HomeMy WebLinkAboutTract Map 3552 Lot 7 Geotechnical Rpt & Compaction Test Results
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-Soil Engineering and Consulting Services . EngineeringGeology. CompaclionTesting
-Inspections. ConslruclionMalerialsTesling. LaboraloryTesting-PercolationTesling
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CITY OF TEMECULA
ENGINEERING DEPART:'IiE~IT
GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
ROUGH GRADING OPERATIONS
Ahmed Property
Assessor's Parcel Number: 922-170-001
Lot 7 of Tract 3552
Vallejo Avenue
City of T emecula, County of Riverside, California
Project Number: T1060-C1
January 24, 2005
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Prepared for:
Mr. Nasir Ahmed
249Q9 Madison Avenue, Suite 1511
Murrieta, Califomia 92562
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Ahmed, Nasir Mr.
Project Number: T1060-C1
TABLE OF CONTENTS
SECTION NUMBER AND TITLE
PAGE
1.0 SITE/PROJECT DESCRIPTION AND LOCATION ..................................................................... 1
1.1 PROJECT LOCATION .................................................................................................1
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
3.0 TESTING .......................................................................................................................... 3
3.1 FIELD TESTING PROCEDURES .................................,.................................................3
3.2 LABORATORY TESTING ... .... ................,..... .... .... ......... ......... ......... ... ......... ... ... ...........3
3.2.1 MOISTURE-DENSITY RELATIONSHIP TEST ................................................... 3
3.2.2 EXPANSION INDEX TEST ............................................................................ 3
3.2.3 SOLUBLE SULFATE TEST........................................................................... 4
4.0 EARTH MATERIALS........................................................................................................... 4
5.0 CONCLUSIONS AND RECOMMENDATIONS ........................................................................... 4
5.1 GENERAL .......... .... ... .............. ......... ................... ............... ... ... ..... ............... ..... ......4
6.0 CLOSURE......................................................................................................................... 5
APPENDIX:
TEST RESULTS
DRAWINGS
EnGEN Corporation
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. Soil Engineering and Consulting Services . Engineering Geology . Compaction Testing
-lnspections.ConstrllCtionMalerialsTesting. LaooratoryTesting. Percolation Tesling
-Geology-WaIerResourceStudies . PIlaseI& II EnvironmenlalSileAssessmenls
Cor~oration
ENVIRONMENTAL & GEOTECHNICAL ENGINEERING NETWORK
January 24, 2005
Mr. Nasir Ahmed
24909 Madison Avenue, Suite 1511
Murrieta, Califomia 92562
(207) 577-0444 I FAX (951) 696-1251
Attention:
Mr. Nasir Ahmed
Regarding:
GEOTECHNICAL REPORT AND COMPACTION TEST RESULTS
ROUGH GRADING OPERATIONS
Ahmed Property
Assessor's Parcel Number; 922-170-001
Lot 7 of Tract 355
Vallejo Avenue
City of Temecula, County of Riverside, Califomia
Project Number: T1060-C1
References:
1.
EnGEN Corporation, Geotechnical Report and Compaction Test Results
Rough Grading Operations, Ahmed Property, Assessor's Parcel Numbers:
922-170-001 and 922-170-002, Lot 8 and Portion of Lot 7, Tract 3552, Vallejo
Avenue, City of Temecula, County of Riverside, California, Project Number:
T1060-CS, dated November 30,2004.
2.
FES, Inc., Precise Grading Plan, Portion of Lot 7, Tract 3552, 28915 Vallejo
Avenue, Temecula, California 92592, plans dated December 21,2004.
Dear Mr. Ahmed:
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.
1.0 SITE/PROJECT DESCRIPTION AND LOCATION
1.1
PROJECT LOCATION
The subject site consists of approximately 2.5-acres, located on the southwest side of
Vallejo Avenue, southwest of the intersection of Vallejo Avenue and Ynez Road, in the City
of Temecula, County of-Ri~~ide, California.
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. ORANGE-.COUNtY 0 I E26i5(jr~nge A e ue, Sa"Ya~Ana, .CA92707 . ph~ne: (:d4)'~~6''405,rqax: (7.14) 546-4052 1-
B SiTe: www.enecorp.cc5rr{.E-MA1L:engenc6rJ)@engencorp.co~
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Mr. Nasir Ahmed
Project Number: T1060-C1
January 2005
Page 2
1.2 SITE DESCRIPTION
According to the Referenced No. 1 report, lot 7 was previously rough graded and is underlain
by approximately 2 to 4-feet of previously engineered fill material. Prior to current grading
operations, topography and surface conditions of the site were relatively flat to gently
sloping with surface drainage to the south at a gradient of less than 10 percent.
