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AMERICAN ENGINEERING SUBSURFACE BORING LOG TESTING, INC. AET JOB NO: 20-02044 LOG OF BORING NO. 9 (p. 1 of 1) PROJECT: Residential Development; Elk River, MN DEPTH SURFACE ELEVATION: 911.6 IN GEOLOGY N MC SAMPLE REC. FIELD & LABORATORY TESTS FEET MATERIAL DESCR.IPTION TYPE IN. WC DEN LL PL %-20C I ss 0 I - Organic clay, dark brown, very soft (OH/PT) ~ SWAMP 2- ~ ~ WH M/W I SS 16 3 Clayey sand, dark brown, very soft (SC) ~ MIXED 4 7~./.d¢~ ALLUVIIJM Silty sand, a little gravel, f'me to medium COARSE 5 - grained, grayish brown to brownish gray, moist ~:' : . ALLUVIUM 2 M/W · SS 16 6 to wet, very loose (SM) .... ~r - 7 - Lean clay, light gray, soft (CL/CH)~ ~ FINE I ALLUVIUM 3 M SS 22 28 8- 9- 10 - Silty sand, a little gravel, brownish gray, wet, ' MIXED very loose, lenses of clayey sand and ALLUVIUM 2 W · SS 20 11 - waterbearing sand (SM) I Silty sand, trace of organic material, frae 3 M/W I SS 20 13 - grained, brownish gray, wet, very loose (SM) I 14 ~ COARSE 15 - ' :::' ':- ALLUVIUIvl Silty sand, f'me to medium grained, brownish 6 IWW 1 SS 20 16 - gray, wet, loose (SM) I 17 Silty sand, a httle gravel, brown, wet, medium :' :' ' TILL OR 18 - dense (SM) . . ALLUVIUMCOARSE 15 M/W I SS 16 I END OF BORING Note: Based on sample appearance, water may be present near ground surface. DEPTH: DRILLING METHOD WATER LEVEL MEASUREMENTS NOTE: REFER TO 0-15' 3.25" HSA DATE TIME SAMPLED CASING CAVE-IN DRILLING WATER DEPTH DEPTH DEPTH FLUID LEVEL LEVEL THE ATTACHED 2/28/02 None 10.0 6.0 SI-IEETS FOR AN EXPLANATION OF BORING COMPLETED: 2/28/02 TERMINOLOGY ON CC: GL CA: BL Rig: 3R THIS LOG 2/99