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KLEINFELDER `- We do not know of any existing and/or potential groundwater contamination issues in the project vicinity. There are no existing gas stations or dairies adjacent to the property. Seasonal fertilization of the orchards both on- and off-site is probably the largest contributor of nitrogen to groundwater in the project vicinity. On June 23, 2003, a representative with our firm obtained samples of groundwater using clean procedures from a faucet approximately 150 feet east of the domestic well near the northwest corner of the subject property. The samples were immediately placed in a chilled cooler, transported to our office, and stored in a refrigerator until they were picked up the next day by Sequoia Analytical using chain-of-custody procedures for DBCP and nitrate (N) testing. The results of the tests and a copy of the chain-of-custody are attached. 5. SOIL PROFILE The subsurface conditions at the site were explored at about 8:00 am on August 18, 2003, by drilling one boring to a depth of approximately 16 feet below existing grade. The boring was drilled using a Simco 2400 truck-mounted drill rig equipped with 6-inch O.D. solid-stem auger. The approximate boring and percolation test locations and approximate dimensions from reference points are presented on the site plan. Based on our findings, the subsurface soils encountered consisted predominately of silty sand_to a death of about 11 feet below the existing site grade underlain by interbedded silt and sand strata to the maximum depth explored. A more-detailed description of the subsurface conditions encountered during our field investigation is presented on the attached Log of Boring. Based on our prior experience, the moderately-permeable, near-surface sand in the project area yields percolation tests passing SJCEHD percolation requirements. As requested by Mr. Mike Huggins of the SJCEHD, soil samples were taken during the drilling of the soil profile boring and percolation holes. These samples were placed in sealable plastic bags, transported to our office, and stored in a refrigerator until they were picked up the same day by Sequoia Analytical using chain-of-custody procedures for Total Kjeldahal Nitrogen (TKN) testing. The results of the tests and a copy of the chain-of-custody are attached. The following table summarizes the sample locations and test results. Sample ID Location Depth, feet Test Result, mg/kg(or ppm) 21504 P-1 4 140 21505 P-1 7 97 21506 P-1 10 55 21507 P-1 15 52 L21508 P-2 3.5 to 4 370 6 21509 P-3 3.5 to 4 100 L L31917.G01/ST03Ri695 November 11,2003 ©2003 Kleinfelder,Inc. Page 3 of 7 L