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Mr. Ray Borges �.. <br /> September 10, 2002 <br /> Page 2 <br /> • Signed copies of the percolation test forms are attached. <br /> Design Revision: The original engineered septic system for the property was designed <br /> for a 4 bedroom home. We understand from the property buyer that a three(3)bedroom home is <br /> planned to be installed. A three(3)bedroom home is estimated to have up to 4 persons utilizing <br /> 75 gallons per day with an estimated percolation rate of 250 minutes per inch for the soil. The <br /> deep percolation rate is assumed to be poor to nil based on previous work on the property. Our <br /> revised calculations for a three(3)bedroom home are for 316 feet of leach line with a 42-inch <br /> seepage pit on each leach line. A"doubled" system will require 632 feet of leach line. A revised <br /> drawing showing the doubled septic system indicates seven (7) 90-foot leach lines with a 42-inch <br /> diameter seepage pits to a depth of 25 feet be installed on the end of each leach line. The <br /> seepage pits are used for storativity during periods of high use. See attached plates for revised <br /> calculations. <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 /> ir O No. 215 � <br /> CERTIFIED David J. Welch, M.Sc., Senior Geologist <br /> ENGINEERING <br /> tp� GEOLOGIST �Q CEG-2151, CHG-653 <br /> 9�OFCA�I�OP <br /> Garr S.H. Hubbart, M.Sc., General Manager <br /> Civil Engineer No. 59010 <br /> cc: Gary McEnemey <br /> HpFESS/p <br /> Q4p�C S. H. y by <br /> y G <br /> z <br /> C7 yv nt 'uEaoi <br /> xp.6/03 <br /> \ �T <br /> OFC a�~ <br /> e� <br />