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, <br /> _ . _ _ : , <br /> . <br /> .� _. . , _ _,..,. .:,;. . <br /> . . - , ...,... ;, _ . <br /> ,x.4.; z <br /> �v�. <br /> ��- <br /> i <br /> ,i,,.. . <br /> i� � <br /> i ��o Soi!En tnes�ing Serukei�lnc. R■r ■U�. <br /> An Ex wns o � K Y <br /> 1 <br /> �NOINEERINO TEBTIN�1 <br /> .tww...�.�...w <br /> MINNEArOIIS/fT.MYl{I00 S.Cowiq 111.11.�.0.Ni�if Si.MNt..AA�.iN711 i12•N1.N00 r.���.w^"'a""""' <br /> c i YUit r.t.M.r A.a I�+w�h <br /> MONTNERII MIMNEtOTA�21f E.1f1A Aw�w.N�Niq,l�•151M 121Mt1i�ItN <br /> Febr���ry 24, 1977 <br /> Brauer $ Associates, Inc. <br /> 6440 Flying Cloud Arive <br /> Eden Prairie, Minn�ssota 55343 <br /> � Re; 77•045 SOIL BORINGS 4 PERCOLATION <br /> TESTS y � � �� ` <br /> Lots �1 $ 8 <br /> Robert Car�iii, Richard Dohert <br /> Property <br /> North Ara� Road <br /> Orono� Minnesota <br /> Gontlemen: <br /> As yau requested on February 9, 197�. we have recently taken : <br /> two power auser borings aad 12 �perc:olation tests to a�sist <br /> in evaluating the soil, soi� absorptivity, and the ground- <br /> water conditions for the ucsign of individual sanitary <br /> systems for the proposcd houses to be situatad on tho above <br /> referencea lots. The percolation tests and horings were ' <br /> taken in the general locations as directed by you and as <br /> shown on the attached sketch. Surface elevations at the <br /> bore holes were referenced to the center line of North AtcR <br /> Road south of the southeast property corner of Lot S with <br /> an assume� elevatioa of 100.0. <br /> . , �,�� �, ;� � �1 <br /> INV�STIGATION METHODS: }� d. . � � <br /> _ .� �. ��;� <br /> � <br /> � fhe boring and perc;olation tests were�tske on.Februtsy 17. <br /> 1977 using a truck•mounted powark;auge'��'uni�;.��he soii <br /> classifications and depth s�s shown on the attaChed logs wOre <br /> inferred from the soils brought to the suteface by the con- <br /> ; tinuous flight fcature of the auger. The depth of strata <br /> ' change is thus considered approximate. The soils encoun- <br /> ' tered in tlie borings wec•e �isually and manually classified <br /> in accerdance with AST�1 D2487 Unified Soils Classification <br /> + System and ASTM D2488 "Recommended Practice for Visual and <br /> ' Mar.��al llescription of 5oils". A copy of A5TM D2487 is <br /> , attachcd. Represent�tivc samples were then returned to our <br /> � �aboratory for verificati�n of the fiold clsasifications by <br /> � a Soils f:��;incer. Representative samples will remain in <br /> thi.s officc For u periad of b0 days to be availuble for your <br /> • ex�mination. <br /> 4 � <br /> � <br /> (`..e,". ' � . . _ . <br /> �s. <br /> � � <br /> ""' CON�ULTINa ENOIN[l11H�O�l�ANO MATl111A1� <br /> ', , ,� -,, ��.nn• n�•.a 1 il fnn N nA Mue1Mn Can� f <br /> ..1'.i.:z<.�tu.u.t.. _ . <br /> -w,.aw�Wlt..rMMi���M��" . . _ � .�.� <br /> °t, <br />