Loading...
712, To construct a guest house, re, Studies & ReportsDist. Office 12.02 Sheet 1 of 1 Coukf Los Angeles Department of Public Work DISTRIBUTION GEOTECHNICAL AND MATERIALS ENGINEERING DIVISION 1 Dist. Office GEOLOGIC AND SOILS ENGINEERING REVIEW SHEET 1 Geologist 900 So. Fremont Ave., Alhambra, CA 91803 1 Soils Engineer TEL. (626) 458-4925 1 GMED File Tract / Parcel Map Lot(s) Parent Tract Location City of Rolling Hills Site Address 1 Crest Road APN 7567-011-027 Geologist Coast Geotechnical, Inc. Developer/Owner Huh Soils Engineer SWN Soiltech Consultants, Inc. Engineer/Arch. Bolton Engineering Review of: In -Progress Report No. 1 (Reference Grading P.C. No. 0702130001 Geologic Report Dated Soils Engineering Report Dated 7/9/08 (4708-07) Geology and Soils Engineering Report Dated Remarks/Conditions: 1) Receipt of the above referenced report(s) is acknowledged. 2) Per conditions of approval, monthly progress reports must be submitted by the engineering geologist. These reports should include inspection of all cuts made prior to wall construction, and inspection of fill keys prior to fill placement. Prepared by MY tygti NO. C67563 EXR 6/30/09 Charles Nestle Geology Section Date 8/12/08 Please complete a Customer Service Survey at htto://draw.lacountv.aov/ao/amedsurvev P:\Gmepub\Geology Review\Forms\Form06ipr.doc 8/30/07 ULTANTINC. SWN S©1LTECH CONS ' , Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 July 9, 2008 County of Los Angeles Department of Public Works Geotechnical and Materials Engineering Division 900 So. Fremont Avenue Alhambra, California 91803 Attn: Charles Nestle Project Ref 4708-07 E EIVED FEB 10 2009 City of Rolling Hills By Subject:In-Progress Compaction Report for June 2008 Fill Slopes Below Main House and Proposed Guest House Proposed Residential Development #1 Crest Road East Rolling Hills, California Ref. Report Of Soils Engineering Investigation dated July 16, 2006 Addenda dated July 20, 2007; February 28, 2008 and June 11, 2008 Submitted herewith is an in -progress report of observation and tests performed during grading in June 2008 for the construction of fill slopes at the subject site. Our soils engineering observation and testing have been conducted in conjunction with engineering geologic inspection by Coast Geotechnical, whose reports should be reviewed in conjunction with this report. Proposed Construction The proposed construction is shown on a Grading Plan prepared by Bolton Engineering Corporation. We understand that the proposed development will consist of the following: • A room addition with a basement on the southeast side of the existing house; • A guest house to the east of the house; • Retaining walls in conjunction with the proposed structures; • Minor grade changes and slope construction to create level pads for the proposed structures; and • Relocation of the septic system. SWN Soiltech Consultants Inc. Project Ref. 4708-07 July 9, 2008 Page 2 of 4 Grading consists of preparing level pads for the proposed guest house and the backyard. The resulting fill slopes will be no higher than 10 feet and no steeper than 2:1 (Horizontal to Vertical). Scope Of Work Our services during grading of the site included: 1. Observation of keyways at the toes of the fill slopes; 2. Observation of placement of compacted fill; 3. Observation of benching of fill soils into firm natural soils or bedrock; 4. Testing of the compacted fill; 5. Laboratory testing of representative samples of the fill soils; 6. Engineering analysis; and 7. Preparation of this report. Grading Procedures In general, grading and compaction of the fill soils were performed as follows: 1. The areas to receive fill soils were first cleared of debris and surface vegetation. 2. A keyway was made at the toe of the fill slope for the proposed guest house. The keyway is approximately 13 feet wide, up to 6 feet deep and at least 2 feet into firm natural soils, measured from the down -slope side of the keyway. 3. A keyway was made at the toe of the fill slope below the main house. The keyway is approximately 13 feet wide, up to 3.5 feet deep and at least 2 feet into firm bedrock, measured from the down -slope side of the keyway. 4. The exposed firm natural soils or bedrock were scarified and rolled with a crawler - tractor -mounted shovel prior to placement of compacted fill. 5. The new fill was spread, moistened and compacted in lifts of 6 to 8 inches in thickness. Compaction was obtained by means of rolling with the crawler -tractor - mounted shovel. 2 SWN Soiltech Consultants, Inc. Project Ref. 4708-07 July 9, 2008 • Page 3 of 4 6. The new fill consisted of a mixture of the excavated on -site soils and bedrock. 7. The fill soils were benched into bedrock as filling progressed up the slope. 8. The specified minimum degree of compaction was 90% of the maximum density as determined by the ASTM D 1557 standard. Maximum density and optimum moisture content of representative samples of the soils used in the compacted fill are shown on Table II, "Summary of Laboratory Density Determinations." 9. In place density tests were performed in accordance with ASTM D 1556. Field in - place density test results are tabulated on Table I, "Summary of Field Density Determinations." 10. Rocks larger than 8 inches in maximum dimension were excluded from the fill. Conclusions Based on the observations and tests performed during grading, it is our professional opinion that the compacted fill has been placed in accordance with our recommendations and specifications. The compacted fill so placed is considered adequate for the proposed residential development. Remarks This report has been substantiated by soils engineering observation during grading, and field and laboratory tests considered necessary in the circumstances. Our findings were made in conformance with generally accepted professional engineering practice, and no further warranty is implied nor made. It is the professional opinion of the undersigned that this report presents fairly the information requested. Very truly yours, SWN Soiltech Consultants Stephen W. Ng GE 637 Q�{OFESs i ��BENWg1-&Nyl� • &��c o No.637 �/ lz E) 3-31- / N FOTEC t-00. � <-- FCAL. 3 SWN Soiltech Consultants Inc. Project Ref. 4708-07 July 9, 2008 TABLE I SUMMARY OF FIELD DENSITY DETERMINATIONS (Test Standard ASTM D 1556) Page 4 of 4 In -Place In -Place Moisture Test Dry Content Soil Rel. No. Date Elev.* Density (% Dry Wt.) Type Comp. Remarks 1 6/16/08 68 88.8 pcf 21.7% A 92% 2 6/17/08 70 87.6 pcf 20.5% A 91% 3 6/18/08 72 87.2 pcf 25.5% A 90% 4 6/18/08 74 88.3 pcf 23.9% A 92% 5 6/19/08 76 90.0 pcf 21.7% A 93% 6 6/19/08 77 87.1 pcf 22.6% A 90% Slope** 7 6/23/08 78 87.5 pcf 22.1% A 91% 8 6/30/08 65 84.0 pcf 27.0% B 94% 9 6/30/08 67 87.3 pcf 20.6% A 91% * Elevation from Grading Plan prepared by Bolton Engineering Corporation, in feet. **Test taken within 12" of slope surface. TABLE II SUMMARY OF LABORATORY DENSITY DETERMINATIONS (Test Standard ASTM D 1557) Optimum Soil Maximum Moisture Content Type Dry Density (% Dry Wt) A - Clay, silty, bedrock fragments 96.5 pcf 23.0% B - Silt, clayey, bedrock fragments 89.0 pcf 30.0% 4 • • Dist. Office 12.02 Sheet 1 of 1 County of Los Angeles Department of Public Works DISTRIBUTION GEOTECHNICAL AND MATERIALS ENGINEERING DIVISION 1 Dist. Office GEOLOGIC AND SOILS ENGINEERING REVIEW SHEET 1 Geologist 900 So. Fremont Ave., Alhambra, CA 91803 1 Soils Engineer TEL. (626) 458-4925 1 GMED File Tract / Parcel Map Lot(s) Parent Tract Location City of Rolling Hills Site Address 1 Crest Road APN 7567-011-027 Geologist Coast Geotechnical, Inc. Developer/Owner Huh Soils Engineer SWN Soiltech Consultants, Inc. Engineer/Arch. Bolton Engineering Review of: In -Progress Report No. 2 (Reference Grading P.C. No. 0702130001 Geologic Report Dated Soils Engineering Report Dated 8/13/08 (4708-07) Geology and Soils Engineering Report Dated Remarks/Conditions: 1) Receipt of the above referenced report(s) is acknowledged. 