Loading...
HomeMy WebLinkAboutCT 04-16; LA COSTA GREENS NEIGHBORHOOD 1.06; FINAL REPORT OF TESTING & OBSERVATION DURING SITE GRADING; 2005-12-290 FINAL REPORT OF TESTING AND OBSERVATION SERVICES PERFORMED DURING SITE GRADING VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOODS 1.06 AND 1.07 CARLSBAD, CALIFORNIA PREPARED FOR REAL ESTATE COLLATERAL MANAGEMENT COMPANY % MORROW DEVELOPMENT INCORPORATED CARLSBAD, CALIFORNIA PROGRESS - DECEMBER 29, 2005 PROJECT NO. 06403-52-19B GEOCON INCORPORATED GEOTECHNICAI. CONSULTANTS (40) Project No. 06403-52-195 December 29, 2005 Real Estate Collateral Management Company % Morrow Development Incorporated 1903 Wright Place, Suite 180 Carlsbad, California 92008 Attention: Mr. Tim O'Grady Subject: VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOODS 1.06 AND 1.07 CARLSBAD, CALIFORNIA FINAL REPORT OF TESTING AND OBSERVATION SERVICES PERFORMED DURING SITE GRADING Gentlemen: In accordance with your request and our proposal dated March 18, 2005 we have provided compaction testing and observation services during grading of the subject site. Our services were performed during the period of March 31 through October 31, 2005. The scope of our services included the following: Observing the grading operations, including the removal and/or processing of topsoil, colluvium, alluvium, landslide debris, and undocumented fill, and undercutting of transition lots. Observing the construction of stability fill and buttress fill slopes. Performing in-place dry density and moisture content tests in fill placed and compacted at the site. Performing laboratory tests to aid in evaluating maximum dry density and optimum moisture content and shear strength of the compacted fill soil. Additionally, laboratory tests were performed on samples of soil present at finish-grade to evaluate expansion characteristics and water-soluble sulfate. Preparing an "As-Graded" Geologic Map. Preparing this final report of grading. The purpose of this report is to document that the grading for Neighborhoods 1.06 and 1.07, which include, respectively, 91 and 71 single-family residential pads and a recreation pad, has been 6960 Flanders Drive 13 Son Diego, California 92121-2974 t3 Telephone (858) 558-6900 o Fax (858) 558.6159 performed in substantial conformance with the recommendations of the project geotechnical report, and that the fill materials have been properly placed and compacted. The grading operations for Neighborhoods 1.06 and 1.07 were performed concurrently with the Southeast Elementary School Site (Neighborhood 1.04) within Phase 2 of The Greens development. GENERAL The grading contractor for the project was Sukut Incorporated of Oceanside, California. Grading plans for the project were prepared by Hunsaker and Associates and are entitled Grading and Erosion Control Plans for La Costa Greens Neighborhood 1.06 & 1.07, prepared by Hunsaker and Associates, City of Carlsbad approval date of May 10, 2005 (Drawing No. 427-6A). An electronic version of the grading plan was used as the base map for our "As-Graded" Geologic Map, Figures 1 through 6 (map pocket). The project geotechnical report is entitled Update Soil and Geologic Investigation, Villages of La Costa - The Greens, Carlsbad, California, dated June 25, 2001 (Project No. 06403-12-03). There is currently a temporary stockpile placed within Hale Place of Neighborhood 1.06. We ) understand this stockpile will be removed shortly. Geocon representatives should observe the area ) upon removal of the stockpile to determine impact to the street. References to elevations and locations herein were based on surveyors' or grade-checkers' stakes in the field and/or interpolation from the referenced grading plans. Geocon Incorporated does not provide surveying services and, therefore, has no opinion regarding the accuracy of the as-graded elevations or surface geometry with respect to the approved grading plans or proper surface drainage. GRADING Neighborhoods 1.06 and 1.07 are located within the Villages of La Costa - The Greens, Phase 2 development. Specifically, the neighborhoods are situated north of the Poinsettia Lane alignment, east of Alicante Road, and west of the Bressi Ranch development. Prior to grading, the site was primarily characterized by moderately sloping hillside terrain dissected by a series of tributary canyons that drain southward and westerly into San Marcos Creek. Grading for the site consisted of daylight cuts and fills to achieve finish-grade elevations. A portion of the southwestern margin along Poinsettia Lane within Neighborhood 1.07 was underlain by alluvium; due to the presence of a shallow groundwater table and close proximity to the existing roadway embankment, complete removal of alluvium was not practical and some alluvium was left in place. After fill materials were placed to attain design elevations, the area was surcharged with an additional 5 feet of fill and a settlement-monitoring program was implemented. The settlement- monitoring program included buried settlement plates and surface settlement monuments. Further Project No. 06403-52-19B - 2 - December 29, 2005 details of the settlement-monitoring program are discussed herein and the results are presented in Appendix A. Limits of the removals are depicted on the "As-Graded" Geologic Map, (Figure 6). Grading began with the removal of brush and vegetation from the area to be graded. The brush was then exported. Topsoil, colluvium, landslide debris, and alluvial soils were removed to expose formational material, where possible. Within these areas, and prior to placing fill, the exposed (overexcavated) ground surface was scarified, moisture conditioned, and compacted. Fill materials derived from on-site excavations were then placed and compacted in layers until the design elevations were attained. Fill was placed as a result of undercutting the cut portion of cut-fill transition pads. The building pads were undercut a minimum of 3 feet, sloping the bottom of the undercut at a gradient of approximately 1 percent toward the adjacent subdrain or deeper fill. Excavations within the sedimentary Santiago Formation produced predominately sandy clays and silty sands that were suitable for capping material. Soil fill was placed in lifts no thicker than would allow for adequate bonding and compaction. The soil was moisture conditioned as necessary and mixed during placement and then compacted utilizing conventional heavy-duty compaction equipment. During grading operations, compaction procedures were observed and in-place density tests were performed to evaluate the dry density and moisture content of the "soil" fill material. The in-place density tests were performed in general conformance with ASTM Test Method D 2922-01, Standard Test Method for Density of Soil and Soil-Aggregate in Place by Nuclear Methods. The results of the in-place dry density and moisture content tests are summarized in Table I. Grading for the Neighborhoods 1.06 and 1.07 were performed concurrently with The Greens Neighborhood 1.04 development. The results presented in Table I apply to Neighborhoods 1.06 and 1.07 only. As such, the test numbers are not in consecutive order. In general, the in-place dry density test results indicate that the fill soil has a dry density of least 90 percent of the laboratory maximum dry density near to slightly above optimum moisture content at the locations tested. The approximate locations of the in-place dry density tests are shown on the "As-Graded" Geologic Map (Figures 1 through 6). Laboratory tests were performed on samples of material used for fill to evaluate moisture-density relationships, optimum moisture content and maximum dry density (ASTM D 1557-02), shear strength (ASTM D 3080-03) expansion potential (ASTM D 4829-03), and water-soluble sulfate content (California Test No. 417). The results of the laboratory tests are summarized on Tables II through V. Project No. 06403-52-19B - 3 - December 29, 2005 Slopes The project cut and fill slopes were constructed at inclinations of 2:1 (horizontal: vertical) or flatter with maximum heights of approximately 35 and 48 feet, respectively. All slopes should be planted, drained, and maintained to reduce erosion. Slope irrigation should not be allowed to flow over the top of the slope. Cut slopes were observed and mapped by an engineering geologist for adverse geologic conditions that could affect slope stability. The cut slopes within Neighborhoods 1.06 and 1.07, in general, exposed discontinuous interbeds of sandstone and claystone. Bedding attitudes observed during grading indicate low angle of dips towards the west. It is our opinion that the cut slopes should be stable with respect to deep-seated failure. Based on geologic conditions encountered during our site investigation and grading operations, two buttress fills and five stability fills were constructed in Neighborhoods 1.06 and 1.07. The limits of the buttress and stability fills, including the keyway elevations, are depicted on Figures 1 through 6. Buttress and stability fill backcuts were excavated in general conformance with the design configurations recommended in the previously referenced update geotechnical investigation report. Once the design configuration had been achieved and observed by an engineering geologist, panel drains were installed on the backcuts approximately 30 feet on center and connected to heel drain systems. Additional panel drains were placed where seepage was observed on the backcuts. Three stability fills with maximum heights ranging up to approximately 40 feet were constructed within Neighborhood 1.06 to mitigate seepage observed at or near the bases of the cut slopes. Stability Fill No. IA was constructed east of Lots 66 through 68 on a west-facing slope that descends from the adjacent Bressi Ranch development. The heel drain for the northern half of Stability Fill No. 1 was connected to the storm drain system in the easement between Lots 69 and 70; the heel drain for the southern half should be ultimately connected to the storm drain in Halite Place near the northern boundary of Lot 65 by the master developer during improvement phases of development. Stability Fill No. 2 was constructed on the west-facing slope that fronts Alicante Road, west of Lots 82 through 86 in Neighborhood 1.06, to stabilize interbeds of sandstone and claystone which displayed signs surficial sloughage subsequent to grading. The associated heel drain is temporarily outlet at the southern margin of this stability fill for future connection to the storm drain system in Alicante Road. It is our understanding that the heel drain connection will be the responsibility of the master builder during future improvement phases. Stability Fill No. 3 was constructed east of Lots 70 through 74 on a west-facing slope that descends from the Bressi Ranch development. The heel drain is connected to the storm drain in the easement Project No. 06403-52-19B -4- December 29, 2005 between Lots 69 and 70 at the same structure that receives the heel drain for the northern half of Stability Fill No. 1. Two stability fills with maximum heights ranging up to approximately 45 feet were constructed with northeastern portion of Neighborhood 1.07. Stability Fill No. 4 was constructed north and east of Lots 5 through 9 on slope faces that descend from Bressi Ranch. The heel drain for Stability Fill No. 4 should be outlet into the brow ditch behind Lot 4. Stability Fill No. 5 was constructed north of Mica Road on a south-facing slope that descends to Neighborhood 1.07 from the adjacent Bressi Ranch development. The heel drain associated with Stability Fill No. 4 is connected the storm drain system in Mica Road at two locations: near Lot 66 and near lot 9. The two buttresses constructed in Neighborhood 1.06 were required due to the presence of bedding plane shears that were observed during our field investigation for The Greens development. As discussed in Sections 6.2.2.3 and 6.2.2.4 of the aforementioned update report, 40-foot-wide buttresses were recommended for the slopes where Buttress Nos. 1 and 2 are now located. As