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South Railroad spur, followed by Millard Refrigerated Services (730 Spreckels Avenue); Dre er's Grand Ice Cream 1351 Dupont Court East Railroad tracks followed by Highway 99 followed by agricultural land West Spreckels Avenue, followed by a vacant lot and American Modular Systems 757-787 Spreckels Avenue Based upon topographic map interpretation and groundwater monitoring for the Spreckels Sugar Company, groundwater beneath the subject property is inferred to flow to the northwest, and is present at an estimated depth of approximately 14-26 feet below ground surface (bgs). FINDINGS Recognized Environmental Conditions (RECs) are defined by the ASTM Standard Practice E1527- 05 as the presence or likely presence of any hazardous substances or petroleum products on a property under conditions that indicate an existing release, a past release, or a material threat of a release of any hazardous substances or petroleum products into structures on the property or into the ground, groundwater, or surface water of the property. AEI's assessment has revealed the following RECs associated with the subject property or nearby properties: • One large drain was observed within the subject property forklift washing area, located within the subject property warehouse. The drain reportedly leads to a round plastic aboveground storage tank (AST) totaling approximately 5,000-gallons, which is situated on concrete within a locked room directly beyond the fagade of the building. The contents of the AST are reportedly pumped out and transported off-site by a materials hauler. The washing area was significantly stained with rust-like staining, likely related to the forklift washing practices formerly employed at the subject property. Due to the unknown integrity of the drain lines, the floor drains have the potential to act as conduits to the subsurface of the subject property for any materials that are discharged to the drain lines. Furthermore, there is a potential for overfilling of the AST. Based on the quantity of staining observed in combination with the presence of the floor drain and the unknown types and quantities of hazardous materials and/or petroleum products used and stored onsite, AEI is unable to rule out the potential that release to the subsurface of the subject property may have occurred via the drain or tank overfill, representing evidence of a REC. Historical Recognized Environmental Conditions (HRECs) are defined by the ASTM Standard Practice E1527-05 as an environmental condition which in the past would have been considered a recognized environmental condition, but which may or may not be considered a recognized environmental condition currently. AEI's assessment has revealed the following HRECs associated with the subject property or nearby properties: • The Spreckels Sugar Company's beet sugar processing plant (also known as the Manteca Sugar Factory) operated from 1917-1995. This facility operated with unlined wastewater ponds that contaminated groundwater with elevated total dissolved solids (TDS), bicarbonate, calcium, chloride, nitrate, sodium, and sulfate. In addition to the wastewater ponds, additional features located on the former Spreckels Sugar site included lime ponds, mud ponds, aboveground and underground fuel storage tanks, cooling towers, disposal areas, cattle feed lots, railroad tracks, five septic systems, orchards and crop land. The majority of these features were located north and northwest of the subject property. The subject property is located in the east central portion of the former Spreckels Sugar site. The majority of the subject property was formerly occupied by wastewater ponds. A disposal area, known as Site B, which contained miscellaneous concrete rubble and a small Project No. 297376 AE1 June 22, 2011 Page iii Consultants