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GEER <br /> GENESIS ENGINEERING& REDEVELOPMENT <br /> Ms. Terrell <br /> April 4,2013 <br /> Page 3 <br /> A minimum of three reconnaissance groundwater samples will be collected, with one sample <br /> collected between an injection point and each of the three monitoring wells (i.e. MW-103, <br /> MW-104, and CRW-4). The reconnaissance groundwater samples will be collected from the <br /> boring at which amendment is first detected around each monitoring well. The sampling <br /> depth will be decided in the field based on the depth at which amendment is visually <br /> observed in the core. Additional reconnaissance groundwater samples may be collected from <br /> other borings, dependent on observations made in the field. <br /> Reconnaissance groundwater samples will be analyzed for nitrate and ammonium. Because <br /> reconnaissance groundwater samples usually yield only small amounts of water, analysis of <br /> the other constituents listed in the MRP will not be performed. However, if a boring does <br /> yield more water,then additional analyses(i.e. sulfate, dissolved iron, dissolved arsenic, <br /> dissolved organic carbon, and alkalinity)may be performed. <br /> Reporting <br /> The results of this investigation will be reported in a separate document. The report will <br /> include a summary of the actual scope of work,visual observations of the radius of influence <br /> around injection points, and analytical data from reconnaissance groundwater samples. <br /> These data will be analyzed with respect to the lateral extent of amendment around each <br /> injection point, and the effectiveness of the amendment in reducing nitrate concentrations. <br /> Should you have any questions or require additional information,please do not hesitate to <br /> contact us at(209) 599-2004. <br /> Respectfully submitted, <br /> Genesis Engineering & Redevelopment,Inc. 4�59�oNAt (3 o <br /> �fc <br /> ¢ Stephan J. m <br /> Van der Hoven <br /> No.8929 <br /> Stephen J. Vanferoven,Ph.D., P.G. m9 <br /> Senior Project Manager IF OF CA��FOQ <br />