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. i , ..� it '�F'�f�"+ €iw'��;,���S�jrk t""se'`�,��i L x4�`�f s`_Fr5�6*t'.ry� � 1 nrt'� 1 y�"i# ��, r l, y� �KZ'� ���Ee�.��a�#tYSr�� i,^rJ ��r�i . >�. ,�t -J,�; <br /> � " k�, �� p a ;,��c1 t . P ` S �P ,,��ax�.t �` � k ;� �^ qe cc ' ���. <br /> s r x 0.� �SY tt �r a Ft. v �'�;�... <br /> f �� � - "*c k ' �4 �S 1 t� Y ��a4r) ����y���{��� L ��.. <br /> ,�v , `� ;r �a?� �'fi� �rt.�q ' €��� ti n t'� v �'�fw. + �s 5&j�� r�i`�;� ��4"�`<r.ae''�� s <br /> ���, �? ,�1�# ���t�ra °r � �� l �a�nk3 a r� " �`�9,_ a; r� � ��r�i+nt'��.p i,�. <br /> ' � �r; �t -� � ,,e;, ' �` �>, ,��..� � ~:��� � � � . <br /> ;., .��i�'`�, <br /> . h 1;�1�0 <br /> r,u��st 2c, 1982 <br /> DcuK �j�c��•rS <br /> Far;e 2 <br /> Critieal sizes of the vsrio»s elements of the s,istera arc• in::ieatac? �c:lox. <br /> 1•tI1��7"tt'M SEPTIC TA' K ^,APACITY 1GC'G Gallons <br /> DRAIi1 FTF.LU FIFE UTA"1';T°R l: inch��s <br /> SOIL TFtFJ{Tti�r�I' ARF.�'�: <br /> 6" of rock t;nder drain nipe 750 :.F <br /> 12" of rock under drain pipe ��i.b Sr <br /> 18" of rock under drain pi�e l�yS �c <br /> DEPTH OF TREP1CFf 9ELO�.v EXISTItiI'� Gr'_1D::: <br /> 6" of rock under drain pipe 2? inclie9 <br /> 12" of rock under drain pipe 28 inctes <br /> 18" of rock cnder drain pipe 32 inches <br /> The above date is based on minimum cover over the drtiin fiald. It is <br /> recotrm►ended that the minimu�n cover be used in order to allox for inaximum <br /> benefit through evapo—transpiration. <br /> �iven the nature nnd di.^�ensions of tha site, sre rocomi:end ttie drain field <br /> be constr�scted �+ith four each 50 foot drain lines, connected by �'rop <br /> boxes arran,ed down the slope crhere the tests wore run. The trencl: width <br /> st:o��ld be � inches and there slio��ld be L' inches of ro:,k un�?er *he drain <br /> field. Other arranf;ements meeting the abave de3if-n �:riteria of critical <br /> sizea can be used. <br /> R�'�tA RKS <br /> T�—Fe tests and recomrnendations presented herein t�^re in ac�or:'.ance �rith <br /> proces�ures outlined in the Onsite �ex3 e Treatrent :"a~�ual, �ubli�hed <br /> by tlie UrLiversity of Minneso�gricuT�a ns on 5ervice and the <br /> Mir.nesota Fol:ution Control Agency, 1982 edition. :,on�truction of tl�e <br /> system should be in accordance xith thia manual. <br /> Very Tru�y Yours I <br /> f <br /> I hereby ��ty rhni t���s plon,s�rcifi:oiion,or <br /> TOAI SMITH ASSOCIAT^rJ: IIVC rspoA wes pr3Nared by me o�vnder my dlreCt <br /> svperws�on and the� I am o duty Regtttorod <br /> / <br /> Pro(nssional En�ineer u+der fhu lcws of thm <br /> � ���'� �� Stofe of Minnesota <br /> T!i0i�u'�S K S�tITH� PE ::%:�, � . <br /> TKS�aas THOw1AS 14 SMIiM <br /> Date �Z3��—Z Rep•Na 9044 <br /> inCl <br /> i <br />� <br /> TOM SMITH ASSOCIATES ir <br />