter, and forms the other side of the 'circuit. The electric current is provided by a dry-cell battery, and a headphon connnected into the circuit produnes -sound eash tima the rotor revolves. Water flowing through the meter will cause the rotor to revolve at a rate proportional to the velonity of the water. In use, the meter assembly is lowered into a wall a few feet at a time, and the revolutions of the rotor at the several depths are timed with a stop wateh. The rate of revolution at the various depths indicates approximately the relative mean velocities of water at those depths. The interpretation of the observations is based on the expression, q = av, in which & is the quantity of water per unit of time, a is the' cross saetion area of the well, and v is the mean velonity of the water passing through the well. Throughout that portion of a well which is lined with tight easing of the same diameter the velocity should be the same, inasmuch as the quantity of water moving through that portion must be the same at all depths and the crossrsenction area is constant. However, in the uncased portions of a well differences in velonities at various depths may be due either to differences in the cross-seation area of the well or to differences in the quantity of water moving throuh it. The observed relative velocities in drainage and sanitary wells are not as consist'nt as those in flowing wells because the current meter ensemble wab designed to measure upward flow of water instead of dowhnwrd flfow, and because the fall of water from the mouth of the well apparently produces turbulence to a considerable depth.

PAGE 27

'26 A progressive decrease in velocity with incrasing depth indicates that the water entering the well is being absorbed by the surrounding formations. When a level is reached below which the velo~ity is nonsistently zero, it seems reasonable to assume that the water entering the mouth of the well is not passing below that level and must therefore be leaving the well and entering the formations above. Valonitl Measurements in Wolls During this investigation, five sanitary wells (Nos. 9, 19, 80, 110, and 146a) and three drainage wolls (Nos. 91, 93, and 94) were explored, and the results are shown graphically in,Figure 11. In this figure nre Ehown the reported drilled deoth of each well, the renorted depth of easing,' and the velonities of the current meter plotted asnording to depth. In all cas-s, it was impossible to exolore thtotal drilled depth because in some wells obstructions prevented the passage of the current meter, and in others the lower portion was apparently filled with sediment. However, in wells 80, 93, and 94, pra.ti.ally the entire drilled depth was explored. tioll 9, in southeastern Orlando, at the southwest edge of Lake Davis, receives effluent from a septic tank. This w311 is reported to have been drilled to a depth of 811 feet and cased with 8-inch easing to a depth of 67 feet. At the time of exploration, an obstruntion was eneountere4 in the well at a depth of about 610 feet so that no volonity measurements were made below that depth, A'gradual decline .in 'veloity, was noted between depths of 60 and 160 feet, and below 1 60 feet the;velo'eity wa~ ~nsitently ze'ro Xt .ppears, therefore,

PAGE 28

27 that the septic tank effluent entering this well is being absorbed by the formations between altitudes of 10 feet above and 90 feet below sea level. Wells 19 and 146i are on the south side of South St., west of Farn Croek, at the South Street Imhoff tank of the city of Orlando. With two other wells, they roeeive effluent from this tank. Well 19 is reported to be 865 feat deep and cased to 408 feot with 8-inch casing, The downward flow through the easing of this well was apparently irregulcr, probably due to changes in the diameter of the casing, or to defeats in the casing resulting from norrosion. Below the bottom of the casing, the velocity was irregular but gradually decreased to zero between the bottom of the casing and a depth of 468 feet and remained so through the rest of the depth explored. Thus, it seems that this well is, introducing septic. tnk effluent into the limestone in the interval between 325 and 400 feet beloW soa level. If the irregularities in flow through the casing are due to defects caused by corrosion, there may also be some effluent leaving the well above the bottom of the casing. Thedepth of well 146c and the depth to which it is cased are not definitely known, but it is reported to have been drilled to about 700 feet. This well is located about 50 feet south of well 146b, and its mouth is at a lower elevation than the mouth of that well. These two wells are. conneted by underground cavities or channels in such a way that when well 146b.is receiving large quantities of effluent well 146c becomes filled to overflowing, and the effluent flows upward through it and drains throagh a ditch into Fern Oreek and thene into Lake i tr;aii, g,'dtilh int, Fon Ci

PAGE 29

28 Gra'nwood, whiih is drained by a group of five wells. At the tim of exploration, this upward flow was taking place in well 146n, and the flow measured was upward instead of downward. Howevr, from a depth of 130 feet down to 215 feet, where an obstru.tion was encountredd there was no flow. The lank of flow at this depth is believed to indicate that the formations balow 130 feet are not receiving effluent in appreciable quantities. Uell 110 is in west-central Orlando, near the intersection of Amelia Avenue and .Westmoreland Drive. It is one of two wells in this locality used to drain a septic tank located beneath Amelia Avenue. This well is 500 feet deep and is cased to a depth of 131 feet with 12-inch casing, Below the bottom of the casing, the velocity of downward flow varied greatly, probably due to variations in the diameter of the well. However, it became zero at a depth of 165 feet and remained so through the rest of the explored depth,. indicating that the effluent introduced into the well is entering the formations in the interval between 25 and 60 feet below sea level. Well 80 is on the north edge of a small lake northwest of the 'Orlando Air Base Sewage Treatment Plant, and receives effluent from this plant. It is 431 feet deep, 10 inches in diameter, and cased to a depth of 183 feet. No progressive decrease in velocity was noted in this well, Instead, the rotor of the meter continued to revolve throughout the explored depth and varied through a wide range near the bottom. Accordingly, it. is probable that the entire uncesed portion of this well is introducing sewage plaht effluent into a 825-foot thickness of Oaa ad mictdle iEoene limestone between 75 and 300 feet below sea levol.

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29 Veell 91 is at the Orlando Air Base, in the east side of A Avenue at the intersection of Sixth Street. It is 800 feet deep, and the 6-inch scsing extends to a depth somewhere between 150 and 180 feet. This well is used for general drainage of streets and storm run-off. The velfoities observed within the casing of the well were much more irregular than in other wells. This may have been due to the fast that the diameter of the nssing was only slightly larger than that of the meter tube, so that changes in the position.of the meter assembly may hive caused the flow to be more irregular or turbulent. An obstruction was encountered at a depth of 312 feet, and some flow was indic-ted at this delth. Hence, the lower limit of the downward movement of the water is below the depth of 312 feet, which is 215 feet below se. level. Well 92, also at the Orlando Air Base, is at the northwest corner of A and First Avenues, about 250 feet south-southwest of well 91. Like well 91, this well receives general street drainage and storm run-off. It is reported to hnve been drilled to a depth of 350 feet 'nd is nased with 12-inch casing. The depth of the -qsing is not kno.n, but changes in velocity observed during the exploration suggest that it is about 175 feet, Below 175 feet, the velocities observed were irregular, and no zone of zero vel(city was found in the explored portion *of the well. As an obstruction was encountered at 319 feet, the lower limit of flow in this well is not. known. Well 94 is on the.northwest edge of a snill lake, north of the Qrlando Air Dse Laundry. VWste water from the laundry is emptied into the lake, which in turn overflows into the well. This well is 482 feet deep and is cased for 221 feet with 8-inch casing. Exploration

PAGE 31

30 revealed a progressive decrease in velocity from a depth of 200 feet to 390 feet, below which it remained at zero. Seemingly, therefore, this well is introducing laundry waste into the surrounding formations through an interval between the altitudes of.100 and 275 feet below sea level. Possibility of Pollution The possibility of pollution of the ground-water supply by the use of drainage wells has been mentioned by Sellards (1908, pp. 64-67, and 1910, p. 169) and Stringfield (1933, pp. 22-23). In regions underlain by porous or cavernous limestone, the use of sinkholes or drainage wells to dispose of sewage or surplus surface water constitutes a threat to supply wells drawing water from the limestone. Water which drains from roadside ditches or street gutters, and especially that discharged from septic tanks, is almost tertain to be polluted, and the freedom of nirculation alloed by cavernous limestones may permit such waters to enter supply wells without being subjected to filtration, This threat is especially great for wells located down the slope of the piezometric surface from the drainage wells. Recent outbreaks of typhoid tever and gastro-enteritis have resulted from pollution of private and municipal water supplies in Fillmore and Olmstead Counties, Minnosota. The pollution of these supplies was traced to sinkholes and stone quarries through which partly treated sewage and excreta were being introduned into the limestone aquifer which yielded water to ths supply wells (Kingston, r-

PAGE 32

31 1943), Several cases of pollution in Orange County, seemingly due to drainage wells, have been reported but are not supported by fartul data, The purpose of this investigation has been to obtain geologic and hydrologic information relating to the possibilities of pollution. Further chemical and ba^teriological investigations are desirable, and it is expected that the State Board of Health will make such studies. There has been a somewhat prevalent idea that all the drainage wells in Orange County were relatively shallow nnd that therefore deeper wells should be safe from pollution. Data herewith presented indicete that drainage wells as deep as 1,000 feet, and sanitary wells exceeding 850 feet, are in use. The depth of casing in these wells ranges from 67 to 400 feet, Exploration of several wells indicates that water from them is entering the surrounding formations at depths ranging from 70 to at least 400 feet, and that in the deeper wells it may go to greater depths. Geologin studies hnve indiicted that the formations penetrated by the drainage wells are porous and contain ramifying solution chnnnels. The internonnected pores and solution thannals allow free circulation of the water. Equal artesian pressures in the lower and upper portions of the aquifer will permit interchange of water batwemn the upper and lower parts of the formation. The genernl horizontal direction in which this water moves after entering the aquifer is determined by the shape of the piezometric surface. The piezometric surface in Orange County has a general northeastward slope. However, the ioncentration of drainage wells in and around r

PAGE 33

32 Orlando appears to .ontributeo o the rehirge in suffiident quantities to niuse a lonal flattening of this surface, and at times of heavy rainfall, aresat a small mound in it in southeastern Orlando. Within the flattened area of the piezometri. surface, there is probably free intermingling of the drainage water with the ground water, and from this area the water moves down the slope of the piezometriY surfae. Therefore, it seems thet the areas most susceptible to pollution nar those surrounding the wells, and adjanent areas down the slope of the piezometri" surface. Wells drilled in the regions up the piezometrie slope from the areis in whiih drainage and sonitary Jwells re concentrated should be relatively froe from pollution.

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TABLZ 1, WXLL RECORDS '. = ....... ., • ORANGE COUNTY .,r, -----y o---r" -o = .R. .te -4 1op t --on ole st, level wit. '59-'.D' -, s Z a rb Sof ou A t ."ovr mholo, leve wih driveny. *2 i 0065 M'4 0. Ax *2* , ....IF 5 ~Citandoy O o sSS't of Otiy ot OrlaCSo 7. 3. ahba B. 19 400 130 12 TOp or Iron manhole rtl, level wit 95.95 1s Dralage '100 ft-t e n e of 8oaAWo Are. street. 2 Itla us, Sa.nth nero Goos City of rlando ..mattn Mr. 1926 450 Top of iron r anhole risT, level t 1097.5 1 Drainage Ir** k na.', 3f* .Atfee. w a -St-eet. 6 orlnd0 e of Was e Ciof of Orlando -rwov 1926 27 -0 18 Top o I ae rie, e I wIl 106.50 11 Dra Es0202 AT*. 100 frt north o Pinton Ai.d tr ee. 4 t la1ud,;outh g of thl St. 0City of Orlando -e 19 43 5 L9 r To d of le riaightod l id 105.33 35 I inagp 2c ..o no4 Olmd.9 8,over Sm 0nhslo a, Utlevl rith drivewy. on'uooqr Ao.) S Orlando, southst ner of City of Orlando F. .. Rhahn 7mb. 1926 400 12 fOP of iron mnhole rim, level wt 10 4.3 14 Drinage 61 Orlanade, wat ide atf rf Llaer City of Orlando ..aehn iye. 1926 317 1 Top of iron mahole ria, level 1w6.50 1 Draina a-: s i100t Str, noth or g St. 7 Orlao .north et Gorne A o, ort City of Orlando r. 1. Rsehn .i 19I8 30 115 12 Top ot iron manhiol rLn, level wi 107.43 2 Dinaage oAt. ofan sar St. land urfac. 1 ;Olad, nortl sitde of ashingt City of Orlando H Rh 1929 345 19 12 Top of ion manho t ri lrvel wi 03.96 1 Drainage ,St., bot 40 feast a oaf arvio atiton driveway. Xenlwnak Ave. 9 Orlndo, a athet. aideof Lake City f Orlando Be H ehn Zum 190 811 67 8 fop or iron nhole rim, lvel wit 73.34 10 Smnitar NO N. 1-139. Mavisi-belsn ha Uokvlla and land anrfaea. oeStank 51w. ., 10, Orlando, aomht eamt e of BLake ity of Orlando -aa e. 1989 35 63 10 Top of iron anhole rim, level with 74 Draing Cbsrokmeq at Cheroke Drive end land mrfaom (Loin S oaa e St .streetontr l) waft ior Dawn. a, sotreet. 13 Orlando, northert odeo of Lake City of Orlando Henry Rhn D. 1929 3 77 12 Top of eonrte manhol rim, level 7.1 Drainage Davis, between Danials and with tOp or streat aurb. (Lake 1 Orlando, northeast canor, Det o City of Orlando Hen. .ehn Auay 1929 375 213 12 Top of iron nhol ria, level wih 10103 1 Drainage AthI ando. Lal St. s etop osf. c 14 rland'o. northeat e azr of n City of Orlando De. R. .w Se. 1926 40 12 Top o iron nanhol rim. lel wh 96 7 Draina Prinoeton AvUToeM. .rtb street. 16 Orlandor, put at fat Drive, o City of Orlando P. R. arhn Aug. 1927 465 313 1 Top of iroon mahole ria, level with 1 Drainage south of PIne 6 .m3 10 top of street curb. it? Or en -near center of north edge City of Orlando T. It. Natthewa Sept. 1926 430 139 13 Surfaea ..-None Draina 370 10 W 'Orlando; northweat edge or Lake of Oily or Orlando F. 7. Reael Jay 1936 353 100 12 Top of Iran manhole rim, level with 1 Drainage ( .. th5 Woo. 253 10 land surface. (Lat ke gontrol)

