SLOPE STABILITY ANALYSIS REPORT · The slope stability analysis was performed using the Simplified Bishop Method of slices to discretize the soil mass to establish the minimum factor

PETERSON I PURITAN OU2 SLOPE STABILITY ANALYSIS

CERCLA Docket No 1-87-1064 CUMBERLAND RHODE ISLAND

Prepared for

Shield Environmental Associates Inc 2456 Fortune Drive Suite 100 Lexington Kentucky 40509

Prepared by

4301 Taggart Creek Road Charlotte NC 28208

Project Number 1030105

January 29 2004

PetersonPuritan OU2 - Stability Analysis December 2003 Shield Engineering Joe Page I of8

10 LIMITATIONS

This report has been prepared in accordance with generally accepted geotechnical and environmental engineering practices for the exclusive use of Shield Environmental Associates Inc its agents andor clients This report may not be reproduced in whole or in part without the permission of Shield Environmental Associates Inc and Shield Engineering Inc

Our conclusions and recommendations are based upon our site observations provided survey and provided field data We have assumed that information provided to us by others is correct and true unless otherwise noted If additional information or changes in information is available in the future we request the chance to review and change our recommendations ifnecessary

The Slope Stability Analysis was prepared under my direct supervision

Principal Engineer

MAY 0 6 200+ I assisted with the preparation of this project

omas M Vick PE

REGISTERED PROFESSIONALENGINEER

By J~Long StaffEngineer

PetersonPuritan OU2- Stability Analysis December 2003 Shield Engineering Inc Pageii

TABLE OF CONTENTS 10 LIMITATIONS 1 20 INTRODUCTION 2 30 FIELD TESTING 3 40 ANALYSIS 4 40 CONCLUSIONS AND RECOMMENDATIONS 6 REFERENCES 8

FIGURES

Figure I Site Map Figure 2 CPT Location Map Figure 3 Cross Section Location Map

ATTACHMENTS

Attachment A Slope Stability Geometry Attachment B Slope Stability Data and Graphical Output

PetersonPuritan OU2 - Stability Analysis December 2003 Shield Engineering Inc Page I of8

10 LIMITATIONS

This report has been prepared in accordance witb generally accepted geotechnical and environmental engineering practices for the exclusive use of Shield Environmental Associates Inc its agents andor clients This report may not be reproduced in whole or in part without the permission of Shield Environmental Associates Inc and Shield Engineering Inc

Our conclusions and recommendations are based upon our site observations provided survey and provided field data We have assumed that infonnation provided to us by others is correct and true unless otherwise noted If additional information or changes in information is available in the future we request the chance to review and change our recommendations if necessary

I assisted with the preparation of this project

Analysis was prepared under my direct supervision

homas M Vick PE By

JAN 2 9 200~ Principal Engineer

By J~nM Long Staff Engineer

PetersonPuritan OU2 - Stability Analysis December 2003 Shield Engineering Inc middot Page 2 of8

20 INTRODUCTION

Shield Engineering Inc (Shield) is pleased to provide slope stability analysis of the J M Mills Landfill located in the PetersonPuritan OU2 site in Cumberland Rhode Island The slope-stability analysis was preformed on both sides (slopes) of the landfill using GSTABL 7 with STEDwincopy In-situ testing was performed by CONETEC of West Berlin New Jersey The results were presented in their Field Report for the PetersonPuritan OU2 Superfund Site Cumberland Rhode Island dated September 18 2003 We understand this report is included elsewhere in the DBSR Nine (9) cone penetration tests (CPTs) were performed at various locations around the landfill The primary purpose of this testing was to establish strength and lithologic characteristics of native (including alluvial andor fill materials in and near the landfill) and waste materials found onsite Figure I illustrates the site layout and general orientation of the landfill and Figure 2 illustrates the location of the CPT test borings

PetersonPuritan OU2 - Stability Analysis December 2003 Shield Engineering Inc Page 3 of8

30 FJELD TESTING

CPT testing indicated that native lithology was relatively homogeneous Native material consists of predominately sand with some silt There appears to be some minor bedding in the sand and silty sand layers Layers are thin and the strength of the bulk material relies on the larger grained matrix material sand The material is likely alluvial in origin based on the close proximity of the Blackstone River This is consistent with the boring logs provided to us by Shield Environmental Associates Inc of Lexington Kentucky The material in the landfill itself appeared to be heterogeneous as expected Shear strength values for the landfill materials were very erratic resulting in a range of engineering properties

Onsite observations provided insight to the stability of the landfill A few of the observations made onsite were bull The landfill is standing without any lateral support (it is free standing) bull The landfill had little to no cover soi l (varies by location) bull The slopes range from an estimated 2 I to 31 bull The landfill seems to contain large voids consistent with anticipated conditions bull Materials included in the landfill appear to be a combination of construction and

demolition (CampD) waste and municipal solid waste (MSW) bull High temperatures at the bottom of the landfill indicated that organic degradation is

occurring this could be confirmed by methane monitoring bull Surface failure was not clearly identified (due to heavy vegetation) however

topographic data indicates that localized failures may have occurred bull No cracks were observed at the top of the landfill

Soil and landfill testing by CONETEC consisted of approximately 355 linear feet of boring data In each location probes were pushed until refusal was encountered Pore pressure dissipation tests were performed in each of the applicable locations The water table was intersected during six of the nine tests The CONETEC report includes basic principles of cone technology testing results in graphical form results in numeric form along with calculations and pore pressure dissipation test data

The locations of the borings are depicted on Figure 2 Boring locations were chosen based on the geometry of the landfill Site restrictions did not allow for a CPT sample to be collected along the railroad tracks Subsurface strata were assumed to be continuous from data collected northwest and southeast of the landfill CPT-7 and CPT-9 respectively

40 ANALYSIS

In order to perform the stability analysis it was necessary to make assumptions based on site-specific project information and on-site observations A sensitivity analysis was preformed on the phi angle ( ltj also known as the internal friction angle) and the unit weight (y) of the landfill material The result of the sensitivity analysis indicated that the unit weight was less of an influential factor than the phi angle in the stability of the landfill Experience engineering judgement and comparison to observed field conditions were used whenever possible to establish the most representative analysis

In this case two modes of slope failure are likely The first is global fai lure of the landfill Global failure typicaJly occurs along deep circular failure surfaces and is characterized by massive slope failures The second failure mode is surface failure Evidence of surface failure is typically seen in the form of slumping andor subsidence along the surface of the slope Evidence exists for surface failure based on topographic data and field observations Saturation of the upper layer of waste materials during a precipitation event may cause the material to become heavier than the underlying material causing surface instability

