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;''�' .r ..� .a, ��r .. ,a ,�y: f� rY�.'w{�%: r �+4 "]:,r-.s.. s•qk � m.,P x ;,�"�L�t�,w^;if .�' .+y.�r - �y � `�- �� i��d:,, fG�,�'�ti: s l,�.. i_.�. � <br />_ a ,,� i • �x � ' f �'��.� ;,r�r-.��.�t� F�: .��h%� PF' »��r:: 7: ;4.����� i A _ �3,r���� ,. ��. <br /> �" �.� pri"": �`�r��_ '�4��r.��d��`�`x:1�x � �`1�,�'..h,�=•��c' r cyrs (�f�L,F t� f�,��. ^�V ';a,,�r�L' y,��T(,:,,. ..0: ,�. �� �, ��..u;� ' r� <br /> E t <br /> i <br /> f S <br /> 7 <br /> the two fiberglass USTs and the sand overlying the steel USTS were removed from the <br /> cavity and stockpiled along the cast side of the Site. <br /> On the morning of November 2, 1990, Golden West placed dry ice in the US`I's to rcducL <br /> the possibility of ignition during removal and transportation. Vapors in the tanks were <br /> monitored for explosive conditions by GOILICH West in the presence of;c representa.',ve of <br /> the San Joaquin County Dire Prevention Bureart (S)CFI)B), Vapor levels were determined <br /> to be within sate limits for removal by the representative of the SJC_FPII. <br /> Golden West then removed each USTby attaching chains to the top of the tank and lifting <br /> it with an excavator. After ren-oval, each tans: was inspected by Mr. William Snaveley of <br /> the Sar; Joaquin County Public Health Services (SJCI'1-IS) and Roux. All "►nks appeared <br /> to be in good conditioc:. There was no visible evidence of holes or leaks. The US'I's were <br /> then loaded onto I1 and II Environmental Services trucks and transported from the Sita. <br /> 4.2 Soil Sampling ill Tank Excavation <br /> Visible evidence of contamination (discolored soil and gasoline odor;) was observed <br /> throughout the former tank cavity following tike removal of the old USI"s. Due to the visible <br /> contamination present, Mr. Bill Snavely of the SJCPIIS authorized over-excavation of the <br /> former tank cavity pnor to collection of soil samples. On November S, 1940, Golden West <br /> began excavation of the new tank cavity. Visible evidence of contamination was observed <br /> throughout the new tank cavity excavation. Over-excavatiarn of the old and new tank cavities <br /> took place irorn November 5 through November 14, 1990. During over-excavation,the two <br /> F rMX ASSOCIATES 4 Doc #AR06776tV.1.1 <br />