2) Per conditions of approval, monthly progress reports must be submitted by the engineering geologist. These reports should include inspection of all cuts made prior to wall construction, and inspection of fill keys prior to fill placement. Prepared by Charles Nestle Geology Section Date 9/4/08 Please complete a Customer Service Survey at htto://dow.lacountv.aov/ao/amedsurvev P:\Gmepub\Geology Review \ Forms \Form06ipr.doc 8/30/07 • • SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 August 13, 2008 County of Los Angeles Department of Public Works Geotechnical and Materials Engineering Division 900 So. Fremont Avenue Alhambra, California 91803 Attn: Charles Nestle Project Ref. 4708-07 I�L�(�E8VE [1 ,pi 11Xl82008 PROCESSING CENTER I LAND DEVELOPMENT DIVISION Subject:In-Progress Compaction Report for July 2008 Fill Slopes Below Main House and Proposed Guest House Proposed Residential Development #1 Crest Road East Rolling Hills, California Ref. "Report of Soils Engineering Investigation," July 16, 2006 "Addenda," July 20, 2007; February 28, 2008 and June 11, 2008 "In -Progress Compaction Report for June 2008," July 9, 2008 Submitted herewith is an in -progress report of observation and tests performed during grading in July 2008 for the construction of fill slopes at the subject site. Our soils engineering observation and testing have been conducted in conjunction with engineering geologic inspection by Coast Geotechnical, whose reports should be reviewed in conjunction with this report. Proposed Construction The proposed construction is shown on a Grading Plan prepared by Bolton Engineering Corporation. We understand that the proposed development will consist of the following: • A room addition with a basement on the southeast side of the existing house; • A guest house to the east of the house; • Retaining walls in conjunction with the proposed structures; SWN Soiltech Consultants, Inc. Project Ref. 4708-07 August 13, 2008 Page 2 of 6 • Minor grade changes and slope construction to create level pads for the proposed structures; and • Relocation of the septic system. Grading consists of preparing level pads for the proposed guesthouse and the backyard. The resulting fill slopes will be no higher than 10 feet and no steeper than, 2:1 (Horizontal to Vertical). Scope Of Work Our services during grading of the site included: 1. Observation of keyways at the toes of the fill slopes; 2. Observation of placement of compacted fill; 3. Observation of benching of fill soils into firm natural soils or bedrock; 4. Testing of the compacted fill; 5. Laboratory testing of representative samples of the fill soils; 6. Engineering analysis; and 7. Preparation of this report. Grading Procedures In general, grading and compaction of the fill soils were performed as follows: 1. The areas to receive fill soils were first cleared of debris and surface vegetation. 2. A keyway was made at the toe of the fill slope for the proposed guest house. The keyway is approximately 13 feet wide, up to 6 feet deep and at least 2 feet into firm natural soils, measured from the down -slope side of the keyway. 3. A keyway was made at the toe of the fill slope below the main house. The keyway is approximately 13 feet wide, up to 3.5 feet deep and at least 2 feet into firm bedrock, measured from the down -slope side of the keyway. 2 SWN Soiltech Consultants, Inc. Project Ref. 4708-07 August 13, 2008 Page 3 of 6 4. An additional keyway was made to extend the fill slope below the main house. The keyway is approximately 13 feet wide, up to 3 feet deep and at least 2 feet into firm natural soils or bedrock, measured from the down -slope side of the keyway. 5. The exposed firm natural soils or bedrock were scarified and rolled with a crawler - tractor -mounted shovel prior to placement of compacted fill. 6. The new fill was spread, moistened and compacted in lifts of 6 to 8 inches in thickness. Compaction was obtained by means of rolling with the crawler -tractor - mounted shovel. 7. The new fill consisted of a mixture of the excavated on -site soils and bedrock. 8. The fill soils were benched into bedrock as filling progressed up the slope. 9. The specified minimum degree of compaction was 90% of the maximum density as determined by the ASTM D 1557 standard. Maximum density and optimum moisture content of representative samples of the soils used in the compacted fill are shown on Table II, "Summary of Laboratory Density Determinations." 10. In -place density tests were performed in accordance with ASTM D 1556. Field in - place density test results are tabulated on Table I, "Summary of Field Density Determinations." 11. Rocks larger than 8 inches in maximum dimension were excluded .from the fill. Conclusions Based on the observations and tests performed during grading, it is our professional opinion that the compacted fill has been placed in accordance with our recommendations and specifications. The compacted fill so placed is considered adequate for the proposed residential development. Remarks This report has been substantiated by soils engineering observation during grading, and field and laboratory tests considered necessary in the circumstances. Our findings were made in conformance with generally accepted professional engineering practice, and no further warranty is implied nor made. 3 • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 August 13, 2008 Page 4 of 6 It is the professional opinion of the undersigned that this report presents fairly the information requested. Very truly yours, SWN Soiltech Consulta Stephen W. Ng GE 637 No. 63i. 4 • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 August 13, 2008 TABLE I SUMMARY OF FIELD DENSITY DETERMINATIONS (Test Standard ASTM D 1556) Page 5 of 6 In -Place In -Place Moisture Test Dry Content Soil Rel. No. Date Elev.* Density (% Dry Wt.) Type Comp. Remarks 10 7/01/08 68 91.9 pcf 23.5% A 95% 11 7/02/08 69 82.7 pcf 33.3% B 93% 12 7/07/08 70 89.2 pcf 25.6% A 92% 13 7/08/08 71 80.9 pcf 33.1% B 91% 14 7/09/08 72 83.3 pcf 28.3% B 94% 15 7/10/08 73 89.4 pcf 26.0% A 93% Slope** 16 7/11/08 73.5 89.1 pcf 25.8% A 92% 17 7/14/08 74 87.6 pcf 26.3% A 91% 18 7/15/08 75 80.3 pcf 30.9% B 90% 19 7/17/08 76 82.3 pcf 31.2% B 93% 20 7/18/08 77 85.0 pcf 32.8% B 95% 21 7/22/08 77.5 89.5 pcf 24.3% A 93% 22 7/23/08 77.5 87.5 pcf 25.3% A 91% 23 7/31/08 61 88.2 pcf 23.5% A 91% 24 7/31/08 62.5 89.5 pcf 22.1% A 93% * Elevation from Grading Plan prepared by Bolton Engineering Corporation, in feet. ** Test taken within 12" of slope surface. 5 • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 August 13, 2008 Page 6 of 6 TABLE II SUMMARY OF LABORATORY DENSITY DETERMINATIONS (Test Standard ASTM D 1557) Optimum Soil Maximum Moisture Content Type Dry Density (% Dry WO A — Clay, silty, bedrock fragments 96.5 pcf 23.0% B — Silt, clayey, bedrock fragments 89.0 pcf 30.0% 6 • • Dist. Office 12.02 Sheet 1 of 1 County of Los Angeles Department of Public Works DISTRIBUTION GEOTECHNICAL AND MATERIALS ENGINEERING DIVISION 1 Dist. Office GEOLOGIC AND SOILS ENGINEERING REVIEW SHEET 1 Geologist 900 So. Fremont Ave., Alhambra, CA 91803 1 Soils Engineer TEL. (626) 458-4925 1 GMED File Tract! Parcel Map Lot(s) Parent Tract Location City of Rolling Hills Site Address 1 Crest Road APN 7567-011-027 Geologist Coast Geotechnical, Inc. Developer/Owner Huh Soils Engineer SWN Soiltech Consultants, Inc. Engineer/Arch. Bolton Engineering Review of: In -Progress Report No. 3 Geologic Report Dated Soils Engineering Report Dated 9/3/08 (4708-07) Geology and Soils Engineering Report Dated (Reference Grading P.C. No. 0702130001 ) Remarks/Conditions: 1) Receipt of the above referenced report(s) is acknowledged. 