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HomeMy WebLinkAbout; Hart Apartments; Interim Report of Rough (Mass) Grading; 2004-11-29Geotechnical • Geologic * Environmental 5741 Palmer Way • Carlsbad, California 92008 • (760)438-3155 • FAX (760) 931-0915 November 29, 2004 W.O. 4001-B-SC Mr. Robert Hart 4016 Garfield Street Carlsbad, California 92008 Subject: Interim Report of Rough (Mass) Grading, Hart Apartments, 4016 Garfield Street, Carlsbad, San Diego County, California Dear Mr. Hart: In accordance with your request and authorization, GeoSoils, Inc. (GSI) is presenting this interim report of rough grading at the subject site. Grading and processing of original ground, within the property boundaries, was obsen/ed and selectively tested by a representative of GSI on a part-time basis during the earthwork phase of development. The scope of this report includes a review of site conditions, including field density and laboratory testing data, and preparation of this summary letter. The work performed to date Is in general conformance with the recommendations contained in our referenced reports (GSI, 2004 and 2003), and with the grading ordinance of the City of Carlsbad, San Diego County. California. Field testing indicates that fills placed under the purview ofthis report have been compacted to a minimum 90 percent relative compaction. Laboratory testing generally indicates that soils, exposed at finish grade, are generally very low expansive (Expansion Index [E.l.] = 0 to 20), in general accordance with Table 18-1-B of the Uniform Building Code {[UBC], International Conference of Building Officials [ICBO], 2001 and 1997). Testing for sulfate exposure and saturated resistivity have not been completed to date. GSI will provide the laboratory test results when the data is made available. A final compaction report of rough grading, including obsen/ations and testing results performed during rough grading, as well as final foundation design criteria, 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. GSI assumes no responsibility or liability for work, testing, or recommendations performed or provided by others. The opportunity to be of service is greatly appreciated. If you have any questions, please do not hesitate to contact any of the undersigned. Respectfully submitted, GeoSoils, Inc. Ryan Boehmer Project Geologist hn P. Franklin gineering Geologist'; RB/DWS/JPF/jk Attachment: Appendix - References Distribution: (4) Addressee / David W. Skelly Civil Engineer, RCE Mr. Robert Hart 4016 Garfield Street. Carlsbad File:e:\wp9\4000\4001 b.iro W.O. 4001-B-SC November 29, 2004 Page 2 GeoSoils, Inc. APPENDIX REFERENCES GeoSoils, Inc., 2004, Geotechnical review of grading plans, 4016 Garfield Street, Carlsbad, San Diego County, California, W.O. 4001-A1-SC, dated July 22. , 2003, Preliminary geotechnical evaluation, 4016 Garfield Street, Carlsbad, San Diego County California, W.O. 4001-A-SC, dated August 6. International Conference of Building Officials, 2001, California buiiding code. Caiifornia code of regulations title 24, part 2, volume 1 and 2. , 1997, Uniform building code. Volume 2. GeoSoils, Inc.