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lU/lU/2U1'G W�ll U8:1Z b'AX 61194131Y4 llOUGLAS SCRBEN PRINT 1�002 <br /> , ORO:�TO COPZc' <br /> - � Koch's Soil Testing <br /> Box S 1 <br /> Loretto, Minn. 55357 <br /> Rex Blauer 10/9/12 <br /> 2380 Devin Lane <br /> Long Lake, Minn. <br /> Tel; 952-473-6734 <br /> Job Site;Above address <br /> The present drain field was inspected. and the septic tanks were determine to be sealed <br /> tanks and there was not any signs of effluent bleeding out onto the surface, <br /> However when the soil borings were done to aetermine where the mottled soil was at <br /> 18 inches in S.B.#1 and at 19 inches in S.B.#2, and with the drain field trench bottom at <br /> � 24 inches the required two foot sepa.ration to the mottled soil Level is not satisfied <br /> Therefore with the above information this system is consider to be a faiting system and <br /> would have to be replaced according to the current City of Orono Codes„ <br /> Therefore another site that is located west of the driveway was tested to determine what <br /> type of drain field could be installed and still comply with the current City of Orono and <br /> Minn. Rules 7080. <br /> The four soil borings indicated the following results; ���No COPY <br /> Soil Boring# 3 mottled soil was at 48 inches <br /> Soil Boring#4 mottled soil was at 49 inches. <br /> Soil;Boring# 5 mottled soil was at 36 inches <br /> Soil Boring# 6 mottled soil was at 36 inches <br /> • Mottied soil is consider the high seasonal saturated soil level that exist during <br /> the wet seasons. , <br /> - The average percolation rate was 16.5 min/in( Loam soil type) <br /> .See enclosed soil borings and percolation test for the details. <br /> Mottled soil is consider the seasonal saiurated soil level that exist during the wet seasons <br /> ( spring and fall ) . <br /> The cunent codes state that when mottled soil is encounter at 36 inches to 48 inches <br /> then an AT-Grade Drain field above ground system can be installed. <br /> . An At-Grade Systern consists of placing the rock on the present ground and Sandy Loam <br /> and TopsoiI being placed over the top of the rock bed. <br /> With the mottled soil:at 36-48 inches,there exist the require tl�ree foot separation <br /> from the bottom of the rock bed to the mottled soil level exists.. <br /> This type of system is in compliance with the cunent C�q�O�qp���cs and Minn. <br /> Rules 7080. SF,PTIC PERMi �.Ati� ;�., . ;:',V <br /> � :: <br /> G�z�l`+JO COYY iNSPECTOR, ;L :r.� c'� <br /> . DATE •f PERMIT NO.,,, - <br /> APPROVGD AS SUf3�1fTTED <br /> APPROVC:D WITH CORItECTIOlVSA3 NOCLp <br /> TJi�S SYSTEM tS pESiGNEQ fOR TOT APPROVEU-COkR�CTh ItE3l:li�ll"(' <br /> •„�,_BEDROOMS. ANY INCREASE II��t�lMBER �fuii����i�nce whh aN epplicuble�����a��k„"�II i i`Jww <br /> OF BEDROQMS INVALIDATES TH(S DESI G N. Requiremcnts�inctuding itgms not specifically noted in tliia revieW. <br /> �CCiCP THIS PLAN SGT ON SITE AT ALL t1ML•S <br /> .. ` ,, ' <br />