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DATE OBSERVED- 12-30-87 METHOD OF DRfLLING- Hollow Stem Auger <br /> LOGGED BY BD GROUND ELEVATION 19' LOCATION: Se Plot Plan, Figure B-1 <br /> _ z _ <br /> o 0 LULL <br /> 5 O mw � Lu* as BORING NO. B_4 <br /> U. U LL �J Z' jH wv <br /> U. (0 Q`p �= V} SOIL TEST <br /> x w_w <br /> w <br /> r a� 3 t Y D �m <br /> co O �� "i 20 4y DESCRIPTION <br /> zq <br /> 0 <br /> 6" Concrete Cover GASTECHTOR <br /> Natural Ground Alluvium. READING <br /> Brown--gray, clayey SILT, dry to slight- <br /> ly moist, very stiff, slight petroleum 100 ppm <br /> odor <br /> b 20 <br /> 10 SIL 23 P <br /> @10' , Strong petroleum odor noted 1 500 pm <br /> 1546 @15' , Becomes hard, petroleum odor 50 ppm <br /> noted <br /> 20 @20' , Slight petroleum odor noted 200 m <br /> 56 PP <br /> TOTAL DEPTH 21' <br /> 2b No Groundwater <br /> Backfilled with Bentonite Grout <br /> 30- <br /> 35- <br /> 40- <br /> JOB <br /> a3b40.foB No- 13 6782-026-00-00 LOG OF BORING IFIGURE s-s <br /> HYDROTECH CONSULTANTS, INC <br />