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N �6R0 FUGRO WEST, INC. n J DL c� a� C,; 5� 1000 Broadway,Suite 200 U 7 Oakland,California 94607 Tel:(510)268-0461 Fax:(510)268-0137 December 18, 2003 del (slo) 24Z` qqt1 Project No. 03.537 San Joaquin County Environmental Health Department 304 E. Weber Avenue, 3rd Floor 'z Stockton, California 95202-2708 I Subject: Request for Drilling Permit C� I 14 Acre Parcel Harlan and D'Arcy Parkway Lathrop, California Dear Ms. Lagorio: This letter requests a drilling permit to drill and sample at 15 boring locations on one site that covers three parcels, APN 198-19-28, '198-19-11, and 198-19-29. We present herein a work plan for the drilling, sampling and testing operations. The boring locations are shown on the attached site plan. Fugro West Inc. will perform a geotechnical investigation to provide foundation recommendations for three proposed structures that include an In-N-Out Burger Restaurant, a warehouse, and a maintenance facility. We have attached a site plan with the approximate locations of the borings. The site consists of 14 acres and is located near the intersection of Harlan Road and D'Arcy Parkway. In conducting this investigation, Fugro will also prepare a Phase I Environmental Site Assessment. At this time, Fugro understands that the site is vacant and believes that it has only served agricultural purposes or remained vacant. This work plan describes the scope of the planned investigation, the procedures for borehole sealing and disposal of soil and groundwater, and the scope of laboratory testing, and presents a site plan with the boring locations and a safety plan. Scope of Investigation A field exploratory program will be conducted under the direction of our geotechnical engineer who will supervise the drilling and logging of fifteen (15) exploratory borings. The borings will be conducted using a conventional light truck mounted drill rig. The drill rig will turn hollow or solid augurs and collect soil samples with a 2.5 inch California Modified sampler or the 11/4 inch split spoon sampler. We anticipate that 10 of the borings will be conducted in building footprint areas (see the Site Plan Borings B-1 through B-10), and will extend to depths of 15 to 20 feet. Because we may encounter cemented deposits, our drilling rig may not be able to complete the borings to the maximum depth of 20 feet. Five of the borings will be conducted in pavement areas and will extend to depths of about 5 feet. Samples will be collected from the borings at approximately 5- foot intervals, or less. Bulk samples of the near surface soils will also be collected. The samples will be returned to our laboratory for further examination and testing. During the field operations, our field engineer will log the soils and obtain samples for visual examination and geotechnical tests. We will also screen soil samples in the field using an organic vapor meter(OVM), a device that G:\PROPOSED WORK\2003\03.537MORK_PLAN.DOC A member of the Fugro group of companies with offices throughout the world.