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Lj1 <br /> -off- - -,F� 7�- - m ,, U 1.-till, <br /> gg� �g <br /> San Joaquin Local Health District Re: Soil Re-Excavation/Resample at <br /> 8pLi 1 26, .1920_ Eaje_2_pf 959 Moffat Blvd. , Manteca, CA <br /> 6. Laboratory that will collect soil samples: , FGL Environmental , Stockton, CA <br /> A signed "Release of Information Authorization" is attached: <br /> 7. Re-excavation/resample steps: this time Jim Thorpe Oil, on behalf <br /> of Raymond Investment Corporation, requesting a re-excavation/resample <br /> to hopefully remove any remaining traces of gasoline contamination. We <br /> propose to excavate an area starting 3' north of the existing wall, extending <br /> east and west 3' From the existing wall to a point 5' south of the existing <br /> wbll to a maximum depth of 17'. Total proposed excavation is 14' wide x <br /> 22' long x 17' deep. The total amount of additional excavated soil w`11 be <br /> approximately 169 cubic yards. All spoils will be placed on plastic and <br /> covered with same in the area immediately west of the excavation. Soil samples <br /> will be taken by the above properly licensed facility from the teeth of the <br /> hoe bucket with brass tubes. Samples will be taken in the appropriate places; <br /> 2 from the bottom of the excavation and 2 from the middle of each side wall <br /> for a total of 10 samples. Soil samples will be analyzed for BTX R E and <br /> TPH-G. Sidewall sample depths will start at 15' and the second sample will <br /> be taken at 10'. (See attached drawings B, C and D for proposed excavation, <br /> resample and spoils locations). Soil remediation plan will be submitted <br /> subsequent to analysis results. <br /> We also plan to take two composite samples from the spoils pile and analyze <br /> as above. <br /> 8. Timing: Sampling could be scheduled within two weeks following your <br /> review of this work plan. The sample analysis should be ready for your <br /> review within three weeks after they have been taken. <br /> Attachments: <br /> Plot Plans/Drawings: <br /> A Shows sample locations at the time of tank removal <br /> Shows top view of existing and proposed excavations, and <br /> proposed spoils location <br /> C Shows side view of existing and proposed excavations, <br /> previous tank location, and proposed sidewall sample locations <br /> ----------D....,-Shows top-.v-iew.-of-existing.-and-proposedexcavations <br /> and Proposed bottom sample locations <br /> Approved tank removal San Joaquin Local Health District permit <br /> Canonie Environmental , September 11, 1989. #85-052-7491, an;flyses of samples <br /> taken at the time of the tank removal <br /> Tank tracking transmittal to San Joaquin Local Health District, dated <br /> September 21 , 1989 with attachments <br /> Health and Safety Plan <br /> '7 <br />