DCL-14-081, Diablo Canyon Units 1 and 2, Central Coastal California Seismic Imaging Project (Cccsip) Chapter 10, Fugro.PGEQ-PR-16 R1 Figures Incl App A-B 08-05-14

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Diablo Canyon Units 1 and 2, Central Coastal California Seismic Imaging Project (Cccsip) Chapter 10, Fugro.PGEQ-PR-16 R1 Figures Incl App A-B 08-05-14
ML14260A056
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Site: Diablo Canyon  Pacific Gas & Electric icon.png
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Project Organizational ChartDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 1-1 K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report PG&E GeosciencesQA ProgramDCPP QA andDCPP ProcurementFCL QA ManagerFCL Project ManagerFCL Senior Vice President Nuclear ServicesFCL QA Nuclear Program AdministratorOffshore Technical DirectorOnshore Technical Director Geophysical Subcontractors Software V&V Equipment Calibration In Process Surveillance Geophysical Subcontractors Clint EldridgeJeff BachhuberTechnical ManagerDr. Stu NishenkoFCL Deputy Project Manager Bruno Protti William Godwin Marthe ParvinDr. Phil HoganDr. Dan O'Connell

!A!A!A!A SLO2 Lower Quail Flat Parking Lot 10Water Tank Parking Lot 8 DDH-B DDH-D DDH-C DDH-A-2 A-A'D-D'C-C'B-B'120°51'W 120°51'W 120°52'W 120°52'W 35°14'N 35°14'N 35°13'N 35°13'NMap projection and scale: NAD 83 State Plane CA Zone V, 1:12,00005001,000 ft.0200400 mImagery from NAIP (2009).

3D Tomography Source and Receiver LocationsDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 2-1K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report SAN LUIS OBISPO COUNTYLos OsosAvilaBeachSan Luis Obispo Area of Figure 2-2

!A Downhole log location (1978)

")Alternative velocity location

!Source location

!Receiver location ProfilePACIFIC OCEAN Figure extentEXPLANATION

!A!A!A!A SLO2 Lower Quail Flat Parking Lot 10Water Tank Parking Lot 8 DDH-B DDH-D DDH-C DDH-A-2 A-A'B-B'D-D'C-C'120°51'W 120°51'W 120°51'30"W 120°51'30"W 35°13'N 35°13'N 35°12'30"N 35°12'30"N

!A!A!A!A DHH-4 DHH-3 DHH-2 DHH-1 0 500 1,0000100200 m ft.Imagery from NAIP (2009).Map projection and scale: NAD 83 State Plane CA Zone V, 1:6,600Los OsosAvila BeachSan Luis Obispo SAN LUIS OBISPO COUNTY!Containment structure centerpoint (100-ft spacing points along profile

!A Downhole log location (1978)

"

)Obispo velocity location

!Source location

!Receiver location Borehole location (Blume, 1968)

!A Profile Boundary of 3D velocity outputPACIFIC OCEAN Figure extent 2012 Phase 1 DCPP 3D Survey Source and Receiver Locations - Site AreaDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric CompanyK:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 Figure 2-2 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey ReportEXPLANATION

^_!!!!DDH-BDDH-D DDH-C DDH-A-2 120°51'W 120°51'W 120°51'30"W 120°51'30"W 35°13'N 35°13'N 35°12'30"N 35°12'30"N2012 Phase 1 DCPP 3D Survey Source and Receiver Locations DetailDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 3-1 K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 Zland receiver locations Sigma receiver locations

Seistronix receiver locations Vibroseis source locations Borehole location of the 1978 investigations DDH-C 2012 Phase 1 DataEXPLANATIONDCPP 0 0.25 0.5 mi 0 0.25 0.5 kmMap projection and scale: NAD 83 State Plane CA Zone V, 1:11,000PACIFIC OCEAN PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Residual fractal range 200-foot offset bins Mean bin residual Median Bin residualOffset (feet)