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S:Tabllo 1 oat0d.1 SMeasuring Point Orleadd, 'ao, se of South 91. City of Orluno F. 7. ameha --400 8 a -Non e^ iao 4I4 F -a 9 -Ave. at l-e o1i of SpoenS 5 wih s r4eet*. P no4 -§ -1 Orlsdo, 'south aid of South St. City of Orlando P. 7. Raohn -861 408 8 SrTopo. 74 None Drainage at Faen'Creek. .20 Orlando, in south sid of Oregon City of Orlando .J. 3mhn Apr. 1926 31.3 13 12 Top of iron manholea rim, lvel 104.93 7 Drainage : Ave. at -intereotion of Spokane t With stet. 21 Orlando, northnet of Sunet aike, City of Orlando r. T. RaJhn O 0t. 1926 213 80 12 Top of iron mahole rim, approxi-a Drainaig outh of South St. extended masely 1.5 feet above land surface (Lake control) 2 Orlando, east side of lake LanCity of Orlando F. 7. 2aehn Oot. 1926 183 130 12 Top of iron manhole rim, level 94.22 7 Drainae oster, .ain aim on eat side of with land surface. (LaN : atmet, 1051 Lanaster Dr.. control) S Orlando, west sde of Atlanta Ae., City of Orlando r. T. Rashn Oct. 1926 28 146 12 Top of iron manhole ria, level -4 Drainag rth of Miller Ave. extended. with land surfae. 28 Orlando, about 25 fest east of City of Orlando 7. R. Matthews Oct. 1926 408 124 12 Top of iron manhole rim, 0.5 foot -2 Dinage nUaoae St. at intersection of below land surface. 0uava Ave. 28 Orlando, in north aide of JefferCity of Orlando -Dec. 1926 405 10 12 Top of iron mahole rim, level -1 Drainage aon St. just west of Terry St., 180 10 with street. 10 eet south of Io. 140. 26 Orl~ado, in ditch on east aide of City of Orlando J. R. Matthews Mar. 1926 203 100 12 Surface. -1 Draiage Harrison St.; about 500 foot south of Par Ave. 27 Orlando, in east aide of Shine St. City of Orlando .J. Baehn Apr. 1926 389 124 12 Top of iron manhole ri, level -4 Drainage just south of Marks St. with street. 88 Orlando, in south aide of KinnoCity of Orlando .J. Raehn July 1936 469 125 12 Top of iron manhole rim, level -4 Drinag sota ATv. Just east of Mills St. with street. 29 Orlando, parthwet portion of City of Orlando J. R. Matthews Sept. 1926 169 120 12 Top of Iron manhole rim, levl 97.89 3 Drainage interection of Helen St. and with street. Winter Park Ave. 30 Orlando, east aide of Jestmorelad City of Orlando 7. J. Raehn Mar. 1926 408 109 -Top of iron anhole ria, level 3 Drainage Dr. opposite Jefferson St. with top of street ourb. 31 Orlando, south edge of Sturtevant City of Orlaz..o F. J. Raehn Feb. 1927 451 Top of iron manhole ria, level 99.15 8 Drainage St. joat west of Lucerne Terraoe. with surface. 32 Orlando, south side Lake Davis at City of Orlando F. 7. Raehn -415 102 12 Surface. -None Sanitary Brookvilla St. 367 10 Septic tant drainage) 33 Orlando, in south side of Steele City of Orlando -eb. 1927 439 97 12 Surface. -1 Drainage Ave., about 45 feet east of 390 10 Amherst St. 34 Orlando, center of Westmoreland City of Orlando 7. R. Matthews Nov. 1926 454 172 1 Top of iron maAnole rim, level 98.50 5 Drainage Dr. at northernat intersection 292 10 with street. of Tale Ave. 35 Oe a0il west of Pinecastle, north Orange County J. .Matthews Ot. 1927 260 123 8 Top of Iron manhole rim, level 97.35 16 Drainage 0S No. W-53 side of road. Southwest corner, with surface or road. Ssee. 23, T. 23 S., R. 89 X. C) 1 1 1 1

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Yable 1 Cont'd._________________________3, Measuring Point___ SS oD q.. 4 lk .4 M seuth side of roa?. s1 e. 8usaee of road. a o, T. 85 a., R. n9 liits, wes: sIde a ofeae. suOface of rosa. a e.... R. S So 36 miles southwest of Pianoat, Orange County J. R. Matthews NDe. 1927 47 99 12 Top of iron anhole rim, lerel with 99.00 19 Drainage 10m No. W-54 south aside of road. Mn*I me. aurfase of road. 6s, T. 25 S. R. 29 S 23 a elas southwest of Pnloatle Orange County J. R. Matthews oDT. 1927 375 71 8 and 6 Top of iron manhole rim, level with 99.19 13 Drainage OS No. W-5 outh side of road. i3, o .surface of road. e5,. 27, T. 2 8., R. 9 Z. 38 1/8 ile rest of Orln lo Cityo Orange County 7. R. Matthews Nov. 1987 141 74 6 Top of iron manhole tim, lerel with 98.71 40 Drainasge S No. W-58 lmits, ofot sido of o d. surface of road. seaLrha o. 33, T. 5, T., S.R 29 2 39 4 atea southwast of Orlando, Orange County 7. R. Matthews Dec. 1927 417 211 12 Top of iron manhole rim, approxi97.02 10 Drainage TOS No. 1-57 io drainage ditoh 1,1 0 f ret mately 4. feet above surface. outheast of road. sjmP35se e. s T. 3 S.., R. 29 5. 40 miles southwrt of o a, Orlando. range County R. .Matthews Dec. 1927 415 19 8 Top of Iron manhole rim, level with 98.28 5 Drainage mS No. W-98 west side of road. 8, i ose. surface of road 5, T. e 3., SS Z 4 miles asoth of PinOastle, north Orange County 7. R. Matthews Jan. 1928 455 363 6 Top of iron manhole ria, approui94.0 6 Drainage 1S No. W-83 side of r0d at south edga of La 139 mately 1 foot above land surface. (Lau earhbad. 1Sft see. 25, T. 23 control) S., -3. 29 4 / "iles east of Conway, nwt idto Orange County R. atthews Aug. 1928 42 13 12 Top of ron manhole rim, approzi100.83 10 Drainage FOS No. 1-82 of road, at edge of LaSI arber. mately 4.5 feet above land surfae.o (Lake eiae. gf .sc..9, T. 30 ., control) 3. 30 X. 43 1/4 amle north of Conmay, 5 foot Orange County R. L. Smith Aung 1928 42 169 a Top of iron manhole rim, levl wit 104.23 20 Drainage 170 No. W-79 west of HigLway 29, just north of top of road curb. redericoa Drive intersection. sef. .9, T. 23 S., 3. 30 1. 49 3 b le nouthwest of Orlo. Orange County R.. atthews Jlne 1928 463 ~ 10 12 Top of iron anhole rim, about 96.95 14 Drainage FOS No. 1-81 ditch 6of feet southeast of rod. 4 feet abovr land surface. SjflB .oee. 8, T. 3 S., a. 89 X. 45 1/2 mile northeast of Conway, in Orange County R. L. Smith July 1928 452 161 8 Surface. None Drainage OS No. I-80 SiMs' Orange Grore. uwoIi Wv*o (Laie we. 9, T. 23S.. R. 30X. control) 46 1-3/4 le esat of Coway, north Orange County R. .atthaw Aug. 1928 422 537 Top of Iron manhole ri, approxi998.5 1 Drainage TFO NO. W-88 side of road. il see .10, mately be level with land surface T. 23 S., R. 30. X 47 About 1 aile northest of Or Orange County R. L. Smith Au. 1928 350 313 8 Top of cacing, 10 feet above aur82.12 31 Observatlo 108 No. 1-89. WatrVista, in edge of sink on west 38 6 face. level recorder la aide of road, 1,320 feat north of atalled S oor. of S aemo. 286, T. s22 ., R. 28 3. 48 miles west of Orlando, weat Orange County R. L. Smith Sept. 1928 133 75 a Top of iron manhole rim, approxi98.23 5 Drainage MOS No. 1-90 side of road. Nflij seao. 16, netely 2 feet below level of road T. a3 3., R. 29 Z. surface.

PAGE 37

Measuring Point -' "4 .-345 Q-. 4 j *4 i 1 .1Sii 0„ :4 a 4 1 £| 9 2 sillas southeat of Orlando, Orange County R. L. Smith Nov. 1928 421 162 8 Top of wall of catch basin, level 111.79 4 Drainage 108 No. W-91 S oJtheast .d W Lake 'abasn. with land rtace. (Lake b aw o. ftS l.an S., ..30z. control) S:SO es' wlew t o'rlado aotheast Oranag County 7. R. Matthw Jan. 1929 383 100 16 Top of north wll of catch basin 93.30 3 Drainage 70S No. W-9 : dgo o f I L a k e LC C .snR1 ( L ak e r g e orO; .a2k ms., R. 8 .control) 51 l-illw wet of tai.lla, 59O tfet Orange County R. L. Slith Dec. 1928 199 100 8 Top of concrete manhole, approzi98.57 13 Drainage 109 No. 1-93 Seat of lnatrotion north ide of nately 2 feet below road surface. 7 Jd. flseoa'16, T. a 3., 53 1/8a;ile south-wst of O o rang County --113 12 RS of mnhole, level wit side98 14 DraSinge west *ld of tBuby Anv. between ulh. .Bnderon St. and Calton Drive. 11' '. Sk3i --0e .6,.T 23'S., .' 1sirwrt of lirl, north Ore County 190 416 -12 Top of oncrete manhole, appro96.46 17 Dranage sdleo rroia, 70 feet east of nately 2 toet below road surface Intersection. "1 mee. 16, -S. 1.'-2 s' 2.r9 8. 54 Winter Park, southeast corner of Town of Winter Park W. A. Neal Oct. 1988 400 81 10 Top of iron hole ri leel 88.74 13 Drainage 05 No. O -86 -Oefter St. 'nd Wellbourne I *. with top of street ourb. sB Matland, north shore of Lake Orane County 7. R. Matthews Nov. 1930 388 110 18 Top of ron anhole ri, level 77.2 10 D ae 108 No. -1256 bwll. s I sea. 25, T. 21 S, with surface. (Lake y b a i s 5 .2 c o n tr o l ) 56 Apopka, at" ei t side of Highland Town of Apopka --Apr. 1926 43 12 12 Tp f ron ahole rim, level 118.40 21 Draitage 086 No. E-89 Av.;:,200 feet north of Fourth at. with top of street curb. 7 isheran's Paradise, east faore .E. Jackson R. L. Smith --465 -Top of 4-inh well casing, sa 70.8 3 Dometi or C,' Apopte. .See. 30, altitude as surface. of Lake Apopta.' eoo. SO, T. 21 s., R. 28 X. SB Winter arden, south end of t Harold Tildn -130 -4 3/4-inch pipe, 3 feet above 74.4 7 Irrigaton iApopka in orang grore just west ct'odityt 'doos. s .'Oakland, at wagon shed in garden R. L. 3mith R. L. Smith 300 op o of oncr 9l 7.45 oot 10.59 4 Irrgaion eaS et ..L.. Sith residenc. above top of oasing. & Orainag IEsI ,a o. 20, '. 233., a. 27 3. 60 1/46 ile south of State Road 22, H. C. Tilden -1925 500 -16 Topofasing, approlately level 121.90 1 Drainage 2 iles ast of Winter arden. i J *seo. 24, T. 8 S., R. 27 3. L o. c, south side of S'tate R oa 500() Top of conorete structure at edge 12.52 17 Irrigation of ell, leroel with surface. end 4U. seea. 18, T. 82 S. Drainage S SaeT.tM easit s-hoe. T. Ho.llingsworh -191 484 19 10 12 Top o oonrete annhole, level 99.36 3 Drnage 108 No. W-218 a Sva U, -takvit above. *8 V.w HollingwortI 1931 48 lth surface. (Lal see. 11, T. 24 S., R. 28 E. control) S .rie eauthest of Taft. Irlo Brneon ---300(7) -10 Top of casing. 81.5 4 Drainage obS c. 38, T. 84 S., R. 29 3. 64 3 Raues saih eIotn of Tarft. Irlo Bronson --40) -10 Top of 4 across wooden atuct 8819 5 Draiage ngse. 23,. SA .3. 29 slightly above land surface

