AN INDEX OF GEOPHYSICAL WELL LOGGING IN VIRGINIA BY THE … · 2010-12-12 · AN INDEX OF...
Transcript of AN INDEX OF GEOPHYSICAL WELL LOGGING IN VIRGINIA BY THE … · 2010-12-12 · AN INDEX OF...
AN INDEX OF GEOPHYSICAL WELL LOGGING IN VIRGINIA
BY THE U.S. GEOLOGICAL SURVEY
By
M. Patrick Mulheren, J. D. Larson, and H. T. Hopkins
OPEN-PILE REPORT 82-432
U.S. GEOLOGICAL SURVEY
Prepared in cooperation with the
Virginia State Water Control Board
1982
UNITED STATES DEPARTMENT OF THE INTERIOR
James W. Watt, Secretary
GEOLOGICAL SURVEY
Dallas L. Peck, Director
For additional information write to:
U.S. Geological Survey200 West Grace Street, Room 304Richmond, Virginia 23220
CONTENTS
Page
Abstract ....................... 1
Introduction ..................... 2
Purpose and Scope ................... 2
Well Numbering System ................. 2
Cooperation and Acknowledgements ........... 4
Geophysical Logs ................... 4
Status of Geophysical Logging in Virginia ..... T . 10
References ...................... 34
ILLUSTRATIONS
Figure 1. Schematic block diagram of geophysicalwell logging equipment ........... 3
Figure 2. Map showing example of Virginia wellnumbering system .............. 5
Figure 3« Lithologic and geophysical logs of an observation well no. 52V-2 at the U.S. Geological Survey National Center, Fairfax County, Va. ............ 9
Figure 4. Map of Virginia showing general locationof wells logged by the USGS ........ 11
TABLES
Table 1. Listing of geophysical logs in Virginiaby the U.S. Geological Survey, WRD ..... 12
-iii-
AN INDEX OP GEOPHYSICAL WELL LOGGING IN VIRGINIA
BY THE U.S. GEOLOGICAL SURVEY
By
M. Patrick Mulheren, J. D. Larson, and H. T. Hopkins
ABSTRACT
Geophysical logs have been obtained in more than 170
wells in Virginia by the U.S. Geological Survey since 1968.
These logs include natural gamma, electric, caliper, tem
perature, fluid conductivity, and fluid velocity. Most of
the logs are for wells in the Coastal Plain Province of
eastern Virginia. Geophysical logs aid in the interpreta
tion of properties of earth materials, including the capac
ity to store and transmit water in the immediate vicinity
of the well bore.
1
INTRODUCTION
The U.S. Geological Survey uses geophysical logging as
an aid to understanding the properties of earth materials,
specifically how these materials store and transmit water.
Geophysical data are obtained by lowering sensing devices
into a well bore and measuring a physical characteristic of
the well bore, the material encountered, or the fluids con
tained in the rocks (fig. 1). The Virginia District has
maintained geophysical logging equipment since 1968. More
than 170 wells have been logged by this unit throughout the
state, with major emphasis on the Coastal Plain Province.
PURPOSE AND SCOPE
The purpose of this report is to list and report the
availability of geophysical well logs by the Geological
Survey in Virginia. The logs documented in this report are
on file at the District Office of the WRD in Richmond,
Virginia. The logs are not interpreted.
WELL-NUMBERING SYSTEM
The well-numbering system used by the U.S. Geological
Survey in Virginia is based on the "Index to Topographic
Maps of Virginia" (U.S. Geological Survey, 1975).
Quadrangles (map sheets covering 7 1/£-minutes of latitude and
longitude, published at a scale of 1:24,000 or 1 inch = 2000
-2-
RECORDER DRIVE
CABLE-MEASURING SHEAVEA.C.
POWERSOURCERegulated
RECORDER
SIGNAL CONDITIONING
ZERO POSITIONING
SENSITIVITY
TIME CONSTANT
ETC.
LOGGING
SPEED AND
DIRECTION
DOWNHOLE POWER
(Not Universal)
LOGGING CONTROLS
Figure 1. -- Schematic block diagram of geophysical well-logging equipment Cfrom Keys and MacCary, 1971).
feet) are identified by numbers and letters starting in the
southwest corner of the State. The quadrangles are numbered
1 through 69 from west to east beginning at longitude
83°^5', and lettered A through Z (omitting letters I and 0)
from south to north, beginning at latitude 36°30 T . These
numbers and letters are shown in the bottom and left margins
of figure 2, which shows a small portion of the state.
Wells are numbered serially within each 7V£-niinute
quadrangle. For example, well 53A 2 is in quadrangle 53A
and is the second well in that quadrangle for which the
location and other data were recorded.
COOPERATION AND ACKNOWLEDGEMENTS
This compilation of logs was made by the U.S. Geological
Survey in cooperation with the Virginia State Water Control
Board, R. V. Davis, Executive Secretary.
