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UNITED STATESDEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
HYDROLOGIC DATA FROM MONITORING OF
SALINE-WATER INTRUSION IN THE CAPE
CORAL AREA, LEE COUNTY, FLORIDA
By Daniel J. Fitzpatrick
Open-File Report 82-772
Prepared in cooperation with the
CITY OF CAPE CORAL
Tallahassee, Florida
1982
UNITED STATES DEPARTMENT OF THE INTERIOR
JAMES G. WATT, Secretary
GEOLOGICAL SURVEY
Dallas L. Peck, Director
For additional information write to:
U.S. Geological Survey Suite F-240 325 John Knox Road Tallahassee, FL 32303
CONTENTS
Page
Abstract 1Introduction 1Hydrologic data collection network 2Well-construction data 2Water-quality data 5Water-level fluctuations 5Lithologic data 6References cited 6
ILLUSTRATIONS
Figure 1. Map showing location of rain gages and monitoring wells that tap the upper and lower Hawthorn aquifers in Cape Coral and adjacent areas 3
2. Map showing location of monitoring wells that tap the surficial aquifer in Cape Coral and adj acent areas 4
3. Generalized section showing the geologic forma tions, lithology, and water-bearing units underlying Cape Coral 7
4. Hydrograph of water levels in well 2434 that taps the lower Hawthorn aquifer and municipal pumpage from the lower Hawthorn aquifer by the City of Cape Coral 9
5. Hydrograph of water levels in well 581 that tapsthe upper Hawthorn aquifer and municipal pumpagefrom the upper Hawthorn aquifer by the City ofCape Coral 10
6-19. Hydrographs of water levels in selected wells that tap the upper Hawthorn and surficial aquifers:
6. Wells 702, 2702, and 3212 23
7. Wells 1059 and 721 24
8. Wells 2640 and 3203 25
9. Wells 2703 and 3213 25
10. Wells 2643 and 3206 26
11. Wells 2644 and 3207 26
iii
ILLUSTRATIONS (Continued)
Page
Figure 12. Wells 2641 and 3204 27
13. Wells 2701 and 3211 27
14. Wells 2244 and 2536 28
15. Wells 2642 and 3205 28
16. Wells 2645 and 3208 29
17. Wells 2700 and 3210 29
18-19. Hydrographs of water levels in wells that tap the lower Hawthorn aquifer:
18. Well 2435 30
19. Well 2526 30
TABLES
Table 1. Monthly rainfall data at the reverse osmosis andlime-treatment water plants in Cape Coral 8
2. Construction data for observation wells in CapeCoral and adjacent areas 11
3. Chloride concentrations in ground water fromthe upper Hawthorn aquifer in Cape Coral and adjacent areas 14
4. Major ion concentrations in ground water from the upper Hawthorn aquifer in Cape Coral and adj acent areas 15
5. Chloride concentrations and specific conductance in ground water from the surficial aquifer in Cape Coral and adjacent areas for May 1980 21
6. Major ion concentrations in ground water from the lower Hawthorn aquifer in Cape Coral and adjacent areas 22
7. Lithologic logs of wells in Cape Coral andadjacent areas 31
iv
CONVERSION FACTORS AND ABBREVIATIONS Factors for converting inch-pound units to International System (SI) of metric units
Multiply By To obtain
Length
inch (in) 25.40 millimeter (mm)foot (ft) 0.3048 meter (m)mile (mi) 1.609 kilometer (km)
National Geodetic Vertical Datum of 1929 (NGVD of 1929); A geo detic datum derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called "mean sea level." NGVD of 1929 is referred to as sea level in this report.
HYDROLOGIC DATA FROM MONITORING OF SALINE-WATER INTRUSION
IN THE CAPE CORAL AREA, LEE COUNTY, FLORIDA
By Daniel J. Fitzpatrick
ABSTRACT
As a result of declining water levels and saline-water intru sion in the Cape Coral area, the U.S. Geological Survey in coopera tion with the City of Cape Coral established a monitoring well net work in Cape Coral and adjacent areas in 1978-79. The network was designed to provide indication of lateral movement of saline water in the upper part of the Hawthorn Formation; to provide trends in water levels; and to provide background data from: (1) the aquifer in the upper part of the Hawthorn Formation; (2) the aquifer in the lower part of the Hawthorn Formation and upper part of the Tampa Limestone; and (3) the surficial aquifer. The monitoring well net work consists of 77 wells.
Data collected in this network since 1978, as well as data collected from selected wells in the network prior to 1978, are compiled in this report. These data include water-quality data from 69 wells, water-level data from 29 wells, and lithologic logs from 18 wells. Other data compiled in this report include munic ipal pumpage and rainfall data supplied by the City of Cape Coral.
INTRODUCTION
The artesian aquifer in the upper part of the Hawthorn Forma tion is a major source of water supply for municipal, domestic, and irrigation uses in Cape Coral. Wells that hydraulically connect the aquifer in the upper part of the Hawthorn Formation to over lying and underlying saline water-bearing units provide a direct conduit for saline-water movement into the aquifer. This condition has resulted in a deterioration of the water quality in parts of the aquifer (Boggess and others, 1977). Declines in water levels in some areas have increased the potential for inland movement of highly saline water from the coast, as well as movement of saline water from overlying and underlying water-bearing units into the aquifer.
The U.S. Geological Survey in cooperation with the City of Cape Coral designed and established a monitoring well network in 1978-79 to evaluate the movement of saline water and water-level changes in the aquifer in the upper part of the Hawthorn Formation in Cape Coral and adjacent areas and to collect salinity and water- level data from the underlying aquifer in the lower part of the Hawthorn Formation and upper part of the Tampa Formation and from the overlying surficial aquifer.
The aquifer in the upper part of the Hawthorn Formation is locally designated as the upper Hawthorn aquifer. The aquifer in the lower part of the Hawthorn Formation and upper part of the Tampa Limestone is locally designated the lower Hawthorn aquifer. Although these aquifer names are not formally recognized by the U.S. Geological Survey, they are the local (Lee County, Florida) designations for the aquifers.
The purpose of this report is to present previously existing data as well as data collected from the monitoring well network during the initial phases of the investigation. The final phase of the investigation will evaluate the data.
HYDROLOGIC DATA COLLECTION NETWORK
Hydrologic data from the existing monitoring well network have been collected since 1978 for three aquifers that underlie Cape Coral and the adjacent area. The network of hydrologic monitoring sites now consists of 34 wells that tap the artesian upper Hawthorn aquifer, 6 wells that tap the artesian lower Hawthorn aquifer (fig.1), and 37 wells that tap the unconfined surficial aquifer (fig.2). Figure 3 shows the stratigraphic position and lithology of the aquifers (Sproul and others, 1972).
Water levels in five wells that tap the upper Hawthorn aquifer (fig. 1) were monitored by continuous recording devices. Water levels in selected wells that tap the three aquifers were measured monthly, bimonthly, or semiannually.
Water-quality samples were collected and analyzed semiannually from 1978-80 for wells that tap the upper Hawthorn aquifer. Back ground water-quality data for selected wells that tap the surficial aquifer and the lower Hawthorn aquifer were also collected.
Rainfall data (table 1) are collected at the City of Cape Coral's reverse osmosis plant in west Cape Coral and the lime water- treatment plant in south Cape Coral (fig. 1). Municipal ground- water pumpage data from the upper and lower Hawthorn aquifers at these plants (figs. 4 and 5) are also collected. Rainfall and pumpage data are supplied by the City of Cape Coral Utilities De partment.
WELL-CONSTRUCTION DATA
Construction data for 77 monitoring wells (figs. 1 and 2) are given in table 2. Also included are well numbers, aquifers tapped, lithologic logs obtained, and information on whether continuous water-level data are being recorded. The altitude of land surface, relative to sea level, is also given where known.
82° 10' 05'
26°45'
40
35
26°30'
82°00'
CHAIRLOTTE COUNTY
55'
LEE COUNTYzp
2526, 2646
1059EXPLANATION
> M| 0 WELL THAT TAPS THE UPPER HAWTHORN AQUIFER0 270I RECORDING WELL THAT TAPS THE UPPER HAWTHORN AQUIFER
§2526 WELL THAT TAPS THE LOWER HAWTHORN AQUIFERL* RAIN GAGE LOCATED AT THE LIME TREATMENT PLANTR+ RAIN GAGE LOCATED AT THE REVERSE OSMOSIS PLANT_____
1099 LOCAL WELL NUMBERI" ~" ~~ " "
llll
4 MILES
I6 KILOMETERS
Figure 1. Location of rain gages and monitoring wells that tap the upper and lower Hawthorn aquifers in Cape Coral and adjacent areas.
82° 10' 05' 82°00' 55CJiAlRILpTTE COUNTY
" "COUNTY"
26°45'
40'
35'
26° 30'
EXPLANATION
WELL THAT TAPS THE SURFICIAL AQUIFER
3249 LOCAL WELL NUMBER
4 MILES
6 KILOMETERS
Figure 2. Location of monitoring wells that tap the surficial aquifer in Cape Coral and adjacent areas.
Each well is identified by two numbering systems: a local number and a unique number. The local well number consists of a sequence number. This system is used in Lee County for ease of identification; however, the numbers are not necessarily unique as the well number could be duplicated in areas other than Lee County. The unique identification numbers are used for computer storage of data and are based on the grid system of latitude and longitude. These numbers consist of 15 digits and provide the geographic lo cations of the wells. The first six digits represent degrees, minutes, and seconds of the latitude; the next seven represent the degrees, minutes, and seconds of the longitude. The last two dig its are a sequential number within a 1 second grid. For example, if the latitude-longitude for two or more sites are identical, sequential numbers 01, 02, or 03 are assigned to give each site a unique number.
WATER-QUALITY DATA
Water samples were collected from wells that tap the upper Hawthorn aquifer to detect changes in water quality. Since 1978, chloride concentrations were determined semiannually (table 3), and analyses for major ion concentrations were made annually for wells in the upper Hawthorn aquifer (table 4). Analyses for major ion concentrations made prior to 1978 are also included in table 4.