1.3 PROJECT DESCRIPTION
It is understood that the subject site is to be developed with a single family residence 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 January 18, 2005 through January 20, 2005.
2.2 CONTRACTOR AND EQUIPMENT
The grading operations were performed by Custom Dirt Work through the use of one (1)
Trac-Loader.
2.3 GRADING OPERATIONS
Grading within the subject site consisted of a cut/fill operation as well as an overexcavation
and replacement operation. Grasses and weeds were removed prior to fill placement. Fill
material was generated from the cut portions of the pad area, and used to bring the
building pad and fill portions of the pad area to finish grade elevation. Overexcavated earth
material was stockpiled and later used as fill. Bottoms were observed, probed and found to
be into a combination of Pauba Formation bedrock and previously engineered fill material
by a representative of this firm.
Overexcavation was performed throughout the entire building pad to a depth of 3-feet
below original grade elevation and to a minimum distance of 5-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
EnGEN Corporation .3
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Mr. Nasir Ahmed
Project Number: T1060-C1
January 2005
Page 3
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.
3.0 TESTING
3.1 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.
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 0 1557-02 procedures,
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 was performed in
accordance with ASTM D 4829-03. The material tested consisted of light brown silty sand,
which has an Expansion Index of 1. This soil is classified as having a very low expansion
potential.
EnGEN Corporation l\
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Mr. Nasir Ahmed
Project Number: T1060-C1
January 2005
Page 4
3.2.3 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.
4.0 EARTH MATERIALS
The natural earth materials encountered on-site generally consisted of light brown silty
sand.
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 Rough Grading Report.
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 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 and performance of the
. ,..
EnGEN Corporation ~
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Mr. Nasir Ahmed
Project Number: T1060-C1
January 2005
Page 5
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
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/ReportinglCfT1060.C1 Nasir Ahmed
EnGEN Corporation (p
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Mr. Nasir Ahmed
Project Number; T1060-C1
Appendix Page 1
APPENDIX:
TEST RESULTS
EnGEN Corporation '1
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Mr. Nasir Ahmed
Project Number: T1060-C1
Appendix Page 2
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Test Depth Max Moisture Dry Relative Required
Test
I No. Date Test Locations Elevation Soil TYPE Density Content Density Compaction Compaction
(2005) (FT) (PCF) ("!o) (PCF) ("!o) ("!o)
1 01-19 Lot 7 1011 A1 #N/A 9.2 125.1 #N/A 90.0%
I 2 01-19 Lot 7 1012 A1 #N/A 9.4 123,8 #N/A 90.0%
3 01-20 Lot 7 F.G. A1 #N/A 9.1 121.6 #N/A 90.0%
I 4 01-20 Lot 7 F.G. A1 #N/A 9.6 122.8 #N/A 90.0%
5 01-20 Lot 7 F.G. A1 #N/A 9.9 122.3 #N/A 90.0%
FIELD TEST RESULTS
(Summary of Field In-Place Density Test Results)
(Nuclear Gauge Test Method)
(5 G) 5 bg d / (F G ) F" h G d
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Mr. Nasir Ahmed
Project Number: T1060-C1
Appendix Page 3
SUMMARY OF OPTIMUM MOISTURE CONTENT
MAXIMUM DRY DENSITY RELATIONSHIP TEST RESULTS
ASTM D 1557-02
Soli Description (USCS Symbol) Soli Type Maximum Dry Optimum Moisture Content
Density (PCF) (%)
Silty Sand, Light Brown (SM) A1 127.9 9.2
SUMMARY OF EXPANSION INDEX TEST RESULTS
ASTM D 4829-03
Dry Moisture Moisture Expansion
Soil Type Depth (FT) Density Condition Condition
(pet) Before Test After Test Index
E1 -1 113.6 9.2% 14.0% 1
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BASIS OF BEARING:
THE BEARINGS SHOWN HEREON ARE BASED
ON THE SOUTHERLY LOT LINE OF LOT 7,
TRACT 3552 SHOWN AS N 73.5"26" E
BENCHMARK:
RIVERSIDE CG. BENCHMARK "600-6-81"
ELEV. 997.62'
BRASS DISK NEAR 1-15 SOUTH BOUND ON RAMP
OWNER /DEVELOPER:
SCALE
CHECKED BY:
TR
~ REV. PER 2ND PlAN CHECK
~ 1 ST PlAN CHECK
R [VI S' 0 N S
MR. NASIR AHMED
24909 MADISON AVE 11511
MURRIETA. CA 92562
(207) 577-0444
ENGEN CORPORA~ON
41607 ENTERPRISE CIR. N. STE.1
TEMECULA, CALIF. 92590
PHONE: (951) 926-2230
FAX: (951) 926-3722
HORIZONT AL
R.C.E. No.
