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HomeMy WebLinkAboutParcel 1 Geotechnical & Compaction Oct.27,1998' ' ' ~ t ~ ' ' ' ~ ' 1 ' ' ' , ~ "~ October 27, 1998 Mr. James Franklin Westside 178 LP c/o Har-Bro Construction and Consulting, Inc. 2750 Signal Parkway Signal Hill, California 90806 (562) 528-8000 / FAX (562) 528-8050 ~ ~~ • Soil Enginee~ing and Conwl~ing Services • Engineering Geology • CompactionTesting }~O y~ ' Inspections • Construdion Maleiials Tesling • laW2iory ieslinA • Pe~~~alion Tesllrp l. 11 • Geology • Waler Aesoume SWOies • Phase I 8 II Envimnmen~l Sile Assessmenls ENVIRONMENTAL Sl GEOTECHNICAL ENGINEERING NETWORK Regarding: GEOTECHNICAL REPORT AND COMPACTION RESULTS PRECISE AND POST GRADING OPERATIONS Proposed Westside 178 Site Parcel 1 of Parcel Map 24085 City of Temecula, County of Riverside, California Project Number: T1352-C References: 1. EnGEN Corporation, Updated Geotechnical Study, Proposed Structure, Parcel 1 of Parcel Map 24085, City of Temecula, County of Riverside, California, Project Number: T1352-UGS, report dated March 27, 1998. 2. HLC Civil Engineering, Preliminary Grading Plan, Westside 178 Parcel 1 of Parcel Map 24085, plans undated. 3. EnGEN Corporation, Geotechnical Report of Rough Grading, Lots 1- 10 of Parcel Map 24085, Diaz Road, City of Temecula, County of Riverside, California, Project Number: T1075-C, report dated November21, 1996. 4. EnGEN Corporation, Updated Geotechnical/Geological Engineering Study, Proposed Expansion of Existing Business Center, Parcels 1 through 10 of Parcel Map 24085, Diaz Road, City of Temecula, County of Riverside, California, Project Number: T1075-GS, report dated August 19, 1996. Dear Mr. Franklin: ~ ~~Acco~ding to your request~nd__signed authorization, EnGEN Co~i~porafion-.has performed ,field obse'rvations, sampling;_and in-place density testing on an "on-call° \ ~ _ basis~at-the_above referenced site from May 22; 1998 through_September 2, 1998,__ __ __ _`°_` - -- - - -- - ---- - ~ ~- ~_ ~ ~- , ~ ~ ' - '- - = ~ .- - --- , , --- ~ -., : -_ ~-,-., -- ,-, .,. -- ~, „, , , . . . _ . „ - ~ - - - -~ ~ , ~ , ~ ~ , , ~~ ~ ~ ~~ ,~ ~ ' , , ~ ~ ~ ~.. :~ ~ ~ ------° u ~if~ ii ' - :. .~ ~ ~.., ;r; ~ . . ,~. ,,. , , . „ : .~ ,~ ^ ~ - . ~_ i GQR~,AF~:(9EEtCEA.:1__ E terpqs~cle-N~ rt,_Swta1 ~'eme'cula, CA 92590 phona_7gp9) 6].63095-~ fax:_{9.091 678-3294'~""`-`=-- -~-~RANGE COUNTY ~ I E 2615 Orange A e ue, Santa Ana, CA 92707 • phone: pt4) 546-4051 • fax: p14) 546-4052 , ' ni~~~~~ ij7~ F; 1(1j1I~(~I~~It ~~r;~~~'.. EB S17E[~,WWW: N ENCORP:COM!