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GENERAL WORKPLAN SUBSURFACE SOIL SAMPLING—ORCHARD AREA 4204 NORTH SUTTER STREET JT5L avi,Vtt"\^ In accordance with your request, we have prepared this workplan for the collection of soil samples from the subject site for laboratory analysis. This letter includes a description of our proposed work elements. The subject property is located within an established residential area of Stockton, San Joaquin County, California. The approximate 12.81-acre subject property is accessed by a private road that fronts on North Sutter Street, approximately 450 feet to the west. The subject property is bounded by the Calaveras River corridor to the north, by vacant land and an abandoned cherry orchard to the east, and by a former railroad easement and residential property to the south. The Siena Christian Elementary School,the easterly terminus of Fargo Street, and residential property are situated adjacent to and easterly of the subject property. The San Joaquin County Assessor's parcel number(APNs) for the property is 115-230-06. We will direct the advancement of five soil borings (Geoprobe borings)within the orchard area of the subject property (see attached Plot Plan) and collect up to five soil samples for laboratory analysis. Prior to the described Geoprobe sampling activities, we would contact Underground Service Alert to clear the boring locations of underground utilities. All drilling and sampling activities would be overseen by a Professional Geologist from our office. Continuous soil sampling would be performed in each of the five borings within the orchard area. Following the sampling activities the borings would be backfilled with neat- cement grout and surfaces would be patched accordingly. Selected soil would be submitted to a State-certified analytical laboratory for chemical testing. Analyses for organochlorinated pesticides and DBCPs would be performed by a State Certified analytical labors ory.