Laserfiche WebLink
i � �1..._.i �. <br /> ♦ <br /> . Koch's Soil Testing <br /> �ob�rt Hanning P.O. Box 81 g_�6_92 <br /> l�22o Co. Rd. � 6 Loretto, MN 55357 <br /> TeL• (6121479-2637 <br /> Orono, Minn. ` <br /> Job Site; Abo�e Addre�e <br /> Three Percolation tests were done at the above site and the evera�e percolation rate <br /> xas 34.8 min/in.Howe�er in the sarae area three soil borings were done and mottled eoil <br /> Was enconunter at the followinQ leTels; <br /> S.B.� 1- 36 inches, 3. B. # 2-28 inches & S.B.# 5-31t inchea. <br /> �►o additional aoil borin�s Were done in loxer ares and the motlled soil le�vele xas at the <br /> foll�ae depths S.B.# 3-2lt inches and S.B.# l�-22 inehea. It _should be noted that the location <br /> of these borin� are at a lower area on the site and in the sprin� an extreme amovnt af . <br /> runoff xould occur in theae area which would nt make these afiea ths most logical aite to <br /> locate a drainfield on. <br /> The primary site Kere the percolation tests Were done is looated on 1!� 9b slope i�nd ths�,�ttled.�� <br /> . , ,�,:« � �� <br /> soil le�ela are at 28-36 inches. Accordin� to the local City.oP Or�no On-3ite 3exsae'�fCocte�:, ;� <br /> a mound eyetem would ha�e to be inatalled beoause of the mottled soil le�ela� hoxeTer.' tbe `elo;� <br /> .,; <br /> li�sit for a mound eystem ie 6 � and the preaent land slope ie 14 96. Tharefore the land, elope i�. <br /> to atee� to locate a movnd aystem accordin� to the present codes and the other avialable site�� <br /> are located at lox areaa xhich does not malce them a good area to locate a ssrste�n on. <br /> ' ��lt <br /> The homeoxner( Mr.Bob HanninQ) �, ��_� that with the perc. ratea at the 31t.8 min/in ran�e that <br /> a atendard trench syete�n could be installed and xork quite xell and the mottled aoil requirement <br /> would ha�e to be bypassed in thia case. . <br /> # The City ot 0� -�. "'` require that the minnirnum depth to t�ttled soil be at 51� �nchea <br /> (�!1/2 ft.) before� a etar�dard system can be ineta11ec3. <br /> Therefore if the follo�rin� s�rstem is allowed a variance would hare to b� granted by the City <br /> OP Orono. <br /> If this VARIANCE xas �ranted then the size of drainfield needed Yor a 3 bedroom hrnne xould be <br /> 1020 sq. Pt. ( thie ia baaed on 1t50 �al�on/ day daily xater ,ueea¢e and a pera. rate,'oi 3l�t.8 min ; <br /> n�a=� , <br /> per inch the aiain� faatore). . *a: . <br /> There xonld ha�e to bs !� trenohea that are 3 ft. x3de by , ,lon¢ xith 12 '3sichea;pf rock <br /> imder the pipe or a total' ot 80 tone of rock ia nmmded, '� ��boxee ehould be uaed�Nt�o. .t3t the <br /> . . . k r'�x�'',� __' . . . <br /> trermhea to the �lope o! the: l�nd. � <br /> , �' <br /> ��� , <br /> Ztiro 1000 �allon ta�ike ehould be uaed these tanks ahould ba ptpnped out every 2-3 Te , ��thia . <br /> practice xi21 enharice the lit'e of the the drainfield. �� . �� : . <br /> r . .. SA yf.,�Y. .,'« �� � � u � �:�', <br /> Note thia ia a repair oP the present drainfield � �»�., _ �� s,�. �r_ -;_� .,.. .a,���,� � ��� <br /> •.ti�a <br /> ��� �_ <br /> Robert Koch �� � _ /,�Gr�p �2� ""�� MPCAi..Ce'r�ified <br /> �l sLl� ° �.,.��.:` <br /> . ��� <br />