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Y-7a - L/3o0 <br />sys'rEM DESIGN <br />POR THE VARS RESIDENCE <br />7 _) N . FERNDAL E ROAf7 <br />URC)NO, MINNESO TA <br />6-2-89 <br />JUN <br />Enclosed are the results from the percolation testing and soil <br />borings taken on the above property as well as system design in- <br />formation for a pressure mound system. <br />All construction and materials must adhere to the provisions of <br />the City of Orono. In addition to the enclosed requirements, two <br />septic tanks of at least 1000 gallons will be needed if the pre- <br />sent tanks do not meet current standards. Also, a pumpinq tank <br />of at ](-ast 750 gallons is rQcommended to house the required <br />pump. An alarm device should be used to warn of pump failure. <br />If different pumping lengths or heights area used than shown in <br />the design, those changes must be taken into account. Drainage <br />from runoff must be diverted away from the mound system. <br />If any other information is needed, please contact me. <br />Sincerely, <br />PERCOR, INC. <br />-.go <br />M Gronbe r A�g, <br />PCA certified <br />r�Jvly <br />I <br />4eyt-111, <br />l <br />