ML020310325

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Attachment 3: Data Report E, Borehole Geophysical Logging Survey Interim Spent Fuel Storage Installation Diablo Canyon Power Plant, San Luis Obispo, Ca
ML020310325
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 06/01/2001
From: Bachhuber J, Henrich W
NORCAL Geophysical Consultants
To:
Office of Nuclear Reactor Regulation
References
+sispmjr200505, -RFPFR, Job Number 01-390.04B
Download: ML020310325 (97)


Text

ATTACHMENT 3 DATA REPORT E NORCAL Geophysical Consultants, Inc. Report "Borehole Geophysical Logging Survey, Interim Spent Fuel Storage Installation, Diablo Canyon Power Plant, San Luis Obispo, CA" June 1,2001 Diablo Canyon ISFSI Data Report E, Rev. 0 E-113 of 350

A m

mm inau BOREHOLE GEOPHYSICAL LOGGING SURVEY INTERIM SPENT FUEL STORAGE INSTALLATION DIABLO CANYON POWER PLANT SAN LUIS OBISPO, CALIFORNIA NORCAL Job Number 01-390.04B A report prepared for WILLIAM LETTIS AND ASSOCIATES, Inc.

1777 Botelho Drive, Suite 262 Walnut Creek, California 94596 Attention: Jeff Bachhuber by Caliorni Reg t

enrich California Regi~tered Geophysicist GP-893 NORCAL Geophysical Consultants, Inc.

1350 Industrial Avenue, Suite A Petaluma, California 707/763-1312 June 1, 2001 Diablo Canyon ISFSI Data Report E, Rev. 0 E-114 of 350

T AL TABLE OF CONTENTS INTRO D UC TIO N.............................................

SCO PE O F W O RK...........................................

SITE C O N D ITIO NS...........................................

DATA ACQ UISITIO N..........................................

DATA REDUCTIO N...........................................

DATA PRESENTATION........................................

INTERPRETATION AND DISCUSSION............................

APPENDICES Appendix A: CALIPER LOG Appendix B: INTERPRETED OPTV PLOTS Appendix C: INTERPRETED FRACTURE and BEDDING TABLES Diablo Canyon ISFSI Data Report E, Rev. 0 E-115 of 350 IV III IV V

VI Vil VII VIII 1

1 1

1 2

3 3

AL I. INTRODUCTION A borehole geophysical logging survey was conducted at Pacific Gas and Electric's (PGE)

Diablo Canyon Power Plant (DCPP) in San Luis Obispo County, California. This survey is in support of a geotechnical investigation for a proposed Interim Spent Fuel Storage Installation (ISFSI). The geophysical logging was conducted in three phases as follows; (1) April 20 and 21, (2) April 23 and 24 and (3) April 28, 2001 by NORCAL Geophysicists William J. Henrich and Dan Jones. Field activities and logistical support was provided by Jeff Bachhuber, John Helms and Charles Brankman of William Lettis Associates, Inc.

The purpose of the survey is to characterize bedrock fracture frequency, calculate fracture orientation and identify bedding attitudes in ten exploratory borings which penetrated the Obispo formation. The following presents a description of the borehole methodologies and results of the survey.

II. SCOPE OF WORK We conducted a suite of geophysical logs consisting of caliper and optical televiewer (OPTV) in ten borings designated as 01 -CTF-A and 01 -A thru -I. Depths of these borings ranged from 58 to 320 feet. This logging was performed in accordance with NORCAL Geophysical Consultants Work Plan, Geophysical Investigation for the DCPP-ISFSI Site dated December 4, 2000.

III. SITE CONDITIONS The study site is situated on a north facing hill slope within Diablo Canyon two to three hundred yards east of the main plant and reactor facilities. The general geology consists of a thin (2-5 feet) layer of alluvium overlying mostly thinly to massively bedded sandstone of the Obispo formation (Tertiary Age). Exploratory boreholes were drilled with a nominal 4-inch diamond core bit (HQ-size) which penetrated the underlying rock to depths ranging from 58 to 321 feet below ground surface. In general, encountered static water levels ranged from about 15 feet above total depth to completely dry conditions. Boreholes were drilled vertically and generally included shallow conductor casing collared into stable bedrock. The ground surface at each borehole was used as the geophysical logging reference datum.

IV. DATA ACQUISITION, CALIBRATION QUALITY CONTROL Geophysical logging consists of lowering a series of instrumentation (probes) downhole to measure borehole environmental and formation characteristics. In this logging phase, our survey consisted of borehole diameter measurements and acquisition of high resolution optical images of the borehole sidewall. Borehole diameter and optical images were made with three-ann Page 1 Diablo Canyon ISFSI E-i 16 of 350 Data Report E, Rev. 0

7w-m87-n caliper and digital optical televiewer probes, respectively. The caliper probe contains spring loaded arms that record the variations in average borehole diameter (in inches) as a function of depth. The optical televiewer (OPTV) probe consists of a fixed CCD camera that records an analog video image of the borehole sidewall wall. A two-dimensional "unwrapped" sidewall image of the borehole is created by a reflecting hyperbolic mirror below the camera and oriented to magnetic north from a reference signal generated by an on-board compass during digitization.

