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DAMES &. MOORE - <br /> 1 Pacific Gas&E eCtrrc o. A PROs ESSIONAL LIMITED PARTNERSHIP <br /> Page 6 <br /> T <br /> Subsoils which were excavated from the tank removalpit bottom were segregated in stockpiles at the site and within C <br /> 1 <br /> the tank removal excavation.In the event the Si <br /> CEHD concurswith site closurefor 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 I <br /> backfilled area, atop clean imported fill soils backfilled mi the excavation. <br /> i <br /> It was understood from 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 /> } <br /> Should you have any questions or if.you wish to discuss this workplan in more detail,please contact me at(209) k <br /> 222-7892. <br /> t <br /> Respectfully submitted, <br /> DAMES&.MOORE <br /> F <br /> c ay E <br /> I <br /> -William Stolp <br /> Associate <br /> Jeffrey S.Palmer,REP <br /> Senior Environmental Engineer <br /> I <br /> I <br /> - - E <br /> PG&E Stockton Service Center <br /> 00160-290-042 <br /> - f <br />