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• 1 •� <br /> Koch ' s Soil Testing � �1 �OC�''� , <br /> Box 81 � �� <br /> �' Loretto, Minn�, 55357 � <br /> , . � � c� � � 3'l <br /> � <br /> 8/14/07 <br /> JobSite; Park Gun Club <br /> 3660 -6th Ave. N. <br /> Orono, Minn. <br /> Two soil borings were done on the east side of the property to <br /> detrmine if any type of drainfield could be installed and still <br /> comply with the current City of Orono On-Site ��p�i�`�and Drainfield <br /> Codes. <br /> 1 indicated Fill Material to a depth of 7 inches , <br /> Soil Boring # Fill Materia; l to a depth of 14 incches . <br /> andSoil Boring # 2 indicated , <br /> Mottled soil was at 16 inches in S.B. # � <br /> Mottled soil was at 20 inches in S.B. # 2 S <br /> ina 1 : � 1 <br /> However there is only 9 inches of seperation distance from the <br /> original topsoil level to the mottled soil ��• level . <br /> In the S.B. #2 area there is only 6 inches of seperation from the <br /> original Topsoil to the �rottled soil level. <br /> The current codes stste that drainfield systems can �'r <br /> • not pe� installed on fill materials and alsobefore mbefobe atmoundt <br /> 12 inches of unsaturated soil � <br /> system can be installed. � v�A�B�- <br /> With the above requirements any type of standard drainfield ( <br /> ( Mound system or Trench System) CAN NOT BE INSTALLED ON THIS PROPERTY. <br /> The most logmcal solution to this drainfield problem would be to <br /> installl 'zol.ding tanks and ha�e them routinely pug�ped out <br /> by�� �i�i�pump�� with the City of Orono. <br /> The Size of hol�ing tank nemdmdstsbeuiasballedlinsthe-165�gon <br /> sealed tank. An al,•arm syste this will allow <br /> bmilding to indicate when the tank is 75 � full, <br /> a 25 � reserve capcity. <br /> This tank could be insledled in the area where the present septic <br /> tank is already instal <br /> . Site Evaluator <br /> Robert A. Koch M. P. C. A. Cert . ff 193/ 1429 <br />