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Home My WebLink About20180659.tiffAPPENDIX D Broken Arrow Investments, LLC - Derr Pit Project ,J&T Consulting, Inc. 2018-0659 PRELIMINARY SAND AND GRAVEL MINERAL EVALUATION 30 -ACRE PARCEL - NORTH OF 8m STREET AND EAST OF BALSAM AVENUE NORTHEAST 1/4 OF SECTION 4, TOWNSHIP 5 NORTH, RANGE 65 WEST GREELEY, WELD COUNTY, COLORADO TERRACON PROJECT NO. 20015242 JANUARY 11, 2002 Prepared for: DUST & DIRT EXCAVATING, LLC P.O. BOX 2295 GREELEY, COLORADO 80632 ATTN: MR. DOUG AND DARWIN DERR Prepared by: Terracon 301 North Howes Street Fort Collins, Colorado 80521 lierracon January 11, 2002 Dust & Dirt Excavating, LLC P.O. Box 2295 Greeley, Colorado 80632 Attn: Mr. Doug and Darwin Derr lierracon 301 N. Howes • P.O. Box 503 Fort Collins, Colorado 80521.0503 (970) 484-0359 Fax: (970) 484.0454 Re: Preliminary Sand and Gravel Mineral Evaluation Approximate 29 -Acre Parcel Located North of 8th Street and East of Balsam Avenue Northeast of Section 4, Township 5 North, Range 65 West Greeley, Weld County, Colorado Terracon Project No. 20015242 Terracon has completed a preliminary sand and gravel mineral evaluation for the approximate 29 -acre parcel situated on the east side of Balsam Avenue, approximately /2 - mile north of 8th Street, south of the Eaton Ditch in east Greeley, Colorado. This study was performed in general accordance with our Proposal No. D2001357 dated October 16, 2001. The results of our engineering study, including the boring location diagram, laboratory test results, test boring records conducted by Terracon and Layne -Western, and the conclusions and recommendations needed to aid in the consideration of this tract of land to be utilized as a sand and gravel pit from a geotechnical point of view are attached. Further details are provided in this mineral evaluation report. We appreciate the opportunity to be of service to you on this phase of your project. If you have any questions concerning this report, or if we may be of further service to you, please feel free to contact us at your convenience. Sincerely, 100 RtOin TERRACON cO•y�o A R •a1?:' �I .0. 27712 �; tj � ;.�"� David A. Richer, P. ',ilk �"....d•= �' ug . J • • e, P.E. Geotechnical Engines a Itt ze.._ Manager ffice Manager Copies to: Addressee (4) Arizona ■ Arkansas ■ Colorado IN Georgia ■ Idaho I Illinois IA Iowa • Kansas ■ Kentucky U Minnesota A Missouri ■ Montana Nebraska !w Nevada ■ New Mexico ■ Oklahoma III Tennessee IN Texas ■ Utah III Wisconsin ! Wyoming Quality Engineering Since 1965 TABLE OF CONTENTS Page No. Letter of Transmittal INTRODUCTION 1 PROPOSED CONSTRUCTION 1 SITE EXPLORATION 1 Field Exploration 2 Laboratory Tests 2 SITE CONDITIONS 3 SUBSURFACE CONDITIONS 3 Geology 3 Soil and Bedrock Conditions 4 Field and Laboratory Test Results 5 CONCLUSIONS AND DISCUSSION 5 GENERAL COMMENTS 6 APPENDIX A Vicinity Map — Figure 1 Soil Conservation Weld County, Colorado Map — Figure 2 Site Plan and Boring Location Diagram — Figure 3 Log of Borings — Terracon Test Boring Nos. 1, 2, and 3 and Layne-Westem Boring Nos. B-1, B-2, B-3, and B-4 APPENDIX B Grain -Size Distribution Curves APPENDIX C General Notes ii PRELIMINARY SAND AND GRAVEL MINERAL EVALUATION 30 -ACRE PARCEL- NORTH OF &" STREET AND EAST OF BALSAM AVENUE NORTHEAST'/4 OF SECTION 4, TOWNSHIP 5 NORTH, RANGE 65 WEST GREELEY, WELD COUNTY, COLORADO TERRACON PROJECT NO. 20015242 JANUARY 1 1, 2002 INTRODUCTION This report contains the results of our preliminary sand and gravel mineral evaluation for an approximate 29 -acre parcel situated on the east side of Balsam Avenue, approximately Y2 -mile north of 8th Street, south of the. Eaton Ditch in east Greeley, Colorado. The site is generally located in the North 1/4 of Section 4, Township 5 North, Range 65 West of the eth P.M., Weld County, Colorado. The purpose of these services is to provide information and geotechnical engineering recommendations relative to: • subsurface soil and bedrock conditions • groundwater conditions • physical properties and estimated quantities of overburden and granular materials. The conclusions and recommendations contained In this report are based upon the results of our field and laboratory testing, engineering analyses, and experience with similar soil conditions, and our understanding of the proposed project. PROPOSED CONSTRUCTION Based on the information provided, it is Terracon's understanding approximately 29 -acres of land situated on the east side of Balsam Avenue, approximately '%% mile north of 8th Street (Highway 263), south of the Eaton Ditch, presently being utilized as grazing and/or agricultural property as well as for the Oil Industry, is to be considered for a future gravel pit for the mining and extraction of sand and gravel reserves. SITE EXPLORATION The scope of the services performed for this project included a site reconnaissance by an engineering geologist, a subsurface exploration program, limited laboratory testing and engineering analysis. 1 Preliminary Sand and Gravel Mineral Evaluation 29 Acre Parcel - East of Balsam Avenue Greeley, Weld County, Colorado Project No. 20015242 Field Exploration Terracon A total of 7 test borings were drilled at the site during month of November of 2001. Terracon drilled 3 test borings, (identified as Test Boring Nos. 1, 2, and 3 shown on the enclosed Site Plan, Figure 3) on November 5 and 6, 2001 to approximate depths of 75 to 90 -feet below existing site grades. These 3 borings were advanced with a CME 75 truck -mounted drilling rig, utilizing 4 -1/4 -inch inside diameter hollow stem augers. After completing the first three borings, the client elected to obtain a specialized drill rig capable of extending the test borings to the bedrock stratum by means of air rotary equipment. An air rotary rig from Layne-Westem of Denver, Colorado, with assistance from the clients conducted the remaining 4 test borings, (identified as Test Boring Nos. B-1, B-2, B-3, and B-4 shown on the enclosed Site Plan, Figure 3) and logged the depths of the soil stratification to bedrock. These test borings extended to approximate depths of 82 to 90 -feet below existing site grades. The borings were located in the field by measurements from existing site features at the direction of Doug and Darwin Derr. After completing the related field services, the client hired a land surveyor, which provided the appropriate boring locations and elevations as presented in this report. Continuous lithologic logs of each boring drilled by Terracon (Test Boring Nos. 1, 2, and 3) were recorded by the engineering geologist during the drilling operations. At selected intervals, samples of the subsurface materials from these test borings were taken by driving a split -spoon sampler. Auger cutting samples from the air rotary Layne -Western Test Boring Nos. B-1, B-2, B-3, and B-4, were obtained by the client at selected intervals and were delivered to Terracon's.Greeley office for further evaluation and laboratory testing. Penetration resistance measurements were obtained by driving the split -spoon into the subsurface materials with a 140 -pound hammer falling 30 inches for the Terracon test borings. These penetration resistance values are a useful index to the consistency, relative density or hardness of the materials encountered. Groundwater measurements were made in Test Boring Nos, 1, 2, and 3 at the time of the initial site exploration. Groundwater measurements were not recorded or provided to Terracon for the Layne -Western borings prior to preparation of this report. Laboratory Testing All samples retrieved during the field exploration for Test Boring Nos. 1, 2, and 3 and the composite samples collected by the client for the Layne -Western borings were returned to the laboratory for observation by the project geotechnical engineer, and were classified in 2 t i Preliminary Sand and Gravel Mineral Evaluation 29 Acre Parcel — East of Balsam Avenue Greeley, Weld County, Colorado Project No. 20015242 Terracon accordance with the Unified Soil Classification System described in Appendix C. Samples of bedrock were classified in accordance with the general notes for Bedrock Classification. At that time, the field descriptions were confirmed or modified as necessary and an applicable laboratory testing program was formulated to determine engineering properties of the subsurface materials. Boring logs were prepared and are presented in Appendix A. Selected soil samples were tested for the following engineering properties: Water content • Grain size distribution Laboratory test results are presented. in. Appendix B. All laboratory tests were performed in general accordance with the applicableASTM, local or other accepted standards. SITE CONDITIONS The site is presently utilized as agricultural land and/or grazing land as well as by the Oil Industry. The site is relatively flat exhibiting positive surface drainage in the southeast direction. South of the site is vacant, undisturbed land typical in terrain as the subject site. West of the site is Balsam Avenue and north id the Eaton Ditch. The Cache La Poudre River is situated approximately 1 -mile south of the Site. An abandoned gravel pit is located directly west of the subject site on the west side of Balsam Avenue. SUBSURFACE CONDITIONS Geology The proposed area is located within the Colorado Piedmont section of the Great Plains physiographic province. The Colorado Piedmont, formed during Late Tertiary and Early Quaternary time (approximately 2,000,000 years ago), is a broad, erosional trench, which separates the Southern Rocky Mountain's from the High Plains. Structurally, the site lies along the western flank of the Denver Basin. During the Late Mesozoic and Early Cenozoic Periods (approximately 70,000,000 years ago), intense tectonic activity occurred, causing the uplifting of the Front Range and associated downwarping of the Denver Basin to the east. Relatively flat uplands and broad valleys characterize the present-day topography of the Colorado Piedmont in this region. The site is underlain by the Cretaceous Pierre Formation at approximate depths of 68 to greater than 90 -feet below existing site grades. The bedrock is ... -.may.. ,... ,, Preliminary Sand and Gravel Mineral Evaluation 29 Acre Parcel — East of Balsam Avenue Greeley, Weld County, Colorado Project No. 20015242 Terracon overlain by alluvial sands, gravels and clays of Pleistocene and/or Recent Age. The sand and gravel represent an ancient Terrace of the Poudre River. Soil and Bedrock Conditions The following describes the characteristics of the primary soil strata encountered at the site in order of increasing depths, along with current groundwater conditions: • Overburden Material - The overburden material consisted of slightly cohesive silty clayey sand (SC) with trace amounts of gravel and/or cobbles. This material was generally encountered at the surface and extended to depths of approximately 2-1/2 to 7 -1/2 -feet below the surface. An approximate 3 to 7 -foot Sandy Lean Clay lens was encountered at increased depths in Test Boring Nos. 1, 2, and 3 at approximately 47 to 56 -feet below site grades. The silty clayey sand layers are relatively fine in nature, medium dense in relative density and moist in -situ, while the clay layers are medium stiff to stiff in consistency and saturated. • Silty Sand with Gravel and Cobbles: - Well Graded Sand with Gravel, Well Graded Sand with Silt, Poorly Graded Sand with Gravel, Poorly Graded Gravel with Sand, Poorly Graded Gravel with Silt and Sand, Well Graded Sand with Gravel, and Well Graded Gravel with Sand — These strata were encountered in all borings at approximate depths of 2-1/2 to 7- 1/2 feet below the surface, and extended to the bedrock below in all but Test Boring Nos. B-3, and B-4, where bedrock was not encountered to maximum depths of exploration, 90 - feet. The sand and gravel stratum is poorly graded to well graded, loose to dense, contains moderate amounts of silt, and is moist to wet in -situ. it is estimated that the maximum size of gravel, and/or cobbles encountered with depth is typically less than 6 - inches diameter. • Weathered Claystone/Siltstone Bedrock - The bedrock stratum was encountered below the sand and gravel layer at approximate depths 68 to greater than 90 -feet feet below existing site grades. Groundwater - Groundwater was encountered in Test Boring Nos. 1, 2, and 3 at approximate depths of 4 to 4 -1/2 -feet below the surface at the time of the initial exploration. Water measurements were not recorded for the Layne-Westem test borings. However, it is anticipated that water levels would be relatively consistent at approximate depths of 4 to 6 -feet below site grades. Water levels in this area are subject to change due to seasonal variations and fluctuations in irrigation practices. 