The slope stability analysis was performed using the Simplified Bishop Method of slices to discretize the soil mass to establish the minimum factor of safety of the slope The method sat isfies vertical force equilibrium for each slice The moment is then calculated about the center of the trial surface One of the main assumptions of the Bishop method is zero interstice shear force The failure surface is also assumed to be circular The Bishop method is one of the most widely used slope stability methods Factors of safety (FS) have been calculated to be within 5 of Janbus formulation (a more rigorous set of assumptions)

In order to assess the stability of the slope made of unknown materials data was taken from the results of the CPT testing and compared to hypothetical conditions Sensitivity of the parameters y and ltj was assessed Data indicated that as unit weight increased the factor of safety increased It should be noted that dry and wet unit weight affect the stability differently Typically saturated materials have less strength than like dry materials The sensitivity analysis also indicated that as the internal friction angle increased the factor of safety increased This is consistent with previously held notions Table 31 below presents the sensitivity of the drywet unit weight and Table 32 shows the sensitivity of the internal friction angle

To access a conservative likely range for the unit weight and internal friction angle the values of Ydry = 55 pcf Ysat = 65 psf and 225deg were used respectively as an overall indicator of stability Using these values a factor of safety of approximately 11 is realized The FS of 11 should not be considered comprehensive as the waste material is heterogeneous and will certainly vary from location to location A range of FS should be considered in this situation along with a range of the parameters y and ltj Likely ranges of phi vary between 20deg and 45deg making the FS vary between 10 and 23

PetersonPuritan OU2 -Stability Analysis December 2003 Shield Engineering Inc Page 5 of8

Figure 3 illustrates the location of the two (2) slope sections that were analyzed for slope stability The slopes were chosen based on proximity to boring locations and also areas of steep slope to yield worst case scenario conditions The first section runs from the top of the landfill towards Blackstone River The second section line runs from the top of the landfi ll into the wetlands or swampy area The water table was assumed to somewhat follow the topography in the landfill Attachment 1 includes the landfill slope sections analyzed Attachment 2 contains the slope stability data and graphical outputs

Table 31 YdiYw (osO

~ (degrees)

Factor of Safety

2535 21 048 3545 21 075 45155 21 088 55165 21 096 65175 21 102 7585 21 103 85195 21 103

105 115 21 103

Table 32 YdfYw IJSt)

~ (degrees)

Factor of Safety

4555 5 020 4555 10 040 4555 15 061 4555 20 083 4555 25 107 45155 30 132 45155 35 157 45155 40 180 45155 45 202 45155 50 223 4555 55 245

40 CONCLUSIONS AND RECOMMENDATIONS

Slope strength is traditionally gauged by the resulting factor of safety (FS) Due to the inherent nature of landfill-type material engineering judgement was considered throughout the project The fact that the landfill appeared to be relatively stable was considered along with the fact that the strength of the slope directly depends on the material contained within Interlocking steel beams could provide significant increases in the FS however organic materials may appear strong until degradation occurs then lowering the FS Since this landfill appears to be a combination of materials it is necessary to consider both scenarios

The results of the analysis using conservative input values to the model indicate that the overall landfill slopes are stable and may be for some period however some localized failures have likely occurred These rather conservative input values do result in FS(s) lower than typical minimum FS of 15 required for water retention by earthen embankments However acceptable FS(s) of mounds of solid material such as landfills typically are in the range of 12 to 13 Since the landfill is free standing the factor of safety must be equal to at least 10 Due to the high variability of the unit weight and the internal friction angle inherent to waste materials it is likely that localized failure will occur in some location sometime in the future The high temperatures near the bottom of the landfill indicate that degradation is occurring Factors of safety will decrease with time as the organic material degrades and weakens The native sand and silty sand appear strong enough to provide sufficient support for the landfill Failure surfaces are most likely to occur along the interface between the waste material and the native materials and also along the surface of the slope (depending on the chosen phi angle)

Geographic considerations must be taken into account for this particular site The close proximity of the Blackstone River could influence the global and surface stability of the landfill During flood or other high water conditions the erosion of the bank could scour the toe of the slope compromising the stability of the landfill The river channel should be stabilized and scour protections should be installed to reduce this potential

To help maintain the integrity of the landfill slopes a few remediation techniques should be considered One technique would be to reduce the overall side slopes of the landfill To do this~ material would have to be removed from the top of the landfill and deposited at another location or along an extended landfill embankment A capping system should then be designed for the waste material to minimize water infiltration thus controlling the piezometer surface in the landfill material and reducing leachate generation potential (and degradation of the waste materials) Minimum slopes should be maintained to prevent sliding of the cap If heavy equipment is used during the remediation process thought should be given to the type and weight of the equipment Dynamic loading as a result of the heavy equipment could reduce the strength of the slope Stability of the waste materials should be reassessed once a remedial plan is devised to ensure that the design has an adequate FS and that construction proceeds in a safe manner Further investigation could provide specific construction details and specifications on capping systems slope gradients and remedial alternatives

Based on the evidence presented herein the landfill is not likely to experience global failure However localized surface failures are likely as they may have already occurred in some locations Although the landfill materials may exhibit appreciable strength properties because of reinforcement by interlocking debris these properties will likely decrease with time If capping is used as a remedial technique the current steepness of the slope will cause sliding of the cover unless modifications are made

REFERENCES

Kulhawy FH and PW Mayne (1990) Manual on estimating soil properties for foundation design Final Report 1493-6 EL-6800 Electric Power Research Institute Palo Alto CA

Robertson PK and RG Campanella (1983) Interpretation of cone penetration testsshyPart 1 sand Can Geotech Journ 20718-733

Figures

Attachment A

---- ---- ---- --- ---- ---- ---- ---- ---- --- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----

Soil Soil Total Salurated Fllclion Piez DMC Type Unit Wt Unit Wt Ar1g1e Surface

No (pet) (pof) (deg) No Sill 1 8596 11143 7 W1

Truh 2 55 65 225 W1

-shy-----------shy

-------------

Temination Urnits

---t- ------1

Cross Section 1 PettersonPurltan OU2 hQoo-onvlronmenllll (0120)20031 OS01 0501 petersonmiddotpYntan ou~ntan t1 pl0 GIICllnltry Preview 11124103 920 AM

Min Surface Elavalicn 10

Segmenl Lena1SO ft j0 I I I I 1

10 110 210 S10 410 510 810

Cross Section 2 PettersonPuritan OU2 hQeo-envlronmenlal (0 120)2003 103010501 peteraon-puritan ou~ritan 2pl0 Geometty Preview 11126103 1 45 PM