GEOPHYSICAL LOGS
The Virginia District has a vehicle-mounted geophysical
logging unit with natural gamma, electric (single point),
caliper, temperature and fluid conductivity probes. In
addition to these probes, the unit has a downhole velocity
meter and a thief sampler. The downhole velocity meter
meat3ures water velocities in the bore hole during pumping or
injection to determine which zones are yielding or accepting
77° 15' 77°00' 45* 30' 76°15'37°07" 30"
37°00'
^ I a fi Q .^ n'53 54
o 10 15 MILES
53A2
EXPLANATION
Observation well and well number
Figure 2. -- Map showing example of Virginia well-numbering system.
water. The thief sampler is used to collect water samples
at discrete zones.
Descriptions of the individual logs are given below, as
is their use in geologic and water-resources investigations.
The principles and applications of each type of log are
discussed in detail in "Application of borehole geophysics
to water-resources investigations" (Keys and MaeCary, 1971)-
The letter following the name of the log is used in the
table to identify the log type.
1) Natural-Gamma Log (J). "Natural-gamma logs are records
of the amount of natural-gamma radiation that is emitted
by all rocks. The chief use of natural-gamma logs is
for the identification of lithology and stratigraphic
correlation in open or cased, liquid- or air-filled
holes" (Keys and MacCary, 1971, p. 64).
2) Electric Log (E). The electric log combines the
spontaneous-potential log and the resistivity log.
a) Spontaneous-Potential Log. "Spontaneous-
potential logs are records of the natural poten
tials developed between the borehole fluid and
the surrounding rock materials. The spontaneous-
potential Is used chiefly for geologic correla
tion, determination of bed thickness, and
separating non-porous from porous rocks in
-6-
shale-sandstone and shale-carbonate sequences"
(Keys and MacCary, 1971, p. 23).
b) Resistivity Log. "Resistivity-logging devices
measure the electrical resistivity of a known or
assumed volume of earth materials under the
direct application of an electric current.
Depending on the device employed, resistivity
logs can be used for geologic correlation,
although this is not the most important applica
tion. Resistivity devices are generally used to
determine the formation resistivity, formation
porosity, mud porosity, hydrocarbon and water
saturation, fluid resistivity, and formation
factor" (Keys and MacCary, 1971, p. 37).
3) Caliper Log (C). "The caliper log is a record of the
average diameter of a drill hole. Its major use is to
evaluate the environment in which other logs are made in
order to correct them for hole-diameter effects and to
provide, information on lithology" (Keys and MacCary,
. 1971, p.37).
4) Temperature Log (T). "Temperature logs are continuous
records of the temperature of the environment imme
diately surrounding a sensor in a borehole. They can
provide information of the source and movement of water
-7-
and the thermal conductivity of rocks" (Keys and
MacCary, 1971, p. 99).
5) Fluid-Conductivity Log (F). "Fluid-conductivity logs
provide a measurement of the conductivity of the inhole
liquid between electrodes in the probe. After
appropriate corrections, the logs provide data on the
chemical quality of fluid in a bore-hole" (Keys and
MacCary, 1971, p. 106).
Two non-geophysical logs listed in this report are used
in conjunction with geophysical logs and are based on cut
tings and (or) samples collected during drilling. They are:
(1) Driller's Log (D). This is the driller's description of
materials observed during drilling.
(2) Geologist's Log (G). This log, made by a trained geolo
gist or hydrologist, identifies and describes the
geologic formation observed during drilling.
Figure 3 shows data from a well drilled at the U.S.
Geological Survey's National Headquarters in Fairfax County,
Virginia, in which geophysical logs were utilized with rock
samples collected to describe the formations (Larson, 1978).
A good correlation exists between the lithologic, electric,
and caliper logs. The caliper and resistivity logs show
sharp peaks to the right in sandy zones, which appear as
-8-
CA
LIP
ER
LO
G
(C)
Ho
le
dia
me
ter
in
inches
46
8
SP
ON
TA
NE
OU
S
PO
TE
NT
IAL
(EJ
100
millivo
lts
pe
r div
isio
n
EL
EC
TR
ICA
L
RE
SIS
TIV
ITY
(E
) G
AM
MA
LO
G
(J)
R-2
5
Rela
tive
activity
180-
20
0
GE
OLO
GIS
T'S
L
OG
C
G)
SA
ND
ST
ON
ES
ILT
ST
ON
E
EX
PL
AN
AT
ION
CO
NG
LO
ME
RA
TE
SA
PR
OLIT
ES
CH
IST
Fig
ure
3.
--
Lit'n
olo
gic
a
nd
g
eo
ph
ysic
al
logs
of
observ
ation
we
ll N
o.
52V
-2
at
the
U
.S.
Geolo
gic
al
Surv
ey's
N
ational
Ce
nte
r,
Fairfa
x
Co
un
ty,
Virg
inia
C
fro
m
La
rso
n,
19783.
large-diameter, washed out zones on the caliper log. The
contact between saprolite and unweathered schist is very
pronounced on these logs. The peak on the caliper logs
shows a wash-out zone at 150 feet; this peak is a thin sand
layer commonly found at the base of saprolite. The gamma
log shows distinctive drops across sandstone layers and
peaks across siltstones.