~•'E°MAIC: ENGENCORB~a PE,NET ' -", ~ ~--~v~~ , Westside 178 LP Project No: Tt352-C , October 1998 Page 2 ' The following testing was performed during precise and post grading operations: 'v ~ v 1'. Building Pad Precise Grading. ' 2. On-Site Sewerline Trench Backfill. 3. On-Site Waterline Trench Backfill. ' 4. On-Site Dry Utility Trench Backfill. 5. Fire Suppression Line Trench Backfill. ' 6. Off-Site Sidewalk Subgrade. ' 7. Parking Lot and Driveway Subgrade. 8. Driveway Approach Subgrade. , B ~ t A 9. ase. ggrega e Parking Lot and Driveway ' 10. On-Site Curb and Gutter Subgrade. Maximum dry density/optimum moisture content tests were conducted on samples of ' the native and import earth materials and imported aggregate base. The tests were ' performed in general accordance with ASTM D1557-78 procedures. The results are presented in the Appendix of this report. Relative compaction testing was performed in ' general accordance with ASTM D2992-81 and D3017 procedures for determining in- ' place density and moisture content, respectively, using nuclear density gauge equipment. Test results are presented in the Appendix and the approximate test ' locations are shown on the site plan, also presented in the Appendix of this report. ' In-place density test results indicate a minimum of 90 percent relative compaction in the ' fill placed in the building pad, for subgrade in parking lot and trench backfill areas of the ' site, and 95 percent relative compaction in footing overexcavation areas in the northern and eastern portions of the building pad, and the aggregate base. The native soils ' EnGEN Corpontion Z Westside 178 LP Project No: T1352-C Odober 1998 Page 3 encountered on the site consisted of silty fine sand. import earth materials consisted of silty sand and aggregate base. Based on the observations and tests performed in the areas noted as test locations, the post grading operation has been completed in accordance with the referenced Updated Geotechnical Study and the grading code of the City of Temecula, California. 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, EnGEN Corporation C~~~t LC/~ Jason D. Gar~ Field Operations Manager JDG/OB:ch Distribution: (4) Addressee FILE: EnGENIReporting/ClT1352C Westside 178 LP, Post Grading 'Brate~ GE 162 ~ I Geotechnical Engineer 09-30-01 ~d_ ~ ~ ~~~ m ~ N0.18d ? * \1c ri P~ .