Water samples from wells that tap the surficial aquifer were analyzed for chloride concentrations and specific conductance (ta ble 5).
Water samples from wells that tap the lower Hawthorn aquifer were analyzed for major ion concentrations (table 6).
WATER-LEVEL FLUCTUATIONS
Selected water-level data from wells in the monitoring well network are illustrated in figures 4-19. Data used in the hydro- graphs are based on either monthly, bimonthly, or semiannual tape measurements for those wells without continuous water-level re corders. Wells with recorders (table 2) are represented by hydro- graphs of the daily high on the last day of each month. Monthly water-level fluctuations in well 2434 that taps the lower Hawthorn aquifer and well 581 that taps the upper Hawthorn aquifer are il lustrated with monthly municipal pumpage in figures 4 and 5. In addition to well 581, long-term fluctuations in the upper Hawthorn aquifer (1966-80) are represented by wells 702 and 2702 in figure 6. In 1978, well 702 was replaced by well 2702.
Water levels in the surficial aquifer, relative to those in the upper Hawthorn aquifer, are illustrated in figures 6-17 where data from the two aquifers are available at or near the same lo cation. Hydrographs of other wells that tap the lower Hawthorn aquifer are shown in figures 18 and 19.
LITHOLOGIC DATA
Selected lithologic logs for wells from the monitoring well network are given in table 7. All logs were prepared by the U.S. Geological Survey.
REFERENCES CITED
Boggess, D. H., Missimer, T. M., and O'Donnell, T. H., 1977,Saline-water intrusion related to well construction in Lee County, Florida: U.S. Geological Survey Water-Resources Investigations 77-33, 29 p.
Sproul, C. R., Boggess, D. H., Woodard, H. J., 1972, Saline-water intrusion from deep artesian sources in the McGregor Isles area of Lee County, Florida: Florida Division of Geology Information Circular no. 75, 30 p.
DEPTH (feet)
100 -
200 -
300 -
400 -
500 -
600 -
700 -
SERIES
HOLOCENE, PLEISTO CENE, PLIOCENE
MIOCENE
FORMATION
UNDIFFERENTI- ATED DEPOSITS
TAMIAMI FORMATION
_________
HAWTHORN FORMATION
TAMPALIMESTONE
LITHOLOGY
SAND,FOSSILIFEROUS LIMESTONE,WHITE TO YELLOW, ~SANDY,MARLY,FOSSILIFEROUS
CLAY.CALCAREOUS, GREEN
SAND aSANDSTONE,GRAY, TCALCAREOUS ^
CLAY, GRAY, SANDY,PHOSPHATIC
LIMESTONE, GRAY -WHITE,PUAI tfV QAMfW PMOQDUI A T \C
CLAY 8 MARL, GRAY AND GREEN; SOME LIMESTONE
LIMESTONE, GRAY-WHITE,SANDY, PHOSPHATIC
LIMESTONE, GRAY 8 TAN,SLIGHTLY PHOSPHATIC
ia».yy-*.'<t;.smoB
i8^ |i. -".I-
$&iV»i Y1 ? '. .' 1 V. *.«: -. '. fri.V.L'^iL-f.'l.-.».:!.-»: l.,v..y .. iv.1 .
Y^ i. :. .!. .. i.. .
.r:;: -if» -..!. v r.
^-n--^q
m \:'i.' .-I.. TI-....-.I:...i... .''".'!.*
» L. ; l.-,-I.
JTpT* if «.r' . ! .'i.-.-.i.rr%. !. l.-.VIj.'. \" J.1,1 .1
. .l.v.i;. vii
i * i
4"*^P±r-*f-,*.i-^^i-. -I - l_._Ui
WATER-BEARING UNITS
_ SURFICIAL ^AQUIFER
AQUIFER INUPPER PART OF
^HAWTHORNFORMATION
AQUIFER INLOWER PART OFHAWTHORNFORMATION ANDUPPER PART OFTAMPA LIMESTONE
y
Figure 3. Geologic formations, lithology, and water-bearing units underlying Cape Coral (modified from Boggess and others, 1977).
Table
1. Monthly rainfall data at th
e re
vers
e os
mosi
s and
lime-treat
ment water
plants in
Cape CoralV
[Rainfall
show
n in in
ches
; LT
-
lime-treatment pl
ant,
RO -
reve
rse
osmosis
plan
t]
oo
Month
January
Febr
uary
March
April
May
June
July
Augu
stSeptember
Octobe
rNo
vemb
erDe
cemb
er
TOTAL
1975
LT
RO
0.6
0.9
-2.
0 -
3.0
-2.
4 -
4.5
-17
.4
-4.
18.
35
-3.
6 -
1.4
-0.
3
48.5
5 -
1976
LT
RO
0.0
2.6
-0.
3 -
1.1
-4.5
-5.
4 -
5.8
-12
.65
-12
.3
-2.
9 -
3.3
-2.25
-
53.1
-
1977
LT 5.6
0.1
0.0
1.4
2.7
7.4
7.8
15.2
13.2 1.4
1.4
4.55
60.7
5
RO
_ - - - - - -16.0 9.5
0.2
2.0
3.25 -
1978
LT 3.5
5.0
4.9
2.0
7.6
-9.6
513
.95
11.7 7.2
2.5
0.75
5.7
74.4
5
RO 3.9
3.8
4.8
1.6
2.4
5.7
14.6 8.45
3.95
2.65
0.5
4.45
56.8
1979
LT 7.8
2.8
0.45
3.15
9.4
3.65
2.45
16.4
59.
850.
551.
154.4
62.1
RO 8.65
1.45
1.0
5.3
8.7
1.85
3.95
17.2
515
.95
0.55
1.85
5.55
72.0
5
1980
LT 2.25
1.75
3.7
5.3
3.6
2.5
7.05
10.2
55.
92.
853.
50.55
49.2
RO 2.0
2.2
2.7
2.3
3.35
2.05
9.15
8.3
2.1
3.05
3.9
0.45
41.55
Mean
LT 3.3
2.2
1.9
2.65
5.03
5.5
9.1
11.7 9.46
2.3
1.91
2.95
58.0
RO 4.85
2.5
2.8
3.1
4.8
3.2
9.2
12.5 7.9
1.6
2.1
3.4
57.9
5
I/ Rainfall da
ta supplied by the
City of Ca
pe Co
ral.
UJ>UJ
UJ 0)
oCO
H UJ UJu.
35
30
UJ
20
15
10
SEA LEVEL
T
9
MUNICIPAL PUMPAGE FROM THE LOWER HAWTHORN AQUIFER BY THE CITY OF CAPE CORAL
V
LOWER HAWTHORN AQUIFER (WELL 2434)
20 coz o_J
40 <
60
80
100
120
140
160
z
UJ
a.
>- _j i
o
1977 978 1979 980
Figure 4. Water levels in well 2434 that taps the lower Hawthorn aquifer and municipal pumpage from the lower Hawthorn aquifer by the City of Cape Coral.
UJ > UJ
Ul
0)
M
UJ
O
flQ o:
o ui >
o CD H-
UJ
UJ u. UJ > UJ a: UJ h-
SE
A
LE
VE
L 10 15 20
25
30
35
MU
NIC
IPA
L
PU
MP
AG
E
FR
OM
T
HE
.L
OW
ER
H
AW
TH
OR
N
AQ
UIF
ER
BY
T
HE
CIT
Y
OF
CA
PE
CO
RA
L
v IM
MS
' \*
' -'1
\n/»
lU
PP
ER
H
AW
TH
OR
N
AQ
UIF
ER
(W
EL
L
581-R
EC
OR
DE
R)
II
II
II
10
to z
o
20
J
30
40
50
g
60
70
80
O 2 _j
< H
O
1966
67
6
8
69
70
71
72
7
3
74
75
76
7
7
78
79
8
0
1981
Fig
ure
5. W
ate
r le
vels
in
w
ell
581
that
taps
the
up
per
H
awth
orn
aq
uif
er
and
munic
ipal
pu
mpa
ge
from
th
eupper
H
awth
orn
aquif
er
by
the
Cit
y
of
Cap
e C
ora
l.
Tabl
e 2. Construction da
ta for
obse
rvat
ion
wells
in Cape Co
ral
and
adjacent areas
[Aqu
ifer
designation:
WT,
surf
icia
l; UH
, Upper
Hawt
horn
; LH,
Lowe
r Ha
wtho
rn]
Local
well
No. 581
702
721
781
1058
1059
1099
1106
1107
1108
1109
1110
1111
1113
1114
1115
1116
1117
1118
1119
1120
1136
2244
2434
2435
2525
2526
2527
2528
2536
Iden
tifi
cati
on
numb
er
2635320815922.01
2636270815627.01
2641
5308
2022
3.01
2638
3408
2005
3.01
2638140820207.01
2645
1708
2022
1.01
2640
5308
1563
2.01
2640
5408
1592
6.01
2641460815923.01
2641440815826.01
2640
5508
1538
1.01
2642410815824.01
2641470815627.01
2641
2008
2022
1.01
2637
2008
1573
1.01
2639
0508
1572
8.01
2636
3308
2002
7.01
2634
3808
1563
2.01
2634
0408
1575
8.01
2633
4708
2002
6.01
2640550815727.01
2635
3208
1592
2.02
2632
4208
1572
1.01
2635260820102.01
2633
0708
1555
9.01
2631170820510.01
2645
1708
2022
1.02
2639
5508
2083
1.01
2639
0708
1592
7.01
2632
3608
1570
8.01
Aqui
fer
UH
UH
WTUH UH
UH UH
UH UH
UH UH
UHUH
UH UH
UH UH
UH UHUHUH
WT UH
LH LHLH LH
LH LH
WT
Date
drilled
(yea
r)
1965
1966
1968
1966
1964
1970 -
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1970
1975
1977
1977
1977
1977
1977
1977
1977
Well
depth
(feet)
177
108 18
279
146
163
219
228
191
?16 87
238
166
130
172
169
201
248
213
224
106 20 207
700
704
645
605
605
625 45
Dept
h ca
sed
(feet)
_ -
982 95
156
129
143
136
137 84 147 - 126
126
147
106 - 126 42 - 15 150
353
352
405
300
360
420 19
Well
diameter
(inc
hes)
8 2 4 6 4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 4
Datum
of land
surf
ace
abov
e sea
leve
l (feet)
9.58
7.45
6.23
10.0
16.
