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i <br /> { DAMES &-MOORE A PROFESSIONAL LIMITED PARTNERSHIP <br /> Parc Gas&Electay Co. <br /> Page 6 <br /> Subsoils which were excavated from the tank removal pit bottom were segregated in stockpiles at.the site and within <br /> the tank removal excavation.In the event the SJCEHD concurs with site closure for the tank pit area,the soils <br /> which have exhibited low to"non-detected concentrations.of petroleum constituents are understood to be acceptable <br /> for tank pit backfill.However,these overexcavated soils will likely require placement within the upper few feet of <br /> backfilled area,atop clean imported fill soils'backfilled in the excavation. <br /> It was understoodfrom our discussions with PG&E that previously excavated and chemically analyzed overburden soils <br /> are to be"disposed of in an approved manner.At such time as the contaminated soils are transported to the <br /> appropriate"facility,proper documentation of transportation and disposal can be provided to the SJCEHD. <br /> Should you have any questions or if you wish to discuss this workplan in more detail,please contact me at(209) <br /> 222-7892. <br /> Respectfully submitted, <br /> DAMES&MOORE <br />{ <br /> William Stolp <br /> Associate <br /> Jeffrey S.Palmer,REP <br />" Senior Environmental Engineer <br /> PG&E Stockton Service Center" <br /> 00160-290-042 <br />