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X SHARP Management Manual +,R•a Former Tracy MGP Project Safety Plan(PSP) SECTION 2 - SCOPE OF WORK 2.1 SCOPE OF WORK Parsons, in their contracted role with Pacific Gas and Electric Company (PG&E), is providing Engineering Support/Site Oversight services for the work as specified in the Contract #4400000411. Parsons will act as the prime contractor for the investigation of the PG&E Former Tracy Manufactured Gas Plant (MGP) site. In this role, Parsons will oversee a yet to be determined drilling contractor that will implement the investigation at the Site. In addition, Parsons will collect samples for analysis to determine if there are potential impacts to soil, soil gas and groundwater at the site. PG&E retains the right to determine how many samples will be collected and what additional actions are required. Also, Parsons will have contractual authority/responsibility associated with the drilling contractor. The Former Tracy MGP site(site) is located at 502 E. Grant Line Rd., in Tracy, California. The site occupies approximately 5.22 acres of property. The Site is bound to the north by the existing PG&E substation which feeds a majority of the Tracy area; to the south by Hines Field, a vacant lot; to the east by a recently constructed industrial park; and to the west by railroad tracks owned by Southern Pacific. There are also residential properties located southwest of the Site just beyond the Southern Pacific Railroad right-of-way. The Site is currently owned by the PG&E and is used as a Service Center and electrical substation. An initial site assessment was performed on the property in October 1988. The following Site contaminants were identified as contaminants of potential concern (COPC):"Polycyclic Aromatic Hydrocarbons (PAH); Total Petroleum Hydrocarbons(TPH); benzene, toluene, ethylbenzene and xylenes (BTEX); and heavy metals. Parsons is contracted by PG&E to oversee the following scope of work: • Perform additional site characterization to further define the lateral and vertical extent of impacted environmental media as a result of previous MGP operations. • Provide sufficient data in support of the risk assessment that will evaluate and characterize potential human health and environmental threats to current and reasonably expected future human receptors posed by site-related contaminants in affected environmental media. • Provide sufficient data to develop and evaluate remedial action alternatives. 2.2 PROJECT SVETYPLANAPPLICATim This PSP and referenced documents applies to all locations, facilities, operations, and projects associated with contract work performed by Parsons and its subcontractors. Locations/sites covered under this contract include PG&E Former Tracy MGP site, 502 E. Grant Line Rd. in Tracy, California. 5