0010
.55
14.9
811
.96
14.3
715
.20
13.0
615
.79
16.7
65.
959.55
12.9
99.
026.
755.45
4.35
13.9
99.71
5.38
6.34
5.19
3.89
10.7
17.
9411
.96
5.36
Water
Lith
o-
leve
l lo
gic
recorder
log
X X
X X X X X X X X
Tabl
e 2. Construction data for
obse
rvat
ion wells
in Cape Coral
and
adjacent areas Continued
[Aqu
ifer
de
sign
atio
n:
WT,
surficial; UH
, Upper
Hawt
horn
; LH
, Lower
Hawthorn]
to
Local
well
No.
2640
2641
2642
2643
2644
2645
2646
2700
2701
2702
2703
2820
2821
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3231
3232
3233
Iden
tifi
cati
on
number
2638
1308
1552
8.01
2635
3308
1573
4.01
2632
5708
1585
7.01
2632
5308
2014
2.01
2634
4008
2022
0.01
2637430820412.01
2645370815522.02
2640
0208
2012
8.01
2638
1908
1585
8.01
2636
2108
1563
7.01
2633
5708
1575
6.02
2639
5508
2083
1.02
2631170820510.02
2638
1308
1552
8.02
2635330815734.02
2632
5708
1585
7.02
2632
5308
2014
2.02
2634
4008
2022
0.02
2637
4308
2041
2.02
2645370815522.03
2640
0208
2012
8.02
2638190815858.02
2636
2108
1563
7.02
2633
5708
1575
6.03
2639550820831.04
2631170820510.03
2633
1108
1572
8.01
2633470815729.01
2633
4508
1572
9.01
Aqui
fer
UH UH UH UH UH UH
UH
UH UH
UHUHUH UH
WT WT
WT WT
WT WT
WT WT
WT WT
WT WT
WT WT
WT WT
Date
drilled
(yea
r)
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1978
1979
1979
1979
Well
depth
(fee
t)
180
170
160
200
178
210
220
205
206
155
159
241
340 20 20 18 18 18 18 18 18 18 18 18 18 18 45 27 20
Depth
case
d (f
eet)
128
118
108
141
128
160
170
165
175
120
120
192
290 8 8 8 8 8 8 8 8 8 8 8 8 8 35 22 10
Datum
of land
Well
su
rfac
e ab
ove
diam
eter
se
a le
vel
(inc
hes)
(f
eet)
4 4 4 4 4 4 4 4 4 4 4 4 4 1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
2 2 2
7.54
8.29
5.12
6.53
6.60
5.54
20.81
6.46
13.0
47.83
5.20
7.56
3.95
7.54
8.29
5.12
6.53
6.60
5.54
20.8
16.46
13.0
47.
835.20
7.56
3.95 - - -
Water
Litho-
leve
l lo
gic
reco
rder
lo
g X X X X X X X XX
XX
XX
X X X X X X X X X X X X X X X X
Tabl
e 2. Construction data for
observation wells
in Cap
e Coral
and
adjacent areas Continued
[Aquifer designation:
WT,
surf
icia
l; UH,
Upper
Hawthorn;
LH,
Lowe
r Hawthorn]
Loca
l well
No.
3234
3235
3236
3237
3239
3240
3243
3245
3249
3250
3252
3253
3255
3256
3257
3258
3259
3260
Iden
tifi
cati
on
numb
er
2632580815927.01
2633470815827.01
2633460820025.01
2633
4708
2012
5.01
2635
3008
2002
7.01
2635310815829.01
2637
2208
2002
8.01
2641230820221.01
2639
0508
1572
6.01
2638
1008
1562
3.01
2635
1808
1562
7.01
2635
1808
1555
5.01
2634
2908
1572
4.01
2635
3308
1572
3.01
2636
2408
1572
4.01
2637
1908
1572
4.01
2634140815857.01
2634
3908
1592
6.01
Aqui
fe
r
WT WT WT WT WT
WT WT
WT WT
WT WT
WT WT
WT WT
WT WT
WT
Date
drilled
(year)
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
1979
Well
depth
(fee
t)
23 17 20 40 17 22 27 27 15 22 40 35 25 28 25 29 22 25
Depth
cased
(feet)
13 7 10 30 12 17 17 17 10 12 35 30 20 23 22 25 17 20
Well
di
amet
er
(inc
hes)
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Datum
of land
surface
above
sea
leve
l (feet)
_ - - - - - - - - - - - - - - - - -
Wate
r Li
tho-
le
vel
logic
reco
rder
lo
g
Table 3. Chloride concentrations in ground water from the upper
Well No.
581702781
10581059
10991106110711081109
11101111111311141115
11171118111911202244
26402641264226432644
26452646270027012702
270328202821
Hawthorn aquifer in
[Concentrations
1978Apr-May Nov
250 24087 90
440 420500 450450 430
75180 185200 190260 26079 75
400 400230 245980 1,125460 465280 280
89 50340 340340 370110 120390 300
200 200150 140260 280
1,100 975980 1,000
460 45050
1,05040
205
450620550
Cape Coral and adjacent areas
in milligrams per liter]
1979May
25092
440580440
_20019026088
380240
1,100 1,340260
8936027087
430
200140280
1,100 1,980
45085
980 1,50
230
420650420
Oct
235100410500445
_17519025090
380230080-245
_35037575
360
190140275025975
45090
00050
250
385725430
1980May
310-410570440
77190190260110
440170
1,100 1,-220
_-26080
380
180140290980 1,990
430-980 1,52
210
400660510
Oct
215-400560400
85175175220165
420-100480220
9532028075
355
185140280000900
40075
05060
200
650500
14
Table 4. Major ion
conc
entr
atio
ns in
gr
ound
water
from the
upper Ha
wtho
rn aquifer
inCa
pe Coral
and
adja
cent
areas
[Con
centrations
in mi
llig
rams
per
lite
r, except as no
ted]
0 & rH rH a) s 581
702
781
10
58
1059
1099
c 0 H 4-1 a <u rH rH O a M-l 0 <u 4J cfl 0
04/2
5/7
805/1
0/7
90
5/1
4/8
0
04/2
4/7
80
5/0
9/7
9
04
/27
/78
05
/08
/79
05
/13
/80
04
/27
/78
05
/08
/79
05/1
3/8
0
08/2
7/7
504/2
7/7
80
5/0
7/7
905/1
6/8
0
06/2
7/7
505/0
9/7
90
5/1
2/8
0
^-\ CN
JO H cn ^_
x cfl O H rH H C/3 43 60 59 49 44 36 37 36 29 30 32 31 38 30 33 31 - 42
^-\
0) pt< ^x c 0 J_l M
0.06
0.0
30.0
8
0.05
0.0
1
0.0
00.0
20.0
1
0.0
30.0
10
.03
0.0
10
.01
0.0
10.0
1
0.0
30.0
00
.08
/ > cfl O *s
g 3 H O rH Cfl
0 56 57 57 46 45 63 64 56 78 74 82 98 95 94 84 40 54 45
^-\ bO S x P3 § H CO C C bO cfl S 44 45 49 34 39 61 60 59 70 72 75 48 45 46 47 37 41 35
s~ \ n en ^x P3 § H 4-1 C O M 4-1 cn 3.3
3.2 4.0
2.2 2.1
5.0 4.8
5.0 6.4
5.0 6.3
3.9 5.0
4.7 4.8
2.4 1.7
1.5
^-\ cfl S3 \^s P3 § H T3 O cn 95 82 120 41 47 190
180
180
250
260
260
170
170
170
160 44 55 60
x-\ ^ _x 6 3 H CO CO Cfl
4-1 0 PL.