STATUS OP GEOPHYSICAL LOGGING IN VIRGINIA
Figure 4 is a map of Virginia showing the location of
holes logged. The Geological Survey office in Richmond,
Virginia has more detailed locations of the sites.
Table 1 is a listing of the geophysical logs obtained by
the Virginia District, U.S. Geological Survey. The data are
listed by county, the U.S. Geological Survey local well
number, latitude, longitude, depth of finished well, log
type, and depths to top and bottom of logged interval. An
explanation of log type follows:
J Natural-gamma log
E Electric log
C Caliper log
T Temperature log
F Fluid conductivity log
D Driller's log
G Geologist's log
-10-
ST
AT
E
OF
V
IRG
INIA
EX
PL
AN
AT
ION
Well
logged
by
U.S
.G
eo
log
ica
l S
urv
ey
* ^V
V«
Y\^
>SX
Fig
ure
4
. --
M
ap
o
f V
irgin
ia
sh
ow
ing
g
en
era
l lo
ca
tio
n
of
we
lls
log
ge
d
by
U.S
. G
eo
log
ica
l S
urv
ey.
LOG-
c-o i
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
63L
1
63L
4
63L
5
64J
1
64K
7
65K
2
65K
23
66L
1
7559
4737
4948
Accomack
7559
45
3749
40
7559
31
374921
7546
38
3736
00
7552
25
373845
7544
32
374324
7543
28
3744
38
7532
17
375225
40G
1 SO
W 12
78
4937
37
2133
Appomattox
HOLE-DEPTH
(FT)
991.00
1033.00
920.00
460.00
400.00
350.00
400.00
390.00
288.00
TYPE
J G J J E J D C D E J E D J C D E J C D E J C E J
LOG-TOP
(FT
BELOW
3.00
.00
.00
.00
2.00
.00
4.40
.00
5.40
3.70
.00
6.00
8.70
.00
9.90
11.30
4.00
.00
4.00
2.60
3.40
88.00
2.20
LOG-BOTTO>
LAND SURFAC
987.00
990.00
1033.00
920.00
420.00
460.00
371.00
340.00
385.00
374.00
350.00
184.00
292.00
400.00
260.00
292.00
377.00
390.00
380.00
382.00
272.00
270.00
272.00
Table 1. Listing of
Geophysical Logs in Virginia by the U.S. Geological Survey, WRD
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
41H
2
41H
7
32M
2
41H
1
41H
3
41H
4
783943
3725
14
7838
40
372454
32M
1 SOW
13
7947
30
3754
55
Bath
794921
3759
56
34G
1 SOW
7 79
3058
37
1809
Bedford
31H
1 SOW
14
795841
372744
Bote
tour
t
783921
372541
Buck
ingh
am
7840
46
3726
08
7837
40
3725
19
LOG-
HOLE-DEPTH
TYPE
LOG-TOP
LOG-BOTTOM
(FT)
(FT
BELOW
LAND SURFACE)
73.00
45.00
336.00
756.
00
241.00
399.00
88.00
54.00
D J G J Z C D E J C E F J T C E J C E J J D J
.00
4.70 .00
5.00 .00
3.70 .00
" 49.00
.00
4.70
126.50
130.00
4.60
40.00
4.80
61.00
3.40
5.00
18.0
03.00
4.00 .00
3.70
55.5
069.30
45.00
36.00
45.00
311.00
336.00
332.00
332.00
732.
0070
0.00
755.
0075
0.00
755.
00
240.00
240.00
240.00
372.00
372.00
372.00
85.00
55.5
049.30
77.00
4.00
70.8
0
Tabl
e 1. Listing of
Ge
ophy
sica
l Lo
gs in Vi
rgin
ia by th
e U.
S. Geological Su
rvey
, WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
52N
1 SOW
32
7718
29
380249
54G
10
SOW
66A
7705
52
3719
56
54G
11
SOW
66
7705
52
3719
56
59C
7
51H
6
50F
1
7624
51
364703
7725
31
372516
52G
2 77
1728
372054
51G
1 OW
77
2446
37
1644
7730
51
370954
COUNTY
Caro
line
Charles
City
Ches
apea
ke
Ches
terf
ield
Colo
nial
He
ight
s
Dinwiddie
LOG-
HOLE-DEPTH
TYPE
(FT)
278.00
C E J
600.
00
C E J
594.
00
C D G
1540.00
F T G
205.00
D E J
286.00
E
100.
00
C E J D
310.00
C E J T
LOG-TOP
(FT
BELOW
5.00
102.00
4.00
5.50
20.0
06.
30
8.80 .00
.00
6.10
6.10 .00
.00
20.00
10.0
0
70.00
9.80 .00
6.00 .00
8.00
40.2
08.00
10.0
0
LOG-
BOTT
O]LAND SURFAi
278.00
278.00
278.
00
596.
00600.00
597.
40
532.
0059
1.00
550.
00
1234.00
1234.00
1510.00
205.00
120.
0012
0.00
284.
00
99.2
010
0.00
99.2
010
0.00
304.