The OPTV probe contains a complete orientation package (3-axis magnetometer and 3-axis inclinometer) that in addition to the north reference, the bearing and inclination of the borehole axis is recorded with the video image. These probes were manufactured by Robertson Geologging, Ltd. and operated with the manufacture's Winlogger-OPTV logging acquisition system. In addition to the probes, the logging system consisted of a PC based control console (Windows 98 OS), thermal printer, four-conductor logging cable and a portable 12 VDC powered winch.

All geophysical log data were acquired in the up-hole direction. Logging speed for caliper runs averaged 10 feet per minute. The data sampling rate was every 0.05 feet. OPTV logging runs were operated at 3 feet per minute at a data sample rate of 0.003 feet. Prior to actual logging, caliper log response was calibrated with a series of known diameters. The value of caliper diameters ranged from 2 to 8 inches. We used primarily 3 different diameters to compute a calibration curve (polynomial fit). Exact calibration measurements relating the probe output (counts per second) to calibration values can be found at the end of Appendix A, Caliper Logs.

We verified OPTV tool's north reference (magnetic north) with a Brunton compass and a probe sleeve before and after each log. This procedure was witness by the on-site QA/QC manager.

Quality control and stability of logging measurements were verified by re-recording or repeating portions of each geophysical log. Our caliper and OPTV repeats were conducted in the lower 25 and 20 feet of each borehole, respectively. These repeats can be found following the main log section in Appendix A, Caliper Logs and Appendix B, Interpreted OPTV Plots. In general, caliper logs repeated by better than 5 percent compared to the main log section except in zones were the borehole breakouts were measured as several inches greater than the nominal bit diameter. OPTV logs were identical with respect to north direction with a maximum of 0.10 feet difference in depth.

V. DATA REDUCTION Continuous caliper data were transformed by daily calibration curves to measured borehole diameter in inches and smoothed with an 11-point center box car filter. These logs have been plotted with the WINLOGGER (Version 2.01) acquisition and replay software. The OPTV logs were corrected for true geographic north by addingl 4 degrees to magnetic referenced directional azimuths in the interpretation software program RGLDIP (Version 5.3) by Robertson Geologging, Ltd.

Page 2 Diablo Canyon ISFSI E-1 17 of 350 Data Report E, Rev. 0

VI. DATA PRESENTATION 1.0 Caliper Logs Continuous caliper log plots have been presented at a vertical scale of 1 inch equal 10 feet. The repeat caliper section follows the main log section. These plots can be found in Appendix A beginning with Borehole 01-CTF-A and subsequently followed in alphabetical order by Boreholes 01-A through 01-I.

2.0 Optical Televiewer Logs The color OPTV plots images are presented in Appendix B in the same order as the caliper logs with the repeat section trailing the main log section. These OPTV plots contain from left to right; (1) a perspective view of the borehole as a core projection, (2) "unwrapped "oriented OPTV image, (3) arrow (tadpole) plot which represents interpreted fracture or bedding in terms of dip magnitude (Y-axis) and azimuth (direction of the tadpole symbol "tail") and (4) a COMMENT column that describes fracture/bedding features as planar, irregular or discontinuous. The rightmost graph (5) shows a deviation plot of the borehole trajectory in arrow plot form. For the ten borings surveyed, the deviation data indicated all boreholes deviated was less than 3 degrees from vertical. The details of the above interpretation are presented in the respective summary data tabulations (See Appendix C, Interpreted Fracture and Bedding Tables). These tables list depth, dip azimuth, dip angle, number of points (n) nominated along a fracture or bedding trace, classification of a feature as either a fracture (2) or bedding (0), upper and lower depth of the feature trace and borehole deviation in terms of azimuth and inclination at the specific depth of each borehole feature.

VII. INTERPRETATION AND DISCUSSION 1.0 General Borehole Conditions Our caliper logs indicated that borehole diameter for all ten borings was a constant four inches.

Most boreholes, however, showed several breakouts measuring several inches in diameter in excess of four inches and up to several feet in vertical length. These breakouts when viewed by the OPTV logs correlated to highly fractured zones or clay beds. Some of these fracture zones collapsed and blocked transit of probes in Borings 01-A, -E and -I. This necessitated the need to log these boreholes in stages after the blockage was cleared or stemmed with a protective casing.

Over 95 percent of the OPTV logging footage was conducted under unsaturated (dry) conditions.

Cloudy or turbid fluid conditions prevented the acquisition of an interpretable video image in Boring 01-E.

Page 3 Diablo Canyon ISFSI E-118 of 350 Data Report E, Rev. 0

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1U 2.0 Fracture Analysis Planar orientation of fractures were calculated with the interpretation program RGLDIP Version 5.3 written by Robertson Geologging, Ltd. Within this program, OPTV images are replayed on a PC computer screen. At this stage several interpretation options are available which basically require the interpreter to interactively fit an ideal sinusoidal trace representing a plane to an observed fracture trace. These options are as follows: (1) nominating points along the trace of the fracture, (2) fit a flexible sinusoid to a fracture trace or (3) employing a semi-automated picking procedure whereby the interpreter selects points at the minimum (trough) and the maximum (peak) extent of the observed fracture trace. In the first method, typically 5 to 15 points were chosen along each fracture trace for interpolation. Regardless of the interpretation method, the program at this point mathematically calculates a" best fit"ellipse that represents the plane of the fracture in terms of dip magnitude and dip direction. The ellipse in turn is represented as continuous red sinusoid that has been superimposed over complete or partially viewable fracture traces on the unwrapped OPTV image plots (second plot from the left) as shown in Interpreted OPTV Plots (see Appendix B). Numeric dip angle and azimuth are represented in the adjacent arrow plot. The determination of dip angle assumes that the borehole can be approximated as a cylinder of a constant diameter which for this survey was four inches.

