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Based on Live Oak's experience in the Delta areas west of Stockton, ground water was anticipated to exist less than ten feet below the ground surface. Live Oak excavated one ground water boring on each proposed numbered parcel on the Site to 8.5 feet below ground surface. The ground water borings were advanced ' \ adjacent to the percolation test holes discussed below. Ground water was encountered at a depth of 6.0 feet on Parcel 1, 5.0 feet on Parcel 2, and 5.5 feet on Parcel 3. No water was encountered to the full depth of 8.5 feet on Parcel 4. The direction of ground water flow in the area was not determined and is highly dependent on irrigation activities. Potential Ground Water Contamination Issues The Soil Suitability Study is not intended to be an investigation into ground-water contamination sources, and no such investigation was conducted. Many sources can contribute to ground water contamination, including leaking underground storage tanks, agricultural activities, dairies, septic systems, and storm water infiltration. Agricultural activities and the use of septic systems in the area are known ground-water contamination sources with the potential to impact the Site. Live Oak reviewed the EHD's Water Well Data Table dated March 10, 2009 for nearby addresses that have been tested for nitrate and dibromochloropropane (DBCP). The Site address of 111 North Zuckerman Road was listed. A public water well at that address was tested for nitrate and DBCP in 2003; neither was detected. Two nearby wells were identified at addresses located within approximately one-quarter mile of the Site. Neither of the wells had been tested for DBCP. Nitrate as NO3 was not detected in either well. On-Site Wells As indicated on the site map (Plate 3), two domestic water wells are located on the Site. These wells serve the packing shed and the farm labor housing area. Although the vested tentative parcel map prepared by KSN (Plate 2) depicts a third well near the shop on the Site, the client has indicated that there is no well at that location. Seven well permits were on file at the San Joaquin County Environmental Health Department for the Site address: • May 2003 permit for well destruction (location unclear). • May 2001 permit for new public well at packing shed. • April 1983 permit for new public well at office. • March 1981 permit for new domestic well at labor camp (Camp 21). • February 1979 permit for new domestic well at labor camp (Camp 21). • May 1983 permit for new pump installation at domestic well at shop. LOGE 1213 Page 4