HomeMy WebLinkAboutParcel 35 Geotechnical Report & Compaction Results Post Grading
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ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NETWORK
I May 13, 1999
: Sorrento Development
1674 Via Del La Valle, Suite 207
: Solana Beach, California 92075
1(619) 793-9472 I : FAX (619) 793-9276
I Attention:
Mr. Mike Reeves
I Regarding:
GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
POST GRADING OPERATIONS
Zevo-Sorrento Development, Lot 35 otTract 28471-1
Zevo Drive, City of Temecula, County of Riverside, California
Project Number: T1521-C
I References:
1.
EnGEN Corporation, Precise Grading Operations, Zevo-Sorrento Development, Lot
35 of Parcel Map 28471-1, Zevo Drive, City of Temecula, County of Riverside,
California, Project Number: T1521-C.
EnGEN Corporation, Updated Geotechnical Study, Proposed Structure, Parcel 35 of
P.M. 28471-1, City of Temecula, County of Riverside, California, Project Number:
T1521-UGS, report dated September 8, 1998.
2.
3.
New Venture Design Inc., Preliminary Site Plan, Lot 39, Zevo Drive, plans dated
August 11, 1998.
Schaefer Dixon Associates, Geotechnical Mass Grading, Report No. 1 Parcel Map
21383 (Core I, Phase I), City of Temecula, County of Riverside, California, report
dated August 1,1991.
4.
I Dear Mr. Reeves:
'According to your request and signed authorization, EnGEN Corporation has performed field
: observations, sampling, and in-place density testing on an "on-call" basis at the above referenced site
I from January 11, 1999 through April 28, 1999.
. The following testing was performed during post 9radin9 operations:
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On-Site Sewerline Trench Backfill
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Parking Lot and Driveway Aggregate Base
On-Site Curb and Gutter Subgrade
Driveway Approach Subgrade
Driveway Approach Subgrade
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On-Site Dry Utility Trench Backfill
Fire Suppression Line Trench Backfill
Parking Lot and Driveway Subgrade
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Sorrento Development
Project Number. T1521-C
May 1999
Page 2
Maximum dry densityloptimurn moisture content tests were conducted on samples of the native materials
. and imported aggregate base. The tests were performed in general accordance with ASTM D1557-78
I procedures. The results are presented in the Appendix of this report. Relative compaction testing was
I performed in general accordance with ASTM D-2992-81 using ASTM D3017 procedures for detenmining
, in-place density and moisture content, respectively, using nuclear density gauge equipment. Test results
i 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 for subgrade in parking
. lot and trench backfill areas of the site, and 95 percent relative compaction in the aggregate base. The
. native soils encountered on the site consisted of Brown to Reddish Brown Silty Sand. Import earth
materials consisted of 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 No. 2 report 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
Ck, !!..:!fr-
: Field Operations Manager
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'1ISERVER11EnGENIReportinglC - Compaction Reportsl1500 SERIES - EnGENIT1521C Sorrent Development. Post Gr
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EnGEN Corporation
I Sorrento Development
Project Number. T1521C
1 Appendix Page 1
FIELD TEST RESULTS
1 (SUMMARY OF FIELD IN-PLACE DENSITY TEST RESULTS)
(NUCLEAR GAUGE TEST METHOD)
1 Test Test Depth Soil Max Moisture Dry Relative Required
No. Date Test Locations Elev. Type Density Content Density Compaction Compaction
(1,999) (FT) (PCF) (%) (PCF) (%) (%)
1 1 1-11 4" Sewer Lateral -1.0 1 127.4 9.3 116.2
91.2 90
1 2 1-11 4" Sewer Lateral -1.0 1 127.4 12-4 115.7 90.8 90
3 1-11 4" Sewer Lateral -1.0 1 127.4 10.9 119.0 93.4 90
4 1-12 Sewer Tie-in -4.0 A1 127.4 13.6 116.8 91.7 90
1 5 1-12 SewerTie-in -1.5 A1 127.4 13.0 119.9 94.1 90
6 3-12 GTE/SCE -1.0 A2 123.5 8.1 111.8 90.5 90
1 7 3-12 GTE/SCE -1.0 A2 123.5 9.5 113.0 91.5 90
8 3c15 Fire Line N.E. Bldg. -3.0 A1 127.4 8.2 116.5 91.4 90
9 3c15 Fire Line'E. Bldg. -3.0 A1 127.4 8.8 115.8 90.9 90
1 10 3c16 Fire Line N.E. Bldg. S.G. A1 127.4 8.7 115.6 90.7 90
11 3'16 Fire Line'E. Bldg. S.G. A1 127.4 8.4 116.3 91.3 90
12 3~24 Curb and Gutter S.G. A2 123.5 7.9 113.4 91.8 90
113 3~24 Curb and Gutter S.G. A2 123.5 11.5 113.4 91.8 90
14 3~24 Curb and Gutter S.G. A2 123.5 11.2 112.0 90.7 90
115 .3;.24 Curb and Gutter S.G. A3 132.2 9.3 126.2 95.4 90
16 3;'24 Curb and Gutter S.G. A3 132.2 8.9 120.7 91.3 90
17 4-2 Approach S.G. A3 132.2 10.8 123.1 93.1 90
118 4-2 Approach S.G. A3 132.2 9.2 120.9 91.5 90
19 4;'27 N. Side Parking Base C1 135.5 8.8 130.1 96.1 95
120 4~27 Ctr. of Parking Lot Base C1 135.5 9.1 128.8 95.0 95
21 4;.27 Ctr. of Parking Lot Base C1 135.5 9.6 123.2 90.9 95
22 4;'27 S. Side of Parking Base C1 135.5 9.6 131.8 97.2 95
123 4;.27 S.w. Parking Base C1 135.5 11.4 125.9 93.0 95
24 4~28 Retest 21 Base C1 135.5 7.8 130.3 96.2 95
125 4~28 Retest 23 Base C1 135.5 10.8 129.4 95.5 95
26 4~28 S. Side of Drive Base C1 135.5 10.5 128.7 95.0 95
27 4028 N. Side of Drive Base C1 135.5 9.8 131.2 96.8 95
I.G.) Indicates Finish .Grade
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EnGEN Corporation
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Sorrento Development
Project Number. T1521C
Appendix Page 2
SUMMARY OF OPTIMUM MOISTURE CONTENT I
MAxIMUM DRY DENSITY RELATIONSHIP TEST RESULTS
ASTM 01557-91
Optimum
Soil Maximum Moisture
Soil Description Dry Density Content
Type (USCS Symbol) (PCF) (%)
A1 Brown Silty Sand with Gravel (SM) 127.4 9.9
A2 Red Brown Sand with Trace Silt (SP) 123.5 10.9
A3 Brown Silty Sand (SM) 132.2 8.8
'C1 Greyish Brown Sandy Gravel (GW) 135.5 9.3
. denotes aggregate base material
A.
EnGEN Corporation
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Sorrento Development
Project Number. T1521C
Appendix Page 3
DRAWINGS
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EaGEN Corporation