Most fracture features in this survey appeared continuous (360 degrees) across the unwrapped OPTV image plot. However, in highly fractured zones or in log sections containing high angle fractures (60 degrees or greater), only a segment or discontinuous segments of fracture traces were observed. The apparent segmentation of fracture traces maybe related variations cementation and fracture aperture of the fracture or spalling along the intersection of the fracture plane and borehole wall. Though segmented, the program has the facility to interpolate a dip magnitude and dip direction given that a sinusoid overlaps the various segments. Whether continuous or discontinuous, not all fractures traces can be fitted with a simple sinusoid. This is because rock properties are not completely homogeneous with the result that certain rock fractures did not propagate along an exact plane. Also, borehole enlargements and the resulting probe decentralization will geometrically distort the image trace of a fracture feature and thus appear irregular with respect to an overlapping sinusoidal trace representing a best fit ellipse. In these above instances we have noted whether a fracture is discontinuous or irregular in the "COMMENT" column of the Interpreted OPTV Plots.

Not all fractures have been analyzed. As an example, near vertical features such as those shown in Boring 01-I at depths ranging from 119 to 124 feet (see Appendix B) are not interpreted because of the difficulty of fitting a sinusoid to fractures traces greater than 87 degrees. High density, complexly fractured intervals such as the one shown between 135 and 139 feet in the same Boring are not analyzed because the fracture traces, though seen in the OPTV replay, are either too irregular or discontinuous from intervening fracture offsets to be confidently assessed as distinct features.

Page 4 Diablo Canyon ISFSI E-119 of 350 Data Report E, Rev. 0

- A In the 10 borings analyzed, we identified a total of 643 features of which about 90 percent were classified as fractures (see Fracture and Bedding Table, Appendix C). As described in the above paragraphs, not all fractures were analyzed. This is to say the rock mass is probably more fractured than number of individual fractures indicated in the Table and that the number of very high angle fractures are under represented. Also, as a generalization, most of the fracture dips tabulated exceeded 45 degrees.

3. Bedding Identification Orientation of bedding traces were calculated in the same manner as fractures. The determination of whether a planar or near planar borehole feature is classified as a fracture or bedding is subjective. Bedding on a optical televiewer image is usually displayed as a series of banding or fine laminations where the contrast between individual beds is either tonal or textural. We observed mostly tonal (color) changes that indicated bedding in this survey. An example can be found in Boring 01-I at depths ranging from 172 to 176 feet. Bedding planes here are characterized by variations in color. A continuous green colored sinusoid superimposed on bedding trace represents our interpreted best fit. Bedding attitudes determined by the RGLDIP program at this locale dips show shallow dips ranging from 9 to 14 degrees with dip direction to the northwest. Taking all borings as a whole, the predominate bedding dip angle is shallow (6-14 degrees) with dip direction towards the west-northwest. Bedding features which depart significantly from this general attitude are related sheared clay beds or discoloration due to oxidation.

Diablo Canyon ISFSI Data Report E, Rev. 0 Page 5 E-120 of 350

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Appendix A CALIPER LOGS BORINGS: 01-CTF-A, 01-A, -B, -C, -D, -E, -F, -G, -H and -I Diablo Canyon ISFSI Data Report E, Rev. 0 E-121 of 350

ROBERTSON GEOLOGGING TECHNOLOGY I

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1 0

0 BIT RECORD BIT FROM 04/20/01 1

3ACS 58.60 56.35 56.35 3.00 WATER 48 0.00 DJONES C BRANKMAN TO 3.75 0.00 58.60 0.00 0.00 0.00 0',,

0.00 0.00 BIT THREE-ARM CALIPER OTHER SERVICES OPTV KB 0.00 DF 0.00 GL 0.00 04/20/01 0

3ACS 58.00 56.00 56.00 25.00 WATER 0.00 d jones C BRANKMAN 04/20/01 0

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1 0

0 BIT RECORD BIT FROM Elev 315 04120/01 1

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0 RUN#

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REMARKS (C:\\boreholeclients\\diablo2\\01HC1.hed)

FLUSHED WITH FRESH WATER run 2 = repeat caliper section

CALP Inch 10.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 Diablo Canyon ISFSI Data Report E, Rev. 0 E-148 of 350 0.00

II I

+/-4..i.L

'1 K

6 -

6 6 -

6

  • -----

L 

L -

Diablo Canyon ISFSJ Data Report E, Rev. 0 01-H E-149 of 350 0.00 CALP Inch 10.00 70.00 80.00 90.00 RUN 2 REPEAT

'II

ROBERTSON GEOLOGGING TECHNOLOGY NORQ( j (Gill'II IYSICA C0)NSI. iI.\\\\1 IN(.

