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A Distance-in feet A ' <br /> SOUTH CB-1 CB-2 CB-3 CB-4 NORTH <br /> -T- -�- -T -T <br /> VW-1 MW-2 VW-2 RW-1 <br /> 0 W-4 10 20 30(4.5'W) 90 9'WI 50 f8 EI 5 E160 IVW 3 70 SW 80 90 VW 4 loo 110(61 W) 120 1 OW b HP-1 140 <br /> 0 <br /> 3,ESTIMATED EXTEKI'0.� - ' <br /> ....+......: .......:..: . ' <br /> OF <br /> i Former North Tani: <br /> 5 VADOSE ZONE CONTAMINATION ?South Tank ,` FFF{ (5 E) •, <br /> PRIOR TO REMEDIATION ' + h ( <5 <br /> ,ti h t#r E <br /> 9 <7 j- i <1 <br /> <1 1__ a 24 >10,000 <1 <br /> 10 >10[100 <br /> 20 700 450 560 <br /> cl <br /> ?.15 <1._ <br /> CS J1 <br /> 20 Dy �� <br /> .\��: �Kit <br /> -yam <br /> 25 <br /> ESTIMATED EXTENT OF <br /> GROUNDWATER CONTAMINATION ' <br /> PRIOR TO REMEDIATION - <br /> 30 ._,..._....... ,, <br /> LJ 1 IPl4,� 1 f �`� 1-5 T1E0 <br /> EXPLANATION <br /> CB-1-#- Proposed confirmation boring <br /> Sands and Gravelly Sands <br /> TPHg concentration in soil CROSS SECTION A-A' CLEARWATER GROUP,INC. <br /> 560 or <1 in mg/kg or non-detectable above WITH PROPOSED CONFIRMATION BORINGS <br /> Mostly Silts and some Clays indicated concentration. <br /> Ruiz Grocery <br /> Prior to Remediation. <br /> 4491 West Durham Ferry Road Project No. Report Date Figure <br /> Tracy,California D-107 11!99 6 <br />