003270 (SFD) Geotechnical Reportrl OBuena Engineers, Inc.
WN W7 AN EARTH SYSTEMS, INC. COMPANY
79-811 COUNTRY CLUB DRIVE, SUITE #4 • BERMUDA DUNES, CALIFORNIA 92201 • (619) 345-1588
November 4, 1987
T.C. Yaru Construction
72-935 Amber
Palm Desert, CA 92260
Project: #7 kR8i51710jS_aguaroir
La Quinta, CA.
Subject: Report of Field Densities
Single Family Residences
87-0172-P1
87-11-701
RECEIVED
NOV 0 9 1987
CITY OF LA QUINTA
PUNNING & DEVELOPMENT DEPT.
On September 14, 1987, a representative of our firm performed density
tests in the fill for the building pads on the above referenced project. Tests
were performed at random locations i n accordance with ASTM D 2922-81
and ASTM D 3017-78 Nuclear Density Test Procedure. Testing was
performed as per authorization of T.0 Yaru.
The estimated location of the test are presented on the attached plan with
their results being summarized on the attached test report sheet. A total of
four (4) density test were performed. Tests results indicate that a
minimum of ninety (90) percent relative compaction has been obtained
within the areas tested. The maximum density -optimum moisture were
determined in the laboratory in accordance with ASTM D 1557-78, Method A
or C.
Test results are as follows:
Soil Description USCS MaximumDensity-ODtimumMoisture
Gray slightly silty
very fine to fine sand
with traces of gravel SM
VENTURA
(805) 642-6727
109.2 pcf 12.9%
LANCASTER
(805) 948-7538
BAKERSFIELD SANTA BARBARA BERMUDA DUNES SAN LUIS OBISPO
(805) 327-5150 (805) 966-9912 (619) 345-1588 (805) 544-6187
November 4, 1987 -2- 87=0172-P 1
87-11-701
1. The two lots are located at 78-685 and 78-570 Saquaro in the City of
La Quinta, California.
2. Prior to our arrival at the sites, the fill had been placed and
compacted.
3. The purpose of testing was to observe compliance with the minimum
requirements of the city of La Quinta, California.
Limitations
This firm did not perform a soils investigation, did not conduct any tests to
determine the general condition, adequacy or stability of soils on the
property, nor did it observe the backfilling or compacting operations which
were already completed at the itme our personnel were called to the site.
The only services performed were the specififc moisture and density tests
summarized in this report. These test results provide only limited
information about the surface materials observed at the locations and
depths tested and cannot be relied upon for information about subsurface
conditions or compaction, or to determine the appropriateness of any design
or construction of improvements on the site. No inspection was made of the
contractor's work and no guarantee or warranty of that work in backfilling
or compaction of the soils on the site is made or implied.
If there are any questions, please do not hesitate to contact this office.
Respectfully submitted,
BUENA EN61 NEE S, INC.
1
Phillip D. Clanton
Sr. Technician
PDC/JRV/mea
Reviewed and
G7
RU W
Joseph R. Menu
Civil Engineer
Copies: 2 - T. C. Yaru Construction
2 - City of La Quinta
1 -P. S.
2 - VTA file
BUENA ENGINEERS, INC.
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CONTRACTOR:
ADDRESS:
REPORT OF RELATIVE COMPACTIONS
Job No. B7 -0172-P 1
DATE: November 4, 1987 Report No. 87-11-701
JOB & LOCATION: La Qulnla, CA
TEST NO.
DATE
TESTED
DESCRIPTION
78-685 Saquaro
%MOISTURE
IN PLACE
DRY DENSITY
IN PLACE
RELATIVE
COMPACTION
MA%INIUM
DENSITY
1
9-14-87
Per Plan FG
12.9
103.4
95
109.2
2
9-14-87
Per Plan 1.0 BFG
10.4
103.4
95
109.2
78-570 Saquaro
3
9-14-871
Per Plan 1.0 BFG
9.3
104.9
96
109.2
4
9-14-871
Per Plan FG
13.7
103.5
95
109.2
FG - Finish Grade
BFG - Below Finish Grade
i
I
WE CERTIFY THAT THESE TESTS WERE PERFORMED IN CONFORMANCE WITH
COPIES:
BUENA ENGINEERS, INC.
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