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HomeMy WebLinkAboutCT 83-19; CALAVERA HILLS VILLAGE T; SIDE YARD DRAINAGE DETAILS; 1999-05-07Geotechnical • Geologic • Environmental 5741 Palmer Way • Carlsbad. California 92008 • (760) 438-31!5 • FAX (760) 931 -09 15 May 7, 1999 W.O. 2634-C-SC Brookfield Homes of San Diego 12865 Pointe Del Mar, Suite 200 Del Mar, California 92014 Attention Ms. Carol Ford Subject: Side Yard Drainage Details, Sheffield at Calavera Hills (Village T South), Carlsbad, California Reference: "Report of Rough Grading, Calavera Hills, Village rn South, Lots 1 Through 162, Carlsbad Tract 83-19, City of Carlsbad, California," W.O. 2393-B-5C, dated November 20, 1998, by GeoSoils, Inc. Dear Ms. Ford, At the request of Ms. Patti Blount, with Brookfield Homes, GeoSoils, Inc. (GSl) has evaluated a proposed reduction of the sideyard drainage swale distance from approximately 5 feet to approximately 3 feet to the building footprint. Based on our evaluation, the minimum distance from a given structure to the flow line of the side yard drainage swale may be reduced from 5 feet, per City Standard GS-1 5, to a minimum of 3 feet. Due to the decreased setback from structure to drainage swale, footings for adjacent structures should maintain a minimum embedment equivalent to 12 inches below the flow line elevation for any adjacent drainage swale. Trenching for any utilities adjacent to a footing should remain above a 1:1 projection downward from the outside bottom edge of the footing. All trench backfill should be compacted to a minimum 90 percent relative compaction. 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. GeoSoils, Inc. 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 concerning this report or if we may be of further assistance, please do not hesitate to contact any of the undersigned. Respectfully submitted, GeoSolls, Inc. ED a ' 4101 Robert G. Crisman Ibert R. Kleist Engineering Geologist, CE (RGC/ARKIJPF/mo No. I eotechnical Engineer, No. 476 Exp. 06-30-01 Distribution: (4) )* OF C Brookfield Homes W.O. 2634-C-SC Sheffield at Calavora Hills May 7, 1999 File: e;\wp7\2aOO2634c.syd Page 2 GeoSoI(s, Inc. .