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DRC-2014-006294 - 0901a068804abac0
&E*uYF,ELs Encrgy Fucls Rcsources (USA) Inc. 225 Union Blvd. Suite 6@ Lakewood, CO, US,802E 3tt3 974 2140 www.e ncrgyfucls.colnDRC-2014-006292 October 16,2014 Sent VIA OVERNIGHT DELMRY Mr. Ru.sty Lundberg I)irector Division of Radiation Control Utah Department of Environmental Qualify 195 North 1950 West P.O. Box 144850 Salt Lake Ciry. UT 841144820 Re: Transmittal of Tallings Data Analysls lteport lVhite Mesa Uranium Mlll, Radioactive Materials License UT 19m479 Dear Mr. Lundberg: Attached please find two copies of the Whitc Mesa Uranium Mill Tailings Data Analysis Report as well as two CDs each containing a word searchable elcctronic copy of thc rcport. The report addresses URS's review comments attached to the Division of Radiation Control ("DRC") letter dated September 24,2Ar4. If you should have any questions regarding this report please contact me at 303-389-4134. Yours vcry lruly. "{**4hr*---( Exr.ncy Frlrls RrsorrRcrs (USA) Ixc. Kathy Weinel Quality Assurance Manager CC; David C. Fiytlcnlund Harold R. Roberts David 8,. Turk Dan Hillsten Ssott Bakkcn ^/ © MWH BUILDING A BETTER WOULD Energy Fuels Resources (USA) Inc. WHITE MESA MILL Tailings Data Analysis Report October 2014 DRC-2014-006294 3665 JFK Parkway Suite 206 Fort Collins, CO USA Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. i October 2014 TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................................... 1 1.1 Project Background ............................................................................................... 1 1.2 Objectives of Tailings Investigation ....................................................................... 2 2.0 TAILINGS INVESTIGATION ............................................................................................ 3 2.1 CPT Soundings ..................................................................................................... 3 2.2 Direct Push Sampling ............................................................................................ 7 3.0 LABORATORY INVESTIGATION .................................................................................... 8 4.0 TAILINGS CHARACTERIZATION ................................................................................. 11 4.1 Tailings Classification .......................................................................................... 11 4.2 Pore Pressures .................................................................................................... 12 4.3 Tailings Density ................................................................................................... 13 4.4 Hydraulic Conductivity ......................................................................................... 14 4.5 Consolidation Properties ..................................................................................... 16 5.0 SUMMARY ...................................................................................................................... 18 6.0 REFERENCES ................................................................................................................ 19 LIST OF TABLES Table 2-1 CPT Testing Summary Table 3-1 Geotechnical Laboratory Testing Schedule Table 3-2 Summary of Laboratory Testing Results Table 4-1 Estimated Elevation of Top of Saturated Tailings Table 4-2 Summary of In-Situ Tailings Density from Laboratory Testing and Estimated from CPT Soundings Table 4-3 Recommended Tailings Density Values for Analysis Table 4-4 Summary of Laboratory Measured Vertical Hydraulic Conductivity Table 4-5 Summary of Estimated Horizontal Hydraulic Conductivity from CPT Data Table 4-6 Estimation of Hydraulic Conductivity for Sand Tailings Samples Table 4-7 Summary of Laboratory Measured Consolidation Parameters Table 4-8 Summary of Estimated Horizontal Coefficient of Consolidation from CPT Soundings LIST OF FIGURES Figure 1-1 Regional Location Map Figure 2-1 CPT Sounding and Sampling Locations Figure 2-2 Thickness Contours of Interim Cover and Tailings Figure 4-1 Estimated Elevation of Top of Saturated Tailings, October 2013 Figure 4-2 Thickness of Saturated Tailings, October 2013 LIST OF APPENDICES Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. ii October 2014 Appendix A Cone Penetration Testing Results Appendix B Subsurface Exploration Logs Appendix C Direct Push Sampling Photographs Appendix D Geotechnical Laboratory Test Results Appendix E Interpretation Graphs of CPT and Laboratory Data Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 1 October 2014 1.0 INTRODUCTION This report presents the results of the tailings investigation of Cells 2 and 3 at the White Mesa site. This report has been prepared for Energy Fuels Resources (USA), Inc. (EFRI) by MWH Americas, Inc. (MWH) for submittal to the Utah Division of Radiation Control (DRC). The objectives and background for this report and supporting data are summarized below. The DRC requested that EFRI collect site-specific tailings data to supplement existing data used for technical analyses in the White Mesa Reclamation Plan, Version 5.0 (Denison, 2011) and the Infiltration and Contaminant Transport Modeling (ICTM) Report (MWH, 2010). This request was part of DRC’s February 2013 review comments (DRC, 2013a, b) on EFRI’s August and September 2012 responses to DRC’s Round 1 interrogatories for the White Mesa Reclamation Plan Rev. 5.0 and the ICTM Report (EFRI, 2012a, b). 1.1 Project Background The White Mesa Uranium Mill (Mill) is located in San Juan County in southeastern Utah, approximately 6 miles south of Blanding, Utah. The site is located on White Mesa, a flat area bounded on the east by Corral Canyon, to the west by Westwater Creek, and to the south by Cottonwood Canyon. A site location map is shown in Figure 1-1. The Mill is located at an elevation of 5,600 ft above mean sea level. EFRI facilities consist of a uranium processing mill and five lined tailings/process solution storage cells located within an approximately 686-acre restricted area. The tailings cells are located south of the Mill and comprise the following: Cell 1 – 55 acres, used for the evaporation of process solutions Cell 2 – 65 acres, used for storage of barren tailings sands (which has been filled with tailings sands and covered with interim cover) Cell 3 – 70 acres, used for storage of barren tailings sands (which has been partially covered with interim cover, and is currently receiving mill waste in the center of the cell) Cell 4A – 40 acres, used for storage of barren tailings sands and evaporation of process solutions Cell 4B – 40 acres, currently being used for evaporation of process solutions The Mill was initially licensed by the United States Nuclear Regulatory Commission (NRC) in August 1979, and the tailings system was licensed in May 1980 under NRC Source Material License No. SUA-1358. After the State of Utah became an Agreement State for uranium mills in August 2004, the NRC license was replaced with the current State of Utah License (License) and the Ground Water Discharge Permit (GWDP). EFRI (formerly Denison Mines (USA) Corp.) submitted an application to DRC for License renewal on February 27, 2007 and for renewal of the GWDP on September 2, 2009. Updated GWDP renewal applications were submitted in 2012 and 2014. Among the documents submitted to DRC in support of the license and permit renewals, the most recent EFRI documents reviewed by DRC for the license renewal include the Reclamation Plan, Revision 5.0 (Denison, 2011) and the ICTM Report (MWH, 2010). The ICTM Report was originally submitted in support of the GWDP renewal. DRC provided interrogatories for these documents in March 2012 (DRC, 2012a, b) in regards to the license renewal. EFRI provided responses to these interrogatories for the Reclamation Plan, Revision 5.0 in May and August 2012 (Denison, Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 2 October 2014 2012a; EFRI, 2012a) and for the Revised ICTM Report in May and September 2012 (Denison, 2012b; EFRI, 2012b). DRC provided review comments on EFRI’s responses in February 2013 (DRC, 2013a, b). On April 30, 2013, EFRI, DRC, MWH, and URS Corporation (URS) met at URS’ office in Denver, CO to discuss specific issues identified in DRC’s February 2013 review comments, including DRC’s request for site-specific tailings data. EFRI proposed a tailings investigation to address the request for additional information and committed to provide DRC with a work plan for the investigation. The initial work plan for the proposed tailings investigation (MWH, 2013a) was provided to DRC on June 24, 2013. DRC provided comments on the work plan in a letter dated July 2, 2013 (DRC, 2013c). A revised work plan (MWH, 2013b) and responses to DRC comments (MWH, 2013c) were provided to DRC on August 1, 2013. DRC provided approval of the work plan verbally to EFRI on September 12, 2013 (EFRI, 2013). Prior to starting the investigation, MWH provided a final update to the work plan to EFRI on October 10, 2013 (MWH, 2013d). The final update included the following procedural revisions: 1) improved sample handling and shipping procedures, 2) replacement of the recommended geotechnical laboratory with two alternative certified laboratories (due to the previously listed laboratory no longer having a valid radioactive materials license), 3) added text to note the settlement had been checked prior to the investigation, and 4) updated schedule for the field investigation. 1.2 Objectives of Tailings Investigation The objectives of the tailings investigation (outlined in the work plan) are listed below: Address the DRC request for site-specific tailings data Characterize the tailings to clarify the tailings stratigraphy and measure the physical properties associated with tailings consolidation, settlement, and pore water drainage Conduct tailings characterization with Cone Penetration Test (CPT) soundings, direct push sampling, and geotechnical laboratory testing on selected representative tailings samples Conduct the CPT soundings and sampling in areas of Cells 2 and 3 that are accessible for exploration, and in a manner that does not damage the underlying drainage and liner system in the cells The results of this investigation will be used to update technical analyses to address DRC review comments on the Reclamation Plan Revision 5.0 and the revised ICTM Report. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 3 October 2014 2.0 TAILINGS INVESTIGATION The tailings investigation within Cells 2 and 3 was conducted between October 15 and 23, 2013 and included CPT soundings followed by direct push sampling to calibrate the CPT results and collect samples for geotechnical laboratory testing. The remaining cells (Cells 1, 4A and 4B) could not be accessed with the CPT rig. Cell 1 and 4B contain process solutions only. Cell 4A is partially filled with tailings and process solutions, with a small portion of the tailings beach visible. In addition, there is a small area in the center of Cell 3 that could not be accessed with a CPT rig. This inaccessible area was receiving mill waste and was not covered with interim cover. The health and safety practices and procedures to minimize exposure of radioactive materials outlined in the work plan were followed during the tailings investigation. 2.1 CPT Soundings Seven CPT soundings at locations adjacent to selected settlement monuments in both Cell 2 and Cell 3 were proposed in the approved work plan (MWH, 2013b). Figure 2-1 shows locations where the CPT soundings were conducted for the field investigation. The locations shown on Figure 2-1 include the same locations proposed in the work plan, as well as locations added during the investigation. Two additional CPT soundings were conducted in Cell 2 between settlement monument 2W6-S and the Cell 2 sump location. These locations were added during the investigation at the request of EFRI to collect additional information on water levels near the sump. In addition, two CPT soundings, CPT-2W3A and CPT-2W4-CA, were added for Cell 2 adjacent to settlement monuments 2W3 and 2W4-C to conduct additional pore pressure dissipation tests at these locations. CPT-3-7S was proposed in the work plan, however debris was encountered and refusal occurred during the CPT probe advancement, as well as at an adjacent location where a second attempt was made (CPT-3-7SA). CPT-3-8S was added during the investigation to replace CPT-3-7S. ConeTec, Inc. (ConeTec) of Salt Lake City, Utah conducted the CPT soundings under supervision by MWH personnel. The CPT soundings were performed in accordance with ASTM D5778-12 and industry standard practices. A compression model electronic piezocone penetrometer, with a 15-cm2 tip and a 225-cm2 friction sleeve was used for the testing. ConeTec used a track-mounted CPT rig to advance the CPT probe into the tailings. The CPT probe was advanced into the subsurface vertically at a constant rate to obtain a continuous profile of the tailings at each location. Upon completion of the sounding, the CPT probe was retracted. The holes partially caved upon retraction, and were then backfilled using bentonite pellets from the ground surface and hydrated. The CPT probe depths for the soundings conducted were less than the maximum allowable probe depths provided in the approved work plan (MWH, 2013b) for all the locations except CPT-3-8S, CPT-2W6-S(2), and CPT-2W6-S(3). For these CPT locations added during the field investigation, the maximum allowable probe depth was estimated using the same procedure provided in the work plan and the depths were provided to field personnel prior to conducting the soundings. The total depth of each sounding is shown on Figure 2-1 and in Table 2-1. For comparison purposes, total thickness contours of interim cover and tailings are provided in Figure 2-2. The total thickness of interim cover and tailings at each CPT location, as well as each settlement monument, are also shown on Figure 2-2. Cone tip resistance, sleeve friction, and dynamic pore pressures were measured at 2-inch intervals for each sounding location. Shear wave velocity measurements were performed for Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 4 October 2014 locations designated in Table 2-1 and the weighted average velocity over the profile is listed in the summary table. Pore pressure dissipation tests were conducted at select depths based on review of CPT sounding measurements and to assist with estimating static phreatic levels or pore pressures. A total of 28 pore pressure dissipation tests were conducted, and the results are summarized in Table 2-1. The ConeTec field report with CPT data and field logs for the CPT soundings is provided as Appendix A. Field logs of CPT soundings were obtained electronically in real time during soundings. The log recorded an approximate location and depth (0.2 foot accuracy) of each sounding. The log includes tip and sleeve resistances, pore pressures, and other measured parameters. In addition, the logs contain interpretations of CPT measurements using published correlations (e.g. for soil behavior type). Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 5 October 2014 Table 2-1 CPT Testing Summary Tailings Cell CPT Sounding Elevation (ft) Latitude/ Longitude CPT Depth (ft) PPD1 Testing Shear Wave Velocity2 (ft/s) PPD Depth (ft) Pore Pressure at PPD Depth (ft) Water Table Calculated from PPD Test (ft) Cell 2 CPT-2W2 5615.86 37.533317/ -109.512367 20.34 13.94 11.2 2.8 459 CPT-2W3 5615.72 37.533617/ -109.511300 21.65 18.54 18.4 0.2 457 21.65 24.1 -- CPT-2W3A 5615.72 37.533617/ -109.511283 4.43 3.12 0 3.2 -- 3.94 0 3.9 4.43 4.2 0.2 CPT-2W4-C 5616.24 37.533100/ -109.509967 26.57 17.39 12.1 5.3 510 CPT-2W4-CA 5616.24 37.533100/ -109.509950 9.35 6.07 0.6 5.5 -- 9.35 5.2 4.2 CPT-2W5-C 5615.86 37.532917/ -109.508467 30.18 12.63 11.0 1.7 606 CPT-2W6-S 5615.85 37.532183/ -109.507033 29.20 15.09 4.5 10.6 485 29.20 16.9 12.3 -- CPT-2W6-S(2) 5614.93 37.532133/ -109.507417 25.59 19.85 7.8 12.0 -- CPT-2W6-S(3) 5614.66 37.532050/ -109.507700 25.10 21.65 12.9 8.8 -- CPT-2W7-C 5619.60 37.532533/ -109.505300 28.05 15.09 8.5 6.5 539 CPT-2E1 5619.95 37.532800/ -109.503700 28.05 20.51 11.3 9.2 530 Notes 1. PPD = pore pressure dissipation 2. Shear wave velocities were measured for the CPT soundings indicated. The velocity values listed are the weighted average over the profile. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 6 October 2014 Table 2-1 CPT Testing Summary (continued) Tailings Cell CPT Sounding Elevation (ft) Latitude/ Longitude CPT Depth (ft) PPD Testing Seismic Velocity (ft/s) PPD Depth (ft) Pore Pressure at PPD Depth (ft) Water Table Calculated from PPD Test (ft) Cell 3 CPT-3-1S 5612.56 37.530767/ -109.515350 17.88 12.80 8.2 4.6 488 CPT-3-2C 5610.82 37.532400/ -109.513783 20.34 12.47 6.9 5.5 463 CPT-3-3S 5609.63 37.530600/ -109.514433 23.79 18.86 14.9 4.0 549 CPT-3-4N 5608.70 37.530600/ -109.514467 21.16 13.12 13.8 -- 369 21.16 18.5 2.7 -- CPT-3-6N 5607.44 37.531933/ -109.511650 18.54 8.86 5.6 3.2 418 18.54 15.3 3.2 -- CPT-3-7S3 5607.63 37.531330/ -109.508800 8.04 No PPD Test -- CPT-3-7SA3 5607.63 37.529600/ -109.508067 10.01 9.02 9.4 -- -- CPT3-8N 5608.37 37.529783/ -109.505833 15.26 10.01 6.5 3.5 518 CPT-3-8S 5608.70 37.529050/ -109.504883 15.26 3.94 4.6 -- 494 6.07 0.8 5.3 15.26 10.2 5.1 Notes 1. PPD = pore pressure dissipation 2. Shear wave velocities were measured for the CPT soundings indicated. The velocity values listed are the weighted average over the profile. 3. Refusal at 8 and 10 feet for CPT-3-7S and CPT-3-7SA, respectively. CPT-3-8S added to replace this location. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. 7 MWH Americas, Inc. October 2014 2.2 Direct Push Sampling Direct push sampling was completed after the CPT soundings. ConeTec performed the direct push sampling under the direction of MWH personnel. It was proposed in the approved work plan to have two locations per tailings cell (four total) selected during the field program based on the results of the CPT soundings. Direct push sampling was actually conducted at the nine sampling locations shown on Figure 2-2. The locations were selected to span the range of material responses (e.g. pore pressures, soil behavior types) measured during CPT testing, as well as to provide sufficient tailings samples for laboratory testing. Samples depths were selected based on review of the CPT results. Piston-type samplers were used to collect relatively undisturbed samples without generating soil cuttings. The direct push samplers were deployed from the CPT rig. The samplers have 1.5- inch inner diameters and are 24 inches in length. The soil sampler was initially pushed in a “closed” position to the desired sampling interval. The inner cone tip portion of the sampler was then retracted leaving a hollow sampler with an inner liner containing soil sample tubes (1.5 inches in diameter). The hollow sampler was then pushed in a locked “open” position to collect a soil sample. The filled sampler and push rods were then retrieved to the ground surface. Each sample was assigned a designation based on the tailings cell number, site location, and the depth interval. The sample designation and date was recorded on the sample tube. Each sample tube had the end caps secured with wax. Upon completion of direct push sampling, the sampler was retracted. The holes partially caved upon retraction, and were then backfilled using bentonite pellets from the ground surface and hydrated. The primary objective of the direct push sampling was to provide site-specific correlation of CPT results. Samples collected were shipped to S&ME, Inc. (S&ME) in Knoxville, Tennessee. Handling and shipping of samples was conducted in accordance with EFRI standard procedures for the Mill. Geotechnical laboratory testing was conducted on selected samples and the results are summarized in Section 3. A sampling log was recorded for each direct push location. The logs are provided in Appendix B. Photographs of samples collected are provided as Appendix C. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. 8 MWH Americas, Inc. October 2014 3.0 LABORATORY INVESTIGATION Geotechnical laboratory testing was conducted on selected samples collected during the tailings investigation. Laboratory testing was conducted by S&ME in Knoxville, Tennessee. S&ME has a current radioactive materials license for geotechnical testing of radioactive soil samples. S&ME was listed as a potential geotechnical laboratory for the tailings samples in the final version of the work plan provided to EFRI on October 10, 2013. This laboratory, as well as CB&I Federal Services, LLC, were added to the work plan to replace Advanced Terra Testing, Inc. as potential testing laboratories after Advanced Terra Testing, Inc. informed MWH that their radioactive materials license was currently in the process of being renewed and would not be valid at the time of the investigation. Laboratory tests included natural water content, in-situ dry density, grain-size analysis (sieve and hydrometer), Atterberg limits, specific gravity, hydraulic conductivity, and consolidation testing. The number and type of tests are summarized in Table 3-1. The actual testing schedule is similar to the anticipated testing schedule in the approved work plan. The actual testing schedule was updated from the schedule listed in the approved work plan based on review of actual samples collected. The tested samples were selected to span the range of tailings materials encountered and to provide a site-specific correlation of CPT sounding results. All laboratory testing was conducted according to applicable ASTM standards. A detailed summary of the results (Table D-1) and the S&ME laboratory testing report are provided in Appendix D. The test results are summarized in Table 3-2 by tailings type (i.e. sand, sand-slime, and slime). Evaluation of tailings type is discussed in Section 4.1. Table 3-1 Geotechnical Laboratory Testing Schedule Geotechnical Laboratory Test No. of Tests ASTM Standard Natural Moisture Content and Density 34 ASTM D2216 and D2937 Particle Size (sieve and hydrometer) 8 ASTM D422 Particle Size (sieve and No. 200 wash) 11 ASTM D6913 Particle Size (No. 200 wash) 1 ASTM D6913 Specific Gravity 5 ASTM D854 Atterberg Limits 13 ASTM D4318 Permeability Test 5 ASTM D5084 Consolidation Test 5 ASTM D2435 It is likely that gypsum is present in the tailings at White Mesa, based on the ore geology and the acid leach process used in the mill. However, the laboratory testing procedures were not modified to account for gypsum. This is consistent with tailings characterization testing conducted at other uranium tailings facilities under Uranium Mill Tailings Remedial Action (UMTRA) work for the U.S. Department of Energy (DOE). If gypsum is present in the tailings, testing results for moisture content and particle size distribution (using the hydrometer) can show higher values of natural moisture content and fines content using standard testing methods than sample preparation and testing procedures modified to account for gypsum. Saturated tailings thicknesses were estimated using CPT testing results, and natural moisture contents were measured as a check for estimating the saturated tailings thicknesses. Use of higher natural moisture contents for this evaluation would result in conservatively high saturated tailings thicknesses. In addition, the results of this evaluation would not change if the natural moisture contents were reduced. Natural moisture contents will not be used in any future technical analyses for the Reclamation Plan and ICTM Report. The measured percent fines for Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. 9 MWH Americas, Inc. October 2014 the tailings samples were used with the CPT test results to classify the tailings (see Section 4.1). The tailings were classified using the method from Larson and Mitchell (1986) based on measured laboratory and CPT data for uranium tailings from numerous sites. The measured laboratory data used for the Larson and Mitchell (1986) study did not account for gypsum in the tailings. Therefore, the tailings classification for the White Mesa tailings would not change if the hydrometer testing were modified to account for gypsum. The measured percent fines of the tailings will be used for liquefaction analyses, but is not planned to be used for any other technical analyses for the Reclamation Plan and ICTM Report. A reduction in the percent fines to account for gypsum in the tailings would not significantly affect the tailings liquefaction analysis results. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 10 October 2014 Table 3-2 Summary of Laboratory Testing Resultsa Tailings Typeb % Finer than No. 200 Sieve Natural Water Content (%) In-Situ Dry Density (pcf) Atterberg Limits (%)c Hydraulic Conductivity (cm/s) Consolidation Propertiesf LL PL PI Specific Gravity Cc cvg (cm/s) Sand 18 (11.2 – 29.2) 27 (25.5 – 29.2) 97 (93.5 – 98.3) Not Tested Not Tested Not Tested Not Tested Sand- Slime 47 (34.2 – 58.1) 35 (13.2 – 71.6) 88 (56.2 – 114.4) 34 (26 – 54) 23 (19 – 30) 10 (6 – 24) 2.80 (2.77 – 2.84) 9.0E-07e (1.6E-07 – 3.3E-06) 0.32 (0.11 – 0.66) 0.001 (0.0005 – 0.002) Slime 71 (60.2 – 97.0) 41 (29.3 - 63.8) 78 (61.0 – 94.6) 41 (31 – 68) 26 (23 – 36) 16 (7 – 32) 2.86d (2.85 – 2.86) 1.3E-06d,e (1.7E-07 – 9.8E-06) 0.28d (0.27 – 0.28) 0.002d (0.0005 – 0.003) Notes: a. Average laboratory values shown in table with ranges shown in parentheses b. Sand tailings (0 – 30% fines); Sand-slime tailings (30 – 60% fines); Slime tailings (60 – 100% fines) (adjusted from ranges defined in Larson and Mitchell, 1986) c. NP = non-plastic; LL = liquid limit (%); PL = plastic limit (%); PI = plasticity index (%) d. Two samples tested. e. Geometric mean f. Cc = compression index; cv = coefficient of consolidation g. cv value estimated from linear portion of consolidation curve cm/s = cubic meters per second, pcf = pounds per cubic foot Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 11 October 2014 4.0 TAILINGS CHARACTERIZATION CPT field data and laboratory testing results were used to characterize the tailings at the White Mesa site. Material properties estimated based on this data will be used in technical analyses to address DRC review comments on the Reclamation Plan Revision 5.0 and the revised ICTM Report. Appendix E includes figures used to assist with interpreting the CPT and laboratory data. 4.1 Tailings Classification A number of criteria have been used for classifying soil types from CPT measurements, including the method by Lunne, Robertson, and Powell (1997). This method is based on soil behavior type zones, and is used by the CPT contractor, ConeTec. The criteria used to categorize the tailings for this investigation were based upon criteria used by the DOE for interpreting CPT tests in uranium tailings (Larson and Mitchell, 1986). As noted in Larson and Mitchell (1986), classification of tailings using soil behavior type zones similar to the method by Lunne, Robertson, and Powell (1997) result in a higher level of uncertainty than the classification method presented in Larson and Mitchell (1986). The DOE criteria divide uranium tailings into three general categories based upon the percentage of material finer than the No. 200 sieve (% fines) by weight as follows: Sand Tailings (0 to 30 percent passing the No. 200 sieve) Sand-Slime Tailings (30 to 70 percent passing the No. 200 sieve) Slime Tailings (70 to 100 percent passing the No. 200 sieve) The DOE criteria provide a correlation between CPT results, specifically the cone tip resistance and the side-friction/tip-resistance ratio, and these three tailings classifications. This correlation from Larson and Mitchell (1986) is shown on Figure E.1-1 in Appendix E. CPT data from the White Mesa tailings investigation are shown on the graph for locations where laboratory data is also available. The data points are designated as sand, sand-slime, or slime tailings based on their respective laboratory measured percent passing the No. 200 sieve results. The measured percent passing the No. 200 sieve value is shown adjacent to each data point. As shown in the figure, the samples classified as sand tailings based on percent fines fall within the sand-slime tailings range of the graph (neglecting the one outlier sample result). The samples classified as sand-slime tailings based on percent fines fall within both the sand-slime and slime tailings ranges on the graph. The samples classified as slime tailings based on percent fines fall within the slime tailings range on the graph. Correlation with the laboratory results for percent fines and the Larson and Mitchell (1986) graph indicate that better site-specific correlation would be obtained if the material definitions based on percent fines were modified and the curves adjusted so that the sand/sand-slime tailings are combined and the sand-slime/slime cutoff is shifted. The recommended modifications to the classifications for the White Mesa tailings are listed below and Figure E.1-2 shows the data points classified using this criteria on the adjusted graph. Sand Tailings (0 to 30 percent passing the No. 200 sieve) Sand-Slime Tailings (30 to 60 percent passing the No. 200 sieve) Slime Tailings (60 to 100 percent passing the No. 200 sieve) Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 12 October 2014 Figure E.1-3 and Figure E.1-4 show all the CPT data (cone resistance versus friction ratio) for Cells 2 and 3, respectively, along with the adjusted graph for denoting the division between sand/sand-slime and slime tailings. Using these figures, approximately 20 percent of the tailings are categorized as slime tailings and the remainder is categorized as sand and sand- slime tailings for both Cell 2 and Cell 3. Figure E.1-5 through Figure E.1-20 show the CPT data (cone resistance versus friction ratio) for each CPT location and the recommended sand/sand-slime and slime tailings division. These figures indicate a range of approximately 5 to 50% tailings slimes for the CPT soundings in both Cell 2 and Cell 3. Review of these figures, as well as the boring logs and laboratory results indicate there is minimal segregation of tailings within each cell. This is expected, since the tailings discharge points in Cells 2 and 3 were located throughout the cells and not just along the perimeter. The tailings in Cells 2 and 3 also appear to be similar in particle size distribution and other geotechnical characteristics. The tailings within Cells 2 and 3 were processed from similar ores and using the same crushing, grinding and processing procedures. The tailings within Cells 2 and 3 are expected to be relatively uniform based on tailings deposition history and tailings processing procedures. 