HomeMy WebLinkAboutParcel Map 30404 Soils ReportT.H.E. Soils Co., In& •
Phone: (951) 894-2121 FAX: (951) 894-2122 E-mail: thesoilsco@a0ol.com
41539 Kalmia St., Suite 101 • Murrieta, CA 92562
June 2, 2010
Mr. Erik Halter
Santiago Estates, LLC
5824 East Sandstone Court
Orange, California 92869
SUBJECT: REPORT OF SITE IMPROVEMENTS
Density Testing During Street Improvements along Santiago & Ormsby Roads
Parcel Map 30404
30270 Santiago Road
City of Temecula, Riverside County, California
Work Order No. 14441001.23
REFERENCES: T.H.E. Soils Company, Inc., 2007, "Report of Rough Grading, Proposed 2 -
Single -Family Residential Parcels, 30207 Santiago Road, APN: 945-080-009,
Temecula, Riverside County, California", Work Order No. 1 1 9770 1.22, dated
August 31, 2007.
Dear Mr. Halter:
W.C. Hobbs, Consulting Engineer, 2002, "Preliminary Soil Engineering
Evaluation, Tentative Parcel Map 30404, Portion of Lot 6 of PM 6807, 30207
Santiago Road, City of Temecula, Riverside County, California", Project No.
02019-1, dated April 24, 2002.
INTRODUCTION
In accordance with your request, we have prepared this Final Report of Site Improvements presenting
the results of our observation and testing during site improvements for the subject site including
ribbon gutter, dry utilities backfill, water line backfill, curb & gutter subgrade, drive approach,
handicap ramp, street subgrade and base grade testing. All compaction test results are included in this
report in Appendix B, Tables I thru VII. The subject site was graded in accordance with the
preliminary soils report, the requirements of the City of Temecula, and the current Uniform Building
Code (UBC) at the time of street improvements.
For our investigation and observation and testing of the above mentioned site improvements, we
utilized a copy of the 40 -scale "Santiago and Ormsby Road Improvement Plan" prepared by the City
of Temecula to locate our field density tests. Reduced not -to -scale copies of the street improvement
plans were utilized as base maps for our Density Test Location Maps, Plates 1 and 2.
T.H.E. Soils Company. Inc. W. O. No. 14441001.23
Mr. Erik Halter • •
Santiago Estates, LLC
June 2, 2010
Page 2
Proposed Development
Proposed development included street improvements along Ormsby and Santiago Roads adjacent to
Tentative Parcel 30404.
Site Description
Prior to development, the area of the street improvements was located along the northwest corner of
Santiago and Ormsby Roads in the city of Temecula, southwest Riverside County, California and
consisted of improved dirt roads. The geographical relationships of the site and surrounding area are
shown on our Site Location Map, Figure 1.
BACKFILL AND STREET IMPROVEMENT OBSERVATIONS & TESTING
Water Line & Dry Utility Trench Backfill
The onsite water line and dry utility connections located along Santiago and Ormsby Roads were
properly compacted to a minimum degree of compaction of 90% as determined by ASTM D 1557.
The materials used for backfill consisted predominately of onsite dark brown silty Sands (Unified
Soil Classification - SM). Following placement of the pipe, fill placement and compaction was
achieved utilizing a rubber -tired backhoe with compacting wheel and a water truck (as needed). The
fill was placed in 6 to 8 inch thick lifts and moisture conditioned, as needed, to bring the material to
near optimum moisture content, and was then properly compacted. A minimum degree of
compaction of 90% was required as determined by ASTM D 1557.
Ribbon Gutter and Curb & Gutter
Prior to the placement of Class II aggregate base within proposed ribbon gutter extension in Santiago
Road, the exposed subgrade materials were scarified to a depth of 12 -inches, moisture conditioned to
near optimum moisture, if necessary, and re -compacted to +95 percent of the maximum dry density,
as determined by ASTM D 1557, Test Method C. The Class 11 aggregate base within proposed
ribbon gutter extension in Santiago Road were compacted to +95 percent of the maximum dry
density, as determined by ASTM D 1557, Test Method C.