observed during grading operations, the bedding plane surfaces were generally observed to consist of discontinuous remolded clay lenses. Once the design configuration of each buttress had been achieved and observed by an engineering geologist, panel drains were installed on the backcuts and connected to heel drains. Buttress Nos. 1 and 2 were constructed in general accordance with the recommendations of the project geotechnical report. Buttress No. 1 was constructed north of Lots 55, 56, and 65 on a south-facing slope that descends from the Bressi Ranch development; Buttress No. 2 was constructed north of Lots 81 and 82, also on a south-facing slope descending from Bressi Ranch. The heel drain for Buttress No. 2 has been stubbed out at its low point for future connection to the storm drain system at the northern terminus of Halite Place. The heel drain for Buttress No. 1 is connected with the heel drain outlet for the southern half of Stability Fill No. 1A. Together, the heel drain should be connected to the storm drain. It is our understanding that the connection will be performed by the master builder during future improvement phases. Subdrains Canyon subdrains and heel drains were installed at the general locations shown on the "As-Graded" Geologic Map (Figures 1 through 6). In addition, the subdrains were "as-built" for location and elevation by the project civil engineer. The canyon subdrains generally consisted of a 6-to-8-inch- diameter PVC, Schedule 40, perforated pipe placed in 3/4-inch crushed aggregate gravel surrounded by Mirafi 140N (or equivalent) filter fabric. The drains were typically placed at least 10 feet below Project No. 06403-52-19B -5- December 29, 2005 I finish grade and constructed at a flow gradient of at least 1 percent. Heel drains from buttresses and stability fills were constructed with 4-inch-diameter Schedule 40 PVC perforated pipe placed within crushed aggregate gravel surrounded by Mirafi 140N (or equivalent) filter fabric. The heel drains that I have been temporarily outlet will be permanently connected to the storm drain system by the master developer during improvement phases. 1 Settlement Monitoring Program Settlement monuments were installed within the southwestern portion of the Neighborhood 1.07 to monitor potential settlement of the alluvium left in place during grading. The settlement monuments were surveyed on a weekly basis. The monitoring program was concluded when no significant settlement was shown for 4 consecutive weeks. Therefore, construction of site improvements and buildings can commence. The results of the settlement monument program are presented in Appendix A. Finish-grade Soil Conditions Observations and laboratory test results indicate that the prevailing soil conditions within the upper approximately 3 feet of finish-grade of the lots have an expansion potential of "low" to "high" (Expansion Index of 130 or less) as defined by Uniform Building Code (UBC) Table 18-I-B. Table VI and Table VII presents a summary of the indicated Expansion Index of the prevailing subgrade soil conditions for each lot within both neighborhoods. It should be noted that although rocks larger than 6 inch were not intentionally placed within the upper 4 feet of pad grades, some larger rocks might exist at random locations. Samples obtained for expansion testing were also subjected to water-soluble sulfate testing to evaluate the amount of water-soluble sulfates within the finish-grade soils. These test results are used to determine the potential for sulfate attack on normal Portland Cement concrete. The test results indicate sulfate contents that correspond to "negligible" to severe" sulfate exposure ratings. This laboratory data should be provided to the civil and structural engineers for possible modifications to concrete. Geocon Incorporated does not practice corrosion engineering. Therefore, results of these tests should be reviewed by a corrosion consultant, and appropriate recommendations should be implemented during design and construction of proposed improvements. The results of the water-soluble sulfate tests are summarized on Table V. Project No. 06403-52-19B -6- December 29, 2005 SOIL AND GEOLOGIC CONDITIONS The soil and geologic conditions encountered during grading were found to be similar to those described in the project geotechnicaireport. The Santiago Formation (Ts) was exposed at grade on cut slopes, cut pads, within cleanouts, and in pad undercuts. The Santiago Formation generally varied from very hard to dense, silty to sandy claystone to dense, silty sandstone. Stream-deposited Terrace Deposits (Qt) were exposed within cleanouts in localized portions of Neighborhoods 1.06 and 1.07 and generally consisted of medium dense to dense, silty to clayey sandstone. Alluvium (Qal) was encountered during grading operations on the southwestern margin of the site and generally varied from medium dense to dense, moist to wet, silty to clayey, fine sand. It should be noted that this area of alluvium could not be entirely removed due to the presence of groundwater at the time of grading. Previously placed compacted fill soil (Qpt) placed during grading of Bressi Ranch also exists beneath compacted fill materials placed during the grading of Lots 74 through 81 in Neighborhood 1.06. Compacted soil was placed in areas of fill and is designated as Qcf on Figures 1 through 6. In addition, compacted fill soil placed in undercut areas is designated as Quc. Table VIII and Table IX present a summary of as-graded building pad conditions for each lot for both neighborhoods. The enclosed "As-Graded" Geologic Map (Figures 1 through 6) depicts the general geologic conditions observed. No soil or geologic conditions were observed during grading that would preclude the continued development of the property as planned. CONCLUSIONS AND RECOMMENDATIONS 1.0 General 1.1 Based on observations and test results, it is the opinion of Geocon Incorporated that the grading to which this report pertains has been performed in substantial conformance with the recommendations of the previously referenced project soils report and the geotechnical requirements of the grading plans. Soil and geologic conditions encountered during grading that differ from those anticipated in the project soils report are not uncommon. Where such conditions required a significant modification to the recommendations of the project soils report, they have been described herein. 1.2 No soil or geologic conditions were observed during grading that would preclude the continued development of the property as planned. Based on laboratory test results and field observations, it is the opinion of Geocon Incorporated that the fill soils observed and tested as part of the grading for this neighborhood were generally compacted to a dry density of at least 90 percent of the laboratory maximum dry density near to slightly above optimum moisture content. Project No. 06403-52-I9B -7 - December 29, 2005 2.0 Future Grading 2.1 Any additional grading performed at the site should be accomplished in conjunction with our observation and compaction testing services. Grading plans for any future grading should be reviewed by Geocon Incorporated prior to finalizing. All trench and wall backfill should be compacted to a dry density of at least 90 percent of the laboratory maximum dry density near or above optimum moisture content. This office should be notified at least 48 hours prior to commencing additional grading or backfill operations. 3.0 Update Geotechnical Report 3.1 An update geotechnical report should be prepared by Geocon Incorporated for Neighborhoods 1.06 and 1.07. The report should include foundation recommendations for reducing the detrimental effect of expansive soil and differential fill settlement across individual structures. In addition, retaining wall recommendations and seismic design criteria should be included, as well as other considerations such as concrete flatwork. 4.0 Slope Maintenance 4.1 Slopes that are steeper than 3:1 (horizontal:vertical) may, under conditions that are both difficult to prevent and predict, be susceptible to near-surface (surficial) slope instability. The instability is typically limited to the outer 3 feet of a portion of the slope and usually does not directly impact the improvements on the pad areas above or below the slope. The occurrence of surficial instability is more prevalent on fill slopes and is generally preceded by a period of heavy rainfall, excessive irrigation, or the migration of subsurface seepage. The disturbance and/or loosening of the surficial soils, as might result from root growth, soil expansion, or excavation for irrigation lines and slope planting, may also be a significant contributing factor to surficial instability. It is therefore recommended that, to the maximum extent practical: (a) disturbed/loosened surficial soils be either removed or properly recompacted; (b) irrigation systems be periodically inspected and maintained to eliminate leaks and excessive irrigation; and (c) surface drains on and adjacent to slopes be periodically maintained to preclude ponding or erosion. It should be noted that although the incorporation of the above recommendations should reduce the potential for surficial slope instability, it will not eliminate the possibility and, therefore, it may be necessary to rebuild or repair a portion of the project's slopes in the future. Project No. 06403-52-19B 4- December 29, 2005 5.0 Drainage 5.1 Adequate drainage provisions are critical to the future performance of the project. Under no circumstances should water be allowed to pond. The building pads and sheet-graded areas should be properly finish-graded so that drainage water is directed away from foundations, pavements, concrete slabs, and slope tops to controlled drainage devices. 5.2 All underground utilities should be leak free. Utility and irrigation lines should be checked periodically for leaks for early detection of water infiltration and detected leaks should be repaired promptly. Detrimental soil movement could occur if water is allowed to infiltrate the soil over a prolonged period. 5.3 Landscaping planters adjacent to paved areas are not recommended due to the potential for surface or irrigation water to infiltrate the pavement's subgrade and base course. We recommend that subdrains to collect excess irrigation water and transmit it to drainage structures or impervious above-grade planter boxes be used. In addition, where landscaping is planned adjacent to the pavement, we recommend construction of a cutoff wall along the edge of the pavement that extends at least 6 inches below the bottom of the base material. LIMITATIONS The conclusions and recommendations contained herein apply only to our work with respect to grading and represent conditions at the date of our final observation on October 31, 2005. Any subsequent grading should be done in conjunction with our observation and testing services. As used herein, the term "observation" implies only that we observed the progress of the work with which we agreed to be involved. Our services did not include the evaluation or identification of the potential presence of hazardous or corrosive materials. Our conclusions and opinions as to whether the work essentially complies with the job specifications are based on our observations, experience and test results. Subsurface conditions, and the accuracy of tests used to measure such conditions, can vary greatly at any time. We make no warranty, expressed or implied, except that our services were performed in accordance with engineering principles generally accepted at this time and location. We will accept no responsibility for any subsequent changes made to the site by others, by the uncontrolled action of water, or by the failure of others to properly repair damages caused by the uncontrolled action of water. The findings and recommendations of this report may be invalidated wholly or partially by changes outside our control. Therefore, this report is subject to review and should not be relied upon after a period of three years. Project No. 06403-52-19B - 9 - December 29, 2005 Should you have any questions regarding this report, or if we may be of further service, please contact the undersigned at your convenience. Very truly yours, GEO CON INCORPORATED RO Shane Rodacker RCE 63291 Cn CEG 1778 CEO 1524 JAL Q SR:AS:JH:anh OF AV MIS 14 (6/del) Addressee sm 0 &WRA IL cum= CS Mob i) kOFcAt' Project No. 06403-52-198 -10- December 29,2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4 Dry Moist. Rel. Re!. