HomeMy WebLinkAboutParcel 2 Geotechnical & Compaction
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GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
ROUGH GRADING OPERATIONS
Industrial Condominiums of T emecula
Assessor's Parcel Number: 909-370-024
Parcel 2 of Parcel Map 28657-1
Remington Avenue
City of Temecula, County of Riverside, California
Project Number: T3144-C
May 10, 2006
Prepared for:
Industrial Condominiums of Temecula, LLC
13007 Kirkham Way, Suite A
Poway, California 92064
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Industrial Condominiums of Temecula, LLC
Project Number: T3144-C
TABLE OF CONTENTS
SECTION NUMBER AND TITLE
PAGE
1 ~O SITE/PROJECT DESCRIPTION AND LOCATION ..................................................................... 2
1.1 PROJECT LOCATION .................................................................................................2
1..2 SITE DESCRIPTION...................................................................................................2
1.3 PROJECT DESCRiPTION..... ........... .............. ............ ................... ....... ...... ......... ...... ...2
2.0 SCOPE OF WORK ............................................................................................................. 2
2.1 TIME OF GRADING....................................................................................................2
2.2 CONTRACTOR AND EQUIPMENT .................................................................................2
2.3 GRADING OPERATIONS ............................................................................................2
2.4 FIELD TESTING PROCEDURES.... ............. ........ ........... .............. ................ .................3
2.5 LABORATORY TESTING .................... .................... ........................................ .... ...... ...3
2.5.1 MOISTURE-DENSITY RELATIONSHIP TEST ................................................... 3
2.5.2 EXPANSION INDEX TEST ............................................................................ 3
2.5.3 SOLUBLE SULFATE TEST ........................................................................... 4
3.0 EARTH MA TERIALS........................................................................................................... 4
4,0 CONCLUSIONS AND RECOMMENDATIONS ........................................................................... 4
4: 1 GENERAL 4
5.0 CLOSURE......................................................................................................................... 5
APPENDIX:
TEST RESULTS
DRAWINGS
EnGEN Corporation
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May 10, 2006
Industrial Condominiums of Temecula, LLC
13007 Kirkham Way, Suite A
Poway, California 92064
(858) 391-9009 I FAX (858) 391-3093
Attention: Mr. Norm Turoff
Regarding: GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
ROUGH GRADING OPERATIONS
Industrial Condominiums of Temecula
Assessor's Parcel Number: 909-370-024
Parcel 2 of Parcel Map 28657-1
Remington Avenue
City of Temecula, County of Riverside, Califomia
Project Number: T3144-C
References: 1. EnGEN Corporation, Supplemental Geotechnical Engineering Study,
Remington Avenue II, Assessor's Parcel Number: 909-370-024, Parcel 2 of
Parcel Map 28657-1, Remington Avenue, City of Temecuia, County of
Riverside, California, Project Number: T3144-SGS, dated April 26, 2004.
2. EnGEN Corporation, Response To County Review Comments, County
Geologic Report No. 1353, City of Temecula Project No. PA 04-0361,
Remington Avenue II, Assessor's Parcel Number: 909-370-024, Parcel 2,
Parcel Map 28657-1, Remington Avenue, City of Temecula, County of
Riverside, California, Project Number: T3144-CS, dated October 8,2004. .
3. EnGEN Corporation, Review Of Proposed Building Locations With Respect
To Restricted Use Zone, Industrial Condominiums of Temecula, Assessor's
Parcel Number: 909-370-024, Parcel 2, Parcel Map 28657-1, Remington
Avenue, City of Temecula, County of Riverside, California, Project Number:
T3144-CS1, dated March 1, 2005.
4. Spear and Associates, Inc, Precise Grading and Erosion Control Plan,
Industrial Condominiums of Temecula, Parcel 2, Parcel Map 28657-1, PA 05-
0127, City ofTemecula, plans dated April 18, 2006.
Dear Mr. Turoff:
In accordance with 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.
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Industrial Condominiums of Temecula, LLC
Project Number: T3144-C
May 2006
Page 2
1.0 SITE/PROJECT DESCRIPTION AND LOCATION
1.1 PROJECT LOCATION
The subject site consists of approximately 5.43-acres, located on the northeast side of
Remington Avenue southwest of the intersection of Remington Avenue and Diaz Road in
the City of Temecula, County of Riverside, California.
1,.2 SITE DESCRIPTION
Based on the Referenced NO.1 Supplemental Geotechnical Study, the site was previously
rough graded and is underlain by approximately 14 to 17-feet of previously engineered fill
material.
Prior to current grading operations, topography and surface conditions of the site were
relatively flat with surface drainage to the east at a gradient of less than 2 percent.
1.3 PROJECT DESCRIPTION
It is understood that the subject site is to be developed with three (3) commercial! industrial
buildings with slab-on-grade concrete floors supported on conventional continuous and pier
footings, with associated driveway as well as hardscape and landscape improvements.
2.0 SCOPE OF WORK
2.1 TIME OF GRADING
This report represents geotechnical observations and testing during the construction
operations from May 1, 2006 through May 4, 2006.
