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Cd&sns Cors!sowdon <br /> Dh4aloft <br /> 1 office ' <br /> office <br /> i <br /> Tmrrer <br /> LEGEND <br /> MKS-12 © I MW-4 through MW-12 GEOCON <br /> Qo (<5 0) I Groundwater Monitoring dells <br /> (<5 0) <br /> i MW-1 through MW-3. ALTON GEOSCIENCE <br /> Groundwater Monitoring Wells, March 1992 <br /> Chaln Link Fence <br /> SB-1 and SB-2 ALTON GEDSCIENCE <br /> Soil Borings, March 1992 <br /> AAtiY-9 SB-3 GEOCON Sod Boring0 <br /> (<5 0) ° <br /> (<5 0) ®! VW-1 & VW-2 GEOCON Vapor Extraction Wells <br /> Storage Wbrehouse <br /> g a MW-8 (<5 0) Below Laboratory Detection Limit of 5 0.ug/kg <br /> LLI <br /> UJ U O (<50) @ W-7 y T-1 Former 10,000 Gallon Unleaded Gasoline UST <br /> (<5 0) (<5 0, ®� <br /> Approximate Location (<5 0)S <br /> of Underground � �. � <br /> T-2 Former 5,000 Gallon Diesel Fuel UST <br /> L1 SB-2 Fuer Tank Cmxrt / ` o 21' to 30' Isoconcentration 10 Aug/kg <br /> ® (<5 0) <br /> — (< o 31' to 40' Isoconcentration 10 – 100.ug/kg <br /> X18– (<°0)'S`\ ® �` NS Not Sampled <br /> <5 n) I 1(250) <br /> n L®(<5 0 Vey-2 ! ' Farmer Pump Island , <br /> 1 i <br /> (<s o) rMw-1 I <br /> I ?r i- 1 °� <0) <br /> 0 * �;'I ' 1 (<5 0) <br /> l--^ I Bu�rdi�g 1 QQ I O SB-1 ap\�� <br />' MW-3 sl.lR.��J'�I 10Q h <br /> S ) (<5 0) kormer Pump Island <br /> e <br /> ♦ a 5®fes .00 0 I 23 rm <br /> v` � _ � l �� <br /> n O ( 5 ) <br /> XTE tom,FEET <br /> (<5 0) 0 MW-5 <br /> (<5 a) <br /> (<5 a} <br />' SOURCE GEOCON ENVIRONMENTAL CONSULTANTS, 1= <br /> l <br /> Storage WarWmw <br /> MW-10 Estimated Area] Extent of Benzene Cion0®i1trations <br />' (<5 0) in Soil >1 o-ate with Depth <br /> I (<5 0) <br /> CALTRANS <br /> 1604 SOUTH E STREET <br /> STOCKTON,CALIFORNIA <br /> P4 I:- 410401 00 Dcd= FEBRUARY <br /> PM#* CAL asp 41oa-FAsa <br /> W YARD=NTENARCE STATM Fig— 5-6A <br />