~~ C EnGEN Corporation 3 ' Westside 178 LP Projed No: T1352-C ' Appendix Page 1 FIELD TEST RESU~TS (SUMMARY OF FIELD IN-PLACE DENSITY TEST RESULTS) , (NUCLEAR GAUGE TEST METHOD~ Test No. Date ~1995~ Test Locations De th Elev. ~~ Soi~ TYPe Max Density (pCF) Moisture Content (%) Dry Density (PCF) RelaGve Compaction (%) Required Compaction (%) Buildinq Pad 1 5-22 N. Portion of Pad -3.0 2 118.6 12.9 111.2 93.8 90 ' 2 5_22 N.E. Portion of Pad -3.0 2 118.6 13.5 106.8 90.0 90 90 3 5-27 N. Mid. Portion of Pad -2.0 2 118.6 14.4 108.3 91.3 4 5-27 N.W. Portion of Pad -1.0 2 118.6 14.2 108.4 91.4 90 ' 5 5-27 Mid. E. Portion of Pad -1.5 2 118.6 13.7 107.8 90.9 90 6 5-27 Middie Portion of Pad -1.0 2 118.6 14.5 109.4 92.2 90 ' ~ 5_27 Mid. W. Portion of Pad P.S.G 2 118.6 14.9 106.9 90.1 90 90 g 5_27 S.E. Portion of Pad -0.5 2 118.6 15.0 107.1 90.3 g 5_27 S.E. Portion of Pad -0.5 2 118.6 14.6 104.3 87.9 90 ' 10 5-27 S. Mid. Portion of Pad -0.5 2 118.6 14.3 102.2 86.1 90 11 5-27 Retest of #10 -0.5 2 118.6 11.8 106.8 90.0 90 ' 12 5-27 . S. Mid. Portion of Pad -0.5 2 118.6 13.8 107.4 90.5 90 13 5-27 S.E. Portion of Pad -2.0 2 118.6 16.4 108.6 91.5 95 14 5-27 S.E. Portion of Pad -2.0 2 118.6 12.2 114.7 96.7 95 , 15 5-27 Mid. E. Portion of Pad -3.0 2 118.6 9.6 115.6 97.5 95 16 5-27 N.E. Portion of Pad -5.0 2 118.6 11.9 110.6 93.2 95 17 5-27 Retest of #9 -0.5 2 118.6 13.2 106.7 90.0 90 ' 18 5-28 Retest of #13 -2.0 2 118.6 11.4 113.6 95.8 95 19 5-28 Retest of #16 -5.0 2 118.6 17.2 108.2 912 95 ' 20 5-29 Retest of #16 & 19 -5.0 1 123.4 12.3 117.8 95.5 95 2~ 5_pg Mid. N. of Footing Cut Out _3.0 2 118.6 13.2 113.7 95.8 95 22 5_29 Mid. of Footing Cut Out _~ ,5 2 118.6 12.9 113.4 95.6 95 , 23 5-29 S. of Footing Cut out -1.0 2 118.6 11.8 112.8 95.1 95 24 5-29 N. Footing Cut Out -1.0 2 118.6 12.0 108.8 91.8 95 ' 25 5-29 Retest of #24 -1.0 2 118.6 12.0 112.7 95.1 95 90 26 5-30 N.W. Building Pad P.S.G 2 118.6 12.9 111.5 94.0 27 5-30 N. Mid. Buiiding Pad P.S.G 2 118.6 12.3 114.6 96.6 90 ' 28 5-30 S.W. Building Pad P.S.G 2 118.6 10.8 110.5 93.2 90 29 5-30 S. Mid. Building Pad P.S.G 2 118.6 9.6 110.5 93.1 90 ' 30 5-30 W~ Mid. Building Pad P.S.G 2 118.6 10.4 107.5 90.7 90 31 5-30 S.E. Building Pad P.S.G 2 118.6 13.4 112.9 95.2 90 ' (F.G.) Indicates Finish Grade (*) S and Cone Test Method EnGEN Corporacion , ~ ' Westside 178 LP Project No: T1352-C ' Appendix Page 2 FIELD TEST RESULTS (CONTINUOUS) ' (SUMMARY OF FIELD IN-PLACE DENSfTY TEST RESULTS) (NUCLEAR GAUGE TEST METHOD~ Test Test Depth Soil Max Moisture Dry Rela6ve Required Date Elev. Density Content Density Compac6on Compaction . No. ~1998~ TestLocations ~~ Type ~PCF) (%) (PCF) (%) (%) 32 5-30 E. Mid. Building Pad P.S.G 2 118.6 10.6 110.5 93.1 90 , 33 5-30 Mid. N. Building Pad P.S.G 2 118.6 12.5 112.5 94.9 90 34 5-30 N.E. Building Pad P.S.G 2 118.6 11.1 113.1 95.4 90 ' 1 6-6 Sewerline W. Sewer -1.0 2 118.6 15.4 109.2 92.1 90 2 6-6 