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ARS The Site lies on a very slight west-sloping plain approximately four miles east from the Port of Stockton Deep Water Channel. The elevation at the Property is approximately 25 feet above mean sea level. The Property is located in a mixed commercial and residential area that is characterized by several small commercial businesses and numerous single and multi-tenant residences. Based on review of groundwater investigation reports for sites in the immediate area, we would expect groundwater flow in the site area to be to the east-northeast. Subsurface soils in the vicinity generally consist of silts and clays down to at least 60 feet in depth. Shallow groundwater is generally encountered at depths ranging from 45 to 65 feet in the site vicinity. A sensitive receptors survey for a nearby site identified no water supply wells within the immediate site vicinity. 2.2 Site Background ARS conducted a Phase I Environmental Site Assessment for the Site in July 2012. Results of the Phase I ESA indicate that the Site has been occupied by the Save Mart building for approximately 60 years. The Phase I ESA revealed no evidence of significant hazardous waste storage or releases relative to this site use. It is possible that a gas station was present on the northeast corner of the Property in the late 1940s and early 1950s. City directories listed Knight Floyd gas station in 1946, and as R. W. Sudduth WV gas station in 1950 at 3342 East Main Street. This address appears to have been located at the northeast corner of East Main Street and Netherton Avenue, where the current Stockton Pharmacy is located. This possible former gas station represents a possible Recognized Environmental Condition for the Site. In order to assess this potential environmental concern, the Phase I ESA recommended conducing soil and possibly groundwater sampling on the Site. 3.0 DESCRIPTION OF FIELD ACTIVITIES The four investigative soil borings, B-1 through B-4, were drilled and sampled on Friday, August 24, 2012. All activities were conducted in accordance with applicable local, State, and Federal guidelines and statutes. 3.1 Prefield Activities Prior to conducting field activities, soil boring installation permits were obtained and 72-hour pre-field notification was given to the San Joaquin County Environmental Health Department (SJEHD). A copy of the SJEHD drilling permit is included in Appendix A. In addition, proposed boring locations were marked with white paint, and Underground Services Alert (USA) was notified at least 48 hours prior to drilling. Also, a private underground utility locator, ForeSite, cleared proposed boring locations, and traced below ground features on the site. PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 3 3310 & 3330 E. MAIN ST., STOCKTON, CA