Soil Soli Total Saturated Friction Piez Oeac Type Unit Wl Unit Wt A~ Surface

No (pcf) (pcf) (dig) No SanciSit 1 8596 1114S 37 W1

Trash 2 56 65 225 W1 200 ~Organic S 43 89 16 W1

Terrrinalicn Urrits

~I-~-~~--~------~------

Min Surface Elevation 10 SegrrentiLen=iSOfl-- ------------ - ------ - - -- --]

0 I I I I 1 I 1

10 110 210 310 410 510 810 710

Attachment B

bull I

Cross Section 1 PettersonPurltan OU2 hQeooenvRliVTI8ntal (0120)2003 1 03010501 pote18011middotpurltan ou~rttan t1pi2 Run By Shield Engineering Inc 111240S OS18AM

I 1227 12SS 3 middot~

FS bull 1181 b 1199 c 1201 d 1201 e 1222

Scil Sail Total Saturated Friction Piez OMC Typo Unit WL Unit WL A1YJe Surface

No (pcf) (pcf) (deg) No Silt 1 860 11 14 S70 W1

Truh 2 550 650 225 W1

10 110 210 310 410 510 810

GSTASL7 v2 FSrnln1181 Safety Factors Are Clculatd By The Modified Bishop Method

bull 0~--------~----------~--------~----------~--------~----------~

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HPuritan I10UT Page 1

GSTABL7 bullbull GSTABL7 by Garry H Gregory PE bullbull

SLOPE STABILITY ANALYSIS SYSTEM Modified Bishop Simplified Janbu or GLE Method of Slices (Includes Spencer amp Morgenstern-Price Type Analysis Including PierPile Reinforcement Soil Nail Tieback Nonlinear Undrained Shear Strength Curved Phi Envelope Anisotropic Soil Fiber- Reinforced Soil Boundary Loads Water Surfaces Pseudo- Static amp Newmark Earthquake and Applied Forces

Analysis Run Date 112403 Time of Run 0937AM Run By Shield Engineeri ng Inc Input Data Filename HGeo- Environmental (0120)20031030105- 01 Peterson- Puritan

002CPTPuritan llin Output Filename HGeo-Environmental (0120)20031030105-01 Peterson-Puritan

002CPTPuritan llOUT Unit System English Plotted Output File name HGeo-Environmental (0120)20031030105- 01 Peterson-Puritan

OU2CPTPuritan flPLT PROBLEM DESCRIPTION Cross Section 11

PettersonPuritan OU2 BOUNDARY COORDINATES

Note User origin value specified Add 1000 to X-values and 000 toY-values listed

7 Top Boundaries 9 Total Boundaries

Boundary X-Left Y-Left X- Right Y-Right Soil Type No (ft) (ft) (ft) (ft) Below Bnd

1 10 00 5600 6300 5100 1 2 6300 5100 11600 5600 1 3 11600 5600 13300 6200 1 4 13300 6200 20700 6400 2 5 20700 6400 26100 7000 2 6 26100 7000 52100 140 00 2 7 52100 140 00 57900 14000 2 8 13300 6200 163 00 5200 1 9 16300 5200 57900 5200 1

Default Y-Origin ~ OOO (ft) Defa u lt X-Plus Value = OOO(ft Default Y- Plus Value = OOO(ft)

ISOTROPIC SOIL PARAMETERS 2 Type(s) of Soil

Soil Total Saturated Cohesion Friction Pore Pressure Piez Type Unit Wt Unit Wt Intercept Angle Pressure Constant Surface

No (pcf) (pcf) (psf (deg) Param psf) No 1 860 1114 00 370 000 00 1 2 550 650 00 225 000 00 1

l PIEZOMETRIC SURFACE($) SPECIFIED Unit Weight of Water - 6246 (pcf) Piezometric Surface No 1 Specified by 5 Coordinate Points Pore Pressuremiddot Inclination Factor = 0 50

Point X-Water Y-Water No 1ft I ( ft )

1 1000 5600 2 15600 5600 3 26100 6000 4 52100 10000 5 57900 100 00

A Critical Failure Surface Searching Method Using A Random Technique For Generating Circular Surfaces Has Been Specified 2000 Trial Surfaces Have Been Generated

1 Surface(s) Ini~iate(s) From Each Of 2000 Points Equally Spaced

HPuritan llOUT Page middot

Alonq The Ground Surface Between X bull lOOO(ftl and x bull 51000(ftl

Each Surface Terminates Between X = 52100(t) and X~ 57900(ft)

Unless Further Limitations Were Imposed The Minimum Elevation At Which A Surface Extends Is Y R lOOO(ft) 1500 (ft) Line middotsegments Define Each Trial Failure Surface Following Are Displayed The Ten Host Critical Of The Trial

Failure Surfaces Evaluated They Are Ordered - Host Critical First bull Safety Factors Are Calculated By The Modified Bishop Method bull bull Total Number of Trial surfaces Attempted 2000 Number of Trial Surfaces With Valid FS bull 2000 Statistical Data On All Valid FS Values

FS Max ~ 34260 FS Min = 1181 FS Ave ~ 2 543 Standard Deviation = 2008 Coefficient of Variation s 78 97

Failure Surface Specified By 22 Coordinate Points Point X-Surf Y- Surf No (ft) (ftl

1 268377 71986 2 282306 66420 3 296561 61750 4 311083 57994 5 325814 55167 6 340695 53281 7 355666 52343 8 370666 52 358 9 385634 53324

10 400512 55238 11 415238 58093 12 429752 61877 13 443998 66574 14 457917 72166 15 471452 78631 16 484550 85941 17 497158 94068 18 509224 102979 19 520701 112637 20 531541 123005 21 541 702 13404 0 22 546528 140000

Circle Center At X = 362913 Y = 288143 and Radius 235925 Factor of Safety

bullbullbull 1181 bullbullbull Individual data on the 24 slices

Wa ter Water Tie Tie Earthquake Force Force Force Force Force Surcharge

Slice Width Weight Top Bot Norm Tan Hor Ver Load No (ft) (lbs) (1bs) (lbs) (lbsl (lbsl (lbs) (1bsl (lbs)

001 139 35685 00 0 0 0 0 00 00 2 65 40434 00 00 0 0 00 00 00 3 77 6737 3 00 9340 0 0 00 00 00 4 145 182616 oo 62193 0 0 0 0 00 00 5 147 251890 00 113514 0 0 00 00 00

