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<br /> � ' ' � ;'",_�-• .
<br /> � �- .-_ �och's �oil �'esting w-- ..�Y6Y _��' ���
<br /> ; ,� �' /S�� �X P.O. Box 81 03 �'�.,
<br /> �. �.�_ .y73 -
<br /> ���,�,p Loretto, MN 55357 ��J 141,�'.-
<br /> : TeL f6121479-2637
<br /> -,�..,, � �
<br /> Luc.ia f=:orrison � � ,�� � �,.:� �
<br /> ( C��ry Gnberiel ' s Client ) � � ��" �? 6i;,�' �+
<br /> � �Orono, Minn. ,�,.� �. �---_ ..>� �,, � � ��
<br /> � .. '�� �.�..�:� '�...�.. ...:�`�
<br /> Job Site; PJortllwest (.l�iater of ;�out}lwest C�t:ater of aection 2,To�,�,iishiF� 117,
<br /> R�nge 23, Hennipen County, Uxonc�, I�Iinn.
<br /> The average p�rcolation r��te in the pri�n�ry site was 40.G n;in/in, ari;�-l.
<br /> ' the depth to mottled soil w��s at 2 ft. 10 inclies to 3 ft, f' iitr�lies .
<br /> ' '.titiile in the alterrt� te site tlie �ver�ge nercol�tion r<�te �:���^ -32. 2 nlin/ : n.
<br /> . �nd the de;�tll to mottled soil was at 3 ft . 4 inclles to 3 ' �: . `� incl�c s.
<br /> * Note mottled soil is consid�r the higlt se�son�l �i�ter t�: le ��nd is �
<br /> � indicator of sat�ir�ted soil conditions. 'I'llis soil ocr.iirs as re:� �n��?
<br /> �ray c�lors in the soil nrofile, eveu ttio that this soil rc��cts witt�
<br /> ' hydrocloric acid indicztinq the presence �f calcium c�- rbon�te, � ' it � is
<br /> � the_opiniof� of ttle City Insnector ( b�i�e Gaffron ) th��t tl; : :; ga�ay c�l.or
<br /> ! is the tnze w�ter table I.evel.
<br /> Tl�e City of Urorio On-Site Sew�ge Treatmerit Codes �e�ui.re�: ;.h<-,t tliN�
<br /> tlle minnimum deptli to mottled soil be at 4 ft . or deener bt�ior� a stan��. z�d
<br /> ' drainfield c�-n be installed. Tllerefore with the above ini;-17in��tion ( ��c�, r.
<br /> rates and mottled soil levels i the only type of system tl;-: t: c��t1 be
<br /> installed is a press��rized mound system in eitller tlle ��rim-� r �,� or tlif�
<br /> alternate sites.
<br /> Ttie size of mound needed for a 3 bedroo:n 12ome ( hasedon 45i_� g��llon�;�clay
<br /> daily water useage �nd a perc rate _`of hU:6 min�in�fo�� t'he :-izing f�- t:t�i�� ) �
<br /> wo�ilc� be �1 ft, long by 39 ft, wide (3159 sq. ft. ) ov�rall sire, �-�1,1:.�
<br /> a rock layer of 10 ft. wide by 41 ft. long (41� sq, ft. j is rc�c�uired.
<br /> * �ee the enclosed mound design data for tlte specification;�; .E-�r �klie
<br /> �roF�osec3 mound systern.
<br /> j'his mound *�ust be pressurized, tl�erefore a puinp tank ( 1(;; ;� g�J,IQIt )
<br /> �nd a ��umn ( 1/3 h.p. - 35 g.p,m. -pumT�ing rate--140 gallon/c:;cle �+nd
<br /> at least 4 cycles/dc�y j would be required. Pn al�rrn ,ystem ( hoth a
<br /> sound and a lic�ltt alarm ) rmzst be installed in tile house tv inc:�icatE�
<br /> potenti�l �ump fail�.ire . * See tlle enclosed pump tan�: desi<�n for tl�f�
<br /> det-r. ils. -
<br /> �
<br />� P11 traffic must be kept off both �reas to avoid comr�ctic�ci af tlie � -�i1 �
<br /> and ruining the site, tl�erefore both sites shovld be roped �ff by tllE� �'
<br /> owner or the builder. ,��
<br /> * Note clean coarse wash sand sllould be �ised in tilis itiotind, tl�eref�a���� '" �;
<br />, this sand dhould be chected out by the local insnector to tr�-}�-e suxe � �� ��
<br /> i� meets the specifications. �'
<br /> �� ���{�v
<br /> �ite Lvaluator r `,
<br /> `� �� 0
<br />. ��o-'45�-1�� ��_.L f \C��i� ) ���
<br /> ,� ����
<br /> t�obert T:, Koch
<br /> D«B
<br /> Robert Koch �
<br /> i4'IPCi"`; er :.;���d
<br />
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