HomeMy WebLinkAboutCT 01-02; CALAVERA HILLS VILLAGE K; INTERIM REPORT OF ROUGH (MASS) GRADING; 2003-06-25ocri'
Geotechnical • Geologic • Environmental
5741 Palmer Way • Carlsbad California 92008 • (760) 438m3155 • FAX (760) 931 0915
June 25,. 2003 .. .
WO. 3459-61-SC
Calavera Hills II, LLC
2727 Hoover Avenue......' . . . . . .. . '. . . . .. . .
National City, California 91950
Attention Ms Diane Erickson
Subject: . Interim Report of Rough (Mass) Grading, Model Lots 6, 7, 8, and Phase 1 .
Production, Lots 9, .10, and 69 through 82, Calavera Hills II, Village K, . .
Carlsbad Tract 01-02, City of Carlsbad, San Diego County, California
Dear Mr. Mitchell
In accordance with your request and authorization, GeoSoils, Inc. (GSl) is presenting this•,..
interim report of rough grading. Grading and processing Of originalz ground within the
subject lots was observed and selectively tested .by a representative of GSl during the
earthwork phase of development for the subject. property. The scope of our services
. . .. includes geotechnicalobservations during site grading, field density and laboratory testing,
and preparation of this summary letter.
The work performed to date is in general conformance with the recommendations .
contained in our referenced report (GSl, 1999), and with the grading ordinance of the City.
of Carlsbad, California. Field testing. Indicates that fills placed under the purview of this
report have been compacted to a minimum 90 percent relative compaction. Laboratory • . .. . -
testing performed to date indicates that the subject lots have a very low to low expansion
potential (Expansion Index [E.l.] less than 50), in accordance with Table '1871-13 of the
Uniform Building Códe.(UBC, 1997). Testing also indicates that sulfate exposure on all lots
is negligible, in accordance with Table 19-A-4 of the UBC (1997). A final compaction report
of rough grading and improvements construction, including observations and testing results.•
for rough grading, utilities, and driveway/parking areas, is forthcoming
- . .The conclusions and recommendations presented herein-are professional opinions. These .
opinions.have been derived in accordance with current standards of practice and no
warranty is expressed or implied. Standards of practice are subject to change with -time. •
GSl assumes no responsibility or liability for work, testing, or-recommendations performed
or provided by others, their. inaction, or work performed without the benefit of geotechnical •..
observation and testing services by GSl
GeoSOils, Inc.