Note: 22700351 first break picks: mean residual =-8.08 ms, standard deviation = 25.26 ms Figure 3-2 2011 and 2012 Phase 1 Joint Travel-Time-Gravity Inversion Residual Distribution Pacific Gas and Electric CompanyDCPP FOUNDATION VELOCITY REPORT K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Residual fractal range 100-foot offset bins Mean bin residual Median Bin residualOffset (feet)

Note: 9,172,512 first break picks: mean residual =-1.20 ms, standard deviation = 8.91 ms Figure 3-3 2012 Phase 1 Offset <15,000-Foot Travel-Time-Inversion Residual Distribution Pacific Gas and Electric CompanyK:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16DCPP FOUNDATION VELOCITY REPORT PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Residual fractal range 100-foot offset bins Mean bin residual Median Bin residualOffset (feet)

Note: 6,380,553 first break picks: mean residual =-0.66 ms, standard deviation = 7.02 ms.

1,000 2,000 3,000 Figure 3-4 Pacific Gas and Electric Company 2012 Phase 1 Offset <3,000-Foot Travel-Time-Inversion Residual DistributionK:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16DCPP FOUNDATION VELOCITY REPORT PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report DDH-1 0 5 10 15 20 25 30 Uphole time (ms) 50 40 30 20 10 0 Depth (feet)

DDH-2 0 5 10 15 20 25 Uphole time (ms) 50 40 30 20 10 0 Depth (feet)

DDH-3 0 5 10 15 20 25 Uphole time (ms) 50 40 30 20 10 0 Depth (feet)

DDH-4 0 5 10 15 20 25 30 Uphole time (ms) 50 40 30 20 10 0 Depth (feet)

Model S time EXPLANATION Picked S time Model P time Picked P time Note: See Figure 2-2 for borehole locations.

Blume and Associates (1969)

Downhole Travel TimesDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 4-1K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Sigma northeast PASigma northwest PASigma southwest PA Seistronix cable 3 central east Seistronix cable 3 northeast Seistronix cable 3 southeastSourceReceiver 120°51'15"W 120°51'15"W 120°51'20"W 120°51'20"W 120°51'25"W 120°51'25"W 35°12'45"N 35°12'45"N 35°12'40"N 35°12'40"N050100 ft.m 02040Map projection and scale: NAD 83 State Plane CA Zone V, 1:1,200Imagery from TetraTech (2010).Avila BeachLos Osos SAN LUIS OBISPO COUNTY These sources are used by more than one group of receiversPACIFIC OCEAN Figure extent DCPP Source-Receiver PairsDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-1 Phone 17 Phone 0 Phone 14 Phone 0 Phone 0 Phone 23K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey ReportEXPLANATION 4000 4000 6500 6500 9000 9000 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17050100150200250 Distance (feet)

-20 0 20 40 60 80 100 Elevation (feet) 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 Cable 3 East, NE segment, 120 WET iterations, RMS error 3.7%, 1D-gradient smooth initial model, Version 3.25 Velocity (ft/sec)South North Notes:Scaled at 2 times vertical exaggeration.

See Figure 5-1 for profile locations.

2D Rayfract Vp Models and Ray CoverageDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-2K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Seistronix northeastSeistronix central eastSeistronix northeastSigma northeastSigma northwestSigma southwest 100 200 300 400 500 140 120 100 80 60 40 20 0 Time (ms)100 200 300 400 500 140 120 100 80 60 40 20 0 50 100 150 200 250 300 Offset (feet) 140 120 100 80 60 40 20 0 Time (ms)50 100 150 200 250 300 140 120 100 80 60 40 20 0 50 100 150 200 140 120 100 80 60 40 20 0 Time (ms)50 100 150 200 140 120 100 80 60 40 20 0 100 200 300 400 Offset (feet) 140 120 100 80 60 40 20 0 100 200 300 400 140 120 100 80 60 40 20 0 Time (ms)100 200 300 140 120 100 80 60 40 20 0 Time (ms)100 200 300 140 120 100 80 60 40 20 0 50 100 150 200 250 300 350 Offset (feet)

Offset (feet)

Offset (feet)