4 Preliminary Sand and Gravel Mineral Evaluation 29 Acre Parcel - East of Balsam Avenue Greeley, Weld County, Colorado Project No. 20015242 Terracon The stratification boundaries shown on the enclosed boring logs represent the approximate locations of changes in soil types; in -situ, the transition of materials may be gradual. According to the Soil Survey of Weld County, Colorado and as shown on the enclosed soil conservation map, Figure 2 in Appendix A, the soils at the site consist of: • 3 — Aquolls and Aquents, gravelly substratum • 10 — Bankard sandy loam, 0 to 3 percent slopes. 9 - y, ' 4! • 68 — Ustic Torriorhents, moderately steep. >/'I''`rf'� t" field and Laboratory Test Results Field test results indicate that the overburden silty clayey sand layers are medium dense in relative density. The coarse sand with gravel stratum varies from loose to dense in relative density and the bedrock stratum varies from weathered to hard with depth. CONCLUSIONS AND DISCUSSION It is Terracon's understanding that the area under evaluation, approximately 29 -net acres, based on plan line dimensions, is being considered as a potential gravel pit. Based on this preliminary investigation and number of test borings drilled at the site, it is Terracon's opinion the sand with gravel material encountered during the field exploration at various depths is suitable for use as construction aggregate material. The sand and gravel materials appear to satisfy the quality requirements to meet Colorado Department of Transportation specifications for Class 1 Structure Backfill, Class 1 to 3 Aggregate Base Course and could be processed to obtain Class 6 and 7 Aggregate Base Course if the course aggregate meets durability requirements. The gravel encountered appears to be of good quality and contains durable rock fragments composed of igneous and _metamorphic rock fragments. The overburden thickness encountered in the test borings ranges from approximately 2-1/2 to 11 -feet in thickness. The underlying granular sand with gravel strata thicknesses encountered during the drilling operations, (based on available information provided to Terracon for the Layne -Western borings) ranges from approximately 57 to 84 -1/2 -feet. Based on these thicknesses, plan line dimensions for the proposed 29 -acre parcel, and approximate areas of potential mining operations, there are approximately 0.3 million cubic yards of overburden material that will have to be removed to obtain approximately 3.5 million cubic yards of sand and gravel material. Hence, the average ratio of sand and gravel volume to overburden 5 71. Preliminary Sand and Gravel Mineral Evaluation 29 Acre Parcel -- East of Balsam Avenue Greeley, Weld County, Colorado Project No. 20015242 Terracon volume is approximately 11.6. The above referenced quantities are strictly estimated values based upon average thickness of layers, average depth to bedrock and straight-line plan dimensions. These estimates do not account for variations of thicknesses, actual areas of mining and/or anticipated cut slopes. Variations may be encountered in the field when gravel extraction/mining operations take place. Safe distances should be kept from property lines, roads,. and waterways. Since the. sand and gravel strata was encountered below the groundwater, temporary dewatering of the gravel pit or use of a drag line will be required to remove the sand and gravel material. Excavation and possibly dewatering of the pit should be performed in such a manner as to protect the adjacent properties, roads, railroads and waterways. GENERAL COMMENTS Variations in overburden and sand and gravel stratum thicknesses, the quantity of the sand and gravel, as well as the soil and groundwater conditions, may exist between test borings. These variations may not become evident until gravel/mining operations take place. Additional test borings, test pits, and laboratory analysis may be required prior to the proposed gravel/mining operations to more accurately evaluate the quantity and quality of the granular materials encountered at the site. 6 APPENDIX A I 1.1 too "4e C 0,36• ... .... 4 -,,,:si,-": 9 ,.... I.. A {� \ 4413 •—r�rf ��.�7� Y a Mv,A. M•^• Ba 1B qs�.. , r !N•0 a Y.r TVTY I:` a '5•,1.f.. 77,77i. •. qj J u 0r 1 .. A 66 L L 'a E 46$'s t-rf...-'"' Q l •,4' 66:" 4 t',•A -. `x,11 11 I1� a ;, ,:h� ° I DartY i�-.r- .�@7x� 8 A d!46 o i •qB / I „•' _ t. I -*/ 3 t. i • %• .1 f ti @ s. , oP la: ri i'll B tl -I 7 ir+u t•• a vif +x �+.s ......... .... ,.+.i,}§'6'! Graver i 6f6, ... DIAGRAM IS FOR GENERAL LOGARON ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES; 11 �•' FIGURE I : SITE VICINITY MAP PROPOSED DERR GRAVEL PIT eAST or BALSAM AVE.. NORTH OP 8th T. GR6CL Y, COLORADO Project Mngn Deelgned Oyr OAR Checked bye OAR Approved Ey, OAR lrer'r con 301 N. Howes Street Port Collins, Colorado 80521 pr°Ject N 20015242 5c7la: NTS Date: 1/10/02 O •Bs Br 5DC ,14b Nstwe 5242rlG Nuns No. 1 G8 3 10 I0 3 3 10 N C ACA/d !a FOR 4444 LOCA!!OM Ora,. PAD !f ACT ■!gym FOR CGAISTRUCTICA PURPOSES FIGURE 2: SOIL CONSERVATION PROPOSED D RRGRGRAVEL PIT A5T or DAl5AM AVG. N0RTM Or 0th 5T. GRLM'. COLORADO a.+c.e eP 0144 AR Append Sr OAR 1rrrracon 30! H. Plows 5vO6 Pat Cou.e, Gd>ado 2052! !242:9G2 ny.a w. Soto 20015242 ! •- l 2O Ora I/9/O2 O.wm ^'"'. 2 SDE FIGURE 3 5RE DIAGRAM PRO'O5E0 DERR. GRAVEL PIT y,5; or SALSAM AVE., NORM Of eau, ST. GPZEtf+, COLORADO . 315 WIT ViOM FOR tCC•DIR, :'1 PURPOSES. LEGEND TE5T BORING NOS. 1. 2 t 3 DRILLED 5Y TERRACON ON NOVEMBER 5 4 G. 2001 (J� TE5T BORING NOS. 5-1. 5-2, 5-3 R 5-4 DRILLED BY LAYNE-WE5TERN r, ''. Or.6.012, e.. OAR I lrcrcacon ay, OAR 30, a. i.o.0 Street Cdune a 30'.2= rinse w. 20015242. •. l 2a Oar 9(02 Craw 11/2, 3:C 5242'G3 harm UP. 2 I I I 1 i i i i i r 1 LOG OF BORING NO. 1 Page 1 of 2 CU ENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE N!E Corner of Balsam Avenue &. 8th Street1 Greeley, Colorado PROJECT Derr Gravel Pit 1 GRAPHIC LOG DESCRIPTION Approx. Surface Elev.: 4628.64 ft DEPTH, IL USCS SYMBOL SAMPLES TESTS NUMBER TYPE RECOVERY, In. y `2, WATER CONTENT, % DRY UNIT Wf pci UNCONFINED STRENGTH, psi .. �';/ A SILTY CLAYEY SAND trace GRAVEL Tan, brown, dry to moist, loose 4 • Intermittent Sandy Lean Clay Layers s24.5 • ••. , a ;•' %.* SILTY SAND with. GRAVEL 5 — 1 SS 12 4 18 2 — — Tan, brown, moist to wet, loose to medium dense * Classified as Poorly Graded Sand with Gravel 4603.5 10 — 2 .SS 12 18 14 r,. _ 15 3 SS 12 96 12 8 E 20 4 SS 12 12 151 25 — — — • e;• '•' •: •• ;.': r'' :;�.• i SILTY SAND trace GRAVEL Tan, brown, moist to wet, loose to medium dense * Classified as Well Graded Sand with Silt 49 4579.5 30 -'5 SS 12 9 21 7 40 — A RS 12 24 17 8 F. Continued Next Page SG 7 RS 12 7 29 2 — i The stratification lines represent the approximate boundary lines ?, between son and rock types: in -situ, the transition may be gradual. n 1 WATER LEVEL OBSERVATIONS, ft BORING STARTED 11-5-01 WL V 4 WD X 3.8 AB BORING COMPLETED 11-5-01 WL �l= a1 lierracon RIG CME-75 FOREMAN ARS IIWL • Water Checked 24 Hrs, AB 4 APPROVED DAR JOB # 20015242 LOG OF BORING NO. 1 Page 2 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE NIE Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit N GRAPHIC LOG DESCRIPTION t] m Nlel S SAMPLES TESTS z > Z t= xw , g z zz ow SANDY LEAN CLAY as — _ dee Tan, gray, moist to wet, stiff to verystiff 4572.5 SILTY SAND with GRAVEL •• i; Tan, brown, moist to wet, loose to medium dense 88 4560.5 60 — A SS 1? 5n 11 A 65-= - = 70-= - = - WEATHERED SILTSTONE/CLAYSTONE 71 Gray, moist, moderately hard 4557.5 StLTSTONE/CLAYSTONB Gray, moist, hard to very hard --, 75 4553.5 75 — g An. 15 A BOTTOM OF BORING • The stratification lines represent the approximate boundary Ines between soil aid rock types: in -situ, the transition may be graduat. WATER LEVEL OBSERVATIONS, ft BORING STARTED WL g S• 11-5-01 4 WD 3.8 AB BORING COMPLETED WL V. lierracon 11-5-01 RIGCME-75 FOREMAN ARS WL Water Checked 24 Hrs. AB APPROVED DAR JOB # 20015242 LOG OF BORING NO. 2 Page 1 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER i SITE NM Corner of Balsam Avenue & 8th Street Greeley, Colorado GRAPHIC LOG • DESCRIPTION Approx. Surface Elev.: 4630.12 ft zs— — -_ 30— +' :a v " NUMBER R �A p TYPE v u v v RECOVERY, in. o v y SPT-N BLOWS/R. t ci o WATER 12- o :n to CONTENT, % i DRY UNIT WI' pct UNCONFINED STRENGTH, psf SANDY LEAN CLAY trace GRAVEL and A COBBLES 3 ,.!. Tan, gray, moist to wet, stiff to very stiff 4527SILTY / SAND with GRAVEL V .' '. Tan, brown, moist to wet, loose to medium dense * Cobbles Encountered f : * Classified as Silty Gravel with Sand f' 25 4605 SILTY SAND trace GRAVEL • •.7,'' ''� .'! ; Tan, brown, moist to wet, loose to medium dense Continued Next Page 35 — 5 AA 12 2R 21 6 40— 45.= 50 2 R AS 12 17 1R7 The stratification lines represent the approximate boundary between soil and rock types; In -situ, the transition may lines be gradual. WATER LEVEL OBSERVATIONS, ft - • BORING STARTED. 11-5-01 WIL . V. 4.5 wD BORING COMPLETED 11-6-01 errac■on RIG CME-75 FOREMAN AR$ IL Initial Water Level Reading APPROVED DAR JOB # 20015242_ LOG OF BORING NO. 2 Page 2 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE NIE Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit S z 0,.: DESCRIPTION ± w 0 °O° SAMPLES TESTS m 2 m n' a o w 8 zo o. uJm rem, 8 5 0 z SI 1. Z oz w z St •`` SILTY SAND trace GRAVED — — $5= — = eo — 85— 70— 75 — - — Tan, brown, moist to wet, loose to medium dense 4574 // i SANDY LEAN CLAY Tan, gray, moist to wet, stiff to very stiff so 4570 v2 ..J r', F.,.:: SLTY SAND with.GRAVEL, Tan, brown, moist to wet, loose to medium dense /482 WEATHERED SILTSTONE/CLAYSTONE 4548 \Gray mois�tt,, moderately hard I ---,. 8 i i 1 s6 -4 50!0.3 16•I \Gray, moist, hard to very hard * intermittent Sandstone Lenses BOTTOM OF BORING n The stratification lines represent the approximate boundary lines ill batmen soil and rock typist In -situ, the transition may be tradual. I WATER LEVEL OBSERVATIONS, ft -' - Vier COf1 BORING STARTED 11-5-01- ,1 WL . 14 4.5 WD I BORING COMPLETED 11-6-01 i W RIG CME-75 FOREMAN ARS g__.. Initial Water Level Reading . APPROVED DAR JOB # 20015242 LOG OF BORING NO. 3 Page l of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit 'GRAPHIC LOG DESCRIPTION Approx Surface Elev.: 4630.58 ft E o USCS SYMBOL SAMPLES TESTS NUMBER TYPE RECOVERY, in. .