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location ('t) No. (%) (pef) (%) (%) (%) I 04/01105 Unit 1.07; Lot 1 1 A 04/01/05 Unit 1.07; Lot I 2 04101105 Unit 1.07; Lot 1 3 04/01/05 Unit 1.07; Lot I 4 04/01/05 Unit 1.07; Lot I 5 -------------------------------------------------------------------------- 04/14/05 Unit 1.07; Lot 6 04/04/05 Unit 1.07; Lot I 7 04/04/05 Unit 1.07; Lot I 8 04/04/05 Unit 1.07; Lot 2 9 04/04/05 Unit 1:07; Lot I 20 -------------------------------------------------------------------------- 04/07/05 Unit 1.06; Lot 92 20 A 04/07/05 Unit 1.06; Lot 92 SZ 21 04/07/05 Unit 1.06; Lot 92 22 04/08/05 Unit 1.06; Pyrite Av 10+60 23 04/08/05 Unit 1.06; Lot 92 -------------------------------------------------------------------------- 24 04/11/05 Unit 1.07; Lot I 35 04/12/05 Unit 1.07; Lot 1 60 04/18/05 Unit 1.07; Lot 49 61 04/18/05 Unit 1.07; Lot 47 61 A 04/18/05 Unit 1.07; Lot 47 62 04/18/05 Unit 1.07; Lot 44 63 04/18/05 Unit 1.07; Lot 48 64 04/18/05 Unit 1.07; Lot 46 65 04/18/05 Unit 1.07; Lot 45 66 04/18/05 Unit 1.07; Lot 44 67 04/19/05 Unit 1.07; Lot 45 68 04/19/05 Unit 1.07; Geode St 16+30 69 04/19/05 Unit 1.07; Geode St 16+65 70 04/19/05 Unit 1.07; Geode St 17+35 71 04/19/05 Unit 1.07; Geode St 17+00 72 04/19/05 Unit 1.07; Geode St 15+00 95 04/22/05 Unit 1.07; Lot 2 96 04/22/05 Unit 1.07; Mica Rd 38+90 101 04/25/05 Unit 1.07; Lot 2 107 04/26/05 Unit 1.07; Lot 3 108 04/26/05 Unit 1.07; Lot 2 116 04/26/05 Unit 1.07; Lot 3 120 04/27/05 Unit 1.07; Geode St 16+80 134 05/03/05 Unit 1.07; Lot 33 135 05/03/05 Unit 1.07; Titanite P111+00 142 05/04/05 Unit 1.07; Lot 33 154 05/10/05 Unit 1.07; Lot 50 156 05/10/05 Unit 1.07; Titanite P112+30 157 05/10/05 Unit 1.07; Titanite P112+80 158 05/10/05 Unit 1.07; Lot 33 lii 16 0 107.2 18.4 89 90 111 16 0 109.4 18.1 91 90 114 16 0 110.2 18.8 92 90 116 16 0 109.9 17.7 92 90 119 16 0 110.8 17.5 92 90 123 16 0 ----------------------------------------------------------------------------------------- 108.6 17.9 90 90 125 .16 0 110.9 17.2 92 90 126 16 0 109.7 17.1 91 90 130 9 0 112.8 14.7 93 90 123 16 0 108.9 18.3 91 90 184 17 0 102.6 19.8 88 90 184 17 0 104.9 18.6 90 90 187 17 0 105.1 18.3 90 90 190 17 0 104.5 18.8 90 90 186 17 0 - 105.9 17.4 91 90 133 77 0 109.3 17.8 90 90 137 17 0 108.5 16.7 93 90 117 78 0 112.4 17.2 91 90 116 77 0 105.2 20.1 87 90 116 77 0 108.6 19.6 90 90 106 77 0 108.9 18.3 90 90 115 77 0 111.6 16.4 92 90 114 78 0 110.9 14.7 90 90 113 3 0 107.7 17.5 91 90 110 3 0 106.8 18.9 90 90 112 77 0 110.4 16.8 91 90 113 77 0 109.9 17.3 91 90 116 82 0 110.3 16.5 92 90 118 82 0 109.2 17.8 91 90 119 82 0 110.5 17.1 92 90 115 82 0 ------------------------------------------------------------------------------------------- 108.7 17.4 91 90 133 75 0 105.7 17.2 93 90 131 75 0 103.6 18.1 91 90 136 82 0 108.2 17.1 90 90 140 82 0 108.4 15.8 90 90 141 82 0 ------------------------------------------------------------------------------------------- 109.1 16.3 91 90 145 19 0 101.8 20.1 91 90 121 82 0 109.0 16.3 91 90 108 77 0 110.1 16.6 91 90 110 77 0 109.7 15.5 91 90 111 77 0 110.3. 15.3 91 90 114 29 0 110.8 15.2 91 90 118 33 0 107.3 15.1 92 90 119 33 0 106.8 16.2 92 90 120 33 0 108.3 17.5 93 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4 Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location No. (%) (pcf) (%) (%) (%) 159 05/11/05 Unit 1.07; Lot 50 124 82 0 104.1 16.7 87 90 159 A 05/11/05 Unit 1.07; Lot 50 124 82 0 108.9 15.8 91 90 160 05/11/05 Unit 1.07; Lot 50 125 82 0 108.8 16.2 91 90 162 05/11/05 Unit 1.07; Titanite P111+40 126 77 0 110.5 15.6 91 90 164 05/12/05 Unit 1.07; Lot 51 118 77 0 110.2 13.0 91 90 165 05/12105 Unit 1.07; Titanite P115+35 120 10 0 106.1 15.3 93 90 166 05/12/05 Unit 1.07; Titanite P114+00 119 19 0 101.9 18.6 91 90 167 05/12/05 Unit 1.07; Lot 18 122 19 0 102.2 19.3 91 90 • 190 05/18/05 Unit 1.07; Lot 33 124 75 0 103.5 18.8 91 90 191 05/18/05 Unit 1.07; Titanite P113+70 120 75 0 104.7 19.3 92 90 192 05/18/05 Unit 1.07; Lot 19 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 129 75 0 102.4 16.9 90 90 193 05/18/05 Unit 1.07; Lot 33 128 77 0 110.8 15.7 92 90 194 05/18/05 Unit 1.07; Titanite PI 14+70 118 23 0 106.1 18.6 93 90 195 05/18/05 Unit 1.07; Lot 18 125 23 0 104.4 17.8 91 90 196 05/18/05 Unit 1.07; Lot 19 133 23 0 101.2 19.7 89 90 • 196 A 05/19/05 Unit 1.07; Lot 19 133 23 0 104.2 18.3 91 90 197 05/18/05 Unit 1.07; Lot 20 135 23 0 99.6 20.1 87 90 197 A 05/19/05 Unit 1.07; Lot 20 135 23 0 105.0 19.2 92 90 207 05/20/05 Unit 1.07; Lot 71 155 19 0 104.8 16.3 94 90 210 05/20/05 Unit 1.07; Lot 65 - 160 86 0 110.2 14.7 91 90 212 05/23/05 Unit 1.07; Lot 67 163 86 0 108.6 14.0 90 90 214 05/23/05 Unit 1.07; Lot 67 167 86 0 109.3 15.1 90 90 220 05/24/05 Unit 1.07; Lot 18 128 86 0 109.9 13.3 91 90 221 05/24/05 Unit 1.07; Lot 51 123 86 0 111.1 13.8 92 90 222 05/24/05 Unit 1.07; Lot 51 126 86 0 109.5 13.4 91 90 223 05/25/05 Unit 1.07; Lot 17 130 86 0 110.8 15.8 92 90 224 05/25/05 Unit 1.07; Lot 50 127 17 0 105.9 14.1 91 90 • 225 05/25/05 Unit 1.07; Lot 31 130 17 0 106.5 16.2 91 90 226 05/25/05 Unit 1.07; Lot 29 133 75 0 102.7 16.6 90 90 227 05/25/05 Unit 1.07; Titanite P111+90 129 75 0 103.5 17.4 91 90 228 05/25/05 Unit 1.07; Lot 11 153 75 0 102.9 16.8 90 90 229 05/25/05 Unit 1.07; Lot 22 150 75 0 103.3 17.1 91 90 230 05/25/05 Unit 1.07; Lot 12 156 75 0 104.7 16.2 92 90 231 05/25/05 Unit 1.07; Lot 11 158 75 0 103.8 16.6 91 90 • 232 05/26/05 Unit 1.07; Lot 19 138 75 0 103.4 16.0 91 90 233 05/26/05 Unit 1.07; Titanite P114+80 130 19 0 101.6 17.9 91 90 234 05/26/05 Unit 1.07; Lot 20 141 19 0 102.1 18.7 91 90 235 05/26/05 Unit 1.07; Lot 13 161 19 0 101.5 18.4 91 90 SZ 236 05/26/05 Unit 1.07; Stab Fill #4 174 90 0 104.2 14.6 92 90 SZ 237 05/26/05 Unit 1.07; Stab Fill #4 172 90 0 105.7 15.8 93 90 SZ 238 05/26/05 Unit 1.07; Stab Fill #4 178 90 0 106.8 15.5 94 90 SZ 239 05/26/05 Unit 1.07; Stab Fill #4 177 90 0 104.1 16.3 92 90 • 240 05/27/05 Unit 1.07; Lot 14 163 90 0 103.4 18.0 91 90 241 05/27/05 Unit 1.07; Lot 10 164 90 0 104.6 14.9 92 90 242 05/27/05 Unit 1.07; Lot 10 166 90 0 103.4 15.8 91 90 Project No. 06403-52-19B -• December 29, 2005 11 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4' Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location No. (%) (pcf) (%) (%) (%) 243 05/31/05 Unit 1.07; Lot 19 244 05/31/05 Unit 1.07; Lot 11 245 05/31/05 Unit 1.07; Mica Rd 24+75 SZ 246 05/31/05 Unit 1.07; Stab Fill #4 SZ 247 05/31/05 Unit 1.07; Stab Fill 44 SZ 248 ------------------------------------------------------------------------ 05/31/05 Unit 1.06; Lot 92 249 06/01/05 Unit 1.06; Lot 92 250 06/01/05 Unit 1.07; Lot 11 251 06/01/05 Unit 1.07; Lot 18 252 06/01/05 Unit 1.07; Lot 20 253 06/01/05 Unit 1.07; Lot 21 254 06/01/05 Unit 1.06; Lot 92 255 06/01/05 Unit 1.06; Halite P126+35 256 06/01/05 Unit 1.06; Lot 91 256 A 06/01/05 Unit 1.06; Lot 91 258 --------------------------------------------------------- 06/01/05 Unit 1.07; Lot 51 260 06/02/05 Unit 1.07; Lot 52 261 06/02/05 Unit 1.07; Lot 51 262 06/02/05 Unit 1.06; Halite P1 25+10 263 06/02/05 Unit 1.06; Lot 91 265 06/03/05 Unit 1.07; Lot 51 266 06/03/05 Unit 1.07; Lot 52 267 06/03/05 Unit 1.07; Titanite P111+90 268 06/03/05 Unit 1.07; Titanite P112+45 269 06/03/05 Unit 1.07; Lot 53 270 06/03/05 Unit 1.06; Lot 91 270 A 06/03/05 Unit 1.06; Lot 91 271 06/06/05 Unit 1.07; Lot 12 SZ 272 06/06/05 Unit 1.07; Lot 10 273 06/06/05 Unit 1.07; Lot 10 274 06/06/05 Unit 1.07; Mica Rd 25+40 SZ 275 06/07/05 Unit 1.07; Stab Fill #4 SZ 276 06/07/05 Unit 1.07; Stab Fill #4 SZ 277 06/07/05 Unit 1.07; Stab Fill #4 SZ 278 06/07/05 Unit 1.07; Stab Fill #4 279 06/07/05 Unit 1.07; Lot 280 06/07/05 Unit 1.07; Lot 64 281 06/07/05 Unit 1.07; Lot 67 282 06/07/05 Unit 1.07; Lot 69 283 06/07/05 Unit 1.07; Lot 68 284 06/08/05 Unit 1.07; Lot 6 285 06/08/05 Unit 1.07; Lot 8 SZ 286 06/08/05 Unit 1.07; Stab Fill #4 SZ 287 06/08/05 Unit 1.07; Stab Fill #4 SZ 288 06/08/05 Unit 1.07; Stab Fill #4 142 19 0 100.9 19.0 90 90 169 19 0 101.2 16.4 91 90 172 19 0 102.7 18.1 92 90 179 90 0 105.4 14.8 93 90 174 90 0 106.1 15.2 93 90 198 90 0 103.3 17.3 91 90 194 90 0 105.3 17.4 93 90 171 90 0 102.6 17.6 90 90 140 17 0 106.5 15.8 91 90 146 75 0 104.0 16.9 91 90 148 17 0 106.3 15.0 91 90 196 17 0 105.6 13.8 91 90 200 17 0 104.7 14.1 90 90 201 90 0 101.2 10.6 89 90 - 201 90 0 103.8 14.5 91 90 136 90 0 104.6 14.8 92 90 138 90 0 103.1 16.5 91 90 140 90 0 102.5 15.2 90 90 198 90 0 102.9 14.8 91 90 201 90 0 104.1 14.3 92 90 143 90 0 103.7 16.3 91 90 145 90 0 104.9 15.5 92 90 131 19 0 102.4 18.9 92 90 134 19 0 102.5 19.3 92 90 147 19 0 102.1 17.6 91 90 205 90 0 101.2 8.2 89 90 205 90 0 103.7 14.1 91 90 164 90 0 104.4 17.4 92 90 175 90 0 102.7 14.6 90 90 178 19 0 102.1 16.3 91 90 181 19 0 ------------------------------------------------------------------------------------------------- 101.9 17.2 91 90 182 90 0 103.6 15.7 91 90 185 90 0 104.7 14,9 92 90 189 90 0 104.8 15.3 92 90 192 90 0 105.1 16.4 92 90 154 90 0 106.6 14.8 94 90 168 88 0 105.0 18.9 93 90 170 88 0 103.4 18.4 91 90 173 88 0 104.5 19.2 92 90 175 88 0 105.1 18.7 93 90 158 88 0 ------------------------------------------------------------------------------------------------- 103.8 16.4 92 90 166 88 0 102.9 16.7 91 90 195 88 0 102.4 15.9 90 90 196 88 0 103.7 17.1 92 90 200 19 0 100.9 18.4 90 90 Project No. 06403-52-19B - . December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4' Dry Moist. Re!. Rel. Depth Curve Rock Dens. Cont. Comp. Camp. Test No. Date Location (ft) No. (%) (Pa) (%) (%) (%) SZ 289 06/08/05 Unit 1.07; Stab Fill #4 - 205 19 0 101.3 17.2 91 90 290 06/08/05 Unit 1.07; Lot 65 176 19 0 101.8 16.5 91 90 291 06/08/05 Unit 1.07; Lot 59 158 88 0 103.9 16.6 92 90 292 06/08/05 Unit 1.07; Lot 58 155 88 0 104.7 15.5 92 90 296 06/09/05 Unit 1.07; Lot 71 176 88 0 103.3 17.8 91 90 297 06/09/05 Unit 1.07; Lot 66 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 178 88 0 102.7 16.5 91 90 298 06/09/05 Unit 1.07; Lot 56 156 19 0 101.7 16.4 91 90 299 06/09/05 Unit 1.07; Lot 58 164 88 0 104.8 16.1 93 90 303 06/09/05 Unit 1.07; Lot 63 179 19 0 100.9 16.3 90 90 304 06/10/05 Unit 1.07; Lot 59 171 19 0 101.6 17.3 91 90 305 06/10/05 Unit 1.07; Lot 57 166 19 0 102.1 16.5 91 90 306 06/10/05 Unit 1.07; Lot 55 163 19 0 101.9 17.4 91 90 307 06/10/05 Unit 1.07; Lot 53 150 19 0 102.2 16.8 91 90 308 06/10/05 Unit 1.07; Lot 54 155 19 0 1011 17.9 90 90 SZ 309 06/10/05 Unit 1.06; Buttress Fill #1 259 880103.5 16.1 91 90 - - SZ 310 06/10/05 Unit 1.06; Buttress Fill #1 262 88 0 102.9 15.7 91 90 311 06/13/05 Unit 1.07; Lot 55 161 88 0 104.3 16.2 92 90 312 06/13/05 Unit 1.07; Lot 50 150 88 0 104.8 15.9 93 90 313 06/13/05 Unit 1.07; Lot 52 153 88 0 105.1 15.6 93 90 SZ 316 06/13/05 Unit 1.06; Buttress Fill #1 266 88 0 104.1 16.3 92 90 326 06/15/05 Unit 1.07; Lot 56 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 167 88 0 104.4 16.9 92 90 327 06/15/05 Unit 1.07; Lot 59 174 88 0 103.7 17.6 92 90 328 06/15/05 Unit 1.07; Lot 22 157 17 0 108.5 14.7 93 90 329 06/15/05 Unit 1.07; Lot 19 152 88 0 104.8 16.3 93 90 330 06/15/05 Unit 1.07; Brookite Ct 12+10 166 88 0 102.7 17.4 91 90 331 06/15/05 •Unit 1.07; Lot 11 174 88 0 103.1 18.2 91 90 332 06/16/05 Unit 1.07; Lot 30 135 23 0 104.9 16.7 92 90 333 06/16/05 Unit 1.07; Lot 28 132 23 0 105.1 16.9 92 90 334 06/16/05 Unit 1.07; Lot 48 123 23 0 100.2 12.5 88 90 334A 06/16/05 Unit 1.07; Lot 48 123 23 0 104.2 16.6 91 90 335 06/16/05 Unit 1.07; Lot 45 120 23 0 103.9 16.8 91 90 336 06/16/05 Unit 1.07; Lot 32 129 88 0 103.3 15.5 91 90 337 06/17/05 Unit 1.07; Lot 30 130 88 0 101.2 16.4 89 90 337 A 06/17/05 Unit 1.07; Lot 30 130 88 0 102.9 16.2 91 90 338 06/17/05 Unit 1.07; Lot 28 142 77 0 109.9 15.4 91 90 