6 14 9 313179 00 156431 0 0 00 00 00 7 150 365267 00 190772 o 0 00 00 00

008 150 401181 00 216398 0 0 00 00 9 150 438198 00 233207 0 o 00 00 00

10 149 457866 00 241129 0 0 oo 00 00 11 147 466009 00 240134 0 0 00 00 00 12 145 46272 5 00 230224 0 o 00 00 00 13 142 448389 0 0 211442 0 0 00 oo 00

14 139 423642 oo 183861 0 0 00 00 00 15 135 389381 00 14759 3 o 0 oo 00 0 0

16 131 346742 00 102784 o 0 00 00 00 17 126 297 077 oo 49616 0 0 oo 0 0 00 18 39 82659 00 3365 0 o 00 0 0 00

HPuritan llOUT Page 3

19 82 161215 00 00 0 0 0 0 00 0() 0020 115 19293 8 00 0 0 0 o 00 00

21 03 4473 00 00 0 0 00 00 0 0 22 105 127755 00 00 o 0 00 00 oo 23 102 64139 00 00 0 o 00 00 00

24 48 7911 00 00 0 0 0 0 00 00 Fai l ure Surface Specified By 26 Coordinate Points

Point X-Surf Y- Surf No (ft) (ft)

1 221104 65567 2 235657 61932 3 250338 58856 4 265126 56343 5 279999 54398 6 294936 53022 7 309915 52 219 8 324913 51 990 9 339909 52333

10 354881 53250 11 369807 54739 12 384 665 56798 13 399433 59423 14 414091 62610 15 428615 66356 16 442986 70655 17 457182 75500 18 471 183 80884 19 484967 86 800 20 498515 93 238 21 511807 100189 22 524823 107644 23 537545 115 591 24 549954 124019 25 562031 132915 26 570918 140000

Circle Center At X= 323413 Y a 443975 and Radius- 391994 Factor of Safety

bullbullbull 1199 bullbullbull Failure Surface Specified By 26 Coordinate Points

Point X-Surf Y- Surf No (ftl (ft)

1 223855 65873 2 238410 62247 3 253 098 59204 4 267896 56748 5 282780 54885 6 297 726 53616 7 312 711 52943 8 327711 52868 9 342702 53391

10 357660 5451 1 11 372561 56226 12 387383 58533 13 402101 61429 14 416691 64 909 15 431132 68968 16 445399 73599 17 459470 78795 18 473 323 84548 19 486936 90848 20 500287 97686 21 513355 105050 22 526119 112928 23 538559 121310 24 550655 130 180 25 562 389 139525 26 562938 140000

HPuritan llOUT Page

Circle Center At X ~ 322089 y c 429120 and Radius = 376296 Factor of Safety

bullbullbull 1201 bullbullbull Failure surface Specified By 24 Coordinate Points

Point X-Surf Y-Surf No (ft) (ft)

1 239863 67651 2 254337 63714 3 268974 60434 4 283744 57816 5 298 616 55 866 6 313562 54588 7 328 550 53985 8 343550 54058 9 358531 54807

10 373463 56230 11 388316 58324 12 403060 61085 13 417664 64508 14 432099 68586 15 446336 73310 16 460346 78670 17 474099 84656 18 487569 91256 19 500728 98 456 20 513550 106242 21 526007 114 597 22 538075 123505 23 549 730 132 948 24 557673 140000

Circle Center At X = 334421 y 386484 and Radius 332559 Factor of Safety 1201

Failure Surface Specified By 22 Coordinate Points Point X-Surf Y-Surf No (ft) (ft)

1 252 369 69041 2 266436 63834 3 280807 59533 4 295421 56155 5 310 221 53714 6 325147 52219 7 340 137 51677 8 355131 52 090 9 370 069 53 455

10 384 889 55769 11 399533 59 021 12 413939 63198 13 428051 68283 14 441811 74255 15 455163 81091 16 468 052 88763 17 480428 97239 18 492239 106485 19 503438 116464 20 513979 127 136 21 523820 138 456 22 524999 140000

Circle Center At X= 341144 Y 287171 and Radius~ 235503 Factor of Safety middot~middot 1222 bullbullbull

Failure Surface Specified By 24 Coordinate Points Point X-Surf Y- Surf No (ft) (ft)

1 225856 66095 2 240282 61985 3 254885 58555

4 269 632 55812 5 284491 53761 6 299430 52408 7 314416 51756 8 329415 51806 9 344397 52557

10 359326 54008 11 374172 56157 12 388900 58 997 13 403480 62524 14 417878 66729 15 432064 71 603 16 446007 77 135 17 459675 83 314 18 473039 90125 19 486070 97555 20 498739 105586 21 511019 114201 22 522882 123381 23 534302 133105 24 541670 140000

Circle Center At X - 320846 Y bull 371909 and Radius- 320227 Factor of Safety

~middotmiddot 1227 Failure Surface Specified By 24 Coordinate Points

Poi nt X- Surf Y-Surf No (ft) (ft

1 262124 70303 2 276452 65 865 3 290976 62115 4 305662 59 061 5 320477 56711 6 335387 55 070 7 350358 5414 2 8 365356 53928 9 380348 54429

10 395299 55645 11 410174 57572 12 424 941 60205 13 439566 63 540 14 454015 67568 15 468256 72 280 16 482256 77665 17 495983 83712 18 509406 90 406 19 522495 97 733 20 535220 105675 21 547552 114215 22 559463 123332 23 570926 133007 24 578451 140000

Circle Center At X = 362322 Y bull 368232 and Radius 314327 Factor of Safety

bullbullbull 1 233 bullbullbull Failure Surface Specified By 24 Coordinate Points

Point X-Surf Y-Surf No ft) (ft)

1 209598 64289 2 224237 61016 3 238999 58358 4 253860 56319 5 268793 54904 6 283773 54115 7 298 772 53 953 8 313764 54418 9 328725 55 510

10 343626 57226

11 358443 59564 12 373149 62520 13 387718 66088 14 402126 70263 15 416346 75036 16 430354 80400 17 444126 86345 18 457637 92860 19 470863 99935 20 483783 107557 21 496372 115713 22 508609 124387 23 520472 133566 24 528105 140000

Circle Center At X ~ 295 145 Y 412217 and Radius = 358291 Factor of safety

Point X-Surf Y-Surf No (ft (ft)

1 230859 66 651 2 245457 63205 3 260177 60318 4 274996 57995 5 289893 56238 6 304846 55051 7 319833 54435 8 334833 54391 9 349824 54918

