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3.7 Disposition of Excavated Soil <br /> If necessary, excavated soil will be stockpiled on and covered with <br /> P plastic sheeting pending <br /> analytical characterization and disposition planning. The paved area in the northwest corner of <br /> 1!I the property is proposed as the soil management site. <br /> O Two disposition options are presented. The first option involves off-site disposal and the second <br /> option includes beneficial re-use. <br /> 3.6.1 Off-Site Disposal-Option <br /> Prior to excavating, the yet-to-be-excavated soil will be pre-profiled for disposal, based on existing <br /> analytical data. This will permit the direct loading of impacted soil into trucks for immediate <br /> transport to the approved disposal facility. <br /> During the initial excavation operations, any obviously "clean" overburden soil will be screened <br /> with a photoionization detector (PID), segregated and stockpiled on site. The stockpile will be <br /> bermed for leachate control, constructed on plastic sheeting and covered. i <br /> Four soil samples will be collected'from each 50 cubic yards of soil for laboratory composite and <br /> analysis. Soil samples will be collected in brass sleeves, capped, labeled and stored in an iced <br /> 1 cooler for transport to a state of California certified hazardous waste testing laboratory. Each of <br /> the soil samples will be analyzed for TPH-as-diesel, TPH-as-gasoline, BTEX, MTBE and total <br /> lead. <br /> If analytical results confirm that the stockpiled overburden_ soil is free of petroleum hydrocarbons, <br /> it will be either re-used as backfill or disposed of on-site. Any impacted stockpiled soil will be <br /> loaded into trucks and transported to the approved off-site facility for disposal. <br /> 3.6.2 Beneficial Re-Use Option <br /> To beneficially re-use the soil, a re-use plan must be prepared. The plan would include a <br /> sampling and analysis pian that statistically characterizes the material, a evaluation of the <br /> suitability of the material in its planned construction use, and a study of the soil and hydrogeologic <br />-- -- _—conditions'at-the re-use site. <br /> 9 <br />