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' THE <br /> IlTWININS <br /> LABORATORIES , INC . <br /> ANALYTICAL CHEMISTRY -ENV IRON MENTALSERVICES <br /> GEOTECHNICAL ENGINEERING °SAMPLING SERVICES <br /> CONSTRUCTION INSPECTION & MATERIALS TESTING <br /> July 18, 2006 <br /> Harlan Knoll <br /> San Joaquin County Environmental Health Department <br /> 304 E. Weber Avenue,Third Floor <br /> Stockton, California, 95202 <br /> RE: Addendum to Preliminary Assessment Workplan dated June 20, 2006, Proposed Retail <br /> Shopping Center, Intersection of French Camp and Manthey Roads, Stockton, California <br /> Dear Mr. Knoll: <br /> This work plan addendum outlines a proposed work scope in addition to the previously approved <br /> workplan(dated June 20,2006)to perform a Preliminary Assessment for the vacant property located <br /> at the northwest corner of the intersection of French Camp and Manthey Roads in Stockton, San <br /> Joaquin County, California(site). <br /> This work plan addendum was prepared by the Environmental and Geological Services Division of <br /> The Twining Laboratories, Inc. (Twining), located in Fresno, California. The proposed work is <br /> being performed at the request of Vestar Development Company (client) in connection with an <br /> impending real estate transaction and commercial redevelopment of the site. <br /> Site Description and Background: <br /> The site is located in Stockton, San Joaquin County, California, near the northwest intersection of <br /> French Camp and Manthey Roads, in Section 26,Township 1 North,Range 6 East,Mount Diablo <br /> Baseline and Meridian.The site elevation is approximately 15 feet above mean sea level. Drawing <br /> 1 is a site location map. <br /> This work plan addresses the field work to be conducted on the assessor's parcels number (APN) <br /> 168-19-06, APN# 168-19-07, and APN# 168-17-07. <br /> As part of issuing a geotechnical drilling/testing permit,San Joaquin County Environmental Health <br /> Department(SJCEHD)required that the Department of Toxic Substance Control(DTSC,Mr.Rick <br /> Fears)be notified and drilling discussed because of the site's close proximity to an asbestos disposal <br /> site. SJCEHD initially wanted geotechnical borings within parcel No. 168-19-06 (612 Henry Long <br /> Boulevard)be drilled under existing permit No. 0047165 while notification is given to the DISC. <br /> Twining gave notification and discussed drilling for geotechnical purposes with the DTSC,they had <br /> no exception to drilling but was going to discuss the site with SJCEHD, in event the county had <br /> exception. The county did not have any exceptions and would like to use the existing permit for <br /> parcel No. 168-19-07 from previous drilling(530 HenryLong Boulevard) for geotechnical borings <br /> as discussed below and that drilling on parcel No. 168-17-07,north of Henry Long Boulevard could <br /> be done following drilling the other parcels. <br /> Purpose and Scope: <br /> The purpose of the additional work scope is to assess the subsurface soil conditions at the site. As <br /> part of a geotechnical investigation for the retail development located at the northwest comer of the <br /> intersection of French Camp and MantheyRoads in Stockton,California,Twining would like to drill <br /> CORPORATE MODESTO CORONA BAKERSFIELD MONTEREY SACRAMENTO <br /> 2527 Fresno Street 5253 Jerusalem Court,Suite E 840 East Parkridge Avenue,Suite 104 3651 Pegasus Drive,#117 501 Ortiz Avenue 5675 Power Inn Road,Sui' <br /> Fresno,CA 93721-1804 Modesto,CA 95356-9322 Corona,CA 92879 Bakersfield,CA 93308.6843 Sand City,CA 93955 Sacramento,CA 95824 <br /> (559)268-7021 (209)342-2061 (951)898-8932 (661)393-5088 (831)392-1056 (916)381.9477 <br /> 9: v 090--yl)a C....c-l!,.— r_....inn nn-. 1_-.n ­..nnn.nen C--704_0A70 <br />