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1 <br /> • Page 5 Apnl 26,2002 <br /> i <br /> The top of the PVC casing, TOC) is about 0 3 FT below ground surface (bgs ) <br /> The inclusion of the relevant Victor Fine Foods information requires that a <br /> common datum be established It will be prior to the next quarterly report The <br /> relative depth to water measurements at WOS MW No 1 indicate the surface of <br /> the ground water has varied as follows <br /> ' Date WL FT <br /> Measured below TOC <br /> 12/21/00 4768 <br /> 3130101 4711 highest elevation of table <br /> 119/02 4964 lowest elevation of table <br /> 4111102 4835 <br /> Reference ATTACHMENT 6, GROUNDWATER SAMPLING FORM MW No 1 <br /> A 1990 well survey has been located which includes much of the area within a 2,000 <br /> FT radius of the WOS site <br /> Conclusions from Findings <br /> The single WOS MW No 1 is located in the center of the petroleum hydrocarbon <br /> contamination zone It continues to reflect low but consistent concentrations of <br /> petroleum hydrocarbons Characterization of mobility and direction of any non-volatile <br /> advancing plume at this site will require additional sampling Definition of the leading <br /> edge will likely require sampling north and east of the plant site's property line Using <br /> the Victor information a clearer picture of the seasonal gradient and direction of <br /> groundwater movement may be developed <br /> The 1990 well survey information is relevant and its contents are being reviewed for <br /> updating to reflect interim development within 2,000 FT of the WOS site <br /> ' I am not aware of petroleum hydrocarbon sampling of the Victor monitoring well MW <br /> 3A or MW1A to date <br /> Recommendations <br /> Groundwater monitoring should continue Reference to a common elevation datum <br /> and assignment of elevations to ground water surface should be completed <br /> Permission to trespass bore and sample on the adjacent property must be obtained <br /> Direct push technology probing to water table (about 65 FT bgs) with sod logging and <br /> 1 <br />