4.2 Pore Pressures Both CPT pore pressure dissipation tests and dynamic pore pressure measurements were evaluated to estimate the top of the saturated tailings zone. Equilibrium pore pressures measured during pore pressure dissipation tests often yield values that are higher than actual steady-state pore pressure at the specific location and depth. Figure E.2-1 through Figure E.2- 16 show pore pressure versus elevation for the CPT soundings. Dynamic pore pressures and the results from the pore pressure dissipation tests are shown on the figures. The estimated elevation of the top of the saturated tailings shown on the figures was selected as the depth where continuous elevated dynamic pore pressures were encountered. Dynamic pore pressures typically represent the upper bound of the actual equilibrium pore pressures since they are the sum of the equilibrium pore pressure and excess pore pressures due to shearing. The pore pressures due to shearing are usually positive unless the tailings are heavily overconsolidated. There are some thin zones within the saturated tailings where dynamic pore pressures are less than hydrostatic pressures, indicating potential heavily overconsolidated lenses. There are also some lenses of elevated pore pressures at shallow depths, but these are considered perched zones in the interim cover and/or tailings due to seasonal fluctuations. Hydrostatic pore pressures with depth are shown on the figures and were used to assist with estimating the top of the saturated tailings by evaluating the trend of pore pressures below this depth. The estimated elevations of the top of the saturated tailings at the CPT locations are listed in Table 4-1 and shown in Figure 4-1. Figure 4-2 shows the estimated saturated tailings thicknesses. As shown in Figure 4-1, the top of saturated tailings elevation is lower for locations closer to the Cell 2 sump, indicating migration of water towards the sump in Cell 2. For Cell 3, the top of saturated tailings elevations range from approximately 5603 to 5606 feet. Dewatering has not yet started in Cell 3; therefore, it is expected that the tailings would have a relatively consistent top of saturated tailings elevation. EFRI measured water level elevations in the Cell 3 sump through the spring of 2011. The water level elevations measured during 2010 through 2011 ranged from 5600 to 5605 feet, and were similar to the top of saturated tailings elevation estimated from the recent tailings investigation. Additional mill waste has been added to Cell 3, but additional process solutions have not been added; therefore it is reasonable to assume that Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 13 October 2014 the past water level readings are similar to the top of the saturated tailings elevations estimated from the field investigation. Table 4-1 Estimated Elevation of Top of Saturated Tailings Tailings Cell CPT Sounding CPT Sounding Ground Surface Elevation (ft) Estimated Depth to Top of Saturated Tailings (ft) Estimated Elevation at Top of Saturated Tailings (ft) Cell 2 CPT-2W2 5615.86 3.9 5611.96 CPT-2W3/CPT-2W3A 5615.72 4.3 5611.42 CPT-2W4-C/CPT-2W4-CA 5616.24 8.9 5607.34 CPT-2W5-C 5615.86 10.0 5605.86 CPT-2W6-S 5615.85 11.5 5604.35 CPT-2W6-S(2) 5614.93 11.0 5603.93 CPT-2W6-S(3) 5614.66 11.5 5603.16 CPT-2W7-C 5619.60 9.2 5610.40 CPT-2E1 5619.95 11.2 5608.75 Cell 3 CPT-3-1S 5612.56 8.7 5603.86 CPT-3-2C 5610.82 5.6 5605.22 CPT-3-3S 5609.63 3.8 5605.83 CPT-3-4N 5608.70 3.8 5604.90 CPT-3-6N 5607.44 4.2 5603.24 CPT3-8N 5608.37 3.5 5604.87 CPT-3-8S 5608.70 5.2 5603.50 4.3 Tailings Density Density testing was performed on sand, sand-slime and slime tailings samples collected from the direct push sampling. The testing results were presented in Table 3-2 and are summarized below in Table 4-2. Figure E.2-1 and Figure E.2-2 show laboratory-measured total and dry density values versus depth, respectively. The data points are designated as sand, sand-slime, or slime tailings based on the modified criteria provided in Section 4.1. The range of measured densities is also shown on the figures. The figures indicate that there is not a relationship for density with depth. Density values for sand tailings samples are typically higher than for slime tailings samples. Density values for sand-slime tailings vary across the total range of measured values for all tailings types. Figure E.2-3 through Figure E.2-10 show laboratory measured total and dry density versus depth for each CPT location where samples were collected to measure in-situ densities. These figures also indicate that there is not a clear increase in density of tailings with depth. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 14 October 2014 Table 4-2 Summary of In-Situ Tailings Density from Laboratory Testing Tailings Typea In-Situ Dry Densityb (pcf) In-Situ Total Densityb (pcf) Sand 97 (93.5 – 98.3) 123 (120.8 – 124.9) Sand-Slime 88 (56.2 – 114.4) 114 (96.4 – 129.5) Slime 78 (61.0 – 83.6) 108 (98.4 – 122.7) Average 86 112 Notes: a. Sand tailings (0 – 30% fines); Sand-slime tailings (30 – 60% fines); Slime tailings (60 – 100% fines) (adjusted from Larson and Mitchell, 1986) b. Average laboratory values with ranges shown in parentheses. pcf = pounds per cubic foot Total density was estimated from CPT data using 1) the relationship provided in Robertson and Cabal (2012) for a correlation with friction ratio and cone resistance, and 2) the relationship provided in Lunne et al. (1997) for a correlation with the CPT soil behavior type index. The dry density was calculated using the total unit weight and the average measured specific gravity of 2.82 for locations where the tailings are expected to be saturated. Comparisons of laboratory measured dry density versus estimated dry density values from the CPT data using Robertson and Cabal (2012) and Lunne et al. (1997) are shown on Figure E.2-11 and Figure E.2-12, respectively. The results indicate that neither relationship provides a good correlation with measured data at the same depths. Laboratory measured dry density values were also plotted versus CPT measured values for cone resistance and friction ratio in Figure E.2-13 and Figure E.2-14, respectively. These figures indicate that there is not a direct relationship between CPT cone resistance or friction ratio with in-situ dry densities for this data. Since a reliable correlation between the CPT data and in-situ density was not developed, the average measured tailings densities listed in Table 4-3 should be used with materials classified according to Figure E.1-2. Table 4-3 Recommended Tailings Density Values for Analysis Tailings Type Dry Density (pcf) Total Density (pcf) Sand/Sand-Slime 90 116 Slime 78 108 pcf = pounds per cubic foot 4.4 Hydraulic Conductivity Hydraulic conductivity testing was performed for sand-slime and slime tailings samples collected from the direct push sampling. The testing results were presented in Table 3-2 and are summarized below in Table 4-4. The geometric mean vertical hydraulic conductivities of the sand-slime and slime tailings are similar at approximately 1 x 10-6 cm/s. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 15 October 2014 Table 4-4 Summary of Laboratory Measured Vertical Hydraulic Conductivity Tailings Type Vertical Hydraulic Conductivitya (cm/s) Sand-Slime 9.0E-07 (1.6E-07 – 3.3E-06) Slime 1.3E-06 (1.7E-07 – 9.8E-06) Note: Geometric mean with range of values shown in parentheses. cm/s = cubic meters per second The horizontal hydraulic conductivities of the sand-slime and slime tailings were estimated using CPT data and the relationship provided in Robertson and Cabal (2012), based on CPT soil behavior. The results are shown in Table 4-5 for the depths where vertical hydraulic conductivities were measured. The estimated geometric mean horizontal hydraulic conductivities for the sand-slime and slime tailings are similar, with values of 6.8 x 10-6 and 3.5 x 10-6 cm/s, respectively. The calculated anisotropy ratio (hydraulic conductivity to vertical hydraulic conductivity) of the sand-slime and slime tailings is on the order of 2 to 3, excluding the result of 68 for CPT-2W6-S(3). Table 4-5 Summary of Estimated Horizontal Hydraulic Conductivity from CPT Data Tailings Type Location and Depth Estimated Horizontal Hydraulic Conductivity (cm/s) Laboratory Measured Vertical Hydraulic Conductivity (cm/s) Calculated Hydraulic Conductivity Anisotropy Ratio (horizontal/vertical) Sand-Slime CPT-2W2 at 7.5 – 8’ 3.8E-06 1.4E-06 3 CPT-2W3 at 7 – 8.5’ 7.4E-06 3.3E-06 2 CPT-2W6-S(3) at 15 – 15.5’ 1.1E-05 1.6E-07 68 Geometric mean 6.8E-06 9.0E-07 8 Slime CPT-2W6-S(2) at 13 – 13.5 4.9E-07 1.7E-07 3 CPT-2W6-S(3) at 15 – 15.5’ 2.5E-05 9.8E-06 3 Geometric mean 3.5E-06 1.3E-06 3 cm/s = cubic meters per second The sand tailings samples did not have sufficient cohesion to be used for specimens for hydraulic conductivity testing. Hydraulic conductivity was estimated using 1) CPT data and the relationship shown in Robertson and Cabal (2012), and 2) measured grain-size analyses and the empirical relationships from Fair-Hatch and Harlman (McWhorter and Sunada, 1977). The results are shown in Table 4-6. Assuming a horizontal to vertical conductivity ratio of approximately 1, the results indicate an isotropic hydraulic conductivity of approximately 1 x 10-5 to 3 x 10-5 cm/s for the sand tailings. The permeability test results for the White Mesa sand, sand-slime, and slime tailings are consistent with other published uranium tailings test results (Keshian and Rager, 1986). Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 16 October 2014 Table 4-6 Estimation of Hydraulic Conductivity for Sand Tailings Samples Tailings Cell Sampling Location Sample Depth Interval (ft) % Passing No. 200 Sieve Estimated Hydraulic Conductivity using Fair-Hatch and Harlman relationships (cm/s) Estimated Horizontal Hydraulic Conductivity using CPT data and relationship from Robertson and Cabal (2012) (cm/s) Cell 2 CPT-2E1 18.5 - 19’ 29.2 1.5.E-05 1.8E-05 Cell 3 CPT-3-4N 6.5 - 7 13.0 4.9.E-05 2.6E-04 8.5 - 9 19.6 2.5.E-05 1.3E-05 11 – 11.5 11.2 4.8.E-05 2.2E-07 Geometric mean 3.1E-05 1.1E-05 cm/s = cubic meters per second 4.5 Consolidation Properties Results of laboratory consolidation testing on samples obtained from the direct push sampling were used to estimate consolidation parameters including the compression index (Cc) and the vertical coefficient of consolidation (cv). Cc provides an indication of the amount of compression that can be expected under a change in loading, with higher values of Cc indicating greater compression and larger settlements. The parameter cv provides an indication of the consolidation rate with vertical pore water pressure dissipation, with higher cv values indicating more rapid consolidation. Consolidation tests were performed on sand-slime and slime tailings samples. The sand tailings samples did not have sufficient cohesion to be used for consolidation testing. The consolidation testing results for the samples tested were presented in Table 3-2 and are summarized below in Table 4-7. The results for consolidation parameters are similar for sand-slime and slime tailings, with an average Cc value of approximately 0.3 and an average cv value of approximately 0.001 to 0.002 cm2/s. Table 4-7 Summary of Laboratory Measured Consolidation Parameters Tailings Type Cc cv (cm2/s) Sand- Slime 0.32 (0.11 – 0.66) 0.001 (0.0005 – 0.002) Slime 0.28 (0.27 – 0.28) 0.002 (0.0005 – 0.003) cm2/s = square cubic meters per second The measured Cc and cv values for the sand-slime and slime tailings samples are consistent with published test results for other uranium tailings samples (Keshian and Rager, 1986). Values of Cc from the consolidation testing were compared with Atterberg limits and in-situ density test results in Figure E.4-1 and Figure E.4-2, respectively. Figure E.4-1 indicates there is not a relationship between Atterberg limits and Cc values for the samples tested. Figure E.4- 2 indicates a relationship of increasing Cc values with decreasing in-situ dry densities with a value of Cc of 0.3 representative of the majority of the samples. Figure E.4-3 shows the consolidation test results for each sample tested and this graph also indicates a relationship of increasing Cc values with decreasing in-situ dry densities. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 17 October 2014 The results of CPT pore pressure dissipation tests can be used to estimate the horizontal coefficient of consolidation for sands using the leading theoretical solution by Teh and Houlsby (1991) with the rigidity index estimated based on plasticity index (PI) from relationship presented in Keaveny & Mitchell (1986). The horizontal coefficient of consolidation (ch) provides an indication as to the rate of consolidation when pore water is dissipated horizontally, with higher ch values indicating more rapid consolidation. The results are summarized in Table 4-8. Only locations where laboratory samples were collected and tested at the same depth were evaluated. The results indicate ch values ranging from 0.3 to 0.8 cm2/s. Table 4-8 Summary of Estimated Horizontal Coefficient of Consolidation from CPT Soundings Tailings Cell Sampling Location Tailings Type PPD Depth (ft) Estimated ch (cm2/s) Cell 2 CPT-2W2 Sand-Slime 13.94 0.62 Cell 3 CPT-3-4N Sand 13.12 0.51 CPT-3-6N Sand-Slime 8.86 0.34 Slime 18.54 0.84 cm2/s = square cubic meters per second Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 18 October 2014 5.0 SUMMARY The tailings investigation was conducted to address DRC’s request for site-specific tailings information. The results of this investigation will be used to update technical analyses to address DRC review comments on the Reclamation Plan Revision 5.0 and the revised ICTM Report. The tailings characteristic parameters presented in this document are based on the methods presented and our experience with similar materials. Any analyses conducted using these parameters will consider the conditions and assumptions under which the values were developed. The results of the tailings investigation indicate the tailings within Cells 2 and 3 are relatively uniform with minimal segregation of tailings within each cell. The tailings within Cells 2 and 3 are similar in particle size distribution and other geotechnical characteristics. Therefore, it is reasonable to assume the test results from the investigation are representative for both cells. A correlation between tailings classification and CPT results (i.e., cone resistance and friction ratio) was discussed in Section 4.1 and shown in Figure E.1-3 and Figure E.1-4 for Cell 2 and Cell 3, respectively. These figures classify the tailings as sand/sand-slime tailings or slime tailings based on CPT results. This criteria was developed based on calibration of laboratory data with CPT results. It is recommended that the materials identified in the CPT soundings be classified according to this criteria as sand/sand-slime tailings or slime tailings, and that the laboratory values representing these tailings classifications be used for future technical analyses. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 19 October 2014 6.0 REFERENCES Denison Mines (USA) Corp. (Denison), 2011. Reclamation Plan White Mesa Mill, Blanding, Utah, Version 5.0. September. Denison Mines (USA) Corp. (Dension) 2012a. Responses to Interrogatories – Round 1 for Reclamation Plan, Revision 5.0, March 2012. May 31. Denison Mines (USA) Corp. (Dension) 2012b. Responses to Interrogatories – Round 1 for the Revised Infiltration and Contaminant Transport Modeling Report, March 2010. May 31. Energy Fuels Resources (USA) Inc. (EFRI), 2012a. Responses to Interrogatories – Round 1 for Reclamation Plan, Revision 5.0, March 2012. August 15. Energy Fuels Resources (USA) Inc. (EFRI), 2012b. Responses to Interrogatories – Round 1 for the Revised Infiltration and Contaminant Transport Modeling Report, March 2010. September 10. Energy Fuels Resources (USA) Inc. (EFRI), 2013. Email from Jo Ann Tishler (EFRI) to John Hultquist (DRC) confirming comments from John Hultquist on September 12, 2013 that the responses to DRC comments on the Tailings Characterization Work Plan were satisfactory to DRC, that DRC had no further comments on the revised plan, and that MWH could proceed with the field investigation. September 12. Keaveny, J.M. and J.K. Mitchell, 1986. Strength of Fine-Grained Soils Using the Piezocone. Use of In Situ Tests in Geotechnical Engineering, GSP 6, American Society of Civil Engineers, Reston, VA, USA, pp. 668-685. Keshian B. and R.E. Rager. 1988. Geotechnical Properties of Hydraulically Placed Uranium Tailings. Hydraulic Fill Structures, ASCE Geotechnical Special Publication No. 21, pp.227- 254 Larson, N.B., and B. Mitchell, 1986. Cone Penetrometer Use on Uranium Mill Tailings. Use of In-sit Tests in Geotechnical Engineering . Samuel P. Clemence, Editor, Proceedings of a conference sponsored by the Geotechnical Engineering Division of the American Society of Civil Engineers, Geotechnical Special Publication No. 6. Lunne, T., P.K. Robertson, and J.J.M. Powell, 1997. Cone Penetration Testing in Geotechnical Practice. Blackie Academic, EF Spon/Routledge Publ., New York. McWhorter, D.B. and D.K. Sunada, 1977. Ground-Water Hydrology and Hydraulics. Water Resources Publications, Colorado. MWH Americas, Inc. (MWH), 2010. Denison Mines (USA) Corp. Revised Infiltration and Contaminant Transport Modeling Report, White Mesa Mill Site, Blanding, Utah. Report prepared for Denison Mines. March. MWH Americas, Inc. (MWH), 2013a. Energy Fuels Resources (USA) Inc. (EFRI) White Mesa Mill Tailings Characterization and Analysis Work Plan. Report prepared for EFRI. June. Tailings Data Analysis Report Energy Fuels Resources (USA) Inc. MWH Americas, Inc. 20 October 2014 MWH Americas, Inc. (MWH), 2013b. Energy Fuels Resources (USA) Inc. (EFRI) White Mesa Mill Tailings Characterization and Analysis Work Plan. Report prepared for EFRI. July. MWH Americas, Inc. (MWH), 2013c. DRC Request for Information for White Mesa Mill Tailings Characterization and Analysis Work Plan. Letter from MWH to EFRI. July 30. MWH Americas, Inc. (MWH), 2013d. Energy Fuels Resources (USA) Inc. (EFRI) White Mesa Mill Tailings Characterization and Analysis Work Plan. Report prepared for EFRI. October. Robertson, P.K., and K.L. Cabal, 2012. Guide to Cone Penetration Testing for Geotechnical Engineering. 5th Edition. November. Teh, C.I. and G.T. Houlsby, 1991. An Analytical Study of the Cone Penetration Test in Clay. Geotechniqure, 41 (1): 17-34. Utah Department of Environmental Quality, Division of Radiation Control (DRC), 2012a. Denison Mines (USA) Corp’s White Mesa Reclamation Plan, Rev. 5.0, Interrogatories – Round 1. March. Utah Department of Environmental Quality, Division of Radiation Control (DRC), 2012b. Denison Mines (USA) Corp’s Revised Infiltration and Contaminant Transport Modeling Report, Interrogatories – Round 1. March. Utah Department of Environmental Quality, Division of Radiation Control (DRC), 2013a. Radioactive Material License (RML) Number UT 1900479: Review of September 10, 2012 Energy Fuels Resources (USA), Inc. Responses to Round 1 Interrogatories on Revised Infiltration and Contaminant Transport Modeling (ICTM) Report, White Mesa Mill Site, Blanding, Utah, report dated March 2010. February 7. Utah Department of Environmental Quality, Division of Radiation Control (DRC), 2013b. Review of August 15, 2012 (and May 31, 2012) Energy Fuels Resources (USA), Inc. Responses to Round 1 Interrogatories on Revision 5 Reclamation Plan Review, White Mesa Mill, Blanding, Utah, report dated September 2011. February 13. Utah Department of Environmental Quality, Division of Radiation Control (DRC), 2013c. Review of Energy Fuels Resources (USA) Inc. White Mesa Mill Tailings Characterization and Analysis Work Plan, June 2013: DRC Request for Information. July 2. FIGURES REGIONAL LOCATION MAP FIGURE 1-1 1009740 LOC MAP WHITE MESA MILL TAILINGS CHARACTERIZATION OCT 2014 Energy Resources (USA) Inc.Fuels White Mesa Mill Site CELL 3 CELL 4B CELL 4A CELL 2 CELL 1 APPROXIMATE EXTENT OF CELL (TYP)CPT-2W2 CPT-2W5-C CPT-2W6-S CPT-2W6-S(2) (25.59) CPT-2W6-S(3) (25.10) CPT-2W7-C CPT-2E1 CPT-3-8S CPT-3-8N CPT-3-6N CPT-3-4N CPT-3-3S CPT-3-2C CPT-3-1S CPT-3-7S (SEE NOTE 1) (SEE NOTE 1 AND 2) (SEE NOTE 2) (SEE NOTE 2) CPT-2W3 CPT-2W4-C 2W1 2W2 (20.34) 2W3 (21.65) 2W3-S 2W4-N 2W4-C (26.57) 2W4-S 2W5-N 2W5-C (30.18) 2W5-S 2W6-N (29.20) 2W6-C 2W6-S 2W7-N 2W7-C (28.05) 2W7-S 2E1-2S 2E1-1S 2E1-N 3-1N 3-1C 3-1S (17.88) 3-2S 3-2C (20.34) 3-2N 3-3N 3-3C 3-3S (23.79) 3-7S 3-8S (15.26) 3-8C 3-7C 3-4N (21.16) 3-6N (18.54) 3-7N3-8N (15.26) 2E1 (28.05) 3-6C 3-6S (SEE NOTE 3) (SEE NOTE 3) APPROXIMATE LOCATION OF UNCOVERED AREA (OCTOBER 2013) CPT-3-7SA CPT-2W3A CPT-2W4-CA TAILINGS CPT SOUNDING AND SAMPLING LOCATIONS FIGURE 2-1 1009740 CPT A ENERGY FUELS - WHITE MESA BLANDING, UTAH OCT 2014 Energy Resources (USA) Inc.Fuels LEGEND: (24.4) NOTES: CELL 3 CELL 4B CELL 4A CELL 2 CELL 1 APPROXIMATE EXTENT OF CELL (TYP)CPT-2W2 CPT-2W5-C CPT-2W6-S CPT-2W6-S(2) (33.34) CPT-2W6-S(3) (34.20) CPT-2W7-C CPT-2E1 CPT-3-8S CPT-3-8N CPT-3-6N CPT-3-4N CPT-3-3S CPT-3-2C CPT-3-1S CPT-3-7S (SEE NOTE 1) (SEE NOTE 1 AND 2) (SEE NOTE 2) (SEE NOTE 2) CPT-2W3 CPT-2W4-C 2W1 (20.12)2W2 (21.53) 2W3 (22.98) 2W3-S (25.69) 2W4-N (25.89) 2W4-C (28.62) 2W4-S (29.13) 2W5-N (28.69) 2W5-C (31.57) 2W5-S (33.61) 2W6-N (27.18) 2W6-C (31.58) 2W6-S (32.38) 2W7-N (25.51) 2W7-C (29.01) 2W7-S (31.98)2E1-2S (29.65) 2E1-1S (29.84) 2E1-N (26.84) 3-1N (20.31) 3-1C (20.78) 3-1S (21.94) 3-2S (24.90) 3-2C (24.16) 3-2N (22.33) 3-3N (26.21) 3-3C (28.44) 3-3S (32.90) 3-7S (24.14) 3-8S (22.81) 3-8C (20.41) 3-7C (21.56) 3-4N (29.54) 3-6N (21.69) 3-7N (19.15) 3-8N (17.65) 2E1 (29.66) 3-6C (27.95) 3-6S (27.64) CPT-3-7SA CPT-2W3A CPT-2W4-CA THICKNESS CONTOURS OF INTERIM COVER AND TAILINGS FIGURE 2-2 1009740 IC A ENERGY FUELS - WHITE MESA BLANDING, UTAH OCT 2014 Energy Resources (USA) Inc.Fuels LEGEND: (24.4) NOTES: CELL 3 CELL 4B CELL 4A CELL 2 CELL 1 APPROXIMATE EXTENT OF CELL (TYP)CPT-2W2 CPT-2W5-C CPT-2W6-S CPT-2W6-S(2) 5603.9 CPT-2W6-S(3) 5603.2 CPT-2W7-C CPT-2E1 CPT-3-8S CPT-3-8N CPT-3-6N CPT-3-4N CPT-3-3S CPT-3-2C CPT-3-1S CPT-3-7S (SEE NOTE 1) (SEE NOTE 1 AND 2) (SEE NOTE 2) (SEE NOTE 2) CPT-2W3 CPT-2W4-C 2W1 2W2 5612.0 2W3 5611.4 2W3-S 2W4-N 2W4-C 5607.3 2W4-S 2W5-N 2W5-C 5605.9 2W5-S 2W6-N 2W6-C 2W6-S 5604.4 2W7-N 2W7-C 5610.4 2W7-S 2E1-2S 2E1-1S 2E1-N 3-1N 3-1C 3-1S 5603.9 3-2S 3-2C 5605.2 3-2N 3-3N 3-3C 3-3S 5605.8 3-7S 3-8S 5603.5 3-8C 3-7C 3-4N 5604.9 3-6N 5603.2 3-7N3-8N 5604.9 2E1 5608.8 5596.4 (SEE NOTE 3) APPROXIMATE LOCATION OF UNCOVERED AREA (OCTOBER 2013) 3-6C 3-6S (SEE NOTE 4) (SEE NOTE 4) CPT-3-7SA CPT-2W3A CPT-2W4-CA ESTIMATED ELEVATION OF TOP OF SATURATED TAILINGS, OCTOBER 2013 FIGURE 4-1 1009740 ST A ENERGY FUELS - WHITE MESA BLANDING, UTAH OCT 2014 Energy Resources (USA) Inc.Fuels LEGEND: 5600 NOTES: CELL 3 CELL 4B CELL 4A CELL 2 CELL 1 APPROXIMATE EXTENT OF CELL (TYP)CPT-2W2 CPT-2W5-C CPT-2W6-S CPT-2W6-S(2) (21.8) CPT-2W6-S(3) (22.2) CPT-2W7-C CPT-2E1 CPT-3-8S CPT-3-8N CPT-3-6N CPT-3-4N CPT-3-3S CPT-3-2C CPT-3-1S CPT-3-7S (SEE NOTE 1) (SEE NOTE 1 AND 2) (SEE NOTE 2) (SEE NOTE 2) CPT-2W3 CPT-2W4-C 2W1 2W2 (18.1) 2W3 (18.6) 2W3-S 2W4-N 2W4-C (18.9) 2W4-S 2W5-N 2W5-C (21.8) 2W5-S 2W6-N 2W6-C 2W6-S (21.2) 2W7-N 2W7-C (20.1) 2W7-S 2E1-2S 2E1-1S 2E1-N 3-1N 3-1C 3-1S (13.2) 3-2S 3-2C (18.5) 3-2N 3-3N 3-3C 3-3S (28.7) 3-7S 3-8S (17.6) 3-8C 3-7C 3-4N (26.1) 3-6N (17.7) 3-7N3-8N (14.6) 2E1 (18.3) (9.0) 3-6C 3-6S CPT-3-7SA CPT-2W3A CPT-2W4-CA THICKNESS OF SATURATED TAILINGS, OCTOBER 2013 FIGURE 4-2 1009740 ST THK A ENERGY FUELS - WHITE MESA BLANDING, UTAH OCT 2014 Energy Resources (USA) Inc.Fuels LEGEND: (18.5) NOTES: APPENDIX A CONE PENETRATION TESTING RESULTS Geotechnical, Environmental and Marine Site Investigation Services Salt Lake City, UT • West Berlin, NJ • Richmond, VA • Raleigh, NCVancouver, BC • Edmonton, AB • Fort McMurray, AB • Toronto, ON • Lima, Peru Cone Penetration Test Data White Mesa Mill TSF Near Blanding, Utah October 15 - 23, 2013 Prepared for: - November 12, 2013 - MWH Americas, Inc. Ft. Collins, Colorado CONE PENETRATION TEST DATA White Mesa Mill TSF Near Blanding, Utah October 15 through 23, 2013 Prepared for: MWH Americas, Inc. 3665 JFK Parkway Suite 206 Fort Collins, CO 80525 Prepared by: ConeTec, Inc. Salt Lake City, Utah November 12, 2013 ConeTec, Inc. Geotechnical and Environmental Site Investigation Contractors 3750 West 500 South, Salt Lake City, UT 84104 ● PO Box 22082, Salt Lake City, UT 84122 Tel: (801) 973-3801 ● Fax: (801) 973-3802 ● Web: www.conetec.com ● Email: saltlakecity@conetec.com Salt Lake City, UT ● West Berlin, NJ ● Richmond, VA ● Raleigh, NC Vancouver, BC ● Edmonton, AB ● Toronto, ON ● Fort McMurray, AB ● Lima, Peru November 12, 2013 Job No.: 13-52106 Ms. Melanie Davis Tel: (970) 377-9410 MWH Americas, Inc. Fax: (970) 377-9406 3665 JFK Parkway Email: melanie.m.davis@mwhglobal.com Suite 206 Fort Collins, CO 80525 Re: CPT Testing Services Report White Mesa Mill TSF Near Blanding, Utah Dear Melanie, Per your request, we have completed the CPT investigation for the above referenced project. Included with this report are the standard CPT plots, pore pressure dissipation plots, shear wave velocity calculations and seismic CPT plots in PDF format. Additionally, the CPT data, PPD data and CPT interpretation files are presented in Excel format. The attached summary sheet outlines the work completed at the site. All CPT testing was performed in accordance with ASTM D5778-12 and industry standard practices. A compression model electronic piezocone penetrometer, with a 15-cm2 tip and a 225-cm2 friction sleeve was used for all of the testing. The cone penetrometer is designed with an equal end area friction sleeve and a tip end area ratio of 0.80. At the beginning of the sounding, the cone was outfitted with a vacuum saturated 6-mm thick, porous plastic pore pressure element that is located immediately behind the tip in the u2 location. Additionally, the coordinates shown on the plots are for location reference only and generally have an accuracy of ±30 feet and are referenced to the WGS84 datum. Many correlations have been developed for design parameters based on CPT data. The interpretations are presented only as a guide for geotechnical use and should be carefully scrutinized for consideration in any geotechnical design. Assumptions have been made regarding soil unit weights, groundwater level and interpretational methods, which may or may not apply to this site. The calculated water table used in the interpretations is based on the results of the shallowest pore pressure dissipation test performed in each sounding. This calculation is based on the assumption that the soil is completely free draining, which may or Ms. Melanie Davis Job No.: 13-52106 MWH Americas, Inc. Page 2 of 2 November 12, 2013 Salt Lake City, UT ● West Berlin, NJ ● Richmond, VA ● Raleigh, NC Vancouver, BC ● Edmonton, AB ● Toronto, ON ● Fort McMurray, AB ● Lima, Peru may not be applicable to this site. Additionally, the following table summarizes the values assigned to the specific soil behavior type zones that are used in the interpretations. Zone SPT qt/N Unit Wt. (kN/m3) Unit Wt. (pcf) Drainage Condition Description 0 1.0 18.46 117.5 Neither Undefined 1 2.0 17.5 111.4 Undrained Sensitive Fines 2 1.0 12.5 79.6 Undrained Organic Soil 3 1.0 17.5 111.4 Undrained Clay 4 1.5 18.0 114.6 Undrained Silty Clay 5 2.0 18.0 114.6 Undrained Clayey Silt 6 2.5 18.0 114.6 Both Silt 7 3.0 18.5 117.8 Drained Sandy Silt 8 4.0 19.0 120.9 Drained Silty Sand/Sand 9 5.0 19.5 124.1 Drained Sand 10 6.0 20.0 127.3 Drained Gravelly Sand 11 1.0 20.5 130.5 Drained Stiff Fine Grained 12 2.0 19.0 120.9 Drained Cemented Sand We appreciate the opportunity of providing these services to you. If you have any questions regarding the enclosed material or if, we can be of additional assistance, please contact us. Sincerely, ConeTec, Inc. Reviewed By Pete Bowen Shawn Steiner Peter A. Bowen, E.I.T. Shawn D. Steiner, P.E. Staff Engineer Regional Manager Enclosures Client: MWH Americas, Inc. Job No.: 13-52106 Project: White Mesa Tailings Location: Blanding, Utah Sounding ID CPT Date CPT Filename CPT Depth (ft.) PPD Depth (ft.) PPD Duration (sec) Ueq (ft.) Calculated Water Table (ft.) Soil Sample Interval (ft.) Comments SCPT-2W2 16-Oct-2013 13-52106_SP2W2 20.34 13.94 3000 11.2 2.8 7.0 - 9.0 Seismic 11.5 - 13.5 16.5 - 19.0 7.0 - 9.0 SCPT-2W3 15-Oct-2013 13-52106_SP2W3 21.65 18.54 650 18.4 0.2 5.0 - 6.5 Seismic 21.65 900 24.1 7.0 - 8.5 9.0 - 10.8 13.0 - 13.5 16.0 - 18.0 20.0 - 22.0 8.0 - 10.0 6.0 - 7.0 7.5 - 8.5 9.5 - 10.5 13.0 - 14.0 16.0 - 17.0 CPT-2W3A 17-Oct-2013 13-52106_CP2W3A 4.43 3.12 1500 0.0 3.2 3.94 800 0.0 4.43 1500 4.2 CPT Testing Summary Page 1 of 3 Sounding ID CPT Date CPT Filename CPT Depth (ft.) PPD Depth (ft.) PPD Duration (sec) Ueq (ft.) Calculated Water Table (ft.) Soil Sample Interval (ft.)Comments SCPT-2W4-C 15-Oct-2013 13-52106_SP2W4-C 26.57 17.39 900 12.1 5.3 4.0 - 6.0 Seismic 7.0 - 9.0 10.0 - 12.0 12.5 - 14.5 15.0 - 17.0 4.0 - 6.0 6.0 - 8.0 8.5 - 12.5 5.0 - 6.0 8.0 - 9.0 11.0 - 12.0 13.5 - 14.5 16.0 - 17.0 CPT-2W4-CA 17-Oct-2013 13-52106_CP2W4-CA 9.35 6.07 300 0.6 5.5 9.35 500 5.2 SCPT-2W5-C 15-Oct-2013 13-52106_SP2W5-C 30.18 12.63 600 11.0 1.7 Seismic SCPT-2W6-S 15-Oct-2013 13-52106_SP2W6-S 29.20 15.09 3005 4.5 10.6 Seismic 29.20 300 16.9 CPT-2W6-S (2)22-Oct-2013 13-52106_CP2W6-S-2 25.59 19.85 600 7.8 12.0 10.0 - 12.0 12.0 - 14.0 14.0 - 16.5 CPT-2W6-S (3)22-Oct-2013 13-52106_CP2W6-S-3 25.10 21.65 800 12.9 8.8 6.0 - 8.5 8.5 - 11.0 14.0 - 16.0 16.0 - 18.0 SCPT-2W7-C 15-Oct-2013 13-52106_SP2W7-C 28.05 15.09 600 8.5 6.5 Seismic Page 2 of 3 Sounding ID CPT Date CPT Filename CPT Depth (ft.) PPD Depth (ft.) PPD Duration (sec) Ueq (ft.) Calculated Water Table (ft.) Soil Sample Interval (ft.)Comments SCPT-2E1 15-Oct-2013 13-52106_SP2E1 28.05 20.51 600 11.3 9.2 5.5 - 7.5 Seismic 7.5 - 9.5 12.0 - 14.0 17.0 - 19.0 23.0 - 25.0 26.0 - 28.0 5.5 - 6.5 12.0 - 13.0 17.0 - 18.0 23.0 - 24.0 26.0 - 27.0 SCPT-3-1S 16-Oct-2013 13-52106_SP3-1S 17.88 12.80 800 8.2 4.6 Seismic SCPT-3-2C 16-Oct-2013 13-52106_SP3-2C 20.34 12.47 400 6.9 5.5 Seismic SCPT-3-3S 16-Oct-2013 13-52106_SP3-3S 23.79 18.86 500 14.9 4.0 Seismic SCPT-3-4N 16-Oct-2013 13-52106_SP3-4N 21.16 13.12 1000 13.8 ~0.0 5.0 - 7.0 Seismic 21.16 200 18.5 7.0 - 9.0 9.0 - 11.5 12.5 - 14.5 16.0 - 19.0 SCPT-3-6N 16-Oct-2013 13-52106_SP3-6N 18.54 8.86 600 5.6 3.2 5.0 - 7.5 Seismic 18.54 300 15.3 9.0 - 11.0 13.0 - 15.5 16.0 - 18.5 CPT-3-7S 16-Oct-2013 13-52106_CP3-7S 8.04 Refusal CPT-3-7SA 16-Oct-2013 13-52106_CP3-7SA 10.01 9.02 1015 9.4 ~0.0 Refusal SCPT-3-8N 16-Oct-2013 13-52106_SP3-8N 15.26 10.01 800 6.5 Seismic SCPT-3-8S 16-Oct-2013 13-52106_SP3-8S 15.26 3.94 3610 4.6 ~0.0 Seismic 6.07 400 0.8 15.26 900 10.2 NO PPD PERFORMED Page 3 of 3 CPT Plots 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 08:36 Site: CELL 2 Sounding: SCPT-2W2 Cone: 249:T1500F15U500 Max Depth: 6.200 m / 20.34 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W2.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533317 Long: -109.512367 SiltSandSilty Sand/SandSiltSilty Sand/Sand Sandy Silt Silt Silty Clay Clayey Silt Silty Clay Sensitive Fines Clayey Silt SiltClayey SiltSilty ClayClayey SiltSilt Clayey Silt SiltClayey Silt Ueq=11.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 16:07 Site: CELL 2 Sounding: SCPT-2W3 Cone: 249:T1500F15U500 Max Depth: 6.600 m / 21.65 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W3.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533617 Long: -109.511300 Sandy Silt Sand Silty Sand/Sand Sandy Silt SiltClayey SiltSiltSensitive Fines Silt Sensitive Fines Clayey Silt Sandy Silt Silt Silty Clay Clayey Silt Silt Clayey Silt Silty Clay Clayey SiltSiltClayey Silt Silt Clayey Silt Ueq=18.4' Ueq=24.1' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:17:13 08:56 Site: CELL 2 Sounding: CPT-2W3A Cone: 249:T1500F15U500 Max Depth: 1.350 m / 4.43 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP2W3A.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533617 Long: -109.511283 SiltSand Gravelly Sand SandSilty Sand/Sand Silt Ueq=0.0' Ueq=0.0' Ueq=4.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 15:12 Site: CELL 2 Sounding: SCPT-2W4-C Cone: 249:T1500F15U500 Max Depth: 8.100 m / 26.57 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W4-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533100 Long: -109.509967 Silty Sand/Sand Sandy Silt Silt Sandy SiltSiltClayey Silt Silt Clayey Silt Silt Clayey SiltSilt Clayey Silt Silty ClayClayey Silt Silt Clayey SiltSilt Clayey Silt Silt Clayey Silt Ueq=12.1' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:17:13 08:13 Site: CELL 2 Sounding: CPT-2W4-CA Cone: 249:T1500F15U500 Max Depth: 2.850 m / 9.35 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP2W4-CA.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533100 Long: -109.509950 Sandy Silt Silty Sand/Sand Sand Sandy Silt Silt Ueq=0.6' Ueq=5.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 14:20 Site: CELL 2 Sounding: SCPT-2W5-C Cone: 249:T1500F15U500 Max Depth: 9.200 m / 30.18 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W5-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532917 Long: -109.508467 SiltSandy SiltSilty Sand/SandSandSilty Sand/Sand Sandy Silt Silty Sand/Sand Sandy Silt Silt Sandy Silt Silt Sandy SiltSiltSandy Silt Silt Clayey SiltSiltClayey Silt Silt Sandy Silt SiltClayey SiltSilt Clayey Silt Silt Clayey Silt Sandy Silt Silt Sandy Silt Silty Sand/Sand Ueq=11.0' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 12:45 Site: CELL 2 Sounding: SCPT-2W6-S Cone: 249:T1500F15U500 Max Depth: 8.900 m / 29.20 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W6-S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532183 Long: -109.507033 Sandy SiltSilty Sand/SandSand Silty Sand/Sand Cemented Sand Sandy Silt Silt Clayey SiltSilty Sand/Sand Silt Sandy Silt Silt Clayey Silt Silt Silty Clay Clayey Silt Silty Clay Clay Clayey SiltSilt Clayey Silt Silty ClayClayey Silt Silt Clayey Silt Silt Sandy Silt SiltSandy Silt Silt Sandy Silt Ueq=4.5' Ueq=16.