DIABLO CANYON THREE-ARM CALIPER r

01-I DCPP ISFSI USA CA Perm. Datum Elev 575 Log, Datum GROUND Drill Datum GROUND DATE RUN#

TYPE OF LOG DEPTH DRILLER DEPTH LOGGER LOG DEEPEST LOG SHALLOW FLUID IN HOLE SALINITY DENSITY LEVEL MAX TEMP °C RIG TIME RECORDED BY WITNESSED BY 28/04/01 1

3ACS 321.00 320.20 320.20 5.50 WATER 0.00 w henrich c brankman OTHER SERVICES OPTV KB DF GL 28/04/01 0

3acs 321.00 320.00 320.00 269.00 water 0.00 W HENRICH c brankman 0.00 0.00 0.00 0

0 0.00 0.00 0.00 0.00 0.00 RUN#

BIT RECORD CASING RECORD BIT FROM TO BIT WEIGHT FROM TO 4.00 0.00 4

0.00 0.00 4.00 81.00 0.00 320.20 0.00 0.00 6.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.0 i.

COMPANY WELL FIELD COUNTRY STATE COUNTY LAT.:

LONG.:

0*

1 0

0 I

REMARKS (C:\\boreholeclients\\diablo2\\01-ic.hed) run 2 = caliper repeat.

borehole completed on 04-23-01 SPUDDING BOREHOLE WITH CALIPER PROBE

100 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 Diablo Canyon ISFSI Data Report E, Rev. 0 E-151 of 350 0.00 CALP Inch L

F 10.00

110.00 120.00 130.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 Diablo Canyon ISFSI Data Report E, Rev. 0 E-152 of 350

210.00 220.00 230.00 240.00 250.00 260.00 270.00 280.00 290.00 300.00 310.00 E-153 of 350 Data Report E, Rev. 0

Ii

=

=

I I

i320.00 Diablo Canyon ISFSI Data Report E, Rev. 0 E-154 of 350 I

I I

I

CALP Inch 10.00 RUN 2 REPEAT Diablo Canyon ISFSJ Data Report E, Rev. 0 01-I E-155 of 350 0.00 270.00 280.00 290.00 300.00 310.00 320.00

04-2Ocalibration CALIBRATION FILE GENERATED BY RG - WINLOGGER for CALIPER BOREHOLES: O1-CTF-A, 01-A. 01-G

[GeneralI]

LastModified =20/04/0 1 Sonde=3ACS SerialNo=3555

[Channei2)

LastCalibration=20/04/01 NextCalibration=20/04/01 CalibrationlInterva 1=0 days Cal ibrationMethod=Polynom CoefficientO=-7. 535512965 Coefficientl=0.001 127395716 Coefficient2=0 Coefficient3=0 JigCount=2 ReferencePoint0=8458 CPS at 2 Inch ReferencePointl =1 2006 CPS at 6 Inch ReferencePoint2=1 3789 CPS at 8 Inch Diablo Canyon ISFSI Data Report E, Rev. 0 E-156 of 350

04-21calibration CALIBRATION FILE GENERATED BY RG - WINLOGGER for CALIPER LOG BOREHOLES: 01-D, 01-E, 01-H

[General]

LastModified=21/04/01 Sonde=3ACS SerialNo=3555

[Channel2]

LastCalibration=21/04/01 NextCalibration=21/04/01 Calibrationlnterval=0 days CalibrationMethod=Polynom Coefficient0=-7.281423804 Coefficient1 =0.001112347052 Coefficient2=0 Coefficient3=0 JigCount=2 ReferencePoint0=8344 CPS at 2 Inch ReferencePointl =11940 CPS at 6 Inch ReferencePoint2=13789 CPS at 8 Inch Diablo Canyon ISFSI E-1 57 of 350 Data Report E, Rev. 0

3ACS3555 04-23 CALIBRATION FILE GENERATED BY RG - WINLOGGER for CALIPER LOG BOREHOLES 01-B, 01-F, 01-E LOWER SECTION

[General]

LastModified=23/04/01 Sonde=3ACS SerialNo=3555

[Channel2]

LastCalibration=23/04/01 NextCalibration=23104/01 Calibrationlnterval=0 days CalibrationMethod=Polynom Coefficient0=-7.137665198 Coefficient1 =0.001101321586 Coefficient2=0 Coefficient3=0 JigCount=2 ReferencePoint0=8297 CPS at 2 Inch ReferencePointl =11929 CPS at 6 Inch ReferencePoint2=13789 CPS at 8 Inch Diablo Canyon ISFSI Data Report E, Rev. 0 E-158 of 350

04-24calibation CALIBRATION FILE GENERATED BY RG - WINLOGGER for CALIPER BOREHOLES: 01-A LOWER SECTION, 01-C

[General]

LastModified=24/04/01 Sonde=3ACS SerialNo=3555

[Channel2]

LastCalibration=24/04/01 NextCalibration=24/04/01 Calibrationlnterval=0 days Cal ibrationMethod=Polynom CoefficientO=-7.506685633 Coefficientl =0.001137980085 Coefficient2=0 Coefficient3=0 JigCount=2 ReferencePoint0=8354 CPS at 2 Inch ReferencePointl =11869 CPS at 6 Inch ReferencePoint2=13789 CPS at 8 Inch Diablo Canyon ISFSI Data Report E, Rev. 0 E-159 of 350