58627
EXPIRES:
12-31-06
___________ ______.___..__~_,.__. __.______.,________._._~___~m_. ________._,,_____._.__~.____.__ -
ABBREVIA TIONS
/
A.C.
OS
ED
EP
E PB
ELEC
EX
FF
FH
FL
FP
FS
FG
G8
PP
(N)
R/W
ASPHALT CONCRETE
DOWNSPOUT
EXTRA DEPTH FOOTINg
EDGE OF PAVEMENT
ELEC1RIC PULL BOX
ELECTRICAL
EXISTING
FINISH FLOOR
FIRE HYDRANT
FLOWLINE
FINISH PAD
FINISH SURFACE
FINISH GRADE
GRADE BREAK
POWER POLE
NEW
RIGHT OF WAY
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LEGEND
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62.1
(6~.O)
PROPOSED ELEVA TlON
EXISTlNG ELEVATION
.
FLOW LINE
PROPERTY LINE
EXISTING CONTOUR
PROPOSED CONTOUR
DAYUGHT
- --- -(101.3)- - -
- -101J- --
rn EASEMENT IN FAVOR OF E.M, W.O. FOR UTILI TY PUHPOSES.
INSTRUMENT NO. 84445 RECORDED 7/29/71.
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F'F'-1014 75
SEC. A-A
N.T.S.
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LEGEND
SEC. B-B
N.T.S.
~
11'
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APPROXIMATE LOCATION OF IN PLACE DENSITY TEST
APPROXIMATE LIMITS OF BUILDING OVEREXCAVATION
APPROXIMATE ELEVATION OF OVEREXCAVATION BOTTOM
-.-e-
6
CONSTRUCTION NOTES
QUANTITIES
4,348 SO Fr
.303 SO FT
CD CONSTRUCT 5" CONCRETE DRIVEWAY
(D CONSTHUCT 4" CONCHETE HAROSCAPE
CD CONSTRUCT CONCRE. TE DRIVEWAY
~. APPROACH PER C.O.T. STANDARD PLAN 207
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~RE ACCESS~OAD (DRIVEWAY). SHALL BE DESIGNED TO
SUSTAIN 80.000 Ibe. GVW ON ALL WEATHER SURFACE
------ ------.~ .-
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1,247 SQ. FT.
FIRE DEPARTMENT NOTE
GRAPHIC SCALE
1,0 0 5 10 20
~~l
( IN FEET )
1 inch == 20 ft.
40
I EnGEN Co
oration
ROUGH GRADE SITE PLAN
Environmental
An..smentl
PROJ. NO. L004- 242GR
ORA WING NO.
LOT 7. TRACT 3552
PROJECT NUMBER: T1060-C1
DATE: JANUARY 2005
SCALE: 1 n=20'
CLIENT NAME:
NASIR AHMED
FIGURE:
1
CITY OF TEMECULA
DEPARTMENT OF PUBLIC WORKS
PRECISE GRADING PLAN
PORTION OF LOT 7, TRACT 3552
28915 VALLEJO AVE
TEMECULA, CALIFORNIA 92592
SHEET:
2 OF 2
DESIGNED BY: ORA WN BY:
~ JW
PLANS PREPARED UNDER THE SUPERVISION OF
~ fb DATE:Jzlzl/04-
, ,
THOMAS M. RUI____
RECOMMENDED BY: DATE: /L/~~
ACCEPTED BY: ~!- ~ DA TE: 1/5/o!7
DEPUTY DIRECTOR OF PUPlIC WORKS
RON ARD J. PARKS
2
SOILS ENGINEER/GEOLOGIST:
PREPARED BY:
"-20'
VERTICAL
NONE
12/17/04
11/JO/O~
DATE
N'VD
R. C.E. No.
19744
EXPIRES:
9-30-05