Prior to the placement of Portland Cement concrete within proposed curb and gutters along Santiago
and Ormsby Roads, the exposed subgrade materials were scarified to a depth of 12 -inches, moisture
conditioned to near optimum moisture, if necessary, and re -compacted to +90 percent of the
maximum dry density, as determined by ASTM D 1557.
Drive Approaches and Handicap Ramp
Prior to the placement of Portland Cement concrete within proposed drive approaches along Santiago
and Ormsby Roads and the access ramp at the intersection of Santiago and Ormsby Roads, the
exposed subgrade materials were scarified to a minimum depth of 12 -inches, moisture conditioned to
T.H.E. Soils Company, Inc. W. 0. No. 14441001.23
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Mr. Erik Halter
Santiago Estates, LLC
June 2, 2010
Page 3
near optimum moisture, and re -compacted to +95 percent of the maximum dry density, as determined
by ASTM D 1557, Test Method A.
Street Subarade Testing
Prior to the placement of Class II Base, the exposed subgrade materials along Santiago and Ormsby
Roads were scarified to a minimum depth of 12 -inches, moisture conditioned to near optimum
moisture, and re -compacted to +95 percent of the maximum dry density, as determined by ASTM D
1557, Test Method A.
Street Base Grade Testing
Prior to the placement of asphalt concrete, the exposed base materials along Santiago and Ormsby
Roads were moisture conditioned and compacted to +95 percent of the maximum dry density, as
determined by ASTM D 1557, Test Method C.
TESTING PROCEDURES
Field Density Testing
Field density testing was performed in accordance with ASTM Test Method D 6938-06el (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 B, Results of Compaction Tests Table I. The approximate
locations of the tests are shown on the Compaction Test Location Map, Plates 1 and 2.
Maximum Density Determinations
Maximum Density/Optimum Moisture determinations were performed in the laboratory on
representative samples of onsite soils and imported Class II Base materials used in the fill operations.
The tests were performed in accordance with ASTM - D 1557, Test Methods A & C. The test results,
which were utilized in determining the degree of compaction achieved during fill placement, are
presented in Appendix A, Table I.
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Our description of our observations and testing services, were limited to those site improvements that
were observed and tested by our field personnel between April 4, 2007 and October 26, 2007. The
conclusions and recommendations contained herein have been based upon our observations 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
T.H.E. Soils Company, Inc. W. 0. No. 14441001.23
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DENSITY TEST LOCATION MAP 1
DENSITY TESTING DURING STREET IMPROVEMENTS
ALONG SANTIAGO 8 ORMSBY ROADS. PARCEL MAP 30404
30270 SANTIAGO ROAD
Y CITY OF TEMECULA, RIVERSIDE COUNTY. CALIFORNIA
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DENSITY TEST LOCATION MAP 1
DENSITY TESTING DURING STREET IMPROVEMENTS
ALONG SANTIAGO 8 ORMSBY ROADS. PARCEL MAP 30404
30270 SANTIAGO ROAD
Y CITY OF TEMECULA, RIVERSIDE COUNTY. CALIFORNIA
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Mr. Erik Halter
Santiago Estates, LLC
June 2, 2010
Page 4
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based on information obtained during site improvements. No warranty as to the current conditions
can be made. This report should be considered subject to review by the controlling authorities.
LIMITATIONS
This report is issued with the understanding that it is the responsibility of the owner, or his
representative, to ensure that the information and recommendations contained herein are brought to
the attention of the project architect and engineer. The project architect or engineer should
incorporate such information and recommendations into the plans, and take the necessary steps to see
that the contractor and subcontractors carry out such recommendations in the field.
This firm does not practice or consult in the field of safety engineering. We do not direct the
contractor's operations, and we cannot be responsible for other than our own personnel on the site:
therefore, the safety of others is the responsibility of the contractor. The contractor should notify the
owner if he considers any of the recommended actions presented herein to be unsafe. This firm did
not provide any surveying services at the subject site and does not represent that the building
locations, contours, elevations, or slopes are accurately depicted on the plans.
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.
We sincerely appreciate this opportunity to be of service on this project. Should you have am
questions regarding this report, or require additional information, please contact our office.
Respectfully submitted.
.H.E. Soils Company, Inc.
