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Koch's Soil TestingIt <br /> P.O. Box 81 <br /> Loretto, MN 55357 <br /> Bob Pietce Tel: (612) 479-2637 9/ 5/ 91 <br /> 4720 Watertown Rd. <br /> Otono, Minn. 6 qq1 <br /> SEP � - <br /> Job Site; Above address <br /> The average peteoLat.ion tate in the pt-,maty site was 31 min/in and <br /> the depth to mottled so.iL was at 24- 30 inches . Wh.i.Le in the aLtetna.te <br /> site the average peteoLatLon tate was 56 min/in. and .the depth to <br /> mottled soA,L was 24 -inches . <br /> Mot-teed soil .is consider the high 4easonat. wa.et -table that exist <br /> dutLng the wet.! c.seasons and is an indication ob saturated soil condition . . <br /> The City of Orono On-Site Sewga Codes requite that the m.nnium <br /> depth to mottled soil be at 4 1 / 2 it. of deepen beiote a standard <br /> dta.i.ni.i,eLd can be -i.nstatled. <br /> Thete6ote with the above insotmation the only type of system that <br /> can be £nstaLLed in--e.ithet site is a ptessutized mound system and <br /> still compLy with : the LoeaL codes . <br /> The size of mound system needed iot a 4 bedroom home ( based on <br /> 600 gal/day daily water useage and- a pets. tate of 31 min/in. the <br /> sizing iactots ) would be 35 it. wide by 80 {yt. Long ( ave size) . <br /> The size of the tock bed needed would be 55 it. Long by 10 jt. <br /> wide ( 550 sq . it. ) . <br /> See the enclosed design data {got the deta.iLs . <br /> This mound must be ptessut.ized theteiote a pump tania ( 1000 gallon) <br /> and a pump ( 40 g . p . m . - 170 gal/cycle-4 cycles /day) must be .instaLled. <br /> An alarm system must be instaLLed to indicated pump SaiLute. This <br /> aLatm must be in the house and must be both a sound and a Light <br /> aLatm system. <br /> Note onLty clean wash sabd should be used in this mound, - . theteiote <br /> this d sand :a:houLd be checked out by the Local inspector to maize <br /> sate .it meets the speeiiications . <br /> ALL consttuction should be kept oii both sites to avoid <br /> compaction of the soils tesuLting in ruining the sites . Theteiate <br /> these sites should be toped to avoid this btom oecuting . <br /> Site EvaLuatot <br /> Robert A. Koch • <br /> Robert Koch MPCA Certified <br />