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HomeMy WebLinkAboutCT 04-02; LA COSTA RIDGE NEIGHBORHOODS 2.1 & 2.2; AS-GRADED GEOTECHNICAL CONDITIONS OF PHASE 7 BUILDING PADS; 2006-02-01CT O4-o2 4 Leighton and Associates, Inc. A LEIGHTON GROUP COMPANY February 1, 2006 Project No. 0418 10-001 To: Pulte Homes 5993 Avenida Encinitas, Suite 101 Carlsbad, California 92008-7338 Attention: Ms. Anna Scott Subject: As-Graded Geotechnical Conditions of Phase 7 Building Pads, Lots 55 throug h 6 1 , La Costa Ridge, Carlsbad, California References: Geocon, 2005a, Form of Geotechnical Certification Letter, La Costa Ridge, dat e d October 24, 2005 2005b, Final Report of Testing and Observation Services Performed During Villages of La Costa, Site Grading, Neighborhoods 2.1 and 2.2, Carls b a d , California, Project No. 07290-52-01, dated November 17, 2005 Hunsaker, 2005, Precise Grading Plans for La Costa Ridge, Neighborhoods 2. 1 and 2.2, Carlsbad, received January 16, 2005, Sheets 0 through 15 Leighton and Associates, Inc., 2005, Geotechnical Update Report and Foundat i o n Design Recommendations, La Costa Ridge, Neighborhoods 2.1 and 2.2, Lots I - 90, Tract 04-02, Carlsbad, California, Project No. 0408 10-001, dated December 5, 2005 In accordance with your request, we have prepared this letter summarizi n g t h e a s - g r a d e d geotechnical conditions of Phase 7 building pads, Lots 55 through 61 for La Costa Ridge residential development. The site was previously graded under the observ a t i o n a n d t e s t i n g services of Geocon, as documented in the referenced report above. The fina l g r a d i n g f o r t h e subject building pads has been completed, however, utility earthwork an d s t r e e t g r a d i n g operations for the remainder of the site are ongoing as of the date of th i s l e t t e r . B a s e d o n observations made during the site visit on December 6, 2005, the condition of the building pads appear to have been graded in accordance with currently accepted standards an d a r e s u i t a b l e t o receive the proposed improvements. 3934 Murphy Canyon Road, Suite B205 San Diego, CA 92123-4425 858.292.8030 a Fax 858.292.0771 m wwwieightongeo.com - 041810-001 If you have any questions regarding our letter, please do not hesita t e t o c o n t a c t t h i s o f f i c e . W e appreciate this opportunity to be of service. Respectfully submitted, LEIGHTON AND ASSOCIATES, INC. Mike Jensen Project Geologist (I)( No4p (DI Fyn AoP A/". elf — William D. Olson, RCE 45283 Senior Project Engineer Distribution: (2) Addressee (1) Pulte Homes Attention: Mr. Travis Arnold -2- Leighton