2) Per conditions of approval, monthly progress reports must be submitted by the engineering geologist. These reports should include inspection of all cuts made prior to wall construction, and inspection of fill keys prior to fill placement. Prepared by Charles Nestle Geology Section Date 11/4/08 Please complete a Customer Service Survey at http://dpw.lacountv.00v/ao/amedsurvev P:\Gmepub\Geology Review\Forms\Form06ipr.doc 8/30/07 • • SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 Project Ref. 4708-07 September 3, 2008 County of Los Angeles Department of Public Works Geotechnical and Materials Engineering Division 900 So. Fremont Avenue Alhambra, California 91803 Attn: Charles Nestle Subject:In-Progress Compaction Report for August 2008 Fill Slopes Below Main House and Proposed Guest House Proposed Residential Development #1 Crest Road East Rolling Hills, California Ref. "Report of Soils Engineering Investigation," July 16, 2006 "Addenda," July 20, 2007; February 28, 2008 and June 11, 2008 "In -Progress Compaction Report for June 2008," July 9, 2008 "In -Progress Compaction Report for July 2008," August 13, 2008 Submitted herewith is an in -progress report of observation and tests performed during grading in August 2008 for the construction of fill slopes at the subject site. Our soils engineering observation and testing have been conducted in conjunction with engineering geologic inspection by Coast Geotechnical, whose reports should be reviewed in conjunction with this report. Proposed Construction The proposed construction is shown on a Grading Plan prepared by Bolton Engineering Corporation. We understand that the proposed development will consist of the following: • A room addition with a basement on the southeast side of the existing house; • A room addition on thenorthwest side of the existing house; • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 September 3, 2008 Page 2 of 6 • A guest house to the east of the house; • Retaining walls in conjunction with the proposed structures; • Minor grade changes and slope construction to create level pads for the proposed structures; and • Relocation of the septic system. Grading consists of preparing level pads for the proposed guesthouse and the backyard. The resulting fill slopes will be no higher than 15 feet and no steeper than 2:1 (Horizontal to Vertical). Scope Of Work Our services during grading of the site included: 1. Observation of keyways at the toes of the fill slopes; 2. Observation of placement of compacted fill; 3. Observation of benching of fill soils into firm natural soils or bedrock; 4. Testing of the compacted fill; 5. Laboratory testing of representative samples of the fill soils; 6. Engineering analysis; and 7. Preparation of this report. Grading Procedures In general, grading and compaction of the fill soils were performed as follows: 1. The areas to receive fill soils were first cleared of debris and surface vegetation. 2. A keyway was made at the toe of the fill slope for the proposed guest house. The keyway is approximately 13 feet wide, up to 6 feet deep and at least 2 feet into firm natural soils, measured from the down -slope side of the keyway. 2 • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 September 3, 2008 Page 3 of 6 3. A keyway was made at the toe of the fill slope below the main house. The keyway is approximately 13 feet wide, up to 3.5 feet deep and at least 2 feet into firm bedrock, measured from the down -slope side of the keyway. 4. An additional keyway was made to extend the fill slope below the main house. The keyway is approximately 13 feet wide, up to 3 feet deep and at least 2 feet into firm natural soils or bedrock, measured from the down -slope side of the keyway. 5. The exposed firm natural soils or bedrock were scarified and rolled with a crawler - tractor -mounted shovel prior to placement of compacted fill. 6. The new fill was spread, moistened and compacted in lifts of 6 to 8 inches in thickness. Compaction was obtained by means of rolling with the crawler -tractor - mounted shovel. 7. The new fill consisted of a mixture of the excavated on -site soils, import soils, and bedrock. 8. The fill soils were benched into bedrock as filling progressed up the slope. 9. The specified minimum degree of compaction was 90% of the maximum density as determined by the ASTM D 1557 standard. Maximum density and optimum moisture content of representative samples of the soils used in the compacted fill are shown on Table II, "Summary of Laboratory Density Determinations." 10. In -place density tests were performed in accordance with ASTM D 1556. Field in - place density test results are tabulated on Table I, "Summary . of Field Density Determinations." 11. Rocks larger than 8 inches in maximum dimension were excluded from the fill. Conclusions Based on the observations and tests performed during grading, it is our professional opinion that the compacted fill has been placed in accordance with our recommendations and specifications. The compacted fill so placed is considered adequate for the proposed residential development. 3 SWN Soiltech Consultants, Inc. Project Ref. 4708-07 September 3, 2008 Remarks Page 4 of 6 This report has been substantiated by soils engineering observation during grading, and field and laboratory tests considered necessary in the circumstances. Our findings were made in conformance with generally accepted professional engineering practice, and no further warranty is implied nor made. It is the professional opinion of the undersigned that this report presents fairly the information requested. Very truly yours, ��QROFESS/pyF , SWN Soiltech Consult c..ii�o2�; L.� ' No. 637 Exp. 333-/O �.. Stephen W. Ng cry or6rHH\5,P` GE 637 9rfiOF cp off'*�� 4 SWN Soiltech Consultants, Inc. Project Ref. 4708-07 September 3, 2008 TABLE I SUMMARY OF FIELD DENSITY DETERMINATIONS (Test Standard ASTM D 1556) Page 5 of 6 In -Place In -Place Moisture Test Dry Content Soil Rel. No. Date Elev.* Density (% Dry Wt.) Type Comp. Remarks 25 8/04/08 64 90.2 pcf 25.4% A 94% 26 8/04/08 65.5 80.4 pcf 32.7% B 90% 27 8/06/08 67 88.9 pcf 25.5% A 92% 28 8/12/08 68.5 83.4 pcf 28.4% B 94% 29 8/13/08 70 90.0 pcf 21.9% A 93% 30 8/14/08 71 80.9 pcf 27.9% B 91% Slope** 31 8/18/08 71.5 87.7 pcf 20.2% A 91% 32 8/20/08 73 80.3 pcf 29.0% B 90% 33 8/22/08 74.5 81.6 pcf 27.2% B 92% 34 8/25/08 76 84.0 pcf 29.5% C 93% 35 8/26/08 77 82.2 pcf 29.1% C 91% 36 8/28/08 77.5 84.7 pcf 28.3% C 94% * Elevation from Grading Plan prepared by Bolton Engineering Corporation, in feet. * * Test taken within 12" of slope surface. 5 • • SWN Soiltech Consultants, Inc. Project Ref. 4708-07 September 3, 2008 Page 6 of 6 TABLE II SUMMARY OF LABORATORY DENSITY DETERMINATIONS (Test Standard ASTM D 1557) Optimum Soil Maximum Moisture Content Type Dry Density (% Dry Wt) A — Clay, silty, bedrock fragments 96.5 pcf 23.0% B — Silt, clayey, bedrock fragments 89.0 pcf 30.0% C — Clay, silty, bedrock fragments (Import) 90.0 pcf 30.0% 6 { SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date 111 /Oc) f ibv4L.�, Time '1 :(7D PM Project Name 1-\„Lr I Ref. 0 j - 01 Address \ f .v.;,- ° `,Ir.) �-.i- f<!.a1\i 4)i•, Requested by r-)wr-.. rlarr . 5 Met With Notice Left With r ^E` S't-3re SWN Soiltech Consultants Report dated Plan by \ L' i-4 ar\A n re" Dated We have observed ti ,10... .�� i .r, rl � r�� vi)nv't- Approved Not Approved See Below General Comments and Conditions of Approval: c.YFYi e �2, "> i Th r-col �'7k `!� v-i1+svz*a r va IMee,rn cl it)" e-0..X Jf1rCam+ .w.x• N 1 o^t 4,^N . ar,d" !elf'Av"4-i1 .n,r1 ".> Additional Site Visit Required For SWN Soiltech Consultants, Inc. Not Required Total Hours Time Approved by I SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818r282-6838 ( NOTICE OF FI LD OBSERVATION Date 041 ht)/in. Project Name Address "64.,/ ,f'.105.C7- /60 L. Requested by /7/.14/1(7 /1,!"4:7_,e Met With Notice Left With 47/72; Time cD. Ref . 4241/4(///4- ,'//// SWN Soiltech Consultants Report dated Plan by ._1r,4:c,04 Vittr:07/„..17 "24' 'fr/f/7(1 7 Dated al2 We have observed )/6;W9/977(6X/ /5-":7.1"65714172170/} oq-Ae/r.46 (2) Ac-,12,43:2/-7 /4-1/70/25;/./ //2,424 Pr/eY Approved Not Approved General Comments and Conditions 5 /W72 /ACfr/ /6:22,4 See Below of Approval: (i) .04:7 3,e .4/Ni NA) al el "5/247 ritzfr775--- /2e /2/rt,g:: • Zoe, 1247/5i0./.5' /XI /'" ie.' 6')(' 7- /2 1'/7i7,1 z) 9126,i!' efe' Additional Site Visit ) / C e./..:1772.: (7 AtiA " /AZ) 72,4:7 ,477/PcA57:',„) .V.Required For SWN Soiltech Consultants, 2 Total Hours Inc. Time Approved by Not Required SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date )-21‘61 (mt.- C,r,84...., Time ..) :30 R in Project Name 1.-\'‘'), Ref. i-hoir - o"? Address \ r‘re4 V.04A n ' Requested by Nit-) ,,,- rw-1 oNr Met With Notice Left With ai c4e_ SWN Soiltech Consultants Report dated c..71 Plan by \l'o\-1-"Ove\ o*". Dated We have observed •caAAA44;0" /9 . )(re-N.4-41r ef V,-2c2 OSel Ileci r 6 Ov-h44 11. Vfl Approved Not Approved See Below General Comments and Conditions of Approval: 1VNIe P 1 'A"› r p\\\ ? 4 11 Pel- 1,ncleNPs t7)(1"" C • ) C. Ill „A ACV), t 1Nr. V<._ el,"-kove. •),/^.,r'Nf"- Additional Site Visit Ve'Required Not R quired For SWN Soiltech Consultants, Inc. Total Hours Time Approved by r SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date 0' 11'1.10 . - f b" r r c. Time 10: I() Arl Project Name VOA Ref. 4{ T (),t, Cr) Address {� �r"�r�C` .•a ? G Requested by u rfrA Met With Notice Left With ,\* 5 A+e SWN Soiltech Consultants Report dated Plan by /•-r.y..r.-�-feL, if,- /0-7 Dated We have observed '1-ra i oP\-cc,i..;c.