HomeMy WebLinkAboutTract Map 3552 Lot 24 Compaction Report
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~()4()1fM"" CONSULTING CORPORATION
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REPORT
PROJECT NO:
0201-1677-C
DATE:
May 20, 2002
I)OOJ~C:T iIT~:
44217 La paz Street
Temecu1a, California
LEGAL DESCRIPTION:
Assessor's Parcel Number
922-160-016-9
Riverside County
PREPARED FOR:
Richard and Corina Williams
29592 Corte Copa
Temecula, California 92592-2032
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RECEn/ED
MAY 2 Ii ?nn?
CITY OF TEMECULA
ENGINEERING DEPARTMENT
PMB C-233, 16776 Lakeshore Dr, Lake Elsinore Ca 92530, Tel (909) 245-2200 Fax (909) 245-4211
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0201-1677-C
i44C4()1fM .,.,
CONSULTING CORPORATION
May 20, 2002
Richard and Corina Williams
29592 Corte Copa
Temecula, California 92592-2032
SUBJECT: COMPACTION TEST RESULTS FOR THE SITE LOCATED AT 44217 LA PAZ
STREET, TEMECULA, ASSESSOR'S PARCEL NUMBER 922-160-016-9,
RlVERSIDE COUNTY, CALIFORNIA.
. Dear Mr. & Mrs. Williams:
In accordance with your authorization, we have provided limited compaction testing services on
the locations shown on the Plot Plan for the above subject site.
This report presents a summary of the test results and Plot Plan indicating the approximate
location and time of the field density tests. The client and/or his contractor(s) are the responsible
parties for compaction efforts, uniformity, consistency, and implementation of all recommendations
. during the life of the project. To the best of our knowledge, the work covered in our authorization is in
,accordance with the applicable recommendations, and any variances not approved in writing by this
firm would nullify and void this report for any use.
This report is valid for one year from the date of issuance, and must not be used without further
evaluation by this firm. By incorporating the entire conclusion and the limitations herein, we make no
other 'presentations and/or warranties, expressed, or implied by this report, being the entire scope of
authorized services performed.
We appreciate this opportunity to be of service. If you have any questions regarding this report,
or if we can be of further assistance, please do not hesitate to contact our office at your convenience.
Respectfully submitted,
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Enclosures
PMB C-233, 16776 Lakeshore Dr, Lake Elsinore Ca 92530, Tel (909) 245-2200 Fax (909) 245-421 t
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1. SITE PREPARATION
A. All vegetation, debris, and other material observed and considered to be improper for fill
purposes, were removed from the proposed construction site.
B. The areas to receive competent fill were scarified to a minimum depth of 12 inches and
re-compacted to a minimum of90 percent of the maximum dry density.
2, FILL PROCEDURE
A. Fill materials were placed in horizontal layers a maximum of 8 inches in depth, and
were compacted.
B. Fill materials were mixed to obtain consistency.
C. Field .testing began during scarification. To assure consistency and uniformity of the
work performed in compliance with the project requirements, testing for compaction
was performed randomly or as requested by the contractor.
3. COMPACTION TESTING
A. Field ,density tests were taken by Sand Cone or Nuclear Gauge Method in accordance
with ASTM DES: D-1556-82.
B. Field density 1ests were taken at the approximate locations as shown on the
Approximate field Densiiy Test Location Map_
C. Maximum dry densiiy was obtained by the laboratory procedure ASTM DES: D-1557-
78.
D. Test results represent our findings at the time of testing and location.
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0201-1677-C
4. TRANSITION LOT
A. All structural areas are removed and re-compacted to a minimum depth of 36 inches.
B. Soil is medium expansive in nature.
C. Foundation to be reinforced with a minimum of two # 4 rebar on top and bottom.
D. Differential settlement is anticipated to be under 1/2 inch.
E. Type II Cement may be used.
5. FOUNDATION DESIGN
A strip and spread footing foundation system should provide an adequate foundation for
onei and t\vo-story buildings in this site. All exterior footings should be founded a minimum of
24 inches below adjacent finished grade for two-story buildings and 12 inches for one-story
buildings. Interior footings may be founded a minimum of 18 inches below finished grade for
t\vo-story and 12 inches for one-story buildings, When the footings are founded properly
cOTl)pacted fill or dense bedrock, an allowable bearing capacity of 1500 psf for 12 inch wide
footings is acceptable for dead plus live load. This value may be increased by one-third for short
term wind and seismic loading conditions.