PAGE 38

Measuring Point 4 52 S0 -5a, t 0 d ou3h' of4, C00% AD ,., 0nm2 ei g* I I O' IS S. I , R. s .. SS, ta & ., R. a 0a -seo ~t C.. .al hk o 1. SAe A -H**gh4 --;q4----0-oe --' ..T ,-0 -,S , .'" X ....., -' ', 65 eal ol o24Boa. erOnt r bl .S.aow Libborpy d 196 3 11 3s05 10 Top of o sn ro t .e amod well Supply 8 o. 9 Rom." 0 T asotle, AJir Base. • U. S. Ay ULbby sa noeman May 1943 -0 l9 '-------------Noe Sufly Teo. ,22, T. s .. 30 6 '. 9 soUttA o B. .ster .o lbe 3 ase .-Aoo --? ) 4 Top of -anch spip, 1 n foot abo 15-1 I n o. u 2, T. 83 S., R. t 0 0sho0o. urface. 67 PWflalemMB. De W .JaVR. S. el Ar Libby and reeman ay 1943 445 16 8 Surface. --..93.None upply lo RIO. W-727.. .So 3. 2., 8.. O.3 ..30 6 R. ..Nc.. .ie•ppy 16 2La siatihtot oA O' lB l. a. ePe Ar Ly and 3. A i an 4 ------y 194one3s eth a. sac0 .T1, T. 23 S., .29 I 69 -ineCa es.8.OTer of u. S. Arm? Libby and Freema Apr. 1943 406 1 60 a0 Top of casing, 1.5 foot above 1-74. 74 *rs.. 39, T. 18 ... 3. 0.41. g o srf*. 7T 1 P1I uoUttt ofi ODrlaa. 3 .Pf So DaM Lbby and re n y 193 0 10 4 ---------------None Supply Prd3 No. -th 47. e -2,O. 310, .. 0 ..9 93 1imtle moatuth of Piorsanost. amer ar enry Rahn () --350(7 ------------------one ti O at time. b* me. 3,,; .3 S, .29 75 Tan.; 3*3kt.e.. 1, T. 36 .. o ula R. Salee Libby asd Frean 1943 149 1302 3 N----.--Ir----------Ione Irr igtion R. Oad 2. 84 Tolat do t' sea. I, f T. 34 S., OrfndOeloo ----10 Top of -r b -----None Drainage Well abandoned and 8. b9 o. fntille d up, 194o3.1 oo bov ua TO I mti m oWbuet of Orlando. Perfection Dairy 0. N. ri .180 .1. 4 -------I--Nona Supply Producea metbin. IOOMP a* m. 10,. 835, R. 29 (Diry) 7 1mk le othest of Oandeo. t Perfecton Dairy John Corn he 16 80 6 10 -Top of ooaooee Supply Po .oq methae. S. r. 310, .83 8., .29 (airy) 79 Orlaldo, eaer oBae, Cher j nd A. aouan As2 ou he ----------------------------I on Irriatio Produce. air94 under RIo Grand.its,. 2,.2, et O1 Oriandoi. Ao l aiSe of oir a .City of Orndo ln ... -I1 Top of brinck curb aroud well, 10.3.6 6 Drain -6. o oi.been 3antuby AVe. and about 1 foot above purfaau. 310 Grandm at. as. rI2, T.. 30X. S0 Orlando, Air Bame, northeat mide U. S. Arm Stevana Southern Mar. 1943 451 185 1.0 Top of concrete bor around well, 111.0 None Sanitary MIS NO. W-014. or like, northwest of sewge level with murface. (Sewage Alant. 3 k wneec. 30, 7. 253.9 plant a. 50 2. drainage i ftLdo Air Dame. 1.50 feet north 0. 8. AIM? Stevenm Southern reb. 1943 at$ 170 .Top of *-Incoh te In airline, 1.36 113.58 6 supply ym go. W-736. or lalndry. 81V* me., 19, 360 6 feet above floor of pumphouse (Laudry) U Orlado. Air Dame, 75 feet south V. So AMr Stevenm southern mar. 1943 6 3W3 6 Top of j-inch te In airline, 1.31 114.07 7 Supply 108 No. 1-758. ao laundyw. j see. 19, 140 8 feet above floor of punhoume. (Laundry) '. 22 8., R. 30 Z.

PAGE 39

SMeasurin Point. 4 tD al S a e wa !4 --4 40 N BS Z W 1 M S Orlano A-ir as, # ortlest .a. A AW StevenA Southerm Jul 194 441 ISO 1 Top of iron rmbhole r leve. l with 103.04 7 DraSiage S No. W-608. ot landig field, UP5 fte mouth surface. o. r w ofor. se.no., T. 8es ., r. asy s. .4 6 e Ir if n5, 925 'net northU. S. Ao anhBasTn ruly 1989 s31 142 1 Top of iron anhole rim. level with 103.45 Drainag i' cn 1 ooatrBoltair. t o nk srface. S se. no, T. 88 S., R. 30 Z. lia Air, ii jO .t nrth.S.Army *Ine-Atlantl Co. Ar. 1941 449 0 -Top of iron anhole rim, level with 105.53 1 Drainage 1S No. W-54. iest of ontiz. tower, 1300 tnt surface. southoast at: Ntoor. of sz surface. sea. 29, T. n S.', 8. 30 3. S87 r .landoAr ae approm aty U. S. Army Libbyfroman Oct. 1941 18 1 Top of Iron manhole rim, level with 103.02 1 Dranage 08 No. W-141. 1Robet northwest of ntSoh / surface. ns. 29, T. 22 S., R. 30 B. '' Bs.00 sr i east ide of U. S. Army neve Atlantic So .Jan. 1942 10 19 12 Top of ron rnhole ril, Ire with 10140 7 Drainage 08 -15. eAe .i bt.wee n 4 end .30, ever 2 Sua e 2 ., R. 50. 91 Orla o Lr.ea L ea s ei o1f VTU. .A--Top of iron sanhole rim, level with 100.70 on Drainage FAire.stA aCOO toet no4th St. Bobinon Ave. South 1/3 1 surtace. sa. s0,e. 0 5., T 8. R. G9 'O .trlandqo Air ,Bas, 300 fst e o at ..St South1940 10 1 op of oncrte hol directly 109.36 8 ofsee. t., 900. S .oone washoot n or 9 C Or Hr ..S. Wel Pp .a 30, r4e T60. 8, T. 30 .., 30 '. or a atIndo. i' Bfa', mnouth odfo o. weli. 4* 8'*l t l thlafe v3 nS h BO .6o94 80 2 Top of irwood platform, Iatly wi 100.8 Drina No. -48. T; eo. 30, T. 82 S., R. 30 , level wh s 92 1Orlan9t Air. and no t o V .Ay ---6 Top of iron manhole rim, level with 101.4 8 Drainage Le t Broe ,, nte Top of Iron mhole r, level with a Drainage erL A Ave. and 1st St. l*M* concrete floor of sutcmobile wash sea. 30, T. 32 3., 3. 30 3. reek. rack. 93 Orlando Air Ba igal 1 U. .m Grey Well & rump 00o. 1942 500 280 12 .---------Nla Dr ainage 15 No. 1,-1L. sa. a8, T. 22 S., k. 30 X. *94 Orando i Base northest edge U.a. MwAn Stevens Southern ar. 1943 402 U1 8 Top of wood platform, directly o 109.70 9 Drainage FS No. w-438. 'fl 4la. 19, T.' 22 S., laf. 30 11, level with land surnfaoe. 9B Orlando, ouwst shde o arner f ity of Orlando e. a. alSth 19th Ave. and Talloke St. -6 Top of ion naahola rim, lavl wit 104.67 3 Drailnag :Me=* se. 2, T. 83 B., 3. 29 3. surfacea. 96 Orlando, northwest edge of Park City of Orlando -Lakein at Broadwy. --Top of Iroan rahol ria, Irael Wit 3 Dlainage surface. f Orlando. wast side of Irm St., City of Orlando 7. J. reh -154 i about 200 fet south of Harks St. 121 1 Top of iron anhole rin, level wih 89.67 6 Dranage street curb. 00

PAGE 40

* 1 OeaI Co a."n___ Measuring Point test .st og .S' yma'I. zband s g th ot-Alemader PlSce eS? S4 -I 0" " 10 O Ao, seuth o of aod Cy of Orlano ] .193 O ap os aoAe r, .evel 1 NO. 0,5 v e.. es o'b w st c. 98 Orlando, In north edge of Colonial City of Orlando F. .raahn Dec. 1923 434 -12 Top of iron mnhaole rim, level with 96.48 6 Ianlaso Dr., 500 ft t east of Orange ATe. street. 99 Orlado, northwest corner of City of Orlando 7. 0. Dibble Aug. 1937 58 122 12 Surfao. a hol Drainage iD N1o. W-S06. Jefforson and Oarland StD., 40 f eet West of ftrn hydrant. 100 Orlando, northeast cornr of play. City of Orlando Jr. .ktth o. Apr. 1934 461 115 12 Top of iron manhole rim, level with 106.5 3 Draiage I io. f-271. gioUzd, south of-Alieader Pace land surface. at evere St. 101 Olando, south side of Parwood City of Orlando 7. C. Dibble Nor. 1936 750 215 12 Top of Harwood Aoe. curb, level i -Drainage No. 1W-13. A.. asut of Hie ead St. with s urfaee. 102 Orlando, east side of Chapan St., City f Orlando J. 1. Matthews Nor. 1934 566 167 12 Surface. -1 Drainageo 10 No. w-31S. Jut South of South St. 10B Orlando, souath Id* of Holdan St., City of Orlando HUury Ramhn Aug. 1938 757 138 12 Top of irn manhbole rim, level with -3 Drainage S0 No. W-272. opposite Trry St. street curb. 104 Orlando, Oriffte Purf, in lm City of Orlando Oray Well & IPup Co Ar. 1940 507 132 12 Top of iron manhole rim, level with -e Drainage 70 No. W-08. oa south aide of Collahas Drive, la abou0 t weet of nbar Court. 105 O6lndo, 5 feet eat of well 104. City of Orlando Cray 11Well & Pump Co. Apr. 1940 43? -6 Top of iron manhole rim, lever l with 106.55 a Drainge Relief well for 104. 106 Orlando, In south edge of Patriok City of Orlando 7. C. Dibble Zan. 1938 4 3 142 12 Top of iron manhole rim, levTl with 109 6 Drainaae St., about 50 fet eat of Bra street. St. 109 Orlando, north edge of alay Ave.. City of Orlando Oray IoU & Pup Co. --524 212 12 ------------------------------------Nono Drainae FS No. V-S0. about 400 feet wt of Frn Creek 199 10 Ave. 108 1/8 mil south of Orlando ity Southern Fruit Dise Laym-Atlantic Co. Noe. 1940 49 -10 Top of 10-inch casing, approxi105.97 8 Drainage 70 No. W-59. lufts. see ao. 21, T. 23 S., tributors Corporation mately 1 foot above land surface. (t A. o .aste) 109 Orlando, in Amelia Ave., west of City of Orlando F. :. Rasha Aug. 192 59 --------------------------------one Santary Westoreland Drive.* ( i 110 Orlado, north aide of Amelia Ave. City of Orlando J. C. Dibble July 193F 501 131 12 Top of manhole rim, level ith 102.43 1 Sanitary about 200 feet west of Wastmoresurface. spt a k la4d Drive. drainae) 111 Orlado, northeast corner or City of Orlando F. J. Raehn Feb. 1925 39 90 12 -------------------one Drainage intereetion of Annie St. and Bradsham Tarase. 11 Orlando, south side of 18th St., City of Orlando -July 1925 513 10 20 Top of Iron manhole rif, level with 103.56 5 Draisa just east of Avondale. surface. 113 Orlando, west side of Cathoart City of Orlando P. J. Reehn May 1924 54 -6 Top of Iron manhole rim, level with 96.06 Drainage M8, about 100 eet north of iurface. Ultngston AT*e. 114 Orlando, outh side of east City of Orlando -Jr 1925 349 0 18 Surface. -1 Drainage Central Ave. at ern Creek. 115 Orlando, northwest orner or City of Orlando --170 6--------------------None Drainage C Church and Prrmore St.

PAGE 41

SMeasuring Point ,44 8 .0I S004 0 -4. & 9 0 Oa § 1 5.0 16 Orlado, east side tof Bampon St., City of Orlando -an. 1924 260 -op of Sron aanhole rla, level witt 108.81 4 ainage .: bot 4 40 et f t0 of .Colnal -~e. '.eive. .: 11. OrlaMdo, northside of Concord City of Orlado 7 .Hasha 7eb. 1924 460 142 8 Top of Iron aiahole ria, level with 102.87 5 DSlat e Ave., about 75 tfeta.wet of railtop of street ourb. 00es e e 0 60g. "ead oro" St. 1O0 Orlando, west side of Garland city of Orlando F. J. Raha No. 19 196 10 1 -----------------Noe Drarlage AT*.,, between LAvingston Ave. and .... .Awndfr Pla*. ila OrladO, north of OeWwoo Ave., City of Orlando -1904 (4 140() --Top of asing, south side, level -1 Drainag a slope above ake Greenwood. with land saurfto. 'OLaldo aproximately 80 fet City of Orlando -1904 140(?) -o -Tp of smwing. level with land -1 Dana So athet 0ll 121a. murfce. Ae driando, approxuatly 40 frt City or Orlando F. T. Raeha Sept. 1984 605 -1 Top of t er cotta tile used as 82.31 4 Drainage west-southwrt at e l 12la. manhole. 118 Osrando, weat side of Shie St., City of Orlando P. 7. Rae b June 192 3 495 -10 Surface. -1 Saaiig south of Hloreest Are. 11. Ozrando, nouth side of oPedmont City of Orlando J. C. Dibble June 1938 48 173 1 ------------None Drainage IiS 9. W-5 3. At. waest of Reughe St. 218 Orlando, north oi old elty City of Orlando .J .Raehon uly 1923 1 -10 Surfoae. -1 Drainage o l Jaerstor, noxrtwoet o corner rl of oit e St. and Rio Orande St. 125 Orlando, eout sadd orf aokaon City of Orlando F. 7. Raeha Mar. 1983 450 -12 --None Drainage t., about 25 feet east of Oear St, ,. 126 OTrlndo, north aide of Lan CopeCity of Orlando F. 7. Rabaen Nov. 1986 3159 25 10 ate ----. -1 Drainage and' bat outwesl t end of Goldean 1b Orlando, east end of Lak eola. City of Orlando 7. .Rea Jan. 190 4 104 1 Sorfeai.th -I 1 Dra y and I8f Orlando, p100 pest outh or Ianhoe City of Orlando 7. J. Raehn AIp. 19W3 410 -10 Top of iron aanbolta ti, appros -82.241 ae Saingry Bit-. b ofwe Lgeon Place and wately level with urface. (pte S Oladoao rive of C of drainage) 1.8b Orlando, oabout 50 feePot et of City of Orlando --384 -1 -----e--3-----None Saintar 1 Sta. .t of h(anpto ttak draiaage) 130 OrlSado, north sde of Laki Loan City of Orlando 7. 7. Raha Sept. 192 38 1 ---.-------No Drainage 'oo e. d 130 Orlando, south li Avo.. under City of Orlando R. Matthews pt. 1986 450 1912 ---.. ------------None Sanitagy brid., aboru 'e 3al etwe Lak 0 10 epte tak loma an d aonj a atelle. 385 8 drainage) 3~aena and Lak Zatelle. 3 8 drahnag)