0031
0.00
308.00
306.
00
Table
1. Listing of
Geophysical
Logs
in
Virginia by
th
e U.S. Geological Su
rvey
, WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
On I
51U
13
51V
4J
52V
2
52V
18
53T
51
49V
40
55B
20
7727
55
3852
05
Fairfax
7723
40
385321
772201
3856
58
7721
55
385651
7709
34
3839
56
774127
3855
51
Fauq
uier
28D
1 SOW
20
8019
04
3654
36
Floyd
765618
364014
Franklin
LOG-
HOLE-DEPTH
TYPE
LOG-TOP
LOG-BOTTOM
(FT)
(F
T BELOW LAND SURFACE)
650.00
309.00
204.
00
205.
00
506.
50
500.
00
89.5
0
604.
00
c G C E C E J C G C F G J T D E J C E J C E J D E
.00
.00
10.0
090.00
8.00
14.0
07.00
14.0
00.
00
1.90
2.00 .00
2.20
5.30 .00
30.00
4.00
8.00
10.0
04.
00
3.90
60.0
02.00
17.0
024
.00
650.00
650.
00
309.
0030
9.00
204.
00
204.00
204.00
204.
00204.00
205.
0020
5.00
205.
0020
3.00
205.00
506.
0040
0.00
410.00
164.
0016
5.00
164.
00
88.5
089
.50
88.5
0
604.
0059
6.00
Tabl
e 1. Listing of
Ge
ophy
sica
l Lo
gs in Virginia by
the
U.S.
Ge
olog
ical
Su
rvey
, WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
HOLE-DEPTH
(FT)
58G
58G
58G
58G
58G
59G
39C
51K
5 IK
52J
52K
7 8 9 10 11 3 1 SO
W 11
1 6 17 8
763042
7630
42
7630
42
7630
39
7630
43
7624
14
7856
23
7725
13
7725
30
7720
30
7720
00
3718
56
Glou
cest
er
3718
56
3718
56
371854
371854
3718
00
3645
50
Halifax
3741
23
Hanover
3741
34
373644
3738
59
40 41 40 38 33 130
302
300
632
369
390
.07
.00
.71
.68
.77
.00
.00
.00
.00
.50
.00
TYPE
LOG-TOP
LOG-
BOTT01
(FT
BELOW LAND SURFAi
J D J J J J E J C E J J C D J D E J C D E J
1 6 7 4 4 1 4 6 4 5 7 2 9 5
.60
.00
.60
.00
.10
.00
.00
.00
.00
.50
.70
.90
.60
.00
.70
.00
.00
.00
.00
.00
.20
.00
40 56 38 40 38 33 126
127
299
301
302
203
548
632
552
368
368
369
388
380
388
388
.00
.00
.50
.10
.30
.80
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.50
.00
.00
.00
.00
Table 1. Listing of Geophysical Logs in Virginia by the
U.S.
Geological Survey,
WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
50J
1 SOW
23
7733
14
3736
07
Henrico
52H
3
52J
4
55B
3
55B
16
55B
24
772111
3729
36
771843
3731
51
52J
12
SOW
71
771637
3731
12
34P
1 SOW
26
7935
40
3812
50
High
land
7654
19
3640
46
Isle
of Wight
7654
49
3640
59
765357
3641
38
HOLE-DEPTH
(FT)
300.00
345.00
316.
00
610.
00
200.
00
755.
00
311.
00
180.00
TYPE
C E J C D E J C D E J C D J C D E J D J C D E J D J
LOG-TOP
(FT
BELOW
3.50
6.00
2.00
10.0
0.00
2.00
2.50
164.00 .00
14.0
02.10
3.80 .00
2.20
6.80 .00
64.00
5.20 .00
.00
5.00 .00
120.00
5.00 .00
4.00
LOG-BOTTO]
LAND SU
RFAl
296.
0030
0.00
300.00
299.00
340.
0029
8.80
304.
40
312.
00310.00
312.
00312.00
584.
0061
0.00
586.
00
132.
00200.00
106.
0013
2.00
755.
00608.00
300.00
311.00
301.00
301.
00
180.
0018
0.00
Tabl
e 1. Listing of
Ge
ophy
sica
l Lo
gs in
Vi
rgin
ia by
the
U.S. Geological Survey,
WRD Continued
LO
CA
L-N
UM
BE
R
LO
NG
ITU
DE
L
AT
ITU
DE
C
OU
NTY
55B
26765429
364353
HOLE-DEPTH
(FT)
849.00
55B 27
765422
364404
832.00
55B 28
765414
3644
15833.0
0
oo
55B
35
55B
36
7654
50
364116
765448
364125
55B
45
SOW
33
765327
364425
55B 59
765340
3638
46
628.
00
860.00
348.00
822.00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT
BELOW LAND SURFACE)
c D E J C E J D C E J D C E J C E J C E J A D E J C
15.0
0.0
041.00
10.0
0
7.50
320.
005.
