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19 November 2002 <br /> AGE-NC Project No. 99-0581 <br /> Page 4 of 4 <br /> RECOMMENDATIONS <br /> The one item of concern was the concentrations of TPH-mo found in soil samples P 1-10 and P2-10 <br /> (1,200 mg/kg and 210mg/kg,respectively);however, subsequent analysis of deeper samples P1-20 <br /> and P2-20 did not detect TPH-mo.Due to the limited vertical extent of the TPH-mo impacted zone, <br /> the presence of TPH-g and barium, vanadium and zinc at levels below regulatory concern and the <br /> non-detectable concentrations of the remaining target analytes,AGE recommends that no further <br /> action be taken at the site. <br /> LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities. The findings were based mainly <br /> upon analytical results provided by an independent laboratory.Evaluation of the geologic conditions <br /> at the site for the purpose of this investigation was made from a limited number of available data <br /> points(i.e. soil samples)and subsurface conditions may vary away from these data points.No other <br /> warranty, expressed or implied, is made as to the professional interpretations, opinions and <br /> recommendations contained in this report. <br /> If you have any questions or require further information,please contact our office at(209)467-1006. <br /> R�D...GE` � <br /> Sincerely, 4 <br /> �\5�0 nc <br /> s <br /> AN <br /> Advanced GeoEnvironmental, Inc. GALLEE F. <br /> ^ � u <br /> No.7327 <br /> Q <br /> aniel W. Kalmbach Calvin F. Lee <br /> Staff Geologist Senior Project Geologist <br /> California Registered Geologist No. 7327 <br /> cc: Ms. Lori Duncan, San Joaquin County Environmental Health Department <br /> Advanced GeoEnvironmental,Inc <br />