-1-; e-sn a- ` ,`Ve c-��r „0,„. t- � G r.x 1. r rlr�:. �"^�ae� 4- -C r i re. .t!.+ "'VI) 44G4t°'r` +..-"" ird C Approved Not Approved See Below General Comments and Conditions of Approval: �(Ki'v�rlc-35".r1,� �r'i'y- %..-c-to`.� 1 t^� V�t�rr�^Stn'+�� a \r r S ih11.75 n c_ - Ce,1P rt- l/f- r 't 9r U c"' CO 1 5 .rtiI-A rL '›. ► n i nrti�._. fir"et' f, ca�..✓�c k , Qv"s Additional Site Visit Required For SWN Soiltech Consultants, Inc. ✓'et.ps,..�� 7f �..:� braes✓' Not equired Total Hours,. Time Approved by Date • SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 2. k Project Name Requested by Met With Notice Left With Address NOTICE OF FIELD OBSERVATION -k • (dire rk i 5 Time PtP-1 Ref. 11? SWN Soiltech Consultants Report dated' Plan .by oc4F. r c • We have observed \ , is.9eAr I,— cid e-k c.\\ - V Approved See Below Not Approved General Comments and Conditions of Approval: Iletr) f..." 6" w^,, 1••••"`.;1 fve,-71 7,, ,cs ,kf ASA -nrr• 1 \-10: (r-12(2,- ..-I'r? .7, • LI '' 1- leNe 9,re., 0 tit c)fiC,‘fet-el'S ?Cr Of • 1 Dated 1.-r) 0 fir •"tc-1 k,4"P Cl c,+, rk /CT ,")1 0 M.. 01-11)(t rov"147;1 (71,(` (.7)( ttr,G•4r2 ' :far r) -•tt:'1 Additional Site Visit \Required For SWN Soiltech Consultants, Inc. 4- c"7. ;.,"‘ r (7I 9, 1 ", CILI,Vr C;47170v Total Hours Time Approved by SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date \1 ko (Os --INN.,,r5,8 Project Name Address Requested by Met With Notice Left With 6,� Time k 1 &c(,t, �� ��.c - ,�11, 1)\ ., t Jt?Js-, i 1 or t, SWN Soiltech Consultants Report dated Plan by o\+;,,1 cf..%"Qee-;✓,3 We have observed i f LI" 4:.rA? �tA pV-- Ref. cn O t - ai Dated J 'cr', ,f Approved Not Approved r c c:..X't'i't.'7,-1 "co r^ r. r- CO.", -1- rj _ t See Below General Comments and Conditions of Approval: 1 `�1 '1. >,+-r- . ,.ram P' •t r.�t�"i� !�, 6331., t)r'1E? cot" <}J ,0 a*le'r ` ✓'t, C V At r "\')c.. ,ram �^+r t",r 7.-. ) Z r.,� r ter i to r —V `s \ -:: <,+,r ¢.. t, r c f C 1/4•47 '? U ✓T. Additional Site Visit \, Required For SWN Soiltech Consultants, Inc. n LA," CMke1,ry Total Hours Time Approved by SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date \1. 1 il0 4.1- sy4,—, .«/ Time 1%4 ?f•l Project Name v\ I Address \ r s p ti v...., �a �.. " .,,\ \. •,r ..\ , Requested by ,,,,..,,_ M 0,r,f,, `15, Met With Notice Left With c"it Sii c.. SWN Soiltech Consultants Report dated '7A4° Dated Plan by I .at i--,,,,-, We have observed - tl ., 1.4,%a , 'sc'r 10 e- F Approved Not Approved See Below General Comments and Conditions of Approval: Ref. u; I i"1� V.1)01r^"1 -i 1� ..tP IN AAC4''0 '.1. to'a�t c„�G"1,t`�"'� ! f� rF1.11^1'erv1a.e X T 4r 1c"8 "C`+✓ rn--y iir'ti r n,.\ /":0 aC' r 1 r \ ' �' C r ` C. %nr\ iF `9r � `� '�L �.\n(> 1T 0,0i...-P r- r:t0v - 4.0 Additional Site Visit \ Required Not equired For SWN Soiltech Consultants, Inc. Total Hours ,,�.. Time Approved by r Requested by Met With Notice Left With SWN SOILTECH. CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date 1i1-i 10Y 1v1„r.,c\G Time )0'co ACi Project Name ,Ak Ref. 4-1 - 07 Address \S"\I1\ } , t`1.'rr'1 5 ' J SWN Soiltech Consultants Report dated Plan by ID r We have observed 41—c ( Actov-, c4v Dated V* Approved Not Approved See Below General Comments and Conditions of Approval: ? j 1 t,- g h(,vt C�xrGvcillino-i , cA V 4?v''it►- �r'� oT` j 1 k ' inr�✓- >y �J eckvo \ G<\e.c. \2IO'205 � 5 t�c�c c� ,.,i�%n,•� ' • Do 4 c11 Y/C 1frv"7� tr'r '.`^� 7r r "%r�� .�" r�,.. r,, • ii Additional Site Visit VRequired For SWN Soiltech Consultants, Inc. _ Not equired Total Hours Time Approved by t SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date i � � l tl � `� " cs-t Time Project Name r t LAel Address \ \ Requested by Met With Notice Left With SWN Soiltech Consultants Report dated Plan by \1� G\ter We have observed ci 1 G 3?,, Approved _ / \ Iv)c"•C Yr � iflc c)rp ^t'nt Wc` . ) -) 11 Lio Not Approved See Below General Comments and Conditions of Approval: ILA k\h( 1.vv6.1.) <,.i \G,c.,,�v�c�� i ✓ � 1 r4, t c yar:e1"Vrr -,;r (-! 1yj Si_\,%C-r\r' c lr re , (. • r.r"c1,ti rr) `C�/ ` • \ Additional Site Visit \ Required For SWN Soiltech Consultants, Inc. f 1.!\111.-, '414 - Dated cit YIrr 6;%c i ' "cl'JY.,c 5 1 Total Hours - Time Approved by SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date 101\ I o Project Name \-:\tc.A., Address ( 401- VOr. dcri Requested by Met With . Notice Left With Time SWN Soiltech Consultants Report dated• Plan by C1)0 \ 1\•".../` Ref. \\ /ItIOL Dated We have observed 0-\'‘e 4-7LAncv e.Ae c.,01\4 ;\?\c _,,, o. 1, -\-- C r) ' ),•57 1.7. c.., e. i ...,.....) c % F (.2 :.;52...A \ cor)" CU CO v-45.1 0 i•-' it \ (k...k ib \'' ex:- r t.,‘,4--1( (0 •••.,, A:‘(,),(1 "7),-. 0 1 le..1‹ j e. V.N4-"V" 1 \ \ Approved Not Approved See Below General Comments and Conditions of Approval: 'O 5c. k.,\,7C.ir (1,ir •••-•• • 1-00; • 07 2. a t.s. e < C\ C 5 251 cs 01- •°55, \ r c 0\ f. 617 \OE- 5w• Te 1‘ 4.1 e;•• t."4 A,- \I fo' r • 0 V"- ,-)„ e _1 „ e- I \ •-115-%( (A 6.4.; c•-\ 4•1 /11,A lot-^ 4.=:•••• • \,7) c • \ C, \ e•-•Pr. Additional Site Visit V Required For SWN Soiltech Consultants, Inc. (4-N 4 or- 0,, r-r2-Th ic 1 \ 1 Total Hours Time Approved by /le f • )st , ' • • :54 SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date 101;.(10 We \r. Project Name Address Requested by Met With Notice Left With . ( c_ t r- N Time CI :0 0 SWN Soiltech Consultants Report dated Plan by C,,N We have observed 7-1,2 t \ 904 c.,c- Approved Not Approved *11 0,-2 0., A \ t' C.- 6 See Below General Comments and Conditions of Approval: 6::\//C.,1 cA e, \r, \foC? " e fr, 4"1 • (-6 9 -1 t v''t (k , „); 4-. 1 P\ ri Ref. 0 Dated D-7 :\t/),/ ,•••••1 \l" Ierlr ). r A.- 17\ c .1 - co . \ s r....4• ' 1." 0.7. •'--1471( v$k-12i2 u 4". t f" Additional Site Visit 2 "Ptc.'r 4.- ..5 - I ‘ ,-.\ 17... e -..:7k....;'...-9-e:;... ‘ ‘...,.. e.> S47, v-. \Y-1PC- k ( ( 01./"--1 • \ \ or ,:z.i. ,-,-, / C... ::... ki• ,4.—.‘ •• 4:7 (Aet.' ,,,'" , rf_ i"—e."' \ Required For SWN Soiltech Consultants, Inc. P Not Required Total Hours Time Approved by t SWN SOILTECH CONSULTANTS, INC. Soul Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date .:10/0(010 Project Name Address (7,,f-s-t. • CZ-0,-(A Requested by c")0, J,t7; Met With Notice Left With (74c- SWN Soiltech Consultants Report dated lo Plan by c11---,3A a „ Dated We have observed 4\/-1/4 4;:\‘'9C7.-st ,ar-‘e S(7),\ 5 \eN, (7.f• 100,e" c-k e \Or Ay Time \ : 5 Ref. Approved Not Approved See Below General Comments and Conditions of Approval: V24.r v--, , 4-- 6,1, .67',: k \ - J ,,,- v CA C' C, W,./1-147, e""), -.1 -, , r., kr c.,. L ,..-1-2. ,..A 5-ty.,. (-1,,,v- ,.. \ \ ‘ -,,,,,,,„ ....., .... - e--,t. \ -, r v' e e-,...,-)0Y e,,,e; Y\-,6---\-e\ . ‘i-e), A ri,,, 4 , \ j Vh" e e..., tne\t; ''''tT,-, I •""1:7 r- e ,•• c W 1 r c. -117, • Additional Site Visit i" Required For SWN Soiltech Consultants, Inc. No Required 467 Total Hours Time Approved by t 9 l'a r^n . e .✓7 \") Y"Al17/1y SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: (818) 282-6838 NOTICE OF FIELD OBSERVATION Date �, I0J,A Time ; (n f1-'� • \'•\ �/'r-r Ref. Project Name `` ` �, Address �_�..vw cr �;� 0 11;�� c t-� '�\ -, Requested by Met With Notice Left With SWN Soiltech Consultants Report dated Plan by i1 . haw rr'ere .1r r"1 ` Dated We have observed -n Approved Not Approved See Below General Comments and Conditions of Approval: qyr .'"" o./ r . r - ..t, M'" c- I f\\\ \A OW 5eA,\ t Pam.! ✓ - ,r \ `Y0 ,s r-1\11 \f`ie Additional Site Visit ✓ Required _ For SWN Soiltech Consultants, Inc. Total Hours Time Approved by 1 "\ i3 '(•. {, kin 0 ),,C c- 1 V.VRya fry' it c`I Iv L 4 e t'' 4- Not Ruired SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Notice of. Field Observation Date: 12/08/08 Monday Time: 9:45 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. • Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Notice of Field Observation Date: 12/02/08 Tuesday Time: 2:00 pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637 / SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Notice of Field Observation Date: 11/24/08 Monday Time: 12:00 pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen V. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Notice of Field Observation Date: 11/17/08 Monday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 11/13/08 Thursday Time: 8:00 am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637 SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 11/11/08 Tuesday Time: 7:30 am, 12:30am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill around basement walls. