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LIGHT, AIR & SPACE CONSTRUCTION ENVIRONMENTAL SERVICES COMPANY License Number 445403 R.E.A.Number 04072 The subject property consists of a trapezoidal-shaped parcel of land of approximately 7.9 acres improved with a one-story residence of about 2,500 square feet, garage shop of about 1,500 and small garden barn of about 800 square feet. Development near the property vicinity includes a concrete products yard and wood pallet manufacturer. The property is currently used as a residence. The subject property is located in an area of mixed rural and commercial development just south of Tracy in San Joaquin County, California. OBSERVATIONS AND CONCLUSIONS LA&S did not observe visual evidence of hazardous-material contamination, indications of hazardous material storage or disposal or use on-site,or identify significant concerns relating to PCBs,USTs, ASTs, Radon or Drinking Water at the subject property. No transformers were observed on-site. A possible recognized environmental condition(pipeline) is noted for this property. LA&S does note that given the age of the residence building, Asbestos Containing Building Materials(ACBM)and Lead-based Paint(LBP)may be present. Before any demolition or remodeling of the existing building/interiors is undertaken, appropriate sampling of suspect materials should be done. LA&S noted several engine motor blocks and transmissions from old vehicles,parked vehicles some paint containers and one 5-gallon sealed bucket of what appeared to be used motor oil. LA&S recommends that these items,together with other rubbish observed on the property should be properly disposed off-site. If ground stains are observed in relation to these items,then subsurface sampling and analyses may be wan-anted to ascertain whether surface soil has been affected. LA&S notes a 16-inch TOSCO/76 crude petroleum oil pipeline crosses the property in a 10-foot wide easement. The easement crosses the property from southeast to northwest,just west of the existing buildings. The current property owner has not reported any previous problems related this pipeline during their occupancy of the site. There were no reports of regulatory issues with the pipeline. This pipeline was recently surface marked by the oil company and the pipeline currently transports pressurized liquid crude petroleum oil. It is our understanding at the time of this report preparation that the prospective buyer(Mr. Vail)is contacting that oil company regarding the recent leak testing of the pipeline on the property and to verify the oil company responsibility regarding pipeline maintenance and cleanup should future pipeline work or leaks occur on the property. April 16 2003 Page 5 of 20 P.O.Box 36303 •SAN JOSE•CA•95158-6303 •408/979-0661 •408/979-0621 FAX•408/322-7325 PAGER GENERAL AND ENGINEERING CONTRACTOR•HAZARDOUS SUBSTANCE REMOVAL CONTRACTOR•SITE ENVIRONMENTAL ASSESSMENTS