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y. <br /> CLOSURE 32, 03-25-93 <br /> PREVIOUSLY SUBMITTED INFORMATION FOR SITE CLOSURES_ FEBRUARY 25 <br /> Western Geo-Lngineers followed the Tri-Regional Board Staff <br /> Recommendations for Preliminary Evaluation and Investigation of <br /> Underground Tank Sites (T-RBSRFPE&LOUTS) , August 10, 1990, page <br /> 9-CASE #2-No Further Action Required and page 21-TABLE #3, <br /> Section II Closures. <br /> Appendix F, addresses the conditions needed to be met for <br /> consideration of site closure: <br />'I <br /> CONCLUSIONS <br /> 1 . Benzene, Toluene, Ethylbenzene and Xylenes have been <br /> below detectiion limits for all wells (MWI, MW2 and MW3) <br /> since the July 5, 1988 sampling. <br /> 2 . The most recent varification sampling of soil and ground <br /> water shows the soil and ground water beneath this site fir: <br /> to be free of gasoline range hydrocarbons and the ground <br /> water beneath this site to be free of lead. <br /> 3 . Over-excavation of the tank field and waste oil tank <br /> t_sri area removed the contaminated soil. <br /> 1 4 . The limited ground water contamination found beneath the <br /> tank field end at monitor well MWI was remediated by <br /> evaporation and/or dilution. <br /> I <br /> RECOMMENDATIONS <br /> I <br /> 1. Based upon the above conclusions this site should be <br /> considered as "closed" for Desert Petroleum Inc. <br /> 2 . Once site closure is granted, the existing onsite <br /> monitor wells should be destroyed, to prevent any risk <br /> to the ground water from the ongoing retail of gasoline <br /> at the present service station facility on site. <br /> TIME FRAME <br /> Due to the unusual circumstance of Desert Petroleum's situation, <br /> ie. Bankruptcy Court controlled escrow and pending sale of <br /> property, an immediate decision needs to be made concerning this <br /> property. A portion of the moneys generated from the sale of this <br /> Property may be distributed to other properties that are in need <br /> of remedial investigations and/or actions. <br /> page 3 <br />