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.

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