2.2 CONTRACTOR AND EQUIPMENT
The grading operations were performed by Mike Sampo, Inc. through the use of one (1)
CAT 613 scraper, one (1) skip loader, one (1) backhoe with sheeps foot compaction wheel,
one (1) motor grader and one (1) water truck.
2.3 GRADING OPERATIONS
Grading within the subject site consisted of a cut/fill operation. Grasses and weeds were
removed prior to fill placement. Fill material was generated from the parking lot and
driveway portions of the site, and used to bring the building pad portions of the site to finish
grade elevation. Bottoms were observed, probed and found to be into competent
previously engineered fill material by a representative of this firm.
EnGEN Corporation
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Industrial Condominiums of Temecula, LLC
Project Number: T3144-C
May 2006
Page 3
Over-excavation was performed in the building pad to a depth of 1-foot below finish grade
elevation and to a distance of 5-feet outside the proposed structures. 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 gO 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.
2.4
FIELD TESTING PROCEDURES
Field in-place density and moisture content testing were performed in general accordance
with ASTM 0 2922-03 and ASTM 0 3017-01 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 were determined
from review of the referenced grading plans.
2.5
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.
2.5.1 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 D 1557-02 procedures.
2.5.2 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 was performed in
accordance with CBC 18-2. The material tested consisted of brown silty sand, which has
an Expansion Index of 9. This soil is classified as having a very low expansion potential.
EnGEN Corporation
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Industrial Condominiums of Temecula, LLC
Project Number: T3144-C
May 2006
Page 4
The results are presented in the Summary of Expansion Index Results in the Appendix of
this report.
2.5.3 SOLUBLE SULFATE TEST
Based on this firm's familiarity with the soils used to construct the building pad, it is our
opinion that soluble sulfates are not a concern, and as a result, normal Type II cement can
be used in concrete making contact with the native soils.
3.0 EARTH MATERIALS
The natural earth materials encountered on-site generally consisted of brown silty sand.
4.0 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 Supplemental
Geotechnical Engineering Study.
4.1 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
Supplemental Geotechnical Study, 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 commercial/industrial 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 the 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
EnGEN Corporation
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Industrial Condominiums of Temecula, LLC
Project Number: T3144-C
May 2006
Page 5
and performance of the development is limited to the actual portions of the project
observed and/or tested by EnGEN Corporation.
5.0 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
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.
Distribution: (4) Addressee
FILE: EnGEN/ReportinglCfT3144-C Ind. Condos of Temecula, lLC, Rough grading
EnGEN Corporation
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APPENDIX:
TEST RESULTS
Industrial Condos of Temecula, LLC
Project Number: T3144-C
Appendix Page 1
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EnGEN Corporation
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Industrial Condos of Temecula, LLC
Project Number: T3144-C
Appendix Page 1
SUMMARY OF OPTIMUM MOISTURE CONTENT
MAXIMUM DRY DENSITY RELATIONSHIP TEST RESULTS
ASTM D 1557-02
Soil Description (USCS Symbol) Soil Type Maximum Dry Optimum Moisture Content
Density (PCF) (%)
Silty Sand Brown (SM) A1 133.3 6.7
SUMMARY OF EXPANSION INDEX TEST RESULTS
CBC 18-2
Dry Moisture Moisture Expansion
Soil Type Depth (FT) Density Condition Condition Index
(pcf) Before Test After Test
E1 -1 114.2 8.0% 16.0% 9
EnGEN Corporation
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Industrial Condos of Temecula, LLC
Project Number; T3144-C
Appendix Page 1
FIELD TEST RESULTS
(Summary of Field In-Place Density Test Results)
(Nuclear Gauge Test Method)
(S.G.) = Subgrade / (F. G.) = Finish Grade
Test Test Depth Max Moisture Dry Relative Required
No. Date Test Locations Elevation Soil Type Density Content Density Compaction Compaction
(2005) (FT) (PC F) (%) (PCF) (%) ('!o)
1 05,01 PadA -1 A1 133.3 8.0 120.1 90.1% 90.0%
2 05-01 PadA -1 A1 133.3 7.6 121.2 90.9% 90.0%
3 05-01 PadB -1 A1 133.3 7.9 120.8 90.6% 90.0%
5 05-01 Pad C -1 A1 133.3 7.2 120.6 90.5% 90.0%
6 05-01 PadC -1 A1 133.3 7.3 121.8 91.4% 90.0%
7 05-03 PadB FG A1 133.3 6.8 122.4 91.8% 90.0%
8 05-03 Pad B FG A1 133.3 6.0 123.2 92.4% 90.0%
9 05-04 Pad A FG A1 133.3 4.9 124.4 93.3% 90.0%
10 05-04 Pad A FG A1 133.3 5.1 122.9 92.2% 90.0%
11 05-04 Pad C FG A1 133.3 5.1 121.8 91.4% 90.0%
12 05-04 PadC FG A1 133.3 4.7 121.0 90.8% 90.0%
EnGEN Corporation
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APPENDIX:
DRAWINGS
Industrial Condos of Temecula, LLC
Project Number: T3144.C
Appendix Page 4
EnGEN Corporation
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