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i, and xylenes were detected at very low concentrations in soil stockpile samples CPTSP-C, CPTSP-E, CPTP-F and CPTSP-G. TPHg was detected in soil stockpile samples CPTSP-C through CPTSP-H. Concentrations of TPH-g were highest in CPTSP-C and CPTSP-F at 210 mg/kg and 390 mg/kg respectively. The remaining detections of TPHg ranged from 1.0 mg/kg in CPTSP-D to 2.8 mg/kg in CPTSP-H. TPHg was not detected above laboratory i reporting limits in CPTSP-A and CPTSP-B. Appendix B presents the analytical laboratory reports. , On the basis of the landfill weight tags supplied by Evan Brothers Inc., 71 tori§of stockpiled-soil- were,disposed as non-hazardous Class:II_materiaLkAltamont:Landfill-in.Stockton,-California_on:- 26 May 2005.---Appendix C includes copies of the landfill waste manifests. According to Mr.Harold Holland,the project manager for the City, all.ofthe-.remaining-soil from the deep = -, ,l stockpile_was.transp6f&d off--site to the'Marian-Towers parcels by-the City_-atNorth Lincoln-- , Street.and:Lindsay Street-formse as�fffbeheath a parkinglot.-_� 4.7 Soil Import and Backfill Prior to backfilling, Treadwell&Rollo personnel observed the contractor add 800 pounds of ORC®to the excavation. The ORC .was mixed with water in the excavator bucket and placed in the bottom of the excavation. Treadwell&Rollo personnel did not observe soil backfill and compaction procedures. According to Mr.Tom Rasica of Swinerton Builders, on 20 April 2005, all backfilling and compaction testing was overseen.by Kleinfelder&Associates. According to Mr.Rasica,soil used to fill the bottom 10-feet of the excavation was clean fill material that had been imported to the Site for construction purposes, and the soil excavated from the upper 15-feet of the excavation was replaced. 25971024.DGD 8 7 June 2005