CALIBRATION FILE GENERATED BY RG - WINLOGGER for CALIPER BOREHOLE 01 -1

[General]I LastModified=28/04/0 1 Sonde=3ACS SerialNo=3555 LastModified=28/04/O1 Sonde=3ACS SerialNo=3555 channel=CALP Cal ibrationMethod=Polynom Coefficient0=-7. 84944564 Coefficienti =0.001239176197 Coefficient2=-5.827235083E-009 Coefficient3=0 JigCount=3 Reference Point0=8270 CPS at 2 Inch ReferencePointi =1 0036 CPS at 4 Inch Diablo Canyon ISESI Data Report E, Rev. 0 E-160 of 350

Appendix B INTERPRETED OPTV PLOTS Diablo Canyon ISFSI Data Report E, Rev. 0 E-161 of 350

OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG 07 May 2001 LETTIS PGE DCPP ISFSI Borehole: 01-CTF-A COMPLETE top of borehole.....

North ref. is true East:

Depth units are feet North:

Vertical scale: 1/8 A1S7 Horiz scale = vert scale Zone from 47.475 to 4.137ft Borehole diam: 4.000inch Vertical

= borehole-axis BEDDING FRACTURE N

E S

W N

01CTF.A COMPLETE Diablo Canyon ISFSI Data Report E, Rev. 0 Identified units SARROW PLOT COMMENTS S dips co rrected tor deyiatlcn 0*

20*

60° 90*

I 7 974 to

.- 17ft E-162 of 350 BOREHOLE DEVEATON 0

IO

07 May 2001 Cr7

ýý54F 0

-MA VIII APPENDICES A THROUGH C Diablo Canyon ISFSI Data Report E, Rev. 0 E-163 of 350

01 CTF.A COMPLETE Diablo Canyon ISFSI Data Report F, Rev. 0 N217 NJ274' N17.~

N204 0

N27P 7 N254 7 t4223 14.742 to 7.974ft E-164 of 350 4 Fracture Irregular 6 Fracure Irregular 67 Fracture Oiscortlruo 7Fracturelirregular 7 Fracture Irregular

  • 4 Fracture Discortnuru 1 rracture Discontinuo 4 Fracture Irregular 2

01 CTFA COMPLETE Diablo Canyon ISFSI Data Report E, Rev. 0

't 21 510 to 13,165 of 350 a

A.

07 Mey2001 Q65:

N151 S6 Fracture Planar N211 37 Fracture Planr

01 OTFýA COMPLETE Diablo Canyon ISFSI Data Report E, Rev. 0 E-166 of 350 (V b

01.CtF A COMPLETE Diablo Canyon ISFSI Data Report E, Rev. 0 N216 55 Fracture Irregular NZ11 45 Fracture Erre.Ldar N212 7O Fracture Erregular 35 046 to 28 278ft E-167 of 350

-a a

S a

07 May 2001

N232 25 Prmary.struoure prfqr N134 33 Primar structure P, N210 80 Fracture Discontinue 41 814to 35.040ft E-168 of 350 A

0 07 May 2001 (0 '

N250 55 Fracture Planar N205 51 Fracture Irregular 01 CTF-A COMPLETE Diablo Canyon ISFSI Data Report E, Rev. 0 47 475 to 41 84-ft E-169 of 350 07 May 2001 7

I.

S S

S

NOROPTV DATA PROCESSING RGLDIP vsn 5.3 o__........

INTERPRETED OPTV DIPS LOG LETTIS PGE Borehole: 01CTF-A DCPP ISFST top of borehole.....

N East:

D North:

V Ale 7 H

Zone from 55.449 to 46.878ft B

Vertical borehole-axis water orth ref. is true

'epth units are feet ertical scale: 1/8 oriz scale = vert scale orehole diam:

4.000inch BEDDING FRACTURE Identified units N

E S

W N

ARROW PLOT di0 s corrected for deviation Oo 20° 60° 90° Iffi

47 00.

48 00 49 0..

COMMENTS N075 73 Fracture Discontinuc OICTF A water Diablo Canyon ISFSI Data Report E, Rev. 0 50.715 to 46,878ft E-I70 of 350 L)

BOREHOLE DEVIATION 100 09 Jun 2001 I

51 00.

5 5200C La a

01rCT A water Diablo Canyon ISFSI Data Report E, Rev. 0 55 449 to 60.715ft E-171 of 350 09 Jun 2001 0 (9' N106 12 Pr~ma,,, structure I.,

N114 16 Primary structure rreular 53.00 54 O00

OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG 04 May 2001 LETTIS-PGE DCPP ISFSI Borehole: 01-A UPPER SECTION top of borehole.....

East:

North:

Al505 North ref. is true Depth units are feet Vertical scale: 1/8 Noriz scale -

vert scale Zone from 25.860 to 5.200ft Vertical

= borehole-axis Borehole diam:

4. 000inch BEDDING FRACTURE N

E S

W N

7..00 1

Identified units ASROW PLOT COMMENTS dips corrected for deviation 0o 20° 601 9 0 I

I I

0 10ý N188 42 Frture Planar NOSO 77 Fracture

-rregljar N330 36 Fracture Discontinuo 9.037 to 5200ff Diablo Canyon ISFSI Data Report E, Rev. 0 E-172 of 350

@ 10 NOFIAL*--A 04 May,001

01-A UPPER SECTION Diablo Canyon ISFSI Data Report E, Rev. 0 N222 N171 15 805 to 9 037ft E-173 of 350 5 37 Fracture Oiscontino

  • 38 Fracture Irregular 82 Fracture Irregular 31 Fracture Irrgular 04 May 2001 S

S

20 00.

