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Mr.James Barton <br /> August 7,2002 <br /> Page 4 <br /> • Report and 1999 Annual Review". SECOR submitted k response to the draft revised MRP on May 18, <br /> 2000. The final revised MRP was issued on June 19, 2000, which required a feasibility study be <br /> conducted that would evaluate remedial options. SECOR submitted the July 10, 2000 "Feasibility <br /> Study/Remedial Options Evaluation Report" in accordance with the final revised MRP. The feasibility <br /> ' study recommended that free phase hydrocarbon removal from well MW-3 using a hydrophobic <br /> hydrocarbon absorbent sock. The RWQCB approved the feasibility study in a letter dated July 31, 2000. <br /> ' On September 8, 2000, a hydrophobic hydrocarbon absorbent sock was placed in well MW-3 to assist in <br /> the removal of free product. The hydrocarbon absorbent sock has been successful in removing floating <br /> product in well MW-3. In accordance with the current MRP, socks will be installed and/or changed as <br /> ' needed based on the presence of free product in the well. <br /> This report is organized as follows: <br /> ' • Status report describing activities conducted during the Second Quarter 2002; and <br /> • A discussion of the quarterly groundwater monitoring procedures and results for the Second Quarter <br /> 2002. <br /> ACTIVITIES CONDUCTED DURING THE SECOND QUARTER 2002 <br /> ' • SECOR met with RWQCB staff and Westrec on May 15, 2002, to discuss the status of the Site and <br /> develop a revised monitoring and reporting program; <br /> N • Groundwater monitoring and sampling was conducted on June 26, 2002; and <br /> ' • Marina personnel continued to monitor well MW-3 for the presence of free product. <br /> GROUNDWATER MONITORING <br /> ' On June 26, 2002, SECOR sounded five groundwater monitoring wells (MW-1 through MW-5) using an <br /> electronic water-level indicator graduated to 0.01 feet. The depth to groundwater was measured in each <br /> ' well and recorded on the water sample data field sheets included in Appendix A. The water-level <br /> indicator was rinsed with deionized water between the sounding of each well to minimize the potential for <br /> cross contamination. <br /> ' The sampling plan for the Second Quarter 2002 was in accordance with the revised MRP as shown on the <br /> table below: <br /> ' 1 Q2 Q3 Q4 <br /> MW-1 NS NS NS NS <br /> MW-2 NS NS TPH /TPHd NS <br /> ' MW-3* TPH PHd TPH /TPHd TPH /TPHd TPH PHd <br /> MW4 TPH PHd TPH PHd TPH /TPHd TPH TPHd <br /> MW-5 NS NS NS NS <br /> ' *Sample well MW-3 only if no free product is present. <br /> Prior to sampling, wells were purged of approximately three casing volumes of water using a dedicated <br /> disposable PVC bailer. During purging, pH, electrical conductivity, and temperature of the evacuated <br /> [:\Tower Park\QMR\2002 QMR\Q2_2002\2nd QTR 2002.doc SECOR International Inc. <br />