Offset (feet) 140 120 100 80 60 40 20 0 Time (ms)50 100 150 200 250 300 350 140 120 100 80 60 40 20 0 DCPP Receiver-Group Offset StacksDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-3K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report 1D Lateral Depth Averages of 2D Vp and 3D Vp Compared with 1D Vp-DepthDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-4K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Sigma northeastSigma northwestSigma southwestSeistronix northeastSeistronix central eastSeistronix southeast 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 23 of 23 records 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s) 20 40 60 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 20 of 20 records 20 40 60 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s) 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 30 of 30 records 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s) 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 18 of 18 records 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s) 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 7 of 7 records 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s) 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m)

FCL IMASW Version 2.1.0: First to last stack of 7 of 7 records 10 20 30 40 Frequency (Hz) 0.001 0.002 0.003 0.004 0.005 Slowness (s/m) 1000 500 333 250 200 Phase velocity (m/s)

DCPP Surface-Wave DispersionDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-5K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Southwest_PA_sigma 5 10 15 20 25 30 35 40 Frequency (Hz) 200 400 600 800 1000 1200 Velocity (m/s)

Observed phase Model phase Observed slow phase 0 20 40 60 80 100 0 1000 2000 3000 4000 S-wave velocity (m/s) 0 100 200 300 Depth (ft) 0 2 4 6 8 10 12 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 Northwest_PA_sigma 6 8 10 12 14 16 Frequency (Hz) 650 700 750 800 850 900 950 Velocity (m/s)

Observed phase Model phase Observed slow phase 0 20 40 60 80 100 120 0 1000 2000 3000 4000 S-wave velocity (m/s) 0 100 200 300 400 Depth (ft) 0 2 4 6 8 10 12 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 Northeast_PA_sigma 10 15 20 25 30 35 Frequency (Hz) 500 600 700 800 900 1000 Velocity (m/s)

Observed phase Model phase Observed slow phase 0 20 40 60 Depth (m)0 1000 2000 3000 4000 S-wave velocity (m/s) 0 50 100 150 200 250 Depth (ft) 0 2 4 6 8 10 12 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 Depth (m)Depth (m)Seistronix_Cbl-3-East_South_segment 5 10 15 20 25 Frequency (Hz) 350 400 450 500 550 600 Velocity (m/s)

Observed phase Model phase Observed slow phase 0 20 40 60 80 Depth (m)0 1000 2000 3000 4000 S-wave velocity (m/s) 0 50 100 150 200 250 300 Depth (ft) 0 2 4 6 8 10 12 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 Seistronix_Cbl-3-East_Central_segment 0 20 40 60 80 Frequency (Hz) 200 300 400 500 600 700 Velocity (m/s)

Observed phase Model phase Observed Slow Phase 0 20 40 60 80 Depth (m)0 500 1000 1500 2000 S-wave velocity (m/s) 0 50 100 150 200 250 300 Depth (ft) 0 1 2 3 4 5 6 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 Seistronix_Cbl-3-East_North_segment 5 10 15 20 25 30 Frequency (Hz) 300 400 500 600 700 800 Velocity (m/s)

Observed phase Model phase Observed slow phase 0 20 40 60 80 100 Depth (m)0 1000 2000 3000 4000 S-wave velocity (m/s) 0 50 100 150 200 250 300 Depth (ft) 0 2 4 6 8 10 12 S-wave velocity (kft/s)

Mean of 21 best models Median of 21 best models Final ~1 Likelihood ~1 Chi-squared ~1 1D Vs-Depth Models From Inversion of Surface Wave DispersionDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-6K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Seistronix northeast 0 500 1,000 1,500 2,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)Sigma northeast 0 500 1,000 1,500 2,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)Seistronix central east 0 500 1,000 1,500 2,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)Sigma northwest 0 500 1,000 1,500 2,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)Seistronix southeast 0 500 1,000 1,500 2,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)IMASW Vs 3D Vs Sigma southeast 0 500 1,000 1,500 2,,000 Vs (m/sec) 50 40 30 20 10 0 Depth (m)Comparison of IMASW Vs Depth with GeoTomo 3D Vs DepthDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-7K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Vs travel-time ratio 50 40 30 20 10 0 Depth (feet)