339 06/17/05 Unit 1.07; Lot 32 134 77 0 110.7 14.8 92 90 340 06/17/05 Unit l.07; Lot 31 138 77 0 109.8 16.3 91 90 341 06/17/05 Unit 1.07; Lot 30 140 77 0 110.1 14.5 91 90 342 06/17/05 Unit 1.07; Lot 29 146 77 0 109.6 18.5 91 90 343 06/17/05 Unit 1.07; Lot 28 150 77 0 109.3 18.1 90 90 344 06/20/05 Unit 1.07; Lot 22 150 77 0 108.5 15.2 90 90 345 06/20/05 Unit 1.07; Lot 14 155 88 0 103.1 16.4 91 90 346 06/20/05 Unit 1.07; Lot 21 156 17 0 106.4 17.0 91 90 347 06/20/05 Unit 1.07; Lot 18 145 17 0 108.1 17.2 93 90 348 06/20/05 Unit 1.07; Lot 18 154 88 0 104.5 16.3 92 90 Project No. 06403-52-19B December 29, 2005 TABLE SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4" Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location NO. (%) (pcf) (%) (%) (%) 349 06/20/05 Unit 1.07; BrookiteCt 10+35 350 06/20/05 Unit 1.07; Lot 17 351 06/20/05 Unit 1.07; Lot 18 352 06/20/05 Unit 1.07; Lot 20 353 06/20/05 Unit 1.07; Lot 13 354 06/20/05 Unit 1.07; Lot 14 355 06/20/05 Unit 1.07; Lot 46 356 06/21/05 Unit 1.07; Lot 42 357 06/21/05 Unit 1.07; Lot 40 358 06/21/05 Unit 1.07; Lot 39 ----------------------------------------------------------------------- 359 06/21/05 Unit 1.07; Lot 43 360 06/21/05 Unit 1.07; Lot 41 361 06/21/05 Unit 1.07; Lot 39 S2 362 06/21/05 Unit 1.07; Lot 42 363 06/22/05 Unit 1.07; Lot 15 364 06/22/05 Unit 1.07; Lot 17 365 06/22/05 Unit 1.07; Lot 17 366 06/22/05 Unit 1.07; Lot 18 367 06/22/05 Unit 1.07; Lot 20 368 06/22/05 Unit 1.07; Lot 21 369 06/22/05 Unit 1.07; Lot 23 370 06/22/05 Unit 1.07; Lot 23 371 06/22/05 Unit 1.07; Lot 19 372 06/22/05 Unit 1.07; Lot 21 SZ 373 06/23/05 Unit 1.07; Lot 21 ---------------------------------------------------------------------------------- 374 06/23/05 Unit 1.07; Lot 19 315 06/23/05 Unit 1.07; Lot 43 376 06/23/05 Unit 1.07; Lot 43 377 06/23/05 Unit 1.07; Lot 43 378 06/23/05 Unit 1.07; Lot 43 379 06/24/05 Unit 1.07; Lot 21 380 06/24/05 Unit 1.07; Lot 22 381 06/24/05 Unit 1.07; Lot 23 382 06/24/05 Unit 1.07; Lot 34 383 06/24/05 Unit 1.07; Lot 35 384 06/27/05 Unit 1.07; Geode St 14+30 385 06/27/05 Unit 1.07; Lot 43 386 06/27/05 Unit 1.07; Lot 42 387 06/27/05 Unit 1.07; Lot 40 388 06/27/05 Unit 1.07; Stab Fill #5 156 88 0 105.6 16.9 93 90 147 88 0 107.7 16.1 95 90 155 19 0 102.7 16.5 92 90 157 19 0 101.9 17.3 91 90 168 19 0 101.2 18.2 91 90 166 19 0 ----------------------------------------------------------------------------------- 100.7 19.8 90 90 124 88 0 103.9 17.6 92 90 104 19 0 101.3 18.3 91 90 107 19 0 102.7 19.1 92 90 106 19 0 101.5 19.9 91 90 108 17 0 106.2 16.9 91 90 lii 17 0 106.8 19.3 92 90 112 19 0 103.1 20.2 92 90 113 19 0 101.6 16.3 91 90 158 19 0 101.7 15.7 91 90 150 19 0 ---------------------------------------------------------------------------------- 100.9 16.6 90 90 158 88 0 102.9 15.2 91 90 161 88 0 104.5 16.8 92 90 160 88 0 103.3 17.1 91 90 165 88 0 103,5 16.5 91 90 170 86 0 112.0 13.6 93 90 172 86 0 113.4 13.2 94 90 166 88 0 103.0 18.5 91 90 170 88 0 104.9 16.3 93 90 168 17 0 106.0 14.5 91 90 173 17 0 ----------------------------------------------------------------------------------- 107.1 15.6 92 90 103 88 0 103.8 17.7 92 90 96 88 0 102.5 16.3 91 90 100 17 0 108.1 15.2 93 90 106 17 0 106.5 17.0 91 90 172 17 0 108.0 14.1 93 90 173 88 0 102.5 18.3 91 90 174 88 0 103.6 16.5 92 90 105 88 0 102.3 16.5 90 90 109 88 0 103.4 15.5 91 90 111 90 0 ---------------------------------------------------------------------------------- 105.6 15.1 93 90 112 90 0 103.9 14.5 91 90 114 90 0 105.8 17.1 93 90 117 90 0 104.4 15.6 92 90 177 90 0 105.2 14.3 93 90 180 88 0 103.7 17.7 92 90 182 88 0 102.9 16.2 91 90 185 90 0 102.6 14.6 90 90 190 90 0 103.9 14.1 91 90 193 90 0 103.2 14.8 91 90 389 06/27/05 Unit 1.07; Stab Fill #5 390 06/27/05 Unit 1.07; Stab Fill #5 393 06/28/05 Unit 1.07; Stab Fill #5 394 06/28/05 Unit 1.07; Stab Fill #5 395 06/28/05 Unit 1.07; Stab Fill #5 Project No. 06403-5219B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Test No. Date Elev. Plus Field Field Field Reqd. or 3/4" Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Conip. Location (ft) No. (%) (pcf) (%) (%) (%) 396 06/28/05 Unit 1.07; Stab Fill #5 397 06/28/05 Unit 1.07; Stab Fill #5 398 06/28/05 Unit 1.07; Lot 17 399 06/28/05 Unit 1.07; Lot 17 400 06/28/05 Unit 1.07; Lot 20 401 06/28/05 Unit 1.07; Lot 24 402 06/29/05 Unit 1.07; Stab Fill #5 403 06/29/05 Unit 1.07; Stab Fill #5 404 06/29/05 Unit 1.07; Stab Fill #5 405 06/29/05 Unit 1.07; Stab Fill #5 406 06/29/05 Unit 1.07; Stab Fill #5 407 06/29/05 Unit 1.07; Lot 17 408 06/29/05 Unit 1.07; Lot 17 409 06/29/05 Unit 1.07; Lot 16 410 06/29/05 Unit 1.07; Lot 20 411 06129/05 Unit 1.07; Lot 14 412 06/30/05 Unit 1.07; Lot 15 413 06/30/05 Unit 1.07; Brookite Ct 10+00 414 06/30/05 Unit 1.07; Lot 15 415 06/30/05 Unit 1.07; Lot 15 416 ------------------------------------------------------------------- 06/30/05 Unit 1.07; Lot 16 417 06/30/05 Unit 1.07; Lot 16 418 06/30/05 Unit 1.07; Lot 17 419 06/30/05 Unit 1.06; Lot 42 420 06/30/05 Unit 1.07; Lot 23 421 06/30/05 Unit 1.07; Lot 18 ST 429 07/01/05 Unit 1.07; Stab Fill #4 ST 430 07/01/05 Unit 1.07; Stab Fill #4 ST 431 07/01/05 Unit 1.07; Stab Fill #4 432 07/05/05 Unit 1.07; Lot 34 433 ------------------------------------------------------------------ 07/05/05 Unit 1.07; Lot 39 434 07/05/05 Unit 1.07; Lot 43 435 07/05/05 Unit 1.07; Lot 38 436 07/05/05 Unit 1.07; Lot 41 437 -------------------------------------------------------------- 07/05/05 Unit 1.07; Lot 43 438 07/05/05 Unit 1.07; Lot 36 439 07/05/05 Unit 1.07; Lot 34 440 07/05/05 Unit 1.07; Lot 41 442 07/06/05 Unit 1.07; Lot 38 443 07/06/05 Unit 1.07; Lot 42 444 07/06/05 Unit 1.07; Lot 43 445 07/06/05 Unit 1.07; Geode St 13+70 446 07/06/05 Unit 1.07; Lot 39 447 07/06/05 Unit 1.07; Lot 35 448 07/06/05 Unit 1.07; Lot 49 195 90 0 104.9 14.3 92 90 190 90 0 102.5 15.6 90 90 162 88 0 103.1 16.4 91 90 165 88 0 102.3 17.1 90 90 175 90 0 103.8 17.5 91 90 178 90 0 ----------------------------------------------------------------------------------------------- 104.2 16.7 92 90 189 88 0 104.1 16.2 92 90 185 88 0 103.3 15.8 91 90 193 88 0 102.9 16.5 91 90 197 90 0 102.7 15.2 90 90 196 90 0 ----------------------------------------------------------------------------------------------- 102.6 14.7 90 90 169 88 0 103.3 16.1 91 90 174 88 0 103.8 16.6 92 90 168 90 0 105.9 14.5 93 90 179 88 0 104.7 16.3 92 90 174 88 0 ----------------------------------------------------------------------------------------------- 103.0 16.9 91 90 161 90 0 104.4 15.6 92 90 163 90 0 104.2 18.1 92 90 165 90 0 103.0 17.9 91 90 171 88 0 102.7 18.8 91 90 171 88 0 ----------------------------------------------------------------------------------------------- 103.1 17.6 91 90 175 88 0 102.3 15.7 90 90 179 88 0 103.6 16.3 92 90 179 90 0 105.2 16.4 93 90 180 90 0 104.1 15.5 92 90 183 90 0 ----------------------------------------------------------------------------------------------- 105.7 14.8 93 90 194 88 0 103.7 16.9 92 90 183 88 0 101.9 18.1 90 90 197 88 0 103.1 16.4 91 90 112 90 0 103.8 14.5 91 90 110 90 0 103.3 14.8 91 90 114 90 0 101.9 17.4 90 90 115 90 0 102.7 15.3 90 90 116 90 0 102.1 14.9 90 90 118 90 0 102.9 15.1 91 90 115 90 0 103.2 18.4 91 90 119 90 0 102.8 17.6 90 90 120 74 0 113.4 14.0 92 90 118 74 0 111.7 12.4 90 90 120 74 0 112.6 11.3 91 90 122 74 0 112.2 11.5 91 90 119 74 0 113.5 11.8 92 90 121 90 0 104.7 14.1 92 90 123 90 0 102.9 14.9 91 90 121 90 0 103.6 15.1 91 90 Project No. 06403-52-19B December 29, 2005 I TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4 Dry Moist. Rd. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location (ft)No. (%) (pcf) (%) (%) (%) 449 07/07/05 Unit 1.07; Lot 47 126 90 0 102.5 14.7 90 90 451 07/07/05 Unit 1.07; Lot 43 124 90 0 103.1 15.8 91 90 452 07/07/05 Unit 1.07; Lot 39 126 90 0 102.3 14.3 90 90 453 07/07/05 Unit 1.07; Lot 40 123 90 0 102.8 14.9 90 90 454 07/08/05 Unit 1.07; Lot 34 126 90 0 103.9 14.5 91 90 455 07/08/05 Unit 1.07; Lot 43 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 127 90 0 102.6 14.7 90 90 456 07/08/05 Unit 1.07; Lot 39 129 17 0 107.7 13.2 92 90 457 07/08/05 Unit 1.07; Lot 38 131 17 0 107.5 13.8 92 90 458 07/08/05 Unit 1.07; Lot 35 129 17 0 106.1 14.3 91 90 59 07/08/05 Unit 1.07; Lot 41 130 90 0 104.0 - 14.9 91 90 460 07/08/05 Unit 1.07; Lot 43 131 90 0 105.2 14.7 93 90 461 07/08/05 Unit 1.07; Lot 40 133 90 0 103.8 15.5 91 90 462 07/11/05 Unit 1.07; Lot 50 152 88 0 102.9 16.8 91 90 463 07/11/05 Unit 1.07; Lot 51 155 88 0 102.6 18.0 91 90 464 07/11/05 Unit 1:07; Lot 51 151 88 0 103.2 16.1 91 90 465 07/11/05 Unit 1.07; Lot 53 154 90 0 103.3 14.2 91 90 466 07/11/05 Unit 1.07; Lot 52 156 90 0 102.8 14.5 90 90 467 07/11/05 Unit 1.07; Lot 54 157 90 0 102.9 14.8 91 90 468 07/11/05 Unit 1.07; Lot 53 159 90 0 103,0 14.4 91 90 469 07/11/05 Unit 1.07; Lot 60 ' 176 90 0 104.5 13.9 92 90 470 07/11/05 Unit 1.07; Lot 44 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 123 90 0 105.2 15.7 93 90 471 07/11/05 Unit 1.07; Lot 44 126 90 0 104.7 14.1 92 90 472 07/11/05 Unit 1.07; Lot 45 128 88 0 103.1 16.8 91 90 473 07/11/05 Unit 1.07; Lot 44 129 88 0 102.6 17.2 91 90 474 07/11/05 Unit 1.07; Lot 43 121 90 0 104.4 14.6 92 90 475 07/11/05 Unit 1.07; Lot 40 123 90 0 1 05. 1 15.3 92 90 476 07/11/05 Unit 1.07; Lot 42 125 90 0 104.4 14.3 92 90 477 07/11/05 Unit 1.07; Lot 38 128 90 0 102.7 15.0 90 90 483 07/12/05 Unit 1.07; Lot 15 176 90 0 104.9 15.6 92 90 484 07/12105 Unit 1.07; Lot 13 179 90 0 102.8 14.1 90 90 485 07/12/05 Unit 1.07;BrookiteCt11+55 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 181 90 0 103.1 14.0 91 90 486 07/12/05 Unit 1.07; Lot 15 183 90 0 105.6 14.7 93 90 487 07/12105 Unit 1.07; Lot 12 185 90 0 104.3 14.5 92 90 488 07/12/05 Unit 1.07; Lot 24 183 90 0 102.2 15.2 90 90 489 07/12105 Unit 1.07; Lot 22 185 90 0 102.7 15.0 90 90 490 07/12/05 Unit 1.07; Lot 17 181 90 0 103.7 14.9 91 90 491 07/12/05 Unit 1.07; Lot 19 186 90 0 103.9 15.9 91 90 492 07/12/05 Unit 1.07; Lot 20 188 90 0 102.8 15.4 90 90 493 07/13/05 Unit 1.07; BrookiteCt 11+00 187 19 0 102.3 16.9 92 90 494 07/13/05 Unit 1.07; Lot 17 189 19 0 101.8 17.6 91 90 495 07/13/05 Unit 1.07; Lot 18 -------------------------------------------------------------------------------------------------------------------------------------------------------------------- 190 90 0 104.6 15.8 92 90 496 07/13/05 Unit 1.07; Lot 23 188 17 0 106.6 13.5 92 90 497 07/13/05 Unit 1.07; Brookite Ci 13+45 179 17 0 105.9 18.2 91 90 498 07/13/05 Unit 1.07; Lot 10 182 17 0 107.4 15.1 92 90 499 07/13/05 Unit 1.07; Lot 13 188 90 0 102.2 15.0 90 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4" Dry Moist. Rel. Rd. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location (ft) No. (°"°) (P (%) (%) (%) 500 07/13/05 Unit 1.07; Lot 21 501 07/13/05 Unit 1.07; Lot 18 502 07/13/05 Unit 1.07; Lot 15 SZ 503 07/14/05 Unit 1.06; Lot 44; (Rec Lot) SZ 504 07/14/05 Unit 1.06; Lot 40 SZ 505 07/14/05 Unit 1.06; Lot 43 SZ 506 07/14/05 Unit 1.06; Lot 41 SZ 507 07/14/05 Unit 1.06; Lot 40 508 07/14/05 Unit 1.06; Lot 44 509 07/14/05 Unit 1.06; Lot 44; (Rec Lot) 510 07/14105 Unit 1.07; Lot 13 510A 07/14/05 Unit 1.07; Lot 13 511 07/14/05 Unit 1.07; Lot 12 512 07/14/05 Unit 1.07; Lot 15 512 A 07/14/05 Unit 1.07; Lot 15 513 07/14/05 Unit 1.07; Lot 16 514 07/14/05 Unit 1.07; Lot 27 515 07/15/05 Unit 1.06; Mica Rd 24+50 516 07/15/05 Unit 1.06; Lot 44 517 07/15/05 Unit 1.06; Lot 44 518 07/15/05 Unit 1.06; Lot 44 519 07/15/05 Unit 1.06; Lot 44 520 07/15/05 Unit 1.06; Lot 44 521 07/15/05 Unit 1.06; Lot 44 522 07/15/05 Unit 1.06; Lot 43 523 07/15/05 Unit 1.06; Lot 41 524 07/18/05 Unit 1.06; Mica Rd 22+80 525 07/18/05 Unit 1.06; Lot 44 526 07/18/05 Unit 1.06; Lot 44 SZ 527 07/18/05 Unit 1.06; Lot 43 528 07/18/05 Unit 1.06; Lot 44 • 529 07/18/05 Unit 1.06; Lot 42 530 07/18/05 Unit 1.06; Lot 40 531 07/18/05 Unit 1.06; Lot 43 SZ 532 07/18/05 Unit 1.06; Lot 39 533 ---------------------------------------------------------------------- 07/18/05 Unit 1.06; Lot 42 534 07/18/05 Unit 1.06; Lot 42 535 07/18/05 Unit 1.06; Lot 41 SZ 536 07/18/05 Unit 1.06; Lot 43 FG 537 07/18/05 Unit 1.07; Lot I FG 538 07/18/05 Unit 1.07; Lot FG 539 07/18/05 Unit 1.07; Lot 3 FO 540 07/19/05 Unit 1.07; Lot ST 541 07/19/05 Unit 1.07; Stab Fill #5 ST 542 07/19/05 Unit 1.07; Stab Fill #5 190 90 0 104.9 14.3 92 90 191 90 0 105.1 13.9 92 90 187 17 0 106.1 13.9 91 90 186 17 0 105.7 14.2 91 90 192 17 0 104.5 13.7 90 90 194 17 0 105.3 14.1 90 90 196 90 0 103.8 14.5 91 90 199 90 0 104.9 16.2 92 90 197 90 0 102.6 15.9 90 90 200 90 0 102.0 14.5 90 90 187 88 0 1 00. 