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: Two tests taken in compacted fill show. 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen/W. Ng, GE 637 / Total Field Technician Hours: 4 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 11/05/08 Wednesday Time: 11:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. Placement of backfill around basement walls. a. The removal of backfill behind wood lagging is approved. b. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. One test taken in compacted fill shows 90%+ relative compaction._ Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen'VV. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 11/04/08 Tuesday Time: 8:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. Placement of backfill around basement walls. a. The removal of backfill behind wood lagging is approved. b. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours • Stephen W. Ng, GE 637 SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 11/03/08 Monday Time: 10:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. Placement of backfill around basement walls. a. The removal of backfill behind wood lagging is approved. b. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 10/30/08 Thursday Time: 11:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. Placement of backfill around basement walls. a. The removal of backfill behind wood lagging is approved. b. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephin W. Ng, GE 637 SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 10/29/08 Wednesday Time: 10:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch. Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. Placement of backfill around basement walls. a. The removal of backfill behind wood lagging is approved. b. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 10/28/08 Tuesday Time: 10:00 am, 1:00pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: a. The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall). b. The bottom of excavation around basement walls. c. Placement of backfill aroundbasement walls. a. The removal of backfill behind wood lagging is approved. b. The bottom of excavated plane is approved. c. The placement of backfill around basement walls is approved. General Comments and Conditions of Approval: a. Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. b. The bottom of excavation was prepared according to our recommendations — adequate for placement of compacted fill. c. One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. / � L - StepheA W. Ng, GE 637 (' Total Field Engineering Hours: 2 Hours Total. Field Technician Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 10/24/08 Friday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Doug Morris Met With: Notice Left With: Doug Morris SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: The removal of backfill behind wood lagging (wood lagging was placed between soldier piles for support of temporary excavation for basement wall) The removal of backfill behind wood lagging is approved. General Comments and Conditions of Approval: Bedrock was exposed behind the wood lagging — adequate for placement of crushed rocks backfill behind basement wall. Additional Site. Visit Required. For SWN Soiltech Consultants, Inc. 7 - Stephin W. Ng, GE 637 1 Total Field Engineering Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Soil Mechanics - Foundation Engineering 3140 West Main Street, Alhambra, California 91801 Tel: ,(818) 282-6838 ) NOTICE OF FIELD OBSERVATION ( Date 1.// /Oft /-",4-n(7),/q/ Time A - Project Name /IC 7-/ Ref. Address / ;'; „ j4C4Z/ /4,"f7,?-- /2 Requested by //,-)476-1 7/2.(7/ei Met With Notice Left With SWN Soiltech Consultants Report dated• Plan by / . (-> /9/./7 "0-,/// icreated We have observed i-/,/7 7,>42/1 ?"-/-2 449 7:/r/....c t • (Ti it? r / 7/5/4":(' ./. .4 / ,//42 ,7-",',5.7,A;17/771 1/41 /!;/J•7,72.: r$ • V/ Approved Not Approved See Below General Comments and Conditions of Approval: /1/9/-77///1 /2 ti / 7 Ze..6457 ITO — /2/VW( • //77) . //,/ /-:.-.7.A."...--1,./.-,••;;f-77-/i)%1 5 7-0 • "47.4V-"7- .4/4 /.'...%67 /7.C.,.1/2-7- 7;1(5/11—E 5.72:%2,//...5; • /./ //:52Z: 77:;1:(2 .7172.2 44e//ki/Z.;' Additional Site Visit For SWN Soiltech Consultants, Inc. Total Hours 9 Time Approved by Required Not Required • ( ( ' SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/26/08 Tuesday Time: 1:00 pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants,. Inc._ Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 08/25/08 Monday Time: 8:00 am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637 % SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/22/08 Friday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephan W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOIL TECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation. Date: 08/20/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephan W. Ng, GE 637 SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/18/08 Monday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen/W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/14/08 Thursday Time: 8:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips. Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637. ) SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/13/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: .1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. / ✓C. Stephen W. Ng, GE 637 ) Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/12/08 Tuesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East; Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. �._.� . Stephen W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/08/08 Friday Time: 10:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Doug Morris Met With: Doug Morris Notice Left With: Doug Morris SWN Soiltech Consultants Report dated: 07/16/06 Plan by: George M. Sweeney, A.I.A. Architect Dated: We have observed: Foundation excavation for proposed basement. The foundation excavation is approved. General Comments and Conditions of Approval: The foundation excavation is a minimum of 18 inches into firm bedrock — adequate for proposed structural support. All loose soils and debris shall be removed prior to pouring. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Engineering Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 08/06/08 Wednesday Time: 8:30 am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is. approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. f ✓ 4.,<- ; 94 , Stephen W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 08/04/08. Monday Time: 8:00 am 12:45 pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: Two tests taken in compacted fill show 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc.. /J_ Stephen W. Ng, GE 637 Total Field Technician Hours: 6 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/31/08 Thursday Time: 8:00 am 1:45pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of backfill for the extension of the existing fill slope below the house pad. The placement of compacted backfill is approved. General Comments and Conditions of Approval: Two tests taken in compacted fill show 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Technician Hours: 6 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/30/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Keyway excavation for the extension of the existing fill slope below the house pad. The keyway excavation is approved. General Comments and Conditions of Approval: The keyway is a minimum of 2 feet into firm natural soils with bedrock exposed at the bottom — adequate for placement of compacted fill. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 ) Total Field Engineering Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140, West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/23/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General'Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. `Y7 , Stephen. W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/22/08 Tuesday Time: 8:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637 ) SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/18/08 Friday Time: 9:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours Stephen W. Ng, GE 637 j SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/17/08 Thursday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. %-L Stephen W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/15/08 Tuesday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ��,,A Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/14/08 Monday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Total Field Technician Hours: 3 Hours . 