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Former UST excavation—7 131 � ——_ ximate round surface 4 63-3 — B31 10 5, 16 feet 1d,5, 16 feet Date 08/07/98 Dote 08/07/98 BTEX ND BjEX ND �- —�TPHg ND TPHg ND Q - CLAY/SILT LAYER ' C 7 8 B3-1 20 feet ` \ Bate 08/07/93 CM 1! T 30 B3 12 20 Date 02128feetN2 , 1 E 95 BTEX D — - TPHg ND -- -- — X 41 — � \ \ � � TPHg_ 720 �— MW3-1 25 feet \ \\ \ Date 06/02/99 CD _ B3-6 15 feet B 00055 — DT 02 ate 12/21/01 \� \ E 0 075 — T 0 D X 0 398 TPHg 5 48 TPHg 651 1` E 0 022 ' tt — X 0038 MW3-3 30 feet MW3-1 30 feet g TPHg 41 Date 05/18/99 Date 06/02199 B NO B 0 328 T 009 T 2043 937 B3 11 40 feet 836 40 feet � X 014 X 3 E 0 $1 H4—B3-4 40 feet Date 02/28/02 Date 12/21/01 TPHg 3 TPHg55 7 BTEX ND Date 12/20/01 BTEX ND BTEX ND TPHg NO. TPHg ND !' TPHg NO 35 3 35 35 40 feet 35 40 feet Date 18107198 Date 08!07198 BTEX ND BTEX ND TPHg ND TPHg ND 1 ' Location of cross section shown on Figure 1 0 30 feet LITHOLOGY AND SYMBOL LEGEND ' EXPLANATION Approximate Scale GRAVELLY CLAYEY LEAN CLAY SILT SAND Estimated extent of soil affected by petroleum hydrocarbons MW3-1 25 feet Soil sample data iR based on analytical data of soil and groundwater samples and Date 06102/99 B-benzene, UST SITE NO 3 4 SANDY POORLY photoionization detector(PID)field measurements B 00055 T—toluene, LEAN CLAY WELL T 02 E—ethylbenzene, SOIL SAMPLE DATA SILT GRADED SAND E 0 075 WITH GRAVEL SCREENED X—xylenes, CROSS-SECTION B-B' INTERVAL Generalized high and low potentiometric surfaces X o 396 TPHg—total petroleum hydrocarbons LEAN CLAY POORLY GRADED V at the site between 7199 and 2103 TPHg 55 Port of Stockton SILT SAND WITH SILT qualified gasoline WITH SAND Data reported in milligrams per kilogram Stockton, California NOT 7 " — — ? Approximate line of equal TPHg concentration in milligrams ND—not detected Project No Figure SANDY LEAN CLAY LOGGED SILTY SAND per kilogram Geomatrlx 6437 000 10