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25 November 2013 <br /> AGE-NC Project No. 13-2675 <br /> Page 5 of 5 <br /> CONCLUSIONS/RECOMMENDATIONS <br /> Based on the data collected from this investigation, AGE concludes: <br /> • TPH-g and VOCs were detected at significant concentrations in soil and <br /> groundwater samples collected from boring B3, located in the area of the former <br /> potential in-ground petroleum storage tanks. <br /> • Past operations at the subject property appears to have impacted the subsurface <br /> of the property; most significantly in the location of boring B3. <br /> Based on soil and groundwater samples collected, AGE recommends additional <br /> environmental investigation be performed at the subject property to assess the limits of <br /> TPH-g and VOC impact to soil and groundwater. <br /> LIMITATIONS <br /> AGE's professional services were performed using that degree of care and skill ordinarily <br /> exercised by environmental consultants practicing in this or similar localities. The findings <br /> were based primarily upon analytical results provided by an independent laboratory. <br /> Evaluations of the geologic/hydrogeologic conditions at the subject property for the <br /> purpose of this investigation were made from a limited number of available data points(i.e., <br /> soil borings and soil and groundwater samples) and subsurface conditions may vary <br /> beyond these data points. No other warranty, expressed or implied, is made as to the <br /> professional recommendations contained in this report. <br /> If you have any questions or require further information, please contact our office at (800) <br /> 511-9300. <br /> Sincerely, <br /> t4AL rt <br /> Advanced GeoEnvir nc. QQ�.�P rT�� <br /> QQOQ\Pe� Its � <br /> �y� * No. 7473 <br /> No.8574 �0 <br /> Brian W. MillmanWilliam R. Little sT �� <br /> Senior Project Geolo sT OFC AI�FO��\P Senior Project Geologif OF <br /> California Professional Geologist No.8574 California Professional Geologist No. 7473 <br /> cc: Johnny Yokum, San Joaquin County Environmental Health Department <br /> Advanced GeoEnvironmental,Inc. <br />