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CITY <br />OF <br />ORONO <br />CITY of ORONO <br />Post Office Box 66‘Crystal Bay. Minnesota 55323‘Municipal Offices <br />On the North Shore of Lake Minnetonka <br />September 28, 1983 <br />Peggy Schwartz <br />Roos-Frick Construction <br />6408 Cambridge <br />Minneapolis, MN 55426 <br />Re: Leslie Residence septic <br />Dear Ms. Schwartz: <br />/^stem.1461 Bay Ridge Road <br />On September 22, 1983, I inspected the existing septic system at the <br />house your firm is remodeling at 1461 Bay Ridge Road in Orono. By <br />probing with a steel rod, I was able to exactly locate' the existing <br />drainfield lines and did rope them off. The drainfield lines are <br />located in the area which you had proposed for the circle driveway. <br />Because of this, the circle driveway must be eliminated to maintain <br />a 20' required setback between drainfield lines and "hardcover". <br />I will note for the record that the system consists of two block <br />construction septic tanks of approximately 600 or 750 Cj:.llons each <br />(original permit records ar& unclear) and 250-300 square feet of <br />drainfield. This is somewhat undersized based on standards for a <br />new home (the typical system installed today consists of .2-1,000 <br />gallon precast concrete tanks and probably 600-800 square feet of <br />drainfield for a four bedroom house in the sandier soil found at <br />the Bay Ridge lot). <br />While you are not required to bring the system up to current standards, <br />I would suggest you consider adding some drainfield, and as a minimvun, <br />at least uncover the tanks and distribution box and repair/replace <br />baffles as necessary. <br />I am enclosing copies of the information we have on file about <br />the existing system. Please contact me if you have any questions. <br />•Sincerely, <br />Michael P. Gaffron <br />Septic System Inspector <br />BUILUINC A ZONING - 473-7357 <br />ASSESSING <br />ADMINISTRATION & FINANCE - 473-7358 PUBLIC WORKS - 473-7359