PAGE 42

Measuring Point r 0 f i-4.rI a1-_ j Asks onease, wests of earden mea Mar oG Wr4W M MMM-Cit O a 4 aim or iron wahole rim, level M e -a ain a ea Mark. m .a. d Ullsis Ae with soro ae. 13 Oao, Sa vaeant lot 75 teet City of Orlando v. J. ihah -39 -12 Top of iron anhole rim, level 7TS.9 Name Sorlap .soutohoroPfla St. ourb, and 43 with surfaoe. S tS 5 of aterf.S9t., owbro 1 anede, d.oth aside of. 3rk Lake Ci of Orlndo 7. 7. ahbn Sept. g1937 5 -10 -------n-Dranla Aw.. ess ,to. Glm t as. 16S About 1 rae mortet otf hrlt -----------------NOBs Dafie 0 la-o0. 9,... ,,5 .. 3. n9 L., north of aiLw e. 155 :Onmia, Fo raM n 81. *t Bobinso Cityo of Orlando 7. .Raen Sept. 1924 421 136 12 ------------1 156 ad4, awest e0dG of WestmnreCity of Orlando 7. J. Rebae Sept. 1923 -170 10 Top of io manole rim, level -1 rains. Oa r vo re, fM te north or with street. *":: t C :hur 8 1 Orldo, about 100 feet west of City of Orlando ----------None WVetaWrad ave, between Miller .I 'and, aStoMa Ayes. 158 Ormicd, about 50 feot north at City of Orlando F. J. Bashn Au. 1924 460 145 12 Top of iron manhole rim, level -Mainasg Colatla Ave. about aidwy beteem with land surfaeo. *st Ieoreland iDrie and, mantuoso IAne .. 139 OEeado, north side of South St., City of Orlano F. J. Raebn -84 -1 Top of tron manhole rim, level 4.17 5 rainage .t9S Jst. et.of Xl1a St. with street curb. 140 O d, f niorth li f n Cit of Ciy Orluado Gray Wll & Pump Co. Apr. 1940 287 175 6 Surface. -1 aiage Reler well for well .St.-, just west of TerM St., 10 No. 25. tet eorth ofwell 85. 14 Orlando, orth side otf ashiaston City of Orlando F. J. R8aha July 1986 195 97 12 Top of iron manhole ri, level 101.81 3 Drainae Ave..,at extemtoo or Cobua Ave. wIth street ourb. 142 Orlando, at interseetion of WashCity of Orlando F. J. Rahn -926 -------None Drainas s.ngtn anad Garlad 38e. 143 Orlado, st side of Le St.. City of Orlando .3. Raemh Aug. 1988 487 103 1 Suao. -1 D nag maout .7S fee north of a hington Ste. .. 144 Orlando, aorth ade of Ridgeood City of Orlando F. J. Raehn Aug. 1984 2 132 1 Top of manhole ri, level with 99.06 1 Saitary Av.. about 300 teot west of driveway. (ptia tenk sains St. drainag) 14a Orndo, in south ede of Lak City of Orlando --63 -1 ---------------------NOae lnage Greenood. 14b Orlndo, .teet ast of well 1454. City of Orlando -830 -------N---e--Drainage 1464 Icdo, at South St. septic tank. City of Orlando .J. e May 1925 -.. -------------Noe Sanitary *outh edge of South St. west of pt a erns :.-ek. lae) 146b Orlndo, at South St. sptic tank, City of Orlando P. J. Raelm Dee. 1930 63 --------------None Sanitary aouth or South St., west of tra eptio tank ewak. drainag)

PAGE 43

Measuring Point oa o S-. w at 7oeos 0. -h de o of 0I olo It. 15* Ctrl ando4 on wert 8£de .o4 C.ea .0" of" Orlando 0 Wp o0 twon manhole st4..a, level 1 9 o s 1 0 g I a.0 1 1 ,' St. SA o -.Ss 8 o 146 OQmdo, at ooth St. septic tcan k t y Orlando .J. h -64 -8 --------------one Sanitary sourf South St., wext of r Spti .outh ide of South St., City of Oran-------------------one IDrainag opposit aneoor of 7ron St. 46 Orliondo, in rookrill St., at city of Orlanao -----a --st y sonth ed of Lam Dbarl. ic aSnk drainage) 146 Orando, outmir f Delaney Park, City of Orlando --460 -It ---------------0ao San itary wsot of O alce o .St.(sep ti 180 Orla.d, iln Uhetorland Drsiv, City of Orlando -. --------------nlt asarly .a ee.th Bid of Conl= e St. (eptic t drainao) 18 Orlando, on, wet old of Clar City of Orlanueo -400 -8 Top of ron manhole r level 102.89 None sitary ake 8t., south of Je. .o St. ith o urfa .(eptlc 5s OzeL o, mo1t 1~ e of Zato ola, City f Orlndo --o -No Sanitary drainage) ee None T. sanir. uIS Orlando, northeast *de of lake City of Orlado -------itay Dot, ast of LakeB Dot Cirale. (sptica drainage) 15 3a ils southwest of Orlando. Agoes 9. Douarfty R. L. Smith 1932 140 -6 -------------Naom Supply Sx* se.-.lO, T. 82 S., R. 29 2. (ram) 1S 1 miles eouth-t of Orlusdo. Age O .Dougerty Henry Raohn 1936 36 -12 Top of easage, about 4 fet below ..1 rainage oS No. 1-307. se m So. 16, T. 23 S., R. 29 .lend aurnfoe. 156 miledo southreat of Orlando. Age a. Dougherty Henry Bash July 19 466 92 12 fop of east wall of concrete catch -1 Drainage 0 So. -314. seict MO. 15, T. 23 S., R. 29 2. basin, about level with surfaoe. 157 r1 miles *outh of Plecastle. Walter A. raban J. R. Matthew$ 1914 282 100 6 Top of outh rall or catch basin, -1 Drainage "n l Zaee. 25, T. 23 S., e. 29w .2 feet below surfa e. 158 1/3 iel northeast of Taft. -----6 Top of east wall of catch basiln. -1 Dranlage TaI 8 seeo. 1, T. 24 B., R. 29 2. 18 Io1 ~ le westa of Pineastle. Fai ie Orange County ---. .. -6 Top of eatch bnain wall. feet -1 Drainage see. 23, T. 23 S., R. 39 2. above s p urfae. 160 rlano Country lub between pa Orlando Country Club --, -6 Surface. -1 Draingo near highway. S geo. 22, T. 22 5., 3. 29 1. 161 Oriado Country Club, just wet of 0. 0. Magruder Stevens Southerm May 1938 375 173 12 Top of oonorete anbhole, about 92.37 4 Drainage aprlac I UJO. locli: go. 22, levrel with general land surface. T4 22 S., X. 29 X. 162 Saoutheast ide of Zak* Fairview. Nydegger Invest. Co. C. X. Spear 1907 260 so 1e Top of handrail around well, 5.14 -3 Drainage SW "o. 10, 7. 22 S., R. 29 X. feet above top or acsing. (Lake control) T^

PAGE 44

Table 1 lCoat'asitps 'e nmeeest o l11a. R. D. Eunior L a ]emn Au. 194.1. .4 -------....----. ._ I -o as 0 .8., §. as 11(. I6 EA.T ;lth.Avil nr, o .so s. ,=tm -i 34 8 s 55 .S ata, Dubadrea ontry Club, Dubdoed otr Club -195 5 -( 8 Iag g S,:. i.. a: .,•.. .....Measuri .Point o' t ..... l4s o..a0.:Xa 0 .co=r -s4 3 8 ----------0 a. nXB a o 4a Ave.W 'o: :ouilo o st. Bl, ,o ,r0 0 Ao. Nh s SOr i of Couty ---oa -8 ----o W ae Danaea O* saile. o .29, about 9 toM belo. .oneLbl Ud. M .170 'Orrml otkeeat oftirvrillk. 3. D.o unty I &hm A-. 141 350~11------.1--X Diu ' .'t. 9.~ "R. e ., 4 .S 2 9 (Z. 6ITS *il wst of Orlando outia7 tm Odrane Country ey Rub --25195 1() 6 ------------None Dr 1941 std.ot Laik Nean. 'Bi see. 3! "at01,6houiiin e T. 2 : ."R.X' 166 1aol lmtbf OrladoouAO*tr Club, Dabd OrBed Contry e-Club Rbn 1954 30098 10 1 Top o d overO ovIer ath bi 94. 4 moduofth d do. .*of iko Mdba. I COS Uno. 3, lbdld with lCoBUand sraclb .( T. 2 8., R. "9 X. ontrol) '18 B 'bil os atLet o O1ra3thd Oran1m County ----8 Top o oa -N 2 orainage SOrlnt t r ade of Srth o pa t o ran over the well, about Iroso wrI ith 1. ( La-frathe:loae. oSnty Ave. hd surface o.on 190 Oilmi6; east aid. of' lavhllo orang Coty --Nv-S G mome A*T 2 t, of 24th t. 1916 Orlando, noth edge of Orande, Lake Oramng County --Top of oIorer manhole r, drbot 100.98 6 Dralage t Parramr at. leel with surface. "ILd of Aouth= X p mt of La9 our the m bl, abotl generl thnd Xatlrine.. 3I eeI. u. rface. 138 ,1 male west of Orlando aoutbeaut OZ4nga County Nanxy Rebe53 7i5 N OD-S-------------f -Nne m Vming Abandoned In 1941. aiddofr ZAke Rann."5i asl. 'T(iA S.," .S1 5. .179 OrlnL, wet fide of DOreluth ree Orane County Lae-Atant Co. A-g. 1 39 41 16 Top of wood covrole rv, about be8 4 rinuage SAer .,soa.h ofP aa 3Av3. 3 level ith land surface. (-aw 2. 6..'L, T.' 8 S., o. Z.ol 198 /aile outh of Orlando, at e n Coey .R. Matthe -10 16 Top of onbrit mnhole, edrro with 1. Dra d-aostbretd swide f north pert of odr the well, about level with (Lake o. 1i, T. '8 8., R .9 urf. control) '19 !aiie i southea st o Orlando, at Orae County ----Top of.brk ao t manhole, about feet 4 D C oaddiof h t portn pof Nt of Lake bove the well, about level wi th (ll ootherine. so. 18, .., 8 t uf. ceantrol) 1 .7 to Orlmd0 etrt of wsre or outy Hy eh 4 T o ir. ol ri ut 4 A" ,ah fareell on t eabo lOod orra aIn J, .19., by .Y1 .1/3 m0le 0suth of Orlando, at se Orang OUty R. M. atthmews... 190 l6 13 Top of brick manhole, level with' 101.39 3 D3ing of oad, we"t of X40 road urfae. (Lake See. 0,' T. 3 3., R. atthw. i control) 'I9 e l, mouthest aide of Orange Cou t -Top or.brick manhole, about 3 feet 93.0 4 None bn ro bd 19 or 18niouthimst portion or North La mabove land surfaoe. cnto a 1-uinch wall, CA. e 1 .3 to 130 feet, ma 3rilled oake CoanWnw In amm. 1935 by 3. Nat01thea.s ThuIsis believed to be 199 or 100

PAGE 45

w easauring Point aJ S'0 .o 4 -I Ia m ..,., end of MIdle LaOI ComWW. Cet.Z ot s,. 20, 2. S., R. 30 & 8 idei southeast of Olando Lysinda os ---e6 -N r g o A a a bam.. G S ake mem 2e, s 3s S., 2. 3. Z.o 18i 1 2ies eat of Orlando, at north Oznge Coounty ----10 ----------------None Draiage Liof q t;dle ake artmon. (CL sOM o. L, T.22 S.. R. 30 cntl) T.*2 rt8 .3 .control)3 lwyr, '300 feet west of Nighwith surface. land Ave. U5 Apopa, On DrOS Lak. F orida Utilities carp. W. .Cornell 1935 357 120 8 -------------------None (Municipal 12 Apopka, on Dram Laike. Florida Utilities Corp. LaUps-Atlantic CO. Feb. 1941 563 200 12 -----------------None SuppLY (mof to i l) 187 1 atmies west of Clareona. a. H. Seegar W. X. Cornell 1935 161 63 3 ------------------None supply whVsOee. 4, T. 21 S., R. 28 3. (rfa) 1 .88 3 ao s west of 'Claroena. R. .Seegar Ae -495 00) 12 ----------------Nam Irrigation "ee. 9, T. 9 n S., R. 38 e. 18 le nothwest of areoona, ..ohnson --165 4 ----------------None Supply JohWnon Fish camp. swIat (domeeti*) ST.2 BI. &, X. 1 a. cot). 190 Orlado, east edge of Mla at City of Orlando ---Top of iron manhole, level with 104.0 2 Drainae X00a 7. ZIlinos Ave, -north at surface. sn3ots,'et e. betwen lbampton St. and Carden Plaza. 191 rlando, south and o hre City o Orlando --------------r a Court. 198 Orlandonter of Lee St., at City or Orlando -----------------------os DramAs south edge of Jefferson St. ,," ^ -.(, ,l 193 Orlendo u street noer murb, City of Orlando ----Top of iron manhole rim, level 93.028 Drainage southwest coirner of Chuah and with street. ,ss. 194 Orlando, in onuth edge of Maripos City of Orlando--. l 116 -6 -------------one DSing St., between 0s0ol end Lake Ste. 295 Orlando, north side of South St., City of Orlando ----. ------------------None Drainage an enter of Sume. 1ri St. xtend'd. 196 Orlando, about 150 reet south of City of Orlando ------------------None Drainage 19 rks St., about 130 feet east C of rl ----------------* a st ..: I I I I I I I II ^