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:22:13 14:58 Site: CELL 2 Sounding: CPT-2W6-S (2) Cone: 249:T1500F15U500 Max Depth: 7.800 m / 25.59 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP2W6-S-2.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532133 Long: -109.507417 SiltSandy SiltSilty Sand/SandSand Silty Sand/Sand Sandy Silt Sand Silty Sand/Sand Sandy Silt Clayey Silt Clay Silt Silty Sand/SandSandy Silt Silt Clayey Silt Sandy Silt Clayey Silt Silty Clay Clayey Silt Sensitive Fines Clayey Silt Silty Clay SiltClayey SiltClayClayey Silt Sandy Silt SiltSandy SiltClayey Silt Silty Clay Clayey Silt Ueq=7.8' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:22:13 15:51 Site: CELL 2 Sounding: CPT-2W6-S (3) Cone: 249:T1500F15U500 Max Depth: 7.650 m / 25.10 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP2W6-S-3.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532050 Long: -109.507700 Sandy SiltSilty Sand/Sand Sand Silty Sand/Sand Sandy Silt Sand Silty Sand/Sand Sandy Silt Clayey Silt Sandy Silt ClayClayey SiltClay Silt Clay Clayey Silt Silt Clayey Silt Clay Clayey SiltSiltClayey Silt Sandy Silt Clayey Silt Silty ClayClayey Silt Ueq=12.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 11:44 Site: CELL 2 Sounding: SCPT-2W7-C Cone: 249:T1500F15U500 Max Depth: 8.550 m / 28.05 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W7-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532533 Long: -109.505300 Silty Sand/Sand Sandy SiltSiltSandy Silt Silt Clayey Silt Silt Sensitive Fines Silt Sandy Silt Silt Sensitive FinesClayey Silt Silt Clayey Silt SiltClayey SiltSiltSilty Clay Silt Silty Clay Clayey Silt Silt Clayey Silt Silt Sandy Silt Silt Ueq=8.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 10:25 Site: CELL 2 Sounding: SCPT-2E1 Cone: 249:T1500F15U500 Max Depth: 8.550 m / 28.05 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2E1.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532800 Long: -109.503700 Sandy SiltSilty Sand/SandSand Silty Sand/Sand SiltClayey SiltSilty Sand/SandSandy SiltSilt Sandy Silt Silt Sandy Silt Silt Clayey Silt Sensitive Fines Clayey Silt Silt Clayey Silt Silt Sandy Silt Silt Clayey Silt Silt Clayey Silt Silt Clayey Silt Silt Clayey SiltSilt Sandy Silt Silt Clayey Silt Silt Ueq=11.3' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 17:31 Site: CELL 3 Sounding: SCPT-3-1S Cone: 249:T1500F15U500 Max Depth: 5.450 m / 17.88 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-1S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529050 Long: -109.504883 UndefinedSensitive FinesSandy SiltSilty Sand/Sand Clayey Silt Clay Sandy SiltSand Silty Sand/Sand Sandy Silt SiltClayey Silt Silt Sandy Silt SiltSandy Silt Silt Rock Removed Rock Removed Rock Removed Rock Removed Ueq=8.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 16:51 Site: CELL 3 Sounding: SCPT-3-2C Cone: 249:T1500F15U500 Max Depth: 6.200 m / 20.34 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-2C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529783 Long: -109.505833 Silty Sand/Sand Sand Sandy Silt Silty Clay Silt Clayey SiltSensitive Fines Silt Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Clayey SiltSiltSilty ClayClayey Silt Sandy Silt Silt Clayey SiltSilt Clayey Silt Ueq=6.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 16:08 Site: CELL 3 Sounding: SCPT-3-3S Cone: 249:T1500F15U500 Max Depth: 7.250 m / 23.79 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-3S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529600 Long: -109.508067 Sandy Silt Silty Sand/Sand Sandy Silt Silty Sand/Sand Silt Silty Sand/Sand Sandy SiltSilt Clayey Silt Silt Sensitive Fines Clayey Silt Silt Sensitive Fines Silt Sensitive FinesSilty ClaySensitive FinesClayey SiltSilty ClayClayey SiltSiltClayey SiltSiltClayey Silt Silt Sandy Silt Silt Sandy Silt Ueq=14.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 15:13 Site: CELL 3 Sounding: SCPT-3-4N Cone: 249:T1500F15U500 Max Depth: 6.450 m / 21.16 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-4N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.531333 Long: -109.508800 Silty Sand/Sand Sandy Silt Silt Clayey Silt Silt Sensitive Fines Clay Sandy Silt Sand Clayey Silt SiltSilty Clay Sensitive Fines Silt Sandy Silt Ueq=13.8' Ueq=18.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 14:24 Site: CELL 3 Sounding: SCPT-3-6N Cone: 249:T1500F15U500 Max Depth: 5.650 m / 18.54 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-6N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.531933 Long: -109.511650 Sandy SiltSilty Sand/SandSand Silty Sand/Sand Sandy Silt Clay Silt Silty ClaySiltSandy SiltSiltClayey Silt Sensitive Fines Silt Clay Sensitive FinesSiltSilty Clay Sensitive Fines Clayey Silt Sensitive Fines Ueq=5.6' U50=~54.0' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 10:57 Site: CELL 3 Sounding: CPT-3-7S Cone: 249:T1500F15U500 Max Depth: 2.450 m / 8.04 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP3-7S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.530600 Long: -109.514433 SiltSilty Sand/Sand Sandy Silt SiltSandy SiltSilty ClaySiltClayey SiltSilty ClaySandy SiltClayey SiltSandy SiltSilty ClayClay Refusal Refusal Refusal Refusal Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 11:23 Site: CELL 3 Sounding: CPT-3-7SA Cone: 249:T1500F15U500 Max Depth: 3.050 m / 10.01 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_CP3-7SA.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.530600 Long: -109.514467 Sandy Silt Silty Sand/Sand Sandy Silt Silty ClayClayClayey Silt Silt Silty ClaySandy SiltSiltClayey Silt Silty Clay Clay Cemented Sand Refusal Refusal Refusal Refusal Ueq=9.4' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 10:10 Site: CELL 3 Sounding: SCPT-3-8N Cone: 249:T1500F15U500 Max Depth: 4.650 m / 15.26 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-8N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532400 Long: -109.513783 Sandy Silt Silty Sand/Sand Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Clayey Silt Silt Clayey Silt Silt Ueq=6.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0.0 2.5 5.0 7.5 10.0 Rf (%) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 12:23 Site: CELL 3 Sounding: SCPT-3-8S Cone: 249:T1500F15U500 Max Depth: 4.650 m / 15.26 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-8S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.530767 Long: -109.515350 Silty Sand/Sand Sand Silty Sand/SandSandy SiltSilty Sand/SandSandSilty Sand/Sand Sandy Silt Silt Silty Sand/Sand Sandy Silt Silt Clayey Silt Ueq=~4.6' Ueq=0.8' Ueq=10.2' Equilibrium Pore Pressure from Dissipation PPD Plots 0 500 1000 1500 2000 2500 3000 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 08:36:42 Site:CELL 2 Sounding:SCPT-2W2 Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W2.PPD Depth:4.250 m / 13.943 ft Duration:3000.0 s U Min:11.2 ft U Max:35.0 ft WT: 0.843 m / 2.766 ft Ueq:11.2 ft 0 200 400 600 800 0.0 20.0 40.0 60.0 80.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 16:07:46 Site:CELL 2 Sounding:SCPT-2W3 Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W3.PPD Depth:5.650 m / 18.537 ft Duration:650.0 s U Min:18.3 ft U Max:54.8 ft WT: 0.047 m / 0.154 ft Ueq:18.4 ft 0 300 600 900 0 25 50 75 100 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 16:07:46 Site:CELL 2 Sounding:SCPT-2W3 Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W3.PPD Depth:6.600 m / 21.653 ft Duration:900.0 s U Min:23.9 ft U Max:98.4 ft WT: -0.740 m / -2.428 ft Ueq:24.1 ft 0 500 1000 1500 0.0 5.0 10.0 15.0 20.0 0.0 -5.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:17-Oct-2013 08:56:13 Site:CELL 2 Sounding:CPT-2W3A Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W3A.PPD Depth:0.950 m / 3.117 ft Duration:1500.0 s U Min:-1.9 ft U Max:0.2 ft WT: 0.961 m / 3.153 ft Ueq:-0.0 ft 0 200 400 600 800 0.0 2.0 4.0 6.0 0.0 -2.0 -4.0 -6.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:17-Oct-2013 08:56:13 Site:CELL 2 Sounding:CPT-2W3A Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W3A.PPD Depth:1.200 m / 3.937 ft Duration:800.0 s U Min:-0.5 ft U Max:-0.0 ft WT: 1.200 m / 3.937 ft Ueq:0.0 ft 0 500 1000 1500 0.0 5.0 10.0 15.0 20.0 0.0 -5.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:17-Oct-2013 08:56:13 Site:CELL 2 Sounding:CPT-2W3A Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W3A.PPD Depth:1.350 m / 4.429 ft Duration:1500.0 s U Min:3.9 ft U Max:11.2 ft WT: 0.073 m / 0.239 ft Ueq:4.2 ft 0 300 600 900 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 15:12:41 Site:CELL 2 Sounding:SCPT-2W4-C Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W4-C.PPD Depth:5.300 m / 17.388 ft Duration:900.0 s U Min:12.0 ft U Max:37.4 ft WT: 1.602 m / 5.256 ft Ueq:12.1 ft 0 50 100 150 200 250 300 0.0 5.0 10.0 0.0 -5.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:17-Oct-2013 08:13:46 Site:CELL 2 Sounding:CPT-2W4-CA Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W4-CA.PPD Depth:1.850 m / 6.069 ft Duration:300.0 s U Min:0.0 ft U Max:0.8 ft WT: 1.676 m / 5.499 ft Ueq:0.6 ft 0 100 200 300 400 500 0.0 5.0 10.0 15.0 20.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:17-Oct-2013 08:13:46 Site:CELL 2 Sounding:CPT-2W4-CA Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W4-CA.PPD Depth:2.850 m / 9.350 ft Duration:500.0 s U Min:5.1 ft U Max:19.3 ft WT: 1.259 m / 4.131 ft Ueq:5.2 ft 0 100 200 300 400 500 600 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 14:20:41 Site:CELL 2 Sounding:SCPT-2W5-C Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W5-C.PPD Depth:3.850 m / 12.631 ft Duration:600.0 s U Min:10.9 ft U Max:25.0 ft WT: 0.505 m / 1.657 ft Ueq:11.0 ft 0 500 1000 1500 2000 2500 3000 0.0 2.0 4.0 6.0 8.0 10.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 12:45:46 Site:CELL 2 Sounding:SCPT-2W6-S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W6-S.PPD Depth:4.600 m / 15.092 ft Duration:3005.0 s U Min:4.3 ft U Max:9.3 ft WT: 3.222 m / 10.571 ft Ueq:4.5 ft 0 50 100 150 200 250 300 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 12:45:46 Site:CELL 2 Sounding:SCPT-2W6-S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W6-S.PPD Depth:8.900 m / 29.199 ft Duration:300.0 s U Min:16.7 ft U Max:19.2 ft WT: 3.740 m / 12.269 ft Ueq:16.9 ft 0 100 200 300 400 500 600 0.0 5.0 10.0 15.0 20.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:22-Oct-2013 14:58:17 Site:CELL 2 Sounding:CPT-2W6-S (2) Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W6-S-2.PPD Depth:6.050 m / 19.849 ft Duration:600.0 s U Min:7.6 ft U Max:10.2 ft WT: 3.663 m / 12.018 ft Ueq:7.8 ft 0 200 400 600 800 0.0 10.0 20.0 30.0 40.0 50.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:22-Oct-2013 15:51:39 Site:CELL 2 Sounding:CPT-2W6-S (3) Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP2W6-S-3.PPD Depth:6.600 m / 21.653 ft Duration:800.0 s U Min:12.4 ft U Max:45.5 ft WT: 2.678 m / 8.786 ft Ueq:12.9 ft 0 100 200 300 400 500 600 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 11:44:26 Site:CELL 2 Sounding:SCPT-2W7-C Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2W7-C.PPD Depth:4.600 m / 15.092 ft Duration:600.0 s U Min:8.6 ft U Max:24.0 ft WT: 1.995 m / 6.545 ft Ueq:8.5 ft 0 100 200 300 400 500 600 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:15-Oct-2013 10:25:04 Site:CELL 2 Sounding:SCPT-2E1 Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP2E1.PPD Depth:6.250 m / 20.505 ft Duration:600.0 s U Min:11.3 ft U Max:20.6 ft WT: 2.804 m / 9.199 ft Ueq:11.3 ft 0 200 400 600 800 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 17:31:20 Site:CELL 3 Sounding:SCPT-3-1S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-1S.PPD Depth:3.900 m / 12.795 ft Duration:800.0 s U Min:8.1 ft U Max:25.0 ft WT: 1.412 m / 4.632 ft Ueq:8.2 ft 0 100 200 300 400 0.0 2.0 4.0 6.0 8.0 10.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 16:51:44 Site:CELL 3 Sounding:SCPT-3-2C Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-2C.PPD Depth:3.800 m / 12.467 ft Duration:400.0 s U Min:6.8 ft U Max:9.3 ft WT: 1.682 m / 5.518 ft Ueq:6.9 ft 0 100 200 300 400 500 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 16:08:29 Site:CELL 3 Sounding:SCPT-3-3S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-3S.PPD Depth:5.750 m / 18.865 ft Duration:500.0 s U Min:14.8 ft U Max:22.1 ft WT: 1.212 m / 3.976 ft Ueq:14.9 ft 0 200 400 600 800 1000 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 15:13:48 Site:CELL 3 Sounding:SCPT-3-4N Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-4N.PPD Depth:4.000 m / 13.123 ft Duration:1000.0 s U Min:13.5 ft U Max:32.1 ft WT: -0.191 m / -0.627 ft Ueq:13.7 ft 0 50 100 150 200 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 15:13:48 Site:CELL 3 Sounding:SCPT-3-4N Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-4N.PPD Depth:6.450 m / 21.161 ft Duration:200.0 s U Min:18.4 ft U Max:19.4 ft WT: 0.825 m / 2.707 ft Ueq:18.5 ft 0 100 200 300 400 500 600 0.0 5.0 10.0 15.0 20.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 14:24:03 Site:CELL 3 Sounding:SCPT-3-6N Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-6N.PPD Depth:2.700 m / 8.858 ft Duration:600.0 s U Min:5.4 ft U Max:11.4 ft WT: 0.986 m / 3.235 ft Ueq:5.6 ft 0 100 200 300 400 500 600 0 25 50 75 100 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 14:24:03 Site:CELL 3 Sounding:SCPT-3-6N Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-6N.PPD Depth:5.650 m / 18.537 ft Duration:300.0 s U Min:34.4 ft U Max:93.8 ft WT: 0.975 m / 3.199 ft Ueq:15.3 ft U(50):54.59 ft T(50):46.5 s 0 200 400 600 800 1000 0.0 5.0 10.0 15.0 0.0 -5.0 -10.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 11:23:47 Site:CELL 3 Sounding:CPT-3-7SA Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_CP3-7SA.PPD Depth:2.750 m / 9.022 ft Duration:1015.0 s U Min:-5.2 ft U Max:15.2 ft WT: -0.113 m / -0.371 ft Ueq:9.4 ft 0 200 400 600 800 0.0 5.0 10.0 15.0 20.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 10:10:46 Site:CELL 3 Sounding:SCPT-3-8N Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-8N.PPD Depth:3.050 m / 10.006 ft Duration:800.0 s U Min:6.4 ft U Max:14.7 ft WT: 1.055 m / 3.461 ft Ueq:6.5 ft 0 1000 2000 3000 4000 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 12:23:53 Site:CELL 3 Sounding:SCPT-3-8S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-8S.PPD Depth:1.200 m / 3.937 ft Duration:3610.0 s U Min:4.5 ft U Max:18.4 ft WT: -0.190 m / -0.623 ft Ueq:4.6 ft 0 100 200 300 400 0.0 2.0 4.0 6.0 8.0 10.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 12:23:53 Site:CELL 3 Sounding:SCPT-3-8S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-8S.PPD Depth:1.850 m / 6.069 ft Duration:400.0 s U Min:0.6 ft U Max:7.8 ft WT: 1.615 m / 5.298 ft Ueq:0.8 ft 0 300 600 900 0.0 10.0 20.0 30.0 40.0 Time (s) Po r e P r e s s u r e ( f t ) MWH Americas Job No:13-52106 Date:16-Oct-2013 12:23:53 Site:CELL 3 Sounding:SCPT-3-8S Cone:249 Cone Area:15 sq cm Trace Summary: Filename:13-52106_SP3-8S.PPD Depth:4.650 m / 15.256 ft Duration:900.0 s U Min:9.9 ft U Max:39.7 ft WT: 1.535 m / 5.036 ft Ueq:10.2 ft Shear Wave Velocity Calculations (Vs Calcs) Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W2 Location Cell 2 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.67 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.25 4.59 4.89 10.01 9.35 9.50 4.61 11.82 119 2.12 390 7.0 15.09 14.44 14.53 5.03 11.97 128 3.62 421 11.9 20.34 19.68 19.76 5.22 10.17 157 5.20 514 17.1 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W3 Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 1.83 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.79 10.01 9.35 9.53 4.73 13.41 108 2.10 353 6.9 15.09 14.44 14.55 5.02 10.89 141 3.62 461 11.9 21.65 21.00 21.08 6.53 13.22 150 5.40 494 17.7 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W4-C Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 1.83 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.79 10.01 9.35 9.53 4.73 10.25 141 2.10 462 6.9 15.09 14.44 14.55 5.02 12.46 123 3.62 403 11.9 20.01 19.36 19.44 4.89 10.97 136 5.15 446 16.9 26.57 25.92 25.98 6.54 10.67 187 6.90 613 22.6 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W5-C Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 2.00 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.86 10.01 9.35 9.56 4.70 8.32 172 2.10 565 6.9 15.09 14.44 14.57 5.01 10.26 149 3.62 489 11.9 20.01 19.36 19.46 4.89 8.97 166 5.15 545 16.9 25.10 24.44 24.52 5.06 9.46 163 6.67 535 21.9 30.18 29.53 29.59 5.07 6.64 233 8.22 764 27.0 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W6-S Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 1.58 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.70 10.01 9.35 9.48 4.78 6.75 216 2.10 708 6.9 15.09 14.44 14.52 5.04 12.41 124 3.62 406 11.9 20.01 19.36 19.42 4.90 10.70 140 5.15 458 16.9 25.10 24.44 24.49 5.07 10.47 148 6.67 485 21.9 29.20 28.54 28.59 4.09 8.50 147 8.07 481 26.5 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2W7-C Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 1.75 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.76 10.01 9.35 9.51 4.75 9.41 154 2.10 505 6.9 15.09 14.44 14.54 5.03 9.32 164 3.62 540 11.9 20.01 19.36 19.44 4.89 8.96 166 5.15 546 16.9 25.10 24.44 24.50 5.07 9.40 164 6.67 539 21.9 28.05 27.39 27.45 2.95 5.43 165 7.90 542 25.9 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-2E1 Location Cell 2 Date: 10/15/13 Geophone Offset: 0.66 (ft) Source Offset: 2.17 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.93 10.01 9.35 9.60 4.67 9.67 147 2.10 483 6.9 15.09 14.44 14.60 5.00 9.97 153 3.62 501 11.9 20.01 19.36 19.48 4.88 9.74 153 5.15 501 16.9 25.10 24.44 24.54 5.06 9.82 157 6.67 516 21.9 28.05 27.39 27.48 2.94 5.01 179 7.90 587 25.9 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-1S Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.92 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.83 10.01 9.35 9.54 4.72 10.19 141 2.10 463 6.9 15.09 14.44 14.56 5.02 9.75 157 3.62 515 11.9 17.88 17.22 17.33 2.77 5.78 146 4.82 479 15.8 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-2C Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.67 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.73 10.01 9.35 9.50 4.77 9.72 149 2.10 490 6.9 15.09 14.44 14.53 5.03 12.68 121 3.62 397 11.9 20.34 19.68 19.76 5.22 10.47 152 5.20 499 17.1 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-3S Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 2.00 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.86 10.01 9.35 9.56 4.70 9.92 144 2.10 474 6.9 15.09 14.44 14.57 5.01 14.19 108 3.62 353 11.9 21.00 20.34 20.44 5.87 14.41 124 5.30 407 17.4 23.79 23.13 23.22 2.78 3.50 242 6.62 793 21.7 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-4N Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.92 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.83 10.01 9.35 9.54 4.72 16.65 86 2.10 283 6.9 15.09 14.44 14.56 5.02 10.02 153 3.62 501 11.9 20.01 19.36 19.45 4.89 12.84 116 5.15 381 16.9 21.16 20.50 20.59 1.14 3.74 93 6.07 306 19.9 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-6N Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 2.00 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.86 10.01 9.35 9.56 4.70 12.45 115 2.10 378 6.9 15.09 14.44 14.57 5.01 14.16 108 3.62 354 11.9 18.54 17.88 17.99 3.42 7.07 147 4.92 483 16.2 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-8N Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.92 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.83 10.01 9.35 9.54 4.72 8.37 172 2.10 563 6.9 15.26 14.60 14.72 5.18 10.53 150 3.65 492 12.0 Shear Wave Velocity Calculations Job No.: 13-52106 Client: MWH CPT No.: SCPT-3-8S Location Cell 3 Date: 10/16/13 Geophone Offset: 0.66 (ft) Source Offset: 1.75 (ft) Test Geophone Ray Incremental Time Interval Interval Interval Interval Depth Depth Path Distance Interval Velocity Depth Velocity Depth (ft)(ft)(ft)(ft)(ms)(m/s)(m)(ft/s)(ft) 5.08 4.43 4.76 10.01 9.35 9.51 4.75 8.71 166 2.10 545 6.9 15.26 14.60 14.70 5.19 11.19 141 3.65 464 12.0 Shear Wave Velocity Calculations Seismic CPT Plots (SCPT Plots) 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 08:36 Site: CELL 2 Sounding: SCPT-2W2 Cone: 249:T1500F15U500 Max Depth: 6.200 m / 20.34 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W2.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533317 Long: -109.512367 SiltSandSilty Sand/SandSiltSilty Sand/Sand Sandy Silt Silt Silty Clay Clayey Silt Silty Clay Sensitive Fines Clayey Silt SiltClayey SiltSilty ClayClayey SiltSilt Clayey Silt SiltClayey Silt Ueq=11.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 16:07 Site: CELL 2 Sounding: SCPT-2W3 Cone: 249:T1500F15U500 Max Depth: 6.600 m / 21.65 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W3.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533617 Long: -109.511300 Sandy Silt Sand Silty Sand/Sand Sandy Silt SiltClayey SiltSiltSensitive Fines Silt Sensitive Fines Clayey Silt Sandy Silt Silt Silty Clay Clayey Silt Silt Clayey Silt Silty Clay Clayey SiltSiltClayey Silt Silt Clayey Silt Ueq=18.4' Ueq=24.1' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 15:12 Site: CELL 2 Sounding: SCPT-2W4-C Cone: 249:T1500F15U500 Max Depth: 8.100 m / 26.57 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W4-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.533100 Long: -109.509967 Silty Sand/Sand Sandy Silt Silt Sandy SiltSiltClayey Silt Silt Clayey Silt Silt Clayey SiltSilt Clayey Silt Silty ClayClayey Silt Silt Clayey SiltSilt Clayey Silt Silt Clayey Silt Ueq=12.1' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 14:20 Site: CELL 2 Sounding: SCPT-2W5-C Cone: 249:T1500F15U500 Max Depth: 9.200 m / 30.18 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W5-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532917 Long: -109.508467 SiltSandy SiltSilty Sand/SandSandSilty Sand/Sand Sandy Silt Silty Sand/Sand Sandy Silt Silt Sandy Silt Silt Sandy SiltSiltSandy Silt Silt Clayey SiltSiltClayey Silt Silt Sandy Silt SiltClayey SiltSilt Clayey Silt Silt Clayey Silt Sandy Silt Silt Sandy Silt Silty Sand/Sand Ueq=11.0' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 12:45 Site: CELL 2 Sounding: SCPT-2W6-S Cone: 249:T1500F15U500 Max Depth: 8.900 m / 29.20 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W6-S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532183 Long: -109.507033 Sandy SiltSilty Sand/SandSand Silty Sand/Sand Cemented Sand Sandy Silt Silt Clayey SiltSilty Sand/Sand Silt Sandy Silt Silt Clayey Silt Silt Silty Clay Clayey Silt Silty Clay Clay Clayey SiltSilt Clayey Silt Silty ClayClayey Silt Silt Clayey Silt Silt Sandy Silt SiltSandy Silt Silt Sandy Silt Ueq=4.5' Ueq=16.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 11:44 Site: CELL 2 Sounding: SCPT-2W7-C Cone: 249:T1500F15U500 Max Depth: 8.550 m / 28.05 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2W7-C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532533 Long: -109.505300 Silty Sand/Sand Sandy SiltSiltSandy Silt Silt Clayey Silt Silt Sensitive Fines Silt Sandy Silt Silt Sensitive FinesClayey Silt Silt Clayey Silt SiltClayey SiltSiltSilty Clay Silt Silty Clay Clayey Silt Silt Clayey Silt Silt Sandy Silt Silt Ueq=8.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:15:13 10:25 Site: CELL 2 Sounding: SCPT-2E1 Cone: 249:T1500F15U500 Max Depth: 8.550 m / 28.05 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP2E1.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532800 Long: -109.503700 Sandy SiltSilty Sand/SandSand Silty Sand/Sand SiltClayey SiltSilty Sand/SandSandy SiltSilt Sandy Silt Silt Sandy Silt Silt Clayey Silt Sensitive Fines Clayey Silt Silt Clayey Silt Silt Sandy Silt Silt Clayey Silt Silt Clayey Silt Silt Clayey Silt Silt Clayey SiltSilt Sandy Silt Silt Clayey Silt Silt Ueq=11.3' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 17:31 Site: CELL 3 Sounding: SCPT-3-1S Cone: 249:T1500F15U500 Max Depth: 5.450 m / 17.88 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-1S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529050 Long: -109.504883 UndefinedSensitive FinesSandy SiltSilty Sand/Sand Clayey Silt Clay Sandy SiltSand Silty Sand/Sand Sandy Silt SiltClayey Silt Silt Sandy Silt SiltSandy Silt Silt Rock Removed Rock Removed Rock Removed Rock Removed Ueq=8.2' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 16:51 Site: CELL 3 Sounding: SCPT-3-2C Cone: 249:T1500F15U500 Max Depth: 6.200 m / 20.34 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-2C.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529783 Long: -109.505833 Silty Sand/Sand Sand Sandy Silt Silty Clay Silt Clayey SiltSensitive Fines Silt Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Clayey SiltSiltSilty ClayClayey Silt Sandy Silt Silt Clayey SiltSilt Clayey Silt Ueq=6.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 16:08 Site: CELL 3 Sounding: SCPT-3-3S Cone: 249:T1500F15U500 Max Depth: 7.250 m / 23.79 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-3S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.529600 Long: -109.508067 Sandy Silt Silty Sand/Sand Sandy Silt Silty Sand/Sand Silt Silty Sand/Sand Sandy SiltSilt Clayey Silt Silt Sensitive Fines Clayey Silt Silt Sensitive Fines Silt Sensitive FinesSilty ClaySensitive FinesClayey SiltSilty ClayClayey SiltSiltClayey SiltSiltClayey Silt Silt Sandy Silt Silt Sandy Silt Ueq=14.9' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 15:13 Site: CELL 3 Sounding: SCPT-3-4N Cone: 249:T1500F15U500 Max Depth: 6.450 m / 21.16 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-4N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.531333 Long: -109.508800 Silty Sand/Sand Sandy Silt Silt Clayey Silt Silt Sensitive Fines Clay Sandy Silt Sand Clayey Silt SiltSilty Clay Sensitive Fines Silt Sandy Silt Ueq=13.8' Ueq=18.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 14:24 Site: CELL 3 Sounding: SCPT-3-6N Cone: 249:T1500F15U500 Max Depth: 5.650 m / 18.54 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-6N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.531933 Long: -109.511650 Sandy SiltSilty Sand/SandSand Silty Sand/Sand Sandy Silt Clay Silt Silty ClaySiltSandy SiltSiltClayey Silt Sensitive Fines Silt Clay Sensitive FinesSiltSilty Clay Sensitive Fines Clayey Silt Sensitive Fines Ueq=5.6' U50=~54.0' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 10:10 Site: CELL 3 Sounding: SCPT-3-8N Cone: 249:T1500F15U500 Max Depth: 4.650 m / 15.26 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-8N.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.532400 Long: -109.513783 Sandy Silt Silty Sand/Sand Sandy Silt Silt Sandy Silt Silt Sandy Silt Silt Clayey Silt Silt Clayey Silt Silt Ueq=6.5' Equilibrium Pore Pressure from Dissipation 0 100 200 300 0 5 10 15 20 25 30 qt (tsf) De p t h ( f e e t ) 0.0 1.0 2.0 3.0 4.0 fs (tsf) 0 50 100 150 2000 u (ft) 0 250 500 7501000 Vs (ft/s) 0 6 12 SBT MWH Americas Job No: 13-52106 Date: 10:16:13 12:23 Site: CELL 3 Sounding: SCPT-3-8S Cone: 249:T1500F15U500 Max Depth: 4.650 m / 15.26 ftDepth Inc: 0.050 m / 0.164 ftAvg Int: 0.150 m File: 13-52106_SP3-8S.CORUnit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997Coords: Lat: 37.530767 Long: -109.515350 Silty Sand/Sand Sand Silty Sand/SandSandy SiltSilty Sand/SandSandSilty Sand/Sand Sandy Silt Silt Silty Sand/Sand Sandy Silt Silt Clayey Silt Ueq=~4.6' Ueq=0.8' Ueq=10.2' Equilibrium Pore Pressure from Dissipation References CONETEC INTERPRETATION METHODS A Detailed Description of the Methods Used in ConeTec’s CPT Interpretation and Plotting Software Revision SZW-Rev 05A April 8, 2011 Prepared by Jim Greig ConeTec Environmental and Geotechnical Site Investigation Contractors ConeTec Interpretations as of April 8, 2011 ConeTec’s interpretation routine provides a tabular output of geotechnical parameters based on current published CPT correlations and is subject to change to reflect the current state of practice. The interpreted values are not considered valid for all soil types. The interpretations are presented only as a guide for geotechnical use and should be carefully scrutinized for consideration in any geotechnical design. Reference to current literature is strongly recommended. ConeTec does not warranty the correctness or the applicability of any of the geotechnical parameters interpreted by the program and does not assume liability for any use of the results in any design or review. Representative hand calculations should be made for any parameter that is critical for design purposes. The end user of the interpreted output should also be fully aware of the techniques and the limitations of any method used in this program. The purpose of this document is to inform the user as to which methods were used and what the appropriate papers and/or publications are for further reference. The CPT interpretations are based on values of tip, sleeve friction and pore pressure averaged over a user specified interval (e.g. 0.20m). Note that qt is the tip resistance corrected for pore pressure effects and qc is the recorded tip resistance. Since all ConeTec cones have equal end area friction sleeves, pore pressure corrections to sleeve friction, fs, are not required. The tip correction is: qt = qc + (1-a) • u2 where: qt is the corrected tip resistance qc is the recorded tip resistance u2 is the recorded dynamic pore pressure behind the tip (u2 position) a is the Net Area Ratio for the cone (typically 0.80 for ConeTec cones) The total stress calculations are based on soil unit weights that have been assigned to the Soil Behavior Type zones, from a user defined unit weight profile or by using a single value throughout the profile. Effective vertical overburden stresses are calculated based on a hydrostatic distribution of equilibrium pore pressures below the water table or from a user defined equilibrium pore pressure profile (this can be obtained from CPT dissipation tests). For over water projects the effects of the column of water have been taken into account as has the appropriate unit weight of water. How this is done depends on where the instruments were zeroed (i.e. on deck or at mud line). Details regarding the interpretation methods for all of the interpreted parameters are provided in Table 1. The appropriate references cited in Table 1 are listed in Table 2. Where methods are based on charts or techniques that are too complex to describe in this summary the user should refer to the cited material. The Soil Behavior Type classification charts (normalized and non-normalized) shown in Figures 1 and 2 are based on the charts developed by Dr. Robertson and Dr. Campanella at the University of British Columbia. These charts appear in many publications, most notably: Robertson, Campanella, Gillespie and Greig (1986); Robertson (1990) and Lunne, Robertson and Powell (1997). The Bq classification charts shown in Figures 3a and 3b are based on those described in Robertson (1990) and Lunne, Robertson and Powell (1997). The Jefferies and Davies SBT chart shown in Figure 3c is based on that discussed in Jefferies and Davies, 1993. Where the results of a calculation/interpretation are declared ‘invalid’ the value will be represented by the text strings “-9999” or “-9999.0”. In some cases the value 0 will be used. Invalid results will occur because of (and not limited to) one or a combination of: 1. Invalid or undefined CPT data (e.g. drilled out section or data gap). 2. Where the interpretation method is inappropriate, for example, drained parameters in an undrained material (and vice versa). CPT Interpretation Methods Page 2/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 3. Where interpretation input values are beyond the range of the referenced charts or specified limitations of the interpretation method. 