J n P. Frey t
r ject Manager
JPF/JTR.jek
No. ROE 23164
John T. Reinhart, RCE 23464
Civil Engineer, Expires 12-31-11
ACCOMPANYING MAPS AND APPENDICES
Site Location Map - Figure 1 Appendix A - Laboratory Test Results
Density Test Location Map - Plates 1 and 2 Appendix B - Results of Compaction Tests
T.H.F. Sods Company. Inc W O. No W331001 23
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APPENDIX A
Laboratory Test Results
T.H E Soils Company, Inc. W. O. No 1444 100 1 23
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TABLE
Maximum Density/Optimum Moisture
Description
Lbs/Ft3
Moisture
1
Medium Brown Silty Sand (SM)
130.9
7.4
2
Grayish Brown Sandy Silt (ML)
129.5
8.5
3
Grayish Brown Clayey Silt (ML)
122.8
12.1
4
Olive Brown Sandy Silt (ML)
118.6
6.1
5
Gray Crushed Base
136.0
6.5
r.H.E Sails Company. Inc. N' 0 No 1444100123
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APPENDIX B
Results of Compaction Tests
I'M E. Soils Cmnpanp, Inc. W 0 No. 14441001 23
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TABLE
RESULTS OF COMPACTION TESTS— RIBBON CUTTER EXTENTION
Job No.: 14441001.23 Name: SANTIAGO ESTATES LLC.
Date: JUNE 2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Densitv
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plate 1
1
4/04/07
1093
7.8
113.0
86N -NG
1
Santiago Rd
2
"
1092
14.4
116.8
89N -NG
1
"
3
6/25/07
1094
6.0
127.1
97N
I
Ormsby Rd
4
1094
7.0
125.4
96N
I
"
5
4/05/07
1096
8.3
128.7
98N
1
6
1096
7.2
126.3
97N
1
"
7
1097
6.8
125.9
96N
I
8
4/06/07
BG
3.7
129.4
95N
2
9
BG
4.3
130.8
96N
2
"
SEE PLAN FOR TEST LOCATIONS
SC - Sand Cone ASTM D1556-64; DC -Drive Cylinder ASTM D2937-71; N-Nuelear ASTM 3017;
NG -Natural Ground +85% = Passing Test :-TEST FAILED, SEE RETEST
Job No.: 14441001.23
TABLE 11
RESULTS OF COMPACTION TESTS— DRY UTILITIES
Name: SANTIAGO ESTATES LLC.
Date: JUNE 2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Density
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plates 1 & 2
1
6/22/07
-1
10.1
112.1
90N
3
Santiago Rd
2
"
-1
12.0
110.0
90N
3
"
3
6/25/07
1099
5.5
133.1
98N
5
Ormsby Rd
4
SG
6.0
132.6
98N
5
"
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 "TEST FAILED, SEE RETEST
T.H.E. Soils Company, Inc W. 0 No. 14441001 23
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TABLE III
RESULTS OF COMPACTION TESTS— WATER LINE
Job No.: 14441001.23 Name: SANTIAGO ESTATES LLC.
Date: JUNE 2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Density
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plate 1
1
7/03/07
SG
13.7
118.3
96N
3
Santiago Rd
2
"
SG
11.6
119.8
98N
3
"
3
SG
8.4
119.2
91N
I
"
4
SG
7.8
118.2
90N
I
"
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 **TEST FAILED, SEE RETEST
Job No.: 14441001.23
TABLE IV
RESULTS OF COMPACTION TESTS — CURB & GUTTER
Name: SANTIAGO ESTATES - LLC
Date: JUNE2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Density
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plates 1 & 2
1
8/17/07
SG
9.1
117.9
90N
I
Ormsby Rd
2
SG
11.0
120.2
92N
I
"
3
SG
8.4
119.2
91N
I
"
4
SG
7.8
118.2
90N
I
"
5
SG
8.8
119.3
91N
I
Santiago Rd
6
SG
10.3
119.0
91N
I
7
SG
8.0
121.3
93N
I
8
SG
10.0
120.0
92N
1
9
SG
9.8
118.7
91N
1
"
10
SG
12.0
119.7
91N
I
"
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 **TEST FAILED, SEE RETEST
T H G. Soils Company, Inc W 0. No. 14441001.23
Job No.: 14441001.23
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TABLE V
RESULTS OF COMPACTION TESTS — DRIVE APPROACH/HANDICAP RAMP
Name: SANTIAGO ESTATES - LLC
Date: JUNE 2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Density
(PCF)
Relative
Compaction
(%
Soil
Type
Test Location
See Plates I & 2
1
10/11/07
SG
9.8
130.1
99N
1
Ormsby Rd
2
SG
7.3
123.9
95N
1
"
3
SG
7.0
127.2
97N
1
"
4
SG
8.7
123.8
95N
1
5
SG
7.6
125.6
96N
1
Santiago Rd
6
10/16/07
SG
7.7
123.8
95N
1
7
SG
7.5
127.4
97N
1
"
8
SG
7.5
125.5
96N
I
Handicap Ramp
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 **TEST FAILED, SEE RETEST
T H E Soils Company, Inc W. 0 No 14441001.23
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TABLE VI
RESULTS OF COMPACTION TESTS -STREET SUBGRADE
Job No.: 14441001.23 Name: SANTIAGO ESTATES - LLC
Date: JUNE2010
Test
No.
