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, <br /> LOG OF BORING <br /> , <br /> PROJECT: BABX-91-589 BORING: 'r-7 <br /> ' PRELIMINARY GEOTECHNICAL EVALUATION LOCATION: <br /> Proposed Visitor Center & Parking Area See Attached Sketch <br /> Noerenberg 14lemorial County Park <br /> Oroao, Minnesota � <br /> ' . DATE: 11 25 91 SCALE: 1" = 4' <br /> Elev. Depth ASTM Descriptioa of Materials <br /> ' 942.0 0.0 Symbol (ASTM D2488) BPF L Tests or Notes <br /> SC :.� . CLAYEY SAND, fine to medium-grained, <br /> . with Fibers, dark brown, wet. <br /> ' (Topsoil) <br /> SM �:�' � SANDY LEAN CLAY, dark brown, wet. 5 <br /> :: SILTY SAND, fine-grained, brown, wet, <br /> , -: loose. <br /> (Glacial Till) Sieve Size °r6 Passing <br /> 6 #200 13 <br /> ' <br /> SP �� � POORLY GRADED SAND with SILT, fine to 11 <br /> ' SM �: : medium-grained, with a layer of SANDY <br /> : SILT at 10', brown, moist to wet, medium Silt Layer <br /> �. dense. �ieve Size 96 PassinA <br /> (GlacialOutwash) 20 #200 78 <br /> ' <br /> , <br /> 92 . 14. <br /> SM �:=: : SILTY SAND, fine-grained, with a layer of <br /> ' 26.5 15. : � SANDY SILT, brown, waterbearing, medium 16 <br /> dense. <br /> (Glaciai Till) <br /> ' END OF BORING <br /> Water level not encountered with I S' of <br /> , hollow-stem auger in the ground. <br /> Water level down 10 1/2' immediately after <br /> withdrawal of auger. <br /> ' Water level down 10' 30 minutes after <br /> withdrawal of auger. <br /> ' Boring then backfilled. <br /> ' <br /> ' <br /> ' BABX-91-689 Brsun Intertac ST-7 page 1 ot 1 <br />