4. Where pre-requisite or intermediate interpretation calculations are invalid. The parameters selected for output from the program are often specific to a particular project. As such, not all of the interpreted parameters listed in Table 1 may be included in the output files delivered with this report. The output files are provided in Microsoft Excel XLS format. The ConeTec software has several options for output depending on the number or types of interpreted parameters desired. Each output file will be named using the original COR file basename followed by a three or four letter indicator of the interpretation set selected (e.g. BSC, TBL, NLI or IFI) and possibly followed by an operator selected suffix identifying the characteristics of the particular interpretation run. Table 1 CPT Interpretation Methods Interpreted Parameter Description Equation Ref Depth Mid Layer Depth (where interpretations are done at each point then Mid Layer Depth = Recorded Depth) Depth (Layer Top) + Depth (Layer Bottom) / 2.0 Elevation Elevation of Mid Layer based on sounding collar elevation supplied by client Elevation = Collar Elevation - Depth Avgqc Averaged recorded tip value (qc) n i cqnAvgqc 1 1 n=1 when interpretations are done at each point Avgqt Averaged corrected tip (qt) where: uaqqct)1( n i tqnAvgqt 1 1 n=1 when interpretations are done at each point Avgfs Averaged sleeve friction (fs) n i fsnAvgfs 1 1 n=1 when interpretations are done at each point AvgRf Averaged friction ratio (Rf) where friction ratio is defined as: qt fsRf%100 Avgqt AvgfsAvgRf%100 n=1 when interpretations are done at each point Avgu Averaged dynamic pore pressure (u) n i iunAvgu 1 1 n=1 when interpretations are done at each point AvgRes Averaged Resistivity (this data is not always available since it is a specialized test requiring an additional module) n i iYRESISTIVITnAvgu 1 1 n=1 when interpretations are done at each point AvgUVIF Averaged UVIF ultra-violet induced fluorescence (this data is not always available since it is a specialized test requiring an additional module) n i iUVIFnAvgu 1 1 n=1 when interpretations are done at each point AvgTemp Averaged Temperature (this data is not always available since it is a specialized test) n i iETEMPERATURnAvgu 1 1 n=1 when interpretations are done at each point CPT Interpretation Methods Page 3/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Interpreted Parameter Description Equation Ref AvgGamma Averaged Gamma Counts (this data is not always available since it is a specialized test requiring an additional module) n i iGAMMAnAvgu 1 1 n=1 when interpretations are done at each point SBT Soil Behavior Type as defined by Robertson and Campanella See Figure 1 2, 5 U.Wt. Unit Weight of soil determined from one of the following user selectable options: 1) uniform value 2) value assigned to each SBT zone 3) user supplied unit weight profile See references 5 T. Stress v Total vertical overburden stress at Mid Layer Depth. A layer is defined as the averaging interval specified by the user. For data interpreted at each point the Mid Layer Depth is the same as the recorded depth. h i n i iTStress 1 where I is layer unit weight hi is layer thickness E. Stress v’ Effective vertical overburden stress at Mid Layer Depth Estress = Tstress - ueq Ueq Equilibrium pore pressure determined from one of the following user selectable options: 1) hydrostatic from water table depth 2) user supplied profile For hydrostatic option: wtweqDDu where ueq is equilibrium pore pressure w is unit weight of water D is the current depth Dwt is the depth to the water table Cn SPT N60 overburden correction factor Cn=(v’)-0.5 where v’ is in tsf 0.5 < Cn < 2.0 N60 SPT N value at 60% energy calculated from qt/N ratios assigned to each SBT zone. This method has abrupt N value changes at zone boundaries. See Figure 1 4, 5 (N1)60 SPT N60 value corrected for overburden pressure (N1)60 = Cn • N60 4 N60Ic SPT N60 values based on the Ic parameter (qt/pa)/ N60 = 8.5 (1 – Ic/4.6) 5 (N1)60Ic SPT N60 value corrected for overburden pressure (using N60 Ic). User has 2 options. 1) (N1)60Ic= Cn • (N60 Ic) 2) qc1n/ (N1)60Ic = 8.5 (1 – Ic/4.6) 4 5 (N1)60csIc Clean sand equivalent SPT (N1)60Ic. User has 3 options. 1) (N1)60csIc = α + β((N1)60Ic) 2) (N1)60csIc = KSPT * ((N1)60Ic) 3) qc1ncs)/ (N1)60csIc = 8.5 (1 – Ic/4.6) FC ≤ 5%: α = 0, β=1.0 FC ≥ 35% α = 5.0, β=1.2 5% < FC < 35% α = exp[1.76 – (190/FC2)] β = [0.99 + (FC1.5/1000)] 10 10 5 Su Undrained shear strength based on qt Su factor Nkt is user selectable N kt vqtSu 1, 5 Su Undrained shear strength based on pore pressure Su factor NΔu is user selectable N u equuSu2 1, 5 k Coefficient of permeability (assigned to each SBT zone) 5 CPT Interpretation Methods Page 4/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Interpreted Parameter Description Equation Ref Bq Pore pressure parameter vqt uBq where: equuu and u = dynamic pore pressure ueq = equilibrium pore pressure 1, 5 Qt Normalized qt for Soil Behavior Type classification as defined by Robertson, 1990 ' v vqtQt 2, 5 Fr Normalized Friction Ratio for Soil Behavior Type classification as defined by Robertson, 1990 vqt fsFr%100 2, 5 Net qt Net tip resistance vqt qe Effective tip resistance 2uqt qeNorm Normalized effective tip resistance ' 2 v uqt SBTn Normalized Soil Behavior Type as defined by Robertson and Campanella See Figure 2 2, 5 SBT-BQ Non-normalized Soil Behavior type based on the Bq parameter See Figure 3 2, 5 SBT-BQn Normalized Soil Behavior based on the Bq parameter See Figure 3 2, 5 SBT-JandD Soil Behaviour Type as defined by Jeffries and Davies See Figure 3 7 SBT-BQn Normalized Soil Behavior base on the Bq parameter See Figure 3 2, 5 Ic Soil index for estimating grain characteristics Ic = [(3.47 – log10Q)2 + (log10 Fr + 1.22)2 ]0.5 Where: n v a a v P P qtQ '2 And Fr is in percent Pa = atmospheric pressure Pa2 = atmospheric pressure n varies from 0.5 to 1.0 and is selected in an iterative manner based on the resulting Ic 3, 8 FC Apparent fines content (%) FC=1.75(Ic3.25) - 3.7 FC=100 for Ic > 3.5 FC=0 for Ic < 1.26 FC = 5% if 1.64 < Ic < 2.6 AND Fr<0.5 3 Ic Zone This parameter is the Soil Behavior Type zone based on the Ic parameter (valid for zones 2 through 7 on SBTn chart) Ic < 1.31 Zone = 7 1.31 < Ic < 2.05 Zone = 6 2.05 < Ic < 2.60 Zone = 5 2.60 < Ic < 2.95 Zone = 4 2.95 < Ic < 3.60 Zone = 3 Ic > 3.60 Zone = 2 3 PHI Friction Angle determined from one of the following user selectable options: a) Campanella and Robertson b) Durgunoglu and Mitchel c) Janbu d) Kulhawy and Mayne See reference 5 5 5 11 CPT Interpretation Methods Page 5/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Interpreted Parameter Description Equation Ref Dr Relative Density determined from one of the following user selectable options: a) Ticino Sand b) Hokksund Sand c) Schmertmann 1976 d) Jamiolkowski - All Sands See reference 5 OCR Over Consolidation Ratio a) Based on Schmertmann’s method involving a plot of Su/v’ /( Su/v’)NC and OCR where the Su/p’ ratio for NC clay is user selectable 9 State Parameter The state parameter is used to describe whether a soil is contractive (SP is positive) or dilative (SP is negative) at large strains based on the work by Been and Jefferies See reference 8, 6, 5 Es/qt Intermediate parameter for calculating Young’s Modulus, E, in sands. It is the Y axis of the reference chart. Based on Figure 5.59 in the reference 5 Young’s Modulus E Young’s Modulus based on the work done in Italy. There are three types of sands considered in this technique. The user selects the appropriate type for the site from: a) OC Sands b) Aged NC Sands c) Recent NC Sands Each sand type has a family of curves that depend on mean normal stress. The program calculates mean normal stress and linearly interpolates between the two extremes provided in the Es/qt chart. Mean normal stress is evaluated from: 3'''' 3 1 hhvm where v’= vertical effective stress h’= horizontal effective stress and h = Ko • v’ with Ko assumed to be 0.5 5 qc1 qt normalized for overburden stress used for seismic analysis qc1 = qt (Pa/v’)0.5 where: Pa = atm. Pressure qt is in MPa 3 qc1n qc1 in dimensionless form used for seismic analysis qc1n = (qc1 / Pa)(Pa/v’)n where: Pa = atm. Pressure and n ranges from 0.5 to 0.75 based on Ic. 3 KSPT Equivalent clean sand factor for (N1)60 KSPT = 1 + ((0.75/30) • (FC – 5)) 10 KCPT Equivalent clean sand correction for qc1N Kcpt = 1.0 for Ic 1.64 Kcpt = f(Ic) for Ic > 1.64 (see reference) 10 qc1ncs Clean sand equivalent qc1n qc1ncs = qc1n Kcpt 3 CRR Cyclic Resistance Ratio (for Magnitude 7.5) qc1ncs < 50: CRR7.5 = 0.833 [(qc1ncs/1000] + 0.05 50 qc1ncs < 160: CRR7.5 = 93 [(qc1ncs/1000]3 + 0.08 10 CPT Interpretation Methods Page 6/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Interpreted Parameter Description Equation Ref CSR Cyclic Stress Ratio CSR = (av/v’) = 0.65 (amax / g) (v/ v’) rd rd = 1.0 – 0.00765 z z 9.15m rd = 1.174 – 0.0267 z 9.15 < z 23m rd = 0.744 – 0.008 z 23 < z 30m rd = 0.50 z > 30m 10 MSF Magnitude Scaling Factor See Reference 10 FofS Factor of Safety against Liquefaction FS = (CRR7.5 / CSR) MSF 10 Liquefaction Status Statement indicating possible liquefaction Takes into account FofS and limitations based on Ic and qc1ncs. 10 Cont/Dilat Tip Contractive / Dilative qc1 Boundary based on (N1)60 (v’)boundary = 9.58 x 10-4 [(N1)60]4.79 qc1 is calculated from specified qt(MPa)/N ratio 13 Cq Normalizing Factor Cq = 1.8 / (0.8 + ((v’/Pa)) 12 qc1 (Cq) Normalized tip resistance based on Cq qc1 = Cq * qt (some papers use qc) 12 Su(Liq)/s’v Liquefied Shear Strength Ratio Su(Liq) = 0.03 + 0.0143(qc1) v’ 13 CPT Interpretation Methods Page 7/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Friction Ratio (%), Rf Co n e B e a r i n g ( b a r ) , q t 1000 10 1 0 1 2 3 4 5 6 7 8 100 3 1 45 6 7 8 9 10 12 11 2 Zone qt / N Soil Behavior Type 1 2 3 4 5 6 7 8 9101112 sensitive fine grainedorganic materialclaysilty clay to clayclayey silt to silty claysandy silt to clayey siltsilty sand to sandy siltsand to silty sandsandgravelly sand to sandvery stiff fine grained *sand to clayey sand * * overconsolidated or cemented 2111.522.5345612 Figure 1 Non-Normalized Behavior Type Classification Chart No r m a l i z e d C o n e R e s i s t a n c e q- t vo 'vo 0.11 100 10 1000 1 10 Normalized Friction Ratio 1 23 4 5 6 7 8 9 fs x 100%q-t vo Zone Normalized Soil Behavior Type 1 2 3 4 5 6 7 8 9 sensitive fine grainedorganic materialclay to silty clayclayey silt to silty claysilty sand to sandy siltclean sands to silty sandsgravelly sand to sandvery stiff sand to clayey sandvery stiff fine grained Figure 2 Normalized Behavior Type Classification Chart CPT Interpretation Methods Page 8/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Figure 3 – Alternate Soil Behaviour Type Charts CPT Interpretation Methods Page 9/9 ConeTec Interpretation Methods SZW-Rev 05A Revised 2011-04-08 Table 2 References No. References 1 Robertson, P.K., Campanella, R.G., Gillespie, D. and Greig, J., 1986, “Use of Piezometer Cone Data”, Proceedings of InSitu 86, ASCE Specialty Conference, Blacksburg, Virginia. 2 Robertson, P.K., 1990, “Soil Classification Using the Cone Penetration Test”, Canadian Geotechnical Journal, Volume 27. 3 Robertson, P.K. and Fear, C.E., 1998, “Evaluating cyclic liquefaction potential using the cone penetration test”, Canadian Geotechnical Journal, 35: 442-459. 4 Robertson, P.K. and Wride, C.E., 1998, “Cyclic Liquefaction and its Evaluation Based on SPT and CPT”, NCEER Workshop Paper, January 22, 1997 5 Lunne, T., Robertson, P.K. and Powell, J. J. M., 1997, “ Cone Penetration Testing in Geotechnical Practice,” Blackie Academic and Professional. 6 Plewes, H.D., Davies, M.P. and Jefferies, M.G., 1992, “CPT Based Screening Procedure for Evaluating Liquefaction Susceptibility”, 45th Canadian Geotechnical Conference, Toronto, Ontario, October 1992. 7 Jefferies, M.G. and Davies, M.P., 1993. “Use of CPTu to Estimate equivalent N60”, Geotechnical Testing Journal, 16(4): 458-467. 8 Been, K. and Jefferies, M.P., 1985, “A state parameter for sands”, Geotechnique, 35(2), 99-112. 9 Schmertmann, 1977, “Guidelines for Cone Penetration Test Performance and Design”, Federal Highway Administration Report FHWA-TS-78-209, U.S. Department of Transportation 10 Proceedings of theNCEER Workshop on Evaluation of Liquefaction Resistance of Soils, Salt LakeCity, 1996. Chaired by Leslie Youd. 11 11 Kulhawy, F.H. and Mayne, P.W. ,1990, “Manual on Estimating Soil Properties for Foundation Design, Report No. EL-6800”, Electric Power Research Institute, Palo Alto, CA, August 1990, 306 p. 12 Olson, S.M. and Stark, T.D., 2002, “Liquefied strength ratio from liquefied flow filaure case histories”, Canadian Geotechnical Journal, 39: 951-966. 13 Oslon, Scott M. and Stark, Timothy D., 2003, “Yield Strength Ratio and Liquefaction Analysis of Slopes and Embankments”, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, August 2003. APPENDIX B SUBSURFACE EXPLORATION LOGS CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-2W2 SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.533317 ELEVATION (FT): LONG. : -109.512367 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 19 CORE DIAM.: 1.5" START DATE: 10/22/13 FINISH DATE: 10/22/13 LOGGED BY: RWS GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 19 feet. HOLE DIAM.: 2" OPERATOR: SHAWN STEINER HELPER: GARY COLDWELL 7-9' SANDY SILT TAILINGS - MOIST, VERY FINE TO FINE SANDY SILT TAILINGS, GRAY 11.5-13.5' CLAYEY SAND TAILINGS - MOIST, VERY FINE TO FINE CLAYEY SAND TAILINGS, GRAY 17-19' SANDY CLAY TAILINGS - V. MOIST TO WET, SANDYCLAY TAILINGS, BROWN (THE BOTTOM PORTION OF THE18.5-19' SAMPLE APPEARS TO BE SANDIER.) 1. SAMPLING NOT OBSERVED BY RWS. DESCRIPTIONS BASED ON INSPECTION OF SAMPLES AFTER COLLECTION.2. ALL SAMPLES, CONSIST OF NEARLY FULL 6" BRASS SLEEVES.3. A PORTION OF EACH SAMPLE RUN WAS RETRAINED BY ENERGY FUELS FOR ANALYTICAL TESTING. >18" 24" >18" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 33 . 8 / 3 2 . 4 87 . 6 / 9 3 . 3 36 / 2 7 / 9 2.8 0 41.8 58.1 ML Cc=0 . 2 4 cv=0 . 0 0 0 5 c m 2/s 1. 4 0 X 1 0 6 31 . 7 / 3 0 . 8 89 / 8 9 . 9 26 / 1 9 / 7 0 51 49 SC 34 . 2 / 2 9 . 3 79 . 3 / 8 3 . 8 40 / 2 4 / 1 6 0 34.9 65.1 CL CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-2W3 SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.533617 ELEVATION (FT): LONG. : -109.511300 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 23 CORE DIAM.: START DATE: 10/17/13 FINISH DATE: 10/17/13 LOGGED BY: JMC/JBV GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 23 feet. HOLE DIAM.: 2" OD OPERATOR: PETE BOWEN HELPER: GARY COLDWELL 5-6.5' SAND TAILINGS - MOIST, FINE TO MEDIUM SAND TAILINGS, TRACE SILT, GRAY 7-8.5' SILTY CLAYEY SAND TAILINGS - MOIST, SILTY CLAYEY SAND TAILINGS, GRAY 17.8-18' SILTY SAND TAILINGS - WET, SILTY FINE TO MEDIUM SAND TAILINGS, GRAY (MINIMAL RECOVERY, NOT LARGE ENOUGH TO TEST FOR CONSOL/PERM) 1. START TIME : 11:00 AM, HOLE LOCATED 3' NE OF CPT HOLE.2. ALL SAMPLES ARE 1.5" O.D. STAINLESS STEEL TUBES, END CAPS WERE WAXED. 22-22.2' SAND TAILINGS - WET, FINE SAND TAILINGS, TRACE OF SILT, GRAY (SAMPLE DISTURBED, INDEX TESTING ONLY) 4" 10" 10" 1" 2" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 0 59.3 40.7 33 . 3 / 2 1 . 3 91 . 3 / 9 7 . 3 27 / 2 1 / 6 2.84 0 53.7 46.3 SM-SC Cc=0 . 1 1 cv=0 . 0 0 0 1 c m 2/s 3.3 X 1 0 6 94.327.3 25.8 94.6 31.3 9.0 -10.8' - SILTY CLAYEY SAND TAILINGS - WET, SILTYCLAYEY FINE SAND TAILINGS, GRAY CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-2W4-C SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.533100 ELEVATION (FT): LONG. : -109.509967 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 17 CORE DIAM.: 1.5" START DATE: 10/17/13 FINISH DATE: 10/17/13 LOGGED BY: JMC/JBV GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 17 feet. HOLE DIAM.: 2" OPERATOR: PETE BOWEN HELPER: GARY COLDWELL 8.7 -9' - SAND TAILINGS - WET, FINE SAND TAILINGS, GRAY 16.5 -17' SILTY CLAYEY SAND TAILINGS - WET, SILTY CLAYEYFINE SAND TAILINGS, DARK GRAY 1.START TIME : 2:55 PM, WEATHER: SUNNY, 60°, END TIME: 4:40 PM2. ALL SAMPLES ARE 1.5" O.D. STAINLESS STEEL TUBES, 24" LONG. 5.2-6' SILTY CLAYEY SAND TAILINGS - MOIST, SILTY CLAYEY FINE SAND TAILINGS, LIGHT GRAY 11.3 - 12' SILTY CLAYEY SAND TAILINGS - WET, SILTY CLAYEY FINE TO MEDIUM SAND TAILINGS 14.3 - 14.5' SILTY SAND TAILINGS - WET, SILTY SAND(QUARTZ) TAILINGS, GRAY 10" 25" 8" 2" 6" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 0 65.9 34.2 1.2 57.6 41.2 29.3 96.3 114.413.2 0 57.3 42.626.3 95.3 26 / 2 0 / 6 SM-SC CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-2W6-S(2) SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.532133 ELEVATION (FT): LONG. : -109.507417 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 17 CORE DIAM.: 1.5" START DATE: 10/22/13 FINISH DATE: 10/23/13 LOGGED BY: RWS GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y PE R M . ( C M / S E C ) DE P T H ( F T ) RU N RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 17 feet. HOLE DIAM.: 2" PROJ. NUM.: 1009740 OPERATOR: SHAWN STEINER HELPER: GARY COLDWELL PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. 5-7' (APPROX.) - PUSHING THROUGH DEBRIS 14-17' SANDY SILT TAILINGS - WET, SANDY SILT TAILINGS WITH VERY FINE SAND, GRAY, SLIGHTLY SANDIER AND COARSER SAND (FINE TO MEDIUM) AT TIP OF 16' SAMPLE.* TOP 3" OF THIS SAMPLE WAS RETAINED BY ENERGY FUELSFOR ANALYTICAL TESTING. 10-12' CLAYEY SAND TAILINGS - VERY MOIST, CLAYEY VERYFINE TO FINE SAND TAILINGS, MORE CLAY AT TOP, LESS CLAY AT BOTTOM (TRACE), GRAY 12-14' SILT TAILINGS - VERY MOIST TO WET, SILT TAILINGS,GRAY, TIP OF SAMPLER WET AT ~ 14'. 1. START TIME: 2:40PM 10/22/13, END TIME 10:45 AM 10/23/132. ALL SAMPLES (EXCEPT 11.5 -12') CONSIST OF NEARLY FULL 6" BRASS SLEEVES.3. A PORTION OF EACH SAMPLE RUN WAS RETAINED BY ENERGY FUELS FOR ANALYTICAL TESTING. 6" 15" 21" WHITE MESA URANIUM MILL CO N S O L I D A T I O N 63.8 61 68 / 3 6 / 3 2 2.85 0 3 97 MH 1.7 X 1 0 7 Cc=0 . 2 7 cv=0 . 0 0 3 c m 2/s45.3 73.8 29 . 7 / 5 9 94 . 6 / 6 6 . 3 37 / 2 6 / 1 1 0 39.8 60.2 ML CLIENT:SUBSURFACE EXPLORATION LOG LOG No : SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.532050 ELEVATION (FT): LONG. : -109.507700 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 18 CORE DIAM.: 1.5" START DATE: 10/22/13 FINISH DATE: 10/23/13 LOGGED BY: RWS GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 18 feet. HOLE DIAM.: 2" OPERATOR: SHAWN STEINER HELPER: GARY COLDWELL 6-8.5' SILTY CLAY WITH SAND - DRY TO SL. MOIST, HARD SILTY CLAY WITH FINE SAND, BROWN, MAY BE INTERIM COVER MATERIAL, SAMPLER DRY 16-18' SANDY SILT TAILINGS - WET SANDY SILT TAILINGS,GRAY, FINE TO MEDIUM SAND AT TOP OF RUN, GRADES TOFINE SAND AND MORE SILT AT BOTTOM OF RUN, SOME CLAYAT 18' 11-11.8' PUSHING SOMETHING HARD (DEBRIS OR ROCK), STOPPED AT 11.8" AND MOVED TO NEW LOCATION 8.5-11' PUSHING SOMETHING HARD, POOR RECOVERY,SAMPLER DRY, LOOSE SAND MATERIAL OBSERVED (DRY) 14-16' SANDY SILT TAILINGS- VERY MOIST TO WET SANDY SILT TAILINGS, GRAY, MORE FINE - MEDIUM SAND AT BOTTOM 1. START TIME: 3:45 PM 10/22/13, HOLE LEFT OPEN OVERNIGHT, END TIME 8:30 AM2. AT 8:30 AM ON 10/23/13, MEASURED WATER LEVEL IN OPEN CPT HOLE (FROM CPT ON 10/22/13). NO FREE WATER MEASURED TO 14.3 FT bgs(HOLE CAVED IN AT 14.3 FT).3. ALL SAMPLES CONSIST OF FULL OR NEARLY FULL 6" BRASS SLEEVES. 4. A PORTION OF EACH SAMPLE RUN WAS RETAINED BY ENERGY FUELS FOR ANALYTICAL TESTING. 18" 4" 18" 20" CPT-2W6-S(3) PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 1.6 X 1 0 7 Cc=0 . 6 1 cv=0 . 0 0 2 c m 2/s 58.9 71.5 54 / 3 0 / 2 4 2.77 0 45.6 54.4 MH 40.7 82.2 54.6 15 CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-2E1 SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.532800 ELEVATION (FT): LONG. : -109.503700 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 28 CORE DIAM.: 1.5" START DATE: 10/17/13 FINISH DATE: 10/18/13 LOGGED BY: JMC/JBV GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 28 feet. HOLE DIAM.: 2" OPERATOR: PETE BOWEN HELPER: GARY COLDWELL 7.4 - 7.5' SAND TAILINGS - MOIST, FINE SAND TAILINGS,BROWNISH GRAY (SAMPLE DISTURBED, INDEX TESTINGONLY), ADDED SIDE MATERIAL TO TUBE 13.8 - 14' SAND TAILINGS - WET, FINE SAND TAILINGS, LIGHT GRAY 8.4 - 8.5' SAND TAILINGS - MOIST, FINE TO MEDIUM SANDTAILINGS, TR/SO SILT, GRAY AND LIGHT BROWN(HELD SAMPLE FOR 10 MIN BEFORE PUSHING.) 24.8 - 25' SAND TAILINGS - WET, FINE SAND TAILINGS, LIGHT GRAY (UPPER 1/4" OF SAMPLE DISTURBED FROM ROD TIP. WAITED FOR 10 MIN. BEFORE PUSH. WAITED FOR 6 MIN AFTER.) 27.0 - 28' SILTY SAND TAILINGS - WET, SILTY FINE SANDTAILINGS, GRAY AND BROWN(WAITED FOR 20 MIN BEFORE PUSH, 10 MIN AFTER.) 1. START TIME : 6:00 PM. END TIME: 6: 25 PM FOR DAY. RESTART: 8:00 PM, END TIME: 11:30 AM. HOLE IS LOCATED APPROX 2' SOUTH OF CPTHOLE. WEATHER: SUNNY, 50°2. ALL SAMPLES WERE COLLECTED IN 1.5" O.D. STAINLESS STEEL TUBES.3. SAMPLE RECOVERY LISTED AS MATERIAL IN SAMPLE COVERS (SHOE HOLDS 1"). 1" 1" 2" 5" 2" 2" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 25.5 98.1 0 70.9 29.2 24.6 99.7 15.8 105.9 31 / 1 9 / 1 2 18.5 - 19' SILTY CLAYEY SAND TAILINGS - WET, SILTY CLAYEY FINE SAND TAILINGS, LIGHT GRAY (WAITED FOR 22 MIN.) 7.5 - 8.5' (RECOVERY OF ABOUT 1" IN SHOE) CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-3-4N SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.531333 ELEVATION (FT): LONG. : -109.508800 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 19 CORE DIAM.: 1.5" START DATE: 10/22/13 FINISH DATE: 10/22/13 LOGGED BY: RWS GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 19 feet. HOLE DIAM.: 2" OPERATOR: SHAWN STEINER HELPER: GARY COLDWELL 5-9' SILTY CLAYEY SAND TAILINGS - VERY MOIST TO WET,SILTY CLAYEY FINE TO MEDIUM SAND TAILINGS, SLIGHTLYSILTY, BROWNISH GRAY 12.5-14.5' NO SAMPLE, SAND OBSERVED IN EMPTY SAMPLER, SAMPLER WET. 16-19' WAITED 5 MINUTES AFTER PUSH. NO SAMPLE. SAND OBSERVED IN EMPTY SAMPLER, SAMPLER WET. 1. START TIME: 12:45 PM, END TIME: 12:20 PM2. ALL SAMPLES CONSIST OF NEARLY FULL 6" BRASS SLEEVES.3. A PORTION OF EACH SAMPLE RUN WAS RETAINED BY ENERGY FUELS FOR ANALYTICAL TESTING. 9-11.5' SAND TAILINGS - VERY MOIST TO WET, VERY FINE TOFINE SAND TAILINGS, SLIGHTLY SILTY, BROWNISH GRAY 8" 9" 9" 0" 0" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 26.1 96.9 0 88.8 11.2 29.2 93.5 0 80.4 19.6 27.1 98.3 0 87 13 CLIENT:SUBSURFACE EXPLORATION LOG LOG No : CPT-3-6N SHEET No: 1 OF 1 CONTRACTOR INFORMATION SUBSURFACE EXPLORATION INFORMATION CPT COMPANY: CONE TEC LAT. : 37.531933 ELEVATION (FT): LONG. : -109.511650 CPT RIG: TRACK TC-2 SAMPLING METHOD: DIRECT PUSH TOTAL DEPTH (FT): 18.5 CORE DIAM.: 1.5" START DATE: 10/22/13 FINISH DATE: 10/22/13 LOGGED BY: RWS GR A P H I C WA T E R C O N T E N T ( % ) DR Y D E N S I T Y ( P C F ) AT T E R B E R G L I M I T S SP E C I F I C G R A V I T Y DE P T H ( F T ) RE C O V E R Y ( I N . ) PU S H S A M P L E S % G R A V E L % S A N D % P A S S I N G N O . 2 0 0 (L L / P L / P I ) NOTES: CPT RIG INFORMATION DESCRIPTION FIELD SAMPLE RECOVERY DATA LABORATORY TEST DATA L:\D e s i g n - D r a f t i n g \ C l i e n t s - A - H \ D E N I S O N M I N E S \ 0 1 3 - S h e e t S e t \ 2 0 1 3 - 0 5 - 2 8 S U B S U R F A C E E X P L \ 1 0 0 9 7 4 0 S U B S U R F A C E E X P L R E V I S E D 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 31 32 33 34 E.O.B = 18.5 feet. HOLE DIAM.: 2" OPERATOR: SHAWN STEINER HELPER: GARY COLDWELL 5-7' SANDY CLAY TAILINGS - MOIST, SANDY CLAY TAILINGSWITH FINE SAND, MORE CLAY AT ABOUT 6.4 - 6.6 FT, LESS CLAY AT TOP (6') AND BOTTOM (7') 13-15.5' CLAY TAILINGS WITH SAND - VERY MOIST TO WET,CLAY TAILINGS WITH VERY FINE TO FINE SAND, BROWNISHGRAY 16-18.5' SILTY TAILINGS WITH SAND - VERY MOIST TO WET,SILT TAILINGS WITH VERY FINE SAND, BROWNISH GRAY 1. START TIME: 10:40 AM, END TIME: 11:45 AM2. ALL SAMPLES CONSIST OF NEARLY FULL 6" BRASS SLEEVES.3. A PORTION OF EACH SAMPLE RUN WAS RETAINED BY ENERGY FUELS FOR ANALYTICAL TESTING. 9-11' SANDY SILT TAILINGS - WET, SANDY SILT TAILINGS,BROWN 16" 24" 30" 30" PE R M . ( C M / S E C ) RU N PROJ. NUM.: 1009740 PROJ. LOC.: BLANDING, UT US C S C L A S S . ENERGY FUELS RESOURCES (USA) INC. WHITE MESA URANIUM MILL CO N S O L I D A T I O N 38.1 78 40 / 2 6 / 1 4 0 30.7 69.3 ML Cc=0 . 2 8 cv=0 . 0 0 0 5 c m 2/s 49 . 2 / 3 5 . 7 72 . 1 / 8 0 . 6 37 / 2 3 / 1 4 0 22.2 77.8 CL 40 . 5 / 3 9 . 5 81 . 1 / 8 3 . 6 31 / 2 4 / 7 0 16.6 83.4 ML 31.3 78.9 37 / 2 2 / 1 5 2.86 0 35.8 67.4 CL 9. 8 X 1 0 6 APPENDIX C DIRECT PUSH SAMPLING PHOTOGRAPHS CPT-2W2, 7.5 - 9 ft CPT-2W2, 7.5 - 8 ft CPT-2W2, 8 – 8.5 ft CPT-2W2, 8.5 - 9 ft CPT-2W2, 11.5 – 13.5 ft CPT-2W2, 11.5 - 12 ft CPT-2W2, 12 – 12.5 ft CPT-2W2, 12.5 - 13 ft CPT-2W2, 13 – 13.5 ft CPT-2W2, 17.5 - 19 ft CPT-2W2, 17.5 – 18 ft CPT-2W2, 18 – 18.5 ft CPT-2W2, 18.5 - 19 ft CPT-2W3, 6 ft CPT-2W3, 8 ft CPT-2W3, 10 ft CPT-2W3, 18 ft CPT-2W3, 22 ft CPT-2W4-C, 6 ft CPT-2W4-C, 9 ft CPT-2W4-C, 12 ft CPT-2W4-C, 14.5 ft CPT-2W4-C, 17 ft CPT-2W6-S (2), 11.5 - 12 ft CPT-2W6-S (2), 13 - 14 ft CPT-2W6-S (2), 13 – 13.5 ft CPT-2W6-S (2), 13.5 – 14 ft CPT-2W6-S (2), 14.5 - 16 ft CPT-2W6-S (2), 14.5 - 15 ft CPT-2W6-S (2), 15 – 15.5 ft CPT-2W6-S (2), 15.5 – 16 ft CPT-2W6-S (3), 15 - 16 ft CPT-2W6-S (3), 15 – 15.5 ft CPT-2W6-S (3), 15.5 - 16 ft CPT-2W6-S (3), 17 – 18 ft CPT-2W6-S (3), 17 – 17.5 ft CPT-2W6-S (3), 17.5 - 18 ft CPT-2E1, 7.5 ft CPT-2E1, 14 ft CPT-2E1, 19 ft CPT-2E1, 25 ft CPT-2E1, 28 ft CPT-3-4N, 6.5 – 7 ft CPT-3-4N, 8.5 – 9 ft CPT-3-4N, 11 – 11.5 ft CPT-3-6N, 6 – 7 ft CPT-3-6N, 6 – 6.5 ft CPT-3-6N, 6.5 – 7 ft CPT-3-6N, 9.5 – 11 ft CPT-3-6N, 9.5 – 10 ft CPT-3-6N, 10 – 10.5 ft CPT-3-6N, 10.5 – 11 ft CPT-3-6N, 14 – 15.5 ft CPT-3-6N, 14 – 14.5 ft CPT-3-6N, 14.5 – 15 ft CPT-3-6N, 15 – 15.5 ft CPT-3-6N, 17 – 18.5 ft CPT-3-6N, 17 – 17.5 ft CPT-3-6N, 17.5 – 18 ft CPT-3-6N, 18 – 18.5 ft APPENDIX D GEOTECHNICAL LABORATORY TEST RESULTS Table D‐1 White Mesa Mill ‐ Laboratory Testing Results for Tailings Samples from Cell 2 and Cell 3 Tailings Investigation, October 2013 Sampling Location Sample Depth Intervala (ft) Sample Length (in)Material Descriptiona % Gravel % Coarse Sand % Medium Sand % Fine Sand % Silt % Clay % Passing #200 Liquid Limit (%) Plastic Limit (%) Plastic Index Moisture Content (%) Dry Density (pcf)Porosity Total Density (pcf)Cc Cr cv Rangee (cm2/s)Averagef cv (cm2/s) 12 1 212 1 2 7.5‐9.0 6/6/6 sandy silt tailings 0 0 1.6 40.2 58.1 36 27 9 33.8 32.4 87.6 93.3 117.2 123.5 2.80 95.2 104.0 1.40E‐06 30.4 80.6 0.54 105.1 0.24 0.01 0.0003 ‐ 0.0005 0.0005 ML sand‐slime tailings 11.5‐13.5 6/6/6/6 clayey sand tailings 0 0 2.9 48.1 49 26 19 7 31.7 30.8 89 89.9 117.2 117.6 2.8 92.2 91.4 SC sand‐slime tailings 17.5‐19.0 6/6/6 sandy clay tailings 0 50.9 14.2 65.1 40 24 16 34.2 29.3 79.3 83.8 106.4 108.4 2.86 78.2 74.2 CL slime tailings 6.0‐6.5 4 sand tailings 25.8 94.6 119 2.7 89.2 7‐8.5 10 silty clayey sand tailings 0 35.1 11.2 46.3 27 21 6 33.3 91.3 121.7 2.84 100.5 3.30E‐06 31.5 94.4 0.47 124.1 0.11 0.01 0.0004 ‐ 0.002 0.001 SM‐SC sand‐slime tailings 9.0‐10.8 10 silty clayey sand tailings 0 0 4.2 55.1 40.7 27.3 94.3 120 2.8 89.6 SM, SC, or SM‐SC sand‐slime tailings 16‐18.0 1 silty sand tailings 31.3 22.0‐22.2 2 sand tailings (sample disturbed) 5.2‐6.0 10 silty clayey sand tailings 1.2 1.6 8.8 47.2 41.2 13.2 114.4 129.5 2.8 70.1 SM, SC, or SM‐SC sand‐slime tailings 8.7‐9.0 2.5 sand tailings 21.3 97.3 118 2.7 78.6 11.3‐12.0 8 silty clayey sand tailings 0 0.1 11.1 54.7 34.2 29.3 96.3 124.5 2.80 100.7 SM, SC, or SM‐SC sand‐slime tailings 14.3‐14.5 2 silty sand tailings 26 2.8 16.5‐17.0 6 silty clayey sand tailings 0 0.1 4.6 52.6 42.6 26 20 6 26.3 95.3 120.4 2.8 88.4 SM‐SC sand‐slime tailings 11.5‐12.0 6 clayey sand tailings 45.3 73.8 107.2 2.8 92.8 13.0‐14.0 6/6 silt tailings 0 81.2 15.8 97 68 36 32 63.8 61 99.92 2.85 94.9 1.70E‐07 35.5 80.8 0.55 109.5 0.27 0.02 0.001 ‐ 0.004 0.003 MH slime tailings 14.5‐16.0 6/6/6 sandy silt tailings 0 45.8 14.4 60.2 37 26 11 29.7 59 94.6 66.3 122.7 105.4 2.86 95.8 99.7 ML slime tailings 15.0‐16.0 6/6 sandy silt tailings 0 43.9 10.5 54.4 54 30 24 58.9 71.5 113.6 2.77 115.1 1.60E‐07 71.6 56.2 0.67 96.4 0.61 0.06 0.001 ‐ 0.004 0.002 MH sand‐slime tailings 17.0‐18.0 6/6 sandy silt tailings 54.6 40.7 82.2 115.7 2.8 101.2 sand‐slime tailings 7.4‐7.5 1 sand tailings (sample disturbed) 13.8‐14 2 sand tailings 24.6 99.7 124.2 2.7 96.3 18.5‐19.0 5 silty clayey sand tailings 0 0 2.6 68.3 29.2 25.5 98.1 123.1 2.7 96.0 SM, SC, or SM‐SC sand tailings 24.8‐25.0 2 sand tailings (sample disturbed) 27.0‐28.0 2 silty sand tailings 31 19 12 15.8 105.9 122.6 2.8 68.1 6.5‐7.0 6 silty clayey sand tailings 0 0 17.6 69.4 13 27.1 98.3 124.9 2.7 102.5 SM, SC, or SM‐SC sand tailings 8.5‐9.0 6 silty clayey sand tailings 0 0 1.7 78.7 19.6 29.2 93.5 120.8 2.7 98.3 SM, SC, or SM‐SC sand tailings 11.0‐11.5 6 sand tailings 0 0 3.1 85.7 11.2 26.1 96.9 122.2 2.7 95.4 SP‐SM or SP‐SC sand tailings 6.0‐7.0 6/6 sandy clay tailings 0 0 0.1 35.7 67.4 37 22 15 31.3 78.9 103.6 2.86 70.9 9.80E‐06 41.0 69.8 0.61 98.4 0.28 0.02 0.0001 ‐ 0.001 0.0005 CL slime tailings 9.5‐11.0 6/6/6 sandy silt tailings 0 56.7 12.6 69.3 40 26 14 38.1 47.5 78 80.3 107.7 2.86 84.6 ML slime tailings 14.0‐15.5 6/6/6 clay tailings with sand 0 58.1 19.7 77.8 37 23 14 49.2 35.7 72.1 80.6 107.6 109.4 2.86 95.4 84.1 CL slime tailings 17.0‐18.5 6/6/6 silt tailings with sand 0 65.3 18.1 83.4 31 24 7 40.5 39.5 81.1 83.6 113.9 116.6 2.86 96.5 99.6 ML slime tailings Notes:aMaterial descriptions based on laboratory testing results and subsurface exploration logs. bSoil moisture test samples taken from center of sample. The deepest samples were selected for testing. Sample 1 is the deepest sample collected and Sample 2 is the sample above the bottom sample, except for 2W3 @ 7 ‐ 8.5'. For this sample, two samples were cut from the center for testing. dAssumed values used to calculate % saturation are shown in red. Assumed values used for sand, sand‐slime, and slime tailings were 2.7 (based on typical value), 2.8 (based on average measured value for sand‐slime samples), and 2.86 (based on average measured value for slime tailings), respectively. eRange of cv values for linear portion of consolidation curve. fAverage cv value for linear portion of consolidation curve. ConsolidationAtterber LimitsParticle Size Analysis 58.1 29.2 3‐6N 3‐4N 3 39.8 30.7 2W3 2W4‐C 2W6‐S (2) 2W6‐S (3) 2E1 2W2 22.2 16.6 Moisture Contentb (%) Specific Gravityc, Gs 53.7 49 34.9 19.6 45.6 Hydraulic Conductivity (cm/s) 11.2 67.4 13 Saturationd (%) Dry Unit Weight (pcf) 41.2 34.2 42.6 Total Density (pcf) 40.7 Tailings Classification based on % Passing No. 200 ( 0 ‐ 30% sand, 30 ‐ 60% sand‐slime, and 60 ‐ 100% slime, ranges adjusted from Larson and Mitchell, 1986) USCS MWH Summary FIGURE D‐1 GRADATION TEST RESULTS ‐ CELL 2 AND CELL 3 TAILINGS SAMPLES ENERGY FUELS (USA) CORP. WHITE MESA MILL MWH Summary 12" 6" 4" 3" 2"1" 3/4" 0.5" 3/8" #4 #10 #20 #40 #60 #100 #200 0 10 20 30 40 50 60 70 80 90 1000 10 20 30 40 50 60 70 80 90 100 0.0010.010.11101001000 PE R C E N T R E T A I N E D B Y W E I G H T PE R C E N T F I N E R B Y W E I G H T PARTICLE SIZE (MM) 2W2 (18'-18.5') 2W3 (7'-8.5') 2W6-S(2) (13'-14') 2W6-S(2) (15.5'-16') 2W6-S(3) (15.5'-16') 3-6N (10'-11') 3-6N (14.5'-15.5') 3-6N (17.5'-18.5') 2E1 (18.5'-19') 2W2 (8.5'-9') 2W2 (12.5'-13.5') 2W3 (9'-10.8') 2W4-C (5.2'-6') 2W4-C (11.3'-12') 2W4-C (16.5'-17') 3-4N (6.5'-7') 3-4N (8.5'-9') 3-4N (11'-11.5') 3-6N (6.5'-7') HYDROMETERSIEVE SIZE LETTER OF TRANSMITTAL Signed: _______________________________N. Randy Rainwater, P.E.Laboratory Department ManagerDistribution: 1 Copy – MWH Americas, Inc. Ms. Melanie Davis, P.E. CC: IF ENCLOSURES ARE NOT AS NOTED, PLEASE NOTIFY US AT ONCE. This Letter of Transmittal and the documents accompanying this Letter of Transmittal contain information from S&ME. Inc.which is confidential and legally privileged. The information is intended only for the use of the individual or entity named in thisLetter of Transmittal. If you are not the authorized recipient, you are hereby notified that any disclosure, copying, distribution,or the taking of any action in reliance on these documents is strictly prohibited. S&ME, Inc. 1413 Topside Road Date: S&ME Project No: April 3, 2014 1439-13-335Louisville, Tennessee 37777 Project Name: White Mesa Mill(865) 970 0003 – Phone Reference: Laboratory Test Results(865) 970 2312 – Fax Transmittal No. 6 www.smeinc.com To: MWH Americas, Inc. 3665 JFK Parkway, Suite 206 Fort Collins, Colorado 80525Attention: Ms. Melanie Davis, P.E. With this transmittal, we are sending you the following: Document NumberofPages Final Report of Laboratory Testing Results 95 These documents are transmitted as checked below: [ ] For Approval [ ] For Your Use [X] As Requested [ ] For review & comment [ ] ________ April 3, 2014 MWH Americas, Inc. 3665 JFK Parkway, Suite 206 Fort Collins, Colorado 80525 Attention: Reference: Ms. Melanie M. Davis, P .E. Report of Laboratory Testing Results White Mesa Mill Uranium Tailings San Juan County, Utah S&ME Project No. 1439-13-335 Dear Ms. Davis: As requested by MWH Americas, Inc. (MWH), S&ME, Inc. (S&ME), has completed laboratory tests on samples received at our Knoxville Location Laboratory on November 25, 2013. The testing was performed in general accordance with S&ME Proposal No. 3913342R3; MWH Task Order No. WMOOI; MWH White Mesa Testing Schedules dated December 3, 2013 and February 6, 2014; and the ASTM standard test methods listed below. The reports of test results are included with this report. • ASTM D4 318 Liquid Limit, Plastic Limit, and Plasticity Index of Soils • ASTM D422 Particle-Size Analysis of Soils • ASTM Dl 140 Amount of Material in Soils Finer than No. 200 (75-µm) Sieve • ASTM D2216 Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass • ASTM D854 Specific Gravity of Soil Solids by Water Pycnometer • ASTM D5084 Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter • ASTM D2435 One-Dimensional Consolidation Properties of Soils Using Incremental Loading • ASTM D7263 Laboratory Determination of Density (Unit Weight) of Soil Specimens As requested by MWH, ASTM D2435 tests were conducted on 1.4 inch diameter specimens. The consolidation loading schedules were as discussed in email correspondence with you on December 1, 2, and 23, 2013. The consolidation specimen from sample 2W6-S(3), 15.0 to 16.0 feet, was only loaded to a maximum pressure of 12.83 ksf. At the end of the 12.83 ksfload increment the specimen had consolidated approximately 0.24 inches which was near the consolidation limit of the apparatus when testing 1.4 inch diameter specimens. Excluding oven dried material, there was an insufficient quantity of soil to perform the tests requested on composite specimens of 3-4N. S&ME, INC. / 1413 Topside Road I Louisville, TN 37777 Ip 865.970.0003 f 865.970.2312 / www.smeinc.com Report of Laboratory Testing White Mesa Mill Uranium Tailings I San Juan Countv. Utah S&ME, Inc. Project No. 1439-13-335 April 3. 