12 13 16 8.5 8.3
16 19 18 15 19 18 6.9 7.2
7.5 6.5
5.8
5.6
6.2
^-\ -3- o en ^
x 0) 4-1 Cfl
M-l
rH 3 en 15 14 10 21 15 81 65 70 150
120
120 13 17 15 12 12 - 18
^-\
H O ^x 0) T3 H M O rH & 0 250
250
310 87 92 440
440
410
500
580
570
440
450
440
440 72 - 77
/ x Pn ^x 0) T3
H M 0 3 rH Pn 0.8
0.9 1.2
0.7 0.8
1.6
1.5
1.7
0.9
0.8
1.0
0.7 0.8
0.9
1.0 1.4 - 1.0
^-\ <T
)o o ffi ^x 0) 4-1 Cfl C 0 43 M cfl O H PQ 240
240 280
280
210
210 200
200 209
210
210 284
290 -
CO o 0 c« o CO cfl t^ 4-1
H c H rH Cfl
X rH < 200
200
180
230
230
170
170
170
160
160
160
172
170
170
170
233
240
240
lard
nes
sas
C
aC03
g 3 H CO 0) C bO c« 6 ~»^. | D H O rH Cfl
O 320
330
350
260
280
410
410
390
490
490
520
440
430
430
410
260
310
260
0) 4-1 Cfl C 0 43 M cfl O C 0 & 130
130
170 28 46 240
240
220
330
320
360
270
260
260
240 22 68 18
Dis
solv
edso
lids
o o O CO rH 4-1 c« 0) 3 T3 H CO OJ & 58
071
787
7
431
449
1,05
01,
040
1,02
0
1,23
01,
350
1,31
0
1,02
81,
050
1,11
01,
020
393 - 426
T3 0) 4-1 Cfl
rH 3 0 rH Cfl
0
_ 643
735
427
431
997
975
938
1,20
01,
260
1,26
0
912
932
912
891
386 - 430
0) O
s~*
S °
cti
o4-1
mO
CN
3 TJ
4-1C
cfl
O 0
S Oo
-^ H
CO
M-l
O H
42
0
00)
3
CU
^-x
cn 1,1
40
1,1
70
1,4
00
735
730
1,79
01,
900
1,85
0
2,19
02,
350
2,37
5
1,60
01,
780
1,81
01,
900
650
840
850
^-\
CO 4-1
H C 3 ^x W O
*
8.3
8.1
7.6
7.8 8.0
8.1
8.1
8.0 7.8
7.5
7.8 _ 7.9
7.3 7.6
7.9
7.8
s~\ o 0 \-s cu M 3 4-> Cfl M 0) & 0 0) H 26 26 27 25 26 26 28 28 25 26 27 27 26 26 28 26 26 30
Tabl
e 4. Major ion
concentrations in
gr
ound
water from th
e upper Hawthorn aquifer
inCape Co
ral
and
adja
cent
areas Continued
[Con
cent
rati
ons
in mi
llig
rams
per
liter, except
as no
ted]
0 z iH iH 0) S
1106
1107
1108
1109
1110
c o H 4-1 O 0) iH iH O O M-t O 0) 4-> CO Q
07
/17
/75
04
/27
/78
05
/07
/79
05
/13
/80
07/2
3/7
50
4/2
6/7
80
5/0
8/7
90
5/1
3/8
0
07/1
6/7
50
4/2
6/7
80
5/0
8/7
90
5/1
3/8
0
07
/16
/75
04
/27
/78
05
/07
/79
05
/13
/80
07/1
6/7
504/2
7/7
805/0
9/7
90
5/1
2/8
0
/ N CN
j
O H CO >^x CO O H iH H CO 48 48 47 48 37 32 36 39 29 30 30 31 37 48 40 46 37 38 35 38
< x 0) Cu >^x c o M H
0.0
20
.00
0.0
70.0
1
0.0
20.0
10
.00
0.0
1
0.0
10
.00
0.0
00.0
1
0.0
20.0
10
.09
0.0
1
0.0
00.0
00
.00
0.0
2
/~\ cO u **
~s % H O rH CO U 56 52 53 46 58 55 55 51 63 57 60 53 40 40 41 39 69 74 71 63
s^*. 1? \~s I 3 H CO CU C bO CO S 44 41 46 44 41 38 40 42 53 54 54 54 34 31 35 34 64 65 61 63
s^. t-l CO \^s ei § H 4-i c o -U C
O 3.1
2.9
2.8
2.7
3.0
2.8
2.8
2.6 6.0
6.3
5.4
5.7 1.0
2.2
1.9
1.9
7.1
7.7
6.9
6.4
s~ \ CO 55 v^ cj 3 H T3 O CO 94 95 87 77 75 75 68 76 94 100 82 77 54 60 57 76 140
140
120
180
<--\
* >^x 6 3 H CO CO CO 4-» O PH 16 14 17 16 12 12 12 12 10 11 12 12 12 12 12 12 16 14 17 16
s~ *. o- O CO >
-x CU 4-> CO m rH 3 CO
36 43 40 33 18 21 17 15 15 18 14 9.3
22 26 24 24 28 32 30 24
s~\
iH U >^x CU T3 H M O rH & U 180
180
200
190
190
200
190
190
250
260
260
260 85 79 88 110
410
400
380
440
s~ *. PK >
-x CD T3 H M O 3 rH fe 1.4
1.2
1.2
1.3
1.4
1.2
1.3
1.3
1.4
1.3
1.3
1.4
1.5
1.4
1.3
1.2
1.3
1.3
1.2
1.3
S-*
i
ro O U ffi
>^x CU 4-> CO C O ,0 M CO O H CQ 289
290
280 249
240
250 262
260
260 275
280
290 229
230
230
ro O U CO U CO
CO >*.
4->
H c H iH CO ^ iH < 237
240
230
230
204
200
210
210
215
210
210
210
226
230
240
230
188
190
190
190
Har
dnes
sas
C
aC03
e 3 H CO CU c bO **N^. pa § H O rH CO 0 320
300
330
300
320
300
310
300
380
370
380
360
320
230
250
240
440
460
440
420
CU 4-> CO c o 43 M CO O c o & 87 64 95 69 110
100
100 93 170
160
170
150 98 0 11 10 260
270
250
230
Dis
solv
edso
lids
u o O oo iH 4-> CO CU 3 T3
H CO CU tf 684
641
683
645
675
591
581
586
688
691
720
698
410
417
448
482
1,1
30
949
1,0
30
1,0
20
T3 CU 4J CO iH 3 O iH CO U 621
620
632
596
558
555
545
555
650
666
647
630
420 - 443 885
885
835
946
CU o <--
Nc
uCO
o
4->
inO
CN
j3 T3
4J
a
CO0 0
0 O
o ^.
H
COM
-i O
H
,g0
§CU
3
a >
-xCO 1,0
60
1,0
80
1,1
30
1,1
40
1,1
00
995
1,0
80
1,0
60
1,2
10
1,2
15
1,3
00
1,2
70 - 725
770
850
1,6
50
1,6
30
1,6
80
1,9
50
s^*. CO 4->
H § >-x ES a
7.3
8.0
7.3
7.9 7.3
8.2
8.0
8.0
7.4
7.9 7.7
8.0 7.9 7.2
8.1
7.3
7.8 7.8
7.9
S-*
l
u o v^ cu M 3 4-> CO M CU a e CU H 26 26 26 26 27 25 26 26 26 26 26 26 26 26 26 - 26 26 26
Table 4. Major io
n concentrations in
ground water from th
e upper Hawthorn aquifer in
Cape Coral
and
adja
cent
areas Continued
[Con
cent
rati
ons
in milligrams pe
r li
ter,
except as no
ted]
o !Z i I
rH 5 !2
11
11
1113
1114
1115
1116
1117
1118
c: o H 4-1 CJ <1> iH iH O O M-l O <U 4-1 CO Q
07/2
3/7
50
4/2
7/7
80
5/0
9/7
90
5/1
2/8
0
08/2
7/7
504/2
6/7
80
5/0
7/7
905/1
6/8
0
04
/25
/78
05/1
1/7
9
04
/25
/78
05/0
9/7
90
5/1
3/8
0
04
/25
/78
04/2
4/7
805/0
9/7
9
04/2
4/7
805/0
9/7
9
/->* CN
O H CO v^^ cO CJ
H rH H CO 37 38 37 29 21 21 21 23 37 34 27 27 26 61 20 20 55 37
/*"s a) fe s»x c o »-i M
0.1
40.0
00.0
20
.01
0.0
20.0
40.0
30.0
1
0.0
10.0
0
0.1
50
.03
0.0
0
0.0
3
0.0
50.0
0
0.0
50.0
1
/ \ cd o \~s e 3 H O rH cd u 73 69 69 48 150
140
150
160 75 70 83 82 77 45 44 44 56 57
s-^ bO *7-«
v»x 6 3 H co (1) fi bo cd X
rH 50 50 51 39 110
110
120
120 66 59 45 50 44 32 27 30 44 49
/*"s M CO v»x s 3 H 4-1 C 0 »-i 4-1
CO 2.7
2.8
2.5
1.8
8.1
7.7
5.6
7.4
3.8
3.2
2.2
1.8
1.1
2.0
1.5
1.4
2.0
2.4
/-N cd S3 v-x C3 1 H T3 O CO 94 95 82 76
500
460
490
480
200
180 95 72 76 36 36 39 170
170
/- v « v-x s 3 H CO CO CO 4-1 O PM
11 10 11 8 18 16 19 18 11 12 4
.43
.92.6
12 4.4
4.4
10 12
/ \ «* o CO v»x <1> 4-1 CO M-l
.H 3 CO 19 26 21 18
240
250
230
230
110 69 15 14 13 19 33 31 68 64
/-N iH U v»x 0) T3
H-v
j-l O .H & U 23
023
024
017
0
1,0
00
980
1,1
00
1,1
00
460
340
280
260
220 95 89 89 340
360
/- v fe \~s <1> T3 H J-i O 3 rH fe
1.1
0.9
0.8
1.0
0.9
0.7
0.7
0.8
1.0
0.8
0.6
0,6
0.5
1.0
0.7
0.8
0.9
1.0
/- v m o u S3 s»x 0) 4-1 CO c: o 42 »-i CO CJ H PQ 307
300
310 169
160
160 220
220
280
270 250
200
200
210
220
m o 0 cO 0 CO cO > » 4-1
H c: H rH CO ^5 rH < 252
250
250
200
139
130
130
130
180
180
230
220
180
210
160
160
170
180
flar
dn
ess
as
CaC
03
0 ^ H CO 0) c: bO cO 3 "0 3 H O rH cO U 390
380
390
280
840
810
880
900
460
420
400
410
370
250
220
240
320
350
0) 4-1 cO c: o & M cO CJ c: o S3 140
140
130 83 700
680
740
770
280
240
170
190
190 41 59 71
150
170
Dis
solv
ed
soli
ds
u o O 00
rH 4-1 CO 0) 3 T3 H CO <u & 63
068
372
955
8
2,3
60
2,3
10
2,4
60
2,3
40
1,1
40
936
644
772
586
432
381
385
772
922
T3 0) 4-1 cO iH 3 O rH CO U 66
967
066
751
1
2,13
02,
060
2,22
02,
220
1,07
087
6 644
