HomeMy WebLinkAboutTract Map 9833-3 Lot 10 Addendum to Rough Grading � fioHoEm Soils Co. Inc� � �
Phone: (951) 894-2121 FAX: (951) 894-2122 E-mail: tl�esoilsco c�aol.com
41548 Eastman Drive, Unit G• Murrieta, CA 92562
October 8, 2009
Mr. Dana Benson
4141 East 7`" Street
Long Beach, California 90804
SUBJECT: ADDENDUM TO REPORT OF ROUGH GRADING
Testing of Drive Approach and Dry Utility Lines
Proposed Single-Famil Residence
APN: 945-160-010, Lot� 1.0 of�•T.rac�Iato:�---98-3�-3'�--
43599 Calle De Velardo
City of Temecula, Riverside County, California
Work Order No. 843701.22B
Dear Mr. Benson:
In accordance with your request, we have prepared this Addendum to Report of Rough Grading
presenting the results of our testing of the drive approach and dry utility lines located at the above
subject site. Compaction test results are included in this report in Appendix C, Tabte I. The
subject pad was graded in accordance with the requirements of the City of Temecula and the 2001
California Building Code (CBC) (see references). Compaction operations were performed by
Diamond W Contractors under the direction of Mr. Wally Willette.
Prior to placement of concrete within the driveway approach, the bottom was scarified a minimum
of 12-inches, brought to near optimum moisture content, and compacted to at least 90% relative
compaction as determined by ASTM D-1557 test method. The fill materials were leveled and
mixed by a loader. Compaction was achieved by wheel rolling by the loader and moisture
conditioning was achieved with a water hose.
The utility trench backfill was placed in thin loose lifts and compacted to at least 90% relative
compaction as determined by ASTM D-1557 test method. The fill materials were leveled and
mixed by backhoe. Compaction was achieved by a compacted wheel with the backhoe and
moisture conditioning was achieved with a water hose.
Maximum Density/Optimum Moisture determinations were performed in the laboratory on
representative samples of onsite soils used in the fill operations. The tests were performed in
accordance with ASTM D1557, Test Method A. Test results, which were utilized in determining
the degree of compaction achieved during fill placement, are presented in Appendix B, Table I.
T.H.E. Soils Co. Inc. W.O. 843701.226
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Mr. Dana Benson
October 8, 2009
Page 2
Soils utilized for compacted fill typically consisted of inedium brown silty Sand (Unified Soils
Classification-SM) derived from onsite soils. Compaction test results are presented in Appendia� C,
Results of Compaction Tests, Table I.
Field density testing was performed in accordance with ASTM Test Method 6938-06e1 (nuclear
gauge). Areas failing to meet the minimum compaction requirements were reworked and retested
until the specified degree of compaction were achieved. The elevations and the results of the field
density tests are presented in Appendix C, Results of Compaction Tests, Table I.
The findings of this report are valid as of the report date. However, changes in the conditions of a
property can occur with the passage of time, whether due to natural processes or the works of man
on this or adjacent properties. In addition, changes in applicable or appropriate standards may
occur, whether they result from legislation or the broadening of knowledge. Accordingly, the
findings of this report may be invalidated wholly or partially by changes outside our control.
Therefore, this report is subject to review and revision as changed conditions are identified.
Our description of testing services is limited to testing on September 2, 2009 and September 18,
2009. The conclusions and recommendations contained herein have been based upon our
observation and testing, as noted. It is our opinion the work performed in the areas denoted has
generally been accomplished in accordance with the job specifications and the requirements of the
regulating agencies. No conclusions or warranties are made for the areas not tested or observed.
This report is based on information obtained during rough grading. No warranty as to the current
conditions can be made. This report should be considered subject to review by the controlling
authorities.
T.H.E. Soils Co. Inc. W.O. 843701.22B
.� • o
Mr. Dana Benson
October 8, 2009
Page 3
This opportunity to be of service is sincerely appreciated. If you have any questions, please call.
Very truly yours,
T.H.E. Soils Company, Inc.
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ATTACHMENTS: �
Appendix A - References
Appendix B- Laboratory Test Results
Appendix C- Results of Compaction Tests
T.H.E. Soils Co. Inc. W.O. 843701.22B
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APPENDIX A
References
T.H.E. Soils Co. Inc. W.O. 843701.22B
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REFERENCES:
Sladden Engineering, 2005, "Geotechnical Investigation, Proposed Single-Family Residence,
43599 Calle De Velardo, Temecula, California", prepared by, Project No. 644-5125, dated
November 30, 2005.
T.H.E. Soils Company, Inc., October 18, 2007, "Report of Rough Grading, Proposed Single-Family
Residence, APN: 945-160-010, Lot 10 of Tract No. 9833-3, 43599 Calle De Velardo, City of
Temecula, Riverside County, California", Work Order No. 843701.22B.
T.H.E. Soils Company, Inc., 2007, "ENGINEER OF RECORD, Proposed Single-Family
Residence, 43599 Calle De Velardo, APN: 945-160-010, Lot 10 of Tract No. 9833-3, City of
Temecula, Riverside County, California, Work Order No. 843701.22", dated August 24, 2007.
T.H.E. Soils Co. Inc. W.O. 843701.22B
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APPENDIX B
Laboratory Test Results
T.H.E. Soils Co. Inc. W.O. 843701.22B
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TABLE I
Maximum Density/Optimum Moisture
%
Description Lbs/Ft3 Moisture
1 Medium Brown Silty Sand 126.0 9.5
�
T.H.E. Soils Co. Inc. W.O. 843701.22B
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APPENDIX C
Results of Compaction Tests
T.H.E. Soils Co. Inc. W.O. 843701.22B
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TABLE I
RESULTS OF COMPACTION TESTS
Job No.: 84370L22B Name: DANA BENSON Date: OCT. 2009
Test Test Elevation Moisture Unit Dry Relative Soil Test Location
No. Date Depth Content Density Compaction Type
(Feet) (%) (PCF) (%)
1 9/18/09 SG 10.9 116.2 92N 1 Driveway Approach
2 " SG 10.4 115:9 92N 1 "
3 9/2/09 SG 10.5 114.5 91N � 1 Utility Line
4 " SG 10.3 114.2 91N 1 "
5 " SG 10.0 113.2 90N 1 "
SEE PLAN FOR TEST LOCATIONS
SC - Sand Cone ASTM D1556-64; DC-Drive Cylinder ASTM D2937-71; N-Nuclear ASTM 3017;
NG-Natural Ground + 85% = Passing Test X*TEST FAILED, SEE RETEST
T.H.E. Soils Co. Inc. W.O. 843701.22B