O1 00 01-A UPPER SECTION Diablo Canyon ISFSI Data Report E, Rev. 0 N030 82 Fracture Irregular N289 1-aracture planar N231 67 Fracture Irregular N054 77 Fracture Irregular 22 573 to 15.805f E-174 of 350 04 May 2001

N2*6 54 Fracture Discontinue O1 A UPPER SECTION Diablo Canyon ISFSI Data Report E, Rev. 0 25 860 to 22.573ft E-175 of 350 25,00 V

4 4:

4 p

04 May 2001

A A OPTV DATA PROCESSING NORCAL RGLDIP vsn 5.3 17 May 2001 S.....

INTERPRETED OPTV DIPS LOG LETTIS PG&E Borehole: 01-A (LOWER)

DCPP ISFSI top of borehole.....

North ref. is true East:

Depth units are feet North:

Vertical scale:

1/8 A1805.7 Horiz scale = vert scale Zone from 69.100 to 29.376ft Borehole diam:

3.996inch Vertical borehole-axis BEDDING I l F

Identified units S....

FRACTURE ARROW PLOT dips co rrected for deviation S

W N

20

60. 90.

I I

0 N1526

  • I N1S2C 01-A (LOWER) 33,218 to 29 3716ft Diablo Canyon ISFSI E-176 of 350 Data Report E, Rev. 0 cOMMENTs

]

71 Fracture [rreguFar 76 Fracture Irregular 68 Fracture Irregular 0

BORCHOLE DEVIATION 0

i0

17 May 2001 F_

  • I 35 00 36 00 3.00 39 00.

01 A (LOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 N229 36 Fracturo Platnar HairrLwo.frattLre N203 S6 Fracture Irregurar D N093 74 Fracture Irregular 39.981 to 33213ft E-177 of 350 0

/

P A

/

t.....

us

/~

17 May 2001

Lr 01 00 42.00 01 A (LOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 46 749 to 39 981t E-178 of 350 CIQ N243 24 Fracture irregular N251 32 Fracture Irregular N271 20 Fracture Oiscontinuo N225 35 Fracture Planar N039 4*

Fracture Irregular 44.00 45 00 46 00 p

p 7

p I

7

7.

7 Fracture one 0

L.

4

48 00 51.00 52.00.

01-A (ýLOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 r

NO55

  • N194 N182

~N243, N184 53.517 to 46ý749ft E-179 of 350 34 1--cturerreguhs 29 Fracture SFanar 64 Fracture Irregu~nr 68 Fracture 69 Fracture K.

I.

17 May 2001

((7

I 01-A (LOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 N021 7 Primary.structure COt o226 27 Fracture irregular D ontbruus N3O1 49 Fracture Pian-r N257 38 Fracture Irregular N200 60 Fracture Discontinuo N199 50 Fracture plar N265 65 Fracture I.rr.gular NO09 36 Fractre Irregular N259 22 Fracture Irregular N182 47 Fracture pla*rar Fre 60 285 t. 53 517ft E-180 of 350

  • I TACT a

/

9 p

a 17 May 2001 0, f

`6 01 A (LOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 62 00.

I S

N252.0 Fracture lrre*La.r

1.

N354 19 Fracture Planar MnOP'C 66 7.8 to 60 00Cr E-181 of 350 p

a 17 M.y 2OO1 N171 45 Frrnture Irregular N275 72 Fractujre Discont-Luous NOSS 44 Fracture Irregular N213 45 Fracture Irrgurar N256 12 Fracture Planar ZOR c

1 lo N232 56 Fracture.iscontinuous E,00.

65.00 c.OSa

9 N235 77 Fracture Discortinuouis N240 61 Fraoture Irregular Fracture zone N26e4 70 Fracture Irregular 01 A (LOWER)

Diablo Canyon ISFSI Data Report E, Rev. 0 69.150 to 66.780ft E-182 of 350 69,00 17 May 2001

NOACAL

OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG 17 May 2001 LETTIS and PG&E Borehole: 01 A REPEAT DCPP ISFSI top of borehole.....

North ref. is true East:

Depth units are feet North:

Vertical scale: 1/8 Al*65.7 Horiz scale -

vert scale Zone from 69.132 to 49.000ft Vertical borehole-axis Borehole diam:

4. 000inch BEDDING FRACTURE Identified units N

E S

W 5O00 5t 0G.

ARROW PLOT d020 corr0te 0

for deviattor Oo 2O° 60*

90*

(OWA REPEAT Diablo Canyon ISFSL Data Report E, Rev. 0 52 837 to 49 O00Oft E-183 of 350 COMMENTS

OREHOLC tJVIAtlON 0

1o

I, A

A

/

S S

tlzi II

@5 55ý00.

p S

5600.

/0 57,00 57,00.

O1.

