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'WORK PLAN SOIL-AND GROUNDWATER SAMPLING - - - BY DIRECT PUSH GEOPROBE Gateway Project,Portion of Block 37 _ V�7 City of Stockton March 10,2000 I. INTRODUCTION ry - This work plan was prepared.,by Condor Earth Technologies, Inc. (Condor)-to describe..-,soil and groundwater investigation utilizing Geoprobe direct push technology at the Gateway Project, Stockton, California.,The site 'is located south of Lafayette Street between El_Dorado Street and Center Street-in Downtown Stockton:''.Thc:.purpose'of the'proposed limited subsurface investigation is to evaluate the .o .. iE s _ . . p petroleum hydrocar_�on contamt�iatton`in soil and/or-groundwater.related to one or more. �- potential for etrole .- . - underground storage tanks (USTs) formerly located at the site. This work plan was prepared at the request of Mr. Ron 1 almquist of the'City of Stockton; Ms. Suzanne Sullivan of Suzan ne Sullivan.Real. Property Services,and Ms.Deedee Antypas of Siegfried.Engineering;Inc. (Siegfried). L All work conducted by Condor_wilfµ a under,thei` upervision of a California Registered Geologist. This _ work plan includes project background information, a description'of the field, laboratory and reporting procedures proposed'to conduct the work,'and a project schedule: 2. PROJECT BACKGROUND - The site contained two underground storage tank (UST}sites associated with past uses of the site, and it , is believed that at least one tank has leaked in the'past. The two tanks were located immediately'adjacent to El Dorado Street approximately midway between Lafayette and the existing structure fronting Sonora Street. The scope of work described in this work planwas-preparedin accordance with the approved:: work order received by Condor on February 28,`2000. After the receipt of the work order, Condor met- _ with Ms. Deedee A,itypas},at the prajectysite.to'�review the work performed to'-date, 'and to mark the location of potential borings on El Dorado The work.. includes; subsurface 'investigation, laboratory testing, and preparation of a report...,We a =-: _ - understand that any notice of site-contamination to other regulatory agencies will be the responsibility of 4. the City of Stockton.—".. -.