Test
Date
Elevation,
Depth
(Feet)
Moisture
Content
(%)
Unit Dry
Density
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plates I & 2
1
10/22/07
SG
7.9
127.6
97N
1
Ormsby Rd
2
SG
7.6
127.5
97N
I
"
3
SG
8.5
125.9
96N
I
"
4
SG
7.7
124.8
95N
1
Santiago Rd
5
Sc
7.9
125.6
96N
I
"
6
Sc
9.1
124.0
95N
I
7
SG
9.0
125.1
96N
1
8
SG
8.4
124.9
95N
I
"
9
SG
7.6
125.5
96N
I
"
10
SG
7.7
124.5
95N
1
"
II
SG
8.2
126.8
97N
1
"
12
SG
12.0
118.5
96N
3
"
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 **TEST FAILED, SEE RETEST
Job No.: 14441001.23
TABLE VII
RESULTS OF COMPACTION TESTS- STREET BASE GRADE
Name: SANTIAGO ESTATES - LLC
Date: JUNE 2010
Test
No.
Test
Date
Elevation
Depth
(Feet)
Moisture
Content
("/1)
Unit Dry
Density
(PCF)
Relative
Compaction
(%)
Soil
Type
Test Location
See Plates 1 & 2
1
10/26/07
BG
6.4
131.7
97N
5
Santiago Road
2
BG
6.8
130.6
96N
5
3
BG
6.2
131.5
97N
5
4
BG
6.6
135.0
99N
5
Ormsby Rd
5
BG
6.9
134.7
99N
5
6
BG
7.0
131.0
96N
5
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 **TEST FAILED, SEE RETEST
T I I E Soils Company, Inc W 0 No 14441001 23
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VANDENBERG CIVIL CONSULTING
31582 RAILROAD CANYON ROAD
CANYON LAKE, CALIFORNIA 92587
714 392-1219
June 1, 2010
ERIK HALTER
c/o SANTIAGO ESTATE, L.L.C.
5824 E. SANDSTONE CT.
ORANGE, CA 92869
949 542-8700 o
542-8702f
Subject: Certification of Rough Lines and Grades
Portion Lot 6, Parcel Mp Ns 6607
30270 Santiago Road
Certification of Street Improvement Construction
30270 Santiago Road and adjacent portion of Ormsby Road
City of Temecula, California
APN 945-080-009
Attention: Building Official
Mr. Halter,
Pursuant to your request, this letter has been prepared to document that the site has been
graded in substantial conformance to the approved rough grading plan prepared by
Vandenberg Civil Consulting and the street was built in substantial conformance with the
approved street improvement plans prepared by Vandenberg Civil Consulting,
In the event of any additional grading to be performed in the future, the property owner
should only do so with plans approved by the City of Temecula.
The opportunity to be of service is appreciated. Should questions or comments arise
pertaining to this document, please contact us, in writing, for clarification.
Respectfully Submitted, - "~
((rw
OM"DEUMcxe3MMMRobert Federighi, RCE 30000 �w9=1Civil Engineer ,
10
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