� zi �O U m WATER CONTENT, % DRY UNIT WI Pei UNCONFINED STRENGTH, psi SANDY LEAN CLAY trace GRAVEL — = 2.8 Tan, gray, moist to wet, stiff to very stiff 4828 ; r' 'r. SILTY SAND with GRAVEL Tan, brown, moist to wet, loose to medium g dense * Cobbles Encountered • Classified as Well Graded Sand with Gravel AVM5 8 - 1 SS 12 15 inn — 10-= - 15 7 SS 12 25 115 20= — 'I SS 12 41 15 a So = SILTY SAND trace GRAVEL Tan, brown, moist to wet, loose to medium dense 47 4583.5 40 - 4 SS 12 nn 15 4 45 — SO- I �� SANDY LEAN CLAY Tan, gray, moist to wet, stiff to very stiff 4 5 - Continued Next Page The stratification lines represent the approodmate boundary Ilnea between soil and rock types: in -situ, the transition maybe gradual. i VVATER LEVEL OBSERVATIONS, ft irerraconRIG BORING STARTED 114.01 WL g 4.5 WD Z BORING COMPLETED 11-6-01 WL Z 3' CME.75 FOREMAN ARS RN_ Initial Water Level Reading APPROVED DAR _JOB # 20015242 LOG OF BORING NO. 3 Page 2 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE WE Corner of Balsam Avenue & 8th Street • Greeley, Colorado PROJECT Derr Gravel Pit DEPTH, IL USCS SYMBOL SAMPLES TESTS GRAPHIC LOG DESCRIPTION a W fa z a RECOVERY, in. z l -J COCO WATER CONTENT, % DRY UNITWT Pcf UNCONFINED STRENGTH, psf : • SILTY SAND with GRAVEL ' ' `+ Tan, brown, moist to wet, loose to medium dense _ 55 - 5 SS 17 511 1R 4 • :.... , * Cobbles Encountered so = , . 70 .,.. R AC 147 f. . ' :.i': •.r• • 86 4544.5 E 85-- W.451 WEATHERED SILTST9NE/CLAYSTO iW 4543.5 IFNI\Gray. moist, moderately hard = SILTSTONE1CLAYSTONE "- '�Gray, hard to hard -' 7 Ac 17 s moist, very 90 BOTTOM OF BORING The stratification lines represent the approximate boundary lines between soil and rock types: in -situ, the transition may be gradual. E .00.............. E WATER LEVEL OBSERVATIONS, ft lierr BORING STARTED 11-8-01 I WL Z 4.5 WD X BORING COMPLETED 114-01 IwLZ acan • • RIG CME-75 FOREMAN ARS WL .Initial Water Level Reading APPROVED DAR JOB # 20015242 I LOG OF BORING NO. B1 Page 1 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit 0 DESCRIPTION Approx. Surface Elev.: 4628.24 ft a c m c� 8 SAMPLES TESTS n z a >: g re t O wit VI }.'a z> 8 e I w W §E. %j/Tan, SANDY LEAN CLAY trace GRAVED — = 5 — 1° gray, moist to wet, stiff to very stiff s 4623 .. Y SILTY SAND with GRAVEL Tan, brown, moist to wet, loose to medium dense * Classified as Poorly Graded Gravel with Sand 25 a4803 - 15 20 1 AC _ — 25 _= '= 3°. -' 2 AC .'• •' .2 ;r;. SILTY SAUD trace GRAVEL Tan, brown, moist to wet, loose to medium dense 37 4591 — 35 — 3 AC _ 40 — 4 AC • .: ; .: • ''' '' 1.1'. SILTY SANQ with GRAVEL Tan, brown, moist to wet, loose to medium dense • Classified as Poorly Graded Gravel with Sand 50 4,578 = 5 AC = 5° — 6 AC Continued Next Page — $ The stratification lines represent the approximate boundary lines n between soli and rook types: In -situ, the transition may be gradual. IWATER LEVEL OBSERVATIONS, ft erracon BORING STARTED � 11-8-01 Pa WLU,� COMPLETED D 11-6-01 1111.II R GRING FOREMAN ARS $kwt'•APPROVED DAR _JOB # 20015242 Is LOG OF BORING NO. B1 Pape 2of2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit SAMPLES TESTS GRAPHIC LOG DESCRIPTION o m r3 g g z at - '- ° x �w ae W~ gg coi 5 E oh. w zZ o,� 'it SILTY SAND with GRAVEL trace — 7 AC ' :' COBBLES Tan, brown, moist to wet, loose to medium dense — 55 .:' :.,. * Classified as Poorly Graded Gravel with Silt and Sand _ — — = 6'= 8 AC . . — 9 AC : :., 70 — 10 AC — 80 11 AC ::., ,. 82 = 12 AC _joss WEATHERED SILTSTONE/CLAYSTONq 4 ° ,Grayy moist, moderately hard / _ 85 SILTST( NE./CLAYSTONE 4543 — 1R AC Gray, tan, moist, hard to very hard " Intermittent Sandstone Lenses 85 BOTTOM OF BORING The stratification lines represent the approximate boundary lines between coil and rock types: in -situ, the transition may be gradual. WATER LEVEL OBSERVATIONS, ft err Con BORING STARTED 11.6-01 WL g xBORING COMPLETED 11-6-01 WL RIG LW -AR FOREMAN E AN ARS WL APPROVED DAR JOB # 20015242 1 i i i I I r LOG OF BORING NO. B2 Page 1 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER i 5ITE NIE Comer of Balsam Avenue 8<8th Street Greeley, Colorado PROJECT Derr Gravel Pit GRAPHIC LOG DESCRIPTION Approx. Surface Elev.: 4628.81 ft _ IQ 0 USCS SYMBOL SAMPLES 1 TESTS NUMBER TYPE .4 Q a SPT-N BLOWS! R. WATER CONTENT, % DRY UNIT WP Pd UNCONFINED STRENGTH, psi j •7.5 SILTY CLAY SAND trace GRAVEL — 5 Tan, brown, dry to moist, loose 4621.5 _ 10 1 AC • . ;•` : . • ' .'; : •, SILT SAND with GRAVEL Tan, brown, moist to wet, loose to medium dense ` Classified as Well Graded Sand with Gravel 37 4592 ..-:.2 15 AC - 20 — 3 AC = — 4 AC :1::: 35 =7 - __ 40 AC ', SILTY CLAYEY SAND trace GRAVEL, Tan, brown, moist to wet, loose to medium dense 42 4387 - 45 — 8 AC ' I ` • SILTY SAND with GRAVEL Tan, brown, moist to wet, loose to medium dense Continued Next Page. _ The stratification lines represent the appro:dmate boundary lines between soil and rock types: in•s@u, the transition may be gradual. i WATER LEVEL OBSERVATIONS, ft 11"erracon ` BORING STARTED 11-6-01 WL g X BORING COMPLETED 11-6-01 VL Z ,-ARS t RIG LW -AR FOREMAN a V�- APPROVED DAR JOB # 20015242 LOG OF BORING NO. B2 Page 2 of 2 CLIENT Doug and Darwin Don ARCHITECT I ENGINEER SITE ME Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit GRAPHIC LOG DESCRIPTION DEPTH, fL USCS SYMBOL SAMPLES TESTS NUMBER TYPE RECOVERY, In. t 9 a53 max WATER CONTENT, % DRY UNIT Wf pot UNCONFINED STRENGTH, psf • :.,. . • ., .j, , . SILTY SAND with GRAVEL = 10 AC Tan, brown, moist to wet, loose to medium dense • Classified as Poorly Graded Sand with Gravel 87.5 s so 11 AC _ _ se 12 AC m— 13 AC' .•�. • r;.., °• ;:; .:. s • :. SILTY SAND with GRAVEL and COBBLES Tan, brown, moist to wet, loose to medium dense 81 4548 14 AC — 15 AC We WEATHERED SILTSTONE/CLAYSTONE 4547 82 \Gray, moist, moderately hard / 4546 1R AC i i i i i x ISILTSTONE/CIAYSTONE ' ray, tan, moist, hard to very hard BOTTOM OF BORING The stratllicadon lines represent the approximate boundary lines I betweeneod and rock types: in -situ, the hematitic may be gradual. WATER LEVEL OBSERVATIONS, ft 1 re: rfRIG BORING STARTED 11-6-01 t WL " V. I BORING COMPLETED 11.6-01 I WL 2 2 LW -AR FOREMAN ARS i WL APPROVED DAR JOB # 20015242 i 1 I CLIENT i i LOG OF BORING NO. B3 Doug and Darwin Derr SITE NIE Corner of Balsam Avenue & 8th Street Greeley, Colorado 8 c1 S et DESCRIPTION 4 rL SANDY LEAN CLAY trace GRAVEL 2.5 Tan, gray, moist to wet, stiff to very stiff SILTY sANp with GRAVEL Tan, brown, moist to wet, loose to medium dense * Classified as Poorly Graded Gravel with Sand • Classified as Well Graded Gravel with Sand Continued Next Page The stratIDeation lines represent the apprbodr ate boundary lines between soli and rook types: in -situ, the transition may be gradual. WATER LEVEL OBSERVATIONS, ft z ARCHITECT I ENGINEER PROJECT 5_ 10 15 1 20 25 35 004.1 40- 45 USCS SYMBOL W 2 z 2 3 4 5 Derr Gravel Pit SAMPLES a AC AC AC AC AC RECOVERY. in. d (5,`.24�O(5,`.24 Q 3 8 0 H z e8 Page 1 of 2 TESTS 6 AC AC 8 9 AC AC lierracon BORING STARTED 114:41, BORING COMPLETED 11-6-01 RIG LW AR APPROVED OAR FOREMAN ARG JOB # 20015242 LOG OF BORING NO. B3 Page 2 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado GRAPHIC L DESCRIPTION n a w N 0 NUMBER 7 o n n n n n TYPE RECOVERY, in. SPT-N BLOWS / 1t. WATER CONTENT,% DRY UNIT WT Pc UNCONFINED STRENGTH, psf SILTY SAND with GRAVEL Tan, brown, moist to wet, loose to medium dense , 67 ;;:;. SILTY SAND with GRAVEL trace • COBBLES •. •• . 5. '>'' Tan, brown, moist to wet, loose to medium dense * Classified as Poorly Graded Gravel with Sand Intermittent Clay Lenses ' * ,i SILTY SAND with GRAVEL and COBBLES •:':.... :..` .r Tan, brown, moist to wet, loose to medium dense BOTTOM OF BORING The stratification lines represent the approximate boundary lines between sail and rook,types: in.sltu, the transition may be gradual. WATER LEVEL OBSERVATIONS, ft lierraconRIG BORING STARTED 11-6-01 WL U I BORING COMPLETED 11-6-01 WL Z X LW -AR FOREMAN ARS APPROVED DAR JOB # 20015242 I� CLIENT r LOG OF BORING NO. B4 Doug and Darwin Derr SITE NM Corner of Balsam Avenue & 8th Street Greeley, Colorado ARCHITECT / ENGINEER PROJECT a. 0 SANDY LEAN CLAY trace GRAVEL /S2.8 Tan, gra_y, moist to wet, stiff to very stiff 4629 SILTY SAND with GRAVEL Tart, brown, moist to wet, loose to medium dense " Classified as Well Graded Sand with Silt and Gravel DESCRIPTION Approx. Surface Elev.: 4631.47 ft USCS SYMBOL Derr Gravel Pit SAMPLES Page 1 of 2 TESTS W m 2 a RECOVERY. in. Z~ nm 2 • Intermittent Clay Lenses • Classified as Poorly Graded Gravel with Silt and Sand * Classified as Poorly Graded Gravel with Sand Continued Next Page The stratitk Lion ilnes represent the approximate boundary Ines between soil and rock types: In -situ, the transition may be gradual. 5 10 1 AC 15 2 AC 20 26 30 3 AC .4 AC 5 AC 36 6 AC 40 50 — _ 7 AC 8 AC 9 AC WATER LEVEL OBSERVATIONS, ft WL WL L S if: rrac or BORING STARTED 11 -6 -Of BORING COMPLETED 11-6-01 RIG LW -AR FOREMAN ARS APPROVED DAR JOB # 20015242 LOG OF BORING NO. B4 Page 2 of 2 CLIENT Doug and Darwin Derr ARCHITECT / ENGINEER SITE WE Corner of Balsam Avenue & 8th Street Greeley, Colorado PROJECT Derr Gravel Pit g V _ DESCRIPTION � C O J >- � tJ) j SAMPLES TESTS cc is m Z W I- � O a - Z - itat58 KZ g Z � cI. c zZ O w n :'�ss� ARVli _ 55 - 10 AC . • • :': ':•' "•'•' ''' ;,r : SILTY SAND with GRAVEL trace COBBLES Tan, brown, moist to wet, loose to medium dense Classified as Poorly Graded Gravel with Sand 4559.5 — 11 AC _ 65 12 AC -- 13 AC - — — 14 AC • . ,. :'' '.• r - :.,. SILTY SAND with GRAVEL and COBBLES Tan, brown, moist to wet, loose to medium dense 97 4544.5 75 — _ 80 15 AC — e5 M 16 AC — 17 AC r k c3 BOTTOM OF BORING y c§ The stratification lines represent the appreedmads boundary lines gbetween soN and rock types: In -situ, the transition may be gradual. i WATER LEVEL OBSERVATIONS, ft lierracon BORING STARTED 11-6-01 A WL S BORING COMPLETED 11.6-01 WL RIG LW -AR FOREMAN ARS WL APPROVED DAR JOB # 20015242, U.S. SIEVE OPENING IN INCHES 6 4 3 215 1 1123f6 3 4 6 810 7418 20 30 40 50 00 1001 100 011 . 85 80 �o11r 65111 Wg :III r 40 o. 35 2 • I COBBLES 11110113 U.S. SIEVE NUMBERS 10 1 GRAIN SIZE IN MILLIMETERS GRAVEL coarse I Specimen Identification. 1 of 3 9.0ft 39.0ft 14.0ft 80.0ft 24.0ft Specimen Identification • • 1 9.0ft 1 2 3 39.0ft 14.0ft 80.0ft 24.0ft SAND 0.1 coarse 1 medium I fine • Classification POORLY GRADED SAND with GRAVEL(SP) WELL -GRADED SAND with SILT(SW-SM) SILTY GRAVEL with SAND(GM) SILTY SAND with GRAVEL(SM) WELL -GRADED SAND with GRAVEL(SW) D100 25 25 37.5 12.5 19 D60 5.879 0.955 7.417 1.406 3.1.36. D30 1.271 0.474 0.85 0.294 1.032 D10 0.319 0.094 0.277 HYDROMETER 0.01 SILT OR CLAY LL NP NP NP NP NP %Gravel 44.0 5.0 49.0 15.0 28.0 PL NP NP NP NP NP %Sand 53.0 86.0 38.0 71.0 68.0 PI NP NP NP NP NP 0.86 2.49 1.23 0.001 18.42 10.11 11.34 %Silt I %Clay 3.0 9.0 13.0 14.0 4.0 [err acon GRAIN SIZE DISTRIBUTION Project: Derr Gravel Pit Site: N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado Job #: 20015242 Date: 1-8-02 I I I I f I a us U.S. SIEVE OPENING IN INCHES 6 4 2 13/4 U.S. SIEVE NUMBERS 140 WI�� LY'1I I I � � II 1 II EIII�I�N0I��s�i1�1�pin ��6511111 Foll11111111111111111111 ��I1111111 "--IINt'-- � INII111 _ 331111 1111111' II 1! IIIl��i ll�IIII „�IE��,�,��..� 1111111 MUM! IIIII��illlll��\\��II►11�ii�IN11111JINN 'inn 6MEE MUM IIIII'o'I'u"iII'II;'"i 1351111 IOU1111 Sao 1. 1 o:, HYDROMETER 11111111 COBBLES GRAIN SIZE IN MILLIMETERS GRAVEL SAND coerea fine coarse I medium J fine 0.01 SILT OR CLAY Specimen Identification Ri 10.0ft el40.0ft B1 55.0ft Classification POORLY GRADED GRAVEL with SAND(GP) POORLY GRADED GRAVEL with SAND(GP) LL NP NP NP PL NP NP PI .NP NP 82 15.0ft B2 20.0ft POORLY GRADED GRAVEL with SILT and SAND(GP-GM SILTY SAND with GRAVEL(SM) NP NP NP NP NP Specimen Identification • B1 10.0ft B1 40.0ft WELL -GRADED SAND with GRAVEL(SW) D100 50 75 D60 20.82 D30 5.993 D10 0.425 m A 0 B1 55.0ft 42, 15.0ft 62 20.0ft 75 37.5 37.5 10.41 9.5 4.75 1.92 2.202 1.85 0.425 0.629 0.601 0.425 0.18 NP %Gravel 74.0 NP %Sand 23.0 NP 4.06 0.77 0.85 1.14 48.99 17.32 22.35 10,67 %Silt I %Clay 3.0 54.0 _ 51.0. 