2014 The results of the One-Dimensional Consolidation tests are presented using Geosystem Swell/Consolidation Test Module by Von Gunten Engineering Software, Inc. Soil properties such as coefficient of consolidation and compression indices are reported. However, these properties a;e subject to engineering interpretation an.d are not direct results of the laboratory tests which were conducted by S&ME, Inc. The client is responsible for the interpretation of the consolidation test data. Draft reports of test results were sent in earlier transmittals. Test result data included in this report are the same as in the most recent draft reports. Where minor changes, (e.g. descriptions and remarks), were made in test reports, the report was given a new report and review date. The attached reports are arranged in order of sample identification and depth within four sections as follows: 1. Physical Properties, ASTM D4318, ASTM D422, ASTM Dll40 2. Moisture Content and Unit Weight, ASTM D2216, ASTM D7263 3. Hydraulic Conductivity, ASTM D5084 4. One-Dimensional Consolidation and Soil Specific Gravity, ASTM D2435, ASTM D854 S&ME appreciates the opportunity to be of service to MWH. Please feel free to contact us if you have questions or comments concerning this report or any of our services. Respectfully submitted, S&ME,Inc. /.£/~ N. Randy Rainwater, P .E. (Tennessee) 1/ 1J /) //w, //4'?.41l.----Joa~. Pearson, P.E. (Tennessee) Project Manager Project Engineer NRR/JBP/jc Attachments: Laboratory Test Reports Report of Laboratory Testing S&ME, Inc. Project No. 1439-13-335White Mesa Mill Uranium Tailings / San Juan County, Utah April 3, 2014 Physical Properties ASTM D4318 ASTM D422 ASTM D1140 3 A B C D E F N LL 25 This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. One-point Method 19 Tare Weight LL =F * FACTOR 9.44 Water Weight (B-C) Dry Soil Weight (C-A) 3.02 # OF DROPS % Moisture (D/E)*100 32.0% 19 Type and Specification Oven 19931 4/10/2013 18435 MWH Americas, Inc. Balance (0.01 g) 2E1 ASTM D4318 AASHTO T 89 Client Address: Client Name: Grooving tool Cal Date: Type and Specification Boring No.: Fort Collins, CO Form No. TR-D4318-T89-90 AASHTO T 90xo Revision Date: 11/20/07 Revision No. 0 Project #: Project Name: 12/3/2013 o S&ME ID # Cal Date: Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 4/8/2013 12/23/13 18640 Report Date: Sample Date: White Mesa Mill Test Date(s) 12/12/13 S&ME ID # Group Symbol Plastic Limit 18.6% 10 24.40 16.58 All Moisture Contents determined by ASTM D2216 1.46 25.86 7.85 7.93 18.5% 1.47 25.98 24.5127.74 32.66 20.59 3.40 2.77 31.14 10.79 9.30 LL Apparatus 18517 107 12/2/2013 30.56 27.54 Wet Soil Weight + A Dry Soil Weight + A Liquid Limit 22 35 31.5% 29.8% 29.89 Ave. Average Plastic Index One Point Liquid Limit 18.6% ASTM D4318: Liquid Limit, Plastic Limit, & Plastic Index of Soils CL 31 19 12 Multipoint Method Liquid Limit 27.8 - 28.0 ft 0.979 0.985 0.99 Derek Baker Air Dried 12/12/2013 24 Factor 1.000 NP, Non-Plastic N. Randy Rainwater Notes / Deviations / References:Group symbol is for minus No. 40 portion only. No. 40 Sieve 2479 Technician Name Date Wet Preparation 26 1.005 1.022 Date 18.10 100 9 16.95 16.55 Dry Preparation 12/23/2013 Technical Responsibility 10/18/13 1439-13-335 Depth: o 0.995 0.974 28 30 2721 22 N Factor Log No.: 10017 Tare #: 7/15/2013 Plastic LimitPan # 1.014 29 1.018 1.009 N 20 Liquid Limit, Plastic Limit, and Plastic Index 23 15 20 25 30 35 40 29.0 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 10 100 % M o i s t u r e C o n t e n t # of Drops S&ME, INC. - Corporate 3201 Spring Forest Road Raleigh, NC. 27616 ASTM D 4318, 2E1, 27.8-28 ft.xls Page 1 of 1 4 97.4% 0.0% 0.0% 62.2% 70.8% % Passing #200 = 0.2% 2.6% 15.1% 42.2% 29.2% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 114.27 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 Plasticity tests were not performed. Plasticity is described by visual-manual method. 12/23/2013 29.2% 12/23/13 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 25.4% 120.30 Sieve Analysis of Soils 57.8%#100 0.150 Sample Log No.: 10017 ASTM D422 84.9% Tare Wt. Depth:18.5 - 19.0 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 20.0% 8.6% Project #: Project Name: 1 Mass of Sample after Wash + Tare Wt. 37.8% #60 12.6% 0.2% Total Sample Dry Weight 161.35 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 99.8% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 2.4% 29.2% 68.3% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/18/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey sand 297.9177.57 Type:2E1 % Retained Between Sieves 100.0% 338.92 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 41.05 Position Laboratory Department Manager 2.6% 0.26 100.0% 0.425 0.250 0.850 100.0% 100.0% 4.12 24.39 68.08 27.1% 0.106 Notes / Deviations / References: #200 <0.075 #140 120.0 100.32 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 68.3%Fine Sand 29.2% x xAngular 10/18/13 12/23/13 ASTM D 422 Particle-Size Analysis of Soils 12/23/2013N. Randy Rainwater 2.6% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Gray silty, clayey sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 68.3% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 18.5 - 19.0 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 2E1 Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 2.6% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters 98.4% 0.0% 0.0% 31.7% 41.9% % Passing #200 = 0.0% 1.6% 5.5% 15.9% 58.1% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 59.44 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 Plasticity tests were not performed. Plasticity is described by visual-manual method. 3/19/2014 58.1% 12/23/13 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 55.5% 63.22 (D4318 & D2487) Amended 3/19/14 Sieve Analysis of Soils 84.1%#100 0.150 Sample Log No.: 10017 ASTM D422 94.5% Tare Wt. Depth:8.5 - 9.0 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 15.8% 10.2% Project #: Project Name: X Mass of Sample after Wash + Tare Wt. 68.3% #60 3.9% 0.0% Total Sample Dry Weight 141.91 % Passing #200 (D1140) #40 12/11/13 - 12/17/13 100.0% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 1.6% 58.1% 40.2% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/22/131.4 inch dia. tube Mass of Sample after Wash SANDY SILT (ML), gray, fine sand 119.0355.81 Type:2W2 % Retained Between Sieves 100.0% 197.72 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 78.69 Position Laboratory Department Manager 1.6% 0.05 100.0% 0.425 0.250 0.850 100.0% 100.0% 2.33 7.87 22.54 10.3% 0.106 Notes / Deviations / References: #200 <0.075 #140 63.1 44.92 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 40.2%Fine Sand Plastic Index 9 58.1% x xAngular 10/22/13 12/23/13 (D4318 & D2487) Amended 3/19/14 ASTM D422, D4318, D2487 3/19/2014N. Randy Rainwater 1.6% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o PositionTechnical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. SANDY SILT (ML), gray, fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 40.2% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 8.5 - 9.0 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 2W2 Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/11/13 - 12/17/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 1.6% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 27Plastic Limit 36 Liquid Limit 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters 97.1% 0.0% 0.0% 41.0% 51.0% % Passing #200 = 0.1% 2.9% 8.9% 23.9% 49.0% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 86.82 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 4/2/2014 49.0% 4/2/14 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 46.7% 90.69 Sieve Analysis of Soils 76.1%#100 0.150 Sample Log No.: 10017 ASTM D422 91.1% Tare Wt. Depth:12.5 - 13.5 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 17.0% 10.1% Project #: Project Name: 8253 Mass of Sample after Wash + Tare Wt. 59.0% #60 6.0% 0.1% Total Sample Dry Weight 170.10 % Passing #200 (D1140) #40 12/11/13 - 12/17/13 99.9% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 2.9% 49.0% 48.1% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/22/131.4 inch dia. tube Mass of Sample after Wash SILTY, CLAYEY SAND (SC-SM), gray, fine sand 272.39181.70 Type:2W2 % Retained Between Sieves 100.0% 351.80 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 79.41 Position Laboratory Department Manager 2.9% 0.12 100.0% 0.425 0.250 0.850 100.0% 100.0% 4.98 15.17 40.72 15.0% 0.106 Notes / Deviations / References: #200 <0.075 #140 90.63 69.67 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 48.1%Fine Sand Plasticity Index: 7 49.0% x xAngular 10/22/13 4/2/14 ASTM D422, D4318, D2487 4/2/2014N. Randy Rainwater 2.9% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o PositionTechnical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. SILTY, CLAYEY SAND (SC-SM), gray, fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 48.1% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 12.5 - 13.5 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 2W2 Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/11/13 - 12/17/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 2.9% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 19Liquid Limit: 26 Plastic Limit: 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters A B C D E ASTM D 422 Particle Size Analysis of Soils 20.5 20.0 5.93 13.519.1 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 19.8 19.8 5.93 14.0 14.0 19.7 2W2 Total Sample Oven Dried: 2 Pan #: A Boring No.: Composite Correction Time 51.48 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 39.2% 59.8% 14.5% 0.01308 0.03041 0.02085 14.5% 13.9% 0.00135 0.00649 0.01292 0.01316 0.01300 o x 98.1% #100 10.09 81.4%81.4% 18.90 65.1% Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):2.15 QB 0.00 0.00 Soil Mortar 100.0% 65.1% 15.51 71.4%71.4% 4.20 o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading Rounded Angular x o 4/8/2013ID No. oB T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter 5 15 14.0 39.5 30 60 28.019.7 32.78 Hydrometer R 92.2% 100.0% 98.1% 100.0% 99.8% Dry Wt. + A 0.10 1 min. 99.8% Water Wt. (B-C) 40 g./ Liter 49.33 6.56% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.82Assumed Specific Gravity 16.55 Sample Date: 8/12/14 #200 #140 3/4" 1/2" 1.5" #4 #20 100.0% Percent Passing 0.0130833.40 3/8" 1.02#40 #60 0.00 0.00 100.0% 14.5% 39.2% 12/17/13 - 12/18/13 Retained Wt. Percent Passing P (total) = Soft 12.7 Sample Description:0.00 18.0 - 18.5 ft 8.07 Depth: SANDY LEAN CLAY (CL), gray, fine sand 14.5% 10.8 100.0% 100.0% Pan # (washed) 10/23/13 #N/A 0.00924 100.0% #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #16595 calibrated 10/24/13; Revised the assumed specific gravity value 08/12/14 PositionTechnician Name #N/A 0.01308 4/2/14 & 8/12/14 0.01307 #10 6.10 5.93 P(-#10) = x 0.01308 Technical Responsibility 15.0 8.07 13.0% 15.0 Derek Baker 15.0 0.00317250 1440 5.76 6.27 15.1 Moisture Content 10Tare # #N/A Date References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 7.74 #N/A#N/A 13.0%7.23 15.0 Laboratory Department Manager 13.5 8.07 21.90 6.10 Dry Wt. (C-A) 14.5% 59.8% Control Cylinder Correction Factor a (Table 1): 162.76 54.15 100.0% 0.97 % Passing #10: Weight of Total Sample Air Dried: 57.70 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 173.43 0.00 Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill x o Weathered & Friable o 92.2% Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 14.5% 13.9% 13.0% S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 34 1B 173.43 Beaker #: Hydrometer Jar #: Sieve 1.0" 0.00 0.00 o x x o o Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/14 & 8/12/14 Sodium Hexametaphosphate: Liquid Limit: Description of Sand and Gravel Hard & DurableAngular 40 Rounded Silt & Clay (% Passing #200): Assumed Specific Gravity 0.0%No. 20 2.82 65.1% Maximum Particle Size: 34.9% Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 S&ME Project #: 10/23/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/17/13 - 12/18/13 14.2%Clay Plasticity Index: < 0.005 mm < 0.075 and > 0.005 mmSilt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Depth: Boring No.: 2W2 Sample Date: Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 8/12/14 Address: 18.0 - 18.5 ft Fine Sand Technical Responsibility Revised the assumed specific gravity value 08/12/14 References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit: Sample Description: SANDY LEAN CLAY (CL), gray, fine sand 1624 50.9% < 0.425 mm and > 0.075 mm (#200) Weathered & FriableSoft 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) A B C D E Sieve (D854) 1.0" 0.00 0.00 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 77.95 Beaker #: Hydrometer Jar #: Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 11.8% 10.4% 10.4% x o Weathered & Friable o 89.1% Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill Weight of Total Sample Air Dried: 57.88 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 77.95 0.00 Correction Factor a (Table 1): 75.79 56.27 100.0% 0.96 % Passing #10: 6.90 6.90 6.10 Dry Wt. (C-A) 11.8% 34.0% Control Cylinder 15.3 Laboratory Department Manager 12.0 References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 6.07 #N/A#N/A 10.4%6.07 #N/A Date Moisture Content 10Tare # Derek Baker 15.2 0.00322250 1440 5.93 5.93 15.3 0.01301 Technical Responsibility 15.2 6.90 10.4% 15.2 #10 6.10 6.10 P(-#10) = x #N/A 0.01301 4/2/2014 0.01308 #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #16595 calibrated 10/24/13 PositionTechnician Name 100.0% 100.0% Pan # (washed) 10/17/13 #N/A 0.00925 100.0% 11.8% 13.0 Sample Description:0.00 7.0 - 8.5 ft 6.90 Depth: SILTY, CLAYEY SAND (SC-SM), gray, fine sand 11.8% 11.8% 12/17/13 - 12/27/13 Retained Wt. Percent Passing P (total) = Soft 15.2 Percent Passing 0.0130119.90 3/8" 3.16#40 #60 0.00 0.00 100.0% 4/2/14 #200 #140 3/4" 1/2" 1.5" #4 #20 Amended 1/10/14 100.0% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.84Specific Gravity 16.57 Sample Date: Dry Wt. + A 0.49 1 min. 99.1% Water Wt. (B-C) 40 g./ Liter 36.08 2.87% 100.0% 94.4% 100.0% 99.1% 19.51 Hydrometer R 89.1% 5 15 13.0 26.0 30 60 13.019.5 T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter Rounded Angular x o 4/8/2013ID No. oB o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading QB 0.00 0.00 Soil Mortar 100.0% 46.3% 21.46 61.9%61.9% 6.11 Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):0.56 o x 94.4% #100 12.84 77.2%77.2% 30.22 46.3% 11.8% 10.4% 0.00133 0.00654 0.01301 0.01293 0.01301 34.0% 11.8% 0.01301 0.03320 0.02265 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 11.8% Boring No.: Composite Correction Time 36.64 6.10 13.0 13.0 19.5 2W3 Total Sample Oven Dried: 2 Pan #: A 12.020.1 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 19.5 19.5 ASTM D 422 Particle Size Analysis of Soils 19.9 19.6 6.10 o x x o oWeathered & FriableSoft Sample Description: SILTY, CLAYEY SAND (SC-SM), gray, fine sand 621 35.1% < 0.425 mm and > 0.075 mm (#200)Fine Sand Technical Responsibility References / Comments / Deviations:ASTM D422, D4318, D2487, D854 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit: Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 4/2/14 Address: 7.0 - 8.5 ftDepth: Boring No.: 2W3 Sample Date: MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Amended 1/10/14 (D854) Silt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm 11.2%Clay Plasticity Index: < 0.005 mm < 0.075 and > 0.005 mm S&ME Project #: 10/17/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/17/13 - 12/27/13 Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 Silt & Clay (% Passing #200): Specific Gravity 0.0%No. 20 2.84 46.3% Maximum Particle Size: 53.7% Liquid Limit: Description of Sand and Gravel Hard & DurableAngular 27 Rounded 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/2014 Sodium Hexametaphosphate:Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) 95.8% 0.0% 0.0% 48.8% 59.3% % Passing #200 = 0.1% 4.2% 13.6% 31.1% 40.7% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 82.72 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 Plasticity tests were not performed. Plasticity is described by visual-manual method. 4/2/2014 40.7% 4/2/14 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 33.7% 92.47 Sieve Analysis of Soils 68.9%#100 0.150 Sample Log No.: 10017 ASTM D422 86.4% Tare Wt. Depth:9.0 - 10.8 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 17.7% 10.5% Project #: Project Name: 27 Mass of Sample after Wash + Tare Wt. 51.2% #60 9.4% 0.1% Total Sample Dry Weight 139.50 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 99.9% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 4.1% 40.7% 55.1% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/17/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey fine sand 199.0106.53 Type:2W3 % Retained Between Sieves 100.0% 246.03 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 47.03 Position Laboratory Department Manager 4.2% 0.16 100.0% 0.425 0.250 0.850 100.0% 100.0% 5.85 19.00 43.38 17.5% 0.106 Notes / Deviations / References: #200 <0.075 #140 92.05 68.09 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 55.1%Fine Sand 40.7% x xAngular 10/17/13 4/2/14 ASTM D 422 Particle-Size Analysis of Soils 4/2/2014N. Randy Rainwater 4.2% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Gray silty, clayey fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 55.1% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 9.0 - 10.8 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 2W3 Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 4.2% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o 19.00 3/8" #10 3/4" 1.2% 3.60 #4 1/2" 9.50 2.000 0.106 Notes / Deviations / References: #200 <0.075 #140 84.99 61.54 Fine Sand 14.96 28.12 45.89 13.7% 0.425 0.250 0.850 97.2% 100.0% 8.8% 7.02 100.0% 44.31 Position Laboratory Department Manager 0.075 N. Randy Rainwater 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. % Retained Between Sieves 98.8% 233.90 100.0% Individual Total Sample 0.0% 0.0% 10/18/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey sand 189.6104.48 Type:2W4-C MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 mm. 25.00 4.75 2.8% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: 6.1% 41.2% 47.2% Total Sample Dry Weight 129.42 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 94.6% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 12.1% 11.2% Project #: Project Name: 30 Mass of Sample after Wash + Tare Wt. 52.4% #60 10.2% 2.6% Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 1.2% Depth:5.2 - 6.0 ft Sieve Analysis of Soils 64.5%#100 0.150 Sample Log No.: 10017 ASTM D422 78.3% Tare Wt. % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 34.2% 85.11 12/27/13 41.2% Plasticity tests were not performed. Plasticity is described by visual-manual method. 12/27/2013 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 1.6% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) 3/8" 1.6% 76.08 41.2% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 1.52 88.4% 0.0% 1.2% 47.6% 58.8% % Passing #200 = 5.4% 11.6% 21.7% 35.5% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay 3/8" Medium Sand Coarse Sand 8.8% Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #:1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Client Address: Project Name: Boring No.: 2W4-C Type: Client Name: Fort Collins, CO Sample Date: 5.2 - 6.0 ft 1.4 inch dia. tube Depth: Gray silty, clayey sandSample Description: 1.6% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 47.2% Gravel < 75 mm and > 4.75 mm (#4)Silt This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Medium Sand 1.2% Maximum Particle Size Gravel Coarse Sand Date 1.6% Rounded Hard & Durable x o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature 8.8% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand ASTM D422 Particle-Size Analysis of Soils 12/27/2013N. Randy Rainwater x xAngular 10/18/13 12/27/13 Fine Sand Silt & Clay 47.2%Fine Sand 41.2% 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o 19.00 3/8" #10 3/4" 0.0% 0.12 #4 1/2" 9.50 2.000 0.106 Notes / Deviations / References: #200 <0.075 #140 146.26 117.24 Fine Sand 22.68 44.26 80.88 18.0% 0.425 0.250 0.850 99.9% 100.0% 11.1% 2.79 100.0% 56.46 Position Laboratory Department Manager 0.075 N. Randy Rainwater 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. % Retained Between Sieves 100.0% 306.53 100.0% Individual Total Sample 0.0% 0.0% 10/18/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey sand 250.07103.37 Type:2W4-C MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 mm. 25.00 4.75 0.1% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: 9.8% 34.2% 54.7% Total Sample Dry Weight 203.16 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 98.6% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 17.9% 8.1% Project #: Project Name: 21 Mass of Sample after Wash + Tare Wt. 42.3% #60 10.6% 1.3% Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% Depth:11.3 - 12.0 ft Sieve Analysis of Soils 60.2%#100 0.150 Sample Log No.: 10017 ASTM D422 78.2% Tare Wt. % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 27.8% 146.70 12/27/13 34.2% Plasticity tests were not performed. Plasticity is described by visual-manual method. 12/27/2013 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.1% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 10 0.1% 133.74 34.2% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 88.8% 0.0% 0.0% 57.7% 65.8% % Passing #200 = 1.4% 11.2% 21.8% 39.8% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 10 Medium Sand Coarse Sand 11.1% Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #:1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Client Address: Project Name: Boring No.: 2W4-C Type: Client Name: Fort Collins, CO Sample Date: 11.3 - 12.0 ft 1.4 inch dia. tube Depth: Gray silty, clayey sandSample Description: 0.1% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 54.7% Gravel < 75 mm and > 4.75 mm (#4)Silt This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand Date 0.1% Rounded Hard & Durable x o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature 11.1% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand ASTM D422 Particle-Size Analysis of Soils 12/27/2013N. Randy Rainwater x xAngular 10/18/13 12/27/13 Fine Sand Silt & Clay 54.7%Fine Sand 34.2% 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters 95.3% 0.0% 0.0% 49.0% 57.4% % Passing #200 = 0.5% 4.7% 13.7% 32.3% 42.6% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.1% 72.60 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.1% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 4/2/2014 42.6% 4/2/14 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 39.4% 76.74 Sieve Analysis of Soils 67.7%#100 0.150 Sample Log No.: 10017 ASTM D422 86.3% Tare Wt. Depth:16.5 - 17.0 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 16.7% 8.4% Project #: Project Name: 40 Mass of Sample after Wash + Tare Wt. 51.0% #60 9.0% 0.4% Total Sample Dry Weight 126.57 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 99.5% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 4.2% 42.6% 52.6% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.1% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/18/131.4 inch dia. tube Mass of Sample after Wash SILTY, CLAYEY SAND (SC-SM), gray, fine sand 184.43107.69 Type:2W4-C % Retained Between Sieves 100.0% 234.26 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 49.83 Position Laboratory Department Manager 4.6% 0.64 100.0% 0.425 0.250 0.850 99.9% 100.0% 6.00 17.36 40.84 18.6% 0.106 Notes / Deviations / References: #200 <0.075 #140 76.4 61.98 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.14 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 52.6%Fine Sand Plastic Index 6 42.6% x xAngular 10/18/13 4/2/14 ASTM D422, D4318, D2487 4/2/2014N. Randy Rainwater 4.6% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o PositionTechnical Responsibility Signature Date 0.1% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. SILTY, CLAYEY SAND (SC-SM), gray, fine sandSample Description: 0.1% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 52.6% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 16.5 - 17.0 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 2W4-C Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 4.6% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 20Liquid Limit 26 Plastic Limit 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters A B C D E Sieve (D854) 1.0" 0.00 0.00 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 32 1B 58.66 Beaker #: Hydrometer Jar #: Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 15.4% 15.4% 14.4% x o Weathered & Friable o 99.8% Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill Weight of Total Sample Air Dried: 56.58 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 58.66 0.00 Correction Factor a (Table 1): 53.25 51.36 100.0% 0.96 % Passing #10: 8.74 25.07 5.93 Dry Wt. (C-A) 16.3% 78.6% Control Cylinder 14.9 Laboratory Department Manager 14.0 References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 8.24 #N/A#N/A 14.4%7.73 #N/A Date Moisture Content 9Tare # Derek Baker 14.9 0.00313250 1440 5.76 6.27 15.0 0.01289 Technical Responsibility 14.9 8.74 14.4% 14.9 #10 5.93 5.76 P(-#10) = x #N/A 0.01289 3/19/2014 0.01283 #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #16594 calibrated 11/12/13 PositionTechnician Name 100.0% 100.0% Pan # (washed) 10/18/13 #N/A 0.00907 100.0% 16.3% 9.4 Sample Description:0.00 13.0 - 14.0 ft 8.24 Depth: ELASTIC SILT (MH), gray 16.3% 46.9% 12/18/13 - 12/19/13 Retained Wt. Percent Passing P (total) = Soft 12.2 Percent Passing 0.0128942.07 3/8" 0.08#40 #60 0.00 0.00 100.0% 1/2/14 #200 #140 3/4" 1/2" 1.5" #4 #20 Revised 3/19/14 100.0% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.85Specific Gravity 20.57 Sample Date: Dry Wt. + A 0.00 1 min. 100.0% Water Wt. (B-C) 40 g./ Liter 22.44 10.16% 100.0% 99.8% 100.0% 100.0% 1.87 Hydrometer R 99.8% 5 15 14.0 48.0 30 60 31.020.1 T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter Rounded Angular x o 4/8/2013ID No. oB o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading QB 0.00 0.00 Soil Mortar 100.0% 97.0% 0.77 98.5%98.5% 0.12 Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):0.19 o x 99.8% #100 0.33 99.4%99.4% 1.54 97.0% 15.4% 15.4% 0.00133 0.00643 0.01281 0.01305 0.01289 78.6% 16.3% 0.01289 0.02794 0.02012 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 46.9% Boring No.: Composite Correction Time 22.63 5.76 14.5 14.5 20.1 2W6-S(2) Total Sample Oven Dried: 2 Pan #: A 14.019.1 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 20.3 20.3 ASTM D 422 Particle Size Analysis of Soils 20.6 20.4 5.76 o x x o oWeathered & FriableSoft Sample Description: ELASTIC SILT (MH), gray 3236 81.6% < 0.425 mm and > 0.075 mm (#200)Fine Sand Technical Responsibility References / Comments / Deviations:ASTM D422, D4318, D2487, D854 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 1/2/14 Address: 13.0 - 14.0 ftDepth: Boring No.: 2W6-S(2)Sample Date: MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Amended 3/19/14 (D854) Silt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm 15.4%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mm S&ME Project #: 10/18/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/18/13 - 12/19/13 Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 Silt & Clay (% Passing #200): Specific Gravity 0.0%No. 100 2.85 97.0% Maximum Particle Size: 3.0% Liquid Limit Description of Sand and Gravel Hard & DurableAngular 68 Rounded 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 3/19/2014 Sodium Hexametaphosphate:Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) A B C D E ASTM D 422 Particle Size Analysis of Soils 20.6 20.3 5.76 13.519.0 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 20.1 20.3 5.76 15.0 14.0 20.1 2W6-S(2) Total Sample Oven Dried: 2 Pan #: A Boring No.: Composite Correction Time 58.65 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 21.7% 41.5% 14.8% 0.01300 0.03251 0.02199 14.8% 13.9% 0.00135 0.00649 0.01292 0.01316 0.01300 o x 99.9% #100 6.78 87.4%87.4% 21.46 60.2% Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):1.72 QB 0.00 0.00 Soil Mortar 100.0% 60.2% 16.46 69.5%69.5% 0.45 o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading Rounded Angular x o 4/8/2013ID No. oB T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter 5 15 14.0 29.0 30 60 18.020.1 37.10 Hydrometer R 99.2% 100.0% 99.9% 100.0% 100.0% Dry Wt. + A 0.00 1 min. 100.0% Water Wt. (B-C) 40 g./ Liter 56.93 4.64% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.82Assumed Specific Gravity 19.83 Sample Date: 8/12/14 #200 #140 3/4" 1/2" 1.5" #4 #20 Amended 3/19/14 100.0% Percent Passing 0.0130023.07 3/8" 0.04#40 #60 0.00 0.00 100.0% 16.3% 21.7% 12/18/13 - 12/19/13 Retained Wt. Percent Passing P (total) = Soft 14.3 Sample Description:0.00 15.5 - 16.0 ft 8.24 Depth: SANDY SILT (ML), gray, fine sand 14.8% 12.5 100.0% 100.0% Pan # (washed) 10/18/13 0.00917 100.0% Thermometer #26495 calibrated 6/25/13, Stopwatch #16595 calibrated 10/24/13; Revised the assumed specific gravity value 08/12/14 PositionTechnician Name 0.01300 3/19/14 & 8/12/14 0.01291 #10 5.93 5.93 P(-#10) = x 0.01300 Technical Responsibility 14.8 8.24 14.9 Derek Baker 14.9 0.00317250 1440 5.76 6.27 15.1 Moisture Content 8Tare # Date References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils; Plasticity tests were not performed, plasticity is described by visual-manual method. 