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EXPLANATION <br /> N0t'thwest �j I� rl Southwest MW-5 Monitoring Well <br /> i <br /> C r VW-8 Vapor Extraction Well <br /> M t0 N <br /> i 0 <br /> B-9/MW-4 B--10/VW--5 Dispenser Island m M MB-3/VW-1MS-3 Monitoring Sparge Point <br /> CLw s ML Clayey Silt, Silt Some Clay <br /> �- CL Clay, Silty Clay <br /> i 10 � <br /> SM Silty Sand <br /> D/0 006 ! <br /> a _ _ _ _-----��� SW Sand, Fine-- To Coarse-Grained <br /> 20 _____-SW---- ND/ND `"-- SW -- `_ -_---- —=� SW a <br /> m _�----�____. ___ _____ -- SP Sand, Fine-Grained <br /> L!! r 'ND/0 0055 ND/ND <br /> t Sample Location <br /> E , p <br /> u i ND/0 0075 -ice SSM 520 1 3 Concentration Of TPHg/benzene <br /> i <br /> 088/17 / Measured In Parts Per mlilion (ppm) <br /> -40 ML ML <br /> a <br /> 1 2/0119+ 3 3/0 36 I i ML a 26/021 I ND Concentration Of TPHg/Benzene <br /> m Below Laboratory Detection Limits <br /> M _ ML Of <1 0/<0 005,Respectfully, In ppm <br /> 50 ND/0 048 • --_ SM ND/0 030SID <br /> I <br /> .� <br /> 520/13 <br /> DL 32293 <br /> 60 ND/014 9 /3 4 --- W ! <br /> X 8 <br /> a i — ---_______�__ _-----.� <br /> -----------4L _^�= _`�..�--�-��. (10/8/92) Screened Interval <br /> a —--- ------ .-- .----- ~ � 1 <br /> 70 _.�___._� i SW <br /> SW Approximate Depth to Ground Water <br /> In Monitoring Well MW-4 On Indicated <br /> 80 <br /> (10/6/92) Date <br /> 1 <br /> r , <br /> 90 <br /> I ' , <br /> 20 <br /> 10 <br /> ' 1 <br /> I� 0 10 20 <br /> APPROXIMATE SCALE <br /> in feet <br /> I <br /> GEOLOGIC CROSS-SECTION C-C' PLATE <br /> • � �� ARCO Service Station No. 2130 <br /> 'FILE NO 79006 North EI Dorado Street <br /> 7 <br /> Stockton, CalifrMa <br /> PROJECT NO, 30003 0003G16A II <br />