Model is fast Model is slow EXPLANATION 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Vp travel-time ratio 50 40 30 20 10 0 Depth (feet)

Model is fast Model is slow DDH-4 DDH-3 DDH-2 DDH-1 Log mean DCPP Slower-Vp Model / Blume and Associates (1969) Model Velocity RatiosDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 5-8K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report GeoTomo Vs Profile A-A' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)

GeoTomo Vs Profile B-B' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)

GeoTomo Vs Profile C-C' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)

GeoTomo Vs Profile D-D' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)0 5708783.8 2276047.7 92.4100 5708821.9 2275955.2 91.2200 5708859.9 2275862.8 85.9300 5708898.0 2275770.3 86.3400 5708936.0 2275677.8 90.1500 5708974.1 2275585.3 98.9600 5709012.1 2275492.8 98.5700 5709050.1 2275400.4 98.5800 5709088.2 2275307.9 89.1900 5709126.2 2275215.4 86.41000 5709164.3 2275122.9 86.31100 5709202.3 2275030.4 87.41200 5709240.4 2274938.0 87.2SiteEast (ft.)North (ft.)Elev. (ft.)SiteEast (ft.)North (ft.)Elev. (ft.)0 5708634.0 2275986.1 59.6100 5708672.1 2275893.6 86.3200 5708710.1 2275801.1 87.0 300 5708748.1 2275708.7 87.0400 5708786.2 2275616.2 87.0500 5708824.2 2275523.7 87.3600 5708862.3 2275431.2 87.2700 5708900.3 2275338.7 87.4 800 5708938.4 2275246.3 87.3900 5708976.4 2275153.8 87.41000 5709014.5 2275061.3 87.01100 5709052.5 2274968.8 87.31200 5709090.6 2274876.3 87.5900 5709318.7 2275793.7 187.3800 5709226.2 2275755.7 147.1700 5709133.7 2275717.6 116.5600 5709041.2 2275679.6 108.7500 5708948.8 2275641.6 96.7400 5708856.3 2275603.5 87.2300 5708763.8 2275565.5 87.1200 5708671.3 2275527.4 86.9100 5708578.8 2275489.4 86.30 5708486.4 2275451.3 87.0SiteEast (ft.)North (ft.)Elev. (ft.)0 5708609.3 2275152.4 72.8100 5708701.8 2275190.4 87.0200 5708794.3 2275228.5 87.1300 5708886.8 2275266.5 87.0400 5708979.3 2275304.6 87.3500 5709071.7 2275342.6 95.0600 5709164.2 2275380.7 109.6700 5709256.7 2275418.7 117.0800 5709349.2 2275456.8 149.2900 5709441.7 2275494.8 199.9SiteEast (ft.)North (ft.)Elev. (ft.)

Note: See Figure 2-2 for profile locations.

DCPP Vs Depth Profiles Along Transects A-DDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure 6-1K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report 2.0E10 3 4.0E10 3 3 8.0E10 3 1.0E10 4 1.2E10 4 1.4E10 4 1.6E10 4 Vp (ft/sec)

-300-200-100 0 100 200 300 Elevation (feet) 1,000 2,000 3,000 4,000 Vp (m/sec)

-50 0 50 100 Elevation (m)SLO2 Intersection 5708352.7 2276561.6 141.2Parking Lot 8 5710480.6 2274246.5 190.4Parking Lot 10 5710763.7 2276594.0 308.6Lower Quail Flats 5708951.4 2277201.1 341.4Water Tank 5710589.6 2277464.1 331.0 SiteEast (ft.)North (ft.)Elev. (ft.)

Note: See Figure 2-2 for profile locations.

Figure 6-2 GeoTomo Vp-Elevation Profiles from Five Obispo Formation Sites Pacific Gas and Electric CompanyDCPP FOUNDATION VELOCITY REPORT K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey ReportPower block basement (elev. 52.7 ft.)