40.0 26.0 45.0 44.0 4'0.0 71.0 1.0 5.0 20.0 3.0 1.lacDn GRAIN SIZE DISTRIBUTION Project: Derr Gravel Pit Site: N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado Job #: 20015242 Date: 1-8-02 ».....W....................�,....».....�.._. ,....w........,.._.. . p MEMO u 100 95 90 85 80 75 70 65 A so 55 IA15o IT. 2 45 35 30 25 20 15 10 5 U.S. SIEVE OPENING IN INCHES I U.S. SIEVE NUMBERS 6 4 2 1.5 1 314 1123 3 4 8 . a10 1416 20 30 40 60 80 100140200 k-1\ l 1 I r r I I t I I I HYDROMETER r 0.1 0.01 100 10 1 GRAIN SIZE IN MILLIMETERS COBBLES GRAVEL coarse I fine SAND SILT OR CLAY 0.001 Specimen Identification B2 55.0ft 0 B3 5.0ft B3 30.0ft B3 70.0ft B4 5.0ft Specimen Identification B2 55.0ft B3 5.0ft B3 30.0ft B3 70.0ft B4 5.0ft Classification POORLY GRADED SAND with GRAVEL(SP) POORLY GRADED GRAVEL with SAND(GP) WELL -GRADED GRAVEL with SAND(GW) POORLY GRADED GRAVEL with SAND(GP) LL PL NP NP NP NP NP NP NP NP WELL -GRADED SAND with SILT and GRAVEL(SW-8M) NP NP %Sand 49.0 33.0 33.0 14.0 57.0 D100 75 50 _ 50 100 25 1Ferracon D60 13.879 19.63 10.41 56.537 3.172 D30 1.451 2.739 3.959 38.494 0.85 D10 0.425 _ 0.425 1.085 0.85 0.075 %Gravel 49.0 63.0 66.0 67.0 33.0 PI Cc Cu NP 0.36 32.66 NP 0.90 46.19 NP 1.39 9.59 NP 30.83 66.51. NP 3.04 42.30 %Silt 1 %Clay 2.0 4.0 1.0 2.0 10.0 GRAIN SIZE DISTRIBUTION Project: Derr Gravel Pit Site: NM Corner of Balsam Avenue 818th Street Greeley, Colorado Job #: 20015242 Date: 1-8-02 U.S. SIEVE OPENING IN INCHES 6 4 2 1.6 1 3/4 U.S. SIEVE NUMBERS 110 1410 20 30 40 e0 80 100140200 HYDROMETER : III= Iiiii. II I 1 95 JIIIIIIIIIIIIII IMIIIIIII 11111111 All 1111111111111 111111 75 1111111111.111IIIIIIIIIIIIIII Ellil �I■■ i111111P1111111. iiIIIIII 1 11111 11111141'111111111111111 145 I I Arm T., : u� 'iI'Uiihi �` itio : i I I s �IIu 0 100 COBBLES Specimen Identification Specimen Identification • B4 25.0ft P 35.0ft B4 55.0ft I A 25.0ft 35.0ft 55.0ft 10 GRAVEL fine I'll 1 GRAIN SIZE IN MILLIMETERS SAND come I medium I Classification 0.1 OORLY GRADED GRAVEL with SILT and SAND(GP-GM POORLY GRADED GRAVEL With SAND(GP) POORLY GRADED GRAVEL with SAND(GP) D100 50 75 100 irerracon 0 P D60 10.897 _ 23.665 38.718 030 1.214 2.244 2.963 D10 0,15 0.62 0.518 0.01 SILT OR CLAY LL NP NP NP %Gravel 53.0 57.0 _ 57.0 PL NP NP NP %Sand 40.0 42.0 35.0 Pi NP NP NP GRAIN SIZE DISTRIE3UTION %Silt 0.90 0.34 0.44 %Clay 7.0 1.0 1.0 Project Derr Gravel Pit Ste: N/E Corner of Balsam Avenue & 8th Street Greeley, Colorado Job #: 20015242 Date: 1-8-02 0.001 Cu 72.65 38.15 74.73 Sheet 1 of 1 Borehole Depth ft Liquid Limn Plastic Urn Plasticity Index Maximum Size (nun) %< Qc) Sieve- USCS ification Water Content (%) Dry unit Weight (Pct) Satur- anon (%) V°d Ratio 1 4.0 16.2 1 9.0 NP NP NP 25 In 3 SP 14.6 1 14.0 12.8 1 19.0 15.1 1 29.0 21.7 1 39.0 NP NP NP 25 iN_ 9 SW-SM 17.0 1 49.0 292 1 59.0 11.9 1 75.0 15.8 , 2 4.0 10.3 2 9.0 15.9 2 14.0 NP NP NP 37.5,/i 13 GM 15.0 2 19.0 15.4 2 34.0 21.6 - 2 49.0 _ 19.7 2 80.0 NP NP NP 12.5 14 SM 2 84.0 ... 26.1 3 4.0 13.3 3 14.0 11.5 3 24.0 NP NP NP 19 t v 4 SW 15.4 3 39.0 16.4 3 54.0 16.4 3 69.0 14.7 3 70.0 _ 5.7 3 89.0 17:8 B1 10.0 NP NP ' NP 50 f' 3 GP B1 40.0 NP NP NP 75 T' 1 GP B1 55.0 NP NP NP 75 t' 5 GP -GM B2 15.0 NP NP NP 37.5 ble 20 SM ' 82 20.0 NP NP NP 37.5 As" 3 SW B2 55.0 NP NP NP 75 p P 2 sp B3 5.0 NP NP NP 50 4 `" 4 GP B3 30.0 NP NP NP 50 2N 1 GW B3 70.0 NP NP NP 100 41 2 , GP B4 5.0 NP NP . NP 25 7" 10 SW-SM 64 25.0 NP NP NP 50 2' 7 GP -GM . B4 35.0 NP NP NP 75 V 1 GP B4 55.0 NP NP NP 100 y" 1 GP I[err ac n SUMMARY OF LABORATORY RESULTS Project: Derr Gravel Pit site•. WE Corner of Balsam Avenue & 8th Street Greeley, Colorado Job #: 20015242 Date: 1-8-02 Subsurface Exploration Report Proposed Slurry Wall Sand & Gravel Pit Part of Sec 4, T5N, R65W, 6tn P.M. Greeley, Colorado December 3, 2006 Two Rivers Testing, Inc. 1601 37th` Street Evans, Colorado 80620 (970) 339-4092 Two Rivers besting, inc. 1601 37th Street Evans, CO 80620 (970) 339-4092 (970) 339-4762 Fax December 3, 2006 Mr. Darwin Derr Dust & Dirt Excavating 641 North 1st Avenue Greeley, CO 80631 Re: Proposed Slurry Wall Part of Sec 4, Township 5 North, Range 65 West, 6th P.M. Greeley, CO Dear Mr. Derr: We are pleased to submit this Subsurface Exploration Report for the site referenced above, as you requested. Based on our investigation of this site and the subsurface conditions encountered, it is our opinion the site is suitable for the proposed construction, providing the design criteria and recommendations set forth in this report are met. The enclosed report presents our findings of the subsurface conditions and our recommendations based upon these findings. Sincerely, TWO RIVERS TESTING, INC. Tom Cope, P.E. President Cc: 2006-201 Subsurface Exploration Report Proposed Slurry Wall Part of Section 4, Township 5 North, Range 65 West, 6th P.M. Greeley, Colorado Prepared for: Dust and Dirt Excavating Project # 2006-201 Prepared By: Two Rivers Testing, Inc. 1601 37th Street Evans, Colorado 80620 (970) 339-4092 December 3, 2006 TABLE OF CONTENTS Report Scope Site Location and Description 1 Site Exploration 1 Laboratory Tests and Examinations 2 Subsoil and Ground Water Conditions 2 Recommendations and Discussion 3 General Comments 4 Appendix A Test Boring Location Diagram Boring Logs Appendix B Summary of Test Results, Subsurface Exploration SCOPE This report presents the results of a subsurface exploration for a proposed sand and gravel pit east of Greeley. The investigation was performed for the owners to identify information that would assist in the installation of a slurry wall. The investigation consisted of drilling 15 test borings, inserting water monitoring wells for each boring and laboratory testing of samples obtained from these borings. Information concerning the monitoring well installation is not included in our scope of work, but was being provided by another consultant. The objectives of this study were to (1) evaluate the subsurface conditions at the site relative to the proposed slurry wall construction (2) identify groundwater and (3) identify bedrock depths. The conclusions and recommendations presented in this report are based upon analysis of field and laboratory data. SITE LOCATION AND DESCRIPTION The site is located north of East 8th Street and east of Balsam Ave in Part of Section 4, Township 5 North, Range 65 West of the Sixth Principal Meridian, Greeley, Colorado. At the time of drilling, the site consisted of native grasses and weeds with an oil battery located east of the west entrance to the site. The main location for the sand and gravel mining had been leveled. SITE EXPLORATION The geotechnical field exploration was conducted October 16-18 and October 23-25, 2006 and consisted of drilling 15 test borings. The test borings are shown on the Bore Location Plan enclosed in Appendix A and include visual classifications of each soil, location of subsurface changes, and subsurface water level measurements at the time of this investigation. The locations of the test borings were determined by the client and field surveyed by the client. Table No. 1 provides a summary of the bore locations as provided by the client. The borings were advanced using a 9" exterior/6" interior dual wall percussion hammer drill pipe with continuous sampling done through a cyclone separator mounted on a Drill Systems AP 1000 drilling rig. Samples of the subsoil were obtained to determine an index of the soils with the results listed on the Summary of Test Results noting the depth of specific soils, groundwater levels and bedrock locations for each bore. A combination of hammer and reverse circulation drilling were utilized to obtain samples. Samples for use in the laboratory were sealed in the field and preserved at natural moisture content until time of testing. TABLE NO. 1 - BORE LOCATION DATA TRT BORE # D&D BORE # NORTHING EASTING EXISTING GROUND ELEVATION (FT) TOP OF WELL ELEVATION (FT) 1 1 1400384.332 3232400.544 4633.33 4635.78 2 3 1400366.071 3233172.936 4631.63 4633.70 3 5 1400354.778 3233959.471 4629,83 4632.40 4 7 1400949.048 3233916.872 4630.52 4633.23 5 8 1401305.720 3233832.300 4630.53 . 4632.91 6 11 1401437.642 3233152.121 4634.50 4637.06 7 13 1401410.230 3232418.749 4638.15 4640.65 8 14 1401071.219 3232405.372 4637.61 4640.25 9 12 1401373.829 3232778.833 4636.29 4638.77 10 9 1401324.403 3233462.537 4632.63 4635.43 11 15 1400927,414 3233248.678 4630.68 4633.52 12 2 1400414.170 3232770.927 4632.48 4635.05 13 4 1400403.192 3233516.356 4630.70 4633.41 14 6 1400601.020 3234300.943 4658.46 4661.07 15 10 1401826.023 3233413.749 4661.19 4663.81 * Northing, Easting, and Elevations provided by Dust & Dirt Excavating LABORATORY TESTS AND EXAMINATIONS Samples obtained from the test borings were subjected to testing and observation in the laboratory to provide a sound basis for determining the physical properties of the soils encountered. Moisture contents, percent passing # 200 sieve, and the USCS classification were determined. A summary of the test results and laboratory analysis can be found in Appendix B. SUBSOIL AND GROUND WATER CONDITIONS In summary, silty sand with gravel soils were encountered at the surface with varying levels of sand, gravel and cobble intermixed with lenses of clay. Below these soils, weathered and competent bedrock soils existed to the depths explored. 1) Upper Soils: Varying levels of silty sand with gravel soils exist at the surface to the bedrock encountered below. Below these soils exist varying levels of silt, sand, gravel and cobble mixed with intermittent layers of silty sandy clay. 2 2) Lower Soils: Below the upper soils, varying types of weathered and competent bedrock consisting of siltstone and claystone were present to the depths explored. Competent bedrock was present at depths ranging from forty-five feet (45') to greater than one hundred twenty feet (120') below existing surface. 3) Groundwater: Groundwater was encountered at depths ranging from eight feet (8') to forty feet (40'). Water levels in this area are subject to change due to seasonal variations and irrigation demands on and/or adjacent to the property. Table No. 2 summarizes the depth and elevation of the groundwater and competent bedrock. TABLE NO. 2 - SUMMARY OF BORE DATA TRT BORE # EXISTING GROUND ELEVATION (FT) DEPTH TO GROUND WATER (FT) ' ELEVATION TO GROUND WATER (FT) DEPTH TO COMPETENT BEDROCK (FT) ELEV. TO COMPETENT BEDROCK (FT) 1 4633.33 8.0 4625.3 45.5 4587.8 2 4631.63 9.0 4622.6 85.0 4546.6 3 4629.83 9.0 4620.8 86.0 4543.8 4 4630.52 11.0 4619.5 83.0 4547.5 5 4630.53 9.0 4621.5 82.0 4548.5 6 4634.50 15.0 4619.5 89.0 4545.5 7 4638.15 17.0 4621.1 77.0 4561.1 8 4637.61 13.0 4624.6 76.0 4561.6, 9 4636.29 15.0 4621:3 89.0 4547.3 10 4632.63 8.5 4624.1 84.5 4548.1 11 4630.68 11.0 4619.7 86.0 4544.7 12 4632.48 17.0 4615.5 74.0 4558.5 . 13 4630.70 9.0 4621.7 85.0 4545.7 14 4658.46 40.0 4618.5 >120 >4538.5 15 4661.19 35.0 4626.2 115.0 4546.2 RECOMMENDATIONS AND DISCUSSION Based upon the results of our investigation, we conclude that from a geotechnical standpoint, the site is suitable for the proposed construction with the following limitations listed below: The slurry wall is proposed to be hammer driven with slurry injection. The slurry wall should be installed a minimum of five feet (5') into competent bedrock or until refusal occurs. Some leakage may still occur through the siltstone bedrock stratum. A Geotechnical Engineer's representative should be on site to verify competent bedrock is encountered. GENERAL COMMENTS This report has been prepared to aid in the evaluation of the property and to assist the architect and/or engineer in the design of this project. In the event any changes in the design of the structures or their locations are planned, the conclusions and recommendations contained in this report will not be considered valid unless said changes are reviewed and conclusions of this report modified or approved in writing by Two Rivers Testing, Inc., the geotechnical engineer of record. The professional judgments expressed in this report meet the standard care of our profession. Every effort was made to provide comprehensive site coverage through careful locations of the test borings, while keeping the site investigation economically viable. Variations in soil and ground water conditions between test borings may be encountered during construction. In order to permit correlation between the reported subsurface conditions and the actual conditions and specifications as originally contemplated, it is recommended Two Rivers Testing, Inc. be retained to perform continuous construction review during the slurry wall installation. Two Rivers Testing, Inc. assumes no responsibility for compliance with the recommendations included in this report unless they have been retained to perform adequate on -site construction review during the course of construction. 