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WORK PLAN FOR A PRE-GAS STATION <br /> SCREENING LEVEL PHASE II ENVIRONMENTAL ASSESSMENT <br /> PROPOSED GAS STATION PAD <br /> SAFEWAY STORE #1264 <br /> 1950 WEST 11T" STREET <br /> TRACY, CALIFORNIA <br /> April 23, 2001 <br /> INTRODUCTION <br /> On behalf of Safeway Inc. (the Client), GeoTrans, Inc. (GeoTrans)will be conducting a pre- <br /> gas station screening level Phase II Environmental Assessment (Phase II EA) of the <br /> proposed gasoline station pad at Safeway Store #1264 located at the northeast corner of <br /> the intersection of West 11" Street and Corral Hollow Road in Tracy, California (the <br /> Property). The Property is located in the southwest portion of the Safeway shopping <br /> center. GeoTrans understands that the Client is interested in developing the Property as a <br /> gas station in conjunction with Safeway Store #1264. <br /> SCOPE OF WORK <br /> The pre-gas station screening level Phase II EA scope of work will consist of drilling four <br /> soil borings to first encountered groundwater or 30 feet in depth, whichever is shallower, <br /> using a direct-push sampling rig (1.5 inch diameter). Depth to first groundwater is <br /> anticipated within 30 feet of ground surface. One boring will be drilled in the anticipated up- <br /> gradient portion of the gas station pad, two will be completed in the anticipated down- <br /> gradient portion of the pad, and one will be completed in the expected location of the <br /> underground storage tanks. <br /> It is understood that the work area is an open field with no site access restrictions. <br /> Apparently the Property was never developed; therefore, it likely that contamination <br /> would not be present beneath the site. However, soil and groundwater sampling will be <br /> carried out for purpose of baseline study. Soil samples will be collected at 5, 10, and <br /> 15 feet in depth from each boring for field screening with an organic vapor monitor <br /> (OVM) and potential laboratory analysis. Based on field screening results, one soil <br /> sample from two boring locations (total of two soil samples) will be submitted for <br /> laboratory analyses. Soil samples will not be collected below 15 feet in depth, unless <br /> field conditions suggest soil impact is present below 15 feet in depth. If groundwater is <br /> 1 <br />