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C � r E ll,T ' CONDOR EARTH TECHNOLOGIES INC. 1125 N. Golden State Blvd. 188 Frank West Circle t Suite G Suite I October 30, 2000 Turlock, CA 95381 Stockton, CA 95206 (209) 668-9256 (209) 234-0518 tFAX (209) 668-9257 FAX (209) 234-0538 Mr.Kevin Dougherty ' First Commercial Real Estate 2920 Pacific Avenue Stockton, California 95204 ' Re: Exploratory Excavations at Elks Lodge,Condor Project No.3073E ' Dear Mr. Dougherty, On September 22, 2000, California Geophysical Group, Inc. performed a ground penetrating radar(GPR) survey at the Elks Lodge project site (Figures 1 and 2). Several locations were identified as possibly ' containing buried metal objects, such as underground fuel tanks or metal scraps. On September 29, 2000, Condor supervised excavations of several of the areas identified by the GPR study in an attempt to determine the nature of the items in the subsurface that produced the observed radar reflections. The ' location of the September 29, 2000, excavations is shown on Figure 3. The attached geological logs illustrate the materials, both natural soil and fill materials, found in the ' excavations based on visual description of the materials. The native soil is a stiff, moist clay and was found at depths ranging from 2 to 2 1/2 feet below ground surface (bgs). Fill material above the clay generally consisted of a clayey sand with bricks, pipe, bottles, metal scraps, and other debris. All pipes ' found were checked for petroleum hydrocarbon odors, and none were detected. The excavation locations were chosen to determine whether hazardous materials might have been disposed of in these locations.No hazardous materials were found in any of the excavations. No underground storage tank was found at any excavation.No petroleum hydrocarbon staining or odors were evident in any of the excavations. On October 11, 2000, Condor supervised excavations of several test pits in the southeast portion of the site that was identified as an automobile wrecking yard on the Sanborn Map included as Figure 4 in ' Condor's Environmental Site Assessment Report dated August 15, 2000. Six test pits, shown on Figures 3 and 4, were excavated for the purpose of determining if contamination resulting from the operation of the wrecking yard was present in this area. ' Small auto parts were found in the upper 6 to 24 inches of soil in five of the six test pits. In test pits 10, 11, and 12, the soil that contained the auto parts had a moderate to strong hydrocarbon odor in some areas. The soil with the strong odor was generally dark gray to black in color, and was weakly cemented, possibly due to hydrocarbon residue in the soil. This soil is generally found in the area approximately 50 feet north of the fence along W. Sonora Street to approximately 100 feet north of the same fence, and ' approximately 80 feet west of the fence along S. Center Street to at least 120 feet west of the same fence. Test pits 10 and 1 I were excavated near the edges of a concrete pad in the west-central part of the area investigated. The hydrocarbon odor was strongest in test pit 10 in the area adjacent to the concrete pad. Using a Photo-Ionization Detector (PID), hydrocarbons were detected at a concentration of 8.3 parts per 1 ENVIRONMENTAL GEOLOGICAL ENGINEERING GEOTECHNICAL ' http://www.condorearth.com