10 364783 56017 11 379690 57686 12 394523 59 922 13 409259 62 722 14 423878 66082 15 438358 69997 16 452678 74461 17 466818 79468 18 480757 85010 19 494474 91080 20 507949 97669 21 521164 104 766 22 534098 112363 23 546733 120447 24 559051 129007 25 571 033 138031 26 573450 140000

Circle Center At X bull 328 487 Y = 447402 and Radius 393069 Factor of Safety

1 214851 64872 2 229506 61677 3 244263 58983 4 259102 56794 5 274007 55112 6 288961 53939 7 303947 53277 8 318946 53 127 9 333942 53488

10 348916 54360 11 363853 55742 12 378 733 57633 13 393540 60030 14 408257 62930 15 422866 66331

16 17 18 19 20 21 22 23 24 25 26 27

Circle

HPuritan tlOUT Page 7

4373~1 70 228 451695 74617 465881 79 492 479892 84848 493712 90679 507326 96978 520716 103737 533869 110949 546768 118605 559398 126697 571 745 135214 578200 140000

Center At X ~ 315862 Y e 492934 and Radius 439818 Factor of Safety

bullbullbull 1 241 bullbullbull END OF GSTABL7 OUTPUT

PROFIL HGeo- Environmenta1 (0120)20031030105- 01 Peterson-Puritan OU2CPTPuritan tlin Versi Cross Section 1 PettersonPuritan 002 middot 9 7 10 56 63 5 1 1 63 51 116 5 6 1 116 56 133 62 1 133 62 207 64 2 207 64 261 70 2 261 70 521 140 2 521 140 579 140 2 133 62 163 52 1 163 52 579 52 1 0 0 0 SOIL Silt Trash 2 8596 11143 0 37 0 0 1 55 65 0 22 5 0 0 1 WATER 1 6246 5 05 10 56 156 56 261 60 521 100 579 100 CIRCL2

2000 1 10 510 521 579 10 15 0 o

Cross Section 2 PettersonPurltan OU2 hgeo-envlrcnrrental (0120)2003103010501 peterscnmiddotpuritan cu~r1tan 12pl2 Run By Shlekf Engileering Jno 111240S 01 48PM

I FS Soil Scil Total Satural8d Friction Plez a 1172 Oeeo Type Unit WL Unit WL Angle Surface b 1221 No (pcf) (pcf) (deg) No c 1235 SendSilt 1 880 111-4 370 W1 d 1238 Truh 2 550 650 226 W1 e 1239 Otgano 3 430 890 150 W1 f 1246

1247 ~

010----~=------L----~~----~------~~----L------L----~ 110 210 310 410 510 810 710 810

p GSTABL7 v2 FSmin1172

Safety Factors Are Clculated By The Modified Biahop Method

hpuritan tlOUT Page 1

G87ABL7 GSTABL7 by Garry H Gregory PR u

middotmiddotmiddotmiddotmiddotmiddotbullbullbullbullmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotbull-middotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddotSLOPB STABILITY ANALYSIS SYSTEM

Modified Bishop Simplified Janbu or GLB Method of Slices (Includes Spencer amp Morganstern-Price Type Analysis) Including PierPile Reinforcement Soil Nail Tieback Nonlinear Undrained Shear Strength CUrved Phi Envelope Anisotropic Soil Fiber-Reinforced Soil Boundary Loads Water Surfaces Pseudo-Static amp Newmark Earthquake and Applied Forces

Analysis Run Date 112403 Time of Run 0148PM Run By Shield Engineering Inc Input Data Filename hGeo- Environmental (0120)20031030105-01 Peterson- Puritan

OU2CPTpuritan t2in OUtput Filename hGeo-Environmental (0120)20031030105-01 Peterson-Puritan

OU2CPTpuritan t20UT Unit System English Plotted Output Filename h Gao-Environmental (0120) 20031030105-01 Peterson-Puritan

OU2CPTpuritan 2PLT PROBLBM DESCRIPTION Cross Section 2

PattersonPuritan OU2 BOUNDARY COORDINATES

Note User origin value specified Add 1000 to X- values and 000 to Y-values listed

8 Top Boundaries 12 Tota1 Boundaries

Boundary X-Left Y-Left X-Right Y-Right Soil Type No (ft) (ft) (ft) (ft) Below Bnd

1 1000 62 00 45150 6200 3 2 45150 6200 45250 6600 3 3 45250 6600 45550 6600 3 4 45550 6600 45650 6400 1 5 45650 6400 49100 7200 2 6 49100 7200 70360 13600 2 7 70360 13600 76060 14000 2 B 76060 140 00 79860 140 00 2 9 45660 6400 46600 5400 1

10 46600 5400 79860 5400 1 11 1000 5200 44000 5200 1 12 44000 5200 45150 6200 1

Default Y- Origin = OOO(ft) Default X-Plus Value = OOO(ft) Default Y- Plus Value = OOO(ft)

ISOTROPIC SOIL PARAMETERS 3 Type(s) of Soi l

No (pcf) (pcf) (psf) (deg) Param (psf) No 1 860 1114 00 370 000 00 1 2 550 65 0 00 225 000 00 1 3 430 890 00 150 000 00 1

1 PIEZOMETRIC SURFACB(S) SPBCIFIBD Unit Weight of Water = 62 46 (pcf) Piezometric Surface No 1 Specified by 4 Coordinate Points Pore Pressure Inclination Factor 050

Point X-Water Y-Water No (ft) (ft)

l 1000 6100 2 45650 6300 3 70360 8500 4 79860 8500

hpuritan t20UT Page 2

1 Surface(s) Initiate(a) From Each Of 2000 Points Equally Spaced Along The Ground Surface Between X = 21000(ft)

and X 70000(ft) Bach Surface Terminates Between X 710 00(ft)

and X 79800(ft) Unleua Further Limitations Were Imposed The Minimum Elevation At Which A Surface Extends Is Y = lOOO(ft) lSOO(ft) Line Segments Define Each ~ial Failure Surface ERROR - RC11

gtgt200 att~bull to generate railure aurraoa haYa railt ~ibullbull liaitationa The Factor Of Safety For The Trial Failure Surface Defined By The Coordinates Listed Balow Is Misleading Failure Surface Defined By 25 Coordinate Points

1 45463 6600 2 45637 5539 3 47654 4582 4 48890 3732 5 50197 2997 6 515 66 2383 7 52985 1896 8 54442 1540 9 55925 1317

10 57423 1229 11 58922 1277 12 60411 1461 13 61877 1778 14 63308 2228 15 64692 2804 16 66019 3504 17 67277 4322 18 68456 5249 19 69545 6280 20 70538 7405 21 71424 8615 22 72196 9901 23 72850 11251 24 73378 12655 25 73703 13835