REEAT59.605 to 52,837ft 17 Mvay 2001 Diablo Canyon ISFSI E-1 84 of 350 Data Renort E-Rev 0

62.00 01.A REPEAT Diablo Canyon ISFSI Data Report E, Rev. 0 66 373 to 59 605ft F-185 of 350 2'

17 May 2001

68,00.

69ý00>

01A REPeAT Diablo Canyon ISFSI Data Report E, Rev. 0

[

69132 to 66 373ft E-186 of 350 9

I.

0 0

U

-A OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG ROBERTSON GEOLOGGING TECHNOLOGY Borehole: 01-B DCPP ISESI top of borehole.....

N East:

Di North:

Vi Alf22 H'

Zone from 69.447 to 5.316ft B

Vertical

- borehole-axis BEDDING Iden FRACTURE 04 May 2001 orth ref. is true epth units are feet ertical scale: 1/8 oriz scale -

vert scale orehole diam: 4.000inch tified units N

E S

W N

I I

I 7 CO-.

ARROW PLOT dips corrected for deviation Oo

20.

60=

90 COMM NTS mll

ffi

N170 21 P-rar structure 01 e Diablo Canyon ISFSI Data Report E, Rev. 0 9.153 to 5 316fk E-187 of 350 I

0° 10o 04 May 2001 j.

F L

I N229 66 Fracture [rretgular NZ1X 12 Fracture Irregular N209 29 rracture Irregular Diablo Canyon ISFf Data Report E, Rev.

15921 to 9, 153ft 04 May 2001 si E_18 8 of 350 N305 59 Fracture rregular a

I N326 26 Fractu.re planar NISO 28 Fracture Planar N199 33 Fracture Irregula o243 76 rracturo Discontnluos 2y.689 to 150921f nvon ISFSJ E1-189 of 350 20 00.

Diablo Cai Data Report E, Rev. 0 04 May 2001 N273 29 Fracture rreeular

j r

Diablo Canyon ISFSI Data Report E, Rev. 0 I

L N163 3

-rr.cture 1rregular N260 63 Fracture Disoontir N259 41 Fracture Discontmn N257 83 Fracture Irregul.

N277 28 Fracture Discortin' 294 57 to 22 689ft E-190 of 350 I: *...!

  • 0
  • H ifn,t*tr
  • ~

s S,

Jo t0S.

OlDB a.y 2001

K 36.225 to 29 E-191 of 350 Diablo Canyon ISFSI Data Report E, Rev. 0 3000 31 00 457ft N260 36 Fracture Irregular N140 10 rracturte DisoorntiruohasHairIrno.

S N258 22 r'racture *rreular S

S N266 61 Fracture Irrernalar S

S S0 SI 04 May 2001 U

N276 7 Prima structur. PI N214 62 Fracture Irregular H

01.a Diablo Canyon ISFSI Data Report E, Rev. 0 42 993 to Se 225P E-192 of 350 R* edd[rn*

K jlrnetfractu 04 May 2001

N171 23 rr-cture Planar N194 36 Fracture Planar Diablo Canyon ISFSI Data Report E, Rev. 0 E-193 of 350

'231/

4400.

45ý00.

47,00 48 00.

49.00 4

Ki S

04 May 2001

I 56 529 to 49 Diablo Canyon ISFSI E-194 of 350 Data Report E, Rev. 0 50,00 04 May 2001 0

0 51 00 01-8

5900 Diablo Canyon ISFSI Data Report E, Rev. 0 N 179 24 Fracture Dsotnl9 N2S6 SO Fracture Irregular SI S

SO

-S N33222 Factue DieontnuoS 63.297 to 56.529 "t

E-195 of 350 S

S S

S S

S S

04 May 2001

N1298 5 Primary structure hrre N237 60 Fracture Discont[nuo o250 69 Fracture Irregular

ýt245 42 Fracture planar N081 68 Fracture Disco.rtrnu N215 72 Fracture Irregular

Ljr V.

IS a

a a

a a

S a

Is.

a a

a a

a a

a a

a a

a a

01-n Diablo Canyon ISFSI Data Report E, Rev. 0 69 447 to 63S297ft E-196 of 350 04 May 2001 C 3R 63.00.

69 00

OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG 02 May 2001 LETTIS -

PG&E Borehole: 01-C DCPP ISFSI top of borehole.....

East:

North:

Al823 North ref. is true Depth units are feet Vertical scale: 1/8 Horiz scale -

vert scale Zone from 65.448 to 7.659ft Vertical = borehole-axis Borehole diam:

4. 000inch BEDDING FRACTURE

-, Identified units N

E S

w N

01,C Diablo Canyon ISFSI Data Report E, Rev. 0 ASOW PLOT

0.

20o 6..

9w 11,496 to 7 659N E-197 of 350 BOEOoE DEJTO 10.]

