Loading...
HomeMy WebLinkAboutTract Map 3883 Lot 522 Geotechnical Rpt & Compaction Test Results I ~ ".' ... . ..../ I- .-;, -; _ .......':~c .:;l.iill.',~..~GEN Coq~oration . Soil Engineering and Consulting Services-Engineering Geology. Co mpaclionTesting -lnspections.ConstrlJClionMalerialsTesting . Laboratory Testing . Percolation Testing . Geology. Water Resource Studies . Phase I & II Environmental Site Assessments . ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NEIWORK I I I GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS ROUGH GRADING OPERATIONS Beazley Residence Assessor's Parcel Number: 919-302-005 Lot 522 otTract 3883 Avenida Buena Suerte City of Temecula, County of Riverside, California Project Number: T2182-C I I February 28, 2001 I I I I . I I 1 Prepared for: . Mr. Robert W. Beazley . '.. 42961 EI Domino Place l:emecula, California 92592 , / /1</ j-/ - . '\ / , ,.. , I, , ........~". !?E.~' - .. " " ,,~/" ~,,'- /" ~ / " ~ / " /, " " I _" L, / .... ~, I _.... 'I.... ,.- / " _ .' \ - - - \ / 1...- \ _ _ _ \.... I" \ __ / I __ ,_ ~.. \ '- ~ I \. _ _ _ \...."" I __ ,_ _ _ \...- '- " , , \ - _ _ \.,. '- , I - ,,- ...:' -/ /, - "- " -/ - _" - ,," ---'._~ /, ~ ,;_,:_=-1_,-_;:" " __ I ~"/ \_- I ~ , \ / '-- I ' '._- : / --;;o...L~-~ '- ,_.......! -.)...---- J-~~J...2_/ ' J :..J-!-~lr' ~_:...._--;~ .2......:...:" ,1/ I ~~. ~:; COR ATE_O.fEICL'!1607 E terprise CircleN rt "Suite_LTemacula; CA'92590"phone:(909) 296;2230. fax:J909) 296-2237 '~~_.'~ __~_~ _ '-:::~ ,-"-.,." -'~-"'-C:' ORANGE COUNTY 0 n61S"Orange A e1. ue, Santa Ana, CA 92707' phone: (714) 546-4051' fax: 17141546,4052 B SITE: www.en e corp:com- E-MAIL: engencbrp@emgentorp.com . ' _ -, r,'O--""?"-<'~~;'T""':~~W-';O.i:':;;';';.,,......._."-C<,.....:-.,c . 1 . I . . I I I 1 . I I I I I I I I Mr, Robert W. Beazley Project Number: T2182-C TABLE OF CONTENTS SECTION NUMBER AND TITLE 1.0 1.1 1.2 1.3 2.0 2,1 2.2 2.3 3.0 3.1 3.2 4.0 5.0 5.1 6.0 PAGE SITE/PROJECT DESCRIPTION AND LOCATION......................................................................1 PROJECT LOCATION ................... .......... .....,.......................1 ..................... .....................1 ................. ..........................2 SITE DESCRIPTION ......................................... PROJECT DESCRIPTION ............................ SCOPE OF WORK .......................................... ..... ........... ........ .................... ... .......... .... ... ....2 TIME OF GRADING.............................................................................................................2 CONTRACTOR AND EQUIPMENT..........................................................................................2 GRADING OPERATIONS........................................................................................... ..........2 TESTING ....... .... ...... ...... ................................................................ ... ......... ... .....................3 FIELD TESTING PROCEDURES............................................................................................3 LABORATORY TESTING...................................................................................................... 3 3.2.1 MOISTURE-DENSITY RELATIONSHIP TEST....................................................3 3.2.2 EXPANSION INDEX TEST .............................................................................3 3.2.3 SOLUBLE SULFATE TEST ............................................................................3 EARTH MATERIALS ............................................ ........... ........ .............................. ..............4 CONCLUSIONS AND RECOMMENDATIONS ........................ ........ ........................ ... .................4 GENERAL .....................................................................................................,...,..............4 CLOSURE .. ... .... ... ... ...................................... ..................... ... ........ ... ...... ... ... ... .......... .... ....4 ApPENDIX TEST RESULTS DRAWINGS EnGEN Corporation I 1 . 1 . . I . 