1999-5961 G Street Address
Category Serial #
Name Description
Plan ck. # Year
MAY 0
GEOTECHNICAL INVESTIGATION
FERNANDEZ RESIDENCE
1434 RUBENSTEIN AVE.
CARDIFF, CALIFORNIA
PREPARED FOR
RONALD AND APRIL FERNANDEZ
1- May -99 _a
�" T H
Kevin Thunder, PE
1805 Westminster Dr. - –�—
Cardiff, CA 92007 No. 11
(760)436 -8951 xp G3 "
OF C A k� ����
Kevin Th under PE 1805 Westminster Drive
Cardiff, CA 92007
May 2, 1999
Ron and April Fernandez
1434 Rubenstein Ave.
Cardiff, CA 92007
Re: Fernandez Residence
1434 Rubenstein Ave.
Mr. and Mrs. Fernandez,
I have performed a geotechnical investigation for the construction of the above referenced residence.
This investigation has determined the soils on the project to be a composed of a topsoil layer of
compact, clayey, fine to medium sand (SM -SC) over undisturbed, dense, slightly clayey, fine to
medium sand (SP -SC). No ground water was encountered in the excavations or observed in any lower
slopes on the site.
The upper 1.5' of the native topsoil under the building foot print should be either removed or ripped,
processed to approximately 2% over moisture content and compacted to a minimum of 90% relative
compaction. Any fill on the site should also be processed to approximately 2% over moisture content
and compacted to a minimum of 90% relative compaction.
A maximum bearing capacity of 1500 psf can be used for design of footings. Expansiveness of the soil
on this project can be considered to be negligible. Footings should be designed with a minimum depth
of 12 inches and reinforced with a minimum of two #4 reinforcing bars, one at top and one at bottom.
Floor slabs should be a minimum of 3 inches thick and reinforced with a minimum of 6x6 -10x10
welded wire fabric or #3 reinforcing bars at a maximum 2' -0" spacing each way.
Due to the strength and negligible expansiveness of the on site soils, differential settlement should be
Less than ' /..inch.
�o QROVESS /ON's!
G. T/��� ���
Sincerely,
C-
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Kevin Thunder, PE
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