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Page 2 Cabral—Mc Adams Property April 28,2006 Job No. 1828-092.01 parcel numbers (APNs) for the property are 115-230-06 and 115-230-07. The majority of the site has supported orchards for more than 100 years. A number of residences and out-buildings are situated within the central portion of the site along an access road that traverses the property. Our firm prepared a Phase I Environmental Site Assessment of the property dated October 5, 2005. ' Our study revealed a number of conditions warranting further investigation, including: the potential for pesticide contamination (including lead and arsenic from potential past application of lead-arsenate) within the orchard areas and near outbuildings; the potential for petroleum hydrocarbon and metals contamination to surface soils near the buildings; and, the potential for petroleum hydrocarbon contamination in the vicinity of a former 1,000-gallon underground gasoline storage tank that was removed in 1989. Our firm performed a number of direct-push borings late 2005 and early 2006 to evaluate the former underground storage tank area; the results of the tank area investigation are presented under separate cover. SAMPLING ACTIVITIES General All sampling activities were performed by a Professional Geologist from our office. The locations of the soil samples are shown on Plates 2 through 6. Soils samples were collected by v hand using either a steel trowel or sampling augur. The near-surface soils encountered generally consisted of brown silty fine sands and sandy silts; no visual or olfactory evidence of significant contamination was observed at the sampled locations. The sampling equipment was decontaminated prior to use and between sampling events in order to minimize the chance of cross-contamination. A new pair of disposable nitrile gloves was worn during and between soil sampling activities. Soil samples were collected in either laboratory-provided four-ounce glass jars or six-inch brass sleeves that were sealed with Teflon tape and plastic end caps. All samples were given discrete sample numbers, placed on ice, and transported with chain-of-custody documentation to a State-certified laboratory for analysis. Labeled wooden lath or plastic tassels were set at each sampling location so that the locations could be identified at a later date if necessary. October 2005 Soil Sampling Pursuant to the recommendations of our referenced Phase I Environmental Site Assessment, our firm collected "screening" soil samples on October 17, 2005. Eight surface soil samples were collected at locations S1 through S8 within the orchard areas (see Plate 2). Four surface soil samples were collected at locations S9 through S12 within the area of the woodbarn located on the northerly most portion of the property (see Plate 3). Four surface soil samples were collected at locations S13 through S16 within the area of the workshop (see Plate 4). One surface soil sample was collected at location S17 near a detached garage associated with the ' Raney Geotechnical, Inc., "Phase I Environmental Site Assessment, Cabral Property, APNs 115-230-06, and-07, 4202 through 4208 Sutter Street,Stockton,California";October 5,2005,Raney Reference No. 1828-092.