SITE INFORMATION AND CORRESPONDENCE

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Scope of Work 7 Canepa's Car Wash — 6230 Pacific Street June 21 , 2001 Page -2- TASK 3 — Site Preparation • This task includes a site visit to mark boring locations for underground and overhead utility clearance and to review any utility drawings provided by the client. TASK 4 — Cone Penetrometer Testing and Groundwater Sampling • Condor will conduct CPT to assess the site lithology, soil contamination, and groundwater contamination . In three locations, the CPT will penetrate to approximately 35 feet below grade and take soil samples just above and just below the existing water elevation . In three different locations, the CPT will penetrate to approximately 120 feet below grade to assess the site lithology. Based on the lithology, the CPT will be used to take discrete groundwater samples at an estimated three depths between 70 and 120 feet below grade. TASK 5 — Monitoring Well Installation, Development, and Surveying • Condor will install 6 new monitoring wells. Three monitoring wells will be installed to a depth of approximately 100 feet. Three additional wells will be installed to a depth of 45 feet. The shallow wells will have slotted casings that extend above the existing groundwater elevation . Limited soil sampling will occur as part of the well installation. Groundwater monitoring will be conducted as part of quarterly monitoring. TASK 6 — Report Preparation • Condor wil I prepare a report on the additional investigation activities and results . TASK 7 — Quarterly Monitoring of New Monitoring Wells for One Year • Condor will conduct continued quarterly groundwater monitoring at the site. The quarterly groundwater monitoring program consists of collecting groundwater elevation measurements from the eight existing monitor wells and a groundwater sample from the existing monitor wells and one of the nine site SVE wells. One year (four quarters) of groundwater monitoring of the new wells are included in this scope of work. For each monitoring event, groundwater samples collected from the monitor wells and SVE well will be analyzed for benzene, toluene, ethyl benzene, and total xylenes (BTEX), and MTBE by EPA Method 8020 and total petroleum hydrocarbons quantified as gasoline (TPH-G) by EPA Method 50301LUFT. For each monitoring event, Condor will prepare a quarterly groundwater monitoring report for submittal to the CRWQCB and the SJC PHS/EHD. Each report will include site background information, a description of the field work and monitoring results, a discussion of well monitoring data to date, site maps showing groundwater elevation and chemical iso-concentration contours, and laboratory reports that include analytical methods, sample detection limits, and results of the analyses. \\Pdc\projects\1707 Canepa-Pacific\Contracts\2001 Addendum\WorkScope6.21 .01 .doc