60 .00
5.00
41.00
3.00 .00
4.00
180.00
1.00
3.30
176.00
1.80
2.00
4.00
6.00 .00
.00
365.00
4.70
38.00
748.00
849.00
825.00
823.00
656.00
656.00
590.00
832.00
800.00
814.00
814.00
832.00
620.00
622.40
620.00
848.00
848.00
848.00
343.00
368.00
345.00
822.00
822.00
818.00
741.00
811.00
Table 1. Listing of Geophysical Logs in
Virginia by the
U.S.
Geological Survey,
WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
57D
1 SO
W 5
7637
53
3659
42
HOLE-DEPTH
(FT)
800.00
56F
1 SO
W 18
76
4636
371311
Jame
s Ci
ty34
6.00
56H
20
OW764804
3723
1366
0.00
' 57G
1 SO
W 1
7644
18
3717
4960
5.00
58F
1576
3638
371151
563.
00
58F
23763628
371122
530.
00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT
BELOW LAND SURFACE)
c D E J C E J D C E D J D E G C J F D C F J T D C F J T
8.00
.00
80.00
8.00
10.0
044.00
10.0
0.00
20.00
.00
.00
4.00 .00
2.00 .00
10.0
08.
00150.00 .00
4.20
97.0
02.00
5.60 .00
4.20
80.00
2.00
5.60
448.00
800.00
454.00
450.
00
337.00
337.00
337.00
346.00
648.
00649.00
660.
00650.00
605.
00550.00
591.
0055
0.00
553.
00549.00
563.
00410.00
414.00
414.00
414.00
530.
00420.00
420.00
420.00
420.00
Tabl
e 1. Listing of Ge
ophy
sica
l Logs in Vi
rgin
ia by
th
e U.
S. Ge
olog
ical
Survey,
WRD Continued
LOG
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
54K
6 SO
W 64
77
0128
374328
King
and
Queen
56J
1
56J
2
56J
3
56J
4
56J
5
56J
8
56J
12
7648
19
3732
38
King William
7648
12
3732
26
7647
57
3732
32
7648
45
3733
03
7648
30
3732
46
7648
20
373234
7648
32
3732
49
HOLE-DEPTH
(FT)
390.00
852.00
667.
50
763.
00
811.00
1689
.00
640.
00
900.
00
TYPE C J D C D E J D J D J D E F J T D F J T C D E J D F
LOG-TOP
(FT
BELOW
.00
.00
.00
8.00
.00
123.00
2.00 .00
8.00 .00
3.00 .00
180.00
140.00
4.00
8.00 .00
80.00
5.80
4.10
40.0
0.00
136.00
2.10 .00
126.72
LOG-BOTTO]
LAND SURF A'
348.00
349.00
377.00
850.00
852.00
844.00
850.00
667.50
268.00
763.00
267.00
811.00
805.00
696.
00700.00
700
. 00
1689.00
1228.00
1228.00
1228.00
620.
00640.00
612.
00616.00
900.00
698.
00
Table
1. Listing of
Ge
ophy
sica
l Logs in Virginia
by th
e U.
S. Geological Su
rvey
, WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
HOLE-DEPTH
(FT)
56J
13
56J
15
56J
19
764904
3733
17
764817
373216
764812
373206
1315.00
709.00
450.00
56J
20764812
3732
06163.00
56J
21764824
373224
338.00
59K
1 SOW
15
762301
374249
Lancaster
727.00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT
BELOW LAND SU
RFAC
E)
J T C C E J D J C D F J T C D F J T D C F J T D E J
1.00
2.00
1.30 .00
4.00 .00
.00
.00
3.40 .00
113.00
7.60
100.00
4.70 .00
20.00
3.30
20.00
.00
4.70
113.00
2.70
10.0
0
.00
5.10
6.00
750.
0075
0.00
696.
00
1292.00
1306.00
1313.00
709.
0066
2.00
395.
0045
0.00
395.00
400.10
395.
00
159.
0016
3.00
159.
4016
0.00
159.
40
335.
0033
7.20
337.
0033
3.00
337.
80
716.
0072
6.00
727.
00
Tabl
e 1, Listing of Ge
ophy
sica
l Logs in
Vi
rgin
ia by the
U.S.
Geological Su
rvey
, WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
59K
8 76
2614
3740
35
49Y
1 SO
W 22
7742
38
3915
42
Loudoun
51V
3E77
2712
3856
17
58J
5
60J
2
27F
1
54H
1
763126
373630
Middlesex
58K
1 SO
W 31
763425
37
3809
761759
3733
24
8025
36
371346
Montgomery
27F
2 SOW
19
8026
19
3708
12
39K
1 SOW
6 78
5556
37
4224
Nelson
7702
10
3727
39
New
Kent
LOG-
HOLE-DEPTH
TYPE
LOG-TOP
LOG-BOTTOM
(FT)
(F
T BELOW LAND SURFACE)
677.
00
516.
00
020.
00
742.
00
552.
00
792.
00
486.
00
450.
00
275.
00
367.
00
J E D C E J T D E C J J C E J C E J C G J E J
.00
44.0
0.00
6.00
36.00
8.00
20.00
.00
.00
4.00
8.00
8.10
8.00
16.0
03.