7.74 13.0%7.23 15.0 Laboratory Department Manager 13.5 9.07 12.07 5.93 Dry Wt. (C-A) 16.3% 41.5% Control Cylinder Correction Factor a (Table 1): 176.09 53.98 100.0% 0.97 % Passing #10: Weight of Total Sample Air Dried: 56.48 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 184.25 0.00 Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill x o Weathered & Friable o 99.2% Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 14.8% 13.9% 13.0% S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 5 1A 184.25 Beaker #: Hydrometer Jar #: Sieve (D4318, D2487) 1.0" 0.00 0.00 o x x o o Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 3/19/14 & 8/12/14 Sodium Hexametaphosphate: Liquid Limit Description of Sand and Gravel Hard & DurableAngular 37 Rounded Silt & Clay (% Passing #200): Assumed Specific Gravity 0.0%No. 60 2.82 60.2% Maximum Particle Size: 39.8% Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 S&ME Project #: 10/18/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/18/13 - 12/19/13 14.4%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mmSilt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Amended 3/19/14 (D4318, D2487) Depth: Boring No.: 2W6-S(2)Sample Date: Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 8/12/14 Address: 15.5 - 16.0 ft Fine Sand Technical Responsibility Revised the assumed specific gravity value 08/12/14 References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Description: SANDY SILT (ML), gray, fine sand 1126 45.8% < 0.425 mm and > 0.075 mm (#200) Weathered & FriableSoft 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) A B C D E Sieve (D854) 1.0" 0.00 0.00 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 34 5 81.63 Beaker #: Hydrometer Jar #: Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 11.3% 9.5% 8.6% x o Weathered & Friable o 95.6% Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill Weight of Total Sample Air Dried: 56.57 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 81.63 0.00 Correction Factor a (Table 1): 77.85 53.94 100.0% 0.98 % Passing #10: 6.24 10.07 5.93 Dry Wt. (C-A) 11.3% 25.6% Control Cylinder 15.4 Laboratory Department Manager 11.0 References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 5.24 #N/A#N/A 8.6%4.73 #N/A Date Moisture Content 100Tare # Derek Baker 15.3 0.00325250 1440 5.76 6.27 15.5 0.01318 Technical Responsibility 15.3 6.24 8.6% 15.3 #10 5.93 5.76 P(-#10) = x #N/A 0.01318 4/2/2014 0.01330 #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #18446 calibrated 11/12/13 PositionTechnician Name 100.0% 100.0% Pan # (washed) 10/18/13 #N/A 0.00940 100.0% 11.3% 14.0 Sample Description:0.00 15.5 - 16.0 ft 6.24 Depth: SANDY ELASTIC SILT (MH), gray, fine sand 11.3% 18.3% 12/18/13 - 12/19/13 Retained Wt. Percent Passing P (total) = Soft 14.6 Percent Passing 0.0131814.07 3/8" 0.43#40 #60 0.00 0.00 100.0% 4/2/14 #200 #140 3/4" 1/2" 1.5" #4 #20 Amended 3/19/14 100.0% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.77Specific Gravity 18.11 Sample Date: Dry Wt. + A 0.08 1 min. 99.9% Water Wt. (B-C) 40 g./ Liter 36.81 4.87% 100.0% 99.2% 100.0% 99.9% 18.70 Hydrometer R 95.6% 5 15 12.0 20.0 30 60 16.020.2 T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter Rounded Angular x o 4/8/2013ID No. oB o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading QB 0.00 0.00 Soil Mortar 100.0% 54.4% 19.56 63.7%63.7% 2.37 Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):0.91 o x 99.2% #100 10.33 80.9%80.9% 24.61 54.4% 11.3% 9.5% 0.00139 0.00665 0.01310 0.01334 0.01318 25.6% 11.3% 0.01318 0.03485 0.02255 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 18.3% Boring No.: Composite Correction Time 37.72 5.76 12.0 12.0 20.2 2W6-S(3) Total Sample Oven Dried: 2 Pan #: A 11.019.2 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 20.3 20.3 ASTM D 422 Particle Size Analysis of Soils 20.6 20.4 5.76 o x x o oWeathered & FriableSoft Sample Description: SANDY ELASTIC SILT (MH), gray, fine sand 2430 43.9% < 0.425 mm and > 0.075 mm (#200)Fine Sand Technical Responsibility References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 4/2/14 Address: 15.5 - 16.0 ftDepth: Boring No.: 2W6-S(3)Sample Date: MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Amended 3/19/14 (D854) Silt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm 10.5%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mm S&ME Project #: 10/18/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/18/13 - 12/19/13 Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 Silt & Clay (% Passing #200): Specific Gravity 0.0%No. 40 2.77 54.4% Maximum Particle Size: 45.6% Liquid Limit Description of Sand and Gravel Hard & DurableAngular 54 Rounded 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/2014 Sodium Hexametaphosphate:Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) B 2 hr.UD 17.0-17.5 Soaked %Yes Time % Passing #200 Au x i l i a r y Me t h o d A o r B Form No: TR-D1140-4 Material Finer than the #200 SieveRevision No. 0 Revision Date: 10/26/07 Quality AssuranceASTM D 1140Sample Log No.: 10017 Derek Baker Technician Name 2/4/2014 Date 3/13/2014 This report shall not be reproduced, except in full without the written approval of S&ME, Inc. N. Randy Rainwater DateSignature Project Manager PositionTechnical Responsibility 3/5/14 Sampling Method: Sample Date(s):Sample by: Report Date: Test Date(s): MWH Americas, Inc. 2/4/14 Boring # Sample # Client Address: Small diameter tube 10/23/14 Fort Collins, CO client S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 54.6% grams Project Name:White Mesa Mill Project #:1439-13-335 Client Name: ft 2W6-S(3)118.07 Sample Depth Dry Mass of Test Sample 7/15/134/8/13 #200 Sieve 12723 RAD Calibration Date:Balance ID. Notes / Deviations / References:ASTM D1140: Amount of Material in Soil Finer Than the No. 200 (75-um) ) Sieve 18435 Calibration Date: S&ME, Inc. - Corporate 3201 Spring Forest Road Raleigh, NC. 27616 ASTM D 1140 Wash 200, 2W6-S(3), UD, 17-18 ft.xls Page 1 of 1 29 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 0.106 Notes / Deviations / References: #200 <0.075 #140 161.39 152.03 Fine Sand 31.94 86.36 135.11 26.8% 0.425 0.250 0.850 100.0% 100.0% 17.6% 1.98 100.0% 19.89 Position Laboratory Department Manager 0.075 N. Randy Rainwater 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. % Retained Between Sieves 100.0% 279.31 100.0% Individual Total Sample 0.0% 0.0% 10/22/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey sand 259.4297.66 Type:3-4N MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: 16.5% 13.0% 69.4% Total Sample Dry Weight 181.65 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 98.9% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 9.3% 3.3% Project #: Project Name: 184 Mass of Sample after Wash + Tare Wt. 16.3% #60 30.0% 1.1% Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% Depth:6.5 - 7.0 ft Sieve Analysis of Soils 25.6%#100 0.150 Sample Log No.: 10017 ASTM D422 52.5% Tare Wt. % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 10.9% 161.76 12/27/13 13.0% Plasticity tests were not performed. Plasticity is described by visual-manual method. 12/27/2013 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 10 0.0% 157.95 13.0% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 82.4% 0.0% 0.0% 83.7% 87.0% % Passing #200 = 1.1% 17.6% 47.5% 74.4% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 10 Medium Sand Coarse Sand 17.6% Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #:1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Client Address: Project Name: Boring No.: 3-4N Type: Client Name: Fort Collins, CO Sample Date: 6.5 - 7.0 ft 1.4 inch dia. tube Depth: Gray silty, clayey sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 69.4% Gravel < 75 mm and > 4.75 mm (#4)Silt This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand Date 0.0% Rounded Hard & Durable x o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature 17.6% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand ASTM D422 Particle-Size Analysis of Soils 12/27/2013N. Randy Rainwater x xAngular 10/22/13 12/27/13 Fine Sand Silt & Clay 69.4%Fine Sand 13.0% 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters 98.3% 0.0% 0.0% 71.4% 80.4% % Passing #200 = 0.0% 1.7% 18.6% 50.7% 19.6% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 178.54 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 Plasticity tests were not performed. Plasticity is described by visual-manual method. 4/2/2014 19.6% 4/2/14 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 13.8% 191.25 Sieve Analysis of Soils 49.3%#100 0.150 Sample Log No.: 10017 ASTM D422 81.4% Tare Wt. Depth:8.5 - 9.0 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 20.7% 9.1% Project #: Project Name: 33 Mass of Sample after Wash + Tare Wt. 28.6% #60 17.0% 0.0% Total Sample Dry Weight 221.97 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 100.0% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 1.7% 19.6% 78.7% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/22/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey fine sand 296.95105.70 Type:3-4N % Retained Between Sieves 100.0% 327.67 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 30.72 Position Laboratory Department Manager 1.7% 0.06 100.0% 0.425 0.250 0.850 100.0% 100.0% 3.74 41.37 112.47 32.0% 0.106 Notes / Deviations / References: #200 <0.075 #140 190.94 158.41 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 78.7%Fine Sand 19.6% x xAngular 10/22/13 4/2/14 ASTM D422 Particle-Size Analysis of Soils 4/2/2014N. Randy Rainwater 1.7% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Gray silty, clayey fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 78.7% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 8.5 - 9.0 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 3-4N Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 1.7% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters 96.9% 0.0% 0.0% 84.2% 88.8% % Passing #200 = 0.0% 3.1% 34.4% 71.7% 11.2% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 0.0% 206.03 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 20 Plasticity tests were not performed. Plasticity is described by visual-manual method. 4/2/2014 11.2% 4/2/14 % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 9.0% 211.21 Sieve Analysis of Soils 28.3%#100 0.150 Sample Log No.: 10017 ASTM D422 65.6% Tare Wt. Depth:11.0 - 11.5 ft Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% 12.5% 4.5% Project #: Project Name: 76 Mass of Sample after Wash + Tare Wt. 15.8% #60 31.3% 0.0% Total Sample Dry Weight 232.10 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 100.0% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 3.1% 11.2% 85.7% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. 10/22/131.4 inch dia. tube Mass of Sample after Wash Gray silty, clayey fine sand 315.19103.98 Type:3-4N % Retained Between Sieves 100.0% 336.08 100.0% Individual Total Sample 0.0% 0.0% 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. N. Randy Rainwater 0.075 20.89 Position Laboratory Department Manager 3.1% 0.05 100.0% 0.425 0.250 0.850 100.0% 100.0% 7.14 79.83 166.45 37.3% 0.106 Notes / Deviations / References: #200 <0.075 #140 210.81 195.51 Fine Sand 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o Fine Sand Silt & Clay 85.7%Fine Sand 11.2% x xAngular 10/22/13 4/2/14 ASTM D422 Particle-Size Analysis of Soils 4/2/2014N. Randy Rainwater 3.1% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand o Position Plasticity tests were not performed. Plasticity is described by visual-manual method. Technical Responsibility Signature Date 0.0% Rounded Hard & Durable x Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Gray silty, clayey fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 85.7% Gravel < 75 mm and > 4.75 mm (#4)Silt Sample Date: 11.0 - 11.5 ft 1.4 inch dia. tube Depth: Client Address: Project Name: Boring No.: 3-4N Type: Client Name: Fort Collins, CO 1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #: < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 20 Medium Sand Coarse Sand 3.1% Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters x Hard & Durable x Description of Sand & Gravel Particles:Rounded oSoft Weathered & Friable o 19.00 3/8" #10 3/4" 0.0% 0.00 #4 1/2" 9.50 2.000 0.106 Notes / Deviations / References: #200 <0.075 #140 55.06 32.51 Fine Sand 0.12 1.21 14.37 10.6% 0.425 0.250 0.850 100.0% 100.0% 0.1% 0.00 100.0% 69.24 Position Laboratory Department Manager 0.075 N. Randy Rainwater 100.0% Technical Responsibility Signature Date This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. % Retained Between Sieves 100.0% 309.74 100.0% Individual Total Sample 0.0% 0.0% 10/22/131.4 inch dia. tube Mass of Sample after Wash SANDY LEAN CLAY (CL), gray, fine sand 240.50185.10 Type:3-6N MWH Americas, Inc. NA 0.0% 0.0% x Material Excluded:Particle Size Analysis / Without Hydrometer Analysis Angular Total Sample Wet Wt. + Tare Wt. Client Address: 1.0" Tare No. Boring No.: Standard Sieve Size 1.5" Sample Description: 37.50 mm. 25.00 4.75 0.0% 0.0% 12.50 0.0% 0.0% 0.0% 0.0% Form No: TR-D422-WH-1 White Mesa Mill Fort Collins, CO Mass passing #200 Report Date: Sample Date: Revision No. 0 Revision Date: 07/14/08 Client Name: 0.1% 67.4% 32.5% Total Sample Dry Weight 124.64 % Passing #200 (D1140) #40 12/18/13 - 12/19/13 100.0% Total Sample Dry Wt. + Tare Wt. 100.0% Cumulative #20 14.6% 6.6% Project #: Project Name: 16 Mass of Sample after Wash + Tare Wt. 73.9% #60 0.9% 0.0% Pan ASTM D 422 Particle-Size Analysis of Soils D2487 Medium Sand < 2.00 mm and > 0.425 mm (#40)Maximum Particle Size < 0.075 mm 0.0% Depth:6.5 - 7.0 ft Sieve Analysis of Soils 88.5%#100 0.150 Sample Log No.: 10017 ASTM D422 99.0% Tare Wt. % Passing% Retained Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 1439-13-335 Test Date(s): 55.6% 55.40 4/2/14 67.4% 4/2/2014 Gravel Coarse Sand % Silt & Clay < 75 mm and > 4.75 mm (#4) 0.0% < 0.425 mm and > 0.075 mm (#200) < 4.75 mm and >2.00 mm (#10) No. 40 0.0% 40.68 67.4% Retained Weight Cumulative 0.00 0.00 0.00 0.00 0.00 0.00 99.9% 0.0% 0.0% 26.1% 32.6% % Passing #200 = 0.0% 0.1% 1.0% 11.5% 22Liquid Limit 37 Plastic Limit Cobbles < 300 mm (12") and > 75 mm (3")Fine Sand < 0.425 mm and > 0.075 mm (#200) < 0.075 and > 0.005 mm Coarse Sand < 4.75 mm and >2.00 mm (#10)Clay No. 40 Medium Sand Coarse Sand 0.1% Quality Assurance S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 12/18/13 - 12/19/13 MWH Americas, Inc. White Mesa Mill Revision No. 0 Report Date: Test Date(s): Project #:1439-13-335 Sieve Analysis of SoilsRevision Date: 07/14/08 Sample Log No.: 10017 ASTM D422 Form No: TR-D422-WH-1Ga Client Address: Project Name: Boring No.: 3-6N Type: Client Name: Fort Collins, CO Sample Date: 6.5 - 7.0 ft 1.4 inch dia. tube Depth: SANDY LEAN CLAY (CL), gray, fine sandSample Description: 0.0% < 2.00 mm and > 0.425 mm (#40)Colloids < 0.001 mm 32.5% Gravel < 75 mm and > 4.75 mm (#4)Silt This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. Medium Sand 0.0% Maximum Particle Size Gravel Coarse Sand Date 0.0% Rounded Hard & Durable x o PositionTechnical Responsibility Signature 0.1% Weathered & Friable Notes / Deviations / References: Soft < 0.005 mm Laboratory Department Manager o Description of Sand & Gravel Particles: Medium Sand ASTM D422, D4318, D2487 4/2/2014N. Randy Rainwater x xAngular 10/22/13 4/2/14 Fine Sand Silt & Clay 32.5%Fine Sand Plastic Index 15 67.4% 3" 1.5" 1"3/4" 3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.010.101.0010.00100.00 Pe r c e n t P a s s i n g ( % ) Millimeters A B C D E Sieve 1.0" 0.00 0.00 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 32 5 177.53 Beaker #: Hydrometer Jar #: Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 12.6% 12.6% 10.4% x o Weathered & Friable o 90.6% Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill Weight of Total Sample Air Dried: 56.15 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 177.53 0.00 Correction Factor a (Table 1): 168.35 53.22 100.0% 0.97 % Passing #10: 7.90 12.90 6.10 Dry Wt. (C-A) 14.4% 52.7% Control Cylinder 15.2 Laboratory Department Manager 13.0 References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 6.90 #N/A#N/A 10.4%5.73 #N/A Date Moisture Content 19Tare # Derek Baker 15.2 0.00322250 1440 6.10 6.27 15.4 0.01308 Technical Responsibility 15.0 6.90 10.4% 15.2 #10 6.10 6.10 P(-#10) = x #N/A 0.01308 4/2/14 & 8/12/14 0.01308 #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #18446 calibrated 11/12/13; Revised the assumed specific gravity value 08/12/14 PositionTechnician Name 100.0% 100.0% Pan # (washed) 10/23/13 #N/A 0.00930 100.0% 12.6% 11.6 Sample Description:0.00 10.0 - 11.0 ft 6.90 Depth: SANDY SILT (ML), gray, fine sand 14.4% 23.5% 12/17/13 - 12/18/13 Retained Wt. Percent Passing P (total) = Soft 14.2 Percent Passing 0.0130828.90 3/8" 2.98#40 #60 0.00 0.00 100.0% 8/12/14 #200 #140 3/4" 1/2" 1.5" #4 #20 100.0% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.82Assumed Specific Gravity 16.59 Sample Date: Dry Wt. + A 1.44 1 min. 97.3% Water Wt. (B-C) 40 g./ Liter 56.97 5.50% 100.0% 94.4% 100.0% 97.3% 40.38 Hydrometer R 90.6% 5 15 13.0 35.0 30 60 19.019.7 T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter Rounded Angular x o 4/8/2013ID No. oB o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading QB 0.00 0.00 Soil Mortar 100.0% 69.3% 12.48 76.6%76.6% 5.02 Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):2.22 o x 94.4% #100 8.77 83.5%83.5% 16.33 69.3% 12.6% 12.6% 0.00136 0.00657 0.01308 0.01316 0.01308 52.7% 12.6% 0.01308 0.03143 0.02202 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 23.5% Boring No.: Composite Correction Time 59.19 6.10 14.0 13.0 19.7 3-6N Total Sample Oven Dried: 2 Pan #: A 12.019.2 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 19.6 19.7 ASTM D 422 Particle Size Analysis of Soils 19.7 19.7 6.10 o x x o oWeathered & FriableSoft Sample Description: SANDY SILT (ML), gray, fine sand 1426 56.7% < 0.425 mm and > 0.075 mm (#200)Fine Sand Technical Responsibility Revised the assumed specific gravity value 08/12/14 References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 8/12/14 Address: 10.0 - 11.0 ftDepth: Boring No.: 3-6N Sample Date: MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Silt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm 12.6%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mm S&ME Project #: 10/23/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/17/13 - 12/18/13 Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 Silt & Clay (% Passing #200): Assumed Specific Gravity 0.0%No. 10 2.82 69.3% Maximum Particle Size: 30.7% Liquid Limit Description of Sand and Gravel Hard & DurableAngular 40 Rounded 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/14 & 8/12/14 Sodium Hexametaphosphate:Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) A B C D E ASTM D 422 Particle Size Analysis of Soils 20.6 20.0 6.10 17.019.3 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:9277 19.7 19.7 5.93 18.0 18.0 19.7 3-6N Total Sample Oven Dried: 2 Pan #: A Boring No.: Composite Correction Time 50.52 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 22.7% 54.4% 20.9% 0.01297 0.03073 0.02184 19.5% 19.8% 0.00131 0.00633 0.01281 0.01305 0.01289 o x 99.6% #100 4.20 92.3%92.3% 12.12 77.8% Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):1.89 QB 0.00 0.00 Soil Mortar 100.0% 77.8% 8.31 84.8%84.8% 1.11 o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading Rounded Angular x o 4/8/2013ID No. oB T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter 5 15 17.0 37.0 30 60 19.019.7 34.14 Hydrometer R 98.0% 100.0% 99.6% 100.0% 99.9% Dry Wt. + A 0.05 1 min. 99.9% Water Wt. (B-C) 40 g./ Liter 48.63 5.54% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.85Assumed Specific Gravity 14.49 Sample Date: 8/12/14 #200 #140 3/4" 1/2" 1.5" #4 #20 100.0% Percent Passing 0.0129730.90 3/8" 0.21#40 #60 0.00 0.00 100.0% 20.9% 22.7% 12/17/13 - 12/18/13 Retained Wt. Percent Passing P (total) = Soft 14.2 Sample Description:0.00 14.5 - 15.5 ft 11.07 Depth: LEAN CLAY WITH SAND (CL), gray, fine sand 20.9% 11.2 100.0% 100.0% Pan # (washed) 10/23/13 #N/A 0.00897 100.0% #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #18446 calibrated 11/12/13; Revised the assumed specific gravity value 08/12/14 PositionTechnician Name #N/A 0.01297 4/2/14 & 8/12/14 0.01268 #10 6.10 6.10 P(-#10) = x 0.01297 Technical Responsibility 14.3 11.90 19.2% 14.3 Derek Baker 14.5 0.00308250 1440 5.76 6.10 14.5 Moisture Content 7Tare # #N/A Date References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 11.24 #N/A#N/A 19.2%10.90 14.5 Laboratory Department Manager 17.0 11.90 12.90 6.10 Dry Wt. (C-A) 20.9% 54.4% Control Cylinder Correction Factor a (Table 1): 85.78 54.57 100.0% 0.96 % Passing #10: Weight of Total Sample Air Dried: 57.59 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 90.53 0.00 Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill x o Weathered & Friable o 98.0% Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 19.5% 19.8% 19.2% S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 23 10 90.53 Beaker #: Hydrometer Jar #: Sieve 1.0" 0.00 0.00 o x x o o Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/14 & 8/12/14 Sodium Hexametaphosphate: Liquid Limit Description of Sand and Gravel Hard & DurableAngular 37 Rounded Silt & Clay (% Passing #200): Assumed Specific Gravity 0.0%No. 40 2.85 77.8% Maximum Particle Size: 22.2% Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 S&ME Project #: 10/23/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/17/13 - 12/18/13 19.7%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mmSilt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Depth: Boring No.: 3-6N Sample Date: Sample Log No.:9277 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 8/12/14 Address: 14.5 - 15.5 ft Fine Sand Technical Responsibility Revised the assumed specific gravity value 08/12/14 References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Description: LEAN CLAY WITH SAND (CL), gray, fine sand 1423 58.1% < 0.425 mm and > 0.075 mm (#200) Weathered & FriableSoft 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) A B C D E Sieve 1.0" 0.00 0.00 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Description of Sand & Gravel Particles Hard & Durable 5 1A 219.40 Beaker #: Hydrometer Jar #: Hydrometer:SO/HY-1 Cal. Date:11/22/2013ID No. 17.9% 18.3% 17.3% x o Weathered & Friable o 99.1% Project #: Project Name: Client Name: 1439-13-335 MWH Americas, Inc. White Mesa Mill Weight of Total Sample Air Dried: 57.47 Tare Wt. Weight of Air Dried Hydrometer Sample (g): Pan Tare Weight (grams): Total Sample Air Dried Wt. + tare wt. (grams): Hygroscopic 219.40 0.00 Correction Factor a (Table 1): 205.72 53.89 100.0% 0.96 % Passing #10: 11.07 12.90 6.10 Dry Wt. (C-A) 19.7% 30.1% Control Cylinder 14.6 Laboratory Department Manager 16.0 References / Comments / Deviations ASTM D 422: Particle Size Analysis of Soils 10.24 #N/A#N/A 17.3%9.73 #N/A Date Moisture Content 4Tare # Derek Baker 14.6 0.00310250 1440 5.76 6.27 14.7 0.01297 Technical Responsibility 14.5 10.07 17.3% 14.6 #10 6.10 5.93 P(-#10) = x #N/A 0.01297 4/2/14 & 8/12/14 0.01274 #N/A Thermometer #26495 calibrated 6/25/13, Stopwatch #16594 calibrated 11/12/13; Revised the assumed specific gravity value 08/12/14 PositionTechnician Name 100.0% 100.0% Pan # (washed) 10/23/13 #N/A 0.00906 100.0% 17.9% 13.5 Sample Description:0.00 17.5 - 18.5 ft 10.07 Depth: SILT WITH SAND (ML), gray, fine sand 19.7% 23.0% 12/17/13 - 12/18/13 Retained Wt. Percent Passing P (total) = Soft 14.2 Percent Passing 0.0129716.90 3/8" 0.11#40 #60 0.00 0.00 100.0% 8/12/14 #200 #140 3/4" 1/2" 1.5" #4 #20 100.0% Report Date: Test Date(s): Wet Wt. + A Address:Fort Collins, CO 2.85Assumed Specific Gravity 20.43 Sample Date: Dry Wt. + A 0.00 1 min. 100.0% Water Wt. (B-C) 40 g./ Liter 48.39 6.65% 100.0% 99.8% 100.0% 100.0% 27.96 Hydrometer R 99.1% 5 15 16.0 23.0 30 60 19.019.7 T (Min.) Corrections P x % Passing #10 L D = K HydrometerComposite Correction Diameter Rounded Angular x o 4/8/2013ID No. oB o x Dispersion Time: (R x a / W) x 100 Temp. (0.5 oC) 152H K x ((L/T)1/2Reading QB 0.00 0.00 Soil Mortar 100.0% 83.4% 4.43 91.8%91.8% 0.50 Control Cylinder Balance:Cal. Date: Stirring Apparatus: 18435 Hydrometer Sample Oven Dried (W):1.86 o x 99.8% #100 1.75 96.8%96.8% 8.94 83.4% 17.9% 18.3% 0.00132 0.00637 0.01281 0.01305 0.01289 30.1% 17.9% 0.01297 0.03373 0.02184 Effective Depth 151HType: % Moisture (100 x D/E) Table 3 Sodium Hexametaphosphate: 23.0% Boring No.: Composite Correction Time 50.25 5.93 17.0 16.0 19.7 3-6N Total Sample Oven Dried: 2 Pan #: A 16.019.2 Form No. TR-D422-2 Revision No. 0 Revision Date: 02/20/08 Sample Log No.:10017 19.8 19.8 ASTM D 422 Particle Size Analysis of Soils 20.5 20.0 5.93 o x x o oWeathered & FriableSoft Sample Description: SILT WITH SAND (ML), gray, fine sand 724 65.3% < 0.425 mm and > 0.075 mm (#200)Fine Sand Technical Responsibility Revised the assumed specific gravity value 08/12/14 References / Comments / Deviations:ASTM D422, D4318, D2487 N. Randy Rainwater Laboratory Department Manager Clay Plastic Limit Sample Log No.:10017 ASTM D422 S&ME, Inc., 1413 Topside Road, Louisville, TN 37777 Quality Assurance 8/12/14 Address: 17.5 - 18.5 ftDepth: Boring No.: 3-6N Sample Date: MWH Americas, Inc. Fort Collins, CO Report Date: Test Date(s): Silt Colloids Silt < 75 mm and > 4.75 mm (#4) < 4.75 mm and >2.00 mm (#10) < 2.00 mm and > 0.425 mm (#40)< 0.001 mm 18.1%Clay Plastic Index < 0.005 mm < 0.075 and > 0.005 mm S&ME Project #: 10/23/13 Project Name: Client Name: 1439-13-335 White Mesa Mill 12/17/13 - 12/18/13 Form No. TR-D422-3 Particle Size Analysis of SoilsRevision No. 0 Revision Date: 02/20/08 Silt & Clay (% Passing #200): Assumed Specific Gravity 0.0%No. 60 2.85 83.4% Maximum Particle Size: 16.6% Liquid Limit Description of Sand and Gravel Hard & DurableAngular 31 Rounded 1 min. Dispersing Agent: Signature Position Date 40 g./ Liter This report shall not be reproduced, except in full, without the written approval of S&ME, Inc. 4/2/14 & 8/12/14 Sodium Hexametaphosphate:Mechanical Stirring Apparatus A Dispersion Period: Cobbles Gravel Gravel: Total Sand: Coarse Sand Medium Sand < 300 mm (12") and > 75 mm (3") 1" 3/4" 1/2"3/8" #4 #10 #20 #40 #60 #100 #200 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0010.010.1110100 Pe r c e n t P a s s i n g Particle Size (mm) Report of Laboratory Testing S&ME, Inc. Project No. 1439-13-335White Mesa Mill Uranium Tailings / San Juan County, Utah April 3, 2014 Moisture Content and Unit Weight ASTM D2216 ASTM D7263 44 Materials Test Report 1413 Topside Road Louisville, Tennessee 37777 Phone: 865-970-0003 Fax: 865-970-2312 Client:MWH Americas, Inc.Technician: Derek Baker/Michael Kelso Address:Fort Collins, CO Sample Dates: October 18 – 23, 2013 S&ME Project No.: 1439-13-335 Report Date: March 31, 2014 Test Method: ASTM D7263 Laboratory Determination of Density (Unit Weight) of Soil Specimens Specimen ID: Depth (ft)MoistureContent (%)Moist Unit Wt.(pcf)Dry Unit Wt.(pcf) 2E1 13.8-14.0 24.6 124.2 99.7 18.5-19.0 25.5 123.1 98.1 27.8-28.0 15.8 122.6 105.9 2W2 8.0-8.5 32.4 123.6 93.3 8.5-9.0 33.8 117.2 87.6 12.5-13.0 30.8 117.6 89.9 13.0-13.5 31.7 117.2 89.0 18.0-18.5 29.3 108.4 83.8 18.5-19.0 34.2 106.4 79.3 2W3 6.0-6.5 25.8 119.0 94.6 7.0-8.5 33.3 121.7 91.3 9.0-10.8 27.3 120.1 94.3 16.0-18.0 31.3 Note 1 Note 1 2W4-C 5.2-6.0 13.2 129.6 114.4 8.9-9.0 21.3 118.0 97.3 11.3-12.0 29.3 124.5 96.3 14.3-14.5 26.0 Note 1 Note 1 16.5-17.0 26.3 120.4 95.3 2W6-S(2)11.5-12.0 45.3 107.2 73.8 13.0-14.0 63.8 99.9 61.0 15.0-15.5 59.0 105.4 66.3 15.5-16.0 29.7 122.8 94.6 2W6-S(3)15.5-16.0 58.9 113.6 71.5 17.5-18.0 40.7 115.7 82.2 3-4N 6.5-7.0 27.1 124.9 98.3 8.5-9.0 29.2 120.9 93.5 11.0-11.5 26.1 122.2 96.9 3-6N 6.5-7.0 31.3 103.5 78.9 10.0-10.5 38.1 107.7 78.0 10.5-11.0 47.5 118.4 80.3 14.5-15.0 35.7 109.3 80.6 15.0-15.5 49.2 107.6 72.1 17.5-18.0 39.5 116.6 83.6 18.0-18.5 40.5 113.9 81.1 Note 1: Intact unit weight could not be determined. Reviewed By: ______________________________________________ Date: 3/28/14N. Randy Rainwater 45 Report of Laboratory Testing S&ME, Inc. Project No. 1439-13-335White Mesa Mill Uranium Tailings / San Juan County, Utah April 3, 2014 Hydraulic Conductivity ASTM D5084 46 Materials Using a Flexible Wall Permeameter ASTM D 2216: Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass Project Manager 1.44E-06 1.48E-0612.00 42.4 41.3 7.69 7.49 1.55E-06 44.4 Cell Pressure (psi): Position: 17:00 18:15 4500 21.7 21.7 21.7 14:30 15:45 Burette Area (cm2):0.970 Time (24-hr) Start End 13:15 14:30 4500 Time (sec) 4500 N. Randy Rainwater 11.50 17.950.9601 18.50 21.7 21.7 0.9612 hout1 Temperature (oC) Initial Final Ave. 21.521.4 21.6 Factor 20.00 Test Date(s):Project #: Project Name: 0.510 Area (cm2) Length (cm): Diameter (cm): 5.83 3.65 Test Parameters: 110.4 83.5 Porosity:Dry Weight (grams) Wet weight (grams) 32.2Percent Moisture: Effective Consolidation Stress (psi): Report Date: 3/19/14 Dry Density (PCF): Wet Density (PCF): 95.1 Final Specimen Conditions 129.6 Panel ID: No. 20 1.4 in. dia. Tube 100.0 Plastic Limit: 5.51 3.56 58.1 36 Specific Gravity: 2.80Liquid Limit: Volume (cm3) Dry Density (PCF): Area (cm2) 27 Plastic Index: Wet Density (PCF): Void Ratio: 86.5Percent Saturation:10.44 60.90 1.042 0.9647 113.8 83.5 hin1 60.0 8.25 hout2 hin2 8.06 h1 10.00 45.5 Corrected K-Value 59.5 K-Value (cm/sec) Effluent Pressure (psi) Final Gradient Uncorrected K-Value Initial Gradient Dry Weight (grams) 36.3 0.838 Porosity:0.456 Void Ratio: Volume (cm3)54.80 Deaired WaterPermeant Liquid Used: 19.50 10.50 Measurements Wet weight (grams) Percent Moisture: 21.6 21.6 19.0019.50 10.5021.6 0.9624 5.0 65.0 Influent Pressure (psi): 11.5011.00 11.00 44.4 h2 43.4 Percent Saturation: Percent Passing #200: 85.6 Length (cm): Diameter (cm): 9.94 Log #:10017 113.1 Sample Type: Initial Specimen Conditions 9 Maximum Particle Size: Laboratory Record Version 4.1 Client Address: Client Name: Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (Method "C") 9463 White Mesa Mill 1/25/14 - 2/10/20141439-13-335 Boring #:Depth: 7.5 - 8.0 ft MWH Americas, Inc. Fort Collins, CO 2W2 Sample Date: 10/23/2013 1.4E-06 1.32E-06 43.4 1.35E-06 1.38E-06 1.40E-06 1.44E-0642.4 7.87 8.06 7.87 7.69 1.37E-06 19.00 18.50 References: Notes: 15:45 17:00 4500 21.6 Averages: Technician: Technical Responsibility: Michael Kelso signature Sample Description: SANDY SILT (ML), gray, fine sand 7.787.97 ASTM D 5084: Measurement of Hydraulic Conductivity of Saturated Porous 1.0E-06 1.5E-06 2.0E-06 2.5E-06 3.0E-06 4000 6000 8000 10000 12000 14000 16000 18000 20000 K- V a l u e Cumulative Time (sec.) Conductivity vs. Time Materials Using a Flexible Wall Permeameter ASTM D 2216: Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass Sample Description: SILTY, CLAYEY SAND (SC-SM), gray, fine sand 11.1611.45 ASTM D 5084: Measurement of Hydraulic Conductivity of Saturated Porous Averages: Technician: Technical Responsibility: Michael Kelso signature 3:16 3:36 1200 21.7 Revised 1/10/14 with Specific Gravity value per D854. 