HomeMy WebLinkAboutParcel Map 22419 Parcel 1 Geotech & Compaction Results of Precise Grading
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RECEIVED
FEB 2 8 ZOOl
CITY OF TEMECULA
ENGINEERING DEPARTMENT
~~~~~tf:s~'~.GEN Comoration
-SoilflVreerirvOlldCo:s.ilillgSatm.Engira!ingGeo/,(lqy_ CoolpadiooTeslirw;I
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ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NETWORK
GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
PRECISE GRADING OPERATIONS
Schork Residence
Parcel 1 of Parcel Map 22419
43225 Avenida de San Pasqua I
City of Temecula, County of Riverside, California
Project Number: T2224-C
January 29, 2001
Prepared for:
Dr. Bill Schork
clo Bratene Construction
41607 Enterprise Circle North
Temecula, California 92590
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Dr. Bill Schork
clo Bratene Construction
Project Number: T2224-C
TABLE OF CONTENTS
SECTION NUMBER AND TITLE
PAGE
1.0 SITE/PROJECT DESCRIPTION AND LOCATION .............................................................1
1,1 PROJECT LOCATJON",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"""""'"'''''''''' 1
1.2 PROJECT DESCRIPTION"",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,",,,,,,,,,,,,,,,,1
1.3 SITE DESCRIPTION """"""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2
2.0 SCOPE OF WORK ....................................................................................................2
2.1 TIME OF GRADING ,,,,,,,,,,,,,,,,,,,,,,,,,,, ........",,,,,,, ''''''''''''''''''''''''''''''.."""",,, """",,,,2
2.1 CONTRACTOR AND EQUIPMENT..,,,,,,,..,,,,,,,,,,,, ",,,,,,,,,,,,,,,,,,,,, ""'"'''''''''''''''''' """",2
2.2 GRADING OPERATIONS ,,,,,,,,, "",,,,,,, ,,,,,,,,,,, "",,,,,,'..,.., ,.. "",,,,,,,,,,,,,,,,,,,,, ..,..",,,,,,,,, 2
3.0 TESTING ............... ..................................................................................................3
3,1 FIELD TESTING PROCEDURES",,,.,,,,,,,,,,,,,,,,,,.........,,..,,,,,,,,,,,,,,,,,,,,,,.,,.,,........,,,,,,,,,,3
3,2 LABORATORY TESTING"""",.".""".",."""""."""."""",.".""""""""""""""""""" 3
3,2,1 MOISTURE-DENSITY RELATIONSHIP TEST """"""....",............".".""".".."..3
4.0 EARTH MATERIALS/ExPANSIVE SOILS/SOLUBLE SULFATES .......................................3
5.0 CONCLUSIONS AND RECOMMENDATIONS...................................................................3
5,1 GENERAL",,,,,,,,.,,,,,,,,,,,.,,,,,.,,,.,,,,,,, ,,,..,,,,,. ,.......,,,,,,,,, ".." ,,,..,,,,,,,,,,,,, "..,.., "..""..4
6.0 CLOSURE. ..... ... ..... ... ....... ... .... ... ........... ... .... ....... .... ... ... .... ... ... ... ... ... ...... ... ..... ... .......4
APPENDIX
TEST RESULTS
DRAWINGS
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EnGEN Corporation
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January 29, 2001
Comoration
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ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NETWORK
Dr. Bill Schork
clo Bratene Construction
41607 Enterprise Circle North
Temecula, California 92590
(909) 296-3440 I FAX (909) 296-2237
Attention:
Mr. Oz Bratene
Regarding:
GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
PRECISE GRADING OPERATIONS
Schork Residence
Parcel 1 of Parcel Map 22419
43225 Avenida de San pasqual
City of T emecula, County of Riverside, California
Project Number: T2224-C
References:
EnGEN Corporation, Updated Geotechnical Study, Proposed Residence,
Parcel 1 of Parcel Map 22419, 43225 Avenida de San Pasqual, City of
Temecula, County of Riverside, California, Project Number: T2224-UGS,
report dated November 16, 2000,
Bratene Construction and Engineering, Precise Grading Plan, Schork
Residence, Parcel 1 of Parcel Map 22419, plans dated December 14, 2000,
1.
2.
