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OCT — 519Bi <br />SYSTEM DESIGN L <br />FOR GREG WHITE <br />IN THE NE% of SECTION 6-117.23 <br />ORONO. MINNE50TA <br />I. Percolation Rete ape c{ `System. <br />15.4 minutes per inch for the primary site. Shallow Trench System. The alter- <br />nate site had an average rate of 11.9 minutes per Inch for a mound system if <br />ever needed. <br />2. Proposed Flow Rate. <br />4 bedrooms 0 150 G,P,p, - 600 G.P.D. <br />3. Soil Treatment Area Required. <br />Use 2.0 factor x 600 G,P,D, _ 1200 Sq. rt. minimua. <br />4, Size and Number of Trenches. <br />4 trenches 3 feet wide and 100 feet long would equal 1200 sq. ft. These tren- <br />ches would be spaced 1,5 feet apart center to center and be 1.0 to 2 feet deep <br />in the natural soil, <br />5. Drainfield Rock Needed, <br />66.7 cubic yards of rock Is needed to have 12 inches under and 2 inches over <br />a 4 inch distribution pipe. <br />6. Septic Tanks. <br />Two septic tanks of at least 1000 and 750 gallons are needed in addition to <br />field area. An a0 gallon <br />deviceing tank owillyalsoPbeuneededmip �to warn eOfh the hairier drain - <br />7. Additional Information, Dump failure. <br />All construction and materials must adhere to the previsions of the City of <br />Grori. All grading and construction t <br />ary and the alternate drainfield sitesraffic must be kept off both the prim - <br />proposed trenches. , Drainage must be diverted from the <br />If any other information is needed, please contact me, <br />Sincerely, <br />PERCOR, INC. <br />IVA, <br />mar5/rr� <br />PCA certified <br />