30
5.20
39.00
4.50
7.00 .00
2.50
146.00
3.10
673.
00
476.00
516.
00
1000.00
894.
001014.00
960.00
742.
0074
2.00
552.
0055
2.00
224.00
486.00
486.00
486.00
440.00
445.
60444.00
268.00
275.00
270.
00
310.
0031
0.00
Tabl
e 1. Listing of
Ge
ophy
sica
l Lo
gs in
Virginia by
the
U.S.
Geological Survey,
WRD Continued
LOG-
LOCAL-NUMBER
55H
1 SO
W 17
58F
1 SOW
2
58F
2
59E
5
60C
1
60C
2
60C
3
60C
4
60C
5
6 1C
1 OW
LONGITUDE
765615
7633
56
7635
00
7622
43
7617
25
761725
7617
25
761725
7617
30
761221
LATITUDE
COUNTY
372428
371027
Newport News
3711
54
3705
38
3650
46
Norf
olk
3650
46
3650
46
3650
46
365051
365223
HOLE-DEPTH
(FT)
778.00
443.00
526.00
2092.00
780.00
763.00
822.
00
783.
00
765.00
2587.50
TYPE C D E J C J C D J D E I J C E J J J C E J J C D
LOG-TOP
(FT
BELOW
8,00 .00
5.00
3.00
9.40
5.00
5.00 .00
3.50 .00
.00
.00
.00
6.00
16.0
0.0
0
6.00
10.0
0
214.00
230.
003.00
2.00
256.00 .00
LOG-
BOTT
O]LAND SU
RFAi
622.00
717.00
778.00
642.00
440.00
425.00
500.00
526.00
508.00
2091.00
2091.00
2091.00
2091.00
400.00
680.00
780.00
738.00
818.00
540.
00781.00
783.00
740.00
2220.00
2587.00
Table
1. Listing of
Geophysical Logs in Virginia by the
U.S.
Geological Survey,
WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
61C
2
61C
3
61C
4
61C
5
61C
8
63F
1
63F
16
761215
365221
761215
3652
21
761215
365221
7612
13
3652
21
7611
28
3650
38
755732
3711
59
Nort
hamp
ton
755835
3713
07
HOLE-DEPTH
(FT)
1019.00
1002.00
1016.00
1762
.00
1065.00
470.
00
301.
00
TYPE E G J L N U C E J G C E J G E J D J E J D J C D E J
LOG-TOP
(FT
BELOW
242.00
100.00
4.00
100.00
32.0
0.00
14.0
090
.00
.00
.00
22.00
75.00
10.0
0.0
0
14.0
0.0
0
.00
.00
119.00
3.00 .00
3.00
3.00 .00
1.60
1.50
LOG-BOTT01
LAND
SU
RFAi
2470
.00
2587
.00
2582
.00
2580.00
2582.00
2584.00
1002.00
1015
.00
1016.00
1019.00
1000
.00
996.
001002.00
995.
00
998.
0010
16.0
0
1762.00
1016.00
1016.00
1027.00
470.00
460.00
282.00
301.00
291.00
287.00
Table 1. Listing of Geophysical
Logs in Virginia by
the
U.S.
Geological Survey,
WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
28C
3 80
2159
364801
Patr
ick
30C
1 SO
W 10
800703
364732
33B
1
60C
7
49U
1
793954
3638
43
Pitt
sylv
ania
7619
17
3651
15
Port
smou
th
51E
1 SOW
41
772341
370221
Prin
ce Ge
orge
52F
1 SOW
38
7717
19
3713
15
53E
1 SOW
37
7713
46
370730
7742
08
3849
30
Prin
ce Wi
llia
m
HOLE-DEPTH
(FT)
200.
00
250.00
658.00
1459.00
127.00
180.00
146.00
345.00
TYPE G C E G J C D E J D G E J C J C E J C E J C D E J
LOG-TOP
(FT
BELO
W
.00
4.50
12.0
0.0
03.00
9.20 .00
' 46.60
7.50 .00
.00
2.00 .00
7.00
6.00
8.00
70.0
03.00
5.00
51.00
3.00
4.00 .00
6.00
3.00
LOG-BOTT01
LAND SU
RFA(
200.00
247.00
250.00
250.
0025
0.00
656.00
650.00
658.00
657.20
1459.00
1372.00
1454.00
1450
.00
127.
0012
6.00
180.
0017
9.00
180.
00
145.00
145.
00145.00
330.00
345.00
344.00
342.00
Table
1. Listing of
Geophysical Logs in
Virginia by the
U.S.
Geological Su
rvey
, WRD Continued
tsj I
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
49V
1
SOU
IF
51S
2
51S
4
51S
7
51S
8
51S
9
773811
385607
773206
38
4904
772506
772457
772459
7722
50
772251
383441
3835
00
383423
3834
53
383506
HOLE-DEPTH
(FT)
165.00
402.30
101.00
199.50
490.00
250.00
190.00
LOG-
TYPE
C D E J C D E J T C D E J C E J C D J E T C J C E J T
LOG-
TOP
(FT
BELO
W
8.00 .00
8.00
4.00
6.00 .00
60.0
03.20
84.0
0
8.00 .00
7.20
5.00
5.00
25.80
2.70
4.00 .00
2.00
2.00
4.00
5.00
3.90
6.00
37.0
04.