1 I I . . I I I F /f" cl' '::1, u~;c: "~I ':,.... - ./' .w~GEN Coq~oration -Soil EngineeringandConsultin1l5ervices-EnllineeringGeology-C ompactionTesting elnspeclions-ConstructionMaterialsTesling -LaboraloryTesling. Percolation Testinll . Geology.WalsrResourceSludies . Phase I & II Environmental Site Assessments ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NEIWORK February 28, 2001 Mr. Robert W. Beazley 42961 EI Domino Place Temecula, California 92592 (909) 676-3256 Regarding: GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS ROUGH GRADING OPERATIONS Beazley Residence Assessor's Parcel Number: 919-302-005 Lot 522 atTract 3883 Avenida Buena Suerte City of Temecula, County of Riverside, California Project Number: T2182-C References: 1. EnGEN Corporation, Limited Geotechnical Study, Proposed Single Family Residence, Lot 522, Tract 3883, City of Temecula, County of Riverside, California, Project Number: T2182-LGS, report dated October 2,2000. Gunvant Thakkar, Grading Plan Lot 522 of Tract 3883, APN 919-302-005, plans dated August 9, 1999, 2, Dear Mr. Beazley: According to your request and signed authorization, EnGEN Corporation has performed field observations, sampling, and in-place density testing at the above referenced site, Submitted, herein, are the test results and the supporting field and laboratory data. 1.0 SITEIPROJECT DESCRIPTION AND LOCATION 1.1 PROJECT LOCATION The subject site consists of approximately .5 acres, located north of the intersection of Del Rey Road and Avenida Buena Suerte, in the City of Temecula, County of Riverside, California, 1.2 SITE DESCRIPTION Prior to grading operations, topography and surface conditions of the site were sloping with surface dr~ina~to the northeast at a gradient of less than 10 percent. gently . /.... I" , / '- I "- '" "- I ~ / / , , F _ ' / ,,-! '/ " " / _" _ " "I _" _ __ \. - - - \ / I / ,_ _ _ \..- \. _ _.. \ I __ \ _ _ _ \ '- / / _ \ ..- " ' ,_ _ _ \ __ ... , " - _ _ \..-.... - I \ "\~_-I " - \ ~ \~_-: ,- ":: ~ ~/ \~_-; ': ~ \ r~ \~--i ~_~_~~-'!-!"~-:;'~~' _:,.~) ::..).~--~~. _. ..' '.-=:_- ,;-,.~_:'~-,~.-=-' "- I I' I ~ I, \ ~: \ I ~ I ___~v,.;:_J_ :.....4-... \. ___' _ I: ~....__..i__ \ ..1 -,~'---1r _ t _:1 !l " !: . COR ATIi.QmcE4j'e07 E terprise circie"N rt .S.~lteJ--Teinecula; CA'92590. phone:(~09) 29(J:2230. fax: (909) 296-2237 ~~ 'ORANGE COUNTY'O' I b615' O;;~ge A~e u';,Sa~t~Ana, CA 92707.phone: (714) 546-4051 . fax: (714) 546,4052, B SITE: www~en e corp.com . E-MAIL: engencorp@engencorjJ.com . . . _,~,~",~'i.~:;~~~~'i"~'c~1;,,.'''''-"--':''';-CW' --_.----~.~-._---,.. z.. I 1 1 I 1 1 I . 1 I . I . . I 1 I I . Mr. Robert w. Beazley Project Number: T2182-C February 2001 Page 2 1.3 PROJECT DESCRIPTION It is understood that the subject site is to be developed with a single family residence as well as a separate garage structure with slab-an-grade concrete floors supported on conventional continuous and pier footings with associated driveway and landscaping areas. 2.0 SCOPE OF WORK 2.1 TIME OF GRADING This report represents geotechnical observations and testing during the construction operations from February 5, 2001 to February 22, 2001. 2.2 CONTRACTOR AND EQUIPMENT The grading operations were performed by PDQ Equipment through the use of one (1) CAT 623 scraper, one (1) D4 dozer, and one (1) water truck. 2.3 GRADING OPERATIONS Grading within the subject site consisted of a cutlfill operation, Grasses and weeds were removed prior to fill placement Fill material was generated from the rear cut portions of the site, and used to bring the fill slope and building pad portions of the site to finish grade elevation. Removal of alluvium, slopewash, etc., was performed to a depth of 3-feet below original elevation. Bottoms were observed, probed and found to be into competent bedrock by a representative of this firm. Keying and benching through the existing undocumented fill and into competent bedrock was observed during the grading operations. Over- excavation was performed in the cut portion of the building pads to a depth of 3 to 4-feet below finish grade elevation and to a distance of 5 to 10-feet outside the proposed structure. The exposed bottoms were scarified and moisture conditioned to a depth of 12- inches then compacted to 90 percent. Fill was placed in lens thicknesses of 6 to 8-inches, thoroughly moisture conditioned to near optimum moisture content, then compacted to a minimum of 90 percent relative compaction. Moisture conditioning of the on-site soils was performed during the compaction process, through the use of a water truck. The pad areas were generally graded to the elevations noted on the Grading Plan. However, the actual pad locations, dimensions, elevations, slope locations and inclinations, etc. were surveyed and staked by others and should be verified by the Project Civil Engineer. EnGEN Corporation 3 I 1 . 