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I <br /> CSUS-Multi Campus Regional Center <br /> Site Background <br /> Page 3 <br /> j quantified as kerosene(TPH-K), MTBE, and 1,2-DCA were detected in the groundwater sample collected t <br /> from monitor well MW-3 at concentrations generally consistent with historical results. The groundwater <br /> gradient direction (northeast) was similar to the gradient direction measured during the soil and <br /> groundwater investigation activities conducted on December 18, 2001 (slightly north of east). <br /> Condor prepared a Problem Assessment Work Plan (PAWP). dated January 23, 2003, to describe <br /> additional groundwater investigation at the site. The PAWP was prepared at the request of Mr. David <br />' Rosso for the Trustees of the California State University in response to a letter dated April 25, 2002 from <br /> Ms. Setliff of the SJCEHD. The purpose of the proposed work is to further investigate the lateral and f <br /> vertical extent of petroleum hydrocarbon contamination in groundwater at the site. As requested by the <br /> SJCEHD,the PAWP also included a remedial feasibility evaluation that compared and discussed remedial <br /> techniques for site remediation. <br /> I <br />�. Condor Earth Technologies, Inc. (Condor) prepared a Soil and Groundwater Remediation Work Plan, <br /> dated March 3, 2003, at the request of Mr. David Rosso for the Trustees of the California State <br /> University. The scope of work described in this work plan includes (1) groundwater dewatering';with <br /> dewatering wells, groundwater treatment, and proper disposal of treated groundwater; (2) soil over is <br /> - <br /> 4 excavation, including transport and disposal of contaminated soil; and (3) in-situ groundwater <br /> remediation utilizing ozone sparging technology. <br /> s <br /> Nuel Henderson of the SJCEHD approved the PAWP in a letter dated March 27, 2003. Mr. Henderson <br />' also approved the soil over-excavation portion of the Soil and Groundwater Remediation Work Plan as an <br /> interim remedial measure. However, Mr. Henderson also indicated that ozone sparging would not be <br /> considered by the SJCEHD until site characterization was complete. <br /> h <br /> IE } <br /> f <br />