005.
00
LOG-BOTTOM
LAND SURFACE)
164.00
165.00
165.00
164.
00
402.
0040
2.00
402.
0040
2.00
402.
00
100.
70100.00
101.
0010
1.00
196.
0019
7.70
199.00
489.
7049
0.00
489.
3048
8.00
488.90
247.
40248.30
187.
60189.00
189.30
189.
20
Tabl
e 1. Listing of
Geophysical
Logs
in
Vi
rgin
ia by the
U.S. Ge
olog
ical
Su
rvey
, WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
52S
1772131
3836
24
HOLE-DEPTH
(FT)
200.00
52S
3
52S
4
772206
383343
771513
383634
103.00
242.00
52S
5 771513
383634
52S
16
OW
772109
3835
35
52S
17
52S
29
772056
383356
772216
383551
550.00
108.00
350.
00
52S
3077
2048
383330
310.00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT
BELOW LA
ND SU
RFAC
E)
c E J E J C E J C E G J
6.00
95.0
05.70
9.80
9.90
4.75
6.90
7.00
8.00
5.30 .00
5.40
200.00
200.00
200.00
200.00
202.00
101.
20103.00
101.30
232.00
240.00
242.00
236.00
21.0
0116.00
C J c E J C D E F J C E J
3.50
2.80
5.80
40.0
03.90 .00
.00
.20
4.00
2.00
7.00
5.00
6.00
43.60
45.80
70.70
71.10
71.10
350.00
350.00
350.00
350.50
350.50
159.50
160.00
160.
20
Table 1. Listing of
Geophysical Logs in Virginia by the
U.S. Geological Survey,
WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
53T
2 SOW
29
7713
55
3838
30
HOLE-DEPTH
(FT)
162.00
25E
1 SOW
9 80
3744
37
0254
Pulaski
319.
00
29G
180
0818
37
1706
Roanoke
408.
00
CsJ
oo 1
35L
1
40R
1
41Q
1
43V
1
7926
13
3749
46
Rock
brid
ge
7849
00
382339
Rockingham
7842
40
3821
50
781955
3855
40
Shenandoah
612.
00
392.
00
310.
00
1124.00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT BELOW LAND SURFACE)
c D E J C E G D J C D E F J T C E J C D E J C E J C E J
.00
.00
.00
.00
6.00
56.00
.00
.00
4.00
5.50 .00
160.50
56.5
06.
8040.00
5.00
292.
005.
00
5.50 .00
69.5
06.00
4.00
82.0
04.00
60.00
36.00
20.00
156.
0016
0.00
160.
0016
0.00
318.
00318.00
319.00
319.00
318.
00
360.00
408.00
360.
0036
4.20
360.00
364.20
612.
0061
2.00
612.
00
390.
0030
0.00
392.
0039
2.00
309.00
309.40
309.
50
1124.00
1124.00
1124.00
Tabl
e 1. Listing of Geophysical
Logs in Vi
rgin
ia by
th
e U.
S. Ge
olog
ical
Survey,
WRD Continued
LOCAL-NUMBER
51B
3
53A
2
54B
4
54B
6
54B
24
SOW
34
55D
5
LONGITUDE
LATITUDE
COUNTY
LOG-
HOLE-DEPTH
TYPE
LOG-TOP
LOG-BOTTOM
51Q
56A
1 SOW
47
772307
771149
770410
770013
770137
765320
772232
764929
364109
Southampton
363457
364307
363915
364121
3654
15
382220
363511
Stafford
Suffolk
(FT)
253.
00
269.
80
238.
00
760.
00
224.
00
516.
00
332.
00
1149
.50
C E J C E J C E J D E J J C D E J C D E J D E F J T
(FT
BELOW
2.00
2.00
2.40
10.0
05.00
3.60
2.80
78.0
02.
30 .00
6.00
6.50
2.30
5.00 .00
.00
.00
.00
.00
.00
.00
.00
12.3
09.00
6.00
3.70
LAND SU
RFAi
250.00
252.00
252.00
269.00
269.80
269.80
225.00
226.00
225.00
760.00
760.00
677.
70
224.00
442.00
516.00
508.00
445.00
332.00
330.00
330.00
331.00
1149.60
1148.00
1149.60
1156.00
1154.00
Table
1. Listing of
Geophysical Logs in Virginia by the
U.S. Geological Su
rvey
, WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
HOLE-DEPTH
TYPE
(FT)
56A
9 SO
W 76
76
5226
36
3625
1063.40
C D E J T
56B
7 76
4556
3640
51
511.
00
C D E J
58A
1 SO
W 36
7633
45
363702
420.00
C J D
^
58A
2 SO
W 42
76
3500
36
3409
20
17.0
0 D
o
E F G J T
58B
4 763451
3643
33
604.