7 10.8 89 90 187 88 0 101.8 16.9 90 90 189 88 0 103.5 16.1 91 90 190 88 0 99.8 11.4 88 90 190 88 0 105.9 17.1 94 90 193 88 0 ------------------------------------------------------------------------------------------------- 102.6 18.5 91 90 186 90 0 104.3 17.9 92 90 185 90 0 103.7 14.9 91 90 190 90 0 102.8 15.1 90 90 195 90 0 105.7 14.3 93 90 199 90 0 104.9 17.9 92 90 197 90 0 104.6 15.2 92 90 202 . 90 0 102.1 17.4 90 90 204 90 0 103.2 15.8 91 90 206 90 0 102.6 14.8 90 90 203 90 0 104.4 14.5 92 90 204 . 90 0 104.1 14.3 92 90 204 . 90 0 105.2 14.9 93 90 207 19 0 100.6 16.8 90 90 208 19 0 101.7 16.2 91 90 208 19 0 102.3 17.5 92 90 212 90 0 104.7 14.6 92 90 212 90 0 104.7 14.6 92 90 209 90 0 106.9 15.3 94 90 213 19 0 101.9 17.5 91 90 213 19 0 -------------------------------------------------------------------------------------------------- 101.3 16.8 91 90 215 19 0 102.1 17.4 91 90 216 19 0 102.9 16.6 92 90 212 19 0 102.2 16.9 91 90 139 82 0 110.8 13.5 92 90 143 82 0 -------------------------------------------------------------------------------------------------- 111.2 13.3 93 90 148 82 0 111.7 12.9 93 90 152 19 0 102.4 16.1 92 90 189 90 0 103.7 14.7 91 90 186 90 0 102.8 14.9 90 90 Project No, 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4" Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location No. (%) (pcf) (%) (%) (%) ST 543 07/19/05 Unit 1.07; Stab Fill #5 ST 544 07/19/05 Unit 1.07; Stab Fill #5 ST 545 07/19/05 Unit 1.07; Lot 38 ST 546 07/19/05 Unit 1.07; Lot 40 ST 547 07/19/05 Unit 1.07; Lot 43 ST 548 07/19/05 Unit 1.07; Lot 44 ST 549 07/19/05 Unit 1.07; Lot 45 ST 550 07/19/05 Unit 1.07; Lot 48 SZ 551 07/19/05 Unit 1.06; Lot 94 552 07/19/05 Unit 1.06; Lot 43 553 07/19/05 Unit 1.06; Lot 43 554 07/19/05 Unit 1.06; Lot 42 555 07/19/05 Unit 1.06; Lot 42 556 07/19/05 Unit 1.06; Lot 40 551 07/19/05 Unit 1.06; Lot 43 558 07/19/05 Unit 1.06; Lot 41 559 07/19/05 Unit 1.06; Lot 40 560 01/20/05 Unit 1.06; Lot 92 561 07/20/05 Unit 1.06; Lot 91 562 07/20/05 Unit 1.06; Lot 90 563 07/20/05 Unit 1.06; Lot 73 564 07/20/05 Unit 1.06; Lot 90 FG 565 07/20/05 Unit 1.07; Lot 61 FO 566 07/20/05 Unit 1.07; Lot 60 FO 567 07/20/05 Unit 1.07; Lot 59 FG 568 07/20/05 Unit 1.07; Lot 58 FG 569 07/20/05 Unit 1.07; Lot 57 FG 570 07/20/05 Unit 1.07; Lot 56 FG 571 07/20/05 Unit 1.07; Lot 55 FG 572 07/20/05 Unit 1.07; Lot 54 FG 573 07/20/05 Unit 1.07; Lot 62 574 07/21/05 Unit 1.06; Lot 92 575 07/21/05 Unit 1.06; Lot 89 576 07/21/05 Unit 1.06; Halite P1 27+30 577 07/21/05 Unit 1.06; Lot 92 578 07/21/05 Unit 1.06; Lot 90 579 07/21/05 Unit 1.06; Halite P1 25+50 580 07/21/05 Unit 1.06; Lot 34 581 07/21/05 Unit 1.06; Lot 34 582 07/22/05 Unit 1.06; Lot 91 583 07/22/05 Unit 1.06; Lot 89 584 07/22/05 Unit 1.06; Lot 90 585 07/22/05 Unit 1.06; Lot 89 586 07/22/05 Unit 1.06; Lot 90 587 07/22/05 Unit 1.06; Lot 90 200 90 0 103.3 15.5 91 90 195 90 0 104.1 14.3 92 90 127 90 0 102.8 14.2 90 90 120 90 0 103.1 14.1 91 90 117 90 0 103.6 14.5 91 90 120 90 0 ---------------------------------------------------------------------------------------- 103.0 14.1 91 90 126 90 0 101.8 14.5 90 90 124 90 0 102.6 14.7 90 90 211 90 0 102.2 14.4 90 90 215 90 0 103.1 15.7 9190 218 90 0 ---------------------------------------------------------------------------------------- 101.9 14.8 90 90 220 90 0 102.7 15.5 90 90 224 90 0 103.0 14.9 91 90 223 90 0 102.8 14.4 90 90 226 90 0 104.6 15.2 92 90 -- 228 90 0 102.8 17.1 90 90 229 90 0 103.3 18.3 91 90 208 74 0 111.2 12.5 90 90 210 17 0 107.4 14.6 92 90 212 17 0 105.2 15.7 90 90 209 17 0 1 05. 8 15.9 91 90 207 17 0 105.0 17.9 90 90 180 90 0 102.5 14.8 90 90 178 90 0 107.6 15.3 95 90 176 90 0 103.0 14.9 91 90 174 90 0 ----------------------------------------------------------------------------------------- 102.8 15.4 90 90 172 90 0 102.2 15.1 90 90 169 90 0 104.9 14.2 92 90 167 90 0 105.7 14.5 93 90 165 90 0 104.4 14.3 92 90 182 90 0 105.2 15.1 93 90 211 90 0 104.3 16.5 92 90 213 90 0 104.9 15.9 92 90 210 17 0 106.3 15.0 91 90 214 17 0 107.8 14.9 93 90 215 90 0 ----------------------------------------------------------------------------------------- 103.7 16.1 91 90 213 90 0 104.6 17.4 92 90 194 90 0 102.7 14.5 90 90 198 90 0 103.1 14.9 91 90 218 17 0 106.4 15.7 91 90 216 17 0 107.6 13.9 92 90 219 17 0 106.2 13.1 91 90 220 90 0 103.3 14.5 91 90 222 90 0 102.8 14.1 90 90 224 90 0 104.0 15.8 91 90 Project No. 06403-52-19B December 29, 2005 TABLE SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4 Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location t) No. (%) (pcO (%) (%) (%) 588 07/22/05 Unit 1.07; Lot 32 135 90 0 103.4 17.9 91 90 589 07/22/05 Unit 1.07; Lot 31 139 90 0 102.8 17.2 90 90 590 07/22/05 Unit 1.07; Lot 30 143 90 0 102.5 18.3 90 90 591 07/25/05 Unit 1.06; Lot 75 188 19 0 100.7 18.9 90 90 592 07/25/05 Unit 1.06; Halite P128+90 191 19 0 101.4 20.1 91 90 593 07/25/05 Unit 1.06; Halite P127+90 197 17 0 106.6 17.4 92 90 594 07/25/05 Unit 1.06; Lot 74 194 17 0 108.4 17.8 93 90 595 07/25/05 Unit 1.06; SD Easement 202 17 0 106.9 14.7 92 90 596 07/25/05 Unit 1.06; Lot 89 217 17 0 106.2 20.1 91 90 597 07/25/05 Unit 1.06; Halite P1 28+50 203 17 0 106.6 15.3 92 90 598 07/26/05 Unit 1.06; Lot 75 196 19 0 101.3 19.1 91 90 599 07/26/05 Unit 1.06; Lot 77 200 19 0 102.8 17.6 92 90 600 07/26/05 Unit 1.06; Lot 76 204 19 0 100.9 16.3 90 90 601 07/26/05 Unit 1.06; Lot 76 206 19 0 100.4 19.2 90 90 602 07/26/05 Unit 1.06; Halite P1 27+60 209 19 0 101.618.5 91 90 603 07/26/05 Unit 1.06; Lot 1 187 90 0 103.8 15.2 91 90 604 07/26/05 Unit 1.06; Halite P123+50 195 90 0 101.1 9.4 89 90 604A 07/26/05 Unit 1.06; Halite P123+50 195 90 0 103.3 14.2 91 90 605 07/26/05 Unit 1.06; Lot 69 190 90 0 104.1 14.5 92 90 606 07/26/05 Unit 1.06; Halite P124+15 197 90 0 102.4 15.1 90 90 607 07/27/05 Unit 1.06; Lot 69 193 90 0 104.6 15.9 92 90 608 07/27/05 Unit 1.06; Lot 69 198 90 0 103.1 14.6 91 90 609 07/27/05 Unit 1.06; Lot 69 200 90 0 102.7 14.4 90 90 610 07/27/05 Unit 1.06; Lot 70 202 90 0 102.4 15.1 90 90 611 07/27/05 Unit 1.06; Lot 68 201 90 0 104.1 14.5 92 90 612 07/27/05 Unit 1.06; Lot 70 204 90 0 103.3 16.0 91 90 613 07/27/05 Unit 1.06; Lot 69 206 17 0 106.6 15.4 92 90 614 07/27/05 Unit 1.06; Lot 69 208 17 0 108.5 14.9 93 90 615 07/27/05 Unit 1.06; Lot 70 209 17 0 107.2 14.6 92 90 616 07/27/05 'Unit 1.06; Lot 77 208 17 0 105.9 13.8 91 90 FO 617 07/27/05 Unit 1.07; Lot 63 182 88 0 103.7 16.4 92 90 FG 618 07/27/05 Unit 1.07; Lot 64 181 88 0 104.5 16.1 92 90 FG 619 07/27/05 Unit 1.07; Lot 65 181 88 0 104.4 15.6 92 90 FO 620 07/27/05 Unit 1.07; Lot 66 180 88 0 105.2 16.1 93 90 FG 621 07/28/05 Unit 1.07; Lot 67 180 88 0 103.8 17.3 92 90 FG 622 07/28/05 Unit 1.07; Lot 68 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 179 88 0 103.7 15.9 92 90 FG 623 07/28/05 Unit 1.07; Lot 69 179 88 0 102.9 15.8 91 90 FG 624 07/28/05 Unit 1.07; Lot 70 178 88 0 104.8 16.2 93 90 FG 625 07/28/05 Unit 1.07; Lot 71 177 88 0 103.3 17.6 91 90 626 07/28/05 Unit 1.06; Lot 76 211 90 0 105.1 14.9 92 90 627 07/28/05 Unit 1.06; Lot 75 212 90 0 104.5 15.3 92 90 628 07/28/05 Unit 1.06; Halite P1 28+90 213 90 0 103.0 16.5 91 90 629 07/28/05 Unit 1.06; Lot 77 214 90 0 103.8 15.1 91 90 630 07/28/05 Unit 1.06; Halite P129+55 215 90 0 102.5 18.4 90 90 631 07/28/05 Unit 1.06; Lot 88 216 90 0 104.8 15.7 92 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Test No Date Location Elev. or Depth t) Plus 3/4 Curve Rock No (%) Field Dry Dens. (pcf) Field Moist. Cont. (%) Field Rel. Comp. (%) Req'd. Rel. Comp. (%) 632 07/29/05 Unit 1.06; Lot 76 216 19 0 100.9 19.8 90 90 633 07/29/05 Unit 1.06; Lot 87 217 19 0 101.5 18.3 91 90 634 07/29/05 Unit 1.06; Lot 74 215 19 0 102.0 19.6 91 90 635 07/29/05 Unit 1.06; Lot 74 219 19 0 103.2 20.4 92 90 636 07/29/05 Unit 1.06; Lot 75 219 19 0 101.7 17.3 91 90 637 07/29/05 Unit 1.06; Lot 76 220 19 0 102.2 16.8 91 90 638 07/29/05 Unit 1.06; Lot 88 222 19 0 101.9 16.5 91 90 FG 639 07/29/05 Unit 1.07; Lot 9 173 90 0 104.4 14.6 92 90 FG 640 07/29/05 Unit 1.07; Lot 8 1168 90 0 105.7 15.2 93 90 FG 641 07/29/05 Unit 1.07; Lot 7 164 90 0 106.3 14.4 93 90 FG 642 07/29/05 Unit 1.07; Lot 6 160 90 0 105.1 14.2 92 90 FG 643 07/29/05 Unit 1.07; Lot 156 90 0 104.7 15.5 92 90 644 08/01/05 Unit 1.06; Lot 71 212 90 0 103.1 18.4 91 90 SZ 645 08/01/05 Unit 1.06; Stab Fill #3 214 90 0 102.6 18.9 90 90 SZ 646 08/01/05 Unit 1:06; Stab Fill #3 218 90 0 103.0 16.2 91 90 08/01/05 Unit 1.06; Lot 73 214 19 0 101.2 19.3 91 90 ) 648 08/01/05 Unit 1.06; Lot 89 225 19 0 101.7 18.4 91 90 649 08/01/05 Unit 1.06; SD Easement 220 19 0 101.9 20.1 91 90 650 08/01/05 Unit 1.06; Lot 75 224 19 0 102.8 16.3 92 90 ) 651 08/01/05 Unit 1.06; Lot 88 223 90 0 103.4 17.6 91 90 652 08/01/05 Unit 1.06; Lot 78 226 90 0 102.6 17.1 90 90 653 08/01/05 Unit 1.06; Lot 76 228 90 0 104.5 16.6 92 90 654 08/02/05 Unit 1.06; Lot 72 216 90 0 103.5 15.8 91 90 ) 655 08/02/05 Unit 1.06; Lot 73 219 90 0 102.5 17.6 90 90 SZ 656 08/02/05 Unit 1.06; Stab Fill 220 - 90 0 103.3 16.8 91 90 SZ 657 08/02/05 Unit 1.06; Stab Fill #3 225 90 0 104.1 16.3 92 90 658 08/02/05 Unit 1.06; Lot 75 229 90 0 105.4 15.0 93 90 659 08/02/05 Unit 1.06; Lot 74 225 90 0 104.6 15.5 92 90 660 08/02/05 Unit 1.06; Lot 89 228 90 0 103.9 17.4 91 90 661 08/02/05 Unit 1.06; Lot 75 232 90 0 105.1 14.6 92 90 662 08/02/05 Unit 1.06; Lot 77 231170 107.4 13.9 92 90 663 08/02/05 Unit 1.06; Lot 76 235 17 0 105.8 15.3 91 90 664 08/02/05 Unit 1.06; Lot 78 238 17 0 106.7 14.9 92 90 665 08/03/05 Unit 1.06; Lot 76 241 17 0 107.1 16.5 92 90 666 08/03/05 Unit 1.06; Lot 76 243 17 0 105.5 17.2 91 90 667 08/03/05 Unit 1.06; Lot 77 245 17 0 108.0 14.9 93 90 668 08/03/05 Unit 1.06; Lot 89 231 19 0 102.0 17.4 91 90 669 08/03/05 Unit 11.06; Lot 88 232 19 0 101.6 18.2 91 90 670 08/03/05 Unit 1.06; Lot 87 236 19 0 102.7 19.1 92 90 SZ 671 08/03/05 Unit 1.06; Stab Fill #3 228 90 0 103.6 15.7 91 90 SZ 672 08/03/05 Unit 1.06; Stab Fill #3 232 90 0 104.3 16.5 92 90 SZ 673 08/03/05 Unit 1.06; Stab Fill #3 235 90 0 104.1 15.9 92 90 SZ 674 08/04/05 Unit l.06; Lot 34 205 90 0 102.9 15.1 91 90 SZ 675 08/04/05 Unit 1.06; Lot 34 213 90 0 103.8 16.3 91 90 SZ 676 08/04/05 Unit 1.06; Lot 36 209 19 0 101.7 17.0 91 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4' Dry Moist. Rd. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location (1') No. (%) (pcf) (%) (%) (%) SZ 677 08/04/05 Unit 1.06; Lot 34 211 19 0 101.9 16.3 91 90 SZ 678 08/04105 Unit 1.06; Lot 35 216 19 0 102.0 16.7 91 90 SZ 679 08/05/05 Unit 1.06; Buttress Fill #2 268 90 0 103.0 15.8 91 90 SZ 680 08/05/05 Unit 1.06; Buttress Fill #2 271 90 0 102.2 16.1 90 90 SZ 681 08/05/05 Unit 1.06; Buttress Fill #2 278 90 0 103.3 16.9 91 90 SZ 682 08/05/05 Unit 1.06; Buttress Fill #2 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 275 90 0 104.9 14.8 92 90 SZ 683 08/05/05 Unit 1.06; Buttress Fill #2 283 19 0 100.7 19.3 90 90 SZ 684 08/05/05 Unit 1.06; Buttress Fill #2 280 19 0 101.4 18.6 91 90 SZ 685 08/05/05 Unit 1.06; Buttress Fill #2 285 19 0 100.5 19.2 90 90 SZ 686 08/05/05 Unit 1.06; Buttress Fill #2 291 90 0 104.1 15.6 92 90 SZ 687 08/05/05 Unit 1.06; Buttress Fill #2 293 90 0 103.8 16.7 91 90 SZ 688 08/08/05 Unit 1.06; Buttress Fill #2 295 19 0 101.6 16.4 91 90 SZ 689 08/08/05 Unit 1.06; Buttress Fill #2 298 19 0 101.5 17.9 91 90 SZ 690 08/08/05 Unit 1.06; Buttress Fill #2 303 90 0 104.0 16.1 91 90 SZ 69108/08/05 Unit 1.06; Buttress Fill #2 308 90 - 0 105.9 17.0 9390 692 08/08/05 Unit 1.06; Lot 76 242 90 0 102.8 15.2 90 90 693 08/08/05 Unit 1.06; Lot 78 247 90 0 103.3 16.4 91 90 694 08/08/05 Unit 1.06; Lot 88 235 19 0 101.3 17.5 91 90 695 08/08/05 Unit 1.06; Lot 87 238 19 0 100.8 19.3 90 90 696 08/08/05 Unit 1.06; Lot 86 239 19 0 102.6 17.9 92 90 697 08/08/05 Unit 1.06; Lot 87 242 19 0 100.9 18.4 90 90 698 08/09/05 Unit 1.06; Lot 88 237 19 0 101.3 17.5 91 90 699 08/09/05 Unit 1.06; Lot 74 228 19 0 100.8 18.4 90 90 ST 700 08/09/05 Unit 1.06; Lot 75 237 19 0 100.9 16.3 90 90 ST 701 08/09/05 Unit 1.06; Stab Fill #3 224 90 0 102.8 19.1 90 90 ST 702 08/09/05 Unit 1.06; Stab Fill #3 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 233 90 0 103.7 16.8 91 90 ST 703 08/09/05 Unit 1.06; Stab Fill #3 232 90 0 104.9 17.2 92 90 SZ 704 08/09/05 Unit 1.06; Lot 3 184 90 0 102.6 15.8 90 90 SZ 705 08/09/05 Unit 1.06; Lot 3 180 90 0 103.1 14.9 91 90 SZ 706 08/10/05 Unit 1.06; Lot 186 90 0 102.8 14.3 90 90 SZ 707 08/10/05 Unit 1.06; Lot 2 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 190 90 0 104.6 15.1 92 90 708 08/10/05 Unit 1.06; Lot 3 193 90 0 103.3 14.7 91 90 709 08/10/05 Unit 1.06; Lot 196 90 0 102.1 16.4 90 90 710 08/10/05 Unit 1.06; Lot 79 242 90 0 106.1 14.6 93 90 711 08/10/05 Unit 1.06; Lot 79 246 90 0 107.4 14.8 94 90 712 08/10/05 Unit 1.06; Lot 78 250 90 0 102.6 17.1 90 90 713 08/10/05 Unit 1.06; Lot 79 255 90 0 103.4 15.3 91 90 714 08/10/05 Unit 1.06; Lot 76 245 90 0 102.5 15.7 90 90 715 08/11/05 Unit 1.06; Lot 77 251 90 0 104.3 16.7 92 90 716 08/11/05 Unit 1.06; Lot 78 257 90 0 105.4 17.4 93 90 717 08/11/05 Unit 1.06; Lot 79 260 90 0 104.9 17.0 92 90 718 08/11/05 Unit 1.06; Lot 86 249 90 0 105.1 17.6 92 90 719 08/11/05 Unit 1.06; Lot 85 255 17 0 107.2 15.1 92 90 720 08/11/05 Unit 1.06; Lot 87 245 90 0 103.7 17.2 91 90 721 08/11/05 Unit 1.06; Lot 85 258 90 0 102.0 14.5 90 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4" Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. .Comp. Comp. Test No. Date Location ( No. (%) (pcf) (%) (%) (%) 722 08/11/05 Unit 1.06; Lot 86 243 90 0 104.9 15.3 92 90 723 08/11/05 Unit 1.06; Halite P129+90 240 90 0 106.2 16.7 93 90 FG 724 08/11/05 Unit 1.07; Lot 50 153 17 0 107.4 13.6 92 90 FG 725 08/11/05 Unit 1.07; Lot 51 159 17 0 106.6 13.9 92 90 FG 726 08/11/05 Unit 1.07; LOt 52 161 17 0 108.5 14.1 93 90 FO 727 08/11/05 Unit 1.07; Lot 53 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 163 17 0 105.2 14.7 90 90 FG 728 08/11/05 Unit 1.07; Lot 27 188 90 0 102.8 15.6 90 90 FG 729 08/11/05 Unit 1.07; Lot 26 189 90 0 104.5 14.9 92 90 FG 730 08/11/05 Unit 1.07; Lot 25 189 90 0 106.1 14.5 93 90 FG731 08/11/05 Unit 1.07; Lot 24 -190 17 --107.314.49290 FO 732 08/11/05 Unit 1.07; Lot 23 190 17 0 107.8 15.2 93 90 FG 733 08/11/05 Unit 1.07; Lot 22 191 17 0 106.7 14.9 92 90 FG 734 08/11/05 Unit 1.07; Lot 21 191 90 0 104.4 14.3 92 90 FG 735 08/11/05 Unit 1.07; Lot 20 192 90 0 106.2 14.7 93 90 FG 736 08/11/05 Unit 1.07; Lot 19 193 90 0 103.3 14.5 91 90 FG 737 08/11/05 Unit 1.07; Lot 18 194 17 0 1 06. 5 13.8 91 90 FG 738 08/11/05 Unit 1.07; Lot 17 194 17 0 108.3 15.1 93 90 SZ 739 08/12/05 Unit 1.06; Lot 5 190 90 0 104.4 15.2 92 90 740 08/12/05 Unit 1.06; Lot 1 202 90 0 103.9 16.7 91 90 SZ 741 08/12/05 Unit 1.06; Lot 204 90 0 101.2 12.5 89 90 SZ 741 A 08/12/05 Unit 1.06; Lot ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 204 19 0 102.1 16.3 91 90 SZ 742 08/12/05 Unit 1.06; Lot 1 198 19 0 101.5 17.8 91 90 743 08/12/05 Unit 1.06; Lot 198 19 0 100.8 16.4 90 90 SZ 744 08/12/05 Unit 1.06; Lot 3 201 19 0 100.3 15.7 90 90 7--08/12/05 Unit 1.06; Lot 207 190101.6 15.8 91 90 SZ 746 08/15/05 Unit 1.0-,6-;"Lo t 5 195 88 ---------------------------------------------------------------------------------------------------------------- 0 102.9 16.9 91 90 SZ 747 08/15/05 Unit 1.06; Lot 6 198 88 0 104.1 16.6 92 90 SZ 748 08/15/05 Unit 1.06; Lot 5 200 88 0 104.7 17.4 92 90 SZ 749 08/15/05 Unit 1.06; Lot 6/7 205 88 0 105.1 15.5 93 90 750 08/15/05 Unit 1.06; Lot 1 205 88 0 102.5 17.0 91 90 75--08/15/05 Unit 1.06; Lot --20-----103.716:8 --90 752 08/15/05 Unit 1.06; Lot 3 210 88 0 104.4 16.2 92 90 753 08/15/05 Unit 1.06; Lot 211 88 0 106.2 17.1 94 90 754 08/15/05 Unit 1.06; Lot 4 213 90 0 102.3 14.8 90 90 755 08/15/05 Unit 1.06; Stab Fill #IA 235 88 0 104.1 16.5 92 90 756 08/15/05 Unit 1.06; Stab Fill #1A 240 88 0 103.6 16.2 92 90 757 08/15/05 Unit 1.06; Stab Fill #1A 245 88 0 102.7 16.0 91 90 SZ 758 08/16/05 Unit 1.06; Lot 6 208 88 0 104.9 17.4 93 90 759 08/16/05 Unit 1.06; Lot 210 88 0 105.6 16.1 93 90 SZ 760 08/16/05 Unit 1.06; Lot 214 88 0 103.6 16.8 92 90 761 08/16/05 Unit 1.06; Stab Fill CA 243 88 0 102.1 15.9 90 90 SZ 762 08/16/05 Unit 1.06; Buttress Fill #1 270 88 0 104.5 17.8 92 90 SZ 763 08/16/05 Unit 1.06; Buttress Fill #1 273 88 0 102.9 17.2 91 90 SZ 764 08/16/05 Unit 1.06; Stab Fill #1A 248 88 0 105,1 16.4 93 90 SZ 765 08/16/05 Unit 1.06; Stab Fill #1A 283 88 0 102.7 17.6 91 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4" Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location NO. (%) (pcf) (%) SZ 766 08/16/05 Unit 1.06; Buttress Fill #1 SZ 767 08/16105 Unit 1.06; Buttress Fill #1 SZ 768 08/17/05 Unit 1.06; Buttress Fill #1 SZ 769 08/17/05 Unit 1.06; Stab Fill #1A SZ 770 08/17/05 Unit 1.06; Stab Fill #1A SZ 771 08/17/05 Unit 1.06; Lot 34 SZ 772 08/17/05 Unit 1.06; Lot 37 SZ 773 08/17/05 Unit 1.06; Lot 36 774 08/17/05 Unit 1.06; Lot 35 SZ 775 08/17/05 Unit 1.06; Lot 34 SZ 776 ----------------------------------------------------------------------------- 08/17/05 Unit 1.06; Buttress Fill #1 SZ 777 08/17/05 Unit 1.06; Buttress Fill #1 SZ 778 08/18/05 Unit 1.06; Buttress Fill #1 SZ 779 08/18/05 Unit 1.06; Lot 35 780 08/18/05 Unit 1.06; Lot 37/38 781 08/18/05 Unit 1.06; Lot 37 782 08/18/05 Unit 1.06; Lot 35/36 783 08/18/05 Unit 1.06; Lot 36 784 08/18/05 Unit 1.06; Lot 37/38 785 08/18/05 Unit 1.06; Lot 34 786 ---------------------------------------------------------------------------- 08/18/05 Unit 1.06; Lot 39 787 08/19/05 Unit 1.06; Lot 3 788 08/19/05 Unit 1.06; Lot 4 789 08/19/05 Unit 1.06; Lot 4 790 08/19/05 Unit 1.06; Lot 791 08/19/05 Unit 1.06; Lot 6 SZ 792 08/19/05 Unit 1.06; Lot 67 793 08/22/05 Unit 1.06; Lot 7 794 08/22/05 Unit 1.06; Lot 9 795 08/22/05 Unit 1.06; Lot 7 796 08/22/05 Unit 1.06; Lot 797 08/22105 Unit 1.06; Lot 11 798 08/22/05 Unit 1.06; Lot 11 799 08/22/05 Unit 1.06; Lot 13 800 08/22/05 Unit 1.06; Lot 5 801 08/22/05 Unit 1.06; Lot 6 ST 802 08/22/05 Unit 1.06; Lot 40 ST 803 08/22/05 Unit 1.06; Lot 41 ST 804 08/22/05 Unit 1.06; Lot 43 ST 805 08/22/05 Unit 1.06; Lot 43 ST 806 08/22/05 Unit 1.06; Lot 44; (Rec Lot) SZ 807 08/23/05 Unit 1.06; Lot 21 SZ 808 08/23/05 Unit 1.06; Lot 19 SZ 809 08/23/05 Unit 1.06; Lot 18 SZ 810 08/23/05 Unit 1.06; Lot 17 267 88 0 103.1 16.5 91 90 276 88 0 105.5 16.1 93 90 280 88 0 104.2 16.4 92 90 258 88 0 103.9 17.2 92 90 261 88 0 105.1 15.4 93 90 216 88 0 103.7 15.5 92 90 214 88 0 104.8 17.2 93 90 218 88 0 106.1 15.7 94 90 220 88 0 105.2 14.9 93 90 222 88 0 104.4 ----------------------------------------------------------------------------------------- 16.7 92 90 284 88 0 103.8 16.9 92 90 288 88 0 102.1 16.3 90 90 290 88 0 104.3 15.8 92 90 224 19 0 101.9 16.9 91 90 221 19 0 103.1 15.8 92 90 225 88 0 102.7 16.3 91 90 227 88 0 102.3 16.1 90 90 231 19 0 100.3 15.7 90 90 231 88 0 103.4. 16.7 91 90 234 88 0 105.0 17.0 93 90 231 88 0 ------------------------------------------------------------------------------------------ 103.7 16.2 92 90 212 88 0 102,9 16.7 91 90 218 88 0 104.7 14.7 92 90 223 88 0 103.7 14.8 92 90 215 88 0 104.3 16.8 92 90 220 88 0 ------------------------------------------------------------------------------------------ 102.0 17.6 90 90 220 88 0 105.5 15.5 93 90 233 88 0 102.8 16.3 91 90 235 88 0 103.0 15.6 91 90 236 88 0 102.3 16.7 90 90 239 88 0 ------------------------------------------------------------------------------------------- 104.1 16.5 92 90 238 88 0 102.4 16.1 90 90 241 88 0 104.4 17.2 92 90 242 88 0 104.9 15.6 93 90 228 88 0 102.5 17.9 91 90 232 88 0 103.3 16.7 91 90 217 88 0 102.1 16.4 90 90 203 88 0 103.6 15.3 92 90 213 88 0 102.8 16.1 91 90 220 88 0 102.5 15.8 91 90 200 88 0 103.0 15.7 91 90 244 88 0 104.7 16.5 92 90 244 88 0 105.6 16.1 93 90 235 88 0 103.6 17.2 92 90 239 88 0 105.4 15.8 93 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4' Dry Moist. Rd. Rel. Depth cw Rock Dens. Cont. Comp. Comp. Test No. Date Location (ft) No. (%) (pcI) (%) (%) (%) SZ 811 08/23/05 Unit 1.06; Lot 19 240 88 0 102.8 15.5 91 90 812 08/23/05 Unit 1.06; Lot 16 242 88 0 104.5 16.7 92 90 813 08/23/05 Unit 1.06; Lot 18 244 88 0 102.2 16.5 90 90 814 08/23/05 Unit 1.06; Lot 81 268 88 0 93.8 16.8 83 90 814A 08/24/05 Unit 1.06; Lot 81 268 88 0 102.1 16.2 90 90 815 08/23/05 Unit 1.06; Lot 82 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 269 88 0 104.1 17.3 92 90 816 08/23/05 Unit 1.06; Lot 80 264 88 0 105.8 16.1 93 90 817 08/24/05 Unit 1.06; Lot 81 269 88 0 102.8 18.5 91 90 818 08/24/05 Unit 1.06; Lot 80 266 88 0 104.1 16.8 92 90 819 08/24/05 Unit 1.06; Lot 79 26-88 0 103.3175 91 90 820 08/24/05 Unit 1.06; Lot 84 264 88 0 102.6 18.3 91 90 821 08/24/05 Unit 1.06; Lot 5 231 88 0 102.4 16.6 90 90 822 08/24/05 Unit 1.06; Lot 6 235 88 0 105.1 17.1 93 90 FG 823 08/25/05 Unit 1.06; Lot 35 234 90 0 102.2 16.8 90 90 ST 824 08/25/05 Unit 1.06; Lot 34 218 90 0 102.8 15.1 90 90 ST 825 08125/05 Unit 1.06; Lot 35 228 90 0 101.9 15.4 90 90 ST 826 08/25/05 Unit 1.06; Lot 37 227 90 0 102.3 14.5 90 90 827 08/26/05 Unit 1.06; Lot 23 247 90 0 104.2 19.3 92 90 828 08/26/05 Unit 1.06; Lot 22 245 90 0 101.8 20.5 90 90 829 08/26/05 Unit 1.06; Lot 21 246 90 0 103.1 17.8 91 90 SZ 830 08/26/05 Unit 1.06; Stab Fill #2 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 227 90 0 106.8 18.9 94 90 SZ 831 08/26105 Unit 1.06; Stab Fill #2 230 90 0 103.5 16.7 91 90 SZ 832 08/26/05 Unit 1.06; Stab Fill #2 234 90 0 104.9 17.1 92 90 SZ 833 08/26/05 Unit 1.06; Stab Fill #2 237 90 0 105.5 17.3 93 90 834 08/29/05 Unit 1.07; Lot 42 132 17 0 108.9 14.5 93 90 835 08/29/05 Unit 1.07; Lot 39 134 17 0 106.7 13.9 92 90 836 08/29/05 Unit 1.07; Lot 37 131 17 0 107.4 15.2 92 90 837 08/29/05 Unit 1.07; Lot 33 130 90 0 103.5 15.6 91 138 90 90 838 00/29/05 unit 1.07, Lut 31 141 90 0 99.8 9.2 FG 69 90 -- 039 840 00/29/05 Unit 1.07, bat Be 08/31/05 Unit 1.06; Lot 36 144 234 -- 90 88 0 0 101.1 103.3 10.0 16.4 91 90 FO 841 08/31/05 Unit 1.06; Lot 37 233 19 0 101.8 15.1 91 90 FG 842 08/31/05 Unit 1.06; Lot 38 233 19 0 100.9 15.6 90 90 FG 843 08/31/05 Unit 1.06; Lot 39 232 88 0 104.8 16.0 93 90 FG Unit --.06; Lot 40 .! ------08/31/05 - 231 88 0 103.2 16.6 91 - 90 - ST 845 08/31/05 Unit 1.06; Buttress Fill #2 283 90 0 102.8 16.5 90 90 ST 846 08/31/05 Unit 1.06; Buttress Fill #2 300 90 0 103.7 15.1 91 90 ST 847 08/31/05 Unit 1.06; Buttress Fill #2 285 19 0 101.4 16.7 91 90 ST 848 08/31/05 Unit 1.06; Buttress Fill *2 292 19 0 100.9 17.3 90 90 FG 84-09/01/05 Unit 1.07; Lot" 131 90 0 103.4 15.4 91 90 FG 850 09/01/05 Unit 1.07; Lot 45 130 90 0 103.8 16.2 91 90 FG 851 09/01/05 Unit 1.07; Lot 46 130 90 0 105.9 15.7 93 90 FG 852 09/01/05 Unit 1.07; Lot 47 129 88 0 105.3 17.7 93 90 FO 853 09/01/05 Unit 1.07; Lot 48 128 88 0 105.0 16.4 93 90 FG 854 09/01/05 Unit 1.07; Lot 49 127 88 0 105.2 20.0 93 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 314 Dry Moist. Rel. Rel. Depth Curve Rock Dens. Cont. Comp. Comp. Test No. Date Location t) No. (%) (pcf) (%) (%) (%) FG 855 09/01/05 Unit 1.07; Lot 42 134 90 0 102.5 16.7 90 90 FG 856 09101/05 Unit 1.07; Lot 41 135 90 0 103.8 14.5 91 90 ST 857 09/01/05 Unit 1.07; Lot 17 183 19 0 101.6 16.2 91 90 ST 858 09/01/05 Unit 1.07; Lot 17 175 19 0 102.0 15.9 91 90 ST 859 09/01/05 Unit 1.07; Lot 19 170 19 0 101.8 16.3 91 90 ST 860 09/01/05 Unit 1.07; Lot 21 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 184 90 0 103.5 15.1 91 90 ST 861 09/01/05 Unit 1.07; Lot 24 176 90 0 102.8 14.4 90 90 SZ 862 09/01/05 Unit 1.07; Stab Fill #2 138 90 0 104.0 15.5 91 90 SZ 863 09/01/05 Unit 1.07; Stab Fill #2 140 90 0 101.9 16.3 90 90 SZ 864 09/02105 Unit 1.07; Stab Fill #2 - - 141 17 0 108.6 14.1 93 90 SZ 865 09/02105 Unit 1.07; Stab Fill #2 145 17 0 107.3 13.9 92 90 SZ 866 09/02/05 Unit 1.07; Stab Fill #2 150 17 0 108.2 14.5 93 90 FG 867 09/06/05 Unit 1.07; Lot 40 136 17 0 107.4 14.2 92 90 FG 868 09/06/05 Unit 1.07; Lot 39 136 17 0 106.3 13.8 91 90 FG ...! 