568
426
354
358 _ 861
0) O
/-N
c: u
cO o
4-> m
O
CN3 TJ
4->
c: co
o o e o
o -^
H
COU
-l O
H
.13
0
BV
3
c±^
CO
1,2
00
1,2
10
1,2
40
1,0
00
3,9
00
4,0
00
4,1
00
4,1
50
1,9
00
1,9
00
1,3
00
1,3
50
1,1
50
710
650
630
1,5
00
1,5
50
/-N CO 4-1
H § s»x
S3 A 7.3
8.1
7.9
8.0
7.4
7.6
7.5
7.9
8.0
7.9
7.3
8.0
8.0
8.0
8.1
7.9
8.0
7.9
/-N u o **~s 0) J-i 3 4-1 cO J-i 0) A s 0) EH 27 26 27 26 27 26 26 28 26 27 28 28 26 25 25 26 25 26
Tabl
e 4. Major io
n co
ncen
trat
ions
in
ground wat
er from the
upper Hawthorn aquifer
in
cape
Co
ral
and
adjacent areas Continued
[Concentrations
in m
illigrams
per
liter, except as
no
ted]
0 JZ5
iH iH 0) &
1119
1120
2244
2640
2641
2642
c o H 4-» O 0) iH rH O O M-l 0 0) 4-1 (0 O
04
/25
/78
05
/10
/79
05/1
4/8
0
07
/17
/75
04
/27
/78
05/0
9/7
90
5/1
2/8
0
04/2
6/7
805/1
1/7
90
5/1
4/8
0
05/1
9/7
805/1
0/7
905/1
3/8
0
05/1
8/7
805/1
1/7
90
5/1
4/8
0
05/1
8/7
80
5/1
0/7
905/1
4/8
0
^ ^ CN o H CO ^^ CO O H iH H CO 36 65 63 45 33 46 56 23 23 22 23 25 25 51 51 50 42 44 43
s-\ 0) PH ^^ a O j-i M 0
.04
0.0
20.0
1
0.0
20.0
10.0
30.0
4
0.0
30.0
40.0
1
0.0
10.0
20.0
1
0.0
10.0
60.0
1
0.0
10.0
00.0
1
^ ^ co u s_x es I H O iH CO 0 80 89 83 45 43 40 38 45 51 44 63 62 62 49 47 47 55 57 54
s-\ & s g 3 H CO 0) a DO 5 s 50 48 46 43 36 38 31 40 51 42 42 42 40 37 39 35 42 45 45
s-\ J-I CO s-x p 1 H 4-1 a o H 4-1
CO 1.8
1.3
1.3
1.3 2.6
2.3 1.3
1.9
2.0
1.8
1.5
1.9
1.8
2.0
2.2
2.2
1.4
1.8
1.8
^ ^ ctf ^f
ea 3 H T3 O CO
14
0 79 85 69 65 52 52 190
210
210 90 68 81 55 56 61 120
120
130
s-\ $4 s-x g 3 H CO CO CO 4-1 O PM
10 7.3
8.2
14 14 14 11 10 9.9
9.6
4.4
4.5
4.2
9.5
9.7
10 12 12 12
^ ^ <f o CO \^s 0) 4-1 CO M-l
iH 3 CO
47 17 12 43 44 31
49 40 42 46 40 38 14 12 8.9
32 33 30
^ ^ iH O ^^ 0) T3 H S-i O iH J3 O 340
270
260
130
110 87 80
390
430
380
200
200
180
150
140
140
260
280
290
^ ^ PH ^^ 0) "0 H S-i O 3 iH ta 0.4
0.4
0.4
1.4
1.1
1.1
1.0
1.4
1.3
1.3
0.6
0.6
0.8
0.9
1.0
1.1
0.7
0.9
0.9
/~*> CO
o u K ^^ <U 4-> CO c o 43 J-I CO O H PQ 250
260 281
290
290 220
210 230
240 240
240 230
230
CO o c_> CO U CO CO > » 4->
H C H iH CO ^ iH < 210
210
220
230
240
240
190
180
170
170
190
200
170
200
200
200
190
190
190
Har
dnes
sas
C
aC03
§ y H CO 0) a DO CO e ""g y H O iH CO O 410
420
400
290
260
260
220
280
340
280
330
330
320
280
280
260
310
330
320
0) 4-1 CO C O & J-I CO O a 0 jz; 200
210
180 61 21 21 34 99 170
110
140
130
150 80 84 64 120
140
130
Dis
solv
edso
lids
o o O oo iH 4-1 CO 0) 3 T3 H CO 0) Pd 794
865
750
530
488
457
437
833
999
958
665
587
590
513
508
509
779
740
817
T3 0) 4-1 CO iH 3 O iH CO O 828
705
691
530
492
454
393
859
922
855
584
562
535
487
476
475
679
707
721
0) o c CO 4J o 3 C1-i o o y H «4-l
H y CO Ou
CO
/-N o o IT)
CM 4J CO *^«. CO J2 Q 3 \^s
1,5
20
1,3
00
1,3
20
920
845
770
680
1,5
20
1,7
50
1,7
00
1,1
00
1,0
40
1,1
00
870
890
930
1,3
00
1,3
90
1,3
00
s-\ CO 4-1
H s 3 ^^ R a 7.6
7.9 7.9
7.4
8.0
7.8
8.2
8.2
7.9
7.9
7.8
7.0
7.8 7.8
8.2 _
7.8 7.9
^> o o ^^ 0) M 3 4-1 (0 M 0) & 0 0) H 25 26 27 26 26 26 26 24 26 27 26 27 27 26 28 28 25 27
00
Table 4. Major ion
concentrations in ground water from th
e upper
Hawthorn aquifer
inCape Coral
and
adjacent areas Continued
[Con
cent
rati
ons
in milligrams pe
r liter, except as
no
ted]
0 Jz; .H CU
2643
2644
2645
2646
2700
2701
2702
c 0 4-1 0 CU r^ o o , 0 CU
4-
1 cfl
0
05/1
6/7
80
5/1
0/7
90
5/1
4/8
0
05
/17
/78
05
/10
/79
05
/14
/80
05
/23
/78
05/0
8/7
90
5/1
6/8
0
05
/22
/78
05
/07
/79
09
/08
/78
05/0
8/7
905/1
6/8
0
09
/06
/78
05
/09
/79
05
/13
/80
09
/01
/78
05
/09
/79
05
/13
/80
CM O H
CO s"*' cfl 0
H CO 27 29 30 27 28 30 31 30 32 43 39 17 17 18 21 22 23 33 34 33
^ cu ^^ c 0 IH 0.0
10.0
50
.03
0.0
10.1
10.0
2
0.0
10
.00
0.0
1
0.0
10.0
8
0.0
10.0
10.0
4
0.0
00
.02
0.0
1
0.0
30
.00
0.0
1
^^ cfl O g § H
O cfl 88 - 97 82 79 90 70 69 62 50 38 130
120
130 41 37 34 66 57 55
^^ S x_x
g 4 H CO CU
bO cfl & 97 -10
0 95 100
110 58 54 55 36 35 100
100
110 25 27 26 45 44 41
/ N M
CO e H 4-1 C
O 4-1
CO 9.5 - 7.2
11 9.9
10
6.3
6.4
6.5
3.0
2.9
24 26 25
1.3
1.3
1.2
3.4
3.4
3.4
^^. cfl
\lt/ e H 0
CO 550 - 540
550
520
520
210
210
210 70 37
480
450
470 37 34 45 120 96 120
£ v_x 8 H CO CO cfl 4-1 O PM
24 - 24 24 26 24 15 15 14 11 10 20 21 19 4.1
4 4.2
10 8.5
8.9
o CO CU 4-1 cfl CO 190
200
190
190
210
180 71 66 59 23 17
270
260
250 13 12 11 68 63 60
C_J
^ CU H M
O 5
1,1
00
1,1
00
980
980
980
990
460
450
430 85
1,1
00
980
980 52 50 52
230
230
210
/ N
fjL
|^
CU H 0 .H 0.7
0.8
0.9
0.7
0.9
1.0
0.9
1.1
1.1
1.4
1.6
0.5
0.5
0.6
1.1
1.2
1.3
1.0
1.0
1.1
m o ffi CU 4-1 cfl c 0 & M
cfl
O H
PQ 220
220 240
240 240
250 220
230
170
170 240
230 240
250
ro 0 o cfl 10 cfl 4-1
H C H cfl < 180
180
180
200
200
200
200
210
200
180
190
140
140
140
200
190
200
200
210
200
Har
dnes
sas
C
aC0
3
& H CO CU C bC cfl ^^^ g H
O cfl 630 - 660
610
620
690
420
400
390
280
240
760
740
810
210
210
190
350
330
310
cu 4-3 Cfl
O ,0 M cd CJ C O
450 - 480
410
420
490
220
200
190 96 54 620
600
670 10 16 0
160
120
110
Dis
solv
edso
lid
s
o O OO iH *J
cfl <1) 3 H
CO CU
2,4
00
2,2
90
2,4
60
2,3
40
2,2
40
2,3
20
1,1
60
1,1
10
1,0
80
538
409
2,3
30
2,2
70
2,2
40
303
309
302
702
693
cu 4-1 Cfl
iH O cfl
2,1
90
-2
,08
0
2,0
80
2,0
70
2,0
80
1,0
40
1,0
20
990
506
379
2,2
30
2,0
60
2,0
90
314
302 695
660
653
cu C
CJ
Cfl
o4-1
mO
CM
Td
4-1
C
cfli
d o H
CO
<4-(
O
0
&
CU
3
CO
3,8
60
4,3
00
3,9
00
3,6
90
3,8
00
3,8
00
1,9
30
1,9
70
1,9
00
842
670
3,8
10
4,0
00
4,0
00 580
580
1,1
70
1,1
60
1,3
00
CO 4-1
H C 3
ex _ 7.7
7.8 7.8
7.7 7.2 7.9
7.3 7.4
7.1
8.0
7.9
8.2 - 8.0
8.2
Q_J
o
CU M 4-1 cfl M CU ex e cu H
_ 26 27 26 28 26 26 26 30 24 26 28 28 26 26 28 - 26 26
Table 4. Major ion
concentrations in gr
ound
water fr
om th
e upper Ha
wtho
rn aquifer
inCa
pe Co
ral
and
adjacent areas Continued
[Concentrations
in milligrams per
lite
r, except as noted]
. o iH iH <U S
2703
2820
2821
c o H 4-J O Cl) iH iH 0 U M
-4 O Cl)
4-J CO Q
08
/31
/78
05
/10
/79
05/1
4/8
0
09/1
9/7
80
5/0
8/7
90
5/1
6/8
0
10
/26
/78
05
/08
/79
05/1
6/8
0
X-N C
NO H C/
>x_
x CO O H iH H W 39 34 37 19 18 20 25 24 24
X-N <U Cn C O M
0.0
00.0
00.0
1
0.0
00
.00
0.0
3
0.0
00.0
00.0
2
X-N CO \^s g £j H O iH CO 62 67 62 83 84 95 66 63 72
x s bO s_/
gj £j H CO Cl) C bO cO 46 46 44 64 66 74 74 68 76
X~N J_
|
C/>
v^ gj £j H 4-1 c o J_l
4-J
C/>
2.6
1.8
1.8
7.8 7.9
9.0 6.8
7.1
8.6
x-s CO v^ 3 H 13 O c/> 190
200
200
210
250
270
250
240
260
X-N |S/»
v^ gj £j H CO CO CO 4-1 O P-.