7 Stephen W. Ng, GE 637 ) SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/11/08 Friday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. % Stephen W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/10/08 Thursday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ./ i'GG'T ( ' `� Stephen W. Ng, GE 637 ) Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/09/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Ronald Hale Dated: 6/20/08 We have observed: 1. Placement of compacted fill for the fill slope below the main house 2. Excavation for soldier piles for shoring in .basement area. The placement of compacted backfill is approved. The excavation for soldier piles is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Excavations for nine soldier piles were made to depths of approximately 25 feet to 27 feet and are at lease 12.5 feet into firm bedrock — adequate for proposed structural support. Additional Site Visit Required. For SWN Soiltech Consultants, Inc: �'�� C� Stephen W. Ng, GE 637 Total Field Engineering Hours: 2 Hours Total Field Technician Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra; California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/08/08 Tuesday Time: 7:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 .. Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ./'7 C__., 9'1 Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382. (Cell) Notice of Field Observation Date: 07/07/08 Monday Time: 9:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants. Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 07/02/08 Wednesday Time: 9:30 am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ... St epheK W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 07/01/08 Tuesday Time: 8:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ,.� c 72 Stephen-W. Ng, GE 637 J Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/30/08 Monday Time: 8:00 am 2:15 pm Project Name:. Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch. Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the fill slope below the main house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: Two tests taken in compacted fill show 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ' Stephen W. Ng, GE 637 ) Total Field Engineering Hours: 6 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/26/08 Thursday Time: 7:30 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: The keyway excavation for the fill slope below the main house. The keyway excavation is approved. General Comments and Conditions of Approval: The keyway was 13 feet wide and up to 3.5 feet deep and at least 2 feet into firm bedrock — adequate for placement of compacted fill. Additional Site Visit Required. For SWN Soiltech Consultants, Inc.. V,, `2'1 Stephen W. Ng, GE 637 Total Field Engineering Hours: 2 Hours . SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/23/08 Monday Time: 9:45 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road. East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the easterly portion of the fill slope below the proposed guest house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637 / Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/19/08 Thursday Time: 8:00 am, 2:30pm Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the easterly portion of the fill slope below the proposed guest house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: Two tests taken in compacted fill show 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. d,4(_) .. `")'2 Stephen W. Ng, GE 637 Total Field Technician Hours: 6 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/18/08 Wednesday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With:. Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the easterly portion of the fill slope below the proposed guest house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. ✓/�� Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Date: Project Name: Address: Requested by: Met With: Notice Left With: Notice of Field Observation 06/17/08 Tuesday Time: 8:30 am Huh Ref. 4708-07 1 Crest Road East, Rolling Hills Dutch Phillips Dutch Phillips Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the easterly portion of the fill slope below the proposed guest house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc.µ_ �--� �!'� , Stephen W. Ng, GE 637 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/16/08 Monday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: Placement of compacted fill for the easterly portion of the fill slope below the proposed guest house. The placement of compacted backfill is approved. General Comments and Conditions of Approval: One test taken in compacted fill shows 90%+ relative compaction. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. Stephen W. Ng, GE 637- 1 Total Field Technician Hours: 3 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 (626) 282-6838 (Office & Fax) (818) 399-3382 (Cell) Notice of Field Observation Date: 06/13/08 Friday Time: 8:00 am Project Name: Huh Ref. 4708-07 Address: 1 Crest Road East, Rolling Hills Requested by: Dutch Phillips Met With: Dutch Phillips Notice Left With: ' Dutch Phillips SWN Soiltech Consultants Report dated: 07/16/06 Plan by: Bolton Engineering Dated: We have observed: The easterly keyway excavation for the fill slope below the proposed guest house. The keyway excavation is approved. General Comments and Conditions of Approval: The keyway was 13 feet wide and up to 6 feet deep and at least 2 feet into firm alluvium — adequate for placement of compacted fill. Additional Site Visit Required. For SWN Soiltech Consultants, Inc. '� �_--� `n Stephen W. Ng, GE 637 ) Total Field Engineering Hours: 2 Hours SWN SOILTECH CONSULTANTS, INC. Geotechnical Engineering 3140 West Main Street, Alhambra, California 91801 Tel. (626) 282-6838 Fax. (626) 270-4142 Email: swnsoiltech@gmail.com Project Ref 4708-07 February 28, 2009 Jihee and Peter Huh #1 Crest Road East Rolling Hills, California 90274 Subject:Rough Grading Compaction Report Proposed Residential Development #1 Crest Road East Rolling Hills, California Dear Mr. and Mrs. Huh: Submitted herewith is a report of observation and tests performed during rough grading for the proposed residential development at the subject site. The accompanying report has been substantiated by soils engineering observation during grading, and field and laboratory tests considered necessary in the circumstances. It is the professional opinion of the undersigned that this report presents fairly the information requested by you. Respectfully submitted, SWN Soiltech Consult Iti Stephen W. Ng GE 637 ROUGH GRADING COMPACTION REPORT PROPOSED RESIDENTIAL DEVELOPMENT #1 CREST ROAD EAST ROLLING HILLS, CALIFORNIA For Jihee and Peter Huh Project Ref. 4708-07 February 28, 2009 TABLE OF CONTENTS PAGE INTRODUCTION . 1 PAST STUDIES 1 SCOPE OF WORK . 1 GRADING PROCEDURES 2 CONCLUSIONS 3 STA 1'EMENT OF COMPLIANCE WITH BUILDING CODE SECTION 1114 RECOMMENDATIONS 5 Preventive Slope Maintenance . 5 Other Recommendations 6 REMARKS 6 TABLE I - SUMMARY OF FIELD DENSITY DETERMINATIONS 7 TABLE II - SUMMARY OF LABORATORY DENSITY DETERMINATIONS. 9 TABLE III - SUMMARY OF EXPANSION INDEX DETERMINATIONS .... 