11.30 11.59 11.30 11.01 3.30E-06 14.50 14.00 References: Notes: 40.4 3.10E-06 3.33E-06 3.22E-06 3.47E-0639.3 3.3E-06 10/17/2013 1439-13-335 Boring #:Depth: 7.0 - 8.5 ft MWH Americas, Inc. Fort Collins, CO 2W3 Sample Date: Laboratory Record Version 4.1 Client Address: Client Name: Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (Method "C") 16019 White Mesa 12/13/13-12/18/13 Log #:10017 120.1 Sample Type: Initial Specimen Conditions 6 Maximum Particle Size: Percent Saturation: Percent Passing #200: 89.2 Length (cm): Diameter (cm): 10.74 5.0 75.5 Influent Pressure (psi): 10.009.50 9.50 41.4 h2 40.4 21.7 21.7 14.5015.00 9.0021.7 0.9607 Volume (cm3)38.34 Deaired WaterPermeant Liquid Used: 15.00 9.00 Measurements Wet weight (grams) Percent Moisture: Dry Weight (grams) 31.7 0.842 Porosity:0.457 Void Ratio: 8.50 42.4 Corrected K-Value 70.0 K-Value (cm/sec) Effluent Pressure (psi) Final Gradient Uncorrected K-Value Initial Gradient 3.17E-060.9618 77.9 59.1 hin1 70.5 11.89 hout2 hin2 11.59 h1 Void Ratio: 99.6Percent Saturation:9.83 41.36 0.986 Specific Gravity: 2.84Liquid Limit: Volume (cm3) Dry Density (PCF): Area (cm2) 21 Plastic Index: Wet Density (PCF): No. 20 1.4 in. dia. Tube 0.95 100.0 Plastic Limit: 3.57 3.70 46.3 27 Effective Consolidation Stress (psi): Report Date: 4/2/14 Dry Density (PCF): Wet Density (PCF): 96.3 Final Specimen Conditions 126.8 Panel ID: 3.54 B-Parameter: Test Parameters: 79.6 59.1 Porosity:Dry Weight (grams) Wet weight (grams) 34.6Percent Moisture: Factor 15.50 Test Date(s):Project #: Project Name: 0.497 Area (cm2) Length (cm): Diameter (cm): 4.21 21.7 0.9601 hout1 Temperature (oC) Initial Final Ave. 21.621.6 21.71200 Time (sec) 1260 N. Randy Rainwater 10.00 13.500.9601 14.00 21.7 21.7 2:55 3:16 Burette Area (cm2):0.960 Time (24-hr) Start End 2:35 2:55 41.4 Cell Pressure (psi): Position: 3:36 3:56 1200 21.7 21.7 10.50 39.3 38.3 11.01 10.72 3.56E-06 Laboratory Department Manager 3.39E-06 3.42E-06 1.0E-06 2.0E-06 3.0E-06 4.0E-06 1000 2000 3000 4000 5000 K- V a l u e Cumulative Time (sec.) Conductivity vs. Time Materials Using a Flexible Wall Permeameter ASTM D 2216: Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass Averages: Technician: Technical Responsibility: Michael Kelso 115.720.70 20.55 References: Notes: 16:56 17:56 3600 115.3 25.18 25.26 25.18 25.10 1.68E-07 115.7 1.89E-07 1.69E-07 1.97E-07 1.76E-07 1.60E-07 1.7E-07 1.62E-07 10/23/2013 1439-13-335 Boring #:Depth: 13.0 - 13.5 ft MWH Americas, Inc. Fort Collins, CO 2W6-S(2) Sample Date: Laboratory Record Version 4.1 Client Address: Client Name: Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (Method "C") 16024 White Mesa Mill 2/12/14 - 2/20/14 Log #:10017 105.1 Sample Type: Initial Specimen Conditions 32 Maximum Particle Size: Percent Saturation: Percent Passing #200: 64.6 Length (cm): Diameter (cm): 9.82 Percent Moisture: 10.0 71.0 Influent Pressure (psi): 11.5011.30 20.70 11.3020.85 21.6 22.0 21.8 0.9578 22.0 21.6 11.1521.8 0.9578 Volume (cm3)45.11 Deaired WaterPermeant Liquid Used: 20.85 11.15 Measurements Initial Gradient 1.59E-07 Wet weight (grams) Dry Weight (grams) 60.0 1.466 Porosity:0.594 Void Ratio: h2 11.00 116.4 Corrected K-Value 59.5 K-Value (cm/sec) Effluent Pressure (psi) Final Gradient Uncorrected K-Value 83.4 52.1 hin1 61.0 25.33 hout2 hin2 25.26 h1 116.0 Void Ratio: 100.0Percent Saturation:10.28 50.38 1.754 Liquid Limit: Volume (cm3) Dry Density (PCF): Area (cm2) 36 Plastic Index: Wet Density (PCF): 100.0 Plastic Limit: 4.59 3.54 97.0 68 Specific Gravity: 2.85 Report Date: 3/19/14 Dry Density (PCF): Wet Density (PCF): 72.1 Final Specimen Conditions 115.4 Panel ID: No. 100 1.4 in. dia. Tube Test Parameters: 84.8 52.1 Porosity:Dry Weight (grams) Wet weight (grams) 62.7Percent Moisture: Effective Consolidation Stress (psi): Test Date(s):Project #: Project Name: 0.637 Area (cm2) Length (cm): Diameter (cm): 4.90 3.62 Temperature (oC) Initial Final Ave. 22.523.0 22.0 Factor 0.9421 Time (sec) 3600 N. Randy Rainwater 11.50 20.300.9443 20.55 hout1 21.00 15:56 16:56 Burette Area (cm2):0.920 Time (24-hr) Start End 14:56 15:56 3600 Position: 17:56 19:26 5400 22.0 22.8 22.4 25.1325.22 ASTM D 5084: Measurement of Hydraulic Conductivity of Saturated Porous signature 11.70 115.3 114.8 25.10 24.99 1.70E-07 116.0 Sample Description: ELASTIC SILT (MH), gray Project Manager Cell Pressure (psi): 1.0E-07 1.5E-07 2.0E-07 2.5E-07 3.0E-07 2000 4000 6000 8000 10000 12000 14000 16000 18000 K- V a l u e Cumulative Time (sec.) Conductivity vs. Time Materials Using a Flexible Wall Permeameter ASTM D 2216: Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass Sample Description: SANDY ELASTIC SILT (MH), gray, fine sand Project Manager Cell Pressure (psi): signature 30.60 150.0 149.7 25.56 25.51 1.70E-07 150.6 Position: 16:07 17:07 3600 23.3 23.4 23.4 25.5825.64 ASTM D 5084: Measurement of Hydraulic Conductivity of Saturated Porous 14:07 15:07 Burette Area (cm2):0.970 Time (24-hr) Start End 13:07 14:07 3600 Time (sec) 3600 N. Randy Rainwater 30.45 39.400.9236 39.55 hout1 40.00 Temperature (oC) Initial Final Ave. 23.022.9 23.0 Factor 0.9322 Test Date(s):Project #: Project Name: 0.664 Area (cm2) Length (cm): Diameter (cm): 6.08 3.64 Test Parameters: 98.4 58.9 Porosity:Dry Weight (grams) Wet weight (grams) 67.1Percent Moisture: Effective Consolidation Stress (psi): Report Date: 4/2/14 Dry Density (PCF): Wet Density (PCF): 65.3 Final Specimen Conditions 109.0 Panel ID: No. 40 1.4 in. dia. Tube 100.0 Plastic Limit: 5.87 3.50 54.4 54 Specific Gravity: 2.77Liquid Limit: Volume (cm3) Dry Density (PCF): Area (cm2) 30 Plastic Index: Wet Density (PCF): Void Ratio: 94.1Percent Saturation:10.40 63.26 1.976 98.4 58.9 hin1 61.0 25.72 hout2 hin2 25.66 h1 150.6 h2 30.00 150.9 Corrected K-Value 59.0 K-Value (cm/sec) Effluent Pressure (psi) Final Gradient Uncorrected K-Value Initial Gradient 1.57E-07 Wet weight (grams) Dry Weight (grams) 67.1 1.650 Porosity:0.623 Void Ratio: 30.1523.1 0.9301 Volume (cm3)56.33 Deaired WaterPermeant Liquid Used: 39.85 30.15 Measurements 23.1 23.3 23.2 0.9268 23.0 23.1 Percent Moisture: 12.0 73.0 Influent Pressure (psi): 30.4530.30 39.70 30.3039.85 Percent Saturation: Percent Passing #200: 58.1 Length (cm): Diameter (cm): 9.60 Log #:10017 97.1 Sample Type: Initial Specimen Conditions 24 Maximum Particle Size: Laboratory Record Version 4.1 Client Address: Client Name: Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (Method "C") 9463 White Mesa Mill 2/12/14 - 2/20/141439-13-335 Boring #:Depth: 15.0 - 15.5 ft MWH Americas, Inc. Fort Collins, CO 2W6-S(3) Sample Date: 10/18/2013 1.6E-07 1.57E-07 1.57E-07 1.69E-07 1.70E-07 1.69E-07 1.57E-07 25.61 25.66 25.61 25.56 1.69E-07 150.3 150.339.70 39.55 References: Notes: 15:07 16:07 3600 150.0 Averages: Technician: Technical Responsibility: Michael Kelso 1.0E-07 2.0E-07 3.0E-07 4.0E-07 2000 4000 6000 8000 10000 12000 14000 16000 18000 K- V a l u e Cumulative Time (sec.) Conductivity vs. Time Materials Using a Flexible Wall Permeameter ASTM D 2216: Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass Sample Description: SANDY LEAN CLAY (CL), gray Project Manager Cell Pressure (psi): signature 14.55 39.2 37.5 7.41 7.09 1.00E-05 41.6 Position: 10:32 10:50 1080 22.4 22.5 22.5 7.507.76 ASTM D 5084: Measurement of Hydraulic Conductivity of Saturated Porous 10:08 10:20 Burette Area (cm2):0.920 Time (24-hr) Start End 9:56 10:08 720 Time (sec) 720 N. Randy Rainwater 13.80 16.700.9432 17.50 hout1 19.20 Temperature (oC) Initial Final Ave. 22.622.8 22.4 Factor 0.9399 Test Date(s):Project #: Project Name: 0.531 Area (cm2) Length (cm): Diameter (cm): 5.72 3.57 Test Parameters: 104.1 76.6 Porosity:Dry Weight (grams) Wet weight (grams) 35.9Percent Moisture: Effective Consolidation Stress (psi): Report Date: 3/19/14 Dry Density (PCF): Wet Density (PCF): 91.3 Final Specimen Conditions 130.8 Panel ID: No. 40 1.4 in. dia. Tube 100.0 Plastic Limit: 5.29 3.55 67.4 37 Specific Gravity: 2.86Liquid Limit: Volume (cm3) Dry Density (PCF): Area (cm2) 22 Plastic Index: Wet Density (PCF): Void Ratio: 90.7Percent Saturation:9.99 57.12 1.132 109.8 76.6 hin1 60.5 8.13 hout2 hin2 7.86 h1 41.6 h2 12.00 43.0 Corrected K-Value 60.0 K-Value (cm/sec) Effluent Pressure (psi) Final Gradient Uncorrected K-Value Initial Gradient 1.07E-05 Wet weight (grams) Dry Weight (grams) 43.3 0.956 Porosity:0.489 Void Ratio: 12.7022.4 0.9443 Volume (cm3)52.38 Deaired WaterPermeant Liquid Used: 18.60 12.70 Measurements 22.4 22.4 22.4 0.9443 22.4 22.4 Percent Moisture: 5.0 65.5 Influent Pressure (psi): 13.8013.25 18.00 13.2518.60 Percent Saturation: Percent Passing #200: 83.7 Length (cm): Diameter (cm): 9.90 Log #:10017 113.8 Sample Type: Initial Specimen Conditions 15 Maximum Particle Size: Laboratory Record Version 4.1 Client Address: Client Name: Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (Method "C") 16024 White Mesa Mill 2/22/14 - 3/11/141439-13-335 Boring #:Depth: 6.0 - 6.5 ft MWH Americas, Inc. Fort Collins, CO 3-6N Sample Date: 10/22/2013 9.8E-06 9.86E-06 9.28E-06 1.04E-05 9.82E-06 1.04E-05 9.46E-06 7.62 7.86 7.62 7.41 1.14E-05 40.3 40.318.00 17.50 References: Notes: 10:20 10:32 720 39.2 Averages: Technician: Technical Responsibility: Michael Kelso 8.0E-061.0E-051.2E-051.4E-051.6E-051.8E-052.0E-05 600 1100 1600 2100 2600 3100 K- V a l u e Cumulative Time (sec.) Conductivity vs. Time Report of Laboratory Testing S&ME, Inc. Project No. 1439-13-335White Mesa Mill Uranium Tailings / San Juan County, Utah April 3, 2014 One-Dimensional Consolidation and Soil Specific Gravity ASTM D2435 ASTM D854 52 Title: Checked By: Project: Remarks:Client:Project No. Condition of Test: Preparation Process: AASHTOUSCSMATERIAL DESCRIPTION %Method Swell Press.D2435 FinalInit.FinalInit.FinalInit.FinalInit.Gr.CcPcVoid RatioSaturationMoistureOverburdenSp.PILL CONSOLIDATION TEST REPORT ASTM D2435 0.780 0.820 0.860 0.900 0.940 0.980 1.020 1.060 1.100 1.140 1.180 Vo i d R a t i o .1 .2 .5 1 2 5 10 20.005 .030 .055 .080 .105 .130 Cv (f t . 2/d a y ) Applied Pressure - ksf Figure S & ME, INC. Louisville, TN Location: 2W2, 7.5-8 ft 1 Project Manager NRR, 3/19/14 1.4 inch diameter specimen per client's request. White Mesa Mill MWH Americas, Inc.1439-13-335 0.01BInundated in seat load Trimming not required 0.241.660.8061.168100.0 %72.9 %29.0 %30.4 %96.289.92.80936 Sandy MLSANDY SILT (ML), gray, fine sand (ksf) SwellCr (ksf)(ksf) Dry Dens. (pcf) The client is responsible for interpreting the test data as provided by S&ME, Inc. 53 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.10 ft.2/day T90 D90 Location: 2W2, 7.5-8 ft 2 19.69 min. 0.04150 0.04089 0.03534 1.67 ksf 4 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .033 .035 .037 .039 .041 .043 .045 .047 .049 .051 .053 t90 FigureS & ME, Inc. Cv @ T90 0.05 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W2, 7.5-8 ft 37.22 min. 0.06930 0.06832 0.05957 3.26 ksf 5 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .055 .058 .061 .064 .067 .070 .073 .076 .079 .082 .085 t90 54 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.04 ft.2/day T90 D90 Location: 2W2, 7.5-8 ft 3 46.90 min. 0.09600 0.09489 0.08487 6.45 ksf 6 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .080 .084 .088 .092 .096 .100 .104 .108 .112 .116 .120 t90 FigureS & ME, Inc. Cv @ T90 0.03 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W2, 7.5-8 ft 52.41 min. 0.12849 0.12741 0.11771 12.83 ksf 7 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .113 .117 .121 .125 .129 .133 .137 .141 .145 .149 .153 t90 55 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.05 ft.2/day T90 D90 Location: 2W2, 7.5-8 ft 4 27.42 min. 0.15693 0.15587 0.14629 25.62 ksf 8 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .142 .146 .150 .154 .158 .162 .166 .170 .174 .178 .182 t90 FigureS & ME, Inc. 56 CONSOLIDATION TEST DATA Client: MWH Americas, Inc. Project: White Mesa Mill Project Number: 1439-13-335 Sample Data Source: Sample No.: 10017 Depth: 7.5 - 8.0 ft Sample Length(in./cm.): Location: 2W2, 7.5-8 ft Description: SANDY SILT (ML), gray, fine sand Sample Date: 10/22/14 Liquid Limit: 36 Plasticity Index: 9 USCS: Sandy ML AASHTO: Preparation Process: Trimming not required Condition of Test: Inundated in seat load Test Method: B Final Density: 96.2 Figure No.: 1 Testing Remarks: 1.4 inch diameter specimen per client's request. Tested By: DB & MDK Test Date: 1/22/14-2/10/14 Checked By: NRR, 3/19/14 Title: Project Manager Test Specimen Data TOTAL SAMPLE BEFORE TEST AFTER TEST Wet w+t = 47.93 g.Consolidometer # = 4 Wet w+t = 58.58 g. Dry w+t = 40.97 g.Dry w+t = 49.14 g. Tare Wt. = 18.09 g.Spec. Gravity = 2.80 Tare Wt. = 16.55 g. Height = 1.00 in.Height = 1.00 in. Diameter = 1.40 in.Diameter = 1.40 in. Weight = 47.42 g.Defl. Table = 143913335, #20984 Moisture = 30.4 %Ht. Solids = 0.4614 in.Moisture = 29.0 % Wet Den. = 117.3 pcf Dry Wt. = 36.36 g. Dry Wt. = 32.59 g.* Dry Den. = 89.9 pcf Void Ratio = 1.168 Void Ratio = 0.806 Saturation = 72.9 % * Final dry weight used in calculations End-of-Load Summary Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv (ft.2/day) C Void Ratio % Compression /Swell start 0.00000 1.168 0.19 0.00450 0.00000 1.159 0.4 Comprs. 0.44 0.01600 0.00010 1.134 1.6 Comprs. 0.88 0.03080 0.00030 1.102 3.0 Comprs. 1.67 0.04830 0.00060 0.10 1.065 4.8 Comprs. 3.26 0.08290 0.00120 0.05 0.991 8.2 Comprs. 6.45 0.11470 0.00330 0.04 0.927 11.1 Comprs. 12.83 0.14720 0.00520 0.03 0.861 14.2 Comprs. 25.62 0.18310 0.00650 0.05 0.786 17.7 Comprs. 6.45 0.18010 0.00540 0.790 17.5 Comprs. S & ME, Inc. The client is responsible for interpreting the test data as provided by S&ME, Inc. 57 Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv(ft.2/day) C Void Ratio % Compression /Swell 1.67 0.17590 0.00420 0.796 17.2 Comprs. 0.44 0.17110 0.00370 0.806 16.7 Comprs. Cc = 0.24 Pc = 1.66 ksf Cr = 0.01 TEST READINGSPressure: 0.19 ksf Load No. 1 No. Elapsed Dial Time Reading 1 0.00 0.00000 2 0.10 0.00060 3 0.25 0.00080 4 0.50 0.00100 5 1.00 0.00120 6 2.00 0.00140 7 4.00 0.00160 8 8.00 0.00200 9 15.00 0.00230 10 30.00 0.00250 No. Elapsed Dial Time Reading 11 60.00 0.00290 12 120.00 0.00320 13 240.00 0.00350 14 480.00 0.00390 15 1440.00 0.00450 Void Ratio = 1.159 Compression = 0.4 % TEST READINGSPressure: 0.44 ksf Load No. 2 No. Elapsed Dial Time Reading 1 0.00 0.00450 2 0.10 0.00750 3 0.25 0.00810 4 0.50 0.00860 5 1.00 0.00900 6 2.00 0.00940 7 4.00 0.00990 8 8.00 0.01040 9 15.00 0.01090 10 30.00 0.01150 No. Elapsed Dial Time Reading 11 60.00 0.01220 12 120.00 0.01290 13 240.00 0.01360 14 480.00 0.01440 15 1440.00 0.01540 16 2488.80 0.01600 Void Ratio = 1.134 Compression = 1.6 % S & ME, Inc. 58 TEST READINGSPressure: 0.88 ksf Load No. 3 No. Elapsed Dial Time Reading 1 0.00 0.01600 2 0.10 0.01970 3 0.25 0.02010 4 0.50 0.02050 5 1.00 0.02120 6 2.00 0.02140 7 4.00 0.02200 8 8.00 0.02260 9 15.00 0.02320 10 30.00 0.02400 No. Elapsed Dial Time Reading 11 60.00 0.02480 12 120.00 0.02590 13 240.00 0.02700 14 480.00 0.02800 15 1440.00 0.02980 16 2880.00 0.03080 Void Ratio = 1.102 Compression = 3.0 % TEST READINGSPressure: 1.67 ksf Load No. 4 No. Elapsed Dial Time Reading 1 0.00 0.03080 2 0.10 0.03600 3 0.25 0.03650 4 0.50 0.03700 5 1.00 0.03750 6 2.00 0.03820 7 4.00 0.03920 8 8.00 0.04020 9 15.00 0.04110 10 30.00 0.04220 No. Elapsed Dial Time Reading 11 60.00 0.04340 12 120.00 0.04480 13 240.00 0.04640 14 480.00 0.04820 15 1440.00 0.04830 Void Ratio = 1.065 Compression = 4.8 % D0 = 0.03534 D90 = 0.04089 D100 = 0.04150 Cv at 19.7 min. = 0.10 ft.2/day TEST READINGSPressure: 3.26 ksf Load No. 5 No. Elapsed Dial Time Reading 1 0.00 0.04830 2 0.10 0.05980 3 0.25 0.06150 4 0.50 0.06200 5 1.00 0.06280 6 2.00 0.06360 7 4.00 0.06470 8 8.00 0.06600 9 15.00 0.06740 10 30.00 0.06900 No. Elapsed Dial Time Reading 11 60.00 0.07090 12 120.00 0.07270 13 240.00 0.07500 14 1440.00 0.08080 15 2880.00 0.08290 Void Ratio = 0.991 Compression = 8.2 % D0 = 0.05957 D90 = 0.06832 D100 = 0.06930 Cv at 37.2 min. = 0.05 ft.2/day S & ME, Inc. 59 TEST READINGSPressure: 6.45 ksf Load No. 6 No. Elapsed Dial Time Reading 1 0.00 0.08290 2 0.10 0.08800 3 0.25 0.08870 4 0.50 0.08920 5 1.00 0.09000 6 2.00 0.09100 7 4.00 0.09210 8 8.00 0.09340 9 15.00 0.09480 10 30.00 0.09680 No. Elapsed Dial Time Reading 11 60.00 0.09910 12 120.00 0.10160 13 240.00 0.10430 14 480.00 0.10870 15 1380.00 0.11180 16 1802.00 0.11310 17 2639.00 0.11470 Void Ratio = 0.927 Compression = 11.1 % D0 = 0.08487 D90 = 0.09489 D100 = 0.09600 Cv at 46.9 min. = 0.04 ft.2/day TEST READINGSPressure: 12.83 ksf Load No. 7 No. Elapsed Dial Time Reading 1 0.00 0.11820 2 0.10 0.12290 3 0.25 0.12340 4 0.50 0.12390 5 1.00 0.12460 6 2.00 0.12540 7 4.00 0.12640 8 8.00 0.12760 9 15.00 0.12900 10 30.00 0.13090 No. Elapsed Dial Time Reading 11 60.00 0.13310 12 120.00 0.13570 13 284.00 0.13950 14 415.00 0.14140 15 1407.00 0.14720 Void Ratio = 0.861 Compression = 14.2 % D0 = 0.11771 D90 = 0.12741 D100 = 0.12849 Cv at 52.4 min. = 0.03 ft.2/day TEST READINGSPressure: 25.62 ksf Load No. 8 No. Elapsed Dial Time Reading 1 0.00 0.14720 2 0.10 0.15300 3 0.25 0.15360 4 0.50 0.15430 5 1.00 0.15510 6 2.00 0.15610 7 4.00 0.15740 8 8.00 0.15890 9 15.00 0.16050 10 30.00 0.16270 No. Elapsed Dial Time Reading 11 60.00 0.16550 12 120.00 0.16900 13 214.00 0.17200 14 480.00 0.17690 15 1380.00 0.18310 Void Ratio = 0.786 Compression = 17.7 % D0 = 0.14629 D90 = 0.15587 D100 = 0.15693 Cv at 27.4 min. = 0.05 ft.2/day S & ME, Inc. 60 TEST READINGSPressure: 6.45 ksf Load No. 9 No. Elapsed Dial Time Reading 1 0.00 0.18310 2 0.10 0.18060 3 0.25 0.18060 4 0.50 0.18050 5 1.00 0.18050 6 2.00 0.18050 7 4.00 0.18040 8 8.00 0.18040 9 15.00 0.18030 10 30.00 0.18030 No. Elapsed Dial Time Reading 11 60.00 0.18020 12 120.00 0.18020 13 240.00 0.18010 14 480.00 0.18010 15 1280.00 0.18010 Void Ratio = 0.790 Compression = 17.5 % TEST READINGSPressure: 1.67 ksf Load No. 10 No. Elapsed Dial Time Reading 1 0.00 0.18010 2 0.10 0.17770 3 0.25 0.17760 4 0.50 0.17750 5 1.00 0.17740 6 2.00 0.17720 7 4.00 0.17710 8 8.00 0.17690 9 15.00 0.17680 10 30.00 0.17660 No. Elapsed Dial Time Reading 11 60.00 0.17650 12 120.00 0.17630 13 240.00 0.17620 14 480.00 0.17600 15 1440.00 0.17590 Void Ratio = 0.796 Compression = 17.2 % TEST READINGSPressure: 0.44 ksf Load No. 11 No. Elapsed Dial Time Reading 1 0.00 0.17590 2 0.10 0.17440 3 0.25 0.17430 4 0.50 0.17410 5 1.00 0.17400 6 2.00 0.17380 7 4.00 0.17360 8 8.00 0.17330 9 15.00 0.17300 10 30.00 0.17270 No. Elapsed Dial Time Reading 11 60.00 0.17240 12 120.00 0.17210 13 240.00 0.17180 14 480.00 0.17140 15 1410.00 0.17110 Void Ratio = 0.806 Compression = 16.7 % S & ME, Inc. 61 Title: Checked By: Project: Remarks:Client:Project No. Condition of Test: Preparation Process: AASHTOUSCSMATERIAL DESCRIPTION %Method Swell Press.D2435 FinalInit.FinalInit.FinalInit.FinalInit.Gr.CcPcVoid RatioSaturationMoistureOverburdenSp.PILL CONSOLIDATION TEST REPORT ASTM D2435 .680 .700 .720 .740 .760 .780 .800 .820 .840 .860 .880 Vo i d R a t i o .1 .2 .5 1 2 5 10 20.00 .04 .08 .12 .16 .20 Cv (f t . 2/d a y ) Applied Pressure - ksf Figure S & ME, INC. Louisville, TN Location: 2W3, 7-8.5 ft 1 Lab Dept Manager NRR, 3/28/14 1.4 inch diameter specimen per client's request. White Mesa Mill MWH Americas, Inc.1439-13-335 0.01BInundated in seat load Trimming not required 0.113.420.7070.87793.1 %102.0 %23.2 %31.5 %103.793.22.84627 NASC-SMSILTY, CLAYEY SAND (SC-SM), gray, fine sand (ksf) SwellCr (ksf)(ksf) Dry Dens. (pcf) The client is responsible for interpreting the test data as provided by S&ME, Inc. 62 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.02 ft.2/day T90 D90 Location: 2W3, 7-8.5 ft 2 98.13 min. 0.01541 0.01517 0.01304 0.88 ksf 3 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .01225 .01300 .01375 .01450 .01525 .01600 .01675 .01750 .01825 .01900 .01975 t90 FigureS & ME, Inc. Cv @ T90 0.07 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W3, 7-8.5 ft 30.85 min. 0.02020 0.01997 0.01784 1.67 ksf 4 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .016 .017 .018 .019 .020 .021 .022 .023 .024 .025 .026 t90 63 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.13 ft.2/day T90 D90 Location: 2W3, 7-8.5 ft 3 15.44 min. 0.02941 0.02917 0.02706 3.26 ksf 5 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .02499 .02624 .02749 .02874 .02999 .03124 .03249 .03374 .03499 .03624 .03749 t90 FigureS & ME, Inc. Cv @ T90 0.04 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W3, 7-8.5 ft 46.32 min. 0.04287 0.04251 0.03931 6.45 ksf 6 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.00 12.50 25.00 37.50 50.00 62.50 75.00 87.50 100.00 112.50 125.00 .037 .039 .041 .043 .045 .047 .049 .051 .053 .055 .057 t90 64 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.07 ft.2/day T90 D90 Location: 2W3, 7-8.5 ft 4 25.74 min. 0.05850 0.05820 0.05553 12.83 ksf 7 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 10 20 30 40 50 60 70 80 90 100 .053 .055 .057 .059 .061 .063 .065 .067 .069 .071 .073 t90 FigureS & ME, Inc. Cv @ T90 0.17 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W3, 7-8.5 ft 10.58 min. 0.08337 0.08292 0.07888 38.50 ksf 8 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .078 .080 .082 .084 .086 .088 .090 .092 .094 .096 .098 t90 65 CONSOLIDATION TEST DATA Client: MWH Americas, Inc. Project: White Mesa Mill Project Number: 1439-13-335 Sample Data Source: Sample No.: 10017 Depth: 7.0 - 8.5 ft Sample Length(in./cm.): Location: 2W3, 7-8.5 ft Description: SILTY, CLAYEY SAND (SC-SM), gray, fine sand Sample Date: 10/21/13 Liquid Limit: 27 Plasticity Index: 6 USCS: SC-SM AASHTO: NA Preparation Process: Trimming not required Condition of Test: Inundated in seat load Test Method: B Final Density: 103.7 Figure No.: 1 Testing Remarks: 1.4 inch diameter specimen per client's request. Tested By: D.Baker, M.Kelso Test Date: 12/4/13-12/23/13 Checked By: NRR, 3/28/14 Title: Lab Dept Manager Test Specimen Data TOTAL SAMPLE BEFORE TEST AFTER TEST Wet w+t = 41.19 g.Consolidometer # = 04 Wet w+t = 380.78 g. Dry w+t = 32.94 g.Dry w+t = 371.78 g. Tare Wt. = 6.74 g.Spec. Gravity = 2.84 Tare Wt. = 332.92 g. Height = 1.00 in.Height = 1.00 in. Diameter = 1.41 in.Diameter = 1.41 in. Weight = 50.40 g.Defl. Table = 143913335, 2W3, 122413 Moisture = 31.5 %Ht. Solids = 0.5321 in.Moisture = 23.2 % Wet Den. = 122.5 pcf Dry Wt. = 38.33 g. Dry Wt. = 38.86 g.* Dry Den. = 93.2 pcf Void Ratio = 0.877 Void Ratio = 0.707 Saturation = 102.0 % * Final dry weight used in calculations End-of-Load Summary Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv (ft.2/day) C Void Ratio % Compression /Swell start 0.00000 0.877 0.19 0.00490 0.00010 0.868 0.5 Comprs. 0.44 0.01210 0.00015 0.854 1.2 Comprs. 0.88 0.01790 0.00040 0.02 0.844 1.8 Comprs. 1.67 0.02670 0.00175 0.07 0.830 2.5 Comprs. 3.26 0.03870 0.00225 0.13 0.808 3.7 Comprs. 6.45 0.05580 0.00290 0.04 0.777 5.3 Comprs. 12.83 0.07390 0.00375 0.07 0.745 7.0 Comprs. 38.50 0.10160 0.00540 0.17 0.696 9.6 Comprs. 12.83 0.09990 0.00470 0.698 9.5 Comprs. S & ME, Inc. The client is responsible for interpreting the test data as provided by S&ME, Inc. 66 Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv(ft.2/day) C Void Ratio % Compression /Swell 6.45 0.09880 0.00430 0.699 9.5 Comprs. 1.67 0.09630 0.00370 0.703 9.3 Comprs. 0.44 0.09380 0.00340 0.707 9.1 Comprs. Cc = 0.11 Pc = 3.42 ksf Cr = 0.01 TEST READINGSPressure: 0.19 ksf Load No. 1 No. Elapsed Dial Time Reading 1 0.00 0.00000 2 0.10 0.00050 3 0.25 0.00060 4 0.50 0.00070 5 1.00 0.00090 6 2.00 0.00110 7 4.00 0.00140 8 8.00 0.00170 9 15.00 0.00210 10 30.00 0.00250 No. Elapsed Dial Time Reading 11 60.00 0.00300 12 1440.00 0.00490 Void Ratio = 0.868 Compression = 0.5 % TEST READINGSPressure: 0.44 ksf Load No. 2 No. Elapsed Dial Time Reading 1 0.00 0.00490 2 0.10 0.00590 3 0.25 0.00610 4 0.50 0.00620 5 1.00 0.00640 6 2.00 0.00670 7 4.00 0.00680 8 8.00 0.00700 9 15.00 0.00730 10 30.00 0.00770 No. Elapsed Dial Time Reading 11 60.00 0.00810 12 120.00 0.01100 13 240.00 0.01140 14 480.00 0.01170 15 1309.00 0.01210 Void Ratio = 0.854 Compression = 1.2 % S & ME, Inc. 67 TEST READINGSPressure: 0.88 ksf Load No. 3 No. Elapsed Dial Time Reading 1 0.00 0.01210 2 0.10 0.01340 3 0.25 0.01350 4 0.50 0.01360 5 1.00 0.01370 6 2.00 0.01390 7 4.00 0.01400 8 8.00 0.01420 9 15.00 0.01440 10 30.00 0.01480 No. Elapsed Dial Time Reading 11 60.00 0.01530 12 120.00 0.01570 13 240.00 0.01620 14 480.00 0.01700 15 1440.00 0.01790 Void Ratio = 0.844 Compression = 1.8 % D0 = 0.01304 D90 = 0.01517 D100 = 0.01541 Cv at 98.1 min. = 0.02 ft.2/day TEST READINGSPressure: 1.67 ksf Load No. 4 No. Elapsed Dial Time Reading 1 0.00 0.01790 2 0.10 0.01960 3 0.25 0.01980 4 0.50 0.01990 5 1.00 0.02010 6 2.00 0.02030 7 4.00 0.02050 8 8.00 0.02090 9 15.00 0.02120 10 30.00 0.02170 No. Elapsed Dial Time Reading 11 60.00 0.02220 12 120.00 0.02290 13 345.00 0.02390 14 1490.00 0.02590 15 2863.00 0.02670 Void Ratio = 0.830 Compression = 2.5 % D0 = 0.01784 D90 = 0.01997 D100 = 0.02020 Cv at 30.8 min. = 0.07 ft.2/day TEST READINGSPressure: 3.26 ksf Load No. 5 No. Elapsed Dial Time Reading 1 0.00 0.02670 2 0.10 0.02850 3 0.25 0.02930 4 0.50 0.02980 5 1.00 0.03000 6 2.00 0.03030 7 4.00 0.03060 8 8.00 0.03100 9 15.00 0.03140 10 30.00 0.03200 No. Elapsed Dial Time Reading 11 60.00 0.03260 12 120.00 0.03350 13 240.00 0.03450 14 480.00 0.03580 15 1440.00 0.03760 16 2880.00 0.03870 Void Ratio = 0.808 Compression = 3.7 % D0 = 0.02706 D90 = 0.02917 D100 = 0.02941 Cv at 15.4 min. = 0.13 ft.2/day S & ME, Inc. 68 TEST READINGSPressure: 6.45 ksf Load No. 6 No. Elapsed Dial Time Reading 1 0.00 0.03870 2 0.10 0.04210 3 0.25 0.04240 4 0.50 0.04260 5 1.00 0.04280 6 2.00 0.04310 7 4.00 0.04350 8 8.00 0.04390 9 15.00 0.04430 10 30.00 0.04500 No. Elapsed Dial Time Reading 11 60.00 0.04570 12 120.00 0.04660 13 240.00 0.04780 14 480.00 0.04920 15 1440.00 0.05150 16 2880.00 0.05320 17 4586.00 0.05420 18 6125.00 0.05490 19 7366.00 0.05540 20 8640.00 0.05580 Void Ratio = 0.777 Compression = 5.3 % D0 = 0.03931 D90 = 0.04251 D100 = 0.04287 Cv at 46.3 min. = 0.04 ft.2/day TEST READINGSPressure: 12.83 ksf Load No. 7 No. Elapsed Dial Time Reading 1 0.00 0.05580 2 0.10 0.05930 3 0.25 0.05950 4 0.50 0.05970 5 1.00 0.06000 6 2.00 0.06030 7 4.00 0.06060 8 8.00 0.06100 9 15.00 0.06150 10 30.00 0.06210 No. Elapsed Dial Time Reading 11 60.00 0.06280 12 120.00 0.06370 13 240.00 0.06480 14 480.00 0.06590 15 1440.00 0.06860 16 2685.00 0.07020 17 4320.00 0.07310 18 5569.00 0.07390 Void Ratio = 0.745 Compression = 7.0 % D0 = 0.05553 D90 = 0.05820 D100 = 0.05850 Cv at 25.7 min. = 0.07 ft.2/day TEST READINGSPressure: 38.50 ksf Load No. 8 No. Elapsed Dial Time Reading 1 0.00 0.07390 2 0.10 0.08430 3 0.25 0.08490 4 0.50 0.08540 5 1.00 0.08600 6 2.00 0.08660 7 4.00 0.08730 8 8.00 0.08800 9 15.00 0.08880 10 30.00 0.08970 No. Elapsed Dial Time Reading 11 60.00 0.09090 12 120.00 0.09230 13 240.00 0.09390 14 480.00 0.09580 15 1440.00 0.09930 16 2880.00 0.10160 Void Ratio = 0.696 Compression = 9.6 % D0 = 0.07888 D90 = 0.08292 D100 = 0.08337 Cv at 10.6 min. = 0.17 ft.2/day S & ME, Inc. 69 Title: Checked By: Project: Remarks:Client:Project No. Condition of Test: Preparation Process: AASHTOUSCSMATERIAL DESCRIPTION %Method Swell Press.D2435 FinalInit.FinalInit.FinalInit.FinalInit.Gr.CcPcVoid RatioSaturationMoistureOverburdenSp.PILL CONSOLIDATION TEST REPORT ASTM D2435 0.750 0.800 0.850 0.900 0.950 1.000 1.050 1.100 1.150 1.200 1.250 Vo i d R a t i o .1 .2 .5 1 2 5 10 200.0 0.2 0.4 0.6 0.8 1.0 Cv (f t . 2/d a y ) Applied Pressure - ksf Figure S & ME, INC. Louisville, TN Location: 2W6-S(2), 13-13.5 ft 1 Project Manager NRR, 3/19/14 1.4 inch diameter specimen per client's request. White Mesa Mill MWH Americas, Inc.1439-13-335 0.02BInundated in seat load Trimming not required 0.270.840.7921.200100.0 %84.4 %27.8 %35.5 %99.187.52.853268 MHELASTIC SILT (MH), gray (ksf) SwellCr (ksf)(ksf) Dry Dens. (pcf) The client is responsible for interpreting the test data as provided by S&ME, Inc. 70 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.70 ft.2/day T90 D90 Location: 2W6-S(2), 13-13.5 ft 2 2.95 min. 0.01949 0.01838 0.00844 0.86 ksf 3 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .005 .008 .011 .014 .017 .020 .023 .026 .029 .032 .035 t90 FigureS & ME, Inc. Cv @ T90 0.35 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W6-S(2), 13-13.5 ft 5.65 min. 0.04124 0.04049 0.03373 1.66 ksf 4 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .0312 .0337 .0362 .0387 .0412 .0437 .0462 .0487 .0512 .0537 .0562 t90 71 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.36 ft.2/day T90 D90 Location: 2W6-S(2), 13-13.5 ft 3 5.10 min. 0.06874 0.06746 0.05589 3.25 ksf 5 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .051 .055 .059 .063 .067 .071 .075 .079 .083 .087 .091 t90 FigureS & ME, Inc. Cv @ T90 0.33 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W6-S(2), 13-13.5 ft 5.26 min. 0.10352 0.10222 0.09051 6.44 ksf 6 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .086 .090 .094 .098 .102 .106 .110 .114 .118 .122 .126 t90 72 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.08 ft.2/day T90 D90 Location: 2W6-S(2), 13-13.5 ft 4 18.72 min. 0.14464 0.14316 0.12984 12.80 ksf 7 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .124 .129 .134 .139 .144 .149 .154 .159 .164 .169 .174 t90 FigureS & ME, Inc. Cv @ T90 0.25 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W6-S(2), 13-13.5 ft 5.73 min. 0.17794 0.17696 0.16808 25.24 ksf 8 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .163 .168 .173 .178 .183 .188 .193 .198 .203 .208 .213 t90 73 CONSOLIDATION TEST DATA Client: MWH Americas, Inc. Project: White Mesa Mill Project Number: 1439-13-335 Sample Data Source: Sample No.: 10017 Depth: 13.0 - 13.5 ft Sample Length(in./cm.): Location: 2W6-S(2), 13-13.5 ft Description: ELASTIC SILT (MH), gray Sample Date: 10/18/13 Liquid Limit: 68 Plasticity Index: 32 USCS: MH AASHTO: Preparation Process: Trimming not required Condition of Test: Inundated in seat load Test Method: B Final Density: 99.1 Figure No.: 1 Testing Remarks: 1.4 inch diameter specimen per client's request. Tested By: DB & MDK Test Date: 1/28/14-2/12/14 Checked By: NRR, 3/19/14 Title: Project Manager Test Specimen Data TOTAL SAMPLE BEFORE TEST AFTER TEST Wet w+t = 35.19 g.Consolidometer # = 3 Wet w+t = 58.52 g. Dry w+t = 31.34 g.Dry w+t = 49.39 g. Tare Wt. = 20.51 g.Spec. Gravity = 2.85 Tare Wt. = 16.56 g. Height = 1.00 in.Height = 1.00 in. Diameter = 1.40 in.Diameter = 1.40 in. Weight = 48.15 g.Defl. Table = 143913335, #20983 Moisture = 35.5 %Ht. Solids = 0.4566 in.Moisture = 27.8 % Wet Den. = 118.6 pcf Dry Wt. = 35.52 g. Dry Wt. = 32.83 g.* Dry Den. = 87.5 pcf Void Ratio = 1.200 Void Ratio = 0.792 Saturation = 84.4 % * Final dry weight used in calculations End-of-Load Summary Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv (ft.2/day) C Void Ratio % Compression /Swell start 0.00000 1.200 0.23 0.00090 0.00010 1.199 0.1 Comprs. 0.45 0.00550 0.00010 1.189 0.5 Comprs. 0.86 0.03150 0.00010 0.70 1.132 3.1 Comprs. 1.66 0.05270 0.00040 0.35 1.086 5.2 Comprs. 3.25 0.08590 0.00100 0.36 1.014 8.4 Comprs. 6.44 0.12360 0.00140 0.33 0.933 12.2 Comprs. 12.80 0.16390 0.00210 0.08 0.846 16.1 Comprs. 25.24 0.20490 0.00330 0.25 0.759 20.1 Comprs. 6.44 0.20160 0.00250 0.764 19.8 Comprs. S & ME, Inc. The client is responsible for interpreting the test data as provided by S&ME, Inc. 74 Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv(ft.2/day) C Void Ratio % Compression /Swell 1.66 0.19500 0.00170 0.777 19.2 Comprs. 0.45 0.18740 0.00090 0.792 18.6 Comprs. Cc = 0.27 Pc = 0.84 ksf Cr = 0.02 TEST READINGSPressure: 0.23 ksf Load No. 1 No. Elapsed Dial Time Reading 1 0.00 0.00000 2 0.10 0.00010 3 0.25 0.00010 4 0.50 0.00010 5 1.00 0.00010 6 2.00 0.00010 7 4.00 0.00020 8 8.00 0.00020 9 15.00 0.00030 10 30.00 0.00030 No. Elapsed Dial Time Reading 11 60.00 0.00040 12 120.00 0.00050 13 240.00 0.00060 14 480.00 0.00080 15 1400.00 0.00090 Void Ratio = 1.199 Compression = 0.1 % TEST READINGSPressure: 0.45 ksf Load No. 2 No. Elapsed Dial Time Reading 1 0.00 0.00090 2 0.10 0.00150 3 0.25 0.00170 4 0.50 0.00190 5 1.00 0.00210 6 2.00 0.00230 7 4.00 0.00250 8 8.00 0.00270 9 15.00 0.00300 10 30.00 0.00330 No. Elapsed Dial Time Reading 11 60.00 0.00370 12 120.00 0.00400 13 240.00 0.00450 14 480.00 0.00500 15 1440.00 0.00550 Void Ratio = 1.189 Compression = 0.5 % S & ME, Inc. 75 TEST READINGSPressure: 0.86 ksf Load No. 3 No. Elapsed Dial Time Reading 1 0.00 0.00550 2 0.10 0.01030 3 0.25 0.01190 4 0.50 0.01350 5 1.00 0.01560 6 2.00 0.01760 7 4.00 0.01930 8 8.00 0.02060 9 15.00 0.02180 10 30.00 0.02430 No. Elapsed Dial Time Reading 11 60.00 0.02440 12 120.00 0.02570 13 240.00 0.02690 14 480.00 0.02890 15 1440.00 0.02970 16 2936.00 0.03150 Void Ratio = 1.132 Compression = 3.1 % D0 = 0.00844 D90 = 0.01838 D100 = 0.01949 Cv at 3.0 min. = 0.70 ft.2/day TEST READINGSPressure: 1.66 ksf Load No. 4 No. Elapsed Dial Time Reading 1 0.00 0.03150 2 0.10 0.03470 3 0.25 0.03570 4 0.50 0.03670 5 1.00 0.03780 6 2.00 0.03900 7 4.00 0.04030 8 8.00 0.04160 9 15.00 0.04280 10 30.00 0.04430 No. Elapsed Dial Time Reading 11 60.00 0.04580 12 120.00 0.04740 13 240.00 0.04900 14 480.00 0.05040 15 1411.00 0.05270 Void Ratio = 1.086 Compression = 5.2 % D0 = 0.03373 D90 = 0.04049 D100 = 0.04124 Cv at 5.6 min. = 0.35 ft.2/day TEST READINGSPressure: 3.25 ksf Load No. 5 No. Elapsed Dial Time Reading 1 0.00 0.05270 2 0.10 0.05780 3 0.25 0.05960 4 0.50 0.06140 5 1.00 0.06400 6 2.00 0.06570 7 4.00 0.06780 8 8.00 0.06990 9 15.00 0.07190 10 30.00 0.07400 No. Elapsed Dial Time Reading 11 60.00 0.07640 12 120.00 0.07860 13 211.00 0.08030 14 480.00 0.08280 15 1380.00 0.08590 Void Ratio = 1.014 Compression = 8.4 % D0 = 0.05589 D90 = 0.06746 D100 = 0.06874 Cv at 5.1 min. = 0.36 ft.2/day S & ME, Inc. 76 TEST READINGSPressure: 6.44 ksf Load No. 6 No. Elapsed Dial Time Reading 1 0.00 0.08590 2 0.10 0.09270 3 0.25 0.09470 4 0.50 0.09660 5 1.00 0.09880 6 2.00 0.10070 7 4.00 0.10280 8 8.00 0.10510 9 15.00 0.10740 10 30.00 0.11000 No. Elapsed Dial Time Reading 11 60.00 0.11280 12 120.00 0.11550 13 240.00 0.11830 14 480.00 0.12070 15 1360.00 0.12360 Void Ratio = 0.933 Compression = 12.2 % D0 = 0.09051 D90 = 0.10222 D100 = 0.10352 Cv at 5.3 min. = 0.33 ft.2/day TEST READINGSPressure: 12.80 ksf Load No. 7 No. Elapsed Dial Time Reading 1 0.00 0.12360 2 0.10 0.13130 3 0.25 0.13310 4 0.50 0.13460 5 1.00 0.13640 6 2.00 0.13820 7 4.00 0.14010 8 8.00 0.14210 9 15.00 0.14450 10 30.00 0.14720 No. Elapsed Dial Time Reading 11 60.00 0.15030 12 120.00 0.15360 13 240.00 0.15660 14 549.00 0.16050 15 1440.00 0.16390 Void Ratio = 0.846 Compression = 16.1 % D0 = 0.12984 D90 = 0.14316 D100 = 0.14464 Cv at 18.7 min. = 0.08 ft.2/day TEST READINGSPressure: 25.24 ksf Load No. 8 No. Elapsed Dial Time Reading 1 0.00 0.16390 2 0.10 0.17200 3 0.25 0.17350 4 0.50 0.17480 5 1.00 0.17620 6 2.00 0.17770 7 4.00 0.17940 8 8.00 0.18120 9 15.00 0.18330 10 30.00 0.18600 No. Elapsed Dial Time Reading 11 60.00 0.18930 12 120.00 0.19260 13 240.00 0.19630 14 480.00 0.20030 15 1440.00 0.20490 Void Ratio = 0.759 Compression = 20.1 % D0 = 0.16808 D90 = 0.17696 D100 = 0.17794 Cv at 5.7 min. = 0.25 ft.2/day S & ME, Inc. 77 TEST READINGSPressure: 6.44 ksf Load No. 9 No. Elapsed Dial Time Reading 1 0.00 0.20490 2 0.50 0.20210 3 1.00 0.20210 4 2.00 0.20200 5 60.00 0.20160 6 240.00 0.20160 Void Ratio = 0.764 Compression = 19.8 % TEST READINGSPressure: 1.66 ksf Load No. 10 No. Elapsed Dial Time Reading 1 0.00 0.20160 2 0.50 0.19800 3 1.00 0.19770 4 2.00 0.19730 5 168.00 0.19560 6 2520.00 0.19500 Void Ratio = 0.777 Compression = 19.2 % TEST READINGSPressure: 0.45 ksf Load No. 11 No. Elapsed Dial Time Reading 1 0.00 0.19500 2 0.10 0.19370 3 0.25 0.19340 4 0.50 0.19310 5 1.00 0.19280 6 2.00 0.19240 7 4.00 0.19190 8 8.00 0.19150 9 17.16 0.19090 10 30.00 0.19040 No. Elapsed Dial Time Reading 11 60.00 0.18980 12 120.00 0.18920 13 240.00 0.18860 14 480.00 0.18810 15 1440.00 0.18740 Void Ratio = 0.792 Compression = 18.6 % S & ME, Inc. 78 Title: Checked By: Project: Remarks:Client:Project No. Condition of Test: Preparation Process: AASHTOUSCSMATERIAL DESCRIPTION %Method Swell Press.D2435 FinalInit.FinalInit.FinalInit.FinalInit.Gr.CcPcVoid RatioSaturationMoistureOverburdenSp.PILL CONSOLIDATION TEST REPORT ASTM D2435 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 Vo i d R a t i o .1 .2 .5 1 2 5 10 20.058 .133 .208 .283 .358 .433 Cv (f t . 