11 12 11 21 23 22 20 20 18
x~
\-3
-
O C/>
s_/
Cl)
4-1 CO M
-4 iH jj W 69 74 71 19 28 25 210
220
200
x \ iH Q_
Js_
/
Cl)
T3 H j_i 0 iH _rt
0 380
420
400
560
650
660
480
420
510
x \
pt|
s_/ (U H M O iH fa 0
.80.7
0.8
1.3
1.4
1.4
1.8
1.8
1.8
x~
\ en o u pr]
x.x (U 4-1 cO C 0 J_l cO U H pa 220
230 180
180 200
190 "
en o u cO CO cO ^> 4-1
H C H iH CO >J,
i |
<! 180
190
180
150
150
140
160
160
150
Har
dnes
sas
Ca
CO-j
g 3 H CO Cl) C bO Q >^^ g 3 H U iH CO
350
360
340
480
490
550
480
450
500
Cl)
4-1 cO C 0 J_l cO U c o 53 170
170
160
330
340
410
310
290
350
Dis
solv
edso
lids
u o O 00 iH 4-J CO Cl)
3 -a H CO (U prf 991
1,0
20
1,1
20
1,2
50
1,4
80
1,3
80
1,2
50
1,2
50
1,3
10
-a d) 4-1 CO i_| 3 U iH cO 0 90
997
393
6
1,0
70
1,2
20
1,2
60
1,2
30 -
1,2
60
Ox
-vC
CJ
cO o
4-J
LO
O
CN
3 *"O
4J
C
cO0 U
g o
O "
»«,
H
COM-
4 O
H ,
CU
3
d)
3PJ
^-X
C/5
1,7
10
1,7
50
1,8
00
2,2
60
2,5
00
2,5
75
2,0
50
2,1
70
2,3
00
x \ CO 4-1
H fi
s_/
K O,
7.9
7.6
8.1 7.3 7.6 ~"
X"S U o s_x <u J_l
3 4-1 CO J_l
d) Qj
Q d) H 25 25 26 26 26 28 28 28
Table 5. Chloride concentrations and specific conductance in groundwater from thefor May 1980
Local well No.
11362536320332053206
32073208321432153231
32323233323432353236
32373239324032433245
32493250325232533255
32563257325832593260
surficial aquifer in Cape Coral
Specific conductance (umhos/cm at 25 °C)
57557,000
4853,200
14,300
4,9009,100
6001,170
22,500
1,0202,250
25,000920
1,650
8,5001,850
5702,750
710
660575
16,60044,000
900
735585700970815
and adjacent areas
Chloride (mg/L)
3020,500
40740
4,040
1,2601,140
60250
8,100
145400
9,60075
260
2,50028045
72510
1015
5,10021,200
80
454015
12575
21
Tabl
e 6. Major ion
concentrations in ground water from th
e lowe
r Hawthorn aquifer
inCa
pe Co
ral
and
adjacent areas
[Con
centrations
in milligrams per
liter, except as
noted]
£ rH rH £
2434
2525
2526
2527
2528
a o *l"l o rH rH 0 o <4H 0 CU 4-1 Q
06
/16
/78
06/2
2/7
8
06
/22
/78
06
/22/7
8
06
/09
/78
x-x CN
O tl-_
l *P
1
CO N""' CO U H rH I
*n
CO 21 26 15 17 16
^^ cu N_l
t/
f- 0 M
0.0
0
0.0
0
0.0
0
0.0
0
0.0
1
X-N CO 0 e H O rH CO O 56 70 74 170 99
X-N bO 5T
2U v f g s H CO rj bo 2 69 67 81 160
100
X-N CO N_>,
g rj H 4-1 a 0 4-1
CO 8.4
9.3
13 27 20
^.^ CO J2; I H 0 CO 220
230
300
920
500
X-N
V X g 3 H CO CO CO 4-1 0 18 19 15 30 22
X-N O CO 0) 4-
J CO rH CO
130
180
150
310
240
X-N rH \_
X CU H M 0 rH " 400
420
580
1,9
00
920
X-N
[V,
\_
X cu H J-i O 3 rH 2.2
1.7
1.7 1.2
1.2
X-N CO
O i-r|
V_
f CU 4-1 CO a o ,0 j-i CO O H PQ 240
190
170
150
170
CO O ctf QJ CO cd ^» 4-1
H a H rH CO s^ rH 200
160
140
120
140
Har
dnes
sas
C
aC03
e 3 H CO 0) C bO 2 3 E H O rH CO 430
460
530
1,1
00
680
0) 4-J CO G O J-i C0 0 C o !2;
240
310
390
990
540
Dis
solv
edso
lids
u o O co rH 4-1 CO cu 3 I"O H CO 0) P4
1,2
00
1,1
90
1,4
20
4,2
30
2,2
20
0) 4-J CO rH O rH CO °
1,0
40
1,1
20
1,3
10
3,6
10
2,0
00
0) O
x-N
cO
o *"*
m
O
CM3 12
*J
S *
o « e o
o -«^
. H
CO
*w
oo
'acu
3
eu o
-CO 1,9
00
2,0
60
2,5
30
6,5
10
3,6
50
X-N CO 4-
1 H s 3V
X S3 a
7.5
7.6
7.8
7.5 7.4
X-N u o v x 0) M 4-J
CO J-I 0) cu e 0) H 26 27 28 27 28
ro
ro
10
U>
ui _i < uj 03 (T
O Ul
>
O
03 UJ
UJ
LU > LU -J (T
LJ
SE
A
LE
VE
L 5
10 20 25
30 35
'S
UR
FIC
IAL
A
QU
IFE
R
(WE
LL
3212)
UP
PE
R
HA
WTH
OR
N
AQ
UIF
ER
(WE
LL
702)
WE
LL
7
02
R
EP
LA
CE
DW
ITH
W
EL
L
27
02
-RE
CO
RD
ER
1966
67
68
6
9
70
71
72
73
74
75
76
77
78
79
80
Fig
ure
6. W
ate
r le
vels
in
w
ell
s 70
2 an
d
2702
th
at
tap
th
e
upper
H
awth
orn
aq
uif
er
and
well
32
12
that
tap
s th
e su
rfic
ial
aq
uif
er.
to
LU\-
>
UJ
UJ
Id _
J
UJ
O>
-I
UJ
UJ
-Iff
i
UJ
O m
20 15 10
SE
A
LE
VE
L
i i
ri
i \
r
UP
PE
R
HA
WT
HO
RN
A
QU
IFE
R
(WE
LL
1059)
Xj
'SU
RF
ICIA
L
AQ
UIF
ER
(W
EL
L
721)
I I
II
I I
I
1968
69
70
71
72
73
74
75
76
77
78
79
80
Figure 7. Water levels in we
ll 10
59 th
at taps the
uppe
r Hawthorn aquifer
and
well
72
1th
at ta
ps the
surficial
aqui
fer.
l\J
_J UJ
UJ _l 2
SE
A</>
LE
VE
L
o UJ
00 oc
0
10U
J o CD H
UJ
UJ S.
20
z _T UJ
UJ K
30U
J
An
i
_-/N
:/%
1
.^ /\\_
- s~
^~=
SU
RF
ICIA
L
AQ
UIF
ER
(WE
LL
3203)
/U:
/
v\i
\^U
PP
ER
HA
WT
HO
RN
AQ
UIF
ER
\
/ Y
(WE
LL
2
64
0)
1
y
1
10
SE
A
LE
VE
L 10 20
30
40
SU
RF
ICIA
L
AQ
UIF
ER
(W
EL
L
3213)
UP
PE
R H
AW
THO
RN
AQ
UIF
ER
(W
EL
L
27
03
-RE
CO
RD
ER
)
1978
1979
I960
1978
1979
I960
Fig
ure
8.
Wate
r le
vels
in
w
ell
26
40 th
at
tap
s th
e
up
per
H
awth
orn
aquif
er
and
wel
l 32
03
that
tap
s th
e surf
icia
l aquif
er.
Fig
ure
9. W
ate
r le
vels
in
w
ell
2703
th
at
taps
the
upper
H
awth
orn
aquif
er
and
well
32
13
that
tap
s th
e surf
icia
l aq
uif
er.
(E
ro <UJ m
13
10 5
SE
A
LE
VE
L
1 1
UP
PE
R
HA
WT
HO
RN
AQ
UIF
ER
_
/
(WE
LL
2
64
3)
__
*~
^^~
~~
SU
RF
ICIA
L
AQ
UIF
ER
""
(W
EL
L
3206)
1 1
13
10 5
SE
A
LE
VE
L *
1 1
UP
PE
R
HA
WT
HO
RN
A
QU
IFE
R_
/
(WE
LL
2
64
4)
_
^2
^^~
^/
SU
RF
ICIA
L
AQ
UIF
ER
~
(W
EL
L
32
07
)
1 1
1978
1979
1980
1978
1979
1980
Figure 10. Water le
vels
in we
ll 26
43 th
at taps
the
upper
Hawthorn aq
uife
r an
d well 32
06 th
at
taps
the
surficial
aqui
fer.