9 ENGINEERED GRADING CONSULTANT STATEMENT PLATE A - PLOT PLAN LOCATION OF COMPACTION TEST (POCKET) SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 INTRODUCTION Page 1 of 9 The rough grading at #1 Crest Road East, Rolling Hills is shown on an As Graded Topographic Survey dated February 24, 2009, prepared by Bolton Engineering Corporation. A copy of the Survey is attached herein as Plate A, "Plot Plan — Location of Compaction Test." The rough grading consisted of creating a level area for the proposed guest house to the east of the existing residence and extending the pad below the main house. Fill slopes of no higher than 12 feet and steeper than 3:1 (Horizontal to Vertical) were made. Cut slopes of no higher than 10 feet and steeper than 2:1 (Horizontal to Vertical) were made. Our soils engineering investigation has been conducted in conjunction with an engineering geologic investigation by Coast Geotechnical, whose reports should be reviewed in conjunction with this report. PAST STUDIES We issued the following reports for the residential development at the subject site: • Report Of Soils Engineering Investigation dated July 16, 2006. • Addendum — Report of Soils Engineering Investigation dated July 20, 2007. • Addendum II — Report of Soils Engineering Investigation dated February 28, 2008. • Addendum III — Report of Soils Engineering Investigation dated June 11, 2008. • In -Progress Compaction Report for June 2008 dated July 9, 2008. • In -Progress Compaction Report for July 2008 dated August 13, 2008. • In -Progress Compaction Report for August 2008 dated September 3, 2008. SCOPE OF WORK Our services during grading of the site included: 1. Observation of keyways at the toe of the fill slope for the proposed guest house pad and at the toe of the fill slope for extension of the existing pad below the main house; 2. Observation of placement of compacted fill; 3. Observation of benching of fill soils into firm natural soils and bedrock; SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 4. Testing of the compacted fill; 5. Laboratory testing of representative samples of the fill soils; 6. Engineering analysis; and 7. Preparation of this report. Page 2 of 9 The approximate locations of the field in -place density tests and the approximate limits of compacted fill, are shown on Plate A, "Plot Plan - Location of Compaction Test." Field in -place density test results are tabulated on Table I, "Summary of Field Density Determinations." The maximum densities and optimum moisture contents of representative samples of the soils used in the compacted fill are shown on Table II, "Summary of Laboratory Density Determinations." The expansion indices of representative samples of the soils used in the compacted fill are shown on Table III, "Summary of Expansion Index Determinations." GRADING PROCEDURES In general, grading and compaction of the fill soils were performed as follows: 1. The area to receive fill soils was first cleared of debris and surface vegetation. 2. A keyway was made at the toe of the fill slope for the proposed guest house pad. It was approximately 13 feet wide,- 4 to 6 below grade, and at least 2 feet into firm natural soils or bedrock, measured from the down -slope side of the keyway. 3. Additional keyways were made at the toe of the fill slope for extension of the existing pad below the main house. The keyways were approximately 13 feet wide, up to 3.5 feet deep, and at least 2 feet into firm natural soils or bedrock, measured from the downslope side of the keyways. 4. The exposed firm natural soils or bedrock was scarified and rolled with a crawler - tractor -mounted shovel prior to placement of compacted fill. SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 Page 3 of 9 5. The new fill was spread, moistened and compacted in lifts of 6 to 8 inches in thickness. Compaction was obtained by means of rolling with the crawler -tractor - mounted shovel. 6. The new fill consisted of a mixture of the excavated on -site soils and bedrock. 7. The fill soils were benched into bedrock as filling progressed up the slope. 8. The specified minimum degree of compaction was 90% of the maximum density as determined by the ASTM D 1557 standard. Maximum density and optimum moisture content of representative samples of the soils used in the compacted fill are shown on Table II, "Summary of Laboratory Density Determinations." 9. In place density tests were performed in accordance with ASTM D 1556. Field in - place density test results are tabulated on Table I, "Summary of Field Density Determinations." 10. Rocks larger than 8 inches in maximum dimension were excluded from the fill. CONCLUSIONS The geologic investigation by Coast Geotechnical has found favorable geologic conditions at the subject site. Gross failure of the bedrock is unlikely under normal circumstances. Stability analyses presented in our July 16 2006 report have shown that the proposed fill slope exhibits factors -of -safety in excess of 1.50 against gross and surficial failure. The potential for gross instability that may affect the proposed development is considered to be low if the site is improved and maintained in accordance with our recommendations. The following should be noted: 1. The existing fill soils, soil/colluvium and alluvium, as well as any weathered bedrock, are subject to local soil movement. These materials should not be used to support any structure. 2. The underlying bedrock is suitable for structural support. The proposed guest house, and retaining walls, as well as additions to the house shall be supported by foundations embedded in bedrock. 3. Any existing foundations to be used to support the proposed additions shall be extended into the bedrock. The type of foundations and the integrity of the existing SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 Page 4 of 9 foundations and their adequacy to be tied to the new foundations should be determined by the Structural Engineer for the project. 4. Due to the depths of the bedrock after the proposed grading, deep foundations may be required in some areas. 5. Samples of the on -site soils exhibit medium potentials for expansion. Soils with high expansion potentials are present in the general vicinity. These materials could swell significantly in the presence of moisture and shrink when dried. Foundations and slabs supported on these soils should be designed for expansive soil conditions. The subgrade soils shall be further tested for expansion potential during construction to determine if revised slab design would be necessary. 6. The fill soils and soil/colluvium, as well as weathered bedrock, have potential for caving in steep cuts. Temporary excavations may need to be supported or trimmed back. Foundation excavations may need to be formed. 7. Slabs supported by the existing fill soils, soil/colluvium, alluvium or weathered bedrock will be subject to movements resulting in distress. Distress to the slabs may be reduced by supporting the slabs on firm bedrock, or compacted fill placed on firm bedrock. Alternatively the slabs may be structurally supported by foundations embedded in firm bedrock. 8. Typically, cracking of reinforced concrete can occur and is a common process. Reinforcement and crack control joints are intended to minimize this risk. In addition, irregularities of new slabs are common. A completed slab is generally not perfectly level and not free of some type of cracking. 9. Any cantilevered retaining wall will deflect and settle. Settlement of the backfill behind the wall is anticipated and should be allowed for in the design and construction of any structure, such as slabs and utilities, placed behind the wall. 10. Soil sloughing on the steep portions of the slopes is anticipated. The amount of soil sloughing may be reduced by proper planting and drainage control. 11. Excavation may be difficult due to the hardness of some of the bedrock. 12. There are certain hazards connected with owning a hillside property in Southern California. Property damage may result from flooding, debris flows, slope erosion, brush fires and earthquakes of major magnitude. SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 Page 5 of 9 STATEMENT OF COMPLIANCE WITH BUILDING CODE SECTION 111 It is our opinion, based upon tests conducted as described in this report, copies of test results being available for review, that the proposed guest house, retaining walls and additions to the existing house, as well as the proposed grading, at the subject site will not be affected by hazards from landslide, settlement, or slippage, and that the proposed development will have no adverse effect on the geologic stability of properties outside of the subject site, provided it is constructed and maintained in accordance with recommendations presented in this report. The nature and extent of tests conducted for purposes of this declaration are, in our opinion, in conformance with generally accepted practice in the area. Test findings and statements of professional opinion do not constitute a guarantee or warranty, expressed or implied. RECOMMENDATIONS Preventive Slope Maintenance We recommend that the homeowner maintain an adequate debris, erosion and fire control program to protect the property. Sloughing and slumping of the surface of any slope may be anticipated if the slope is left unprotected over a period of time, especially during rainy seasons. It should be noted that excessive landscape watering, rodent burrows and uncontrolled surface runoff might cause instability of the slope surface. The following recommendations are provided so as to minimize the potential for erosion of slopes at the subject site. 1. The slopes shall be planted and maintained with a suitable deep-rooted ground cover as soon as possible. Additional protection may be provided by the use of jute mesh or suitable geofabrics. If adequate ground cover is not established before the rainy season, sloughing and slumping of the surficial soils may occur. It is imperative that landscape watering be kept to the minimum required for normal plant growth. 