00
D
58B1
14
7631
48
364301
569.
90
J
58B2
38
OW
7630
39
3638
03
6.06
D
58C
1 SOW
4 76
3232
3646
35
1024.00
C E J D
LOG-TOP
(FT
BELO
W
2.50 .00
.20
6.00
6.00
6.00 .00
18.00
4.00
6.00
4.00 .00
.00
2.00
200.
002.
001.00
22.00
.00
3.30 .00
6.00
47.7
04.
00 .00
LOG-
BOTT
01LA
ND SURFAi
1063.00
1063
.00
1063.40
1063.00
1014.00
480.00
511.
0048
5.00
480.00
395.00
410.00
380.00
2017
.00
1840.00
1800
.00
2017.00
1833
.00
1800
.00
603.
50
568.
00
6.06
876.00
877.00
876.00
1024.00
Tabl
e 1. Listing of
Geophysical
Logs
in Virginia by
th
e U.
S. Geological Survey, WRD Continued
LOG-
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
56E
1 OW
54D
1
61C
12
61C
20
61D
2
764601
3704
08
Surr
y
56F
2 SO
W 39
76
5007
37
0800
57F
1 SOW
40
7643
49
3708
39
53D
3 SOW
48
7709
02
365843
Sussex
770021
3658
45
54D
3 SOW
43
7701
33
3659
28
760757
3650
50
Virginia Beach
760757
3650
50
761117
3653
33
HOLE-DEPTH
(FT)
799.00
367.00
288.
00
554.
00
840.00
218.00
125.
00
200.00
1142.00
TYPE C D E G J C J C E J C D E J C E J C J D J J D E J
LOG-TOP
(FT
BELOW
9.00 .00
333.
00291.00
7.00
6.00
9.00
10.0
040.00
2.00
5.00 .00
4.80 .00
10.0
010
.00
10.0
0
4.00
3.00 .00
2.90
2.00 .00
70.0
03.90
LOG-BOTT01
LAND
SU
RFA<
702.00
798.00
700.00
411.00
700.00
367.00
367.00
288.00
288.00
288.00
550.00
554.00
554.00
554.00
784.00
832.00
838.00
218.00
218.00
125.00
121.20
194.70
1142.00
1140
.80
1121.50
Table
1. Listing of
Geophysical Logs in
Virginia by th
e U.S. Geological Survey,
WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
62D
2
63C
1
54P
3
760647
3657
59
755851
3652
00
7702
19
381010
Westmorland
HOLE-DEPTH
(FT)
1502.00
1593.00
1385.50
LOG-
TYPE
K)
I
55P
3
55P
10
11D
3
765531
3811
22
7657
20
381211
8227
20
3658
08
Wise
814.
00
975.
00
605.
80
56N
1 SOW
16
7649
08
380538
646.
00
LOG-TOP
LOG-BOTTOM
(FT
BELOW LAND SURFACE)
D J E D J C N E D J T U E J D D E J C E F J T C E J
.00
120.00
11.0
0
.00
.00
.00
.00
70.00
80.00
.00
.00
.00
40.00
8.00 .00
.00
180.00
3.90
8.00
28.00
5.50
6.00
7.00
6.00
140.00
3.30
1502.00
1389.00
586.
00
1593.00
1307.00
1352.00
1352.00
1346.00
1385.50
1356.00
1356
.00
1352.00
814.00
814.00
814.
00
975.00
560.
0073
1.00
600.
0060
1.00
604.
0060
4.00
605.80
646.
0064
1.00
646.00
Tabl
e 1. Listing of
Geophysical
Logs
in Vi
rgin
ia by the
U.S.
Ge
olog
ical
Survey,
WRD Continued
LOCAL-NUMBER
LONGITUDE
LATITUDE
COUNTY
57G
2 SO
W 3
7637
59
3719
16
York
58F
48763257
3713
49
HOLE-DEPTH
(FT)
387.00
180.
00
59F
1 SO
W 27
76
2919
37
1304
446.
00
LOG-
TYPE
LOG-TOP
LOG-BOTTOM
(FT
BELOW LAND SURFACE)
10.7
010
.00
2.80 .00
4.00
2.70 .00
4.00
378.
0038
0.00
180.00
180.00
180.00
180.
00
440.
00446.00
Tabl
e 1. Listing of Ge
ophy
sica
l Lo
gs in
Vi
rgin
ia by the
U.S.,
Geol
ogic
al Survey,
WRD Continued
REFERENCES
Keys, W. Scott, and MacCary, L. M., 1971, Application of
borehole geophysics to water-resources investigations:
Techniques of Water-Resources Investigations of the U.S
Geological Survey, book 2, chapter El, 126 p.
Larson, J. D., 1978, Hydrogeology of the observation well
site at the U.S. Geological Survey National Center,
Reston, Va. U.S. Geological Survey open-file report
No. 78-144, 35 p.
U.S. Geological Survey, 1975, Index to topographic maps of
Virginia.
-34-