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V #r PHASE H ENVIRONMENTAL SITE ASSESSMENT WORK PLAN V APN-149-200-10 Stanislaus Street L* Stockton, Stanislaus County 1.0 INTRODUCTION This Work Plan for a limited Phase II Environmental Site Assessment (ESA) for the property designated LM by Assessor's Parcel Number(APN) 149-200-10, located at South Stanislaus Street, Stockton, California (site), has been prepared at the request of Mr. Charles Holden of Monte Vista Entitlement, Inc. (client), the prospective property buyer, by Condor Earth Technologies, Inc. (Condor). The site property is located ` midway on Stanislaus Street between Main Street, to the north, and Market Street, to the south, in Stockton, as shown on Figure 1. The purpose of the site work is to investigate if the site soil has been impacted due to a potential hydrocarbon release from a suspected underground storage tank (UST) L. located proximal to the northeastern boundary of APN 149-200-10. All work conducted by Condor will be under the supervision of a California registered geologist or engineer. 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. 2.0 PROJECT BACKGROUND Geocon Consultants, Inc., conducted a Phase I ESA for the six parcels located at 615 East Main Street (site) in Stockton, California, in October 2000. The results of the ESA were provided in a report dated December 2000. The ESA discovered a possible UST located at 24 South American Street. A 500-gallon 1.. UST that was suspected to have previously contained waste oil was removed from 24 South American Street on May 4, 2001. In a letter dated June 12, 2001 Mr. Doug Wilson of the San Joaquin County Public Health Services Environmental Health Department (PHS/EHD) stated that the UST removal La investigation was complete and that no further action was required at that time. Condor Earth Technologies, Inc. (Condor) was contracted to perform a Phase I ESA peer review and a limited Phase 11 ESA for the six parcels (Figure 2) in June 2002 by Mr. Charles Holden of Monte Vista Entitlement. The purpose of the proposed scope of services is to assist the client in meeting the ' requirements of the CERCLA innocent landowner defense prior to acquisition of the parcels. During the site reconnaissance of the parcel situated on Stanislaus Street (APN 1.49-200-10), the presence of a possible tank fill point and vent was noted at the southern edge of the property located immediately north of the subject parcel. The site is located in a commercial area in downtown Stockton and is currently La utilized as a parking lot. There are currently no existing structures at the site(Parcel 2, Figure 2). 3.0 SCOPE OF WORK The purpose of the site work is to investigate if the site soil has been impacted as a result of a possible hydrocarbon discharge from a suspected UST located proximal to the northeastern boundary of APN 149-200-10. Two soil borings will be advanced to a depth of 25 feet directly adjacent to the site's ++ northeastern property I ine with APN 149-200-13. The proposed boring locations are shown on.Figure 3. CONDOR LM