PAGE 46

Measuring Point r' -I ,,s as or or ae k -197 Ow whl aips'. of Le. 3Oll, Dl". .On o Lbby &. B f. m MY 19S 03 2 3 3 1 6 -o p of -inr h as abou6 ao ll, 96.. we2 W a. ., R.8. .abr t srrtaae. (t o .:. S. e .6 Swted -ontiol) B. Orluod, J uatu woth orf anth. ity .o. SCounty -Ly & -m -------1--0--410 -t. 140 fee* limsa, at north iad of Lake Vouto oldit .-*X** me. .2, T. 23 .c oontrol) .... -.. 9 3 0* 99 B'T 1aLUp. -ais* f o. 34, Dr. Phillips Lbby & feeman e 1943 38 124 4 Top of 4-nohb casing, about 1.5 -1 SUply m we1 No. -368 T. a8 .i. 86, T. fest abor. lnd sR. fae. (domeato) 200 About 1 Ulls west of Falrillan. Frrd aren Lbby & Thsemn we 1941 310 120 3 -Nftne Suppl Orisginlly 16h fwet =m3Ip see. 16, T. 22 S., a. 29 X. 176 2 (domstie) deep and ater msn p oued. Repor. dto be &U right laoe'dpoapes0. 01' boUt 1l ineset of Orlado. Dr. Tro. Sokfln Libby & Fleman 1941 240 14 -------------------Ne Supply, otesill 140 fe Oftb am .2, T. 3 s.. .o B. (dometie) deep ad podu oae ato ld whem sell oCdoed to0 205 About mlles wnt of Orlando .BR's soLeoy Libby & Preeman 140 9 3 --------------.---None Supply Preoduoe e a mlI oe. 16, T. = 5., T. 29 .(domestic) 063 About 1 dl l outW e st of Orlando. Rol Par.aer Libby & rMoea 140 1 3 s-----------------Non Supply o drilled hiW'msl 15* Deo. 29, T. 22 S., R. 8 X. (domestic) produgood m oda poada praesure. StUI S, 1 ., bbbl nall qunti206 Abo t mile aotht of r ari Brookland Libby a Freeman 1941 195 110 3 ----------------HO Supply Orubo.' IP*i, T s. S., .022 ., (domatio) 205 Abou t 1 m1les southwet of L. S. feod Libby F& feeman 1942 35 3 -------------n Supply odIe w all. Orlindo. 8I, t see. 5, T. 228 ., (dormetio) R.: 15 206 About 2 Umiles suthwet of Orlando. Ro24, A. aoh Libby & Freean -u 1942 150 90 3 ----------------ONe Supply Produses oonlaeomhl IT. V Is., ., T3 .(domesti) ga. 120 About 'mi6 es est of Orlando. Dr. Marin Libby a Frnman Oct. 1941 19 110 3 -3----h ----c--n. au Supply Produe gasa. nW se. 17 T. 22 S., 8. 30 E. wh (dobmesto) 306 About'$ mls east of Orlando. .Madg Clrrington Libby & Measen 1940 250O 170 2 e s----------Ro upply Produaea pa at Winf me. 2r, T. 22 S., S. 30 R. (domatis) irregular Inteival. 209 Plrneetl.o*enter of meo. 24, Pnlaeastle Boat bo. Libby & raeen -106 94 3 -------------.o Supply Oase oooloall. T. 235., R. 293 .(doestic) 210 About 6 lla *est of Orlaudo. Tu%=r a Oe Co. Libby a &Ba ----Top nf 3-Inch asing. about level 56.82 1 Supply Sa3 ea. 18, T. B2 a.., .31 X. with general land surfoc. (abbatoir) 211 Orlado, Orlando Country Club. Orlando Country Club arm & Horn Mach. Co. -649 105 6 ----------------None Spply Orginally 69 feet N.mso. 22, T. 2S 8., R. 29 .336 4 (doestio) deep. beeam polluted after drilling of well S161 and wa deepen228 About 2 miles southwest of Orlando. L. 2. MeLeod Libby a reeman 1940 -185 12 -------------ones Draiag W nsee. 5, T. 22 S., R. 89 B. 213 8About "miles southwest of Orlando. L. B. MeLeod Stevens Southear 1940 450 125 12 --------------None Dralnage 5Xb seeo. 7. T. 22 S., R. 29 B. 1m

PAGE 47

SA 1o aemea4 of L. B. oToc s orh C. P940 4o!t-----Iand, ee. 9, .a S., 1.. „** -§ 3 .5 -A1 0..I CD R. 9 11 0 0L6 OrladO, 1111 Virlata .2.ve, no .Olar e1 Co. r. E. Jew5tt 1959 (p ...h o0 oa a De, =bo Pz460 o -0. 6 ~ 0o0 04 0 a. B 0 CS 400 te s6 o O0 Ave, we o4 0 4 -00 V. 0 o P 44 a C0-4 4. c -* p4 £ > Mr2 1 .1 0)0 0 -Ayes., strh of bw .nea (i S 310 Aboot two mils soMth-Et of i. B. MoLeoda Steve Southrn O. 1940 450 1l2 1 -----------------N Dra Orlando. *1 see. 7, T. 2 S., 2. a 0. 21 AWbot t Pamil, southa est of L .B. oLeod Libby & fteMan 1940 60 60 ------------------one Suppy 1 rive W Orlando6. SP .5, T. 22 S., (dometlo) 8. 2 X. 1.6 Orlando, J111u irginia Drive, iolda Water Co. a. H. de itt 1939 00(t) 154 1 --------------------Spp north of VTirgiMa Drive, about mrolal a 400 feet west of Oraug ATe. of dist water) 21 A Orndo, Ors Ae and Highlnd Ave Atlnti Compop H. Reha -550 75 6 --a Dra at O ,thweot corner of brwery. o.218 Orndo, Orage ad Hi.laxd Atln~So Caapoay, .Ra3hn 603 75 6 ---N.-----None -5 i A S ATe., soath of brlwero ne (for Sept. 194 railroad. cellar.) 19 Iiter Purk, just north of 8pe Florida tilitl3 Corp----------------------one Spply AvO., oaar Atlanti Coaet Linee 152 6 (uno 1e ipmel) neilroa. o a .ee. 6S. T. 22 8., R. 30 80 ilntor Park, asotheast 8of Zoe Florda Utllaitiye Corp --487 100 8 ------i--.-----e well oo pply lant, south of Cola Avsee. Sai (aoia pal) 'e. T. 20 E., 15. 30 e. allrobA west of well 219. sish seay .6, T. 22 S., R. 30 S. S1 Oila aest of Plmouth an north rederbo k Wiol, elyV. 3. Cornell Sept. 1943 3194 67 6 Surfae. 130 1 Supply sido of RHy. 441. N*i3 **ee. 36, mouth Cordens Tourmt (doeetio) 7. wll No. o-812. N. sO 8., .37 .Camp. 88 Orlando Air Be aoe boue 80 foet Or. .ArnM LaOn-Atl nt o Co. A.Aug. 1943 485 180 6 Top of cain-g, about 1.5 feet abov 114.40 8 Oberation 108 wll w o. 1804. north of laudry. SN3*U* ee. 19, land surfaoe. Recorder intalled. T. o2 S., b. 30 .. 15 feet west of Rob n 2 e. 224 Orlando Air Bawse, about 800 feeoot U. .Aoy Layne-AtlantiO Co. AU. 19P 1003 140 6 Top of easing, about 1.5 feet abovae 114.36 Obserration 705 well No. 1-806. north of lauIndry. SB*M* aee. 19, 496 4* land surface. Recorder nlastalled. T. 22 9., 8. 30 X., 15 foot east -of Well 223. 82M About 3 miles south of Taft. Irl BroMnson ----10 -----0----------None ainrsa epproziately 75 yards west of high ay. NNj8 see. 23, T. 34 3.292. 286 orlando, Stybold aMokin ma ny, Seybold faking Ooapany Cohoon Iachinery Co. July 1940 160 70 5N ---------------Non Supply Pfroduee ombustible north aide of mark St., wet of (cooling gea. Srailroad. system) 37 Orlaudo, in port office lwn, gste Orlando Post Office Farm & lHoe Mach. Co. NOV. 19423 83 153 6 -------------N on Dn rainage of Court St., about 150 fet eout of Robinson Av.

PAGE 48

Table 1 GOut 'd*' __ S Iteasuring Point 2 *g N Id a I 5 5 Robaslon Ai i Pineemstle. 8Wif sea. 8. Joh, KFeene Raehn 1925, 25 56 6 -None Drainage e .3 3 .2 0 S ., R .8 1. D w N 231 At underpass on highway at northState Road DepW. May Brothers Xan. 1937 9 --o-Nonee -. west edge o W ipter Park. 2 Orlando, southepot edge of Lake Orlando PoUtilities Co. Gry e & P90 50 1 -----------Ne Supply wll No. -. of. 0 .150 fa 233 Orlando, at plant or lorlda Public Florida Public Service Layne-Atlantic Co. Oet. 1940 1050 165 is --------------None Supply 703 well NO. W-527. erovice Corp., wesn t obson Ave. 4. 9 Piorth side oe ee .24ha. Hoequist Aeirport .92 25 566 ----------.-------------None Drainage see. 10 .23 S., R 29 3. 230 2 rtlwest side of Apopa. essatre. es Long y an b. 1930 3 71 8 ------...----.----None Drainage 05 S s"ee. 14, T. 20 S., R. 29 ., north Of well 236. 23 Northwest side o La at north-e. ttsse Boab Dpt Bote a. 1937 977 --------------None Drainage Sk se". 14, T.'25 S., R. 29 N., e sou dgh of well P5. 232 Southeast t o Poke Lake rldo tlt .ray .-90 40 12 --------------None Draipply IS ll No. 1ge-367. SSi *0e. 14, T. 23 S., R. 29 E. 238 Southwest corner of Middle Lake Matchott 6 None Drainage Conway. x 3f see. 295, T. 22 S., R. 29 923 Orlaado, soutwest ofrner lof City City o Orbli o Lay t C. 1940 1a0 10 ------------------None ppraina Eal, north s1ide oa th t St. Servios Corp., weat Robinson Ae 466 12 234 Oartla id e of sl e Buo n. Ho uiRt Airport ----6 -----------_-_--ONone Drainage TDo, eus. o La.k Do .29 rle. 234 About lot east of LOrlano. .S. Army Layne-A:i oh .Sep. 1943 4 11 ----------e -I so p Drainagel No. -809 S3 seo. 26, T. 23 S., R. 20 ., 823 Ort stado, was of Parr re Sa., at U. S. Dept. .auBb & e Ma -1h. o. 195 -o -.. ---i------No Sup Produces naemable Oty ac. (o14, .. 29 cooth of well 235. 3 SOrlandoat Codga-Cel Plat nort Coca Cola Go. boon Mact L .--69 ---------------------Noe oran. o d. si o Goe Ae. ea. 23 3., .29 A. ATe. 848 Orlndo, ut bout rn feer we o of Oae atctt ---O -------------None Drainage Conwrai ye. IN uc. 25, T. 23 3., ay. nolia Ave., abo0, .30 ee north orth olonid DSivtt. 541 Orlando, nortt-rat aide of Lake City of Orlando -----10 ----------.--on Drainage Dot, set of Lake Dot Circle. 243 About 6 iles suet of Orlando. V. S. tAny Layne-AtlantIa Co. Sept. 1943 455 191 8 Surfage. --1 Supply 70S well No. 1-609. 31S usa. 26, T. 22 S., R. 30 S. 243 Orlando, -t of Parrnbore St.* at U. .Dept Agr. Nax & HBor Mach. 00. --195 126 2 -------j---------*-None Supply Producea inflammable Otey Plac. (ocoling gau. 244 .Orlando, at Coc-Cola Plsat, north Coca Cola Co. Cooon Machinery Co. 1938 119 9 3-------------------one--N one Polluted. Not used. aIde of Gore Ave., eat of Atlant 245 Orlando, ibout .s00 feetes of Of City of Orlando ----10 ----------------None Drainago north of Colomal DriTe.

PAGE 49

Table I C4Mt~d.: -Measuring Point S,-. '+ .a 4' a44 0sno, seosamos elp or tke orta.o en-es comm ----------^ Bae manieto' 3 W O0 e e, a C9 .d o J2. 0n0een4. s .o. 04 -. '4 .. .o e p 0t. o s. ..a c 2g coo T a too 'T a ae 800 North CentraAve. A.3. Arrtn -150 -4 Top of £.sage. abo-t 3 inohes above 99.85 1 In gation § g •$ S2 56 Oaadlo, noustbet oQf of s ke Orlando Utilities --4 -4 p o nohas or o ----o6 b.B ualoini e1Ull". S, Ta. S, T. 29 .. iupp t SOSEOLA COUNTY 5 tt of l .A P. Tte 04 jop outheta OA 0. UO rriga tion abo 4 s miler noarCthBat of Oiedno.ches side Oeler Avt., at oert lside of oonoret ir rigation pipe. driovewy acroas road fi rPesdeo S., I. 31 e. S7 About 35 lles. outbwest or SanCity of Oantord Layne Atlantic 0. Apr. 1943 160 12 ------------------None Supply ell No. W-765. fotd. M* ra. 11, T. 20 S., R. 30 B.