Factor Of Safety For The Preceding Specified Surface = 2766 Following Are Displayed The Ten Most Critical Of The Trial

Failure Surfaces Evaluated They Are Ordered - Most Critical First bull bull Safety Factors Are Cal culated By The Modified Bishop Method bull bull Total Number of Trial Surfaces Attempted = 2000 Number of Trial Surfaces with Misleading FS = 1 Nwftber of Failed Attempts to Generate Trial Surface = 1001 Number of Trial Surfaces With Valid FS = 998 Percentage of Trial Surfaces With Non-Valid FS Solutions of the Total Attempted = 501 Statistical Data On All Valid FS Values

FS Max= 3894 FS Min = 1172 FS Ave ~ 2265 Standard Deviation = 0373 Coefficient of Variation = 1646

1 433302 62 000 2 448003 59020 3 462824 56711 4 477735 55078 5 492705 54125 6 507702 53853

7 522696 54262 8 537 657 55353 9 552552 57122

10 567352 59567 11 582025 62681 12 596541 66459 13 610871 70893 14 624984 75974 15 638852 81691 16 652446 88032 17 665737 94984 18 678699 102534 19 691304 110664 20 703 527 119359 21 715342 128600 22 725778 137556

Circle Center At X 506191 y = 383709 and Radius = 329863 Factor of Safety

1172 Individual data on the 34 slices

Water Water Tie Tie Barthquake Force Force Force Force Force Surcharge

Slice Width Weight Top Bot Norm Tan Hor Ver Load No (ft) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs) (lbs)

1 147 19495 8530 22664 0 o oo oo 00 2 0 1 158 36 149 0 0 00 00 00 3 34 1132 4 2082 9185 o 0 00 oo 00 4 10 4517 oo 2897 0 o oo 00 00 5 30 16975 00 9298 0 o 00 00 oo

10 7542 00 3302 o o 00 00 006 7 01 401 00 335 0 o 00 00 00 8 09 5841 00 2941 0 o oo oo 00 9 54 33803 00 20925 o 0 oo 00 00

o 00 00 0010 07 4005 00 3030 0 11 142 101154 00 74726 o 0 00 00 oo 12 13 3 129622 00 89520 0 0 00 00 00 13 17 1898 0 00 12718 0 0 00 00 00 1( 69 82228 oo 53340 0 o 00 00 00 15 81 108746 oo 67067 0 o 00 00 00

0016 54 78618 00 46592 o 0 00 00 0017 96 150777 00 85633 0 o 00 00

18 150 260485 00 137669 0 o 00 00 oo 19 149 284302 00 136727 0 0 oo 00 00

0 o oo 00 0020 148 300548 oo 129401 21 147 309205 00 115706 0 0 00 00 oo 22 145 310360 00 95670 0 0 0 0 00 00 23 143 304198 00 69335 0 0 oo 00 00 24 141 291003 00 36755 0 0 00 oo 00

0025 63 124820 00 4275 0 0 00 00 26 76 147261 00 00 0 o oo 00 oo

oo 0 0 27 136 251910 00 00 0 o 00 28 133 227301 0 0 00 o o 00 oo 00

29 130 198144 00 00 0 o 00 00 00 30 126 165021 00 00 o 0 00 00 00

0031 122 128581 oo oo 0 0 0 0 oo 32 01 664 00 00 0 0 oo 00 oo

0033 117 80107 00 00 0 o 00 00 0034 104 23600 oo 00 o 0 oo 00

Failure Surface Specified By 25 Coordinate Points Point X-Surf Y-Surf

No (ft) (ft) 1 389181 62000 2 403943 59340 3 418792 57221 4 433709 55645 5 448674 54614

6 463666 54130 7 478666 54194 8 493654 54805 9 508609 55962

10 523512 57664 11 538343 59909 12 553082 62694 13 567710 66015 14 582207 69867 15 596554 74246 16 610731 79145 17 624720 84559 18 638502 90479 19 652059 96 898 20 665373 103808 21 678426 111199 22 691200 119061 23 703679 127384 24 715 846 136157 25 716838 136929

410992Circle Center At X = 469426 Y = 465082 and Radius = Factor of Safety

bullbullbull 1 221 bull bullbull Failure Surface Specified By 21 Coordinate Points

1 434772 62000 2 449672 60264 3 464629 59134 4 479620 58613 5 494620 58701 6 509603 59399 1 524547 60 704 8 539424 62616 9 554~12 65131

10 568885 68244 11 583420 71951 12 597792 76246 13 611978 81 120 14 625954 86567 15 639697 92577 16 653185 99141 17 666395 106247 18 679305 113 884 19 691895 122040 20 704142 130699 21 711772 136574

Circle Center At X = 484947 Y 427715 and Radius= 369141 Factor of Safety

1235 Failure Surface Specified By 22 Coordinate Points

Point X-Surf Y- Surf No ft) (ft)

1 444577 62000 2 459441 59982 3 474373 58557 4 489 350 57725 5 504348 57489 6 519344 57850 7 534313 58805 8 549233 60354 9 564080 62 495

10 578829 65223 11 593459 68535 12 607946 72426 13 622266 76889

14 636 398 81918 15 650320 87503 16 664008 93637 17 677442 100311 18 690600 107512 19 703462 115230 20 716007 123453 21 728216 132168 22 736096 138280

Circle Center At X = 502803 Y shy 434667 and Radius 377188 Factor of Safety

1238 Pai1ure Surface Specified By 25 Coordinate Points

Point X- Surf Y-Surf No (ft) (ft)

1 392122 62000 2 406928 59596 3 421809 57709 4 436747 56343 5 451723 55 498 6 466719 55176 7 481718 55377 8 496701 56101 9 511649 57347

10 526544 59113 11 541369 61398 12 556106 64 198 13 570 735 67511 14 585241 71331 15 599604 75655 16 613808 80477 17 627835 85792 18 641668 91592 19 655291 97871 20 668686 104621 21middot 681838 111835 22 694730 119502 23 707347 127615 24 719673 136162 25 721102 137228

Circle Center At X = 468454 Y 485295 and Radius 430122 Factor of Safety

Point X- Surf Y- Surf No (ft) (ft) ~ 442126 62000 2 456825 59011 3 471641 56666 4 486545 54970 5 501508 53 926 6 516503 53536 7 531501 53800 8 546473 54719 9 561390 56290