4 TEST B©RI,NG LOCATION .:DIAGRAM SLURRY WALL DESIGN GREELEY, COLORADO -- TWO. RIVERS TESTING,,. INC. f6oj37th SirtEET EVANS, COLORADO 80620 (970) 339-4092 DATE: 11/8/06/06 SCALE:NTS PROD. NO:, : 2006-201-: DRAWN BY; TMC. - SHEET 1 OP 1 CHECKED: BY: -:TMC LOG OF TEST BORE -1 (Log 1 of 3) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description u1'".+?��. "5,'sar' .' L N o a H m 4 t9 co Z Q. J u) m O U N .co p c 0 a .N N o O ._E --) "O cr J x N -o - C U a 0 N O) H N e c- N C C. C O) Uco O N c iiiy fl..QS _ H (D i� m �' ,a""., ,. W..� •�• ter,,,..,. sty. ,. . ,:, ,. : r,..:,.. ra.:� , SILTY SAND WITH GRAVEL 4 6 _ _ SILTY SAND WITH GRAVEL k E.; . GROUNDWATER 10 Fks : ':a Kivroyr GRAVEL WITH COBBLE ♦ 11 12 .' 13 ....♦, 14 .; 16 17 18 - 19 ..♦♦• ....4 ♦♦.., ...♦, ♦♦♦.4 ♦♦♦.• ...♦ ..♦♦1 ♦♦..� a..... SILTY SAND & GRAVEL WITH °P�; COBBLE 20 '°°`;7 21 . 22 23 L. 24 4,0 25.Ne? dda'ctmDDD°D1 i°tta 4D$D� D.% D! V� ,,,4, ,D 4" 3��°D ,�. D D: Di The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/16/2006 Initial WL: 8' T.R.T. Boring Complete: 10/16/2006 WL: 8' ogged Water Checked: I 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 1 (Log 2 of 3) Client: Dust & Dirt.Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 20O6-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 ,Unconfined Strength (psf) c-- . a m co USCS/AASHTO SILTY SAND & GRAVEL WITH 26 COBBLE 27 28 29 • SILTY SAND WITH GRAVEL ff�' 30 BS ; 7.3 , 3.47 ; I GP 31 32'"- 34 35 36 37 38 39 40 41 ryr; y Rp� ':rte r s• sn,•: ,�<} SANDY SILTY CLAY 42 43 CLAYSTONE (WEATHERED- 44 BROWN/RUST) 45 CLAYST0NE-(GREY) 46 47 48 SILTSTONE 49 (GREYI 111 50 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/16/2006 Initial WL: 8' T R_ 1 Boring Complete: 10/16/2006 . 1 . WL: 8' Logged By: TM Water Checked: I 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 1 (Log 3 of 3) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description v r m o a F -co m ' m 0 Z o~- co R3-• o U co" �a U a .� c o F a Q : x vc 4 m a c� _ y a o N S r c o, c °' c ) a _ 3 to cn cc j D Sll TSTONE (GREYI 51 ; 119 i 1, , 52 74 , 53 54 104 I 55 :. 56 57 58 i 59 60 61 62 63 •. 64 -` 65 • 66 67 68 69 - 70 71 -- 72 - 73 -! 74 - 75 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/16/2006 Initial WL: 8' T.R.T. Boring Complete: 10/16/2006 WL: 8' . Logged By: TM Water Checked: t 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 2 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type p Z 3 COm Water Content (%) Dry Density (pcf) Liquid Limit x ID u a % Passing #200 Unconfined Strength (psf) Q co O _ cO cO co D SILTY SAND WITH GRAVEL - SILTY SAND & GRAVEL WITH "" , _ c _ °°:4 om" i - .A...,%. ° 1 ° °: °°° A. 4■... 0.•••: :■;: .f:�} .} .%"� ti:." ::r:: •r: %0, : ti• .ti ti:{' • ....... :' ti}f: •: ■•: K., COBBLE 8 GROUNDWATER 0 10 11 12 13 .15 16 17 " SILTY SAND WITH COBBLE 18 19 20 - - - - 21 22 23 24 . 25 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual Water Observations T • T� R. i • 1 T. Two Rivers Testing, Inc. Boring Started: 10/16/2006 Initial WL. 9 Boring Complete: 10/16/2006 WL: 9' Logged By- TM Water Checked: I 10/16/06 Approved By: TMC LOG OF TEST BORE - 2 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) c- . d 3 co /AA USCS SHTO ANININNIIIIIIINIMIIIIIIMIIII SILTY SAND WITH COBBLE 26 . ■ or 27 SILTY SAND WITH GRAVEL = 28--`=_-== 29 30 31 32 33 34 35 36 37 38 39 40 -=`= SILTY SAND & GRAVEL WITH ,moo go° COBBLE 41 42 .` 43 44 45 46 47 48Go 49 50 ..r -e.1 r0 o4: k0:'L VW: • r KI 34 V. °�, O aw -. The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10(16/2006 Initial WL_ 9' � T.R.T. Boring Complete: 10/1612006 �9, WL� Logged By: TM Water Checked: 10/16/05 Two Rivers Testing, inc. pproved By: TMC LOG OF TEST BORE - 2 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) c V g T C a) in a 0- Plastic Index * N a y 0 C m Q 3 o ccnn SILTY SAND & GRAVEL WITH . 51 t�r:Et COBBLE SANDY SILTY CLAY 53 -.. SILTY SAND WITH GRAVEL x f�}.. .. '+f r. ' 's{ r :i4<; r{ sue. : X -' . •• • ,• 54 55 56.i 57 58. 59 -' 60 61 62 63 64 -• 65 - SILTY SAND & GRAVEL WITH � ; J Ji0 ' Q 6Y040:. Q•e oQaa at 4144 a a. ii6.1 i Icp. �a44,44 030 COBBLE 66 68 69 70 71 72 73 74 ' 75 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual Water Observations - T . R. T . Two Rivers Testing, Inc. Boring Started: 10/16/2006 Initial WL: 9' Boring Complete: 10/16/2006 WL: 9' Logged TM Water Checked: I 10/16/06 r •By: Approved. By: TMC LOG OF TEST BORE - 2 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-NI (BLOWS/FT) Water Content (%) n; c a) 0 Liquid Limit Plastic Index Passing #200 Unconfined Strength (psf) Swell (psf) USCSIAASHTO 77 78 '� 79 - 80 81 `-' 82 83 84 85 is 86 87 88 89 90 91 92 93 • 94 95 -'I 96 97 98 99.: 100 .: 2w SILTY SAND & GRAVEL WITH o oo 0. pp pp ~ a -° -°N o�°o..: oa°� °° °` °° COBBLE SANDY SILTY CLAY SILTSTONE (GREY) 68 i 82 60 125 76 The stratification lines represent the approximate boundary lines between soil and rock types, Insitu, the transition may be gradual. Water Observations T.R.T.Boring Two Rivers Testing, Inc. Boring Started: 10/16/2006 Initial WL: 9' Complete: 10/16/2006 WL: 9' Logged By: TM Water Checked: 10/16/06 Approved By: TMC LOG OF TEST BORE - 3 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) U 3 ° U a c O Liquid Limit Plastic Index % Passing #200 N t c e D (A n 'm CO O z U ,w 9q"Hw. .'- sw t�z »`q, .4'J'R.: , ✓s ° :.. Y`. „r9:% � / . ., _..:..', ff r„ ''. S�', ,,,:<i,:. �h .-;.....,..: .;c.. �. ., �. _ .. a "n ". .. #r' S�??+9iu ".'1',37.,77.77r,..”''.-.7 SILTY SAND WITH GRAVEL 3 SILTY SAND & GRAVEL WITH '/� *r :re ;r'• e e- t•: -,t,5 COBBLE 11 13 14 15 16 17 GROUNDWATER 0 18 19 20 21 i 22 23 _s•eh 24 25 :��ac ieXe .eiw` etr_ o •�::rxe: r .r,rr'' "•e r- F yt F•rw ^;- :: r •- MP - The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Two T.R.T. Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 9' Boring Complete: 10/17/2006 WL: 9' Logged By: TM Water Checked: l 10/17/06 Approved By: TMC LOG OF TEST BORE - 3 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description ii 0 a F a� a N cn z d JO cnm o U m 3; U y c p �, 0 E :: o - x a U s d p o h cct3 n. o N aD o c- o c� c.) m Dv) cco n — a� _ U 0 0 26 SILTY SAND & GRAVEL WITH COBBLE 27 28 -• 29 30 31 32 33 34 .: 35.: 36 37 - 38 39 40.. 41 .: 42 %°off ,:. .. `;a fa �� ,0 Q 5%60 ° SANDY SILTY CLAY SILTY SAND & GRAVEL WITH 43 _ COBBLE 44 45 46- 47 48 49 ,a 50 The stratification lines represent the approximate boundary lines between soil and rock types. tnsitu, the transition may be gradual. Water Observations Boring Started: 10/17/2006 Initial WL: I9 T.R.T. Boring Complete: 10/17/2006 1NL: 9' Logged By: TM Water Checked: 10/17/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 3 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description v L a) s o a F '11-' a cca Cl)3 Z Z a. El El cn Water Content (%) Dry Density (pcf) .E J "O. a _, x -o - ! a o o ` ° .N ca o a Unconfined Strength (psf) Swell (psi) p _ co D ..1r - v, aW.'." 51r 52 53 54 55 56 57 i 58 .ir:r 59 — 61 62 63 64 65 66 ._ 67 68 69 70 I 71 - 72 73 .,:._:'':-: 74 75 - F. �1",^..n,:9 .. .:... .:f€C,v ,� rrt✓'Z.'f 'h'Yn' .. - ��,,'R'lP°j.;"a5 '. � i"•. ' ,. .� i � .� ... il. ,,.f 'T7^�:J Av tom;.. SILTY SAND & GRAVEL WITH -1 )r �� x!l' r^. cx` ,rr:rr rrri xv r: ., fir. -•it r}U:r r— r rT; r rr err yr. ';'``P r eir ;i:tirr iViq- Rc5Fr, COBBLE . SILTY SAND & GRAVEL BS 6.3: 1 1 3.81 1 GW t The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations I T 1 T.R.T. . R. 11 . Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 9' Boring Complete: 10/17/2006 WL: 9' Logged By: TM ,Water Checked: ( 10/17/06 Approved By: TMC LOG OF TEST BORE - 3 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index a 0 CV 4 m N m a N a c o) c c V) n 3 USCS/AASHTO SILTY SAND & GRAVEL 76 := =- 77 78 79 80 81 82 SILTSTONE (WEATHERED- 83 BROWN/RUST1 84 .; S5 .` 86, SILTSTONE (GREY' 87 88 ' 687 I ; 22 4 . 89 90 91 92 - 93 94.: 95 .; 96 97 98 99 100 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual: Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL 9' Boring Complete: 10/17/2006 WI:9' Logged. By: TM Water Checked: 10/17/06 Approved By: TMC LOG OF TEST BORE - 4 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Z U ,atea ,-, 0 , a� Liquid Limit 0 O o * N a w c rn c °' 3 o N rviJ SILTY SAND WITH GRAVEL 11- 4 5 t SILTY SAND a� s 10 w.. SILTY SAND &GRAVEL WITH 11 12 COBBLE 0 GROUNDWATER 13: ..°° 14 150;x: 16 ! .-�• ° SILTY SAND 17 18 I 19� SILTY SAND & GRAVEL WITH .- °00 % " COBBLE 20 ,. 21 '? V°a 22 - �°� ° ° 23 24 .° 25-'�'°', ° ° The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/17/2006 Initial WL: 11' T.R.T. Boring Complete: 10/17/2006 WL: 11. Logged By: TM Water Checked: I 10/17/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 4 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) 0 >, F a2 c B co '- z n~. co co m c O CJ C c- c., T w d Z O f.,. -� 'O o- a m a % Passing #200 Unconfined Strength (psf) Swell (psf) USCS/AASHTO 26 ., SILTY SAND & GRAVEL WITH paat 090 a COBBLE 27 ° �o o • 28 29 .; ° ;N 30 ARD-,p 31 :3 32 33 ° AP 34 - ;o° ..% 04. 35 SILTY SAND WITH GRAVEL 36 37 38 BS 16.7 3.18 ISP 39 SILTY SAND & GRAVEL WITH °° COBBLE°° 40 •: 4,. d' ° ° 41 i o° 42 =• ° ° 43 ;` 4� a3 SANDY SILTY CLAY 44 SILTY SAND & GRAVEL WITH ° ° COBBLE 45 0% 46 0: ,° a 47 "°a°a':,. 48 .: :40 °o° 49 " a°°$'° 50 °,i�i�° *v The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/17/2006 Initial WL: 11' .R.T. Boring Complete: 10/17/2006 WL: 11' Logged By: TM Water Checked: 10/17/06 _ Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE- 4 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) a H a� Q v z cn cn o vim O , �, �o a- 0 a N a u o E 0 - Plastic Index % Passing #200 Unconfined Strength (psf) N a. rn USCS/AASHTO SILTY SAND & GRAVEL WITH 51 "o : °;°od; a° ° eak ° _ = -- COBBLE 52 -%De 53 ° 54 SANDY SILTY CLAY SILTY SAND —& GRAVEL WITH 55,a°°° COBBLE 56 57 - 58 59 60 -- 61 .. _ 62 63 64 SILTY SAND & GRAVEL 65 66 67 SANDY SILTY CLAY SILTY SAND & GRAVEL 68 :. ° ,: ° °°c ° :99943:0-- a N IIL 69__: SILTY SAND & GRAVEL WITH COBBLE 70 71 .::°,% 72 74 '°°a+°o, 75 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T T �? T Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 11' Boring Complete: 10/17/2006 WL: 11' Logged By: TM Water Checked: 10/17/06 Approved By: TMC LOG OF TEST BORE - 4 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) O 0 :i5 `° o cs 7/3 0 i= - Cr a - U ° I • I.% Passing #200 Unconfined Strength (psf) y Q _ 3 i Q _Q 0n cc SILTY SAND & GRAVEL WITH 76 :; �.ya�p °,`a i ` COBBLE 77 . SAND & GRAVEL 78 s.t SILTSTONE (WEATHERED- 79 BROWN/RUST) 80 81 82 SILTSTONE (GREY) 83 84 85 86 87 88 89 90 91 • 92 93 94 ' 95 - 96.. 97 .: 98 99.. 