1,000 2,000 3,000 4,000 5,000 6,000 Vs (ft/sec)

-300-200-100 0 100 200 300 Elevation (feet) 500 1,000 1,500 Vs (m/sec)

-50 0 50 100 Elevation (m)SLO2 Intersection 5708352.7 2276561.6 141.2Parking Lot 8 5710480.6 2274246.5 190.4Parking Lot 10 5710763.7 2276594.0 308.6Lower Quail Flats 5708951.4 2277201.1 341.4Water Tank 5710589.6 2277464.1 331.0 SiteEast (ft.)North (ft.)Elev. (ft.)Water Tank 1458Lower Quail Flats 1249Parking Lot 10 1203Parking Lot 8 709SLO2 Intersection 817 Vs30 from 62 Ft Above Sea Level (m/s)Water Tank 438Lower Quail Flats 440Parking Lot 10 479Parking Lot 8 478SLO2 Intersection 429 Surface Vs30 (m/s)

Note: See Figure 2-2 for profile locations.

Figure 6-3 Pacific Gas and Electric CompanyDCPP FOUNDATION VELOCITY REPORT Vs Elevation Profiles from Five Obispo Formation Sites Using Vp/Vs=2.45K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey ReportPower block basement (elev. 52.7 ft.)

FUGRO CONSULTANTS, INC.

Foundation Velocity Report PR No.: PGEQ

-PR-16 Revision:

1 Page A 1 of A3 APPENDIX A DCPP 3D Velocity Model Electronic Files Three DCPP 3D velocity models are provided in a text format to ensure that the files can be inspected with a standard text editor. The files contain all the geographic and velocity information as ASCII text. Coordinates are in North American Datum of 1983 (NAD 83) State Plane Zone 5 meters. Coordinates and velocities are provided in meters and meters/second.

The three files are as follows

slower_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt faster_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt GeoTomo_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt The file faster_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt contains the faster estimates of shallow Vp velocity that are probably closer to current DCPP conditions than the file slower_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt that contains slower shallow Vp that correspond more to a pre

-construction foundation condition. A minimum Vp corresponding to a saturated soil condition (Vp=1

,600 m/s) is imposed below mean sea level when original 3D Vp is <1

,600 m/s. The original GeoTomo Vp in the GeoTomo_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt file has been modified to enforce the Vp=1

,600 m/s saturation condition below sea level.

Cell x and y coordinates correspond to cell centers

, and cell elevations refer to the top of the cell. The original GeoTomo 3D velocity model started at an elevation of 2

,107 feet above mean sea level to account for topography. Consequently, all elevations fall on 2

- or 7-foot steps in the righ t-hand digit because the vertical cell size is 5 f eet. All elevations are rounded to the closest cell top elevation.

The file format uses text lines above data to document the data following the text line. To illustrate the forma t , the first several lines of the following file are reproduced below with line numbers preceding each line of file context:

faster_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt Example first 11 lines of file format

Line 1: Cell

-centered draft DCPP Vp and Vs velocity grid with units in meters and meters/second Line 2: Cell

-centered NAD 83 State Plane Zone 5 lower

-left origin in meters Line 3: 1739470.8 693153.31 Line 4: Horizontal constant

-velocity cell size in meters Line 5: 15.2400 Line 6: Vertical constant-velocity cell size in meters

FUGRO CONSULTANTS, INC.

Foundation Velocity Report PR No.: PGEQ

-PR-16 Revision:

1 Page A 2 of A3 Line 7: 1.52400 Line 8: Number of vertical velocity profiles Line 9: 2695 Line 10: Number of elevation points in each velocity profile Line 11: 124 The entire sequential lists of text lines without the intervening data are produced below:

Cell-centered draft DCPP Vp and Vs velocity grid with units in meters and meters/second Cell-centered NAD 83 State Plane Zone 5 lower

-left origin in meters Horizontal constant

-velocity cell size in meters Vertical constant

-velocity cell size in meters Number of vertical velocity profiles Number of elevation points in each velocity profile Elevation values in meters (positive above sea level) of velocity cell tops (124 points) Distance east from lower