1 I . . . 1 1 . . . I 1 . 1 I 1 Mr. Robert W. Beazley Project Number: T2182-C Februaf'J 2001 Page 3 3.0 TESTING 3.1 FIELD TESTING PROCEDURES Field in-place density and moisture content testing were performed in general accordance with ASTM-D-2922-81 (90) and ASTM-D-3017-88 procedures for determining in-place density and moisture content, respectively, using nuclear gauge equipment. Relative compaction test results were within the 90 percent required for all material tested, which is an indication that the remainder of the fill placed has been properly compacted. Test results are presented in the Appendix of this report. Fill depths and test locations (by station numbers when applicable) were determined from review of the referenced grading plans. 3.2 LABORATORY TESTING The following laboratory tests were performed as part of our services during the grading of the subject site. The test results are presented in the Appendix of this report. 3.2,1 Moisture-Density Relationship Test Maximum dry density - optimum moisture content relationship tests were conducted on samples of the materials used as fill. The tests were performed in general accordance with ASTM D1557-91 procedures. The test results are presented in the Appendix (Summary of Optimum Moisture Content I Maximum Dry Density Relationship Test Results). 3,2,2 Expansion Index Test A soil sample was obtained for expansion potential testing from the building pad area upon completion of rough grading of the subject site. The expansion test procedure utilized was the Uniform Building Code Test Designation 18-2, The material tested consisted of brown silty sand with percentages of clay, which has an Expansion Index of 11. This soil is classified as having a very low expansion potential. The results are presented in the Appendix (Summary of Expansion Index Test Results), 3.2.3 Soluble Sulfate Test Soil samples were obtained for soluble sulfate testing from the building pad areas upon completion of grading of the subject site, The concentration of soluble sulfate was determined in general accordance with California Test Method 417 procedures. The test results indicate a low percentage of water soluble sulfates (0.0022% by weight), as a result no sulfate resistant concretes are necessary, The test results are presented in the Appendix (Summary of Soluble Sulfate Test Results). EnGEN Corporation ~ I I I I 1 1 I I I I 1 I I I I I I I I Mr, Robert W, Beazley Project Number: T2182-C February 2001 Page 4 4.0 EARTH MATERIALS The natural earth materials encountered on-site generally consisted of brown silty coarse sands with percentages of clay, 5.0 CONCLUSIONS AND RECOMMENDATIONS No conditions were encountered which would cause a change in the previously provided design and construction recommendations. As a result, design and construction should adhere to the recommendations provided in the Referenced No. 1 Limited Geotechnical Study. 5.1 GENERAL Based on the observations and tests performed during grading, the subject site, in the areas noted as test locations, has been completed in accordance with the Referenced No, 1 report, the project plans and the Grading Code of the City of Temecula. The graded site, in the areas noted as graded, is determined to be adequate for the support of a typical residential development. Any subsequent grading for development of the subject property should be performed under engineering observation and testing performed by EnGEN Corporation. Subsequent grading includes, but is not limited to, any additional fill placement and excavation of temporary and permanent cut and fill slopes. In addition, EnGEN Corporation