100 - 86 i i I i 122 60 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/17/2006 Initial WL: 11' T.R.T. Boring Complete: 10/17/2006 WL: 11' Logged By: TM Water Checked: I 10/17/06 Two Rivers Testing, Inc. Approved By: TMC The stratification lines represent the a p approximate boundary lines between soil and rock types. LOG OF TEST BORE - 5 (Log 2 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description 28 SANDY SILTY CLAY SILTY SAND & GRAVEL WITH COBBLE a tT a) a E Cl) Project: Project No.: C 0 U Slurry Wall Design 2006-201 E c J 17 trz C L C Cr") o 0 `) The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Initial WL: 9' WL: 9' Water Checked: 10/25/06 T.R.T. Two Rivers Testing, Inc. Boring Started: a 3 10/25/2006 Boring Complete: 10/25/2006 Logged By: Approved By: TM TMC LOG OF TEST BORE - 5 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description L aa) o a p7 a m co Z d OJ co m U N mm " >° U a. C L Q J .0 J x U m 2 o csi .. N n as 4. L C. O) c °� D U) a _ 3 U) I — Q � co 0 '. .. • . ei ..,--.. „C 2.3 ,�u'uli5l1.d:��3'?" SILTY SAND & GRAVEL WITH 51 r r •{;�►•; R.rr.�r tiO- 'r` ;r -- COBBLE 52 53 54_.:$c 55 56 57 58 59 60% 62 64 65 66 67 68 69 :x.. O 'sSh'w r;e1, rreti'rh� tre •G fa o`er• r": ►'61 z. RrJA� �RyRia� '`.'`- k ►- �e•r AIr r- .+ xia.: �rie.•r . �r :r er r err' te•: rerr,►- _ r;er�4rt ;r- e x:� ".'Gtr►.. ' 4. _ ric °o�°, ° °.' °'75 e: V°f 70 : SANDY SILTY CLAY 71 . . 72 SILTY SANDY & GRAVEL WITH 'A4° COBBLE 73 ._ 74 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual Water Observations Boring Started: 10/25/2006 Initial WL: 9 T.R.T. Boring Complete: 10/25/2006 W L: 9, Logged By: TM Water Checked: 10/25/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE-5(Log4of4) Client: Dust & Excavating' Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description L 0.C 0 Sample Type SPT-N (BLOWS/FT) a) U N 0E V a c O o Liquid Limit X0 U a O o 4k m co fu o N m Din n 715 (/) USCS/AASHTO SILTY SAND & GRAVEL WITH 76 - "PA 4 a � COBBLE 77 ... 78 -- 79 SILTSTONE (WEATHERED- 278 BROWN). , 80 81 82 71 SILTSTONE (GREY) ; 91 83 84 85 86 87 88 89 90 91 92 93 94 95. 96 97 .: 98 99 100 .- . 88 126 45 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/25/2006 Initial WL: ' 9 T.R.T. Boring Complete: 10/25/2006 WI: 9 Logged By: TM Water Checked: I 10/25/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 6 (Log 1 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description o. a) O SILTY SAND WITH GRAVEL SILTY SAND SILTY SAND & GRAVEL WITH COBBLE SANDY SILTY CLAY GROUNDWATER 15 SILTY SAND & GRAVEL WITH COBBLE 16 17 18 SILTY SAND & GRAVEL SILTY SAND & GRAVEL WITH COBBLE Project: Project No.: Slurry Wall Design 2006-201 E J Q PI The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual Water Observations Initial WL: Water Checked: I 10/24/06 Boring Started: Boring Complete: Logged By: Approved By: c n 10/24/2006 10/24/2006 LOG OF TEST BORE - 6 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) U O. , �, N a- o _ E 0 -o U `o m a O. * m N o -&''o y n c v in c 3 co HSHTO SILTY SAND & GRAVEL WITH ' a pp i °°:;1%9426%ai °� Qi ° �a�''000a -V8` u°° _off;; '_ 40.,: °'� o,"a °i°1i Yoh 0. °4, ° iii - :, % : COBBLE 27 28 ' 29 .. 30 31 ' 32 ' 33 34x4 35 i 36 SILTY SAND & GRAVEL ixiyoy 37 SILTY SAND & GRAVEL WITH 39r IV . r COBBLE 40r 41 42 43 44 45 46 47 48 49 50 erb� r�r-� . art r r.,r; trr-r a r tie ` ikli s1;xt ..,cx 'd! F :"rrr� r ar. x. 'rr The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: - 15' Boring Complete: 10/24/2006 WL: 15' Logged By: TM Water Checked: ( 10/24/06 Approved By: - TMC LOG OF TEST BORE - 6 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) [Sample Type SPT-N (BLOWS/FT) • aco o ili en a m 0 • Liquid Limit Plastic Index a c m ta d Unconfined Strength (psf) . v, a O _ CJ ,,°a,° :eV ; a° aaa°a 610 o ate" :4 a°a °a°a� aka° °°: SILTY SAND & GRAVEL WITH 51 ' COBBLE 52 53" . 54 55 SILTY SAND & GRAVEL =- Ss:=__.. °'��qaogi o°a,ia� a a4 ' a a aaa a,,°a,4�' PWo-o, J°Jap .6ii'M°P 1°°7'�°�'` 56 ::_ 57 - 58 59 SANDY SILTY CLAY 60 SILTY SAND & GRAVEL WITH COBBLE 61 62 i 63 64 65 67 SILTY SAND 68 SILTY SAND & GRAVEL WITH 69 COBBLE ":M•x aaaa°a` a aaa°, aJ�aa, a aaaa °a a°Ja°i a�a MO a°a°p r SANDY SILTY CLAY 70 71 72 SILTY SAND & GRAVEL WITH COBBLE 73 -! 74 75 The stratification lines represent the approximate boundary lines between soil and rock types. lnsitu, the transition may be gradual. Water Observations T.R. 1r-� • 1 Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 15' Boring Complete: 10/24/2006 WL: 15' Logged By: TM Water Checked: 1 10/24/06 Approved By: TMC LOG OF TEST BORE - 6 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range .65 West Project No.: 2006-201 Description r o o. -- 9 m CO ^ IL Z� n~ W m c O @ 3' 5 Q 7 O O _ E -o x a `� m a o o # m m o o N d• c .cg� o c n in a U) O H _ v D ;'",.,, i, ;„ _ ri .� .,4; T. SILTY SAND & GRAVEL WITH 76 -a. :70:4 2'" ,.. .4 , ,;n ., <. �°rvf-?'t.t*... .,.e*.?r,', : ..,. "�' ;'�"'��°-�'.".";°' ,,.. , ^: ::,.: .. .,C'P""',c.,.",y,,,•r, j000�ao ��JJJ��''J°a ' 4'i° la J : J_J� DO .r °J de J. JJ %: a' Vli o J°ooJ' ;°oq,a: J° °° - . 4° • COBBLE 77 78, 79 80 '° 81 -;,°. _-. 82 8 3 . - 84 85J 86 87 SILTSTONE (WEATHERED- 88 BROWN/RUSTZ SILTSTONE (GREY) 89 BS 20.1 90 91 92 93 94 95-t 96 97 . 98 99 . 100 I i 88 74 89 63 1 ,- t The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations '`j' '�(�' 1 . �. 1 Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 15 Boring Complete: 10/24/2006 WL. _ 15' Logged By: TM Water Checked: j 10/24/06 Approved By: TMC LOG OF TEST BORE - 7 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) 0 ca.LL S?Z> ro co cn > a to m Water Content (%) Dry Density (pcf) Liquid Limit 0 a 0 CO 0 0 o N * m __ N CD o o 0 C 0) c o co ¢ 3 f/) i- i I D i f ;,'? .. ":k -,3 , �.. v.7,.., ► �b3'.ah,:,,. ar^sg,. ... .. .. - e y, ,,:R;i°%?3"t" - . '°. .. . . SILTY SAND WITH GRAVEL , D ? °-':o:. a°D°D°D°D aqV.,: 09 :999 )po iDQ Vi iD.Q°o a,°: , aDV : °:°:%:0 D°., Moe. a°° 4.0 ge :a° ° 0i°°DJ 0S0 0 '44,:VOX: ,�°�°�`°''°D a _s_ DD D w�1wi�D 4 SILTY SAND & GRAVEL WITH COBBLE 10 : - 11 12 13 -aDDDD SANDY SILTY CLAY 14 SILTY SAND & GRAVEL WITH COBBLE 15 16 Groundwater v 17 18 19 20 21 ' 22 23.pw 24 .:4:,°%°,J• 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 17 Boring Complete: 10/24/2006 WL: 17 Logged By: TM Water Checked: 10/24/06 Approved By: TMC LOG OF TEST BORE - 7 {Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North ..Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pct) E 7 - x -o C N Io a % Passing #200 Unconfined Strength (psf) Swell (psf) USCS/AASHTO z SILTY SAND & GRAVEL WITH 26 :x'fern r;; COBBLE SILTY SAND & GRAVEL 27 ____"_,_ 28 29 30 SANDY SILTY CLAY 31 32 SILTY SAND & GRAVEL WITH COBBLE 33 'r'errr r e 34 ...? 35 Are 36 xre 37 •rr* eke 38 •, -or T 39 - 40 41 yr: • r_{ .trrw err i :*Sa 42 � 43 er- 4:r rr1 xr r. 44r �7,e err,trt :rtrrr�Y! SANDY SILTY CLAY 45 S 46 47 SILTY SAND & GRAVEL WITH aoJJ�� COBBLE 48 a aJ 49 ..� o 50 aaaaaa aaa The stratification lines represent the approximate boundary lines between soil and rock types. Insitu• the transition may be gradual. Water Observations Boring Started: 10/24/2006 Initial WL: 17' T.R.T. Boring Complete: 10/24/2006 WL: 17' Logged By: TM Water Checked: 10/24/06 Two Rivers. Testing, Inc. Approved By: TMC LOG OF TEST BORE - 7 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) 0 o c.) a N c _ E J iv C % Passing #200 Unconfined Strength (psi) c 0. O = SILTY SAND & GRAVEL WITH 51 . J' JQJ o�Qoou ° .. iJ • JJi" : :\�,�y, ;aA. �°J°` w'J _acee p JJ JJ0 -° o;J°° JJ ea J,QJ J a 47,,% JJJJJJJ _L. - - COBBLE 52 53 54 • 55 -•'J0 56 SANDY SILTY CLAY 57 58 59 SILTY SAND & GRAVEL WITH COBBLE 60 - 61 62 SANDY SILTY CLAY 63 64 "- 65 66 " 67 .- SILTY SAND & GRAVEL WITH COBBLE 68 69 70 71 -a°ti 72 - 73 .. 74..,-"* 75:* The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations . �. Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 17' Boring Complete: 10/24/2006 WL: 17' Logged By: TM Water Checked: 10/24/06 Approved By: TMC LOG OF TEST BORE - 7 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) C• O 65 > o c V d y N 0) ci Liquid Limit Plastic Index o o O) C cf3 m a a C 4E o c c N w USCS/AASHTO 76 SILTSTONE/CLAYSTONE //7 (WEATHERED-BROWN1 77 SILTSTONE/CLAYSTONE (GREYI ; 63 ; i i ; ; ; ; ; 78 ' BS i ; 18.0 I I 331 16; , 86.91 ; ; CL/A-6 104 t I ( 1 , , 79 80 • 81 82 i 83 84 85 . 86 87, 88 89 90 91 • 92 93 : 94 95 96- 97 98 99 • 100 . The stratification lines represent the approximate boundary lines betweend rock types. Insitu, the transition may be gradual. Water Observations /Boring Started: 10/24/2006 Initial WL: 17' T.R.T. Boring Complete: 10/24/2006 WL:. 17` Logged By: TM Water Checked: 10/24/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 8 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) a) 0 U B a U °' e C 0 Q• E ITI :O o- Plastic Index % Passing #200 Q7 " c L c m v = (q •w a — o Co ~ Q Q 0 U co SILTY SAND WITH GRAVEL SILTY SAND 3 . _ - O SILTY SAND & GRAVEL WITH COBBLE• SILTY SAND P 44 10 11 SILTY SAND & GRAVEL WITH �r - , :`tip � �r xP^er� 44° f`e at 44�� yr`r t rL e. 00"'"V wr.xr:w� COBBLE 12 Groundwater 0 13 14w„a 15 16 17 18 19 20 22 23 25 SANDY SILTY CLAY The stratification lines represent the approximate boundary lines between soil and rock types. lnsitu the transition may be gradual. Water Observations ► 1 T . R. 1 • 111��. Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 13' Boring Complete: 10/23/2006 WL: 13' Logged By: TM Water Checked: I 10/23/06 Approved By: TMC LOG OF TEST BORE - 8 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) a Cam' O U m a N c O 000 Liquid Limit Plastic Index % Passing #20D Unconfined Strength (psi) a o = Cn Q co 0 C i i■F SANDY SILTY CLAY ..;:, .err° `, Vei ;r5, a' ',,o.r, r k ,eior•!� %';;fie -•rr-1 rrr� arse fir r-rr. t{ r� te: Grp e� rr;r` .•.•_ 27 28 SILTY SAND & GRAVEL WITH COBBLE 29 30 31 SANDY SILTY CLAY 32 33 34 35 SILTY SAND & GRAVEL WITH COBBLE 37 38 39ew; 40: 41 42 43 44 45 46f. 47 •r 48 49 r,�r;.rr• SANDY SILTY CLAY 50 =' The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 13' Boring Complete: 10/23/2006 WL: 13'Logged By: TM Water Checked: 10/23/06 Approved By: TMC LOG OF TEST BORE- 8 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index 0 0 * C) C vl N co a a; a C L 4. C C) C C 2 2 c N C- N 3 USCS/AASHTO - .... � "..,. .. . l�.t,A�,uki#'.. • - _ -, `?. 2i' ..:"��'_+&.. -'. . .... #WZfx:'��"a'�� ... 'Y'b�A�stz SILTY SAND &GRAVEL WITH 51 COBBLE d� ° 52 53 54 55 56°;�? 57 58 59 s G°e' ° °°°°°° °°° .'°°°° VNta V° % SILTY SAND & GRAVEL SANDY SILTY CLAY 61 ._ 62 63 • BS 31.0 39 21 97.5 20 CL/A-6 64 SILTY SAND 65 66 68 . SILTY SAND & GRAVEL WITH 69 COBBLE' - 70 71�°�°°° 72 SANDY SILTY CLAY 73 74 SILTY SAND & GRAVEL WITH °°*' COBBLE 75 .-.*';"° °°°° The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition maybe gradual Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 13' Boring Complete: 10/23/2006 WL: 13' Logged By: TM Water Checked: I 10/23/06 Approved By: TMC LOG OF TEST BORE - 8 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North -Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) u a' o _ 5 a x VI M a o o o N a. c ca 0 Din (/) USCS/AASHTO 00 SILTY SAND & GRAVEL WITH 76 COBBLE SILTSTONE (GREY} 77 78 -. 79 80 81 iC 82 - 83 84 85 86 - 87 88 I 89 A 90 91 92 93 94 95 , 96 .. 97 98- 99 -. 100 -- 93 159 I i 94 148 , - 1 90 i 125 I i The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations . A . Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 13' Boring Complete: 10/23/2006 WL: 13' Logged By: TM Water Checked: I 10/23/06 Approved By: TMC LOG OF TEST BORE - 9 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 N C L C cn `c' c m V) N 3 rn O = Co cv n D �/ SILTY SAND WITH GRAVEL 0 _ _ 1 SILTY SAND &GRAVEL WITH 6 ' z'' �' COBBLE SILTY SAND 8 ::•:•:• JJJQJ, pJ ° •-Jli- uliJJ o1°J°°pJJZi 0 ° J.- e . 