-left cell center to each x,y cell center in meters (2

, 695 points) Distance north from lower

-left cell center to each x,y cell center in meters (2

, 695 points) Vp value that indicates an elevation sample is above topography Vs value that indicates an elevation sample is above topography Vp elevations profiles in meters/second (2

,695 lines with 124 velocity values per line) Vs elevations profiles in meters/second (2

,695 lines with 124 velocity values per line) The example Interactive Display Language (IDL) command set below illustrates an approach to read a DCPP 3D velocity file:

str= ifile='slower_vp_rev3_draft_dcpp_3d_foundation_velocity_grid.txt'

openr,unit1,ifile,/get_lun

readf,unit1,str readf,unit1,str xorigm=0d0

yorigm=0d0 readf,unit1,xorigm,yorigm readf,unit1,str hcellsizem=0d0 readf,unit1,hcellsizem readf,unit1,str

FUGRO CONSULTANTS, INC.

Foundation Velocity Report PR No.: PGEQ

-PR-16 Revision:

1 Page A 3 of A3 zcellsizem=0d0 readf,unit1,zcellsizem readf,unit1,str nn=0L readf,unit1,nn readf,unit1,str nelevs=0L readf,unit1,nelevs sizm=fltarr(nelevs) readf,unit1,str readf,unit1,sizm readf,unit1,str dxm=fltarr(nn) readf,unit1,dxm readf,unit1,str dym=fltarr(nn) readf,unit1,dym vpnull=0. readf,unit1,str readf,unit1,vpnull vsnull=0.

readf,unit1,str readf,unit1,vsnull vpn=fltarr(nelevs,nn) readf,unit1,str readf,unit1,vpn readf,unit1,str vsn=fltarr(nelevs,nn) readf,unit1,vsn close,unit1

free_lun,unit1 Figure A1 shows the geographic extent of the 3D foundation velocity model shown in 3D map view in Figure A2 and the depth profile location shown in Figure A3. Figures A2 and A3 illustrate how the 3D model will appear when read correctly. Figure A 2 shows a FLAC3D rendering of the model topography. Figure A3 shows a 2D elevation Vs west-to-east cross section 381 m north of the south end of the model.

120°51'W 120°51'W 120°51'30"W 120°51'30"W 120°52'W 35°13'N 35°13'N 35°12'30"N 35°12'30"NVelocity Model Location MapDCPP FOUNDATION VELOCITY REPORT Pacific Gas and Electric Company Figure A1 K:\Projects\79_225400_PGE_WE2_Onshore_2011_Ph1_Processing\05_Graphics\PR-16Imagery from NAIP (2009).05001,000 ft.0100200 mMap projection and scale: NAD 83 State Plane CA Zone V, 1:12,000DCPP 3D foundation velocity model extent ProfileLos OsosAvila BeachSan Luis Obispo SAN LUIS OBISPO COUNTYPACIFIC OCEAN Figure extent PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Elevation (m) 94 80 60 40 20-20-40

-60 90 Sea level Note: See Figure A1 for model location.

Figure A2 Pacific Gas and Electric CompanyDCPP FOUNDATION VELOCITY REPORT DCPP FLAC 3D Model (Jigsaw Model)

PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report Vs (m/s)West Note: See Figure A1 for model location.

Contour of Gp Extra 5 East Figure A3 Pacific Gas and Electric CompanyDCPP FOUNDATION VELOCITY REPORT Vs Profile @ Y of 381 m (South End of Plant Area)

PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report FUGRO CONSULTANTS, INC.

Foundation Velocity Report PR No.: PGEQ

-PR-16 Revision:

1 APPENDIX B DCPP VS-DEPTH PROFILES ALONG TRANSECTS A

-D (Total 4-Figures)

CENTRAL COASTAL CALIFORNIA SEISMIC IMAGING PROJECT Pacific Gas and Electric Company Figure B-1 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Reportfwla-lk-file/DATA/Projects/79_225400_PGE_WE2_Onshore_2011_Ph1_Processing/05_Graphics/PR-16/Appendix B GeoTomo Vs Profile A-A' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)0 5708783.8 2276047.7 92.4100 5708821.9 2275955.2 91.2200 5708859.9 2275862.8 85.9300 5708898.0 2275770.3 86.3400 5708936.0 2275677.8 90.1500 5708974.1 2275585.3 98.9600 5709012.1 2275492.8 98.5700 5709050.1 2275400.4 98.5800 5709088.2 2275307.9 89.1900 5709126.2 2275215.4 86.41000 5709164.3 2275122.9 86.31100 5709202.3 2275030.4 87.41200 5709240.4 2274938.0 87.2SiteEast (ft.)North (ft.)Elev. (ft.)

