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Table 1 <br /> Preliminary Screen for Potential Vapor Intrusion Conditions Search Distance Test <br /> Non Petroleum Hydrocarbon Petroleum Hydrocarbon <br /> Chemicals of Concern Chemicals of Concern No.of Facilities <br /> Listed(within <br /> Surrounding the Upgradient of Surrounding the Upgradient of Search Radius) <br /> Site the Site Site the Site <br /> Federal. Approximate Minimum Search Distance(miles) <br /> Federal NPL Site List 1,3 1 1/10 I/10 <br /> Federal CERCLIS List 1/3 1/1 1/10 1/10 i <br /> Federal RCRA CORRACTS facilities 1/3 1 1/10 1/10 <br /> Federal RCRA non CORRACTS TSD facilities 1/3 1/2 1/10 1/10 / <br /> Federal Institutional Control/Engineering Control Registries site only _ site only _ �- <br /> Federal ERNS List site only - site only <br /> State <br /> State-equivalent NPL(I IisL Cal-Sites) 1'3 1 1'10 1 <br /> State-equivalent CERCLIS(RESPONSE) 1/3 1/2 1/10 1/2 / <br /> State Landfill and/or Solid Waste Disposal Site Lists 1/3 1/2 1/10 1/2 / <br /> Leaking Underground Storage Tanks(LUST) 1/3 1/2 1/10 1/2 3 <br /> Registered Storage Tanks(ASTs and USTs) site only - site only <br /> Institutional Control Registries [No State-equivalent for Eng. <br /> Controls] site only - site only _ / <br /> Voluntary Cleanup Sites 1/31/2 1/10 1/2 <br /> fii <br /> Browneld Sites F3 1.� 1'10 1.' <br /> Additional Environmental Record Sources <br /> DTSC EnviroStor 113 1/2 Ii10 1/2 Z, <br /> SLIC 1/3 1/2 1/10 1/2 41 <br /> Cleaner Facilities 1/3 1/2 1/10 1/2 / <br /> I/3 mile=1,760 feet <br /> 112 mile=2,640 feet <br /> 1/10 mile=528 feet <br />