When foundations are placed in natural soils, no cobbles over 6 inches should be left
within the base of 1he foundation. Two No. 4 bars on top and on bottom is recommended as
minimum design for one and 1wo-story buildings.
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0201-1677-C
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The feasibility of the proposed development depends on the final project plan and
strict adherence to the grading and maintenance recommendations.
The findings in this report are based upon data obtained from separate sampling
locations at the time within the limited scope of our testing services, on work performed
by the contractor or others responsible for uniformity and consistency of the work. Any
conditions that appear different or inconsistent with the areas tested must be evaluated by
this firm. The test result represents the results at the location, at that time only.
To the best of my knowledge, the work within the scope of our testing services is
completed in ,accordance with the Uniform Building Code and local regulatory's.
This report or portions thereof that are provided to contractors or others for
preliminary information only, should be used as such, and are subject to reevaluation,
and changes should be expected during the life of the development.
This report and it's contents are not intended or represented to be suitable for re-
use of extensions or modifications of the project, or for use on any other project. Any
variance from our prescribed requirements and recommendations would nullify this
report, consti1uting indemnification of this firm, it's employees, and representatives from
any and all liabilities and obligations toward any party. Furthermore, this report is valid
for only one year from the date of issuance.
Any deviation, for any period of time, must be approved by 1his firm in writing.
Periodic or minimum yearly inspection of any project with any deviation from our
expressed requirement herein, is required to be performed by a soil engineer. Any
lmderground leaks, flooding, excavation, and re-grading must be reported and/or
performed under the supervision, testing, or written approval of a soil engineer.
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This office will be further available to assist in assuring correct interpretation of
this report's conclusions and recommendations.
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0201-1677-C
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This report is issued with the understanding that it is the responsibility of the
owner to ensure that the information and recommendations contained herein are called
to the attention of all parties concemed, including but not limited to: the future owners,
agents, designers, and contractors, and that necessary steps are taken to carry out such
recommendations under any and all circumstances and conditions.
The interpretation, conclusions, and recommendations contained in this report
are based on soil conditions as observed at the time and test locations or field
observation, and as in most projects, may not necessarily represent any other areas at
any other time. No representation of any kind is made to the quality, uniformity,
chemical characteristic of site material, also suitability, merchantability, and/or cost of
the final project plan. Furthermore, other conditions that may be encountered or
changes in the conditions of the property can occur with the passage of lime, whether it
be 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, the broadening of knowledge, or change of1he plan. Accordingly, the
findings of this report may be invalidated wholly or partially by any change, for any
reason. Furthermore, this report is subject to review and revision as changed conditions
are iden1ified and a written approval is requested for any use of this report beyond one
year, to be negotiated by this firm. This firm may discontinue it's service at any time
for nonpayment. Furthermore, the use of this report by any party constitutes
indemnification of the staff, representatives, and subcontractors of this firm, and
acceptance of the terms and conditions of the "client's" authorization at all times, by all
parties. Furthermore, any and all mitigative measures concerning this report should be
performed under the supervision of this firm.
The use of this report is subject to a final review and approval of the project
plan, building location, and footing inspection by this firm in order to assist in assuring
correct interpretation of this report's recommendations for use in applicable sections.
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0201-1677-C
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1. Any additional grading must be approved and tested by this firm.
2. : Ponding of water should not be allowed anywhere on the building pad. A minimum
,gradient of 1.0 percent should be maintained away from the foundation and slopes at all
,times.
3. The faces of cut and fill slopes should always be maintained against erosion, either by
,effective planting, or by the installation of non-erosive materials when necessary.
4. Prior to concrete pour, the footing trenches should be inspected by this firm.
5. All grading recommendations and building ordinances must be observed and maintained
at all times.
6. All utility trench backfills must be compacted, under supervision, to a minimum of 90.0
,percent of the maximum densiiy.
7. All trenching and backfill compaction must be performed and tested prior to foundation
pour.
8. Areas within "5.0 feet of the foundation must be kept dry with no trees or any other
vegetation growth allowed.
9, All retaining wall backfill must be compacted to a minimum of 90.0 percent of the
'maximum densiiy.