10 11 SANDY SILTY CLAY 12 SILTY SAND & GRAVEL WITH 13 COBBLE 14 15 GROUNDWATER v 16 : 17 18 19 20 _ 21 22 23 24 SANDY SILTY CLAY SILTY SAND & GRAVEL WITH 25� COBBLE,xarir;.rt The stratification lines represent the approximate boundary lines between soil and rock types. Insitu. the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 15' Boring Complete: 10/24/2006 WL: 15' Logged By: TM Water Checked: l 10/24/06 Approved By: TMC LOG OF TEST BORE - 9 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description CI) Q a } v _ m U) z a m rn o U m o U .N a) Z' 0 .E 0- J x -0 U m . d O 4t c°' N a o N °�' t c E n U) • �' Q 3 (/) = )Q Cl)o - 0 R'"+,""—'...�"'.,"PTA :�.,'/°•�i i a ;s.,,,� , , ...,,::,:PC'a:?3 A.-yt "Y , 'k ,"'"'"' k"S.^.Y , ,23 SILTY SAND & GRAVEL WITH 26 0 °� �? a ° COBBLE 27. 28 29 30 31 32 33 34 35 36 - SILTY SAND WITH GRAVEL -: 37 =- 38 39 40 41 42 . 43 SILTY SAND & GRAVEL WITH COBBLE 44 45 46 47 48 49 50 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/16/2006 Initial WL: 9, T.R.T. Boring Complete: 10/16/2006 WL. 9' Logged By: TM Water Checked: 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 9 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description (Depth (ft.) Sample Type SPT-N (BLOWS/FT) U a) >° cam) a C Cl) O O Liquid Limit x - L) N d % Passing #200 Unconfined Strength (psf) a .... (rro 3) Q_ co Q CJ m ° as ° o° ,.. D- ., Yom: 51 SILTY SAND &GRAVEL WITH COBBLE 52 53 ._ 54 55 56 57 58� SANDY SILTY CLAY 59 - SILTY. SAND & GRAVEL 60 61 62 • 63 64 65 SILTY SANDY CLAY 66 67 SILTY SAND 68 .. SILTY SAND & GRAVEL WITH 69 a 2 ° ;• 2x reCi. COBBLE 70 71 72 73 SILTY SAND & GRAVEL • 74 SILTY SAND & GRAVEL WITH COBBLE The stratification lines represent the approximate boundary lines between soil and rock types.Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/24/2006 Initial WL: 15' Boring Complete: 10/24/2006 WL: I )115' Logged By: TM Water Checked: 10/24/06 Approved By: TMC LOG OF TEST BORE - 9 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description ,C o O a T N a U) p LL- '° z > U) m C U m U > _�' c a) a O - _J -� J x -0 C U a O m C m o y y c, C 5 E m D co N O. — (J) o _ to D SILTY SAND & GRAVEL WITH 76 '-? .o P'^^'�� iq,-+' ° D ea. a vw V. °d ° a °°°igoga` D D: a ° *AI' `t°Q i i itY*3° D° ��° ; �,'°° A COBBLE 77 SANDY SILTY CLAY 78 79 SILTY SAND & GRAVEL WITH COBBLE 80 81 82 --1.0444 83 84 85 86 SILTSTON E-(WEATHERED- BROWN/RUST2 87 88 SILTSTONE-(GREY) 89 90 91 92 99 75 93 122 94 .i 91 95- 96 97 98 99 - 100 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. B : Boring Started: 10/23/2006 Initial WL: 13' Boring Complete: 10/23/2006 WL: 13' Logged By: TM Water Checked: 10/23/06 Approved By: TMC LOG OF TEST BORE - 10 (Log 1 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Project: Project No.: Slurry Wall Design 2006-201 Description Groundwater SILTY SAND & GRAVEL WITH COBBLE 11 SANDY SILTY CLAY d. U) 0 10 COBBLE COBBLE 12 13 15 16 17 18 19 14 20 - 21 22 23 C a 1- m H ILo cu a 0 Z U) U) n. O CU cn co m E J a O U) C U CO • D. C C C3) O D • o) d The stratification lines represent the approximate boundary lines between soil and Water Observations Initial WL: 8.5 WL: Water Checked: 1 10/25/06 8.5' rock types. Insitu, the transition may be gradua . T.R.T. Two Rivers Testing, Inc. Boring Started: 10/25/2006 Boring Complete: 10/25/2006 Logged By: pproved By: TM TMC LOG OF TEST BORE - 10 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) a � -a E CU p in z }- a m Coa o N m5 ,z,,' a C r7 ^ J 'o Q J x C " m 0. % Passing #200 Unconfined Strength (psf) ) a - 5 3 = C!) 0 co O 8i'�s�."t'r^"� `�.,. SILTY SAND & GRAVEL WITH 26 'rrrrr l - -,r. fi i: fretevi ,.i ,r`r.�,p 4�r;err; e '. :.-e`er,,er�c :5.40 ;e b ..t:r�. r,k� . fry.'. , -he�, �r`r '-'.r iXfr ,A0rrrr. ; -r:r:�a ': i . -..y r - ?. rrea COBBLE 27 - 2800��i 29 30J°D° 31J 32 33 34-JiDQ°D�; 35' SANDY SILTY CLAY 36 - 37 SILTY SAND & GRAVEL WITH COBBLE 38 _ 39 40 41 ' 42 : 43 44 ..: 45 46 47 48 .. 49 .. 50 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations .R.T. Two Rivers Testing, Inc. Boring Started: 10/25/2006 Initial WL: 8.5' Boring Complete: 10/25/2006 WL: 8.5' Logged By: TM Water Checked: I 10/25/060 Approved By: TMC LOG OF TEST BORE - 10 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psi) Swell (psi) USCS/AASHTO „ r,.,,'. ,'5' w`, ,. «;%w m. ✓, '^m,,;tv>n „✓,;-:, •.,. ,.iT'r`,'.r7°a",P9-, r._. ,�.. :"„mv+n'—'.,. ._'2 ,.x^..?"S r, .,e.. ,. °'",.., .. .'7 is .W"l5& ."i, Y';z"%,"5'. ., .:.;n`e3,vs,;,a, SILTY SAND & GRAVEL WITH 51 °°d'A COBBLE 52 0 ay 53 54. V. o 55 o R: 56 - 57 *°a°` o°aoQ °v 58 •_ 59° • Oli 4 60 04): eal.: 61 SANDY SILTY CLAY 62 SILTY SAND 63 64 65 67 68 69 70 71 72 73 •fir°Z,@�' 74 75 :�k4•''y The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/25/2006 Initial WL: 8.5' T.R.T. Boring Complete: 10/25/2006 WL: 8.5 ' Logged By: TM Water Checked: J 10/25/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE -10 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) C O C) N E c V a T y C N 0 Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) Swell (psi) o = (n Q c) SILTY SAND 76 .A- : - , q t 4,- 77 78 80 81 SILTSTONE (WEATHERED- BROWN/RUST) 82 -I: 83... 84 : 1141 I i I I i i I 1 b2 1 1 I 1 SILTSTONE (GREY1 85 8 86 87 , 88 89 90 91 92 93 94 - • 95 -- 96 97 98-� 99 100 92 i i 75 t ( t ! ! ! ! ! 100 1 1 I I i I 1 I 1 1 1 I 1 I I I 1 56 i The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/25/2006 rat Initial WL: 8.5' T R. 1 Boring Complete: 10/25/2006 . . WL: 8.5 Logged By: TM Water Checked: I 10/25/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE -11 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content i (%) c U a T 4 c a) Z, _ E J Q Plastic Index % Passing #200 c. a ate) — C L c c N co USCS/AASHTO _ giiti:SILTY SAND WITH GRAVEL =_ ` 1 - 3 SILTY SAND J JJ JJ pJp°fi JJJJ JVJJ° J° JJJ�,J� ,JJ • ,J; J JJJJ, JJJVJJ°i p°pA-J° ;MN {r: •:•::: :: ;.; : :r• eieve; ::'r:' k}: m. :�� ■ t Y eimie 5 7 SILTY SAND & GRAVEL WITH COBBLE 10 GROUNDWATER v 11 12 13.._J2 14 15 16 17 18 - 19 GRAVEL WITH COBBLE 20 21 22 23 24 '::::ti 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/16/2006 Initial WL: 11' Boring Complete: 10/16/2006 WL: 11' Logged By: TM Water Checked: 10/16/06 Approved By: TMC LOG OF TEST BORE -11 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index O 0 * N CO o a N C L O C c D Z/5 d _' 3 CI) o = -Ch. (I) m GRAVEL WITH COBBLE 26 0:: : 44% � . .• ti .. :": ::err: ;■. :•r •:ti" f .w.. 4.. ... . . :tirti :: e:•:* ■ ■� " •� :•::: :� ;°4:": :4 a°aG X 41. .-aaaa as a1..a a°:! as oaA X -a°o*-, a°40a°c °� aa: ° o ? '==c ■ : . . 27 28 =::•: 29 30 32 33 34 35 36 SILTY SAND & GRAVEL WITH 37 '��•..� COBBLE 38 39 40 41 42 43 .. 44 ... 45 46 :.°:a°a;�; 47 SANDY SILTY CLAY SILTY SAND & GRAVEL 48 49 50 c- The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T.R.T. Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 11' Boring Complete: 10/17/2006 WL: 11' Logged By: TM Water Checked: 10/17/06 Approved By: TMC LOG OF TEST BORE- 11 (Log 3 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) a F O E co P 2 co ~� u) m g O U >ni ' > c- o ° N c N Z O I 11 a a J x ° @ 17, a_ % Passing #200 Unconfined Strength (psf) a 3 co USCS/AASHTO 51 SILTY SAND & GRAVEL -- =" 52 53 54 55 56 57 58 59 60 61 62 ;: 63 SANDY SILTY CLAY 6410, SILTY SAND 65 66 67 68 69 70 71 SANDY SILTY CLAY 72 -- 73 74 75 The stratification stratification lines represent the approximate boundary lines between soil and rock types. insitu, the transition may be gradual. Water Observations • ^K• � T.R.T. Two Rivers Testing, Inc. Boring Started: 10/17/2006 L: Initial W 11' Boring Complete: 10/17/2006 WL: 11' Logged By: TM Water Checked: I 10/17/06 Approved By: TMC LOG OF TEST BORE -11 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type. SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) Swell (psi) USCS/AASHTO SILTY SAND 76 .. ' °a° �J J°� ° ° �i aaJ..��J�i pJp-JpV JJ,v4Ji �J VIpiJ,°pJ. v° jeo J. °) a4 -°y, J J JJJ °G A SILTY SAND & GRAVEL WITH =i° COBBLE 77 -a40 78 - 79 81 82 83 "S 84 = 85 SILTSTONE/CLAYSTONE- (WEATHERED-BROWN/RUST) 86 ; SILTSTONE/CLAYSTONE (GREY): BS 17.4 30 11 86.1 CL/A-6 87 88 89 91 92 67 I I 8090 106 60 I , 93 94� 95 96 97 98 99 - 100 140 73 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 11' Boring Complete: 10/17/2006 UVL: 11' Logged By: TM Water Checked: J 10/17/06 Approved By: TMC LOG OF TEST BORE - 12 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type p Z3 a.cn Cn CID 0 O O mLC5 cL a ›. N a) Z O Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) a -T-ii CO 0 z co ii5_OO 0 D SILTY SAND WITH GRAVEL CLAYEY SILTY SAND 4 SILTY SAND 5 6 BS 3.1 0.57 GP SILTY SAND & GRAVEL WITH • re.,t` EE w f=rte _�s�rre Ali ��< - ;r'F ri Klerl eAw, MiN f*. - ` O r r£.er .1,,,, -•; ',r 2, ;2 Mel �' •'a"�i -. r , COBBLE . 10 12 .ser 13 14 15 16 GROUNDWATER V 17 18 19 20 21 22 'la: 23 :�ryx 24 :;eert 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradua Water Observations Boring Started: 10/16/2006 Initial WL: 17' r�1 T R. 1 Boring Complete: 10/16/2006 WL: 17' . 1� Logged By: TM Water Checked: 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE -12 (2 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description SILTY SAND & GRAVEL COBBLES SILTY SAND WITH GRAVEL SANDY SILTY CLAY WITH 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SILTY SAND & GRAVEL WITH 49 COBBLE 50 The stratification lines represent the Water Observations Initial WL: WL: N n Z. E m Project: Project No.: approximate boundary lines between soil and 17' 17' Water Checked: 10/16/06 Slurry Wall Design 2006-201 E Q rock types. Insitu, the transition T.R.T. 0 CsI 0) C 0- 0- may be gradual Boring Started: 10/1 U) 0. 3 6/2006 Boring Complete: 10/16/2006 Logged By: Approved By: TM TMC LOG OF TEST BORE - 12 (Log 3 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description SILTY SAND & GRAVEL WITH COBBLE SILTY SAND SILTY SAND & GRAVEL WITH COBBLE SILTSTONE/CLAYSTONE (WEATHERED) SILTSTONE (GREY) L N O 51 52 53 %4). 54 . die 55 ,NW" 56 Q,i 57 58 59 60 61 62 63 64 65 66 67 i Z.; 68ag 4. 4.: 69 70 71 72 73 74 75 127 Project: Project No.: The stratification lines represent the approximate boundary lines between Water Observations Initial WL: 17' WL: 17' Water Checked: 10/16/06 soil and rock types. Two Rivers Testing, Inc. Slurry Wall Design 2006-201 Insitu, the transition may be gradual. Boring Started: 10/16/2006 Boring Complete: Logged By Approved By 10/16/2006 TM TMC LOG OF TEST BORE -12 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pcf) Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) Swell (psf) USCS/AASHTO SILTSTONE (GREY) i ' i i 76 124 I I 77 78 91 79 ' 1 80 - 81 82 83-- 84 85 ; 86 • 87 - 88 -• 89 90 91 .; 92 . 93 • 94 95 - 96 97 98 • 99 100 =The stratification lines_ represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/16/2006 Initial WL: 17' T.R.T. Boring Complete: 10/16/2006 WL: 17' Logged By: TM Water Checked: 10/16/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 13 (Log 1 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type p LL Z� Q J cnm o U Cl) m^0 �o U g �_ h m t7 a E J " x N -0 c U N d % Passing #200 y _ a) a r CO m U N 7(A n. = Cl) CO O = Q Q (n U co F.4. w A'F, �;: iY4��". �.ic4f 3d -.F 4 s _-R:, 3' u..fiy'.i. 'u.Y..n..ai - - `~ lerSILTY ;Fir;r.f ;.r -r-: rr k • k)t,v • r-- rr`', .- ,r -r . rlr er-rr.1 errr'n rrr w .4)., r rrr,eL l. . ql is t e Frt :er rrer er re •�rr'�=' e£ X ee;:ii �-e�,r-r�r .rL,-.rrt ;efri.�' vo r .1LriF yr" :5 _ A �ir, rLL."'n... i 0 SILTY SAND WITH GRAVEL 5 .: SILTY SAND & GRAVEL WITH COBBLE 7 'rrw SANDY SILTY CLAY SAND & GRAVEL WITH 8 COBBLE GROUNDWATER 0 11 •rrtir 12 .: 13 14 ... 15 16 17 18 19„r,,t 20 21 : 22 23 24 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations 11. RI'. Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 9' Boring Complete: 10/17/2006 WL' 9 Logged By: TM Water Checked: I 10/17/06 Approved By: TMC LOG OF TEST BORE - 13 (Log 2 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) U a ',-7) c N p E J a Plastic Index Passing #200 Unconfined Strength (psf) F. d - Ed SILTY SAND & GRAVEL WITH 26 ) rA COBBLE .,r.e. =: 27 28 29 1 30_ 31 ' 32 33 = 34 - 36 37 38 39 40 41 , 42 .: 43 - 44 45 qg 47 • t c ;r fir` tr�trt f- rte` =rrr 4 Sr' •rytr;rrs -.r. t. rkr :,4 r .tt :r ;r • rt .44 i5;" stir ;r r r. r r' ri S 0 V ogi in ;f.er) •r- if _•.xr,e r - ;rrr -. rt r ' .r' •4hxr ti.' :rt� rrer•,,re*; r�rc -.- ;r ;r`r5.� .e Se�.r r r -r 1e 4 r SANDY SILTY CLAY 48 49 , SILTY SAND & GRAVEL WITH ;0 COBBLE 50 -. 041,i Q, o �o °'3�oV :V � J The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/17/2006 Initial WL: 9' T.R.T. Boring Complete: 10/17/2006 WL. 9 Logged By: TM Water Checked: 10/17/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 13 (Log 3 of 4) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description a. D a E- d 0) SILTY SAND & GRAVEL WITH COBBLE SANDY SILTY CLAY SILTY SAND & GRAVEL WITH COBBLE 51 52 53 54 55 56 57 58 59 60 61 62 63 64 -= 65 66 67 68 69 70 71 . 72 73 74 75 Project: Project No.: C 0 U a) 0 Slurry Wall Design 2006-201 E J a • 0 J Plastic Index Passing #200 0 0 o USCS/AASHTO The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Initial WL: WL: 9' 9' Water Checked: I 10/17/06 T.R.T. Two Rivers Testing, Inc. Boring Started: 10/17/2006 Boring Complete: 10/17/2006 Logged By: TM Approved By: TMC LOG OF TEST BORE - 13 (Log 4 of 4) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description 5 a) a. F— Q- m U) p co 2 Cl- _ Cl) m C' O O',7) a) ° o U a cool a- O Y E :0U a- J x C d O C� N o_ o N C t p C� D (/) w = 3co co H _ U) n SILTY SAND & GRAVEL WITH 76 -° a°c . �°; •_ �°°° °° ° ° - ° 0,0 _ - ::_ --°4° COBBLE 77 ' 78 79 80 81 -0`°0, s 82 ":No 83 - SILTSTONE (WEATHERED- 84 ORANGE/RUST) 85 SILTSTONE (GREY) 86 87 88 89 90 91 92 93 94 95 1041 i i i i I i i i 161 83 p 92 58 i 1 1 116 1 1 1 1 96 112 58 96 97 98 71 i 101 1 1 I 1 I I I 1 99 100-- The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T. R.T. Two Rivers Testing, Inc. Boring Started: 10/17/2006 Initial WL: 9' Boring Complete: 10/17/2006 WL: 9 Logged By: TM Water Checked: I 10/17/06 Approved By: TMC LOG OF TEST BORE - 14 (Log 1 of 5) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) o o N U a m d E ..- Plastic Index O 4t c c , ' o N aa) c _cn C m D w m fn USCS/AASHTO "��"'♦�� SANDY SILT 0 SILTY SAND at 2 33 4 -- SILTY SAND & GRAVEL 10 11 12 13 14 15 16-::-: 17 SANDY SILTY CLAY 18 u. 19 ., 20 21 22 23 SILTY SAND 24.f#. SILTY SAND & GRAVEL WITH i:mss, Q Q0 COBBLE 25 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/23/2006 Initial WL: 40' �. �. Boring Complete: 10/23/2006 WL: 4.0, . Logged By: TM Water Checked: J 10/23/06 Two Rivers Testing, Inc. Approved By: TMC _ LOG OF TEST BORE - 14 (Log 2 of 5) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description SILTY SAND & GRAVEL WITH 26 COBBLE SILTY SAND WITH GRAVEL GROUNDWATER 0 SILTY SAND & GRAVEL WITH OBBLE The stratification lines 31 32 33 34 35 36 m d E H Z a0 Project: Project No.: Dry Density (pc Slurry Wall Design 2006-201 E J Yo Passing #200 represent the approximate boundary lines between soil and rock Water Observations Initial WL: 40' WL: 40' Water Checked: 1 10/23/06 T.R.T. types. Insitu, the transition may be gradual. Boring Started: 10/23/2006 Boring Complete: Logged By: Two Rivers Testing, Inc. Approved By: 10/23/2006 TM TMC LOG OF TEST BORE - 14 (Log 3 of 5) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) cu o o o 3 U Q >, v aci a Liquid Limit Plastic Index % Passing #200 Unconfined Strength (psf) n USCS/AASHTO ' '..?+R.,<�.... ,4"" --7-7...---c-, SILTY SAND & GRAVEL WITH 51 0'4, l,x; A;:,,,:-74, ieei/FY53 it - !�E ?r'rfl�, �r x y; or 1 ! erW .xi olfi! lti, ~l; x` !t,rt xx !L'IN.r ! G `!'tee. !i..K- it era... JJi °J°' 1S'J? °°4J° JV 0, JJJJ. J. y J�°.jj,��°JJj JJ:J3J: eJJk ti�o. 4 a JgiyV: AVG..' COBBLE 52 54 55 56 57 58 59 60 61 62 64 65 - 66` 67 SANDY SILTY CLAY 68 SILTY SAND & GRAVEL WITH COBBLE 69 70 71_ 72 73 :N. 74°J°°°�Q°Qt: 75 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations T . R T . Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 40' Boring Complete: 10/23/2006 WL: 40' Logged By: TM Water Checked: 10/23/06 Approved By: TMC LOG OF TEST BORE - 14 (Log 4 of 5) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description Depth (ft.) Sample Type SPT-N (BLOWS/FT) Water Content (%) Dry Density (pet) Liquid Limit x -a U w c° Passing #200 Unconfined Strength (psf) N a. fp 3 u) O _ co o v) n SANDY SILTY CLAY 76 . •:: 77 - 78 SILTY SAND & GRAVEL WITH 79 JD,j COBBLE 80 81 SANDY SILTY CLAY 82 .:.:.:.. SILTY SAND & GRAVEL 83 "' %. 84 85 86 87 88 r: rr +J\\ SILTY SAND & GRAVEL WITH 89-..r`eY� i COBBLE _xhr, 91 92 93 94 95 ..:zw 96 97 98 99 100 t g *; 7e t M- ; ta;.tx=e tre^;a •tr-et�� ;try. •t -E v£`r•er �r •r - ,• • ;'� --1 r ,,e7A kr The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations Boring Started: 10/23/2006 Initial WL: 40' �. Boring Complete: 10/23/2006 WL: 40, . 1 . Logged By: TM Water Checked: i 10/23/06 Two Rivers Testing, Inc. Approved By: TMC LOG OF TEST BORE - 14 (Log 5 of 5) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description CLAY a) 0 101 102 103 104 105 106 • 107 108 109 110 111 - SIL i Y SAND & GRAVEL WITH COBBLE 112 113 114 115 116 117 118 119 120 121 122 123 124 125 LL_ 0) z� iL a O Project: Project No.: The stratification lines represent the approximate boundary lines between Water Observations Initial WL: 40' WL: 40' Water Checked: 10/23/06 Slurry Wall Design 2006-201 E .Cr a) C. U co COBBLE "O N 0_ c U - • C U a) D V) soil and rock types. Insitu, the transition may be gradual T.R.T. Boring Started: 10/23/2006 Boring Complete: 10/23/2006 Logged By: Two Rivers Testing, Inc. Approved By: TM TMC LOG OF TEST BORE -15 (Log 1 of 5) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description SILTY SAND WITH GRAVEL SANDY SILTY CLAY SILTY SAND WITH GRAVEL 21 22 23 24 25 Project: Project No.: I- LL co Z 12. O a -' ri) m Slurry Wall Design 2006-201 E J a 7 J D u1 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. (Water Observations Initial WL: WL: 35' 35' Water Checked: 10/23/06 T.R.T. Two Rivers Testing, Inc. Boring Started: Boring Complete: O 3 UJ 10/23/2006 10/23/2006 Logged By: Approved By: TM TMC LOG OF TEST BORE -15(Log 2of5) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description �Fww aai 0 a 1- n E Co F_ z 3O a -' CO.m o ,_ � U w 0 O _ E Q x a o m d O O �' m o_ o N as C o rn U 2 D Co N a a m Cr) = cn Q Q o D t6'',:4'Ff rSli .L.a(3... ::ssaS,.ac.6'.,;:5 Gw ";•; 3..':.,. ./at'. z, r.,m`.r _. 'T4 ,. , -:Yr ,..,.r ,.. SANDY SILTY CLAY 26 27 28 29 ....... _ SILTY SAND WITH GRAVEL �'r' 30 31 -f 32 to 33 34 ,•y {� SANDY SILTY CLAY 35- SILTY SAND & GRAVEL ,„,, t•r 0 WITH COBBLE 36 Xr74 ;r;eri GROUNDWATER .tt"r;rtt' 37 - 38r� 39 _ 40 . 41 42 +' 43 44 - 45 46 47... 48 - 49 50 rt°r'e er? 4- fit' Rrrr;2 'der . rr r•. t;ry.re � yz+ r �!z't�;rrt rL r:e, trt rR* eri,,,) 6 z �h r`'` ;r'.z ye;rr,o •� a �;tz �rtr�z �xtrrrtli -rt.t�tr� .r;,• r, •t• ZRx esi. eF lc, -tr; '6: ...*-4-. * .x -r t 1 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations ►�� T . R. 1 . Two Rivers Testing, Inc. Boring Started: 10/23/2006 Initial WL: 35' Boring Complete: 10/23/2006 WL: 35' Logged By: TM Water Checked: ( 10/23/06 Approved By: TMC LOG OF TEST BORE - 15 (Log 3 of 5) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range 65 West Description SILTY SAND & GRAVEL WITH COBBLE a a) 0 51 52 53 54 55 56 57 58 59 60 61 62 63 - 64 65 66 67 68 69 70 71 72 73 74 75 Project: Project No.: c O O U a c N 0 0 The stratification lines represent the approximate boundary lines between soil and rock types Water Observations Initial WL: 35' WL: 35' Water Checked: 10/23/06 T.R.T. Two Rivers Testing, Inc. Slurry Wall Design 2006-201 C J •0 o - J Insitu, the transition may be gradual. Boring Started:. 10/23/2006 Boring Complete: 10/23/2006 Logged By: Approved By: TM TMC LOG OF TEST BORE - 15 (Log 4 of 5) Client: Site: Dust & Dirt Excavating Sec 4 Township 5 North Range -65 West Description a n N The stratification 76 77.. 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Project: Project No.: C O U N 0 ta Q C C O O Slurry Wall Design 2006-201 E J J lines represent the approximate boundary lines between soil and rock types. Insitu Water Observations Initial WL: 35' WL: 35' Water Checked: 10/23/06 T.R.T. Two Rivers Testing, Inc. D O. � v C L C C) O • 5) D • O) the transition may be gradual. Boring Started: C a 3 10/23/2006 Boring Complete: 10/23/2006 Logged By: Approved By: TM TMC LOG OF TEST BORE - 15 (Log 5 of 5) Client: Dust & Dirt Excavating Project: Slurry Wall Design Site: Sec 4 Township 5 North Range 65 West Project No.: 2006-201 Description a) o a ~ a) cn cn Z> d9 lib- m 0 U � ° 0 a .) c co a L-,m 2 o _ E 7Oc� x CO n n. o co a u3 0 -- N c a. ceil c - S a c`n c a m ui O z CO 0 co SILTY SAND & GRAVEL WITH . 101 90 o°;'a�°� a�aAtc ;gie. p 19.4, a�,�4a a �: ��,'� JilaG a°ac ga� a. 39 9 OM 9,494 'i COBBLE 102 103 104 -' 105 ; 106 107 -a4,'"` 108 -4 109 110 111 SILTSTONE (WEATHERED - BROWN) 112 1.- 113 114 115 F--- 76 ' -- SILTSTONE (GREYI 122 116 !, 117 !` - 118 11s ' 120 - 121 122 123 124 - 125 - 107 ' 137 i 1 1 `� 95 The stratification lines represent the approximate boundary lines between soil and rock types. Insitu, the transition may be gradual. Water Observations 4Boring Started: 10/23/2006 Initial WL: 35' T.R.T. Boring Complete: 10/23/2006 WL: 35'Logged By: TM Water Checked: 10/23/06 Two Rivers Testing, Inc- Approved By: TMC SUMMARY OF TEST RESULTS Client: Dust & Dirt Excavation Project Name: Slurry Wall Design Project No: 2006-201' SUMMARY OF TEST RESULTS Test Bore No. Depth (ft) Moisture o (%) Dry Density (pcf) Compressive Strength (psf) Swell Pressure (psf) Liquid Limit (%) Plasticity Index (%) % Passing No. 200 USCS AASHTO Classification Penetration (Blows/12 inches) 1 30 7.3 3.5 GP 1 49 111 1 51 119 1 52 74 1 54 104 2 85 68 2 86 82 2 87 60 2 88 125 2 89 76 3 75 6.3 3.9 GW 3 87 687 3 88 224 4 38 16.7 3.2 SP 4 85 86 4 86 122 4 87 60 4 88.5 31-6" 5 3.5 0.9 1.5 SP 5 80 71 5 82 91 5 83 88 5 84 126 I Test Bore No. Depth (ft) Moisture (%) Dry Density (pcf) Compressive Strength (psf) Swell Pressure (psf) Liquid Limit (%) Plasticity Index (/o) % Passing No. 200 USCS AASHTO Classification Penetration (Blows/12 inches) 5 85 45 6 89 20.1 6 90 88 6 91 74 6 92 89 6 93 63 7 77 B3 7 78 18.0 33 16 86.9 CL A 6 104 8 64 31.0 20 39 21 97.5 CL A-6 8 79 93 8 80 159 8 81 94 8 82 148 8 83 90 8 84 125 9 90 99 9 91 75 9 92 122 9 93 91 10 83 141 10 84 62 10 85 92 10 86 75 10 87 100 10 88 56 11 86 17.4 30 11 86.1 CL A-6 I Test Bore No. Depth (ft) Moisture o (TO Dry Density (pcfl Compressive Strength (psf) Swell Pressure (psf) Liquid Limit (pro) Plasticity o Index (%) % Passing No. 200 USCS AASHTO Classification Penetration (Blows/12 inches) 11 88 67 11 89 80 11 90 106 11 91 60 11 92 140 11 93 73 12 8 3.1 0.6 GP 12 74 127 12 76 124 12 78 91 13 87 104 13 88 161 13 89 83 13 90 92 13 91 58 13 92 116 13 93 96 13 94 112 13 95 58 13 96 71 13 97 101 14 N/A 15 114 76 15 115 122 15 116 109 15, 117 137 I Test Bore No. Depth ft ( ) Moisture % ( ) Dry Density (pcf) Compressive Strength (psf) Swell Pressure (psf) Liquid Limit (%) Plasticity o Index (1 ) % Passing No. 200 USCS AASHTO Classification Penetration (Blows/12 inches) 15 118 95 APPENDIX E J&T Consulting, Inc. Broken Arrow Investments, LLC - Derr Pit Project Slope Stability Analysis 125°W SOON Peak cceleratAon (%g) 120°W 115°W 105°W 110°W ash 2% 120°W 100°W 115°W 110°W ffity ,4 Exceed -awe t0 2, r rev 96°Nly 50°N 105°W 45° N ars 300 200 160 120 80 60 50 40 30 20 18 16 14 12 10 8 6 4 2 0 Hello