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CITY OF ORONO <br /> � <br /> C000 SEPTIC PER T�f VI <br /> Koch!s Soil Testing INSPECTOR <br /> Box 81 DATE - ' t I PERMIT NO. <br /> Loreto, Minn. 55357 APPROVED AS SUBMITTED <br /> Tel 763-479-2637 C7 APPROVED WITH CORRECTIONS AS NOTED <br /> Y0 /h A Q NOT APPROVED-CORRECT&RESUBMIT <br /> These comments are for your information. All work shall be dww <br /> T-srrrrrFl enz o in full complian�J ,OiMprlicablc septic and zoning code. <br /> Tel F ? Qa 0 �7b 3 -3 O 3 `� 77 3� Requirements inciu�ing items not specifically noted in this mvim. <br /> -- KEEP THIS PLAN SET ON SITE AT ALL TIMES <br /> Job Site; 450 Willow Drive South, Orono, Minn. <br /> SITE COPY <br /> A pressurized mound system was design for the above property on 6/28/10 and the <br /> drainfield was sized out for a 2 bedroom home ( 300 gal/day). <br /> However the actual size of the house will be remodel to.be a 3 bedroom home or a dailv L <br /> water use of 450 gal/day, therefore the size of the drainfield will have to be increase. <br /> The size of pressurized bed needed for a 3 bedroom home would be the following ; <br /> Overall size;--900 sq.ft. This would amount to a L-shape type bed with the dimensions <br /> of a 70 ft.long by 30 ft. wide and a 40 ft. long by 5 ft.wide (2 beds ) for a combine 900 <br /> sq.ft. to <br /> Amount of pressurized laterals needed; 5 total laterals --Use 2-inch pipe for the laterals '@ I <br /> 1) 3 laterals–68 ft. long and 2-38 ft. long AV Its <br /> Size of perforated hole size 3/16 inch that is space out 3 ft. apart on <br /> center. <br /> Pump size;; 40 gpm--- must overcome at least 10 ft. of head pressure <br /> Pumping rate-192 gal/cycle ( this amount is needed to satisfy the requirement of 4 times <br /> the total lateral volume which is 48 gallons ) <br /> Size of septic tanks needed ; 2-1000 gallon tanks SITE COPY <br /> Size of pump tank needed; 1-1000 gallon tank. <br /> Amount of Sand needed;---75 yds., 15 tons-2 ft. deep <br /> Amount of Rock needed;--45 yds., 63 tons Total depth-1.4 ft. ( 2 inches above the 2 <br /> inch pipe ) <br /> Amount of Topsoil needed over the entire system would be 45 yds.. Total depth 9-12 <br /> inches the above amounts could vary by 10 %plus or minus. <br /> As mention in the 6/28/2011 there is approximately 2 ft. of fill present, therefore same <br /> construction procedure specified out in the 6/28/2010 shall be used when constructing <br /> this Qawd d system. <br /> See report dated 6/28/10 for details. <br /> LN C.( <br />