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0 0 <br /> 1.0 INTRODUCTION <br /> Conestoga-Rovers & Associates (CRA) has been retained by Union Pacific Railroad <br /> (UPRR) to further characterize the soil and groundwater in the vicinity of the former <br /> wastewater evaporation ponds and proposed stormwater retention basins at the recently <br /> purchased RCCI Property in Lathrop, California (Site). The Site is part of a planned <br /> expansion of UPRR's Intermodal Facility(Figure 1). <br /> 2.0 SITE BACKGROUND <br /> The Site is located in a mixed agricultural-industrial, unincorporated area, west of the <br /> City of Manteca in San Joaquin County, California (Figure 1). General topographic <br /> gradient at the Site and surrounding area is to the southwest. The Site was developed <br /> with wastewater evaporation ponds associated with the DeGroot & Sons property, <br /> currently occupied by the Cal Suprema Cheese facility (Suprema) (Figure 2). <br /> Wastewater from the Suprema facility related to cheese and whey production and <br /> cleaning operations was discharged to the ponds. The ponds were active from the mid <br /> 1990s to approximately 2002. The ponds have steep sides up to 10 feet (ft) deep and are <br /> currently dry and overgrown with vegetation. The Site is accessed from the <br /> Cal Suprema Cheese facility to the east. No buildings or structures are located on the <br /> Site. The Site is bordered by the UPRR Intermodal Terminal and fallow agricultural <br /> land to the north,by the South San Joaquin Irrigation District(SSJID) Drainage Canal#3 <br /> to the south,by the Cal Suprema Cheese facility to the east,and the SSJID French Camp <br /> Outlet Canal to west(Figure 2). <br /> 3.0 PROPOSED SCOPE OF WORK <br /> CRA proposes to drill six direct-push soil borings within the former evaporation ponds, <br /> six direct-push soil borings around the perimeter of the former evaporation ponds, and <br /> three direct-push soil borings in center of the three proposed stormwater retention <br /> basins (Figure 2). CRA will collect soil and/or groundwater samples to: 1) characterize <br /> the inorganic compounds in soil, and 2) obtain a baseline of the existing soil and <br /> groundwater conditions around the Site. <br /> 010001(8) 1 CONESTOGA-ROVERS&ASSOCIATES <br />