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Home My WebLink AboutCT 04-26; ROBERTSON RANCH PA 16, 17 & 18; GEOTECHNICAL UPDATES; 2009-06-16I -ro4 -2ç Geotechnical . Geologic. Coastal . Environmental 5741 Palmer Way • Carlsbad, California 92010 • (760) 438-3155 • FAX (760) 931-0915 www.geosoilsinc.com Revised June 16, 2009 W.O. 5353-B 1 -SC Brookfield Homes 12865 Pointe Del Mar, Suite 200 Del Mar, California 92014 Attention: Ms. Teri McHugh Subject: Geotechnical Update for Phase 2 Production Lots 280 Through 289 of Planning Area 18, Robertson Ranch, East Village, Carlsbad Tract 04-26, Drawing 453-813, City of Carlsbad, San Diego County, California References: 1. "Report of Rough Grading, Planning Area 18 of Robertson Ranch, East Village (Lots 195 through 304, and 309) Carlsbad Tract 04-26, Drawing 453-8A, Carlsbad, San Diego County, California," W.O. 5353-B1-SC, dated September 17, 2008. 2. "Precise Grading Plans for: The Foothills at Carlsbad, Robertson Ranch PA 18, Phase 2 Lots 280-289" P.U.D. 06-014A, C.T. 04726, job No. 01140, dated June 8, 2009, by O'Day Consultants. Dear Ms. McHugh: In accordance with your request, GeoSoils, Inc. (GSI) has reviewed the referenced report and plans with respect to as-graded site conditions and has prepared this update report. Grading and processing of original ground within the subject building pads was observed and selectively tested by a representative of GSI during the earthwork phase of development for the subject property. Based on our observations and testing, the subject lots are considered suitable for their intended residential use. Geotechnical observations and testing completed by this office during site grading are summarized in the referenced GSI report. As of this date, the site has not changed significantly since the completion of grading and the issuance of the referenced GSI report; thus, the findings, conclusions, and recommendations presented in that report are generally considered valid and applicable with respect to the construction and development of the subject building pads. Based on the duration of time following pad completion, pre-wetting is recommended, as indicated in the referenced GSI report. Some surficial processing may also be necessary, owing to the passage of time, erosion, weathering, etc.. David W. Skelly Civil Engineer, RCE 4 LIMITATIONS Inasmuch as our study is based upon our review, engineering analyses, and laboratory data, these conclusions and recommendations are professional opinions. These opinions have been derived in accordance with current standards of practice, and no warranty is express or implied. Standards of practice are subject to change with time. GSI assumes no responsibility or liability for work or testing performed by others, or their inaction, or work performed when GSI is not requested to be onsite to evaluate ,if our recommendations have been properly implemented. Use of this report constitutes an agreement and consent by the User to all the limitations outlined above, notwithstanding any other agreements that may be in place. In addition, this report may be subject to review by the controlling authorities. The opportunity to be of service is greatly appreciated. If you have any questions, please do not hesitate to call our office. Respectfully submitted NAL o.1934' Certified ) Engineering / GeologIst, .. Robert G. Crisman Engineering Geolog RGC/DWS/JPF/jh Distribution (4) Addressee GeoSoils, Inc. Brookfield Homes W.O. 5353-B1-SC Production Lots Ph. 2, PA-18, Robertson Ranch Revised June 16, 2009 File: e:\wp9\5300\5353b1 .pal8.rgu3 Page 2 GeoSoils, Inc. Geotechnical . Geologió. Coastal . Environmental 5741 Palmer Way • Carlsbad, California 92010 • (760) 438-3155 • FAX (760) 931-0915 • www.geosoilsinc.com June 15, 2009 W.O. 5353-B1-SC Brookfield Homes. 12865 Pointe Del Mar, Suite 200 Del Mar, California 92014 Attention: Ms. Teri McHugh Subject: GeotechnicI. Update for Phase 1 Production Lots 275 Through 279, and I290 Through 293 of Planning Area 18, Robertson Ranch, East Village, Carlsbad:Tract 04-26, Drawing453-813, City of Carlsbad,San:Diego County, California. : References: .1. "Report of Rough Grading, Planning Area 18 of Robertson Ranch, East Village (Loth 195 through 304, and 309) Carlsbad Tract 04-26, Drawing 453-8A, Carlsbad, San Diego County, California," W.O. 5353-131SC, dated September 17, 2008. t2 "Precise Grading Plans for: The Foothills at Carlsbad, Robertson Ranch PA 18, Phase 1 Lots 275-279, 290-293" P.U.D 06-014A, C.T. 04-26, job No. 01140, dated June 8, 2009, by 0'Day Consultants Dear'Ms. McHugh: In accordance with your request, GeoSoils, Inc. (GSI) has reviewed the referenced report and plans With respect to as-graded site conditions and has prepared this update report. Grading and processing of original ground within the subject building pads was observed and,. selectively tested by a epresentative of "GSI . during the earthwork phase of development for the subject property. Based On our observations and testing, the subject lots are considered suitable for thir intended residential ue. Geotechnical observatiOns ;and testing completed by this office during site grading are summarized in the rferenced GSI report. As ofthis date, the site has not changed significantly since the completion of. grading and the issuance of the referenced GSI report; thus, the findings; conclusions, and recommendations presented in that report are generally considered valid and àjplicable with respect to the construction and development of the subject büildingpads. Based on the duration of time following pad completion, prewetting is recommended, as indicated in the referenced GSI report. Some surficial processing may,also be necessary, owing to the passage Of time, erosion, weathering, etc. LIMITATIONS Inasmuch as our study is based upon our review, engineering analyses, and laboratory data, these conclusions and recommendations are professional opinions. These opinions have been derived in accordance with current standards of practice, and no warranty is express or implied. Standards of practice are subject to change with time. GSI assumes no responsibility or liability for work or testing performed by others, or their inaction, or work performed when GSI is not requested to be onsite to evaluate if our recommendations have been properly implemented. Use of this report constitutes an agreement and consent by the user to all the limitations outlined above, notwithstanding any other agreements that may be in place... In addition, this report may be subject to review by the controlling authorities. The opportunity to be of service is greatly appreciated. If you have any questions, please do not hesitate to call our office. Respectfully su G. . No. 1934 G Is , Inc. Certified Engineering ologist Robert G Crismar 'OF C mftO/ Engineering GeologE1934 RGC/DWS/J PF/j h David W. Skelly Civil Engineer, RCE 47 '?ckOFESs,oN RCE47857 CIVIL 0 c P A%-*(j zI1 Distribution: (4) Addressee Brookfield Homes W. 0. 5353-B1-SC Production Lots Ph. 1, PA-18, Robertson Ranch June 15, 2009 FiIe:e:\wp9\5300\5353b1 .pal8.gu2 Page 2 GeoSoils, Inc.