ARCHIVED REPORTS_QUARTERLY GROUNDWATER MONITORING REPORT 1ST QUARTER-JANUARY 2010

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2.0 GROUNDWATER MONITORING ' On behalf of PSC, ETIC performed the first quarterly groundwater-monitoring event on ' January 12, 2010. Monitoring well construction details, groundwater elevations, and analytical data are included in Tables 1 through 7. Site maps with well locations, groundwater elevation contours, and analytical data are included as Figures 3 through 6. ' Field data forms are included in Appendix A. Laboratory analytical reports and chain-of- custody documentation are included in Appendix B. ' 2.1 Groundwater Monitoring Procedures Groundwater monitoring was performed at all 10 wells (MW-1, MW-lA, MW-2A, MW-3A, MW-4A, MW-7S, MW-7D, VE-1, CT-MW-8-87, and CT-MW-9-120) and from the three ' Texaco wells (TX-MW-8-50, TX-MW-14-49, and TX-MW-21-80). Prior to sample collection, the depth to water and was measured to the nearest 0.01 foot in each monitoring well, using an oil/water interface probe. LPH was not detected or observed in any of the wells ' during this quarterly monitoring event. Each monitoring well was purged a minimum of three casing-volumes of groundwater with a ' dedicated Waterra sampling system. Water quality parameters (temperature, pH, and specific conductance) were measured utilizing calibrated field instruments. All reusable sampling equipment was thoroughly washed with a Liquinox solution and then rinsed with distilled ' water before, during, and after each well was sampled. The purged water from each monitoring well was stored in DOT approved 55-gallon drums and subsequently transported by PSC-Benicia to a licensed waste disposal facility located in Fernley, Nevada. ' Groundwater samples were collected in pre-cleaned, laboratory-supplied containers. The containers were sealed, labeled, stored on ice in a thermally-insulated cooler, and transported ' under chain-of-custody protocol to Kiff Analytical, LLC (Kiff), a state-certified analytical laboratory. One duplicate groundwater sample (MW-1DUP) was collected from MW-1 for quality assurance purposes. A travel blank accompanied the groundwater samples to Kiff. ' The groundwater samples, duplicate sample, and travel blank were analyzed for TPH-g, BTEX, and five fuel oxygenates (MTBE, DIPE, ETBE, TAME, and TBA) and fuel additives (1,2-DBA and 1,2-DCA)by EPA Method 826013. ' 2.2 Groundwater Elevations and Hydraulic Gradient During this quarterly event, the depth to groundwater was approximately 20.31 to 21.67 feet ' bgs. Wells MW-lA through MW-4A are generally screened across the sand and/or silty sand layer encountered between approximately 37 and 55 feet bgs and is referred to as the "A" Zone. Groundwater elevations ranged from -9.67 feet MSL in MW-3A to -9.85 feet MSL in ' MW-2A for the "A" zone wells. The groundwater elevations for wells MW-lA through MW-4A for this event indicate a hydraulic gradient and flow direction of approximately 0.001 foot-per-foot to the south for the "A" Zone. A groundwater elevation contour map for the ' "A" zone is presented on Figure 4. Current and historical groundwater elevations are presented in Tables 2 and 3,respectively. Quarterly Groundwater Monitoring Report First Quarter-January 2010 Prepared For:Sate Lee Bakery Group,Inc. Prepared By:PSC Industrial outsourcing,LP ' Sara Lee-Lincoln Street\20 10-01-Ql-QMR(Lincoln).doc May 10,2010 6