PAGE 50

49 TABLE 2 Water levels, in feet, with reference to measuring point. (See Table 1 for altitudes of measuring points. Water levels in wells 1 to 66 through 1934 are from U. S, Geologinal Survey Water-Supply Paper 773-0 and have been adjusted for differenes in measuring points) SWell Water We Water Well 1ater No. Dte level levl el N. Dat level Orange County Orange County i Ornge. County S (Cont'd..) (Cont'd.) 1930 1 Aug. 4 -29.1 1934 1930 8 -29.44 1 Jun. 19 -28.3 3 Aug. 8 -31.37 21 -30.9 1943. 21 -32.0 S25 -29.9 I My 18 -38.38 25 -32.0 Sep. 2 -31.3 25 -37.73 Sen. 2 -33.2 8 -30.6 Jun, 10 -38.36 8 -32.4 15 -30.4 17 -38.46 15 -33.10 1931 25 -38,63 1931 May 13 -31.90 Aug. 19 -37.50 Aug. 8 -36.5 Jul. 14 -34.2 0.t. 28 -36.61 1943 18 -34.22 Jun. 25 -40.48 Aug. 8 -34..57 1930 Aug. 19 -39.30 14 -34.42 2 Aug. 5 -30.7 15 -34.42 8 -30.9 1930 1932 21 -31.5 4 Aug. 6 -38.4 Jan. 6 -35.9 j 25 -31,8 8 -37.48 Feb. 9 -36,5 Sep. 2 -32,8 21 -39.0 A Mar. 9 -36,7 8 -32.1 25 -38.7 Apr. 5 -37.16 15 -32.8 Sep. 2 -40.0 Jun. 16 -36.40 1931 8 -39.0 Jul. 4 -36.86 Jul. 14 -35.8 15 -39.9 S Aug. 2 -36.90 i Aug. 8 -36.2 1 .931 Sep, 7 -36.76 1933 Jul. 13 -43.6 10 -37.0 May 11 -40,2 Aug, 8 -43.95 S Kov. 18 -37.21 1943 14 -43,70 S 1933 May 17 -39.98 15 -43.70 M!y 11 -38.62 .18 -39.95 1932 '25 -38.8 25 -39.18 Jan. 6 -44.9 Nnv.'28 -34.6 Jun. 10 -39.83 Feb. 9 -46.2 1934. 17 -39.93 Mar. 9 -45.6 Jan. 4 -35.7 25 -40.03 Apr. 5 -45.41 Mar. 21 -36.2 Jun. 16 -45,04 S ay 17 -34.1 1930 Jul. 14 -45.51 Jun. 18 -27.8 3 Aug. 4 -31.0 Aug. 2 -45.78 C--

PAGE 51

50Table 2 Cont'd,Water levels, in feet, with reference to measuring pnintWell Water Well Wrter Wll WaterDnte Dntp, Date rN t level No. Dt levl NO te levelOrnnge County Oringe County Orin.e Cnunty(Cont'd.) (Onnt.'d.) .(Cont'd.)1932 1943 19304 Sep. 7 -45,86 6 Jun. 10 -48.03 8 Aug. 8 -34.9210 -45.6 17 -48.13 S.2 -37.4',Nv, 18 -47.1 25 -48.21 8 -37.,91933 Aug. 19 -46.9 15 -37.47May 11 -47.5 19311943 1930 Jul. 13 -41.2Jun. 21 -47.4 7 Aug, 5 .-38.6 20 -40,57 125 -47.35 8 -38.15 Aug. 8 -41.42Aug. 19 -46.17 21 -39.6 14 -41.17Sap. 2 -40.7 15 -41.121930 .8 -39.9 19335 Aug. 5 -35,71 15 -40.7 Miy 10 -45.778 -36.03 1931 193421 -37.8 Jul, 13 -44.75 Jun. 18 -35.25 -37.35 21 -44.30 26 -35.1Sop. 2 -38.7 Aug. 8 -45.00 19438 -39.1 14 -44.70 MIy 10 -44.691931 15 -4'4.70 25 -44.86Jul. 13 -42.4 1932 Jun. 17 -45.61Aug. 8 -42.75 Sep. 10 -47.55 25 -45.7414 -42.40 1933 Aug. 19 -41.315 -12.35 May 11 -49.2Sep. 10 -45.00 25 -19.4 19301933 Nv. 27 -45.0 9 Aug. 8 -1.20Mly 11 -46,6 1934. 15 0.41943 Mly 18 -43.9 Sep. 2 4.0M~y 25 -45.50 Jun. 16 -31.7 15 3.8Jun. 10 -46.36 18 -35.7 194319 -36.5 MAly 17 -14.011930 20 -37.2 22 -14.10 16 Aug. 5 -39,0 21 -37.7 25 -14.108 -37.55 23 -37.8 Jun. 10 -11.751931 26 --38.7 17 -14.9Jul. 13 -44.0 1943 25 -14.9421 -45.6 kay 18 -48.78Aug. 8 -44,3 25 -48.32 19301943 Jun. 10 -48.99 10 Aug. 4 -3.53icy 17 -47,78 8 -4.73!25 -47.31 Sep. 2 -7.50

PAGE 52

51 Table 2 Cont'd. Water levels, in feAt, with referenme to measuring point S;iell Water Wel Water Well Wter o. level No te level N level Orange County Orange County Orange County (Cont'd.) (Cont'd.) (Cont'd.) 1930 1930 1943 10 Sep. 8 -5.50 11 Aug, 5 -32.8 14 May 18 -38.51 15 -7.30 8 -32.57 25 -37.70 1931 21 -34.3 Jun. 1 -38.16 Iay 1 -9.1 Sen. 2 -35.1 10 -38.26 13 -8.9 1931 17 -39.46 15 -9.42 Aug. 8 -39.25 25 -38.58 Jul. 10 -11.6 14 -38.90 13 -11 ,8 15 -38.90 1927 29 -11,45 1932 15 F~b. --38. 31 -11,58 Feb. 9 -41.4 1943 Aug. 5 -11,8 Mar. 9 --1,2 May 18 -41.10 7 -11.85 A-r. 5 -11,68 25 -40.31 8 -11.9 Jun. 16 -40.l Jun. 10 -40,40 14 -11.2 Jul. 14 -41,31 15 -11,4 Au:. 2 -41.85 1927 18 -11.7 Sen. 7 -411.21 16 Aug. -22.5 1932 10 -41.5 Jan. 6 -13,23 Nov. 10 -41.72 1926 Feb. 9 -1 405 1933 18 LEy -27. Apr. 5 -13,95 ~ay 11 -4.1 Jun. -1L20 25 -43.2 1926 Jul. 14 -13.9 Nov. 28 -39.1 20 Apr. -42. Aug. 2 -13. 1943 1943 Sep. 7 -13. Jun. 25 -42.67 IMVy 17 -47.68 10 -14.1 Aug. 19 -41.55 25 -46.76 Nov. 18 -14.57 Jun. 10 -47.45 1933 1943 17 -47.50 May 11 -1549 12 May 17 -15.15 25 -47.69 25 -16.0 25 -14.23 Aug. 19 -46.56 Nov. 24 -11.8 Jun. 10 -14.94 28 -12.0 25 -15.15 1926 1923 Aug. 19 -13.82 21 OIt. -40. Jan. 4 -12.4 i 1943 Jun. 5 -11.3 1943 May 27 -42.19 19 -2.5 13 Jun. 15 -42.71 26 -4.7 17 -42.78 1926 1943 25 -4?.86 22 Ont. -8. May 17 -15.89 1943 25 -14,85 1926 May 14 -16.96 Jun. 10 -15.56 14 Den. -32.5 25 -15.25

PAGE 53

52 Table 2 Cont'd, Water levels, in feet, with referenie to measuring point Well t Water Well Water Well W ater No. Dte level No, te level No. Dte evl Orange County Orange County Orange County S(Cont'd,) (Cont'd.) (Cont'd.) 1943 1943 1932 22 Jun. 10 -15.85 29 Jun. 25 -40.47 35 Sep. 9 -37.65 17 -16,00 Aug, 19 -39.28 1933 25 -16.14 Nov. 22 -35.45 Aug. 19 -15.00 1926 1934 30 Mar. -46. May 14 -36.9 1926 1943 15 -35.5 23 Oat. -45. May 17 -48.85 Jun. 20 -27.9 1943 25 -48.45 1943 May 18 -48.94 May 12 -38.98 25 -38.57 1927 19 -38.94 Jun. 10 -39.32 31 Feb. -40. 31 -39.00 1943 Jun. 8 -39.20 1926 May 17 -40.89 24 Ot. -23. -25 -40.29 1930 1943 Jun. 10 -10.84 36 Aug. 9 -31.08 Jun. 16 -34.90 17 -40,96 28 -32.55 25 -41.01 O.t. 4 -34.42 1926 Aug. 19 -39.93 1931 25 De.. -43. 0it. 20 -38.20 Mar. 23 -35.30 May 13 -34.33 1926 1927 Jul. 10 -36.90 26 Mar. -36. 33 Feb. -40, Aug. 7 -37.25 1932 1926 1926 Sep. 9 -39.25 27 Mar. -41. 34 Nov. -35. 1933 1943 1913 May 11 -40.9 May 17 -46.83 Jun. 25 -40.94 Nov. 22 -37.1 25 -45.89 Aug. 19 -39.74 1934 Jun. 10 -46.59 Mar. 12 -38. 1930 May 14 -38.5 1926 35 Aug. 9 -29.65 22 -34.8 28 Jul, -34, 28 -31.10 Jun. 4 -36.5 1943 0-ft. 4 -32.9 1943 May 17 -12.96 1931 May 11 -40.00 .25 -42.09 Mar. 23 -33.85 19 -40.46 Jun, 10 -42.77 May 13 -32.82 Jun. 8 -10.60 Jul. 10 -35.33 Jul. 1 -40.80 1943 Aug. 7 -35.65 Aug. 20 -38.8 29 Jun. 16 -40.35 I_______I ___ ^_______________

PAGE 54

53 Table 2 Cont'd, Well Water Well Water Well Water No. Date level No. Date level No. Date lavel Orange County Orange County Orange County (Cont'd.) (Cont'd.) (Cont'd.) 1930 1934 1943 37 Aug. 9 -31.00 38 Jan. 1 -37,2 40 May 19 -34.86 28 -32.50 Feb. 26 -37.6 Jun. 8 -35.29 Ont. 4 -34.48 Mar. 12 -37.2 Jul. 1 -35.14 1931 21 -37.8 Aug. 20 -34.1 Mar. 23 -35.55 Iay 14 -37.5 May 13 -34.39 15 -35.6 1931 Jul. 10 -36.90 16 -36.1 41 Jul. 10 -31.75 Aug. 17 -37.25 17 -31.1 27 -32.00 1932 22 -32.7 Aug. 7 -32.25 Sep. 9 -39.25 29 -32.8 1932 1933 31 -33.8 Sen. 9 -34.0 May 10 -41.0 Jun. 5 -34,8 1933 Nov. 2 -37.1 8 -35.1 May 10 -35.5 1i43 19 -25.9 1943 May 11 -40.79 20 -26.2 May 11 -36.12 Jun. 8 -40.67 21 -26.9 Aug. 20 -39.7 1943 1931 liy 11 -39.85 42 Aug. 7 -40.1 1930 19 -39.73 1933 38 Aug. 9 -28.29 Jul. 1 -40.23 Nov. 22 -40.1 28 -30.19 Aug. 20 -38.8 1934 29 -30.5 Ot. 28 -36.9 May 18 -39.6 0"t. 4 -32.8 Jun. 19 -34.6 1931 1931 21 -35.3 Mar. 23 -33.64 39 Aug. 3 -34.0 22 -35.5 khy 13 -32.5 7 -3,1.03 26 -36.0 15 -33.0 1932 1913 Jul. 10 -35.8 Sei. 9 -36,0 M'v 12 -13.49 14 -35.80 1933 Jun. 8 -43.62 18 -35.84 May 10 -38.0 Aug. 20 -42.69 20 -35,409 Nov. 21 -33,83 Aug. 3 -36,01 1934 1930 7 -36. 1 MlIr. 12 -35,.: 13 Aug. 9 -37 82 14 -36,0 1943 28 -39,0 1932 May 11 -37 59 Oct 5 -40,74 Sep, 9 -38.4 19 -;3? ,3 1931 1933 Jun. 23 -37 .'? Mar. 23 -.1 .60 Mav 10 -40.21 Aug. 21 -36.5 hMy 13 -10 5 Nov. 21 -357; Jul. 10 -4? 87 27 -35.6 1943 Aug. 7 -43.25 Deo. 28 -37.0 40 Mqy 11 -35.03 ---------. .,----_ __ _________