10 576225 58511 11 590948 61377 12 605533 64883 13 619951 69022 14 634174 73786 15 648176 79166 16 661930 85152 17 675409 91733 18 688589 98896 19 701443 106627 20 713948 114911

hpuritan 120UT Page 6

21 726079 123733 22 737813 133077

23 744 469 138868 517941 y = 397185 and Radius 343652Circle Center At X = =

Factor of Safety bullbullbull 1246 Failure Surface Specified By 25 Coordinate Pointa

1 ltamp01682 62 000 2 416497 59653 3 431383 57809 4 446323 56469 5 461300 55635 6 476296 55308 7 491295 55488 8 506279 56176 9 521232 57370

10 536135 59069 11 550973 61271 12 565727 63973 13 580382 67173 u 594920 70866 15 609325 75050 16 623580 79717 17 637670 84865 18 651517 90486 19 665286 96574 20 678781 103122 21 692 047 110122 22 705069 117568 23 717831 125449 24 730320 133758 25 736703 138323

Circle Center At X = 478463 y = 498785 and Radius 443482 Factor of Safety

bull 1247 Failure Surface Specified By 26 Coordinate Points

Poi nt X-Surf Y- Surf No (ft) (ft)

1 385749 62000 2 400554 59591 3 415430 57665

430 361 56225 5 445331 55272 6 460323 54806 7 475323 5(829 8 490315 55340 9 505281 56339

10 520208 57824 11 535078 59795 12 549875 62249 13 564586 65183 14 579193 68595 15 593681 72480 16 608034 76836 17 622239 81656 18 636279 86936 19 650140 92670 20 663806 98852 21 677264 105476 22 690500 112535 23 703498 120021 24 716246 127926 25 728730 136242 26 731092 137929

hpuritan llOUT Page 7

Circle Center At X= 467129 Y a 515178 and Radius= 460427 Factor of Safety

1 384278 62000 2 398993 59089 3 413807 56736 4 428700 54944 5 443650 53715 6 458635 53052 7 473635 52956 8 488627 53425 9 503591 54461

10 518506 56061 11 533349 58223 12 548100 60944 13 562738 64221 14 577242 68047 15 591591 72419 16 605764 77329 17 619742 82771 18 633505 88738 19 647032 95219 20 660305 102207 21 673304 109691 22 686012 117661 23 698410 126104 24 710480 135010 25 712503 136625

1258 bullbullbull Failure Surface Specified By 24 Coordinate Points

Point X- Surf Y- Surf No (ft) (ft)

1 406094 62000 2 420 949 59919 3 435865 58341 4 450827 57 268 5 465816 56701 6 480816 56641 7 495810 57088 8 510779 58041 9 525708 59499

10 540 579 61461 11 555376 63924 12 570080 66886 13 584677 70343 14 599148 74291 15 613 477 78 725 16 627649 83642 17 641646 89034 18 655453 94896 19 669054 101222 20 682434 108003 21 695576 115233 22 708467 122902 23 721092 131003 24 731127 137932

Circle Center At X = 475104 Y = 500232 and Radius ~ 443632 Factor of Safety

bullbullbull 1259 END OF GSTADL7 OUTPUT

PROFIL hGeo-Knvironmental (0120)20031030105-01 Peterson- Puritan OUlCPTpuritan t2in V Cross Section 12 PattersonPuritan 002 12 8 10 62 4515 62 3 4515 62 4525 66 3 4525 66 4555 66 3 4555 66 456 5 64 1 4565 64 491 72 2 491 72 7036 136 2 7036 136 7606 140 2 760 6 140 7986 140 2 456 6 64 466 54 1 466 bull 54 7 98 bull 6 54 bull 1 10 52 40 52 1 440 52 4515 62 1 0 0 0 SOIL SandSiltTrash Organic 3 85 96 11143 0 37 o 0 1 55 65 o 225 0 0 1 43 89 0 15 o o 1 WATER 1 6246 4 05 10 61 4565 63 7036 85 7986 85 CIRCL2 2000 1 210 700 710 798 10 15 0 0

Cross Section 12 PettersonPurltan OU2 hQeo-envlrcnmental (0120)2003103010501 petaraon-puritan ou2q)lpurltan 12pl2 Run By Shlekl Engineering Inc 1112U03 0316PM

II FS Soil Soil TocaJ Sauratd Friction Piez bull 1383 Deao Type Unit WL Unit Wt MtJe Surface b 1384 No (pcf) (pcf) (deg) No c 1384 SandSilt 1 860 1114 370 W1 d 1S85 Truh 2 660 650 225 W1 e 1385 Organic 3 ~0 890 150 W1200 I 1385

g ~ middot~ sc l 1387

~~ -~--~---~-~-----~-Wl --- ------Wl

o~--------~-------~----------~--------___________~-------~--------~-------~ 10 110 210 310 410 510 810 710 810_

bull GSTABL7 v2 FSmln1383

Safety Factors Ate Calculated By The Modified Bishop Method

lNillUIHCIWC

08TABL7 GSTABL7 by Garry H Gregory PE

SLOPE STABILITY ANALYSIS SYSTEM Modified Bishop Simplified Janbu or GLE Method of Slices (Includes Spencer amp Morgenstern- Price Type Analysis) Including PierPile Reinforcement Soil Nail Tieback Nonlinear Undrained Shear Strength Curved Phi Envelope Anisotropic Soil Fiber-Reinforced Soil Boundary Loads Water Surfaces Pseudo-Static amp Newmark Earthquake and Applied Forces

Analysis Run Date 112403 Time of Run 0316PM Run By Shield Engineering Inc Input Data Filename hGeo-Bnvironmental (0120)20031030105-01 Peterson-Puritan

OU2CPTpuritan t2in OUtput Filename hGeo-Bnvironmental (0120)20031030105-01 Peterson-Puritan

OU2CPTpuritan t20UT Unit System English Plotted Output Filename hGeo- Bnvironmental (0120)20031030105-01 Peterson-Puritan

OU2CPTpuritan t2PLT PROBLmt DESCRIPTION Cross Section 12

Boundary X-Left Y- Laft X- Right Y- Right Soil Type No (ft) (ft) (ft) (ft) Below Bnd

1 1000 6200 45150 6200 3 2 45150 62 00 45250 6600 3 3 bull 45250 6600 45550 6600 3 4 45550 6600 45650 6400 1 5 45650 64 00 49100 7200 2 6 491 00 72 00 70360 13600 2 7 70360 13600 76060 14000 2 8 76060 14000 798 60 14000 2 9 45660 6400 46600 5400 1

10 46600 5400 79860 5400 1 11 1000 5200 44000 5200 1 12 44000 5200 45150 6200 1

Default Y-Origin = OOO(ft) Default X-Plus Value = OOO(ft) Default Y-Plus Value = OOO(ft)