should observe all foundation excavations. Observations should be made prior to installation of concrete forms and/or reinforcing steel so as to verify and/or modify, if necessary, the conclusions and recommendations in this report. Observations of overexcavation cuts, fill placement, finish grading, utility or other trench backfill, pavement subgrade and base course, retaining wall backfill, slab presaturation, or other earth work completed for the development of subject site should be performed by EnGEN Corporation. If any of the observations and testing to verify site geotechnical conditions are not performed by EnGEN Corporation, liability for the safety and performance of the development is limited to the actual portions of the project observed and/or tested by EnGEN Corporation. 6.0 CLOSURE This report has been prepared for use by the parties or project named or described above. It mayor may not contain sufficient information for other parties or purposes. The findings and recommendations expressed in this report are based on field and laboratory testing performed during the rough grading operation and on generally accepted engineering EnGEN Corporation :::; I 1 I I I I I I I I I I I I I I 1 1 I Mr. Robert W. Beazley Project Number: T2182-C February 2001 Page 5 practices and principles, No further warranties are implied or expressed beyond the direct representations of this report. Thank you for the opportunity to provide these services. If you should have any questions regarding this report, please do not hesitate to contact this office at your convenience, Respectfully submitted, Z~~ Supervising Technician SRW/OB:rr Distribution: (4) Addressee FILE: EnGEN/ReportingfT2182-C RobertW. Beazley, Rough Grading ~;,,, E162 Prin . al G technical Engineer Expires 09-30-01 EnGEN Corporation '- I I I I I I I I I I I I I I I I 1 I I Mr, Robert Beazley Project Number: T2182-C Appendix Page 1 APPENDIX: TEST RESULTS EnGEN Corporation 1 I I Mr. Robert Beazley Project Number: T2182-C Appendix Page 2 FIELD TEST RESULTS (Summary of Field In-Place Density Test Results) (Nuclear Gauge Test Method) I (S. G.) = Subgrade / (F, G.) = Finish Grade Test Depth Soil Max Moisture Dry Relative Required I Test Date Test Locations Elevation Type Density Content Density Compaction Compaction No. (2000) (FT) (PCF) (%) (PCF) (%) (%) I 1 02-05 NE Keyway 1233 A1 129,6 11.4 122.7 94,7% 90.0% 2 02-06 NE Keyway 1235 A1 129.6 10.2 116.6 90,0% 90.0% 3 02-06 House Pad NE Fill Slope 1237 A1 129,6 9.8 118.7 91.6% 90.0% I A 02-06 House Pad Bottom of Transition 1228.5 A1 129,6 7.9 110.4 85.2% NA 4 02-06 House Pad NE Fill Slope 1239 A1 129,6 12.2 116.6 90.0% 90,0% I 5 02-06 House Pad NE Fill Slope 1240 A1 129.6 11.1 118.6 91.5% 90.0% B 02-08 House Pad Bottom of Transition 1238.5 A1 129,6 9.4 110.4 85.2% NA C 02-12 Bottom of Garage Keyway 1235 A1 129.6 7.9 110.4 85.2% NA I 6 02-16 Garage Keyway 1237 A1 129.6 12.2 113.3 87.4% 90.0% 7 02-16 Retest of #6 1237 A1 129.6 11.4 116.8 90.1% 90.0% I 8 02-16 Garage Pad 1239 A1 129.6 12.0 117.6 90.7% 90.0% 9 02-19 Garage Pad 1241 A1 129.6 10.2 119.0 91,8% 90.0% 10 02-19 House Pad Transition Area 1240 A1 129.6 9.1 116.6 90,0% 90.0% I 11 02-19 House Pad 1241 A1 129.6 9.4 116.7 90,0% 90.0% 12 02-19 Garage Pad 1241 A1 129.6 11.1 127.2 98.1% 90.0% I 13 02-22 House Pad Transition Area 1241,5 A1 129.6 12.9 119.2 92.0% 90,0% I I I I I I I I EnGEN Corporation 8 I 1 I I I I I I I I I I I I I 1 I I I Mr. Robert Beazley Project Number: T2182-C Appendix Page 3 SUMMARY OF OPTIMUM MOISTURE CONTENT MAXIMUM DRY DENSITY RELATIONSHIP TEST RESULTS ASTM 01557-91 Maximum Optimum Soil Description (USCS Symbol) Soil Type Dry Density Moisture (PC F) Content (%) Silty Coarse Sand with Clay, Brown (SM) A1 129.6 8.4 SUMMARY OF EXPANSION INDEX TEST RESULTS UBC 18-2 Dry Moisture Moisture Soil Condition Condition Expansion Depth (FT) Density Type Before Test After Test Index (pcf) 1%1 1%1 E-1 -1 120.6 8.8% 14.0% 11 SUMMARY OF SOLUBLE SULFATE TEST RESULTS Soil Location % By Weight Type E-1 Building Pad Area 0.0022 EnGEN Corporation <<=t I I I I I I I I I I I I I I I I I I I Mr. Robert Beazley Project Number: T2182-C Appendix Page 4 APPENDIX: DRAWINGS EnGEN Corporation \(:)