SI 7

2/

02 Mny ZO01 C i NORCAL;

a F

2 00-01 C Diablo Canyon ISFSI Data Report E, Rev. 0 S

A A

A A

A A

A S

18.264 t. 11 49eft E-198 of 350 02 May 2001 03ý N187 60 Fracture Planar N214 51 Fracture Planar N18B4 50 Fracture Hairhne-fn N22L1 13 Fracture N178 38 Fracture

.rrglar t197 15 Fracture Planar

Diablo Canyon ISFSI Data Report E, Rev. 0 N249 60 Fracture N182 47 Fracture rregular hJ2lS 7* Fracture Irregular Ný224 40 Fracture [rre1u-r N213 66 Fracture rregular N326 29 Fr-cture rr.egLar N226 59 Frature

.reular 25 032 to r.iSSOý E-199 of 350 02 May 2001 Ct' k

.flý I II'll0

'7,00-O0 C Diablo Canyon ISFSI Data Report E, Rev. 0 N232 6 N1764 NS12 3:

N250 4:

0 N239 5(

N236 7 N206 34 N345 52 N235 2.

o N176 4 N24ý 36 31.8O0 to 25.032ft E-200 of 350 0 rcueIrglrF 3Fracture Fracur-z I Fracture lrregular Fracture Fracture z.

Fracture Planar rratur fli...ntenuoi A

A A

A A

S fleA A

A 02 May 2001 (2%

5 Fracture Fracture.

.5Fracure Irreguiar 2 Fracture Hairlnfr 5 Fracture.

-airrin" f ]

r*

A fleA A

A.

A me.

A A

A A

A A

A A

A A

A A

ct&e zone A

C S

A A

l.

01 C Diablo Canyon ISFSI Data Report E, Rev, 0 N20. 16 Fracture erineralie-N186 57 Fractureirregular D

as.568 to 31,800,,

E-201 of 350 N251 72 Fracture Irregular N226 32 Fracture Irregular N241 36 Fracture Irregular D N239 71 Fracture DIscofntlo N218 33 Fracture Discontinuo N229 43 Fracture Planar N214 1.

Color change N221 71 Fracture Discontinuo 02 May 2001 S

A A

S A

S A

A A

ctjnuous A

A A

A A

K.

Is A A

-A A

A A

A

-S A

A A

A A

A A

A A

A

'A A

S A

contentious A

A A

A a

0.00.

100.

Diablo Canyon ISFSI Data Report E, Rev. 0 45 E-202 336 to of 350 38568ff 64't N226 S5 color charge N203 38 Frature N226 27 color chane N201 35 Fracture Irreguar

-4 A

A A

-4

-4

-4

-4

-s A

A A

A A

A A

A A

A

-4 A

A A

Ct L to o He

-A A

A A

A A

A A

-S A

p Diablo Canyon ISFSI Data Report E, Rev. 0 7,00 S oo N 1071 N239 46 S

N047 7 N271 34 0

N2376 62.104 to 45,336C E-203 of 350 1 Fracture rreguar Fracture Irregular Fracture Irregular Fracture Dis-ontinuo Fracture Irregular 33 Fracture [rregular F 8 Fracture Irro~uiar rr A

A S

A A

A A

-s A

A A

A A

-9

-as

-S 02 May 2001 Q' y I A

S qt&e Otis A

A A

A A

A A

A A

A A

A S

A ct rezone A

A A

A A

7)

A,



J T

Diablo Canyon ISFSI Data Report E, Rev. 0 0

0 N285 49 Fracture Irregular N195 43 Fracture rreguhar F

58.872 to 52 104ft E-204 of 350 A

A A

A A

A A

A A

A S

A A

0 A

A A

A A

A A

A A

A 4

A A

4 A

A cturezo0e A

A A

A Etc'2 02 May 2001 HE

N222 55 Fracture Irregular N246 63 Fracture orrgL.ar D N251 27 Fracture I-reular N229 29 F-racture Planar Diablo Canyon ISFSI Data Report E, Rev. 0

ý5 448 to 58.872ft E-205 of 350 A

A A

S S

A A

A

-s A

A

-s A

A A

A

cart'ruous A

A A

A A

A A

A A

a A

A A

A

-A A

A A

A A

A A

0 1

02 May 2001 EyL.3

NORCAL OPTV DATA PROCESSING RGLDIP vsn 5.3 INTERPRETED OPTV DIPS LOG 20 May 2001 LETTIS AND PG&e DCPP ISFSI Borehole: 01-C REPEAT top of borehole.....

North ref. is true East:

Depth units are feet North:

Vertical scale: 1/8 A1S23 Horiz scale = vert scale Zone from 65.409 to 45.029ft Borehole diam: 4.000inch Vertical - borehole-axis BEDDING FRACTURE ARROW PLOT dips corrected for deviation N

E N

0 20 60 90 a.F 46 00.

4700

- Identified units

0REH0LE DEVIATION 0

10

A 4

A A

A A

A A

A A

A A

A A

A A

A A

A A

A

-A A

A 010C REPEAT Diablo Canyon ISFSI Data Report E, Rev. 0 48 866 to 45029.f E-206 of 350 C

ý4'

-1

01.0 REPEAT Diablo Canyon ISFSI Data Report E, Rev. 0 55.34 to 48.86of E-207 of 350

-A I:l Ab 20 May 2001 C *S-

01 C REPEAT Diablo Canyon ISFSI Data Report E, Rev. 0 62.402 to 55.634ff E-208 of 350

-S A

A A

-A AJ

-S A4 A0 A0 Ae A0 A

AO S4 20 May 2001 CLt/P(

6O400 010C REPEAT Diablo Canyon ISFSI Data Report E, Rev. 0 65 409 to 62 402ft E-209 of 350

-a S

-A S

-S A

A A

A S

S 20 May 2001 6V7