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1050 Melody Lane, Suite 160, Roseville, California 95678 <br /> EGI (916)7a22110 ��6)7867� <br /> ENVIRONMENTAL, INC. <br /> October 7, 1993 <br /> Mr Dan T Kirk <br /> Shell Oil Company <br /> Post Office Box 5278 <br /> Concord, California 94520 <br /> Subject Semi-annual Groundwater Monitonng Report <br /> Shell Service Station (WIC No 204-7524-0808) <br /> 7910 Lower Sacramento Road, Stockton, California <br /> Dear Mr Kirk <br /> Aegis Environmental, Inc (Aegis), is pleased to provide Shell Oil Company the attached <br /> information documenting the results of semi-annual groundwater monitoring at the subject <br /> site (Figures 1 and 2), conducted on August 26, 1993, by Blaine Tech Services, Inc , of <br /> San Jose, California Aegis made repairs to the wellhead of MW-2 on September 14, <br /> 1993, at the request of the county, to ensure it's integrity <br /> Gasoline constituents have not been indicated at or above the method detection or <br /> practical quantitation limits in any of the three wells since the June 12, 1992 sampling <br /> event It is the opinion of Aegis and Shell that shallow groundwater does not contain <br /> petroleum hydrocarbons <br /> The interpretations and conclusions contained within the attachments represent our <br /> professional opinions These opinions are based on currently available information and <br /> were developed in accordance with currently accepted geologic, hydrogeologic, and <br /> engineering practices at this time and for this specific site Other than this, no warranty <br /> is implied or intended <br /> s <br /> 91 231F QMR <br />