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I21 May 2003 <br /> i AGE-NC Project No 95-0130 <br />' Page 6of16 <br /> • Permittmg and pre-field work activities, <br /> • Drilling and installation of ground water extraction wells, <br /> • Installation of underground remediation piping system, <br /> • Installation of soil vapor extraction system, <br />' • Installation of ground water pump-and-treat system, <br /> • Interim remediation start-up period, <br /> I • Monitoring and maintenance, <br /> • Preparation of reports <br /> Each of these tasks are discussed below in detail � <br /> 3 1 PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> • Applicable site permits will be obtained from the City of Stockton (i a sanitary sewer waste <br /> discharge,building , electrical, etc ), from the SJCEHD (i e drilling/well installation permits) and <br /> I from the San Joaquin County Air Pollution Control District (SJCAPCD) In addition, an update to <br /> the health and safety plan presently on-file will be prepared in accordance with Occupational Safety <br /> and Health Guidance Manual for Hazardous Waste Site Activities (National Institute for <br />' Occupational Safety and Health Administration, U S Coast Guard and U S Environmental <br /> Protection Agency, 1985) Prior to mobilization, all underground trenching areas will be clearly <br /> marked and a utility clearance obtained through Underground Service Alert <br /> 1 <br /> 32 INSTALLATION OF REMEDIATION WELLS <br />' Currently, SVE wells VW-1,VW-2 and VW-3 are screened through the vadose zone and located in <br /> the core-area of the soil petroleum-impacted area at the site Based on the results of the SVE pilot <br />' test conducted at the site in January 1996, a theoretical radius of influence of 30 feet was estimated <br /> for SVE, the estimated SVE radius of influence at wells VW-1,VW-2 and VW-3 and the core-area <br /> of petroleum-impacted soil are depicted in Figure 4 Utilization of wells VW-1, VW-2 and VW-3 <br />' for an interim remediation SVE system should be adequate to cover the core-area of petroleum- <br /> impacted soil <br />' Based on the results of the ground water capture zone analysis performed on 06 September 2002, <br /> installation of two ground water extraction wells,screened in Hydrologic Unit 1 (30 to 55 feet bsg), <br /> IAdvanced GeoEnvironmental,Inc <br /> I <br />