Figu
re 11. Water le
vels
in well 26
44 that taps
the
upper
Hawthorn aq
uife
r an
d well 32
07 that
taps
th
e surficial
aquifer.
10
UJ > UJ o UJ
00 OC
O UJ
>
O
00
ro
UJV
J
QJ u_ UJ
>
UJ _l
oc UJ
SE
A
LE
VE
L
10 20 30
40
SU
RF
ICIA
L
AQ
UIF
ER
(W
EL
L
3204)
UP
PE
R
HA
WT
HO
RN
A
QU
IFE
R'
(WE
LL
2
64
1)
10
SE
A
LE
VE
L
10 20
30
40
V SU
RF
ICIA
L
AQ
UIF
ER
(W
EL
L
3211)
A-A
UP
PE
R
HA
WT
HO
RN
A
QU
IFE
R
(WE
LL
2701-R
EC
OR
DE
R)
1978
1979
I960
1978
1979
I960
Figure 12. Water le
vels
in
well 2641 that ta
ps
the
upper
Hawthorn aq
uife
r an
d we
ll 32
04 that
taps the
surficial
aqui
fer.
Figu
re 13. Water le
vels
in
wel
l 27
01 that taps
the
uppe
r Hawthorn aquifer
and
well
3211 th
at
taps
the
surf
icia
l aquifer.
UJ
0) QC
O U
J O
CO
N>
r-00
U
JU
J
UJ > UJ _l GC
U
J
lo
SE
A
LE
VE
L 10 15 20 25 30
SU
RF
ICIA
L
AQ
UIF
ER
(W
EL
L 2
536)
N.
UP
PE
R
HA
WT
HO
RN
AQ
UIF
ER
(W
EL
L
22
44
)
10 5
SE
A
LE
VE
L 10 15 20 25 30
SU
RF
ICIA
L
AQ
UIF
ER
/
(WE
LL
3
20
5)
UP
PE
R
HA
WT
HO
RN
A
QU
IFE
R
(WE
LL
2642)
1I
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Table 7. Lithologic logs of wells in Cape Coral and adjacent areas
Well 2434
Depth (feet) Description
0-15
15-25 25-30 30-40 40-45 45-80 80-90 90-105 105-135 135-150 150-165 165-190 190-205 205-225 225-230 230-255 255-270 270-275 275-280 280-300 300-315 315-330 330-335 335-340 340-355 355-370 370-400 400-415 415-420 420-515 515-570 570-605 605-675 675-700
Sand, fine to medium, tan, slightly phosphatic; somelimestone.
Same, shell fragments.Clay, gray, sandy; some limestone and shell fragments. Clay, gray; some limestone.Sandstone, dark gray, clayey; some limestone. Clay, green.Clay, green; some shell.Clay, gray-green, sandy; some phosphate gravel and limestone, Limestone, gray-white, marly, phosphatic.
sandy, marly, phosphatic.phosphatic.marly, phosphatic.
Limestone, gray-white. Limestone, gray-white. Limes tone, gray-whi te Same, more marl. Limestone, gray-white. Limestone, gray-white
marly, and phosphatic.marly; some phosphate.
Limestone, gray-white, phosphatic, and marl. Same, less phosphate.Marl, gray-white, phosphatic; some limestone. Limestone, gray-white, marly, phosphatic. Marl, gray-white, phosphatic; some limestone. Clay, gray-green, phosphatic; some limestone. Limestone, gray-white, marly, phosphatic. Marl, gray-white phosphatic; some limestone. Limestone, gray-white, marly. Marl, gray-white, phosphatic; Limestone, gray-white, marly. Same, less marl. Limestone, gray-white, marly. Same, slightly crystalline; some phosphate. Limestone, gray-white, marly, slightly crystalline. Limestone, gray-white, crystalline, marly. Limestone, gray-white, marly. Limestone, gray-white, crystalline, marly. Limestone, gray-white, marly, crystalline.
phosphatic. some limestone, phosphatic.
31
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
_________________________Well 2525________________________
Depth (feet)__________________________Description_________________________
0-5 Sand, fine, brown.5-10 Sand, fine, tan; shell.10-27 Shell fragments, some sand.27-30 Shell, limestone fragments.30-40 Limestone, gray and tan, sandy; shell fragments.40-55 Clay, gray, sandy.55-135 Clay, green.
135-140 Clay, gray and white, phosphatic.140-145 Clay, white.145-155 Clay, gray and white, sandy, phosphatic.155-165 Clay, gray, phosphate gravel.165-185 Clay, gray, phosphatic.185-210 Clay, gray, sandy, phosphatic.210-240 Sand, fine, gray, phosphatic, clayey.240-265 Marl, gray, sandy, phosphatic.265-290 Limestone, gray, phosphatic, marly.290-340 Limestone, gray-white, sandy, phosphatic.340-360 Limestone, gray-white, sandy, phosphatic, marly.360-417 Limestone, gray-white, slightly phosphatic.417-420 Limestone, dark gray and tan, hard, phosphatic.420-430 Marl, green.430-440 Marl, gray-white, phosphatic.440-445 Marl, green, phosphatic.445-485 Limestone, gray and tan, hard.485-505 Limestone, gray, phosphatic.505-525 Marl, gray-white, phosphatic.525-545 Limestone, tan, phosphatic.545-555 Marl, gray, phosphatic.555-625 Limestone, tan, sugary.625-645 Limestone, light gray, slightly phosphatic.
32
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
________________________Well 2526________________________
Depth (feet)___________________________Description___________________________
5-10 Limestone, creamy tan, sandy, marly; some shell fragments.10-15 Sand, fine, tan, marly; some limestone and shell fragments.15-20 Sand, fine, dark tan, marly; some fill and shell fragments.20-30 Limestone, creamy tan, sandy.30-35 Sandstone, creamy tan, marly; some limestone.35-50 Clay, gray, sandy; some limestone.50-55 Clay, green, sandy; some limestone and shell fragments.55-65 Clay, gray, sandy; some shell fragments.65-80 Clay, gray, sandy; some limestone.80-125 Clay, green, sandy.125-130 Sandstone, gray, marly, phosphatic; some limestone.130-145 Sand, fine, dark gray, marly, phosphatic; some limestone.145-160 Limestone, gray-white, sandy, marly, phosphatic.160-170 Sandstone, gray-white, phosphatic; some limestone.170-185 Sandstone, gray-white, phosphatic, dolomitic; some limestone.185-200 Limestone, gray-white, sandy, phosphatic.200-205 Sandstone, gray-white, phosphatic; some limestone.205-225 Limestone, white, sandy, phosphatic.225-250 Limestone, gray-white/ sandy, marly, phosphatic.250-265 Limestone, gray-white, sandy, very marly, phosphatic.265-275 Marl, tan; some limestone.275-295 Limestone, gray, marly, sandy, phosphatic.295-305 Limestone, white to gray, very marly, phosphatic.305-310 Sand, fine to medium tan, very marly; some limestone.310-330 Clay, white to gray, phosphatic.330-340 Limestone, gray-white, marly, phosphatic; some shell fragments.340-375 Limestone, gray-white, very marly, phosphatic.375-405 Limestone, gray-white, sandy, phosphatic.405-415 Limestone, gray-white, marly, phosphatic.415-435 Marl, white to gray, phosphatic; some limestone.435-445 Limestone, gray-white, marly, phosphatic.445-485 Marl, gray-white, phosphatic; some limestone.485-495 Limestone, gray-white, marly, very phosphatic.495-505 Limestone, gray-white, marly, phosphatic.505-535 Limestone, white to gray, marly.535-545 Marl, white to gray, slightly phosphatic, some limestone.545-555 Limestone, tan, marly.555-595 Marl, white to gray; some limestone.595-605 Limestone, tan-white, marly, slightly phosphatic.
33
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
Depth (feet)
Well 2527
Description
0-20 Sand, fine to medium, tan; shell fragments.20-55 Limestone, creamy tan, sandy; some crystalline, gray, lime
stone; shell fragments.55-65 Sandstone, creamy tan and limestone, gray, crystalline.65-70 Same as above; some shell fragments.70-85 Marl, gray, sandy, slightly phosphatic; some limestone.85-100 Sand, fine to medium, dark green, very marly, phosphatic;
some shell fragments.100-120 Clay, gray-green, sandy, phosphatic; some limestone.120-160 Clay, green, sandy.160-170 Sand, medium, green, very marly, phosphatic.170-180 Limestone, green, marly, phosphatic.180-195 Clay, green, slightly phosphatic.195-205 Clay, green, sandy, very phosphatic; some limestone.205-215 Limestone, gray-white, slightly marly.215-235 Limestone, gray-white, marly, phosphatic.235-245 Marl, gray-white, phosphatic; some limestone.245-275 Limestone, gray-white, marly, phosphatic.275-285 Marl, gray-white, phosphatic; some limestone.285-325 Limestone, gray-white, marly, phosphatic.325-375 Marl, gray-white, phosphatic; some limestone.375-385 Marl, gray-white, phosphatic; some limestone, and dolomite,385-405 Limestone, gray-white, crystalline.405-425 Marl, gray-white, phosphatic; some limestone.425-435 Limestone, gray-white, slightly marly.435-455 Limestone, white to gray, slightly crystalline.455-505 Limestone, gray-white, slightly phosphatic, crystalline.505-525 No sample.525-555 Limestone, gray-white, slightly phosphatic and crystalline,555-565 Limestone, white to tan, slightly crystalline.565-605 Limestone, gray-white and tan, crystalline.