09/06/05 Unit 1.07; Lot 38 137 17 0 109.1 13.6 94 90 FG 870 09/06/05 Unit 1.07; Lot 43 132 17 0 108.5 14.3 93 90 FG 871 09/06/05 Unit 1.07; Lot 37 132 90 '0 103.3 15.2 91 90 FG 872 09/06/05 Unit 1.07; Lot 36 132 90 0 102.6 14.5 90 90 FG 873 09/06/05 Unit 1.07; Lot 35 131 90 0 105.1 16.2 92 90 FG 874 09/06/05 Unit 1.07; Lot 34 131 90 0 104.9 17.3 92 90 FG 875 09/06/05 Unit 1.07; Lot 33 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 130 90 0 103.5 15.9 91 90 FG 876 09/06/05 Unit 1.07; Lot 32 138 90 0 106.2 16.8 93 90 FG 877 09/06/05 Unit 1.07; Lot 31 142 90 0 102.7 15.1 90 90 FG 878 09/06/05 Unit 1.07; Lot 30 146 90 0 104.8 14.4 92 90 FG 879 09/06/05 Unit 1.07; Lot 29 150 90 0 103.9 14.5 91 90 FG 880 09/06/05 Unit 1.07; Lot 28 154 90 0 105.1 14.3 92 90 SZ 881 09/07/05 Unit 1.06; Stab Fill #2 253 90 0 102.7 16.1 90 90 SZ 882 09/07/05 Unit 1.06; Stab Fill #2 256 90 0 104.9 15.8 92 90 SZ 883 09/07/05 Unit 1.06; Stab Fill #2 246 90 0 105.5 14.5 93 90 SZ 884 09/08/05 Unit 1.06; Stab Fill #2 260 88 0 105.5 17.4 93 90 885 09/08/05 Unit 1.06; Lot 82 -------------------------------------------------------------------------------------------------------------------------------------------------------------- 265 88 0 106.4 17.5 94 90 SZ 886 09/08/05 Unit 1.06; Stab Fill #2 250 88 0 103.3 16.2 91 90 SZ 887 09/08/05 Unit 1.06; Stab Fill #2 258 88 0 104.8 16.7 93 90 FG 888 09/08/05 Unit 1.06; Lot 81 270 90 0 106.3 15.1 93 90 FO 889 09/08/05 Unit 1.06; Lot 80 269 90 0 103.4 19.5 91 90 FG 890 09/08/05 Unit 1.06; Lot 79 266 19 0 101.9 1.6.5 91 90 SZ 891 09/09/05 Unit 1.06; Stab Fill #2 263 90 0 102.3 15.7 90 90 SZ 892 09/09/05 Unit 1.06; Stab Fill #2 255 90 0 103.1 14.9 91 90 893 09/09/05 Unit 1.06; Lot 43 225 88 0 105.2 16.4 93 90 894 09/09/05 Unit 1.06; Lot 42 227 90 0 106.9 17.6 94 90 895 09/09/05 Unit 1.07; Lot 14 189 90 0 105.7 17.3 93 90 896 09/12/05 Unit 1.06; Lot 83 260 19 0 102.8 16.1 92 90 897 09/12/05 Unit 1.06; Lot 82 268 19 0 101.1 17.3 90 90 898 09/12/05 Unit 1.06; Lot 83 267 19 0 101.5 16.8 91 90 FG 899 09/12/05 Unit 1.07; Lot 10 188 88 0 106.2 15.9 94 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Req'd. or 3/4" Dry Moist Rd. Rel. Depth Curve Rock Dens. Cont Comp. Comp. Test No. Date Location No. (%) (pci) (%) (%) (%) FG 900 09/12/05 Unit 1.07; Lot 11 189 88 0 105.3 16.4 93 90 FG 901 09/13/05 Unit 1.07; Lot 12 190 88 0 104.4 17.3 92 90 FO 902 09/13/05 Unit 1.07; Lot 13 191 90 0 102.7 16.7 90 90 FG 903 09/13/05 Unit 1.07; Lot 14 191 90 0 102.9 15.2 91 90 FG 904 09/13/05 Unit 1.07; Lot 15 194 90 0 103.4 14.9 91 90 FG 905 09/14/05 Unit 1.07; Lot 16 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 194 90 0 105.8 15.2 93 90 FG 906 09/14/05 Unit 1.06; Lot 43 229 90 0 108.2 14.6 95 90 PG 907 09/14/05 Unit 1.06; Lot 42 230 90 0 107.5 14.8 95 90 FG 908 09/14/05 Unit 1.06; Lot 41 231 90 0 108.3 15.5 95 90 FG 909 09/14/05 Unit 1.06; Lot 23 249 90 0 102.8 16.0 90 90 FG 910 09/14/05 Unit 1.06; Lot 22 248 90 0 103.1 17.4 91 90 PG 911 09/14/05 Unit 1.06; Lot 21 247 90 0 103.0 16.3 91 90 FG 912 09/14/05 Unit 1.06; Lot 20 247 88 0 107.7 16.9 95 90 FG 913 09/14105 Unit 1.06; Lot 19 246 88 0 104.8 16.3 93 90 FG 914 09/14/05 Unit 1.06; Lot 18 246 88 0 107.2 16.1 95 90 FG 915 09/14/05 Unit 1.06; Lot 17 ------------------------------------------------------------------------------------------------------------------------------------------------------------- 246 88 0 103.3 13.7 91 90 FG 916 09/14/05 Unit 1.06; Lot 15 244 17 0 107.9 14.1 93 90 FG 917 09/14/05 Unit 1.06; Lot 16 245 17 0 109.4 14.5 94 90 FO 918 09/15/05 Unit 1.06; Lot 14 244 17 0 106.7 13.9 92 90 FG 919 09/15/05 Unit 1.06; Lot 13 243 17 0 107.7 15.2 92 -- 90 FG 920 09/15/05 Unit 1.06; Lot 12 243 17 0 108.6 13.7 93 90 FG 921 09/15/05 Unit 1.06; Lot 11 242 88 0 102.9 16.4 91 90 FG 922 09/15/05 Unit 1.06; Lot 10 241 88 0 103.0 18.1 91 90 FG 923 09/15/05 Unit 1.06; Lot 9 241 88 0 104.5 15.5 92 90 FG 924 09/15/05 Unit 1.06; Lot 8 240 - 88 0 104.5 15.5 92 90 925 09/15/05 Unit 1.06; Lot 56 258 88 0 104.9 16.2 93 90 926 09116/05 Unit 1.06; Lot 31 237 88 0 104.6 15.9 92 90 927 09/16/05 Unit 1.06; Lot 32 236 88 0 103.1 16.3 91 90 928 09/16/05 Unit 1.06; Lot 32; Stab Fill #1A 225 88 0 105.9 16.5 94 90 SZ 929 09/16/05 Unit 1.06; Stab Fill #1A 230 88 0 106.3 17.2 94 90 S Z -930 09/19105 Unit i.06; Lot 66 22288 -0 - 105:3 16.1 --90 931. 09/19/05 Unit 1.06; Lot 55 258 90 0 104.4 14.9 92 90 FG 932 09/19/05 Unit 1.06; Lot 7 239 90 0 103.7 15.5 91 90 ST 933 09/20/50 Unit 1.06; Lot 225 88 0 101.9 16.3 90 90 ST 934 09/20/50 Unit 1.06; Lot 217 88 0 102.4 17.2 90 90 ST 935 09/20/50 Unit 1.06; Lot 3 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 205 88 0 101.5 16.4 90 90 ST 936 09/20/50 Unit 1.06; Lot 1 206 88 0 102.7 17.4 91 90 937 09/21/05 Unit 1.06; Lot 66 229 88 0 103.3 16.7 91 90 938 09/21/05 Unit 1.06; Lot 67 218 88 0 102.6 18.5 91 90 FG 939 09/21/05 Unit 1.06; Lot 6 238 88 0 103.5 16.2 91 90 FG 940 09/21/05 Unit 1.06; Lot 5 234 88 0 104.2 16.1 -- 92 90 FG 941 09/21/05 Unit 1.06; Lot 4 228 88 0 105.9 16.5 94 90 FG 942 09/21/05 Unit 1.06; Lot 222 88 0 104.0 15.9 92 90 FG 943 09/21/05 Unit 1.06; Lot 216 88 0 103.5 15.8 91 90 FG 944 09/21/05 Unit 1.06; Lot 1 213 88 0 104.1 16.7 92 90 Project No. 06403-52-19B -- - - December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. or Depth (ft) Plus Field Field Field Req'd. 3/4' Dry Moist. Re!. Re!. Curve Rock Dens. Cont. Comp. Comp. No. (%) (pci) (%) (%) (%) Test No. Date Location FG 945 09/22/05 Unit 1.06; Lot 78 FG 946 09/22/05 Unit 1.06; Lot 77 FG 947 09/22/05 Unit 1.06; Lot 76 FG 948 09/22/05 Unit 1.06; Lot 75 FG 949 09/22/05 Unit 1.06; Lot 74 --------------------------------------------------------------------------------------- ST 950 09/22/05 Unit 1.06; Stab Fill #2 ST 951 09/22105 Unit 1.06; Stab Fill #2 ST 952 09/22/05 Unit 1.06; Stab Fill #2 ST 953 09/23/05 Unit 1.06; Lot 89 ST 954 09/23/05 Unit 1.06; Lot 90 ST 955 -------------------------------------------------------------------------------------- 09/23/05 Unit 1.06; Lot 92 FG 956 09/26/05 Unit 1.06; Lot 92 FG 957 09/26/05 Unit 1.06; Lot 91 FG 958 09/26/05 Unit 1.06; Lot 90 PG 959 09/26/05 Unit 1.06; Lot 89 FG 960 09/26/05 Unit 1.06; Lot 88 FG 961 09/26/05 Unit 1.06; Lot 87 FG 962 09/26/05 Unit 1.06; Lot 86 FG 963 09/26/05 Unit 1.06; Lot 85 FG 964 09/26/05 Unit 1.06; Lot 84 FG 965 -------------------------------------------------------------------------------------- 09/26/05 Unit 1.06; Lot 83 FG 966 09/26/05 Unit 1.06; Lot 82 967 09/27/05 Unit 1.06; Lot 66 968 09/27/05 Unit 1.06; Lot 68 FG 969 09/27/05 Unit 1.06; Lot 66 FG 970 09/27/05 Unit 1.06; Lot 67 PG 971 09/27/05 Unit 1.06; Lot 68 FG 972 09/27/05 Unit 1.06; Lot 69 FG 973 09/27/05 Unit 1.06; Lot 70 FG 974 09/27/05 Unit 1.06; Lot 71 FG 975 09/27/05 Unit 1.06; Lot 72 FG 976 09/28/05 Unit 1.06; Lot 73 PG 977 09/28/05 Unit 1.06; Lot 55 FG 978 09/28/05 Unit 1.06; Lot 56 PG 979 09/28/05 Unit 1.06; Lot 65 FG 980 09/28/05 Unit 1.06; Lot 31 PG 981 09/28/05 Unit 1.06; Lot 32 PG 982 09/29/05 Unit 1.06; Lot 33 FG 983 09/29/05 Unit 1.06; Lot 34 FG -- 984 09/29/05 Unit 1.06; Lot 44 ST 985 09/29/05 Unit 1.06; Lot 44. ST 986 09/29/05 Unit 1.06; Buttress Fill #1 ST 987 09/29/05 Unit 1.06; Buttress Fill #1 ST 988 09/30/05 Unit 1.06; Buttress Fill #1 ST 989 09/30/05 Unit 1.06; Stab Fill #1A 260 90 0 103.9 16.8 91 90 253 90 0 102.7 16.4 90 90 246 19 0 101.9 19.2 91 90 239 17 0 106.0 16.5 91 90 231 90 0 102.7 19.1 90 90 259 19 0 101.2 16.8 91 90 250 19 0 100.7 16.3 90 90 230 19 0 101.9 16.9 91 90 225 90 0 104.4 15.1 92 90 212 90 0 102.7 14.8 90 90 208 90 0 103.5 14.6 91 90 216 17 0 107.9 16.1 93 90 221 17 0 110.8 17.4 95 90 227 19 0 101.7 18.9 91 90 234 19 0 100.8 19.3 90 90 240 19 0 101.1 18.2 90 90 247 17 0 108.6 16.3 93 90 254 19 0 101.4 16.7 91 90 262 90 0 104.2 16.9 92 90 267 90 0 104.7 15.5 92 90 270 90 0 106.5 15.8 94 90 271 90 0 104.9 16.5 92 90 233 17 0 107.0 16.6 92 90 213 17 0 106.5 17.3 91 90 236 90 0 105.5 18.2 93 90 219 90 0 104.7 16.8 92 90 215 90 0 103.9 17.3 91 90 212 17 0 107.3 15.9 92 90 212 19 0 101.9 18.2 91 90 214 19 0 102.3 19.5 92 90 218 19 0 103.8 17.1 93 90 224 19 0 102.3 17.6 92 90 259 90 0 103.7 15.4 91 90 259 90 0 102.6 18.0 90 90 239 90 0 104.9 15.5 92 90 238 90 0 103.2 18.4 91 90 237 90 0 104.6 17.2 92 90 236 90 0 106.1 16.6 93 90 235 90 0 102.7 . 17.9 90 90 208 90 0 105.3 15.6 93 90 215 19 0 102.1 16.0 91 90 282 19 0 101.5 16.8 91 90 276 19 0 101.7 15.9 91 90 265 90 0 103.3 15.2 91 90 255 90 0 102.7 14.9 90 90 Project No. 06403-52-19B December 29, 2005 TABLE I SUMMARY OF FIELD DENSITY TEST RESULTS Elev. Plus Field Field Field Reqd. or 3/4" Dry Moist. Rel. Rel. Depth Cue Rock Dens. Cont. Comp. Comp. Test No. Date Location (ft) No. (°) (Pa) (%) (%) (%) ST 990 09/30/05 Unit 1.06; Stab Fill #IA 249 90 0 104.6 14.4 92 90 ST 991 09/30/05 Unit 1.06; Stab Fill #1A 225 90 0 102.9 15.7 91 90 ST 992 09/30/05 Unit 1.06; Lot 92 208 90 0 104.1 15.6 92 90 ST 993 09/30/05 Unit 1.06; Lot 75 233 90 0 102.5 14.4 90 90 SZ 994 10/03/05 Unit 1.06; Stab Fill #2 230 90 0 104.8 15.3 92 90 SZ 995 10/03/05 Unit 1.06; Stab Fill #2 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 219 90 0 105.7 16.8 93 90 SZ 996 10/03/05 Unit 1.06; Stab Fill #2 238 90 0 102.9 15.7 91 90 SZ 997 10/03/05 Unit 1.06; Stab Fill #2 236 90 0 105.5 16.3 93 90 SZ 998 10/03/05 Unit 1.06; Stab Fill #2 232 90 0 103.2 18.2 91 90 SZ 999 10/03/05 Unit 1.06; Stab Fill #2 246 90 0 104.8 15.3 92 90 SZ 1000 10/04/05 Unit 1.06; Stab Fill #2 250 90 0 106.9 17.9 94 90 SZ 1001 10/04/05 Unit 1.06; Stab Fill #2 260 90 0 103.3 14.5 91 90 SZ 1002 10/04/05 Unit 1.06; Stab Fill #2 262 90 0 106.1 17.2 93 90 SZ 1003 10/04/05 Unit 1.06; Stab Fill #2 254 90 0 104.9 16.8 92 90 ST 1004 10/05/05 Unit 1.06; Stab Fill #2 259 90 0 102.4 15.2 90 90 ST 1005 10/05/05 Unit 1.06; Stab Fill #2 257 90 0 106.9 16.8 94 90 ST 1006 10/05/05 Unit 1.06; Stab Fill #2 246 90 0 105.9 15.6 93 90 ST 1007 10/31/05 Unit 1.06; Lot 1 207 88 0 104.1 17.3 92 90 Project No. 06403-52-19B December 29, 2005 TABLE I EXPLANATION OF CODED TERMS - TEST SUFFIX A, B, C, . . - : Retest of previous density test failure, following moisture conditioning and/or recompaction. - STRIXE-OUT Fill in area of density test failure was removed and replaced with properly compacted fill soil. - PREFIX CODE DESIGNATION FOR TEST NUMBERS FG - FINISH GRADE ST - SLOPE TEST SZ - SLOPE ZONE - CURVE NO. Corresponds to curve numbers listed in the summary of laboratory maximum dry density and optimum moisture content test results table for selected fill soil samples encountered during testing and observation. - ROCK CORRECTION For density tests with rock percentage greater than zero, laboratory maximum dry density and optimum moisture content were adjusted for rock content. For tests with rock content equal to zero, laboratory maximum dry density and optimum moisture content values are unadjusted. - TYPE OF TEST SC: Sand Cone Test (ASTM D1556) NU: Nuclear Density Test (ASTM D2922) OT: Other - ELEVATION/DEPTH Test elevations/depths have been rounded to the nearest whole foot. Project No. 06403-52-19B December 29, 2005 TABLE II SUMMARY OF LABORATORY MAXIMUM DRY DENSITY AND OPTIMUM MOISTURE CONTENT TEST RESULTS ASTM D 1557-02 Sample No. Description Maximum Dry Density (pci) Optimum Moisture Content (% dry weight) 3 Yellow brown, Silty, fine to medium SAND 119.0 13.2 Light tan brown, Clayey, fine to coarse SAND (Santiago sand) 121.8 11.4 10 Olive brown, Silty SAND 114.0 13.0 16 Dark brown, Clayey, fine to coarse SAND 120.1 11.9 17 Light yellow brown, Silty, fine to medium SAND 116.5 13.3 19 Olive gray, Silty, fine SAND 111.8 15.8 23 Olive green to brown, fine, Sandy CLAY 114.1 16.4 29 Olive green to brown, Clayey, fine SAND 122.0 12.0 33 Light olive brown, fine SAND 116.5 13.5 74 Yellow brown, Silty, fine to medium SAND 123.9 11.0 75 Olive brown, Silty to Clayey, fine to medium SAND 113.9 15.8 77 Olive gray, fine to medium, Sandy CLAY 120.8 13.1 78 Olive brown, Clayey, fine to medium SAND 123.8 10.6 82 Light olive-brown, fine, Sandy SILT 120.0 13.2 86 Light olive to yellow brown, fine, Sandy SILT with trace clay 120.9 12.9 88 Light red brown, Silty to Clayey, fine SAND 113.2 15.9 90 Light yellow brown, fine Sandy SILT 113.7 14.2 Project No. 06403-52-198 December 29, 2005 TABLE III SUMMARY OF LABORATORY EXPANSION INDEX TEST RESULTS ASTM D 