Soil Total Saturated Cohesion Friction Pore Pressure Pio1 Type Unit Wt Unit Wt Intercept Angle Pressure Constant Surface

No (pcf) (pcf) (psf) deg) Param (psf) No 1 860 1114 00 370 ooo oo 1 2 55 0 650 00 225 000 00 1 3 430 890 00 150 000 00 1

1 PIEZOMETRIC SURFACE(S) SPECIFIED Unit Weight of Water = 6246 (pcf) Piezometric Surface No 1 Specified by 4 Coordinate Points Pore Pressure Inclination Factor = 050

Point X- Water Y-Water No (ft) (ft)

1 1000 6100 2 45650 63 00 3 70360 8500 4 79860 8500

1 Surface(s) Initiate(amp) From Each Of 2000 Points Equally Spaced Along The Ground Surface Between X = 60000(ft)

and X = 61000(ft) Each Surface Terminates Between X = 69000(ft)

and X = 71000(ft) Unless Further Limitations Were Imposed The Minimum Elevation At Which A Surface Extends Is Y = 1000(ft) 1500(ft) Line Segments Define Each Trial Failure Surface Following Are Displayed The Ten Most Critical Of The Trial

Failure Surfaces Evaluated They Are Ordered -Most Critical Firat bull bull Safety Factors Are Calculated By The Modified Bishop Method bull Total Number of Trial Surfaces Attempted = 2000 Number of Trial SUrfaces With Valid FS = 2000 Statistical Data On All Valid FS Values

FS Max = 2774 FS Min = 1383 FS Ava 2039 Standard Deviation = 0437 Coefficient of Variation = 2143

Failure Surface Specified By 8 Coordinate Points Point X- Surf Y-Surf

No (ft) (ft) 1 605510 106472 2 620204 109490 3 634787 113 000 4 649244 116999 5 663559 121482 6 677714 126443

Slice No

1 2 3 4 5 6 7

7 691695 131878 B 695939 133694

Circle Center At X = 524163 Y = 540 505 Factor of Safety

Water Water Tie Tie Force Force Force Force

Width Weight Top Bot Norm Tan (ft) (lbs) (lbs) (lbs) (lbs) (lbs) 1~7 5677 00 00 o o 146 14796 00 oo 0 o 145 19569 00 oo o o 143 20084 00 00 o o 142 16461 00 oo o o 140 8854 00 oo o o 42 628 oo 0 0 0 o

and Radius = 441591

Barthquake Force surcharge

Hor Ver Load (1bs) (lbs) (lbs)

00 00 oo 00 00 00 00 0 0 00 oo 00 00 00 00 oo 0 0 00 00 00 00 00

Failure Surface Specified By 8 Coordinate Points Point X-Surf Y- Surf

No (ft) (ft) 1 603178 105770 2 617893 108681 3 632502 112082 4 646991 115966 5 661342 120331 6 675539 125170 7 689568 130480 8 700 741 135139

1 602 517 105571 2 617228 108504 3 631820 111 980 4 646273 115994 5 660567 120541 6 674 683 125614 7 688601 131206 8 690532 132066

bullbullbull 1384 bullbullbull Failure Surface Specified BY 8 Coordinate Points

Point X-Surf Y- Surf No (ft) (ft )

1 605045 106331 2 619775 109166 3 634378 112591 4 648832 116603 5 663112 121194 6 677196 126357 7 691059 13208~

8 691942 132490 Circle Center At X= 542 418 Y = 471781 and Radius 370776

Factor of Safetybullbullbull 1385 bull bullbull

Failure Surface Specified BY 8 Coordinate Points Point X-Surf Y-Surf

No (ft) (ft) 1 608683 107427 2 623417 110240 3 638035 113606 4 652515 117520

5 666837 121978 6 680982 126972 1 694928 132495 8 701347 135322

Circle Center At X = 542 414 Y 495423 and Radius = 393615 Factor of Safety

Point X- SUrf Y-Surf No (ft) (ft )

1 608258 107299 2 622975 110197 3 637 589 113580 4 652082 117445 5 666440 121788 6 680646 126603 1 694685 131886 8 704 811 136085

1 609489 107669 2 624224 110475 3 638847 113821 4 653336 117702 5 667673 122112 6 681838 127047 7 695812 132499 8 703952 136025

Circle Center At X= 541 469 Y = 505796 and Radius ~ 403896 Factor of Safety

bullbullbull 1385 Failure Surface Specified By 8 Coordinate Points

Point X-SUrf Y-Surf No (ft) (ft)

1 602472 105557 2 617224 108278 3 631861 111557 4 646363 115387 5 660710 119765 6 674881 124684 7 688855 130 136 8 699531 134775

Circle Center At X = 538676 Y 493 298 and Radius 392954 Factor of Safety

1386 Fail~re SUrface Specified By 7 Coordinate Points

Point X-Surf Y-SUrf No (ft) (ft)

1 604304 106109 2 619051 108851 3 633665 112232 4 648118 116246 5 662383 120885 6 676432 126140 7 690044 1)1919

Circle Center At X = 548681 Y = 446255 and Radius = 344665 Factor of Safety

Point X- SUrf Y-Surf No (ft) (ft)

1 600350 104918

hpuritan t 2 0UT Page 5

2 615118 107548 3 629769 110766

644 279 114 568 5 658625 118 947 6 672 785 123 897 7 686736 129409 8 697462 134152

Circle Center At X= 542 569 Y 472776 and Radius = 372 368 Factor of Safety

bullbullbull 1387 bullbullbull BND OF GSTABL7 OUTPUT

PROFIL hGeo- Bnvironmental (0120)20031030105- 01 Peterson-Puritan OU2CPTpuritan t2in V Cross Section t2 PattersonPuritan OU2 12 8 10 62 4515 62 3 4515 62 4525 66 3 4525 66 4555 66 3 4555 66 4565 64 1 4565 64 491 72 2 491 72 7036 136 2 7036 136 7606 140 2 7606 140 7986 140 2 4566 64 466 54 1 466 54 7986 54 1 10 52 440 52 1 440 52 4515 62 1 0 0 0 SOIL SandSiltTrash Organic 3 8596 11143 0 37 0 o 1 55 65 0 225 0 0 1 43 89 0 15 0 0 1 WATER 1 62 46 4 05 10 61 4565 63 7036 85 7986 85 CIRCL2 2000 1 600 610 690 710 10 15 0 o

bullbull If I j I

barcode 555340

barcodetext SDMS Doc ID 555340