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ov/,�ea- NEIL O. AI`'-`ERSON & ASSOCIATES, INC. <br /> GEOTECHNICAL•�VIRONMENTAL•GROUNDWATER•INSPECTIONS,�STING•LABORATORY SERVICESCORPORATE OFFICE SACRAMENTO OFFICE <br /> 22 Houston Lane 4229 Northgate Boulevard,Suite 3 <br /> CHICO (530)891-6304 Lodi,California 95240 Sacramento,California 95834 <br /> STOCKTON 209)472-1091 929-9267 <br /> RANCHO CORDOVA (916)631-4455 FAX)(209)333-8303 FAX (916)929-9269 <br /> September 11, 2002 <br /> Our Job No. LGO 1-191 <br /> Mr. Danny Burgess <br /> 2001 Oxford Way <br /> Stockton, CA 95204 <br /> Subject: Engineered Septic System Revision <br /> 3734 W. Country Club Blvd. <br /> Stockton, California <br /> Dear Mr. Burgess, <br /> Per our conversation on September 5, 2002, we are providing you with a revised drawing <br /> for the subject septic system. Our office understands you desire to change the width of the septic <br /> system filter bed from 28 feet to 26 feet. The change in width is necessary so that the proposed <br /> system will fit into a confined area due to the house moving 2 feet south. The revised <br /> calculation$ and drawings are attached to this letter. <br /> The absorption area for the filter bed was originally determined to be 2,757 ft' (100 ft x <br /> 28 ft area) which includes a 1.5 factor of safety for spill over protection. By reducing the filter <br /> bed width from 28 feet to 26 feet, the total bed area becomes 2,600 ft' (100 ft x 26 ft). The factor <br /> of safety for the 2,600 ft' filter bed is 1.4. The proposed change in width from 28 feet to 26 feet <br /> is acceptable to our office. Our office will require the distribution system of the original design <br /> to be changed and upgraded slightly. Please note the changes on the attached drawing. <br /> Our professional services were performed, our findings obtained, and our conclusions <br /> proposed in accordance with generally accepted engineering principles and practices. This <br /> warranty is in lieu of all other warranties either expressed or implied. Test findings and <br /> statements of professional opinion do not constitute a guarantee or warranty, expressed or <br /> implied. <br /> Best Regards, <br /> NEIL O. ANDERSON & ASSOC., INC. <br /> David J. Welch, M.Sc., Senior Geologist Neilx- Anderson, .Sc., President <br /> CEG-2151, CHG-653 ----__ RGC 2245 <br /> 1) G; <br /> "4,P 0 <br /> DJW,NOA/dw <br /> � prN0. 2151cc <br /> CERTIFIED � <br /> ENGINEERING <br /> GEOLOGIST <br /> 1 �'9TFnF CAL�FO� <br />