4829-03 Sample No. Moisture Content Dry Density (pci) Expansion Index Before Test (%) After Test (%) EI-E 11.9 24.8 106.4 87 El-Fa 11.5 22.5 106.4 61 EI-Fb 12.1 25.4 104.6 85 El-Fc 12.5 27.7 100.3 91 EI-G 10.5 22.9 107.9 63 El-H 11.5 23.8 106.0 69 El-I 12.1 24.6 105.4 73 El-I 11.9 23.6 105.1 62 El-K 12.3 25.3 105.3 77 EI-L 12.9 28.2 101.5 98 EI-M 11.7 21.8 104.9 32 El-N 11.6 24.0 104.8 60 EI-O 11.5 23.6 103.7 48 EL-P 13.7 26.0 102.1 75 EI-Q 13.9 28.4 95.5 64 EI-R 12.7 24.1 102.5 50 El-S 12.2 24.8 104.1 62 EI-T 12.8 23.9 104.5 59 El-U 12.5 24.4 104.8 67 El-V 11.6 24.9 102.8 63 El-W 12.2 24.8 102.8 58 EI-X 14.1 32.7 96.3 105 El-Y 11.8 26.5 102.1 64 El-Z 11.9 25.0 103.3 61 El-AA 12.2 25.7 102.9 64 El-AR 12.4 26.5 99.9 60 El-AC 12.3 23.8 102.7 38 El-AD 12.7 27.3 101.5 69 El-AR 14.6 31.8 95.9 93 El-AP 12.3 23.8 103.4 39 El-AG 11.9 23.9 102.4 39 El-AH 12.3 23.6 100.4 27 Project No. 06403-52-19B December 29, 2005 TABLE III (Continued) SUMMARY OF LABORATORY EXPANSION INDEX TEST RESULTS ASTM D 4829-03 Sample No. Moisture Content Dry Density (pci) Expansion Index Before Test (%) After Test (%) El-Al 13.3 25.9 97.0 34 EI-AJ 12.3 23.5 100.2 22 El-AK 11.4 22.7 105.2 36 El-AL 12.3 22.6 103.0 30 El-AM 11.7 22.3 105.4 49 El-AN 14.3 29.0 95.9 63 EI-AO 14.1 27.2 96.7 50 El-AP 14.7 31.0 96.2 84 EI-AQ 18.2 37.5 85.2 83 El-AR 13.9 30.5 96.2 57 El-AS 13.4 25.1 99.9 27 El-AT 14.2 31.5 96.9 86 El-AU 12.7 25.5 102.5 62 EI-AV 12.4 26.4 101.6 1 55 TABLE IV SUMMARY OF LABORATORY SHEAR TEST RESULTS ASTM 03080-03 Sample No. Dry Density (pci) Moisture Content (%) Unit Cohesion (psi) Angle of Shear Resistance (degrees) 3 104.8 15.5 505 30 74 113.6 16.8 150 34 86 108.0 13.1 255 33 88 102.7 15.0 235 36 90 102.8 13.6 70 36 Samples were remolded to a dry density of approximately 90 percent of the maximum dry density at near-optimum moisture content. Project No. 06403-52-19B December 29, 2005 TABLE V SUMMARY OF WATER-SOLUBLE SULFATE LABORATORY TEST RESULTS CALIFORNIA TEST NO. 417 Sample No. Water-Soluble Sulfate o) Sulfate Exposure UBC Table 19-A-4 EI-E 0.096 Negligible El-Fa 0.495 Severe Ei-Fb 0.120 Moderate El-Fe 0.255 Severe EI-G 0.090 Negligible El-H 0.675 Severe El-I 0.540 Severe EI-J 0.735 Severe El-K 0.465 Severe El-L 0.500 Severe EI-M 0.630 Severe El-N 0.210 Severe EI-O 0.705 Severe El-P 0.645 Severe EI-Q 0.765 Severe EI-R 0.360 Severe El-S 0.600 Severe E1-T 0.405 Severe El-U 0.435 Severe El-V 0.255 Severe EI-W 0.280 Severe EI-X 0.048 Negligible EI-Y 0.405 Severe EI-Z 0.340 Severe EI-AA 0.735 Severe El-AB 0.765 Severe El-AC 0.720 Severe El-AD 0.495 Severe El-AL 0.675 Severe El-AF 0.705 Severe El-AG 0.735 Severe E1-AH 0.585 Severe El-Al. 0.765 Severe Project No. 06403-52-19B December 29, 2005 TABLE V (Continued) SUMMARY OF WATER-SOLUBLE SULFATE LABORATORY TEST RESULTS CALIFORNIA TEST NO. 417 Sample No. Water-Soluble Sulfate (°") Sulfate Exposure UBC Table 19-A-4 El-AJ 0.720 Severe El-AK 0.630 Severe El-AL 0.630 Severe El-AM 0.585 Severe El-AN 0.720 Severe EI-AO 0.660 Severe El-AP 0.525 Severe EI-AQ 0.675 Severe El-AR 0.100 Moderate El-AS 0.600 Severe El-AT 0.360 Severe El-AU 0.555 Severe EI-AV 0.660 Severe Project No. 06403-52-193 December 29, 2005 TABLE VI SUMMARY OF FINISH GRADE EXPANSION INDEX TEST RESULTS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.06 LOTS 1 THROUGH 92 Lot No. Sample at Finish Grade Expansion Index UBC Classification 1 through 4 El-AM 49 Low 5 through 8 El-AL 30 Low 9 through 12 El-AK 36 Low 13 through 17 EI-AJ 22 Low 18 through 22 El-Al 34 Low 23 through 26 El-All 27 Low 27 through 29 El-AG 39 Low 30 through 32 El-AF 39 Low 33 through 36 EI-AE 93 High 37 through 40 El-AD 69 Medium 41 through 44 EI-Z 61 Medium 45 through 47 El-AN 63 Medium 48 through 50 EI-AO '50 Low 51 through 54 El-AP 84 Medium 55 and 56 El-AS 27 Low 57 through 60 EI-AQ 83 Medium 61 through 64 El-AR 57 Medium 65 El-AS 27 , Low 66 El-AS 27 Low 67 through 70 E1-AV 55 Medium 71 through 73 El-AU 62 Medium 74 through 77 El-AT 86 Medium 78 through 81 EI-Q 64 Medium 82 through 85 El-AC 38 Low 86 through 89 El-AB 60 Medium 90 through 92 El-AA 64 Medium Project No. 06403-52-19B ' December 29. 2005 TABLE VII SUMMARY OF FINISH GRADE EXPANSION INDEX TEST RESULTS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.07, LOTS 1 THROUGH 71 L° ° N . Sample at Finish Grade Expansion Index UBC Classification 1 through 3 EI-E 87 Medium 4 El-Fa 61 Medium 5 EI-Fb 85 Medium 6 El-Fe 91 High 7 through 9 EI-G 63 Medium lO through l3 EI-X 105 High 14 through 16 EI-Y 64 Medium 17 through 19 El-P 75 Medium 20 through 23 EI-O 48 Low 24 through 27 El-N 60 Medium 28 through 32 EI-W 58 Medium 33 through 35 El-V 63 Medium 36 and 37 El-U 67 Medium 38 through 41 El-T 59 Medium 42 and 43 El-U 67 Medium 44 through 46 El-S 62 Medium 47 through 49 EI-R 50 Low 50 through 53 EI-J 62 Medium 54 through 57 El-I 73 Medium 58 through 61 El-H 69 Medium 62 through 66 El-K 77 Medium 67 through 69 ELL 98 High 70 and 71 ELM 32 Low Project No. 06403-52-19B December 29, 2005 TABLE VIII SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.06, LOTS 1 THROUGH 92 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 1 Fill 44 28 2 Fill 31 15 3 Fill 41 20 4 Fill 37 23 5 Fill 32 8 6 Undercut due to cut/fill transition 30 26 7 Undercut due to cut/fill transition 30 22 8 Undercut due to cut/fill transition 27 24 9 Undercut due to cut/fill transition 6 2 10 Undercut due to cut/fill transition 7 4 11 Undercut due to cut/fill transition 13 10 12 Undercut due to cut/fill transition 5 1 13 Undercut due to cut/fill transition 6 3 14 Undercut due to cut/fill transition 6 2 15 Undercut due to cut/fill transition 7 4 16 Undercut due to cut/fill transition 9 5 17 Undercut due to cut/fill transition 11 8 18 Undercut due to cut/fill transition 13 11 19 Undercut due to cut/fill transition 12 9 20 Undercut due to cut/fill transition 11 7 21 Undercut due to cut/fill transition 7 4 22 Undercut due to cut/fill transition 7 3 23 Undercut due to cut/fill transition 7 4 24 Cut N/A N/A 25 Cut N/A N/A 26 Cut N/A N/A 27 Cut N/A N/A 28 Cut N/A N/A 29 Cut N/A N/A 30 Cut N/A N/A 31 Undercut due to cut/fill transition 4 1 Project No. 06403-52-19B December 29, 2005 4 TABLE VIII (Continued) SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA - THE GREENS I NEIGHBORHOOD 1.06, LOTS 1 THROUGH 92 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 32 Undercut due to cut/fill transition 19 16 33 Undercut due to cut/fill transition 10 7 34 Undercut due to cut/fill transition 20 15 35 Undercut due to cut/fill transition 14 11 36 Undercut due to cut/fill transition 8 3 37 Undercut due to cut/fill transition 9 6 38 Undercut due to cut/fill transition 15 11 39 Undercut due to cut/fill transition 11 8 40 Undercut due to cut/fill transition 22 20 41 Undercut due to cut/fill transition 22 20 42 Undercut due to cut/fill transition 35 32 43 Undercut due to cut/fill transition 35 32 44 Fill (Rec Lot) 34 33 45 Cut N/A N/A 46 Cut N/A N/A 47 Cut N/A N/A 48 Cut N/A N/A 49 Cut N/A N/A 50 Cut N/A N/A 51 Cut N/A N/A 52 Cut N/A N/A 53 Cut N/A N/A 54 Cut N/A N/A 55 Undercut due to cut/fill transition 4 1 56 Undercut due to cut/fill transition 4 1 57 Cut N/A N/A 58 Cut N/A N/A 59 Cut N/A N/A 60 Cut N/A N/A 61 Cut N/A N/A Project No. 06403-52-19B December 29, 2005 TABLE VIII (Continued) SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA -THE GREENS NEIGHBORHOOD 1.06, LOTS 1 THROUGH 92 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 62 Cut N/A N/A 63 Cut N/A N/A 64 Cut N/A N/A 65 Undercut due to cut/fill transition 4 1 66 Undercut due to cut/fill transition 9 6 67 Undercut due to cut/fill transition 10 7 68 Undercut due to cut/fill transition 27 20 69 Fill 28 14 70 Undercut due to cut/fill transition 16 13 71 Undercut due to cut/fill. transition 5 3 72 Undercut due to cut/fill transition 24 21 73 Undercut due to cut/fill transition 37 34 74 Fill 47 33 75 Fill 54 25 76 Fill 61 15 77 Fill 63 40 78 Fill 60 42 79 Fill 56 52 80 Undercut due to cut/fill transition 29 25 81 Undercut due to cut/fill transition 20 17 82 Undercut due to cut/fill transition 15 12 83 Undercut due to cut/fill transition 12 9 84 Undercut due to cut/fill transition 10 7 85 Undercut due to cut/fill transition 13 10 86 Fill 23 20 87 Fill 32 20 88 Fill 40 23 89 Fill 57 26 90 Fill 64 27 91 Fill 58 15 92 Fill 50 18 Project No. 06403-52-19B December 29, 2005 TABLE IX SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.07, LOTS 1 THROUGH 71 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 1 Fill 36 24 2 Fill 23 9 3 Fill 21 8 4 Fill 21 16 5 Undercut due to cut/fill transition 4 1 6 Undercut due to cut/fill transition 5 2 7 Undercut due to cut/fill transition 5 2 8 Undercut due to cut/fill transition 16 13 9 Undercut due to cut/fill transition 6 2 10 Fill 35 32 11 Fill 41 22 12 Fill 41 11 13 Fill 44 14 14 Fill 44 16 15 Fill 41 18 16 Fill 31 26 17 Fill 57 34 18 Fill 69 25 19 Fill 71 16 20 Fill 66 11 21 Fill 59 2 22 Fill 46 6 23 Fill 39 12 24 Fill 25 12 25 Fill 13 6 26 Undercut due to cut/fill transition 7 4 27 Undercut due to cut/fill transition 4 1 28 Fill 30 27 29 Undercut due to cut/fill transition 24 21 30 Undercut due to cut/fill transition 22 19 31 Undercut due to cut/fill transition 24 21 32 Undercut due to cut/fill transition 28 25 Project No. 06403-52-19B December 29, 2005 TABLE IX (Continued) SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.07, LOTS 1 THROUGH 71 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 33 Fill 28 12 34 Fill 29 16 35 Fill 29 18 36 Undercut due to cut/fill transition 17 14 37 Undercut due to cut/fill transition 9 6 38 Fill 27 24 39 Fill 26 4 40 Fill 36 15 41 Fill 33 20 42 Fill 36 27 43 Fill 34 27 44 Fill 31 3 45 Fill 27 3 46 Fill 26 2 47 Fill 25 2 48 Fill 22 1 49 Fill 23 3 50 Fill 36 7 51 Fill 46 5 52 Fill 40 4 53 Fill 28 1 54 Fill 33 7 55 Fill 34 12 56 Fill 35 16 57 Fill 38 23 58 Fill 35 20 59 Fill 33 20 60 Fill 29 18 61 Undercut due to cut/fill transition 20 17 62 Undercut due to cut/fill transition 11 8 63 Undercut due to cut/fill transition 24 20 64 Undercut due to cut/fill transition 39 36 65 Undercut due to cut/fill transition 41 37 Project No. 06403-52-19B December 29, 2005 TABLE IX (Continued) SUMMARY OF AS-GRADED BUILDING PAD CONDITIONS VILLAGES OF LA COSTA - THE GREENS NEIGHBORHOOD 1.07, LOTS 1 THROUGH 71 Lot No. Pad Condition Approximate Maximum Depth of Fill Approximate Depth of Differential Fill 66 Undercut due to cut/fill transition 25 22 67 Undercut due to cut/fill transition 29 1 26 68 Undercut due to cut/fill transition 29 26 69 Undercut due to cut/fill transition 31 28 70 Undercut due to cut/fill transition 30 27 71 Undercut due to cut/fill transition 28 25 Project No. 06403-52-19B December 29, 2005 APPENDIX A SETTLEMENT MONITORING PROGRAM Two buried settlement plates and two surface settlement monuments, as shown on the "As-Graded" Geologic Map (Figure 6), were installed during grading to monitor the settlement of the fill and underlying alluvium during construction. Buried settlement plates were set at the bottom of the cleanout and compacted fill was placed to achieve design grade. After the placement of the surcharge fill, the buried plates were then drilled, tagged, and surveyed. The survey data obtained from the buried settlement plates were used as a baseline for the monitoring program. Three surface monuments consisting of 1-foot-square steel plates and 4-foot long, 1-inch-diameter steel rods were installed. The monuments were surveyed on a weekly basis by the project civil engineer, Hunsaker and Associates. The results of the settlement-monitoring program are based on recorded field data for 1 each settlement monitoring station. Settlement data presented in Appendix A represents measured vertical movement in the field. Based on the survey measurements, it is our opinion that the primary settlement was essentially complete after 124 days. Project No. 06403-52-19B December 29, 2005 Villages of La Costa - The Greens Neighborhood 1.07 Settlement Montoring Program Days 10 20 30 40 50 60 70 80 90 100 110 120 130 -4- -- - - - - - - - - - - - - - - - - - - - - - - - -%_ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - I Plate #2 Plate #3