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July 29.1993 <br />Tony Eiden Construcliun <br />4100 Berkshire Lane <br />Plymouth MN 55446 <br />RE; Septic system design and <br />percolation test for; 2290 Abington Way <br />Orono MN <br />Hennepin County <br />We were retained by Mr. Tony Eiden of Tony Eiden Construction to provide criteria for the <br />design and installation of an indi\ idual sanitary sewage treatment system to handle the sewage <br />flow generated by water-use appliances within a single family dwelling. <br />PROCEDURE <br />A total of six (6) soil percolation tests were |)crformed on July 29, 1993 in areas to the south <br />west of the proposed dwelling. <br />In addition, six (6) soil boring's were drilled with a 2" i.d.x 3 1/4" o.d. Hand auger to check for <br />the position of the ground water table and to identify the underlying soil types. Location of tests <br />and boring's are shown on the site plan. <br />The percolation tests wcie performed in accordance svith the provisions of "Minnesota Pollution <br />Control Agency Rules and Standaids Chapter 7080". The percolation test holes were drilled to a <br />alternate mound depth of 12 inches with a 5" i.d. x 6" o.d. auger. Two inches of pea gravel were <br />placed in the bottom of each hole to prevent scoring. Water was then added to the test holes and <br />replenished as necessary-, maintaining a saturation, each hole was refilled to a 12-inch head of <br />water over the bottom, and the (K'lcolation tests commenced.