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THIS ITEM HAS BEEN <br /> MICROFILMED <br /> -2 • <br /> - <br /> Lot 23 had an average percolation rate of 38.2 minutes <br /> per inch. Although a standard system can be used, the trench- <br /> es should be no deeper than 3 feet deep in the natural soil. <br /> Lot 2L. had an average rate of 50.0 minutes per inch which is <br /> close to the limit of 60 for a standard system. Thus, a stan- <br /> dard system is likely although a fourth hole for the primary <br /> site will need to be tested later and depending on it 's rate <br /> a mound system could be required. Also, if the house is pos- <br /> iftioned such that another area has to be tested, the rates <br /> could vary. <br /> Additional information follows . If any other information <br /> is needed, please contact me . <br /> Sincerely, <br /> PERCOR, INCA� <br /> Mark S. Gronberg, P.E. <br />