PAGE 55

34Table 2 OCnt'd, Water levels nfeet ith reference t, measurinig pintWell Water Well Iter Well S ter jDate el Date te DateNo level In. level N. l ivOrange'County Orange County Or':e County( nt' ) ( d. d. ) (Cnt'd.)1932 1931 9l 4343 Sep. 9 -45.3 46 Mar. 23 -35.8 47 Aug. 20 -16.001933 May 13 -34.42 27 -15.79May 11 i 46.9 Jul. 10 -36.70 SeD. 3 -15.79SNov. 21 -43.1 Aug. 7 -37.00 .0't. 17 -12,351934 1932 20 -12.54Mar. 12 -44.3 Sen. 9 -38.9 24 -12.76May 18 -42.5 1933 30 -12.98Jun. 4 -43.0 0 Nay 11 -40.519 -37.3 Nov. 22 -36,9 19 3021 -38.2 1943 48 Aug. 29 -28.122 -38.1 4 liay 12 -39.75 0"t. 4 -31.8126 -38.9 19431943 1930 May 11 -38.88Lay 12 -46.64 47 Se. 2. Jun. 8 -39.01Jun. 8 -46.76 1931 23 -39.1514 -5.5 19431930 15 -5.5 49 I"ay 12 -54.4944 Aug. 28 -25.42 17 -5.67 Jun. 3 -54.00Ot. 4 -27.2 19 -5.75 8 -50.971931 22 -5.74 Aug. 20 -53.4'r. 2"3 -28.06 29 -5.70lay 13 -26.87 Aug. 9 -6.0 1943Jul. 10 -30.1 12 -6.1 50 Jup. 8 -29.3021 -29.9 13 -6.2 2:. -29.46Aup. 7 -30,537 16 -6.1 Aug. 20 -32.41932 1 ,Sep. 9 -32,77 Jan. 6 -11.75 19301933 Feb. 9 -12.R9 51 Aug. 28 -29.40May 10 -34.7 nir. 8 -13.45 0lt. 4 -30.90EV. 21 -30,3 A-r. 5 -14.C6 19311943 Jun. 16 -12.96 par. 22 -32.L:ay 11 -33,57 Jul. 14 -13.95 Yav 13 -29.119 -34.4 51 3en. 9 -11.3 Jul. 10 -53.11Jun. 23 -34.84' Nov. 18 -14.48 22 -32.8Aug. 21 -3'.3 1933 Au-. 8 -33.6kIay 10 -18.0 11 -33,511930 1943 193246 Aug. 9 -31,79 Jul. 31 -16.27 Sep. 9 -36.3128 -32.85 Aug. 7 -16.20 1943O0t, 5 -34.4 13 -16.33 May 11 -38.47_ __ __________

PAGE 56

." 55 Table 2 Onnt'd. Wa j ter levels. n feet, with referenle tn measurin_ point Well ater \ll' Water WJell Water N Date Date Date Slevel No. level No. level Orange County Orange Cnunty Orange County (Ornt'd.) (Cont'd.) (Cont'd.) 1943 1943 1931 51 Jun. 8 -38.56 53 May 11 -38.32 56 Jul. 17 -59.4 23 -38.60 Jun. 8 -38.34 31 -59.7 Aug. 20 -37.2 23 -38.46 1932 Aug. 20 -37.0 Jan. 6 -61.9 1931 Feb. 9 -63.0 52 Mar. 23 -34.6 1931 Mar. 8 -63.1 Jul. 10 -36.0 54 Jul. 16 -25.35 Apr. 4 -63.28 18 -36.05 Aug. 15 -25.15 Jun. 16 -63,79 Aug. 7 -36.3 1932 Jul.. 14 -63.67 14 -36,4 Se.' 10 -28.1 Aug. 29 -63.97 1932 .1933 Sep. 7 -64.08 Sep. 9 -38,5 May 10 -29.7 10 -64.0 1933 IT v. 22 -25.65 NYv. 18 -64.50 May 11 -40.2 1934 1933 1935 Mar. 21 -27.3 May 10 -64.0 May 18 -35.6 May 18 -25.0 Nov. 27 -60.9 22 -34.9 1943 1934 Jun. 19 -30. May 15 -23.80 May 18 -62.3 21 -30.8 Jur. 5 -27.35 Jun. 7 -61.9 26 -,31.5 12 -28.86 29 -58.6 1943 26 -29.23 1943 May 12 -40.18 Aug. 13 -26.94 May 15 -64.87 Jun. 10 -40,14 24 -26.75 Jun. 5 -61.99 12 -65.08 .1931 1931 Aug. 11 -6 1.69 53 Mar. 22 -31.65 55 Jul. 16 -15.7 May 13 -30.37 1932 1931 Jul. 10 -32.84 Sep. 10 -19.0 57 Aug. 13 -1.0 1932 1933 1932 Sep. 9 -36.1 May 10 -20.6 Jan. 6 -2.66 1933 Nov. 22 -16.55 Feb. 9 -3. May 10 -38.1 1934 Nov. 22 -33.3 May 18 -16.0 1931 27 -33A. Jun. 18 -10.0 58 Jul. 14 / 9.3 1934 1943 1932 May 18 -34*4 NMay 15 -20.63 Jan. 6 / 8.4 22 -32.8 5 -20.33 Anr. 4 / 3.4 Jun. 7 -33.7 12 -20,38 Jun, 16 / 5.9 18 -9.4 Aug. 24 -18.98 Jul. 14 / 4.6 20 -27.3 Aug. 2 / 5.7 g6 -28.6 Se.p 7 / 4,7

PAGE 57

56 Table 2 Oont'd, Water levels, n feet, with referenne to measuring point Welll W ater Well -Water ell Water No. Date level No. Date level. Date lev Orange'County Orange County Orin.e County (Cont'd.) (Cont'd.) (Cont'd.) 1931 1931 1943 59 Aug. 12 -21.3 63 Aug. 5 -15.15 79 Aug. 20 -39.92 1933 1933 Den. 18 -22.8 1May 11 -17.6 1913 1943 Nnv, 24 -1i.6 81 May 13 -55.27 May 15 -28.76 1934 22 -54.68 Jun. 12 -28.74 Jun. 4 -8.2 28 -55.00 Jun. 4 -55.17 1943 1931 29 -55.13 60 Jun. .12 -45,14 64 Aug. 5 -21.8 Aug. 18 -56.47 1933 1931 V1y 11 -24.2 1943 61 Jul. 14 -40*4 Nov. 24 -21.25 82 MYy 13 -57.52 1932 1934 22 -56.90 Jan. 6 -42.8 Jun. 4 -5. 28 -57.21 Feb. 9 -15.2 1943 Jun. 4 -57.42 Apr. 4 -16,0 Aug. 7 -5.2 11 -57.51 Jun. 10 -41.10 29 -57.18 Jul. 14 -.4,91 1933 Aug. 18 -56.69 Aug. 2 -45.3 65 Mqy -22.6 Sep. 2 -43.12 1943 1943 9 -44.2 Jun. 19 -26.89 83 May 14 -15.63 1933 Aug. 2 -25.72 21 -45.25 .MNy 10 -47.15 Jun. 4 -45.33 25 -46.8 1933 11 -45.5 Nov, 23 -42,1 66 Nov. 28 / 7.1 18 -45.;3 1934 25 -13.4 Jun. 5 -52.5 1943 Aug. 18 -44.6 6 -36.4 69 IM-y 8 -37.30 1945 1913 1ay 5 -47.91 1943 84 May 14 -50,01 Jun. 12 -47.93 71 Miy 8 -30.75 21 -45.80 Aug. 21 -42.10 Jun. 4 -45.81 1943 11 -45.9 1931 78 My 19 -44.41 18 -46.2. 62 Aug. 8 -19.1 25 -43,96 25 -46.3 1933 Jun. 10 -14.63 Aug. 18 -45.2 May 11 -24.3 17 -41,89 1934 25 -14.93 1941 Jun. 2 -1.9 Aug. 19 -43.5 85 Apr, 5 -48. 1943 I .21 -.14 ',y 11 -1955 86 A 41 Aug. 21 -24.14 79 May ii -19,55 86 Apr. 1 -15.6

PAGE 58

57 Table 2 Cont'd. .Water levels, in feet, with reference to measuring point Well Water V Well Water Well Water No, Date level No, Date level No, Date level Orange Oounty Orange County Orange County (Oont'd.) (Oont'd.) (Cont'd.) 1943 1943 1943 86 May 14 -45.79 92 iMay 21 -41,94 98 Jun. 25 -30.23 21 -44,62 28 -43,72 Aug, 19 -37.2 Jun. 4 -45..67 Jun. 4 -43.41 11 -4:5.74 11 -.43.23 1937 18 -46.04 18 -43.7 99 Aug. 11 -'17.6 25 -46,13 25 -43.8 Aug. 18 -43.9 Aug., 18 -12.6 1943 100 Jun. 17 -48,36 1941 1943 25 -48.11 87 0.ti -45. 94 May 13 -52.25 Aug. 19 -47.12 22 --51 61 i94X 28 -51 .97 1936 88 May 13 -29,98 Juni 4 -.52 17 101 Nnv. 4 -37. 21 *.51.75 11 -52,25 28 -24 28 18 -52.40 1934 Jun. 4 -24,34 25 *.52.56 102 Nov. -45.5 11 -34.56 Jul. 30 -49,6 25 -30.3 Aug. 19 -48 2 1943 Aug. 18 -18,9 103 May 21 -46.34 1943 25 -15-95 1943 95 May 18 -46,25 Jun. 10 -46.o6 90 May 13 -51,94 25 -45,60 21 -51.72 Jun. 10 -46.10 1943 28 -.51.66 104 May 21 -47.80 Jun. 4 -51 ~83 1943 25 -47,44 11 -51,97 96 May 19 -34.28 18 -52.10 25 -33.86 1943 25 -52.25 Jun. 10 -34.60 105 May 21 -47.79 Aug. 18 -51.18 25 -47 43 1943 Jun. 10 -48,12 1943 97 May 19 -31,37 17 -48.20 91 May 13 -42.78 25 -31 .00 25 -48 25 21 -42.64 Jun. 10 -31.67 Jul. 1 -18.25 28 -42,08 .17 -31,74 Aug. 10 -47,6' Jun, .4 -42.58 25 -31 94 19 -16.95 11 -42.73 Aug. 19 -30,52 18 -42.5 1943 25 443.32 1943 106 May 21 -49.76 Aug. 18 -42,c0 98 May 19 -36.85 25 -49.36 25 -37.63 Jun. 10 -50.09 1943 Jun. 10 -38.34 17 -50.16 92 -May 14 ..43.63 17 -38.46 25 -50.27,

PAGE 59

58 Table 2 Cnnt'd. SWater levels, in feet, with referenne to measuring point_ Well Water Well Wat r VWlll Water Date l Date a Data No. level No levi No. level Orange County Orange County Orane County (Cont'd.) (Cont'd,) (Cont'd.) 1943 1943 1943 106 Aug. 19 -49,15 118 May 26 -16.58 139 May 26 -14.85 Jun. 10 -17.12 Jun. 10 -15.37 1943 17 -15.52 108 May 23 -46.88 .1943 25 -15.61 30 -47.31 121a Jun. 14 -19.30 Aug. 19 -11.46 Jun. 6 -47.66 13 -47.75 1943 1940 20 -18.10 121b Jun. 14 -24.80 140 Aor. -53. 27 -47.70 Jul. 25 -47.15 1943 1943 Aug. 22 -5.90 121n Jun. 14 -24.42 141 Jun. 17 -42.Q4 17 -24.85 25 -42.98 1936 25 -24.71 Aug. 19 -11.4 110 Jul. -41. Aug. 19 -23.58 1928 1943 1923 143 Jul. 1 -43. 112 May 26 -44.53. 122 Jun. 7 -12. Jun. 10 -45.05 1924 17 -45.18 1923 144 Aug. 2 -34. 25 -45.29 124 Jul. -33. Aug. 19 -45.8 1943 1926 155 May 31 -31.93 1943 126 Nov, -19. 113 Jun, 25 -38.16 1943 Aug. 19 -37.51 1925 156 May 31 -34.97 127 Jnn, -28. 1925 19-13 114 Jun. 4 -22. 1943 157 Mayr 31 -34.0 131 May 26 -45.92 1943 Jun. 10 -46.60 1943 116 May 26 -44.56 158 May 31 -38.23 Jun. 17 -45.23 1921 25 -45.43 135 Sep, -43. 1943 Aug. 19 -44.24 159 Jun. 8 -37.28 1943 1943 136 nMy 27 -45.85 1913 117 May 27 -43.75 160 May 31 -30.40 Jun, 10 -44.00 1943 17 -44.17 138 May 26 -16.76 1943 25 -44.11 Jun. 10 -47.27 161 May 31 -31428 Aug. 19 -42.9 Jun. 17 -34.54

PAGE 60

S59 Table 2 Cont '4. iater levels, n feet, with referenoe to measuring point Well Water Well Water Well Water No. Dte level Nn. Date level No. Date level Orange County Or-ane County Orange County (Cont'd.) (Cont'd.) (Cont'd.) 161 -Jun. 25 -34.69 177 Jun. 3 -39.31 222 Sep. 4 -56.8 Aug. 19 -33.0 Jul. 10 -39.47 25 -39.79 1943 1943 Aug. 20 -38.68 223 Sep. 4 -56.22 162 .May 31 -33.57 11 -55.4 Jun. 8 -33.65 1943 25 -52.3 Aug. 20 -32.72 178 Jun. 3 -12.98 Ot. 9 -54.6 10 -43.14 15 -53.80 1943 Aug. 20 -43.23 16 -53.92 169 Jun. '1 -46.15 20 -51.61 10 -46.28 1943 30 -55.72 17 -46.37 179 Jun. 3 -33.89 25 -46.45 8 -34.10 1943 Aug. 19 -45.1 Jul. 1 -34.26 224 Sep. 4 -56.14 Aug. 20 -33.26 11 -55.2 1943 Ot. 15 -53.83 171 Jun. 1 -42.42 1943 20 -54.65 10 -42.56 184 Jun. 5 -65.70 30 -55.27 17 -42.69 12 -65.78 25 19:43 Aug. 10 -42.00 1943 242 Sep. 1 -38. 19 -41.5 190 Jun. 25 -46.66 -..Aug. 19 -15.5 Lake County 1943 172 May 31 -34.63 1943 1943 193 Jun. 17 -34.81 17 Aug. 11 -12,33 1943 25 -34,85 174 May 31 -33,27 Aug. 19 -33.45 Os,'ola County Jun. 8 -33.48 Jul, 1 -33.65 1943 1934 Aug. 2 -32.50 197 Jun. 21 -23.11 3 Des. 21 / 2.66 Aug. 21 -21,09 1943 1943 175 May 31 -35,81 1943 Aug. 9 / 2.6 Jun. .8 -38.00 199 Jun, 23 -17.0 • Seminole County 1943 1943 176 May 31 -35.80 210 Aug. 21 -3.17 1938 Jun. 8 -35.99 35 Nov. 18 /16.7 Jul. 1 -36.21

