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i Concrete Pod/ Sidewalk � � 1 � Oispanasr Island 3: Uncoin Street Asphaltjl� I 11 AsphaltSoil 3 Product Lin• m m 7- i 0 ! +5 Tank Cavity i 51 4 100 �I 1 � i <1 0 I j Vnd•q�� j l ` I I Starage Tank I I 10 i' ML L----__--j <1 o j N _0 — — i ML o 0 15 , ML <1 0 ,<;_ s/ 4 37 CL <1 0 <10 O 20 ; = ML ML 0<1o <� — • 1300 ; _ <10 <1 0 Cn _* - -- - -- - - - - - - - - - - - _ - - - 25 — 72 44 i —� • 15 ct� � — I • Q^ �>� ! 30 } . 41 �� CL <'y LY] • 30 = CL • 7so 21 150 cL —180 _' 35 — I - - - -- - 'I'� — r - - - - - - - - - - - - - - _3Z - - X-10/28/93 'S M � — S SM T ] ��_ 10/28/93 —�–. — �. 49 / 30 11 0 4p ---+ / �� 22 Range in water Lewi 1 2 1 i SP Observed During Monitoring � X =_8/24/92 — — —� 8/24/92 O 45 — - - i - - - - - --�- - - - - - - - - - - - - - - - - - - - - -- — — — — — — — — - - — - - - - l Q 50 EXPLANATION. ZZ 1 4ML Silt, Some Clay, Clayey Silt, Silt Z Static Water Level 55 - 10 CL Clay Trace Silt, Silty Clay r=1 Screened Interval Of VaporExtraction 60 SM Silty Sand, Fine—grained And Groundwater Monitonn Wells SP Sand, Fine—grained Shallowest Depth To GroundWater 0 • Soil Sample Location =* Before January 1988 Base On 0 30 Depth To Groundwater Mea urements Concentration Of Total Petroleum ' Scale In Feet 4100 Hydrocarbons As Gasoline Measured In Wells At Nearby Sites Source Figure Modified From Drawing (Vertical Exaggeration 3X) In Parts Per Million Provided By RESNA 1 ARCO PRODUCTS COMPANY FIGURE NO. SERVICE STATION 2168, 441 WEST CHARTER WAY 4 0?0E m �o n STOCKTON. CALIFORNW PROJECT �• GEOLOGIC C SS--SECTION C—C' 805-117.01 i