Dear Mr. Bratene:
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
1.1
SITEIPROJECT DESCRIPTION AND LOCATION
PROJECT LOCATION
The subject site consists of approximately 1 acre, located on the west side of Avenida de
San pasqual in the City of Temecula, County of Riverside, California,
1.2 PROJECT DESCRIPTION
It is understood that the subject site is to be developed with a 2-story single family
residence,'wjth slab-on-grade concrete floors, supported on conventional continuous and
I.",{''.):: .,' . ':, pier f~ptj~~~[~, Tr.eremainder of the,~ii~ ~iliconsist "of a drivewayahdt;Pical re!>igel'ltial. . ,:: ,'.,
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Dr. Bill Schork
clo Bratene Construction
Project Number: T2224-C
January 2001
Page 2
1.3 SITE DESCRIPTION
Based on the Referenced No, 1 report, this site was previously graded, The site is a cut/fill
lot with a majority of the lot underlain by Pauba Formation Bedrock, The existing northern
and western 2: 1 fill slopes were created and certified during the previous grading, Prior to
current grading operations, topography and surface conditions of the existing pad area
were relatively flat with surface drainage to the west at a gradient of less than 1 percent.
2.0 SCOPE OF WORK
2.1 TIME OF GRADING
This report represents geotechnical observations and testing during the construction
operations on January 22, 2001.
2.1 CONTRACTOR AND EQUIPMENT
The grading operations were performed by Kiene Construction through the use of one (1)
CAT D4 dozer.
2.2 GRADING OPERATIONS
Grading within the subject site consisted of a minor cut/fill operation designed to alter the
pad surface for proper building footprint and drainage arrangements, Grasses and weeds
were removed prior to fill placement. Fill material was generated from the small elevated
area in the eastern most portions of the site, and used to bring the driveway a~ well as the
building pad portions of the site to finish grade elevation, Bottoms were observed, probed
and found to be into competent bedrock by a representative of this firm, The exposed
bottoms were scarified and moisture conditioned to a depth of 6 to 12-inches then
compacted to 90 percent. Less than 1-foot of fill was placed in lens thicknesses of 4 to 6-
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 area was generally graded to the elevations noted on the Grading Plan,
However, the actual pad location, dimensions, elevations, slope locations and inclinations,
etc, were surveyed and staked by others and should be verified by the Project Civil
Engineer.
EnGEN Corporation
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Dr, Bill Schork
clo Bratene Construction
Project Number: T2224-C
January 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-2922-96 and ASTM-D-3017-96 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,
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 r;naterials used as fill. The tests were performed in general accordance with
ASTM D1557-91 (98) procedures, The test results are presented in the Appendix
(Summary of Optimum Moisture Content I Maximum Dry Density Relationship Test
Results),
4.0 EARTH MATERIALS/ExPANSIVE SOILS/SOLUBLE SULFATES
The natural earth materials used to construct the building pad generally consisted of brown
coarse sands which are considered non-expansive. As a result, no special design or
construction is necessary for expansive soils purposes, 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,
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 Updated Geotechnical
Study,
EnGEN Corporation
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Dr. Bill Schork
clo Bratene Construction
Project Number: T2224-C
January 2001
Page 4
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 andlor reinforcing steel so as to verify andlor
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 andlor 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
practices and principles, No further warranties are implied or expressed beyond the direct
representations of this report.
EnGEN Corporation
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Dr. Bill Schork
clo Bratene Construction
Project Number: T2224-C
January 2001
Page 5
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
i~Off
Osb'orn
Princip Geotechnical Engineer
Exp' s 09-30-01
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FILE: EnGEN/Reporting/CfT2224-C Silt Schork, Precise Grading
EnGEN Corporation
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Mr. Bill Schork
Project Number: T2224-C
Appendix Page 1
APPENDIX:
TEST RESULTS
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EnGEN Corporation
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Mr. Bill Schork
Project Number: T2224-C
Appendix Page 2
FIELD TEST RESULTS
(Sumrnary of Field In-Place Density Test Results)
(Nuclear Gauge Test Method)
(S, G) = Subgrade I (F. G) = Finish Grade
Test Depth Soil Max Moisture Dry Relative Required
Test Date Test Locations Elevation Type Density Content Density Compaction Compaction
No. (2000) (FT) (PCF) (%) (PCF) (%) (%)
1 01.-22 Pad Area Garage F,G, Al 127.4 10,0 116,8 91,7% 90,0%
2 01.-22 Pad Area SE Corner F,G, Al 127.4 9.2 119,2 93,6% 90,0%
3 01-22 Pad Area SW Corner F,G, Al 127.4 9.8 120,3 94.4% 90,0%
4 01-22 Pad Area N Corner F,G, Al 127.4 10,3 115.6 90.7% 90.0%
5 01-22 NW Corner F,G, Al 127.4 9,8 116,0 91,1% 90,0%
EnGEN Corporation
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Mr. Bill Schork
Project Number: T2224-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
(PCF) Content (%)
Sand, Brown (SP) A1 127,4 9,9
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EnGEN Corporation
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Mr. Bill Schork
Project Number: T2224-C
Appendix Page 4
APPENDIX:
DRAWINGS
EnGEN Corporation t\