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An Expansion o/ Soil Engineering Scrciecs, Inc <br />1WN1A"Ld/ST.►"LN&. Coo" M. Is. to, 1"ISIM.mph..Mo. H/is/411-M1"a <br />ONTNIN OWNINTA Ttt/ I.111r A"m.11 MIf,, IM. SS1M I t18-163.00 <br />August 31, 1977 <br />George Jackson $ Associates <br />Suite 1760 Shelard Tower <br />Minneapolis, MN 55426 <br />Attn: Mr. Bob Tyler <br />Mr. Tyler: <br />BMUR' <br />ENCINEERNO TESTMG <br />1 f M�yr1 I. Aw�w <br />M NN mo VKI Aw QAWW_ <br />C • 9Mo" I I . Yu Aa /7.0W.V <br />Re: 77-423 PRELIMINARY SOIL BORING <br />PERCOLATION TESTS <br />Proposed Subdivision <br />S.L. Corner of Watertown <br />Road & Willow <br />Orono, Minnesota <br />As requested, we have recently conducted a preliminary soils <br />investigation consisting of 8 power auger borings and 16 <br />percolation tests. These borings were taken to determine <br />general soil and water conditions over the above referenced <br />subdivision. The percolation tests were conducted to pro- <br />vide preliminary information relative to the soil absorptivity <br />rates. The borings and percolation tests were taken at the <br />locations as shown on the attached sketch. Field locations <br />were determined by you and our crew chief as determined by <br />topographical features as shown on the topographical survey <br />provided by you. Surface elevations were interpolated from <br />the contour elevations shown on this same survey. <br />INVESTIGATION METHODS: <br />Power auger borings were completed using a CME-4S truck - <br />mounted power auger unit. The soil classifications and <br />depths as shown on the attached logs were inferred from the <br />soils brought to the surface by the continuous flight feature <br />of the auger and are thus somewhat approximate. <br />Mineral soils encountered in the borings were classified in <br />accordance with the Unified Soils Classification System. A <br />copy of that chart is attached. Representative sampples of <br />the soils brought to the surface by the auger will be retained <br />in this office for a period of 60 days to be available for <br />your examination. <br />CONSULTING INGIN91AS/S0ILS AND MAURIA1S <br />.... A...,.,. • i ...rr ...1 nn (.., t...,�.. r, 1 �., f n. � ,,.:�... • L,yt,.. hon nl i .,.yb u. t.. o. • Mat. •I TI•irny �.t � i. .._.• �, .. q.,,.. 1.. � .. t,. .yrdf <br />