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SECTION II-PRIOR INVESTIGATIONS A. SUBSURFACE INVESTIGATIONS BY OTHERS September 2010 — A Limited Phase II was conducted by PTS, Inc. (PTS), on behalf of a potential purchaser of the property. PTS drilled five shallow borings (i.e., to 5 feet bgs) and collected one soil sample from each at 3 feet bgs for laboratory analysis. The soil samples were analyzed for halogenated volatile organic compounds (HVOCs), TRPH, and total petroleum hydrocarbons as diesel (TPH-d). Laboratory data indicated impact in two of the five soil samples with heavy petroleum hydrocarbons (up to 1,100 mg/Kg) by USEPA Method 418.1. No TPH-d or halogenated VOCs were detected. PTS concluded that impacts to soil were below regulatory levels. B. PINNACLE ENVIRONMENTAL,INC.(PEI),INVESTIGATIONS July 23, 2010 - PEI completed a Phase I Environmental Site Assessment (ESA) report on the subject property on July 23, 2010. As a result of Recognized Environmental Conditions (RECs) discovered during that assessment, PEI proposed (January 23, 2012)—and was authorized to complete—a Limited Phase II Environmental Site Assessment at the subject property. April 25, 2012 - PEI completed a Limited Phase II included a subsurface assessment conducted in accordance with the January 23, 2012, proposal. The scope of work included the sampling and analyses of soil vapor from 26 locations, soil matrix from 50 (including 26 soil vapor, 20 soil, 4 groundwater) boring locations, and groundwater at four locations for VOCs and TPH-carbon chain analysis. In addition, eleven soil samples were analyzed by USEPA Methods 8270 (SVOCs), 8141A (organophosphorous pesticides), 8081 (organochlorine pesticides), 8151A (chlorinated herbicides), and CAM 17 metals. Site sampling locations are shown on Figure 6. PEI concluded the following areas at the subject property warranted additional subsurface assessment: Septic Tank Area - Concentrations of benzene and 1,2-dichloropropane were found to exist above MCLs in groundwater samples collected in association with the septic system investigation. Two UST Graves - Two UST graves were detected outside the southeast corner of the building during the geophysical survey. Observations made by PEI during excavations of the two UST graves were that visual signs of historical impact underlie these graves. No significant soil impact was noted in shallow soil samples collected from borings at these two locations (viz., S13-104, SB-106 & S13-108, and SV-5 and SV-7) within and adjacent to the building. Building Interior - Two anomalous large concrete patches were noted in the floor within the warehouse. The patches were located approximately at the northeastern and southeastern corners of the building. (See Figure 6.) The results of laboratory analyses from soil samples in both of these locations indicated the presence of high concentrations (above regulatory standards) of both diesel range(C11-22) and motor-oil range (C23-C35) hydrocarbons. Specifically, soil sample SB-112 at a depth of 10 feet indicated diesel and motor-oil range hydrocarbons at 20,600 and 48,200 mg/kg, respectively.