W. Sewer -1.0 2 118.6 14.3 108.4 91.4 90 ' 3 6-6 W. Sewer S.G. 2 118.6 15.0 107.8 90.9 90 4 6-6 N. Sewer -2.0 2 118.6 14.0 107.5 90.6 90 5 6-6 N. Sewer S.G. 2 118.6 13.8 108.2 91.2 90 ' 6 6-6 N. Sewer -3.0 2 118.6 15.1 107.3 90.5 90 7 g_g E. Sewer ~.0 1 123.4 7.5 112.0 90.7 90 ' g g_g E. Sewer -4.0 1 123.4 8.4 116.7 94.6 90 9 6-8 E. Sewer -2.0 1 123.4 8.3 113.4 91.9 90 10 6-8 S. Sewer -6.0 4 125.9 12.6 113.8 90.4 90 ' 11 6-8 S. Sewer -4.0 4 125.9 11.9 116.7 92.7 90 12 6-8 S. Sewer -6.0 3 118.9 9.9 109.7 92.2 90 13 6-8 S. Sewer -2.0 4 125.9 12.1 115.8 92.0 90 ' 14 6-8 S. Sewer -4.0 3 118.9 10.7 110.9 93.2 90 15 6-8 S. Sewer S.G. 4 125.9 10.1 113.5 90.2 90 ' 15 6-8 S. Sewer S.G. 4 125.9 10.1 113.5 902 90 16 6-9 S. Sewer -2.0 3 118.9 10.6 109.1 91.8 90 17 6-9 s. Sewer S.G. 3 118.9 12.5 108.6 91.3 90 1 18 6-9 e. Sewer S.G. 1 123.4 7.6 111.5 90.4 90 19 6-9 S. Sewer -6.0 3 118.9 11.4 101.7 90.6 90 ' 20 6-9 S. Sewer -4.0 3 118.9 11.9 108.5 91.2 90 21 6-9 E. Sewer -2.0 1 123.4 7.1 118.0 95.6 90 22 g_g E. Sewer S.G. 1 123.4 9.0 115.4 93.5 90 ' 23 6-9 S. Sewer -2.0 3 118.9 12.5 108.7 91.5 90 24 6-9 S. Sewer S.G. 3 118.9 10.5 112.3 94.4 90 ~ 25 6-9 Tie-In -6.0 1 123.4 9.7 112.4 91.1 90 (F.G.) Indicates Finish Grade '(*) Sand Cone Test Method ' EnGEN Corporatioa S , Wesbide 178 LP Projed No: T1352-C , Appendix Page 2 FIELD TEST RESULTS (CONTINUOUS) ' ~SUMMARY OF FIELD IN-PLACE DENSITY TEST RESULTS~ (NUCLEAR GAUGE TEST METHOD) Test Depth Max Moisture Dry Relative Required Test Soii Date Elev. Densiiy Content Density Compaction Compactio No. (1998) Test Locations ~~ TYPe (PCF) (%) (PCF) (%) (°/a) - . .e~.,..,dc~e~..ir 26 6-9 Tie-In -4.0 1 123.4 6.2 115.7 93.8 90 ' 27 g_g Tie-In -2.0 1 123.4 8.6 118.0 95.7 90 28 6-9 Tie-In S.G. 1 123.4 8.9 113.3 91.8 90 29 6-10 Electric Trench -2.0 3 118.9 10.9 110.5 92.9 90 ' 30 6-10 Electric Trench S.G. 3 118.9 12.1 108.1 90.9 90 31 7-29 Fireline N.E. -2.0 2 118.6 13.4 107.2 90.5 90 ' Electrical Line g2 7_29 Structure -2.0 1 123.4 12.1 110.4 90.0 90 33 7-29 Road Crossing -1.0 1 123.4 13.9 114.7 93.0 90 ' 34 7-29 Building -2.5 1 123.4 15.2 113.7 92.0 90 35 7-29 Parallel Sveet -1.5 1 123.4 10.6 112.3 91.0 90 Drivewav/Parkinq 36 8-6 W. Approach S.G. 2 123.4 8.8 118.6 96.1 95 37 8-6 W. Approach S.G. 2 123.4 7.8 117.3 95.1 95 , 38 8-6 w. Approach S.G. 2 123.4 10.1 121.3 98.3 95 39 8-14 E. Approach S.G. 6 125.9 10.2 119.9 95.2 95 ' 40 8-14 E. Approach S.G. 6 125.9 8.8 122.1 97.0 95 41 8-14 E. Approach S.G. 6 125.9 7.9 119.7 95.1 95 42 8-17 S. Corner, Parking S.G. 2 123.4 12.1 112.2 90.6 95 ' 43 8-17 S. Comer, Parking S.G. 2 123.4 11.6 114.4 92.8 95 