34
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
Well 2528
Depth (feet) Description
0-10
10-2020-4040-5050-6565-8585-105
105-125125-145145-165165-225225-245245-260260-275
275-295 295-305 305-345
345-405 405-415 415-435 435-465 465-625
Shell, creamy tan, sandy.Sandstone, creamy tan; shell fragments.Marl, creamy tan, sandy; shell fragments.Clay, gray; some shell fragments.Sand, medium, dark brown, very clayey; some shell fragments,Clay, green, sandy; some shell.Same, phosphatic.Sand, medium to coarse, gray-green, marly; some shell.Same, without shell.Clay, green, sandy.Clay, dark gray, sandy; some shell fragments.Sand, medium to coarse, dark gray, very marly.Clay, gray, sandy; some shell fragments.Sand, medium to coarse, gray, marly, phosphatic; some shell
fragments.Same as above; some limestone.Clay, green, sandy; some shell fragments and limestone. Sand, medium to coarse, dark gray, marly, phosphatic; somelimestone and shell fragments.
Limestone, gray-white, marly, phosphatic. Same, some crystalline limestone. Limestone, gray-white, very marly, phosphatic. Limestone, gray-white, phosphatic, slightly crystalline. No samples available.
35
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
____________________Well 2536____________________
Depth (feet)______________________Description________________
0-10 Sand, fine to medium dark brown.10-19 Sand, medium to coarse, light brown.19-20 Sand and shell, phosphatic, clayey.20-30 Clay, gray.30-45 Clay, green, sandy.
36
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
Well 2640
Depth (feet)_____________________Description_________________________________
0-10 Sand, tan, medium grained; some shell fragments and white clay,10-30 Limestone, creamy tan, sandy, marly and shell fragments.30-40 Clay, green; some shell fragments.40-70 Clay, green.70-80 Clay, green; some shell fragments.80-90 Clay, green, sandy; some shell fragments.90-100 Sand, fine, gray, clayey; some shell.
100-110 Sand, fine, gray, very clayey; phosphate gravel.110-120 Sand, fine, dark gray, clayey, phosphatic.120-130 Limestone, gray-white, sandy, phosphatic.130-140 Limestone, gray-white, phosphatic.140-180 Limestone, gray-white, marly, phosphatic.
37
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2641______________________
Depth (feet)________________________Description_________________
0-10 Sand, tan; some marl; shell fragments.10-20 Limestone creamy tan, sandy; some shell fragments.20-30 Sand, tan, marly; some limestone; phosphate.30-40 Clay, green; some shell fragments.40-80 Clay, green.80-90 Clay, green, sandy; some shell fragments.90-100 Sand, fine, dark gray, clayey, phosphatic.100-120 Limestone, gray-white, sandy, phosphatic.120-140 Limestone, gray-white, marly; sand, phosphatic.140-170 Limestone, gray-white, very marly, sandy, phosphatic,
38
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2642_________________________
Depth (feet)________________________Description______________________
0-10 Sand, fine to medium, tan; some limestone.10-30 Sand, fine to medium, tan, clayey; some limestone.30-40 Clay, gray, sandy; some limestone, shell fragments.40-60 Clay, gray, very sandy, phosphatic.60-70 Clay, green, sandy; some limestone; shell fragments.70-80 Clay, green, sandy.80-90 Clay, gray, sandy.90-100 Clay, dark gray, sandy, very phosphatic.100-120 Limestone, gray-white, sandy, phosphatic.120-140 Limestone, gray-white, marly, sandy, phosphatic.140-160 Limestone, gray-white, very marly, sandy, phosphatic.
39
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
Well 2643
Depth (feet) Description
0-10 Sand, fine to medium, tan.10-30 Sand, fine to medium, tan; some limestone; shell fragments.30-40 Sand, fine to medium, tan, clayey, phosphatic; some limestone.40-50 Clay, gray, sandy; some shell fragments.50-60 Clay, green, sandy; some shell.60-80 Clay, green.80-90 Clay, green, sandy.90-110 Clay, green.110-120 Clay, gray, sandy, phosphatic.120-130 Clay, dark gray, sandy, phosphatic.130-140 Limestone, gray-white, marly, sandy, phosphatic.140-160 Limestone, gray-white, sandy, phosphatic.160-190 Limestone, gray-white, sandy, marly, phosphatic.190-200 Limestone, gray-white, sandy, very marly, phosphatic.
40
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
____________________________________Well 2644_________________________
Depth (feet)______________________________Description__________________________
0-10 Sand, fine to medium, tan.10-30 Sand, fine to medium, tan; some limestone; shell fragments.30-40 Sand, fine to medium, tan, marly; some limestone; shell
fragments. 40-50 Sand, fine to medium, tan, very marly; some limestone and
shell fragments.50-60 Clay, gray, sandy; some shell fragments.60-70 Clay, gray, some shell fragments.70-100 Clay, green; some shell.100-120 Clay, green.120-140 Sand, dark gray, clayey; some limestone, phosphate.140-160 Limestone, gray-white, sandy, phosphatic.160-178 Limestone, gray-white, marly, sandy, phosphatic.
41
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2645________________________
Depth (feet)____________________Description__________________________
0-10 Sand, fine to medium, tan, clayey, phosphatic.10-20 Sand, fine to medium, tan, clayey, some shell fragments; fill,20-50 Limestone, creamy tan, sandy, marly; some shell fragments.50-70 Clay, gray, sandy; some limestone.70-90 Clay, green; some shell fragments.90-130 Clay, green.130-150 Sand, dark gray, clayey, phosphatic; some limestone.150-170 Limestone, gray-white, sandy, phosphatic.170-190 Limestone, gray-white, marly, sandy, phosphatic.190-210 Limestone, gray-white, very marly, sandy, phosphatic.
42
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2646__________________________
Depth (feet)_______________________Description__________________________
0-10 Limestone, creamy tan; some shell.10-20 Limestone, creamy tan, marly, sandy.20-40 Clay, gray; some limestone and shell fragments.40-50 Clay, green, sandy; some shell.50-90 Clay, green.90-100 Clay, green, sandy; some shell fragments.100-140 Sand, dark gray, clayey, phosphatic; some limestone.140-160 Limestone, gray-white, sandy, phosphatic.160-180 Limestone, gray-white, sandy, marly, phosphatic.180-200 Limestone, gray-white, marly; sand, very fine, phosphatic,200-220 Limestone, gray-white, marly, sandy, phosphatic.
43
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2700____________________________
Depth (feet)_____________________Description________________
0-10 Sand, fine, tan and shell fragments.10-20 Limestone, tan, sandy and shell fragments.20-30 Limestone, tan, marly, phosphatic and shell fragments.30-70 Clay, green.70-90 Clay, green and shell fragments.90-100 Clay, green, sandy.100-110 Sand, fine, gray.110-120 Sand, fine, gray, clayey, phosphatic; shell fragments.120-130 Sandstone, gray, phosphatic.130-140 Sand, dark gray, fine, phosphatic.140-150 Sand, gray, fine, clayey, phosphatic.150-160 Limestone, gray-white, sandy, phosphatic.160-170 Limestone, gray, sandy, marly, phosphatic.170-180 Limestone, gray-white, sandy, phosphatic.180-205 Limestone, gray-white, sandy, phosphatic; some shell fragments
44
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2701________________________
Depth (feet)______________________Description_________________
0-10 Limestone, iron stained, sandy and shell fragments.10-20 Sand, fine, tan and shell fragments.20-30 Sand, medium, tan and shell fragments.30-40 Limestone, gray; sand, medium, tan; shell fragments.40-50 Limestone, gray and shell fragments.50-60 Sand, fine, gray, clayey; shell fragments; some limestone,60-70 Clay; sandstone, gray; shell fragments.70-80 Clay, green, slightly sandy.80-100 Clay, green.100-110 Sandstone, gray; shell fragments.110-120 Sandstone, gray, clayey, phosphatic; shell fragments.120-130 Sand, fine, dark gray, clayey, phosphatic.130-140 Marl, gray-white, sandy, phosphatic.140-150 Limestone, gray-white, sandy, phosphatic.150-170 Limestone, gray-white, phosphatic.170-190 Limestone, gray-white, marly, phosphatic.190-206 Limestone, gray-white, phosphatic.
45
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2702_________________________
Depth (feet)___________________________Description__________________
0-10 Sand, fine to medium, tan.10-20 Sand, fine to medium, tan and shell fragments20-30 Clay, gray; shell fragments.30-50 Limestone, gray, marly; shell fragments.50-60 Limestone, gray; green clay; shell fragments.60-70 Clay, green.70-80 Clay, green; sandstone, gray; shell fragments80-95 Sand, dark gray, very phosphatic, clayey.95-155 Limestone, gray-white, phosphatic.
46
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
Well 2703
Depth (feet)__________________________Description_____________________
0-10 Sand, fine to medium, tan.10-30 Limestone, tan, sandy.30-50 Limestone, gray, sandy, marly.50-70 Sand, very fine and green clay.70-90 Clay, green, sandy.90-100 Clay, gray, sandy; slightly phosphatic.100-110 Sand, dark gray, clayey, very phosphatic.110-140 Limestone, gray-white, phosphatic.140-150 Limestone, gray-white, clayey, phosphatic.150-159 Limestone, gray-white, phosphatic; shell fragments
47
Table 7. Lithologic logs of wells in Cape Coral and adjacent areas Continued
__________________________Well 2820______________________
Depth (feet)_______________________Description________________________
0-10 Sand, fine, tan.10-50 Sand, fine, tan and shell fragments.50-60 Sandstone, tan and shell fragments.60-70 Sandstone, tan; limestone, gray; shell fragments.70-90 Limestone, gray, marly, sandy and green clay.90-160 Clay, green, sandy.160-170 Clay, green, sandy, slightly phosphatic170-190 Sand, very fine, green, slightly phosphatic.190-200 Sand, very fine, green, phosphatic; some gray clay.200-210 Sand, gray, slightly phosphatic, some limestone.210-220 Limestone, gray-white, marly, slightly phosphatic; shell
fragments.220-230 Limestone, gray, marly, phosphatic.230-241 Limestone, gray-white, marly, phosphatic.
48