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LK E/NFELDER BriBl.IheNe.RyMhlutiau • Parcel 3 had a former fueling area located near the current gate entrance at East Transportation Court from 1995 to 2004. This fueling area reportedly consisted of a 12,000-gallon diesel AST situated within secondary containment, and two fuel dispensers. According to Mr. Lloyd Farmer, former owner of this parcel, in August 2005, an unknown amount of diesel fuel was released during fueling of a truck near the northern dispenser. Impacted soil was excavated and disposed offsite by JTO. Composite soil samples were collected from the sidewalls of the excavation and soil stockpile, and analyzed for the presence of TPH-d and BTEX. TPH-d was reported at a concentration of 4,250 mg/kg in the composite sample analyzed from the soil stockpile, and 58 mg/kg in the composite sample from the excavation. In addition, toluene, ethylbenzene and xylenes were reported in the stockpile sample at concentrations of 5.7 mg/kg, 25 mg/kg, and 353 mg/kg, respectively. A second composite soil sample was collected from the excavation sidewalls. No TPH-d or BTEX concentrations were reported in the second sample. Detailed information documenting the excavation, sampling, and disposal activities was not available in records reviewed. However, based on the non-detect or low concentration (58 mg/kg) of TPH-d detected in the composite samples collected from the excavation, and because contaminated soil was removed, this release is not considered a REC likely to have impacted soil, soil vapor or groundwater beneath the Site. A non-operational fueling island and two empty 12,000-gallon diesel ASTs are presently located along the central-eastern border of Parcel 3. The ASTs are reportedly dual wall without exterior secondary containment. Minimal staining was observed in this immediate area and since no spills were documented, this area is not considered a REC likely to have impacted soil, soil vapor or groundwater beneath the Site. • In April 2014, approximately 50 to 100 gallons of Nue Carbo-chelate (organic fertilizer) was spilled from a storage tote in a truck trailer, impacting the asphalt surface beneath it, on Parcel 3. The spill was reportedly cleanup up the truck operator with an absorbent material. Upon inspection, the SJCEHD reported that the asphalt was dry, but was slightly stained. Based on the type of chemical released, and because the release was to asphalt pavement and reportedly mitigated the same day, the release of the Nue Carbo-Chelate at the Site address 161 Transportation Court is not considered a REC likely to have impacted soil, soil vapor or groundwater beneath the Site. • No off-Site facilities were found to represent a REC to the Site, or likely result in vapor migration through soils onto the Site. 20172543.001A/ST016R49461 Page 50 of 54 November 2, 2016 ©2016 Kleinfelder �Aleinfelder.com