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FROM Ground Zero Analysis PHONE NO. 209 1338 9BB3 Feb. 15 2030 05:01FM F <br /> r <br /> Mr.Harlan Knoll <br /> 'I <br /> February 15, 2000 <br /> Page 4 of 4 <br /> .c <br /> excavatiorj with clean imported and native fill. <br /> Since groundwater is anticipated in the excavation pit, ound Zero proposes to pump up to 40,000 <br /> gilons of groundwater from the excavation pit to dev ater the excavation during digging and to <br /> remove a significant volume of contaminated growiter- The groundwater will temporarily be <br /> stored on site in 21,000 gallon portable liquid storage . Samples will be collected from the F <br /> storage tams to profile dissalved contaminants in th groundwater. Analytical results will be <br /> submitted to Sacramento County Regional Waste Nater Treatment.Plant for acceptance of the water <br /> far disposal. Upon acceptance, the groundwater w it be ftnTorted by tanker truck to the <br /> Sacramento County Regional Waste Water Treatment Plant, whirl► is located approximately 20 <br /> miles north of the site in Elk Grove. <br /> Fieldwork will be conducted in accordance with the sit specific Health and Safety Plan and Quality � <br /> ControllQuality Assurance Plata on file with PHVFM. ; <br /> Following the completion of all field work, a technical report will be submitted detailing the <br /> methodology and results of the medial actions, <br /> 5.0 SCIITEDULE <br /> It is anticipated that excavation and groundwater pum ing can be completed within two weep <br /> fallowing approval of the Workplan. Sail profiling a id spreading for aeration can be completed <br /> within two to three weeks after excavation and sampli rig has been completed. As time is of the <br /> essence,Mr_Manser would like to begin excavation a tivities as early as the week of February b <br /> 22,2000- Technical reporting should bcoompleted W April 30,2000. J <br /> please contact Ground Zero at your earliest convenience if you have any questions or comments <br /> negar"ding this report. <br /> Respectfully, <br /> Ground Zero Analysis,Inc. JOHN F. <br /> LAIC <br /> No.67$ , <br /> John P.Lane <br /> CA Registered Geologist No,6725 <br /> Attachments <br /> cc: Mr.Mike Manser <br /> Ms_Marla Nahorn,Environmental Closures <br /> W.Marls List,RWQCB <br /> i <br /> �_1TfafnLriR�tllJD�.6YM/1P�SLRY[14anser 4Yirtt�'iitcw[�.4� <br />