2. Any paved drainage swale and downdrain on the slopes and drain inlet should be kept free of soils and debris. 3. Adequate site drainage shall be provided. All roof and surface drainage shall be conducted away from foundation and slope areas via engineered non -erosive devices to existing stormdrain facilities on the street or down the slopes in a controlled SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 Page 6 of 9 manner. In no case shall water be allowed to pond within the site, drain towards structures or flow in a concentrated and uncontrolled manner down the slopes. Other recommendations Other recommendations pertinent to the design and construction of the project are presented in our referenced Reports and Addenda. REMARKS The fills and materials processing under the purview of this report have been completed under the observation of, and with selective testing by, SWN Soiltech Consultants, Inc. Our findings were made in conformance with generally accepted professional engineering practice, and no further warranty is implied nor made. Fill which is placed beyond the limits shown on the enclosed Plot Plan and test elevations should be compacted in accordance with the approved plans and specifications. Our recommendations on grading are presented in the referenced report and addendum. SWN Soiltech Consultants, Inc. assumes no responsibility for compacted fill or earth materials placed beyond the limits shown on the Plot Plan or indicated by test elevations. This report pertains only to the grading and compaction described herein and is subject to review by the controlling authorities for the project. SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 TABLE I SUMMARY OF FIELD DENSITY DETERMINATIONS (Test Standard ASTM D 1556) Page 7 of 9 In -Place In -Place Moisture Test Dry Content Soil Rel. No. Date Elev.* Density (% Dry Wt.) Type Comp. Remarks 1 6/16/08 68 88.8 pcf 21.7% A 92% 2 6/17/08 70 87.6 pcf 20.5% A 91% 3 6/18/08 72 87.2 pcf 25.5% A 90% 4 6/18/08 74 88.3 pcf 23.9% A 92% 5 6/19/08 76 90.0 pcf 21.7% A 93% 6 6/19/08 77 87.1 pcf 22.6% A 90% Slope** 7 6/23/08 78 87.5 pcf 22.1% A 91% 8 6/30/08 65 84.0 pcf 27.0% B 94% 9 6/30/08 67 87.3 pcf 20.6% A 91% 10 7/01/08 68 91.9 pcf 23.5% A 95% 11 7/02/08 69 82.7 pcf 33.3% B 93% 12 7/07/08 70 89.2 pcf 25.6% A 92% 13 7/08/08 71 80.9 pcf 33.1% B 91% 14 7/09/08 72 83.3 pcf 28.3% B 94% 15 7/10/08 73 89.4 pcf 26.0% A 93% Slope** 16 7/11/08 73.5 89.1 pcf 25.8% A 92% 17 7/14/08 74 87.6 pcf 26.3% A 91% 18 7/15/08 75 80.3 pcf 30.9% B 90% * Elevation from As Graded Topographic Survey dated February 24, 2009, prepared by Bolton Engineering Corporation, in feet. **Test taken within 12" of slope surface. SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 TABLE I (Continued) SUMMARY OF FIELD DENSITY DETERMINATIONS (Test Standard ASTM D 1556) Page 8 of 9 In -Place In -Place Moisture Test Dry Content Soil Rel. No. Date Elev.* Density (% Dry Wt.) Type Comp. Remarks 19 7/17/08 76 82.3 pcf 31.2% B 93% 20 7/18/08 77 85.0 pcf 32.8% B 95% 21 7/22/08 77.5 89.5 pcf 24.3% A 93% 22 7/23/08 77.5 87.5 pcf 25.3% A 91% 23 7/31/08 61 .88.2 pcf 23.5% A 91% 24 7/31/08 62.5 89.5 pcf 22.1% A 93% 25 8/04/08 64 90.2 pcf 25.4% A 94% 26 8/04/08 65.5 80.4 pcf 32.7% B 90% 27 8/06/08 67 88.9 pcf 25.5% A 92% 28 8/12/08 68.5 83.4 pcf 28.4% B 94% 29 8/13/08 70 90.0 pcf 21.9% A 93% 30 8/14/08 71 80.9 pcf 27.9% B 91% Slope** 31 8/18/08 71.5 87.7 pcf 20.2% A 91% 32 8/20/08 73 80.3 pcf 29.0% B 90% 33 8/22/08 74.5 81.6 pcf 27.2% B 92% 34 8/25/08 76 84.0 pcf 29.5% C 93% 35 8/26/08 77 82.2 pcf 29.1% C 91% 36 8/28/08 77.5 84.7 pcf 28.3% C 94% * Elevation from As Graded Topographic Survey dated February 24, 2009, prepared by Bolton Engineering Corporation, in feet. **Test taken within 12" of slope surface. SWN Soiltech Consultants, Inc. Project Ref. 4708-07 February 28, 2009 Page 9 of 9 TABLE II SUMMARY OF LABORATORY DENSITY DETERMINATIONS (Test Standard ASTM D 1557) Optimum Soil Maximum Moisture Content Type Dry Density (% Dry Wt) A — Clay, silty, bedrock fragments 96.5 pcf 23.0% B — Silt, clayey, bedrock fragments 89.0 pcf 30.0% C — Clay, silty, bedrock fragments (Import) 90.0 pcf 30.0% TABLE III SUMMARY OF EXPANSION INDEX DETERMINATIONS (UBC Standard No. 18-1) Soil Expansion Potential Type Index Expansion A — Clay, silty, bedrock fragments 74 Medium B — Silt, clayey, bedrock fragments 67 Medium C — Clay, silty, bedrock fragments (Import) 82 Medium PUSUC WORKS County of Los Angeles. Department of P.ubtic'Works Building and Safety Division • ENGINEERED GRADING CONSULTANT STATEMENT (Submit to the local Office of Building and Safety prior to Rough and Final Inspection) Job Address #1 Crest Road East or Tract No.:• • Locality: Rolling Hills Owner.. Thee and Peter Huh Contractor. • ROUGH GRADING • •. COMPLETION OF WORK- SECTION 3318: •LOS ANGELES COUNTY.BUiLDING CODE, ❑ CIVIL ENGINEER Based upon field observations, rough grading of` the Tots listed below has been 'completed in conformance with Sections 3317 and 3318 of the Los Angeles Co.unty Building Code, The work Includes, but is not limited to, the following: grading to approximate finat elevations; staking of property lines; location and gradientof cut and fill slopes; construction of required drainage devices. Building pads are free from flood hazard in conformance with Section 110 of the Los Angeles County Building Code. Latest approved plan revision dated: Lot Ne;(s): Other Areas: Permit No.: Remarks: Engineer: Reg. No.: Date: (Signature) :j ® Soils, Engineer Based upon•tests and observations; the, earth fills•placed On. the following lots were.instafe.d upon properly prepared base matertat.and •compacted in compliance with requirements of Sections 3317 :and 3318 of the Los Angeles County Building Code. Fill slope surfaces have been compacted and • buttress—fifs or similar stabilization measures have been installed in ,accordance with, my recommendations as .approved by the Building Official.. Sub -drains have been provided where • required, and locations of said sub -drains are shown on as -graded plans and/or rough• grade reports dated 2/28/09' • • See report dated 2/28/09 • for compaction test data and procedure, recommended allowable soil bearing values, and other special:recommendations. • • Lot No.(s):. • EXPANSIVE SOiLS . (YES) • M( LOT No.(s): • BUTTRESS FILLS R). • ' (NO)• LOT No.(s): `REINFORCED EARTH WALLS . kVA. (NO) LOT'No.(s): RESTRICTED USE AREAS ! (NO) LOT No:(s):. /'ROFESSi0Ngl Ai,, 11 be supported. by Foundations Embedded in Bedrock Remarks: Engineer Reg. No.: GE 637 Date: 2/28/09 • • • • • 3 RAIL FENCE N 7 e?e)c21,0N-0 )4, 50' FRONTYARD SETBA 13 \ \ \ N N. 78.04 FL v77.97' FL Approximate Limits of Compacted f Approximate Depth of Compacted, Approximate Location and .1() . of Compaction 'Test N A awana LINE 94.87' N 3 RAIL N -,PROPOSED BEDROOM ADDITION 94.66' PLTR ROCK \WALL EXIST. AC DRIVEWAY EXIST. RR TIES GRASS AREA PLTR .28 .31 BENCH MARK 94.66' 94.79. 10" TREE EXISTING 1 STORY RESIDENCE 95.00 F.F. STINE STAIRS .29 .35 PLTR .33 .16 .36 .11 74) BASEMENT FAMILY 90.00y.G. PEN SLOT CUT .14 Woromasoaanonaw C._ AS A RAIL FENCE / tpsf 1061:\ FL TR EE — / 165- -1 :4)/ 111:71-1: 114:: / / WALL :411— ise 41/ mot 1-4 N N • 4 .--- 4,A7:: --777 / / / / / " / / / / /40/A .34 .13 .12 .22 z .- "7 /P- / / 8g,' z/ 7,/ / 7 .3 filiateites 7/7 j!;\ Plot Plan — Location of Com SNATN Soiltech Consultants, inc. tion Li • • CD 1010100.000 0 o o o Dote: Feb. 24, 2009 011000.01.0 Sheet Of Sheets