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1 <br /> Mr Michael Infurna <br />' Page 2 of 6 <br /> Argon Laboratories, Inc (Argon), a California-certified hazardous waste testing laboratoryELAP <br /> #2359), completed the laboratory analyses for all samples Mr Michael of San Joaquin County <br /> Environmental Health Department (EHD) conducted the grout inspections and observed field <br />' activities Morrow Surveying performed the wellhead survey <br />' 2.0 INVESTIGATIVE PROCEDURES <br /> In accordance with the approved workplan, groundwater momtonng wells MW1D, MW5, MW6 and <br />' MW7 were installed to further evaluate the nature and extent of sora and groundwater impact <br /> 2.1 Permitting <br /> IPrior to initiating fieldwork, well installation permits were obtained from EHD, and encroachment <br /> permits were obtained from San Joaquin County Department of Public Works All fieldwork was <br />' performed in accordance with the Ground Zero's Site Safety Plan and Quality Assurance/Quality <br /> Control Plan <br />' 2.2 Drilling, Well Installation and Soil Sampling <br /> On November 18, 2003 through November 20, 2003 four soil borings were advanced and subsequently <br /> converted into groundwater monitoring wells <br /> V&W drilled and installed the monitoring wells under the supervision of field geologist Sean Garvey <br /> I and project manager Gregory Stahl, a California Registered Geologist Mr Michael Infurna of EHD <br /> conducted the grout inspections and observed field activities <br /> Boring MWID was drilled at a location approximately 20 feet northwest of MW1 Boring MW5 was <br /> drilled approximately 210 feet southwest of MW I Boring MW6 was advanced approximately 120 <br /> feet northwest of MW1, and boring MW7 was advanced approximately 160 feet southeast of well <br /> MWI Soil boring/momtonng well locations are shown on Figure 2 <br /> Each boring was advanced to total depth using a drill ng equipped with 8-inch diameter hollow stem <br />' augers Soil samples were collected with an 18-inch long core sampler lined with new 2-inch <br /> diameter brass sleeves, affording soil identification and subjective evaluation for contamination <br /> Soil was classified by traditional soil logging techniques using ASTM Designation D2488-90, which <br /> is equivalent to the Unified Soil Classification System A photo-ionization detector (PID) was used <br /> to monitor for the presence of volatile organic compounds (VOCs) in the soil Soil samples selected <br /> for laboratory analysis were sealed, labeled, and immediately placed in an ice chest refrigerated to � <br /> I approximately 4°C Soil sample selection was based on field observations and screening results The <br /> samples were transported to Argon under chain of custody protocol to be analyzed for TPHg, BTEX <br /> and gasoline additives Soil boring/well construction logs are included in Attachment A <br />•IAll down-hole drilling and sampling equipment was decontaminated before and between uses by <br /> steam cleaning Soil cuttings and rmsate were contained in DOT certified 55-gallon drums and <br /> temporarily stored on site pending proper disposal <br /> I11GZA_FSIVOL_IIDATAIGROLINDZEIHARRYS\Reports\Well Report2 doc <br />