2/d a y ) Applied Pressure - ksf Figure S & ME, INC. Louisville, TN Location: 2W6-S(3), 15-15.5 ft 1 Project Manager NRR, 4/2/14 1.4 inch diameter specimen per client's request. White Mesa Mill MWH Americas, Inc.1439-13-335 0.06BInundated in seat load Trimming not required 0.610.931.4222.076100.0 %95.5 %53.4 %71.6 %70.559.32.772454 Sandy MHSANDY ELASTIC SILT (MH), gray, fine sand (ksf) SwellCr (ksf)(ksf) Dry Dens. (pcf) The client is responsible for interpreting the test data as provided by S&ME, Inc. 79 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.35 ft.2/day T90 D90 Location: 2W6-S(3), 15-15.5 ft 2 5.61 min. 0.04971 0.04645 0.01710 1.67 ksf 4 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .0096 .0171 .0246 .0321 .0396 .0471 .0546 .0621 .0696 .0771 .0846 t90 FigureS & ME, Inc. Cv @ T90 0.16 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W6-S(3), 15-15.5 ft 11.27 min. 0.10142 0.09877 0.07500 3.26 ksf 5 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .0675 .0750 .0825 .0900 .0975 .1050 .1125 .1200 .1275 .1350 .1425 t90 80 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.14 ft.2/day T90 D90 Location: 2W6-S(3), 15-15.5 ft 3 11.04 min. 0.15439 0.15128 0.12330 6.45 ksf 6 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .1157 .1232 .1307 .1382 .1457 .1532 .1607 .1682 .1757 .1832 .1907 t90 FigureS & ME, Inc. Cv @ T90 0.13 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 2W6-S(3), 15-15.5 ft 10.12 min. 0.21270 0.20952 0.18090 12.83 ksf 7 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .17 .18 .19 .20 .21 .22 .23 .24 .25 .26 .27 t90 81 CONSOLIDATION TEST DATA Client: MWH Americas, Inc. Project: White Mesa Mill Project Number: 1439-13-335 Sample Data Source: Sample No.: 10017 Depth: 15.0 - 15.5 ft Sample Length(in./cm.): Location: 2W6-S(3), 15-15.5 ft Description: SANDY ELASTIC SILT (MH), gray, fine sand Sample Date: 10/18/13 Liquid Limit: 54 Plasticity Index: 24 USCS: Sandy MH AASHTO: Preparation Process: Trimming not required Condition of Test: Inundated in seat load Test Method: B Final Density: 70.5 Figure No.: 1 Testing Remarks: 1.4 inch diameter specimen per client's request. Tested By: DB & MDK Test Date: 2/10/14-2/21/14 Checked By: NRR, 4/2/14 Title: Project Manager Test Specimen Data TOTAL SAMPLE BEFORE TEST AFTER TEST Wet w+t = 29.38 g.Consolidometer # = 4 Wet w+t = 54.99 g. Dry w+t = 24.44 g.Dry w+t = 42.75 g. Tare Wt. = 17.54 g.Spec. Gravity = 2.77 Tare Wt. = 19.82 g. Height = 1.01 in.Height = 1.01 in. Diameter = 1.40 in.Diameter = 1.40 in. Weight = 41.52 g.Defl. Table = 143913335, #20984 Moisture = 71.6 %Ht. Solids = 0.3282 in.Moisture = 53.4 % Wet Den. = 101.8 pcf Dry Wt. = 24.20 g. Dry Wt. = 22.93 g.* Dry Den. = 59.3 pcf Void Ratio = 2.076 Void Ratio = 1.422 Saturation = 95.5 % * Final dry weight used in calculations End-of-Load Summary Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv (ft.2/day) C Void Ratio % Compression /Swell start 0.00000 2.076 0.19 0.00120 0.00000 2.072 0.1 Comprs. 0.44 0.00620 0.00010 2.057 0.6 Comprs. 0.88 0.01440 0.00030 2.033 1.4 Comprs. 1.67 0.07280 0.00060 0.35 1.856 7.2 Comprs. 3.26 0.12280 0.00120 0.16 1.705 12.0 Comprs. 6.45 0.18280 0.00330 0.14 1.529 17.8 Comprs. 12.83 0.24980 0.00520 0.13 1.330 24.2 Comprs. 6.45 0.24730 0.00540 1.339 24.0 Comprs. 1.67 0.23430 0.00420 1.374 22.8 Comprs. S & ME, Inc. The client is responsible for interpreting the test data as provided by S&ME, Inc. 82 Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv(ft.2/day) C Void Ratio % Compression /Swell 0.44 0.21830 0.00370 1.422 21.3 Comprs. Cc = 0.61 Pc = 0.93 ksf Cr = 0.06 TEST READINGSPressure: 0.19 ksf Load No. 1 No. Elapsed Dial Time Reading 1 0.00 0.00000 2 0.10 0.00020 3 0.25 0.00020 4 0.50 0.00030 5 1.00 0.00030 6 2.00 0.00040 7 4.00 0.00040 8 8.00 0.00050 9 15.00 0.00050 10 30.00 0.00060 No. Elapsed Dial Time Reading 11 60.00 0.00070 12 120.00 0.00080 13 240.00 0.00100 14 480.00 0.00110 15 1410.00 0.00120 Void Ratio = 2.072 Compression = 0.1 % TEST READINGSPressure: 0.44 ksf Load No. 2 No. Elapsed Dial Time Reading 1 0.00 0.00120 2 0.10 0.00270 3 0.25 0.00350 4 0.50 0.00400 5 1.00 0.00440 6 2.00 0.00480 7 4.00 0.00520 8 8.00 0.00550 9 15.00 0.00570 10 30.00 0.00590 No. Elapsed Dial Time Reading 11 60.00 0.00610 12 120.00 0.00620 Void Ratio = 2.057 Compression = 0.6 % S & ME, Inc. 83 TEST READINGSPressure: 0.88 ksf Load No. 3 No. Elapsed Dial Time Reading 1 0.00 0.00620 2 0.10 0.00870 3 0.25 0.00910 4 0.50 0.00960 5 1.00 0.01020 6 2.00 0.01080 7 4.00 0.01140 8 8.00 0.01180 9 15.00 0.01220 10 30.00 0.01250 No. Elapsed Dial Time Reading 11 60.00 0.01280 12 120.00 0.01320 13 240.00 0.01360 14 480.00 0.01390 15 1380.00 0.01440 Void Ratio = 2.033 Compression = 1.4 % TEST READINGSPressure: 1.67 ksf Load No. 4 No. Elapsed Dial Time Reading 1 0.00 0.01440 2 0.10 0.02200 3 0.25 0.02250 4 0.50 0.02870 5 1.00 0.03380 6 2.00 0.03920 7 4.00 0.04460 8 8.00 0.05010 9 15.00 0.05470 10 30.00 0.05840 No. Elapsed Dial Time Reading 11 60.00 0.06160 12 120.00 0.06410 13 240.00 0.06650 14 480.00 0.06890 15 1440.00 0.07280 Void Ratio = 1.856 Compression = 7.2 % D0 = 0.01710 D90 = 0.04645 D100 = 0.04971 Cv at 5.6 min. = 0.35 ft.2/day TEST READINGSPressure: 3.26 ksf Load No. 5 No. Elapsed Dial Time Reading 1 0.00 0.07280 2 0.10 0.07800 3 0.25 0.07970 4 0.50 0.08190 5 1.00 0.08500 6 2.00 0.08870 7 4.00 0.09350 8 8.00 0.09800 9 15.00 0.10190 10 30.00 0.10570 No. Elapsed Dial Time Reading 11 60.00 0.10900 12 120.00 0.11230 13 240.00 0.11560 14 480.00 0.11890 15 1380.00 0.12280 Void Ratio = 1.705 Compression = 12.0 % D0 = 0.07500 D90 = 0.09877 D100 = 0.10142 Cv at 11.3 min. = 0.16 ft.2/day S & ME, Inc. 84 TEST READINGSPressure: 6.45 ksf Load No. 6 No. Elapsed Dial Time Reading 1 0.00 0.12280 2 0.10 0.12850 3 0.25 0.13090 4 0.50 0.13340 5 1.00 0.13700 6 2.00 0.14180 7 4.00 0.14700 8 8.00 0.15250 9 15.00 0.15690 10 30.00 0.16180 No. Elapsed Dial Time Reading 11 60.00 0.16550 12 120.00 0.16940 13 240.00 0.17340 14 480.00 0.17690 15 1592.00 0.18280 Void Ratio = 1.529 Compression = 17.8 % D0 = 0.12330 D90 = 0.15128 D100 = 0.15439 Cv at 11.0 min. = 0.14 ft.2/day TEST READINGSPressure: 12.83 ksf Load No. 7 No. Elapsed Dial Time Reading 1 0.00 0.18280 2 0.10 0.18800 3 0.25 0.18950 4 0.50 0.19400 5 1.00 0.19770 6 2.00 0.20290 7 4.00 0.20800 8 8.00 0.21330 9 15.00 0.21750 10 30.00 0.22230 No. Elapsed Dial Time Reading 11 60.00 0.22460 12 120.00 0.22580 13 240.00 0.23430 14 360.00 0.23700 15 1440.00 0.24620 16 2753.00 0.24980 Void Ratio = 1.330 Compression = 24.2 % D0 = 0.18090 D90 = 0.20952 D100 = 0.21270 Cv at 10.1 min. = 0.13 ft.2/day TEST READINGSPressure: 6.45 ksf Load No. 8 No. Elapsed Dial Time Reading 1 0.00 0.24980 2 0.10 0.24860 3 0.25 0.24840 4 0.50 0.24820 5 1.00 0.24810 6 2.00 0.24790 7 4.00 0.24780 8 8.00 0.24770 9 15.00 0.24760 10 30.00 0.24760 No. Elapsed Dial Time Reading 11 60.00 0.24750 12 120.00 0.24740 13 1440.00 0.24730 Void Ratio = 1.339 Compression = 24.0 % S & ME, Inc. 85 TEST READINGSPressure: 1.67 ksf Load No. 9 No. Elapsed Dial Time Reading 1 0.00 0.24730 2 0.10 0.24450 3 0.25 0.24370 4 0.50 0.24290 5 1.00 0.24180 6 2.00 0.24070 7 4.00 0.23950 8 8.00 0.23850 9 60.00 0.23640 10 120.00 0.23590 No. Elapsed Dial Time Reading 11 240.00 0.23540 12 1226.00 0.23430 Void Ratio = 1.374 Compression = 22.8 % TEST READINGSPressure: 0.44 ksf Load No. 10 No. Elapsed Dial Time Reading 1 0.00 0.23430 2 0.10 0.23320 3 0.25 0.23260 4 0.50 0.23210 5 1.00 0.23130 6 2.00 0.23040 7 4.00 0.22920 8 8.00 0.22770 9 15.00 0.22640 10 30.00 0.22500 No. Elapsed Dial Time Reading 11 60.00 0.22360 12 120.00 0.22230 13 240.00 0.22110 14 480.00 0.21980 15 1440.00 0.21830 Void Ratio = 1.422 Compression = 21.3 % S & ME, Inc. 86 Title: Checked By: Project: Remarks:Client:Project No. Condition of Test: Preparation Process: AASHTOUSCSMATERIAL DESCRIPTION %Method Swell Press.D2435 FinalInit.FinalInit.FinalInit.FinalInit.Gr.CcPcVoid RatioSaturationMoistureOverburdenSp.PILL CONSOLIDATION TEST REPORT ASTM D2435 1.020 1.080 1.140 1.200 1.260 1.320 1.380 1.440 1.500 1.560 1.620 Vo i d R a t i o .1 .2 .5 1 2 5 10 20.000 .025 .050 .075 .100 .125 Cv (f t . 2/d a y ) Applied Pressure - ksf Figure S & ME, INC. Louisville, TN Location: 3-6N, 6-6.5 ft 1 Project Manager NRR, 4/2/14 1.4 inch diameter specimen per client's request. White Mesa Mill MWH Americas, Inc.1439-13-335 0.02BInundated in seat load Trimming not required 0.280.531.0861.55695.0 %75.4 %36.1 %41.0 %86.379.62.861537 Sandy CLSANDY LEAN CLAY (CL), gray, fine sand (ksf) SwellCr (ksf)(ksf) Dry Dens. (pcf) The client is responsible for interpreting the test data as provided by S&ME, Inc. 87 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.10 ft.2/day T90 D90 Location: 3-6N, 6-6.5 ft 2 20.49 min. 0.02774 0.02683 0.01872 0.86 ksf 3 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .015 .018 .021 .024 .027 .030 .033 .036 .039 .042 .045 t90 FigureS & ME, Inc. Cv @ T90 0.01 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 3-6N, 6-6.5 ft 174.55 min. 0.05837 0.05699 0.04461 1.66 ksf 4 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .040 .044 .048 .052 .056 .060 .064 .068 .072 .076 .080 t90 88 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.10 ft.2/day T90 D90 Location: 3-6N, 6-6.5 ft 3 18.76 min. 0.07901 0.07836 0.07249 3.25 ksf 5 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0.0 7.5 15.0 22.5 30.0 37.5 45.0 52.5 60.0 67.5 75.0 .068 .072 .076 .080 .084 .088 .092 .096 .100 .104 .108 t90 FigureS & ME, Inc. Cv @ T90 0.01 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 3-6N, 6-6.5 ft 126.32 min. 0.11680 0.11532 0.10203 6.44 ksf 6 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .098 .102 .106 .110 .114 .118 .122 .126 .130 .134 .138 t90 89 = =D100 = =D0 Load= Load No.= Project: Project No.: Dial Reading vs. Time Cv @ T90 0.02 ft.2/day T90 D90 Location: 3-6N, 6-6.5 ft 4 64.99 min. 0.14641 0.14515 0.13382 12.80 ksf 7 White Mesa Mill 1439-13-335 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .129 .133 .137 .141 .145 .149 .153 .157 .161 .165 .169 t90 FigureS & ME, Inc. Cv @ T90 0.01 ft.2/day =T90 =D100 =D90 =D0 Load= Load No.= Location: 3-6N, 6-6.5 ft 127.33 min. 0.18574 0.18411 0.16942 25.24 ksf 8 Square Root of Elapsed Time (min.) Di a l R e a d i n g ( i n . ) 0 5 10 15 20 25 30 35 40 45 50 .165 .169 .173 .177 .181 .185 .189 .193 .197 .201 .205 t90 90 CONSOLIDATION TEST DATA Client: MWH Americas, Inc. Project: White Mesa Mill Project Number: 1439-13-335 Sample Data Source: Sample No.: 10017 Depth: 6.0 - 6.5 ft Sample Length(in./cm.): Location: 3-6N, 6-6.5 ft Description: SANDY LEAN CLAY (CL), gray, fine sand Sample Date: 10/22/13 Liquid Limit: 37 Plasticity Index: 15 USCS: Sandy CL AASHTO: Preparation Process: Trimming not required Condition of Test: Inundated in seat load Test Method: B Final Density: 86.3 Figure No.: 1 Testing Remarks: 1.4 inch diameter specimen per client's request. Tested By: DB & MDK Test Date: 2/13/14-3/4/14 Checked By: NRR, 4/2/14 Title: Project Manager Test Specimen Data TOTAL SAMPLE BEFORE TEST AFTER TEST Wet w+t = 45.90 g.Consolidometer # = 3 Wet w+t = 55.00 g. Dry w+t = 37.95 g.Dry w+t = 44.81 g. Tare Wt. = 18.57 g.Spec. Gravity = 2.86 Tare Wt. = 16.57 g. Height = 1.00 in.Height = 1.00 in. Diameter = 1.40 in.Diameter = 1.40 in. Weight = 45.36 g.Defl. Table = 143913335, #20983 Moisture = 41.0 %Ht. Solids = 0.3914 in.Moisture = 36.1 % Wet Den. = 112.2 pcf Dry Wt. = 32.17 g. Dry Wt. = 28.24 g.* Dry Den. = 79.6 pcf Void Ratio = 1.556 Void Ratio = 1.086 Saturation = 75.4 % * Final dry weight used in calculations End-of-Load Summary Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv (ft.2/day) C Void Ratio % Compression /Swell start 0.00080 1.556 0.23 0.00390 0.00010 1.548 0.3 Comprs. 0.45 0.01230 0.00010 1.527 1.1 Comprs. 0.86 0.04150 0.00010 0.10 1.452 4.1 Comprs. 1.66 0.07010 0.00040 0.01 1.380 6.9 Comprs. 3.25 0.09970 0.00100 0.10 1.306 9.8 Comprs. 6.44 0.13060 0.00140 0.01 1.228 12.8 Comprs. 12.80 0.16670 0.00210 0.02 1.138 16.4 Comprs. 25.24 0.20360 0.00330 0.01 1.046 19.9 Comprs. 6.44 0.20020 0.00250 1.053 19.7 Comprs. S & ME, Inc. 91 Pressure (ksf) Final Dial (in.) Machine Defl. (in.) Cv(ft.2/day) C Void Ratio % Compression /Swell 1.66 0.19440 0.00170 1.066 19.2 Comprs. 0.45 0.18560 0.00090 1.086 18.4 Comprs. Cc = 0.28 Pc = 0.53 ksf Cr = 0.02 TEST READINGSPressure: 0.23 ksf Load No. 1 No. Elapsed Dial Time Reading 1 0.00 0.00080 2 0.10 0.00040 3 0.25 0.00040 4 0.50 0.00040 5 1.00 0.00050 6 2.00 0.00050 7 4.00 0.00050 8 8.00 0.00060 9 15.00 0.00060 10 30.00 0.00070 No. Elapsed Dial Time Reading 11 60.00 0.00090 12 120.00 0.00110 13 240.00 0.00130 14 480.00 0.00180 15 1759.00 0.00280 16 4397.00 0.00390 Void Ratio = 1.548 Compression = 0.3 % TEST READINGSPressure: 0.45 ksf Load No. 2 No. Elapsed Dial Time Reading 1 0.00 0.00390 2 0.10 0.00460 3 0.25 0.00460 4 0.50 0.00480 5 1.00 0.00490 6 2.00 0.00510 7 4.00 0.00530 8 8.00 0.00550 9 15.00 0.00580 10 30.00 0.00610 No. Elapsed Dial Time Reading 11 60.00 0.00650 12 120.00 0.00700 13 240.00 0.00770 14 480.00 0.00810 15 1320.00 0.01030 16 1440.00 0.01050 17 2820.00 0.01230 Void Ratio = 1.527 Compression = 1.1 % S & ME, Inc. 92 TEST READINGSPressure: 0.86 ksf Load No. 3 No. Elapsed Dial Time Reading 1 0.00 0.01230 2 0.10 0.01870 3 0.25 0.01950 4 0.50 0.02040 5 1.00 0.02120 6 2.00 0.02230 7 4.00 0.02350 8 8.00 0.02480 9 15.00 0.02620 10 30.00 0.02800 No. Elapsed Dial Time Reading 11 60.00 0.03010 12 120.00 0.03240 13 240.00 0.03500 14 480.00 0.03790 15 1440.00 0.04150 Void Ratio = 1.452 Compression = 4.1 % D0 = 0.01872 D90 = 0.02683 D100 = 0.02774 Cv at 20.5 min. = 0.10 ft.2/day TEST READINGSPressure: 1.66 ksf Load No. 4 No. Elapsed Dial Time Reading 1 0.00 0.04150 2 0.10 0.04460 3 0.25 0.04500 4 0.50 0.04540 5 1.00 0.04600 6 2.00 0.04670 7 4.00 0.04760 8 8.00 0.04870 9 15.00 0.04980 10 30.00 0.05140 No. Elapsed Dial Time Reading 11 60.00 0.05360 12 120.00 0.05600 13 240.00 0.05880 14 480.00 0.06170 15 1350.00 0.06650 16 1440.00 0.06670 17 3346.00 0.07010 Void Ratio = 1.380 Compression = 6.9 % D0 = 0.04461 D90 = 0.05699 D100 = 0.05837 Cv at 174.5 min. = 0.01 ft.2/day TEST READINGSPressure: 3.25 ksf Load No. 5 No. Elapsed Dial Time Reading 1 0.00 0.07010 2 0.10 0.07380 3 0.25 0.07430 4 0.50 0.07470 5 1.00 0.07510 6 2.00 0.07570 7 4.00 0.07670 8 8.00 0.07780 9 15.00 0.07890 10 30.00 0.08050 No. Elapsed Dial Time Reading 11 60.00 0.08270 12 120.00 0.08530 13 371.00 0.08940 14 2569.00 0.09970 Void Ratio = 1.306 Compression = 9.8 % D0 = 0.07249 D90 = 0.07836 D100 = 0.07901 Cv at 18.8 min. = 0.10 ft.2/day S & ME, Inc. 93 TEST READINGSPressure: 6.44 ksf Load No. 6 No. Elapsed Dial Time Reading 1 0.00 0.09970 2 0.10 0.10350 3 0.25 0.10390 4 0.50 0.10430 5 1.00 0.10480 6 2.00 0.10540 7 4.00 0.10630 8 8.00 0.10780 9 15.00 0.10900 10 30.00 0.11090 No. Elapsed Dial Time Reading 11 60.00 0.11360 12 120.00 0.11650 13 240.00 0.12000 14 480.00 0.12460 15 1320.00 0.13000 16 1440.00 0.13060 Void Ratio = 1.228 Compression = 12.8 % D0 = 0.10203 D90 = 0.11532 D100 = 0.11680 Cv at 126.3 min. = 0.01 ft.2/day TEST READINGSPressure: 12.80 ksf Load No. 7 No. Elapsed Dial Time Reading 1 0.00 0.13060 2 0.10 0.13610 3 0.25 0.13660 4 0.50 0.13700 5 1.00 0.13760 6 2.00 0.13840 7 4.00 0.13940 8 8.00 0.14080 9 15.00 0.14220 10 30.00 0.14450 No. Elapsed Dial Time Reading 11 60.00 0.14690 12 120.00 0.15050 13 240.00 0.15480 14 480.00 0.15980 15 1200.00 0.16590 16 1400.00 0.16670 Void Ratio = 1.138 Compression = 16.4 % D0 = 0.13382 D90 = 0.14515 D100 = 0.14641 Cv at 65.0 min. = 0.02 ft.2/day TEST READINGSPressure: 25.24 ksf Load No. 8 No. Elapsed Dial Time Reading 1 0.00 0.16670 2 0.10 0.17270 3 0.25 0.17310 4 0.50 0.17370 5 1.00 0.17430 6 2.00 0.17500 7 4.00 0.17600 8 8.00 0.17730 9 15.00 0.17890 10 30.00 0.18110 No. Elapsed Dial Time Reading 11 60.00 0.18380 12 120.00 0.18710 13 240.00 0.19130 14 420.00 0.19550 15 1200.00 0.20300 16 1380.00 0.20360 Void Ratio = 1.046 Compression = 19.9 % D0 = 0.16942 D90 = 0.18411 D100 = 0.18574 Cv at 127.3 min. = 0.01 ft.2/day S & ME, Inc. 94 TEST READINGSPressure: 6.44 ksf Load No. 9 No. Elapsed Dial Time Reading 1 0.00 0.20360 2 0.10 0.20090 3 0.25 0.20080 4 0.50 0.20070 5 1.00 0.20070 6 2.00 0.20070 7 4.00 0.20060 8 8.00 0.20060 9 15.00 0.20050 10 30.00 0.20040 No. Elapsed Dial Time Reading 11 60.00 0.20030 12 120.00 0.20020 13 240.00 0.20020 14 1275.00 0.20020 15 1380.00 0.20020 Void Ratio = 1.053 Compression = 19.7 % TEST READINGSPressure: 1.66 ksf Load No. 10 No. Elapsed Dial Time Reading 1 0.00 0.20020 2 0.10 0.19740 3 0.25 0.19720 4 0.50 0.19700 5 1.00 0.19690 6 2.00 0.19670 7 4.00 0.19650 8 8.00 0.19620 9 15.00 0.19600 10 30.00 0.19570 No. Elapsed Dial Time Reading 11 60.00 0.19540 12 120.00 0.19520 13 240.00 0.19490 14 480.00 0.19470 15 1717.00 0.19440 Void Ratio = 1.066 Compression = 19.2 % TEST READINGSPressure: 0.45 ksf Load No. 11 No. Elapsed Dial Time Reading 1 0.00 0.19440 2 0.25 0.19200 3 0.50 0.19160 4 1.00 0.19140 5 2.00 0.19110 6 4.00 0.19070 7 8.00 0.19020 8 15.00 0.18970 9 30.00 0.18920 10 120.00 0.18800 No. Elapsed Dial Time Reading 11 300.00 0.18730 12 2610.00 0.18560 Void Ratio = 1.086 Compression = 18.4 % S & ME, Inc. 95 APPENDIX E INTERPRETATION GRAPHS OF CPT AND LABORATORY DATA APPENDIX E.1 TAILINGS CLASSIFICATION GRAPHS 1 10 100 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐1 Friction Ratio vs. Cone Resistance Tailings Classification Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Sand‐Slime Tailings (30 ‐ 70% Passing No. 200 Sieve) Slime Tailings (70 ‐ 100% Passing No. 200 Sieve) Sand/Sand‐Slime Cutoff from Larson and Mitchell (1986) Sand‐Slime/Slime Cutoff from Larson and Mitchell (1986) Sand Tailings Sand‐Slime Tailings Slime Tailings 11% 41%67%13% 54% 41% 29% 20% 46% 83% 78% 69% 58% 34% 60% 43%49% 65% 55%97% 34% 43% Cc =0.24 Cc =0.61 Cc =0.11 Cc =0.28 Cc =0.27 Notes: 1. Hollow markers indicate samples tested for consolidation. Compression index (Cc) shown next to marker. 2. % Passing no. 200 sieve shown next to marker. 1 10 100 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐2 Friction Ratio vs. Cone Resistance Adjusted Tailings Classification Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Sand‐Slime Tailings (30 ‐ 60% Passing No. 200 Sieve) Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings Notes: 1. Hollow markers indicate samples tested for consolidation. Compression index (Cc) shown next to marker. 2. % Passing no. 200 sieve shown next to marker. 11% 41%67%13% 54% 41% 29% 20% 46% 83% 78% 69% 58% 34% 60% 43%49% 65% 55%97% 34% 43% Cc =0.24 Cc =0.61 Cc =0.11 Cc =0.28 Cc =0.27 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐3 Cell 2 CPT Data Friction Ratio vs. Cone Resistance CPT‐2W2 CPT‐2W3 and CPT‐2W3A CPT‐2W4‐C and CPT‐2W4‐CA CPT‐2W5‐C CPT‐2W6‐S CPT‐2W6‐S(2) CPT‐2W6‐S(3) CPT‐2W7‐C CPT‐2E1 Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐4 Cell 3 CPT Data Friction Ratio vs. Cone Resistance CPT‐3‐1S CPT‐3‐2C CPT‐3‐3S CPT‐3‐4N CPT‐3‐6N CPT‐3‐8N CPT‐3‐8S Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐5 Cell 2 CPT‐2W2 Friction Ratio vs. Cone Resistance CPT‐2W2 Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐6 Cell 2 CPT‐2W3 and 2W3A Friction Ratio vs. Cone Resistance CPT‐2W3 and CPT‐2W3A Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐7 Cell 2 CPT‐2W4‐C and CPT‐2W4‐CA Friction Ratio vs. Cone Resistance CPT‐2W4‐C and CPT‐2W4‐CA Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐8 Cell 2 CPT‐2W5‐C Friction Ratio vs. Cone Resistance CPT‐2W5‐C Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐9 Cell 2 CPT‐2W6‐S Friction Ratio vs. Cone Resistance CPT‐2W6‐S Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐10 Cell 2 CPT‐2W6‐S(2) Friction Ratio vs. Cone Resistance CPT‐2W6‐S(2) Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐11 Cell 2 CPT‐2W6‐S(3) Friction Ratio vs. Cone Resistance CPT‐2W6‐S(3) Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐12 Cell 2 CPT‐2W7‐C Friction Ratio vs. Cone Resistance CPT‐2W7‐C Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐13 Cell 2 CPT‐2E1 Friction Ratio vs. Cone Resistance CPT‐2E1 Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐14 Cell 3 CPT‐3‐1S Friction Ratio vs. Cone Resistance CPT‐3‐1S Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐15 Cell 3 CPT‐3‐2C Friction Ratio vs. Cone Resistance CPT‐3‐2C Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐16 Cell 3 CPT‐3‐3S Friction Ratio vs. Cone Resistance CPT‐3‐3S Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐17 Cell 3 CPT‐3‐4N Friction Ratio vs. Cone Resistance CPT‐3‐4N Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐18 Cell 3 CPT‐3‐6N Friction Ratio vs. Cone Resistance CPT‐3‐6N Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐19 Cell 3 CPT‐3‐8N Friction Ratio vs. Cone Resistance CPT‐3‐8N Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings 1.0 10.0 100.0 1,000.0 012345678910 Co n e Re s i s t a n c e (t s f ) Friction Ratio, Rf (%) Figure E.1‐20 Cell 3 CPT‐3‐8S Friction Ratio vs. Cone Resistance CPT‐3‐8S Sand‐Slime/Slime Cutoff Sand/Sand‐Slime Tailings Slime Tailings APPENDIX E.2 PORE PRESSURE VS. ELEVATION GRAPHS 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐1 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W2 Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test Elevation of PPD Test Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐2 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W3 and CPT‐2W3A CPT‐2W3 Dynamic Pore Pressure CPT‐2W3A Dynamic Pore Pressure Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Calculated from PPD Test at 3.1' Depth Water Table Calculated from PPD Test at 3.9' Depth Water Table Calculated from PPD Test at 4.4' Depth Water Table Calculated from PPD Test at 18.5' Depth PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐3 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W4‐C and CPT‐2W4‐CA CPT‐2W4‐C Dynamic Pore Pressure CPT‐2W4‐CA Dynamic Pore Pressure Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test at 6.1' Depth Water Table Elevation Calculated from PPD Test at 9.4' Depth Water Table Calculated from PPD Test at 17.4' PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐4 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W5‐C Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐5 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W6‐S Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test at 15.1' Depth Water Table Elevation Calculated from PPD Test at 29.2' Depth PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20406080100120140160180200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐6 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W6‐S(2) Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐7 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W6‐S(3) Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20406080100120140160180200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐8 Pore Pressure vs. Elevation from CPT Soundings CPT‐2W7‐C Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐9 Pore Pressure vs. Elevation from CPT Soundings CPT‐2E1 Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐10 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐1S Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐11 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐2C Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20406080100120140160180200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐12 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐3S Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20406080100120140160180200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐13 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐4N Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20406080100120140160180200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐14 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐6N Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Tailings Water Table Elevation Calculated from PPD Test at 8.9' Depth Water Table Elevation Calculated from PPD Test at 18.5' Depth PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐15 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐8N Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Calculated from PPD Test PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. 5,580 5,585 5,590 5,595 5,600 5,605 5,610 5,615 5,620 0 20 40 60 80 100 120 140 160 180 200 El e v a t i o n (f t ) Pore Pressure (ft) Figure E.2‐16 Pore Pressure vs. Elevation from CPT Soundings CPT‐3‐8S Dynamic Pore Pressure from CPT Sounding Hydrostatic Pore Pressure Estimated Elevation of Top of Saturated Tailings Water Table Elevation Calculated from PPD Test at 6.1' Water Table Elevation Calculated from PPD Test at 15.3' PPD Test Elevation Note: The elevation of the hydrostatic pore pressure of zero was selected as the estimated elevation of the top of saturated tailings based on dynamic pore pressure readings and pore pressured dissipation tests. APPENDIX E.3 DENSITY GRAPHS 0 5 10 15 20 25 30 0 20406080100120140160 De p t h ( f t ) Total Density (pcf) Figure E.3‐1 Laboratory Measured Total Density vs. Depth Total Density Range Average Total Density Total Density - Sand Tailings (0 - 30% passing No. 200 sieve) Total Density - Sand-Slime Tailings (30 - 60% passing No. 200 sieve) Total Density - Slime Tailings (60 -100% passingNo. 200 sieve) 0 5 10 15 20 25 30 0 20406080100120140160 De p t h ( f t ) Dry Density (pcf) Figure E.3‐2 Laboratory Measured Dry Density vs. Depth Dry Density Range Average Dry Density Dry Density - Sand Tailings (0 - 30% passing No. 200 sieve) Dry Density - Sand-Slime Tailings (30 - 60% passing No. 200 sieve) Dry Density - Slime Tailings (60 -100% passing No. 200 sieve) 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐3 CPT‐2W2 Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2W2, Total Density CPT‐2W2, Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐4 CPT‐2W3 Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2W3, Total Density CPT‐2W3, Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐5 CPT‐2W4‐C Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2W4‐C, Total Density CPT‐2W4‐C, Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐6 CPT‐2W6‐S(2) Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2W6‐S(2), Total Density CPT‐2W6‐S(2), Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐7 CPT‐2W6‐S(3) Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2W6‐S(3), Total Density CPT‐2W6‐S(3), Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐8 CPT‐2E1 Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐2E1, Total Density CPT‐2E1, Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐9 CPT‐3‐4N Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐3‐4N, Total Density CPT‐3‐4N, Dry Density 0 5 10 15 20 25 30 50 60 70 80 90 100 110 120 130 140 150 De p t h ( f t ) Laboratory Measured Density (pcf) Figure E.3‐10 CPT‐3‐6N Laboratory Measured Density vs. Depth Total Density Range Dry Density Range CPT‐3‐6N, Total Density CPT‐3‐6N, Dry Density 50 55 60 65 70 75 80 85 90 95 100 50 55 60 65 70 75 80 85 90 95 100 Dr y De n s i t y Es t i m a t e d fr o m CP T Da t a (p c f ) Laboratory Measured Dry Density (pcf) Figure E.3‐11 Laboratory Measured Dry Density vs. Dry Density Estimated from CPT Data ( using relationship from Robertson and Cabal, 2012) Dry Density Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Dry Density Sand‐Slime Tailings (30 ‐ 60% Passing No. 200 Sieve) Dry Density Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) 1:1 Ratio 50 55 60 65 70 75 80 85 90 95 100 50 55 60 65 70 75 80 85 90 95 100 Dr y De n s i t y Es t i m a t e d fr o m CP T Da t a (p c f ) Laboratory Measured Dry Density (pcf) Figure E.3‐12 Laboratory Measured Dry Density vs. Dry Density Estimated from CPT Data (based on CPT soil behavior type after Lunne et al., 1997) Dry Density Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Dry Density Sand‐Slime Tailings (30 ‐ 60% Passing No. 200 Sieve) Dry Density Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) 1:1 Ratio 0 5 10 15 20 25 30 35 40 45 50 50 55 60 65 70 75 80 85 90 95 100 Co n e Re s i s t a n c e (t s f ) Laboratory Measured Dry Density (pcf) Figure E.3‐13 Laboratory Measured Dry Density vs. Cone Resistance from CPT Dry Density Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Dry Density Sand‐Slime Tailings (30 ‐ 60% Passing No. 200 Sieve) Dry Density Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) 0 1 2 3 4 5 50 55 60 65 70 75 80 85 90 95 100 Fr i c t i o n Ra t i o fr o m CP T So u n d i n g (% ) Laboratory Measured Dry Density (pcf) Figure E.3‐14 Laboratory Measured Dry Density vs. Friction Ratio from CPT Sounding Dry Density Sand Tailings (0 ‐ 30% Passing No. 200 Sieve) Dry Density Sand‐Slime Tailings (30 ‐ 60% Passing No. 200 Sieve) Dry Density Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) APPENDIX E.4 CONSOLIDATION PARAMETERS GRAPHS 0 10 20 30 40 50 60 70 80 0 102030405060708090100 Pl a s t i c i t y I n d e x Liquid Limit Figure E.4-1 Summary of Atterberg Limits Test Results Sand‐Slime (30 ‐ 60% Passing No. 200 Sieve) Slime Tailings (60 ‐ 100% Passing No. 200 Sieve) U-LINE A-LINE CH MH ML CL CL-ML Note: Hollow markers indicate samples tested for consolidation. Compression index (Cc) shown next to marker. Cc = 0.11 Cc = 0.61 Cc = 0.24 Cc = 0.27 Cc = 0.28 FIGURE E.4-2 Summary of Dry Density versus Water Content Test Results 50 60 70 80 90 100 110 120 10 20 30 40 50 60 70 80 Dr y D e n s i t y , p c f Water Content, % Sand Tailings (0 - 30% Passing No. 200 Sieve) Sand-Slime (30 - 60% Passing No. 200 Sieve) Slime Tailings (60 - 100% Passing No. 200 Sieve) 70% Saturation ZERO-AIR-VOID CURVE FOR AVERAGEMEASURED SPECIFIC GRAVITY OF 2.8 Note: Hollow markers indicate samples tested for consolidation. Compression index (Cc) shown next to marker. Cc = 0.24 Cc = 0.11 Cc = 0.28 Cc = 0.27 Cc = 0.61 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.00.5 1 1.5 2 2.5 0.1 1 10 100 In i t i a l Dr y De n s i t y (p c f ) Vo i d Ra t i o , e Pressure (ksf) Figure E.4-3 Summary of Consolidation Test Results 2W6‐S(3)@15‐15.5' (Cc = 0.61) 3‐6N@6‐6.5' (Cc = 0.28) 2W6‐S(2)@13‐13.5' (Cc = 0.27) 2W2@7.5‐8' (Cc = 0.24) 2W3@7‐8.5' (Cc = 0.11) 2W6‐S(3)@15‐15.5', initial dry density 3‐6N@6‐6.5', initial dry density 2W6‐S(2)@13 ‐ 13.5', initial dry density 2W2@7.5‐8', initial dry density 2W3@7‐8.5', initial dry density