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Advanced <br /> GeoEnvironmental, Inc. =oma <br /> of Northern California <br /> 14 June 1996 <br /> AGE-NC Project No. 95-0173 <br /> Ms. Mary Meays <br /> SAN JOAQUIN COUNTY PHS-EHD <br /> P.O. Box 388 <br /> Stockton,CA 95201-0388 <br /> Subject: Addendum to Work Plan,dated 18 October 1995 <br /> California Fuels Cardlock Station <br /> 2402 Pacific Avenue,Stockton,California <br /> Dear Ms. Mcays: <br /> On 12 March 1996, three 10,000 gallon underground storage tanks (USTs) were removed from the above <br /> referenced site. Soil samples collected beneath tank#1 and tank#2 revealed substantial petroleum hydrocarbon <br /> contamination at an approximate depth of 17 and 18 feet,respectively. <br /> A Work Plan (dated 18 October 1995) was previously submitted to the San Joaquin County Public Health <br /> Services-Environmental Health Division(PHS-EHD)for this site. Because soil samples suggested substantial <br /> petroleum hydrocarbons beneath UST Nos. 1 &2,we propose to advance six soil borings at the site. Depending <br /> upon site conditions encountered in the field at the time of drilling, we propose that a maximum of four soil <br /> borings be converted into ground water monitoring wells. Proposed soil boring and monitoring well locations are <br /> depicted with Figure 2-Site Plan. <br /> We have tentatively scheduled drilling activities for 18 & 19 June 1996. If you have any questions or require <br /> further information,please contact our office at(209)956-0264. <br /> Sincerely, <br /> Advanced GeoEnvironmental,Inc. <br /> Timothy J. Cuellar <br /> Staff Geologist <br /> Enclosures <br /> cc: Mr. David Atwater-California Fuels Cardlock Station <br /> 1803 West March Lane,Suite A,Stockton,California 95207 <br /> Telephone(209)956-0264 FAX(209)956-0700 <br />