PAGE 61

60 Table 2 Oont'd, 'iWater levels, in feet, with referenne to measuring point. elatr ell VtWterr Well WIter eiter rn. Date level No, Date level N. Date level Saminoleo ounty (Cont'd.) 1939 35 Feb. 2 /17.9 1941 Aug. 28 /18.9 Nov. 20 /19.0 1942 IMy 30 /18.2 Jul. 25 /19.0 Aug. 18 /18.5 1943 hly 8 /16.5 Junv 9 /16.6 Jul. 30 /17.1 1913 36 Aug. 26 /9.7

PAGE 62

BILIOGRAiHY Cole, W. .(1941) Stratigraphii and paleontologii studies of wells in Florida, Florida Geol. Survey Bull. 19. -----(1942) Stratigraphin and paleontologa studies of wells in Florida--No. 2, Florida Gerl. Survey Bull. 20. --------(1944) Stratiraphipn and paleontolngi, studies of wells in Flrida..-No. 3, Florida Geol. Survey .ull. 26 (in press). Cnoke, C. W., and Mossom, Stuart (1929) Geology of Florida, Florida Geol. Survey, 20th Ann. kept. 1927-1928, pp. 29-227, pis. 1-29. Kingston, S. P. (1943) Contamination of water supplies in lirmstone formations, Am. Water Works Asso.. Jour., Vol. 35, No, 11, pp 14150-1156. Matson, G. 6., and oanford, Samuel (1913) Geonlgy and ground waters of Florida, U, S. Geol. Survey ,;ater-Supply Paper 319. Sellards, E. H. (1908) A relimina. report on, th. underground water supply, of nentral Florida, Florida Geol. 6urvey Bull, 1. ---------(1910) Some Florida lakes and lake basins, Florida Geol. Survey 3d Ann. Rept., 1909-1910, pp. 43-76. ---------and Gunter, Herman (1910) The artesian water supply of eastern Florida, Florida Geol. Survey 3d Ann. Rept., 1909-1910, pp. 77-195. Stringfield, V. T. (1933) Ground-water investigations in Florida, Florida Geol, Survey Bull. 11, ------.---(1936) Artesian water in the Florida Peninsula, U. S. Geol. Survey Water-Supply Paper 773-0, pp. i-iv, 115-195, pis. 6-16. Stubbs, S. A. (1937) A study of the artesian water supply of Seminole County,. Florida, Florida Anad. Sni. Froi., vol. 2, pp. 2 -36,

PAGE 63

1 Well Well Well Well S" 54 OCMIDDLE EOCENE .; .-; \ g. .-.--, -* -: ._7 0o A C 4 0 1 I 41/ *OGNI .: MIDDLE.. -O' N i0 V .O<:oH i : OR N -oo -4 A Based o well cutings land. logs on file at the Florida Geoogical Survey. Sandy, phosphotic EXPLANATION S, -ppBuff to brown.. recrystallized limestone -n Cased portion of well S8. 0 .Uncased portion of well -I 00 -.. APPROXIMATE HORIZONT4AL SCALE IN MILES • 80 0 -" -:" : ...: .... .. • -, o-0-.--0-4 .950 ..-. ). ..--_. --

PAGE 64

S ..'. I -FIGURE 2 o Well Well S 222 56 Well Well 161 233 Well 46 100 NO -No SAMEAN SSASA LEVEL O ALES L. .. a2 EGi^ PLEISTOCENE 8 RECENT NOGAL -oo"/OLE EOCENE | MIDDLE EOCENE 410"06 EO0ENE -200 -300 -H *400 -500GEOLOGIC SECTION ALONG LINE B-B' IN FIGURES 7 a 9 Based on well cuttings and logs on file aof tne Florida Geological Survey -6ooEXPLANATION --] Unconsolidated sand : Conglomeratic ond clay limestone Marl Sandy, phosphotic r nnrl ilimestone -700 Bs Shell marl porous limes to ream .. J ... lyi Buff to brown Phosphatic mar recrystallized limestone -80 oo -Cased portion of well SUncased portion of wel i HR 0 N : .2"e 3 APPROXIMATE HORIZONTAL SCALE IN MILES -900 APPROXIMAE HORIZOTAL SCAL IN-MILE

PAGE 65

_ :64 SFIGURE 3 Iso Well 54 Well Well Well Well WIl 94 224 82 81 3 Wll Well 00 232 49 soEOO PLE/STOCENE S REAENT PL E/STOCENE PNEFIGURES RE| N| s G,.. RE.ENT PLEI.TOCENE 8 RGN MEAN -o0 SEA LEVEL HAWTHOR N ORMEAN HA W THORN SEA LEVL .1000 0004,4 0 G A L A O A LA IDOLE IOCENE tMIDDLE EOCENE MIDDLE EOCENE S500o -350 S400 -450 GEOLOGIC SECTION ALONG LINE C-C' IN FIGURES 7 a 9 Based on well cuttings and logs on file at the Florida Geological Survey 50oo EXPLANATION -550 M2 Unconsolidated sand Conglomeratic and clay limestone .6 0 Morl i ad, phospholic .•5o Shell morl White to cream Li n m porous limestone .00 Phophatlcrl ~White to cream oo-i Phosptic r recrystallized limestone I -Buff to brown recrystollized limestone -750 7 -Cosed portion of well .eoo -Uncased portion of well 0 .5 APPI IMNATE HOAIZONILM SCALE IN MILES -" .'.

PAGE 66

FIGURE 470 AIS65.wWell No. 47-J0 __________________4 I-ww I N.60 b, Well No. 3865Well No. IAFLZ tfoSsWAT-ER LEVELS IN THREE7 ORANGE COUNTY, WELLS'AND MONTH LY RANFALL. ... i:, '-\ --... ---AIN:Oii N

PAGE 67

-FIGURE 5w "*__ SIS TOW--S A -8 ,taa i E L T -. Ca0 E.Z _-NContour lines represent apprxinately the height, In feet."contour line n eorgi.SSCE MILSG I.-t! 1f 3 rAND PART OF GEORGIA O WA to which water will rise with reference to mean se level Incontour line in Georgia. ,~---o o ,o -*~APPit TE CLE IN MILESAND PART'OF GEORGIA LUAND PARTOF GEORGIA ri

PAGE 68

221 21904.0'Lfa~V \I ~ N~. i:~~\5AKE 54-,A~454;'.FA IR V* Ei 0FAIRI3 0 *\ 0-16210-1670--26 0~9~~~21-i. A o0e 03 1OWAM rL A -E. .-o IT 740--40292 Fr32164 -44(6 'IJ20-28 94iz~:LiiII0-16-4elog 9 2180 Cr s*1 08 m ., q0-122191 so)2 10 116 63,I~i110-46 24 00 101 0 -8bO L1109 0 0120 92-,13 --144I ~-T t,, c~lo02~ to0-22~1410 LA 7-27C 8 89'. ilk ~ I.:: ;-l-8 IN 4 r~~-172 -19 4p 14 99 15143 -I .:: j ~:210 194 146--11 c O 132 1 456 "5 0 5 1:: L 121,:~,77 145a 121 121bl'r. ~3s 8 150 (07, P410 32 J'. -::t .;."0 144-174 '14 : 9'12-138 23 '1 1Mf 14s Ac 14407 \ L K I -49n 171 V~L~71 ~44 178 .sExP~nntl~/ bB0175 _J76\K CNWaasor lttAI 9044) 04~m,6"Wrrrccror aU rr bo~rnrn rs-234. k OO~b' Ir 464 ~) pjPyrCN m EAA14)1-59r~)~ 9

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S -. .* ., FIGURE 7LAKEn EUST4'MONR OE,, EXPLANATIONL -.-. AContour lines represent the height, jn feet, to whichSI water would rise above mean sea level in tightly cased wellsLA,,^ K4 ,_LAKE CO. \'nj l[^ i10that penetrate the Eocene limestones, August 1931.' AK( LAKE Co. >i*LlOpL RoesL o0 Drainagewell'if I&T Supply well0' I Observation well on which altitude ofS, 0 '" measuring point has beenestblished-O-ao do + Well on which woater-level recorderI 0 1 . $TI is installedS, oona4111 0 6 T Flowing springpP L. ORh /MAN 4. & PRAIR f L.L ME* L L.S IM1APk--L L \\OWLLNLAE A TOHOPEKALIA .SE ORANGE C.-e -f-l o kOL C p SC OLA tt0 Pl.0o et E. *-,l --of WelMAPP 'f R G OU Y A F AN 'I L. E i5n tiAn ofV Wtow" t'n-M."11 MAP..F OR.ANDO. --' ., " -'

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.....63.A Z EO-s. ./' 2-20 0V-" 03 \O -_s '? +;-, C-" N \-6 7 \10"' ,"w'a-., 0 .'0-34-\ ,-2 4>"4 ':.,).: ., :",LAOW LA0-244 9-:-.:.w., ..4-2 4,0-/f .....9 .. 0. ......so .,i;L e-a4ato_0 -jet.. .AR -i+" 1 a" t+ ^4 1XP AN-IONowlehwter would rte bo vemen -ea lvel -nle ,-" ghtly coud we tha-t penetrat e t"e ., .. ., , r ..', .::"Ito-go A ts'e"V0'0-100 '0'--0 w-1lt0 -1pl ae*, .... ,f, ... .^ -L' .-' / 'Obwv"tlonwHelon hialtitud of ih atrel e erisas On slle 0, 3... 93 a ,' ** .** . us ,.o... ,w , "l. ,4bs-1io well4, t ihor e .o.j 415 co,,5.,,' itii', 1as~21s, ,,ba.bd.. ,siee stoMAP OFORLANDO AND VIINITY,L, AYEr, 95 C 0O \ # .... .r ,9,"-'. ~ "-43

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S, ...' .FIGURE 9. .-V' ." / 7, oEXPLANATIONO 6^ B ,s CO. Contour lines represent thp height, in feet, to whichit s*^ \ie y4E water would rise above mean sea level in tightly cased wellsL. $ 3 4AKEl A + C o that penetrate the Eocene limestones, August 1943.L o aA ORANGE CO.S ., 0 Droinage wellS0A \ ( 1 LA o Supply wellb &V e f Observation well on which altitude of% s U t 1 measuring point has been establishedL SAAMANO/ 35 St A $/ o --Well on which water-level recorder2 \ \ 2 fl O--eo s0.-3 n -i isinstalled60A t L. \ Flowing springSA aPEAA LA"\-; r '"" ..... "" "-"^S \ o"\ ,__ L oCV.,v^ 'L ^1^ o^\[ II600 ofIG OWL 1MAP OF ORANGE COUNTY AND PORTIONS OF ADJACENT COUNTIESRepresenting the Piezometric Surfoce and Showing Locations of Wells ;POL C. SCELA00ArtoWH EKAIOLAKEtit .B~MA F RNE ONTA DPOTON FADAEN.CYNIERorsnigtspeo.sieSroc n hwn.Lcio f il

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F GURE 10 /^ I;; i ^^r r K,, .; 24 L r S,-< +I r r -. ") / ,,<> 4, (A VLLAKE. 2-234 0-56 OW -ire ---1. /,L .' .,. .2; .., ..,. ,, ..<.." 0, S,*0 -,,.:,,, PS9 Q, A0 1 -476 -234 --mestoes August 1943. a -... o Dr \i .nage wellb Supply wi .ll/ -. \_1 o .o. '2 A. 19 a ,0 ..... .,:' -,.i--i.. 4. ". 0 ..'.,,, "*,:.";;.^ Observation well an whIch altItude of f A -W67 easuring paInt has been est blIshed 0-.. 6. ., ,,23 /-04 0 .,T MAP OF ORLANDO AND VICINITY 2 a 5 10 I9L .+;:'.',, In tig~tly osl w lls that penetrohf the Eocimee :0-1,6 193-40 IF ;,,. ... ,4,, ,,,,,,, 1 r014, 1 ""' ,, MAP OF ORLANDO AND VICINITY 38 78,, ,',.0 ---4 4 ,n ,1,, CAc )01 CL~1.. .' .::P~ 4)-39' MAIN CA 7t:. rooer -Ito 8 36 I 155 u u r ;~; : `:~~.:

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FIGURE II 0 -No. 110 No 9 No. 146c No. 19 No. 92 No. 91 No. 94 No. 807850 --0--" t K I __,_ F ~-----------------------------------^-------------------------------------------S-.ook -U _0 O 100 1 -300S0 100 200 300 400REVOLUTIONS PER MINUTE.400 -< 0 100 200 300 0 50 100SREVOLUTIONS PER MINUTE RRPM.I----LEGEND-500Velocities are expressed in revolutionsper minute of current meter.-600 -SReported depth of cased portionP -of well.0 50 100R.P.M.Uncased portion of well.-T0 -0. 100 200UR.RM. Obstruction below which current0 so 0oo ometer would not pass.RPIM..800 -0 60 100 Question marks (?) indicate that depth is uncertain.RtM.35806GRAPHIC REPRESENTATION OF RELATIVE VELOCITIES OF FLOWAT VARIOUS DEPTHS IN FIVE SANITARYAND THREE ORAINAGE WELLS.