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25 November 2015 AGE Project No. 15-3594 Page 17 of 26 3 . 5, PROVIDED SUBJECT PROPERTY RECORDS AGE reviewed copies of two laboratory reports detailing analysis of soil samples collected from the subject property in August 2005 , by GeoAnalytical Laboratories, Inc. According to Mr. Lloyd Farmer, property owner, stained soil caused by a release of diesel fuel to the ground , was cleaned up/excavated from the property in August 2005 . On 17 August 2005 three-to-one composite soil samples were collected from the sidewalls of the excavation area as well as from a soil stockpile . Soil samples were then analyzed for total petroleum hydrocarbons as diesel (TPH-d) and benzene , toluene , ethylbenzene and xylenes (BTEX) . TPH-d was reported at a concentration of 58 milligrams per kilogram (mg/kg) in the composited sample collected from the excavation . TPH-d , toluene , ethylbenzene and xylenes were reported in the stockpile sample at concentrations of 4 , 250 mg/kg , 5 . 7 mg/kg , 25 mg/kg and 353 mg/kg , respectively . On 19 August 2005 a second three-to-one composite soil sample was collected from the excavation area sidewalls , and analyzed for TPH -d and BTEX. No detectable concentrations of TPH-d or BTEX were reported in the sample indicating no contamination remained in the excavation . Copies of the August 2005 laboratory reports are provided in Appendix E . 3 .6 . VAPOR ENCROACHMENT CONDITION The encroachment of hydrocarbon and volatile organic compound (VOC) vapors into soil pore space occurs when organic chemicals migrate from contaminated groundwater or soil into the airspace between soil particles . Some typical organics involved are petroleum based or chlorinated solvents (e .g , BTEX and dry cleaning chemicals) . They may have leaked into the groundwater and/or soil from underground storage tanks , or buried waste , or from disposal in septic systems . In compliance with ASTM Standard E2600-10 (Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions) , AGE evaluated the potential for a Vapor Encroachment Condition (VEC) at the subject property . Based on a VEC screening , it was determined that 'a VEC is unlikely to exist' at the property' . A copy of the AGE-generated Tier 1 VEC screening form is provided within Appendix E . 4.0. SITE RECONNAISSANCE A subject property site reconnaissance was conducted by an AGE representative on 17 November 2015 . At the time of the site visit the weather was clear and warm . Primary features of the property are shown in a site plan provided in Figure 2. Photographs of selected features of the subject site are included in Appendix A. Advanced GeoEnvironmental, Inc.