10. : The contractor and/or developer is responsible for the above, and uniformity of the work
performed including all other subsequent work.
11. Foundation within landscaping area must be at least 18 inches deep and extend to
minimum 5.0 feet beyond the landscaping area.
*Any variation not approved in writing would nullify this report for any use, under any
and all circumstances.
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DENSITY TEST SUMMARY SHEET
DATE TEST # ELEVATION MAX CURVE FIELD DENSITY MOISTURE % REL COMP COMMENTS
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I 1 113.8
5/13. Bottom 125.9 13,9 90.4% Bottom
5/14 2 Bottom 125.9 119.6 11.8 95.0% Bottom
5/14 3 Bottom 125.9 115.0 9.8 91.3% Bottom
5/14 4 +1.5' 125.9 116.9 8.0 92.9%
5115 5 +1.5' 125.9 113.1 12.0 89.8% Fail
5/15 6 +2.5' 125.9 118.5 10.0 94.1% Retest # 5
5/15 7 +2.5' 125.9 118.9 9.4 94.4%
5/16 8 +3.0' 125.9 115.2 9.3 91.5%
5/16 9 F.G. 125.9 118.1 7.8 93.8%
5/17 10 F.G. 125.9 114.2 8.9 90.7%
5117 II F.G. 125.9 114.3 9.2 90.8%
5/17 12 F.G. 125.9 116.4 7.0 92.5%
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0201-1677-C
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0201-1677-C
~IMUM ()Il~ ()~,...,...." T~'T IJ~'ULT'
SOIL SOIL
TYPE DESCRIPTION
MAXIMUM
DRY DENSITY
(PCF)
OPTIMUM
MOISTURE
(%)
A Silty sand with minor gravel
and trace of clay
125.9
13.9
NOTE:
MAXIMUM DRY DENSITY WAS ACQUIRED THROUGH COMPACTION
METHOD ASTM DES: - 1557 - 78, METHOD A.
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1. Concrete used for residential concrete slabs must achieve a minimum compression strength as
recommended or as requested by local regulatory agencies.
2. The concrete should have a minimum cement content of 5.2 sacks/cubic yard.
3. The maximum water content should be 7.0 gallons/cubic yard in order to maintain an
acceptable water to cement ratio.
4. Maximum slump at which the concrete should be placed should not exceed more than 6.0
inches.
5. Maximum size of aggregate for concrete should be between 3/4 to I 1/2 inches.
6. Please note that every gallon of water added to the concrete above the design mix, will result in
the loss of 1.0 inch slump and 200 psi in compression strength.
7. Delivery time. including unloading of concrete shall not exceed 90 minutes.
8. Slabs must be cured using Hunt's curing compound, or any approved equivalent curing method.
9. Reinforcement should be placed within 3.0 inches from the bottom or according to the
specifications.
10. Control joints should be placed typically on 10.0 foot center for 4.0 inch nominal slabs1in order
to reduce excessive cracking. Formula for joint spacing = 2.5 x slab thickness.
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0201-1677-C
11. Concrete shall not be placed at temperatures exceeding the recommended limits (50 degrees F
winter, 100 degrees F summer).
12. The sub-grade should be relatively moist prior to placing concrete slabs-on-grade.
13. Daily information must be kept on file containing concrete tickets, time of pour, temperature,
and other factors effecting concrete placement and finishing.
14. If slabs are poured at different time, construction joints are necessary.
15. All fluflY loose material generated by trenching must be removed or re-compacted properly
lmder the supervision of this firm.
16. Excessive moisture should not be allowed within 5.0 feet of any concrete foundation and slab
area, unless proper design factors have been introduced into consideration.
17. Any additional specifications concerning curing of the concrete must be provided by the
concrete ready mix company or the supplier.
13. It is the responsibility of the owner, the contractor, and/or the supplier to inform the soil
engineer of any unsuitable conditions prior to placing concrete. All such conditions must be
reported in writing for additional recommendations or corrections.
19. Prior to concrete pour, the contractor, owner, and builder must ensure all recommendations
provided are completely carried out and approved by this firm.
20. The owner and his contractor are the responsible parties to ensure uniformity of the structural
area to be used.
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TITLE:
CONSTRUCTION SET-BACK
REQUIREMDITS
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