DCPP Vs Depth Profiles Along Transect A-A' Note: See Figure 2-2 for profile locations.

DCPP Vs Depth Profiles Along Transect B-B'CENTRAL COASTAL CALIFORNIA SEISMIC IMAGING PROJECT Pacific Gas and Electric Company Figure B-2 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report GeoTomo Vs Profile B-B' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)SiteEast (ft.)North (ft.)Elev. (ft.)0 5708634.0 2275986.1 59.6100 5708672.1 2275893.6 86.3200 5708710.1 2275801.1 87.0 300 5708748.1 2275708.7 87.0400 5708786.2 2275616.2 87.0500 5708824.2 2275523.7 87.3600 5708862.3 2275431.2 87.2700 5708900.3 2275338.7 87.4 800 5708938.4 2275246.3 87.3900 5708976.4 2275153.8 87.41000 5709014.5 2275061.3 87.01100 5709052.5 2274968.8 87.31200 5709090.6 2274876.3 87.5fwla-lk-file/DATA/Projects/79_225400_PGE_WE2_Onshore_2011_Ph1_Processing/05_Graphics/PR-16/Appendix B Note: See Figure 2-2 for profile locations.

DCPP Vs Depth Profiles Along Transect C-C'CENTRAL COASTAL CALIFORNIA SEISMIC IMAGING PROJECT Pacific Gas and Electric Company Figure B-3 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report GeoTomo Vs Profile C-C' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)900 5709318.7 2275793.7 187.3800 5709226.2 2275755.7 147.1700 5709133.7 2275717.6 116.5600 5709041.2 2275679.6 108.7500 5708948.8 2275641.6 96.7400 5708856.3 2275603.5 87.2300 5708763.8 2275565.5 87.1200 5708671.3 2275527.4 86.9100 5708578.8 2275489.4 86.30 5708486.4 2275451.3 87.0SiteEast (ft.)North (ft.)Elev. (ft.)fwla-lk-file/DATA/Projects/79_225400_PGE_WE2_Onshore_2011_Ph1_Processing/05_Graphics/PR-16/Appendix B Note: See Figure 2-2 for profile locations.

DCPP Vs Depth Profiles Along Transect D-D'CENTRAL COASTAL CALIFORNIA SEISMIC IMAGING PROJECT Pacific Gas and Electric Company Figure B-4 PGEQ-PR-16 Revision 1 Fugro Consultants, Inc.

Project No. 04.79225400 2012 3D Onshore Seismic Survey Report GeoTomo Vs Profile D-D' sites using Vp/Vs depth relation 2000 4000 6000 8000 Vs (ft/sec)

-300-200-100 0 100 200 Elevation (feet) 500 1000 1500 2000 Vs (m/sec) 60-40-20 0 20 40 60 Elevation (m)0 5708609.3 2275152.4 72.8100 5708701.8 2275190.4 87.0200 5708794.3 2275228.5 87.1300 5708886.8 2275266.5 87.0400 5708979.3 2275304.6 87.3500 5709071.7 2275342.6 95.0600 5709164.2 2275380.7 109.6700 5709256.7 2275418.7 117.0800 5709349.2 2275456.8 149.2900 5709441.7 2275494.8 199.9SiteEast (ft.)North (ft.)Elev. (ft.)fwla-lk-file/DATA/Projects/79_225400_PGE_WE2_Onshore_2011_Ph1_Processing/05_Graphics/PR-16/Appendix B Note: See Figure 2-2 for profile locations.

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