44 g_~7 S. Corner, Parking S.G. 2 123.4 12.3 113.6 92.0 95 43A 8-17 Retest of #42 S.G. 2 123.4 10.6 118.5 96.0 95 ' 44A 8-17 Retest of #43 S.G. 2 123.4 12.5 119.2 96.6 95 45 8-17 S. Parking $,G. 2 118.6 10.1 107.0 90.2 90 ' 46 8-17 s. Parking S.G. 4 104.8 12.9 97.1 92.7 90 47 8-17 W. Parking S.G. 2 118.6 10.1 107.1 90.3 90 48 8-17 W. Parking S.G. 4 104.8 8.9 95.6 91.2 90 ' qg 8_17 E. Parking S.G. 2 118.6 10.5 112.8 95.2 90 50 8-17 N. Parking S.G. 4 104.8 5.4 101.1 96.5 90 ' 51 8-17 N. Parking S.G. 2 118.6 9.6 111.6 94.1 90 90 52 8-17 w. Driveway S.G. 2 118.6 9.8 110.1 92.8 '( F.G.) Indicates Finish Grade ( *) Sand Cone Test Method ' EnGEN Corporation ~p ' I Westside 178 LP Project No: T1352-C ' Appendix Page 3 FIELD TEST RESULTS (CONTINUOUS) ' (SUMMARY OF FIELD IN-PIACE DENSITY TEST RESULTS~ I (NUCLEAR GAUGE TEST METHOD~ Test DeP~ Soil Max Moisture Dry Relative Required Test Date ti T t L Elev. TYPe Density ntent Co Density Compaction Compactio No. (1998) oca ons es (F~ (PCF) ~ ( /o) (PCF) ( /o) ( /o) Drivewav/Parkinq 53 8-27 Rear Driveway Base 7 136.1 8.8 131.5 96.6 95 ' 54 8-27 S.E. Comer Base 7 136.1 10.1 125.7 92.4 95 55 8-28 S.w. Side Base 7 136.1 9.7 131.7 96.8 95 56 8-28 s.w. well Base 7 136.1 9.2 130.4 95.8 95 ' 5~ 8_2g W. side Base 7 136.1 7.0 133.7 98.3 95 58 8_2g N.W. Drive Base 7 136.1 7.0 135.7 99.7 95 , 59 g_Zg . S.E. Side Base 7 136.1 9.0 133.7 98.2 95 60 8-28 S.E. Comer Base 7 136.1 8.9 129.4 95.1 95 61 8-28 N.w. Side Base 7 136.1 9.4 131.7 96.8 95 t *62 8_2g N. Corner Base 7 136.7 10.0 128.3 94.3 95 63 8-28 E. Drive Base 7 136.7 8.6 131.9 96.9 95 ' 64 8-28 N.E. Side Base 7 136.7 8.3 133.1 98.2 95 65 8-28 Retest of #62 Base 7 136.7 9.5 129.3 95.0 95 66 9-2 Sidewalk N. S.G. 3 118.9 10.7 113.0 95.0 90 ' 67 9_2 Sidewalk N. S.G. 3 118.9 9.4 109.6 92.2 90 68 9-2 Sidewalk N.E. S.G. 3 118.9 9.7 112.8 94.9 90 gg 9_2 Sidewalk N.E. S.G. 3 118.9 10.4 112.7 94.8 90 ( F.G.) Indicates Finish Grade ~ *) Sand Cone Test Method ' ' ' 1 ' ~ , EnGEN Corpondon ~ Westside 178 LP Projed No: T1352-C Appendix Page 4 SUMMARY OF OPTIMUM MOISTURE CONTENT / MAXIMUM DRY DENSITY RELATIONSHIP TEST RESULTS ASTM D1557-91 Soil Maximum Soil Description Dry Density Type (USCS Symbol) (PCF) 1 Fine to Coarse Sand, Brown (SV1n 123.4 2 Sandy Silt, Gray (ML) 118.6 3 Sandy Silt, Brown (ML) 118.9 4 Sandy Siit, Gray (ML) 104.8 5 Silty Coarse Sand, Red Brown (SV1~ 125.8 g Sandy Silt, Gray (ML) 125.9 7 Sandy Gravel, Gray (G11~ 136.1 Optimum Moisture Content (%) 8.3 13.6 10.8 10.5 9.6 10.3 9.6 EnGEN Corporation $ Westside 778 LP Projed Number: T1352C Appendix Page 5 DRAWINGS EnGEN Corporation ~