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GROUND ZERO ANALYSIS,INC. 1714 Main Street Escalon,California 95320-1927 Telephone:(209)838-9888 Facsimile:(209)838-9883 KLE CE�14 E 0 November 4,2009 V 0 5 2009 ENVIRONMENT PERMITISERVICES Ms. Kasey Foley San Joaquin County Environmental Health Department 600 East Main Street Stockton, CA 95202 Subject: Soil Boring Permit Application Lionudakis Firewood, Inc., 20451 McHenry Avenue, Escalon, California Dear Ms. Foley: Enclosed herewith is a completed drilling permit application and associated fee for the advancement of ten (10) soil borings at the subject site(Figure 1). A site plan has been provided as Figure 2. The proposed soil borings will be advanced to approximately 20 feet below grade in order to define the lateral extent of soil contamination. The soil borings will be advanced in accordance with the October 19, 2009 Workplan for Subsurface Investigation and Soil Excavation, which was approved by the San Joaquin County Environmental Health Department (EHD) in correspondence dated November 2, 2009. The 10 proposed soil borings (SB 1 through SB 10) will be advanced in a step out pattern from the location of B3, which is shown on Figure 3. The first four soil borings (SBI-SB4) will be advanced approximately 10 feet north, south, east, and west of boring B3 to a depth of 20 feet bgs or until the vertical extent of contamination is defined. Based on field observations and subjective analysis with a photoionization detector(PID) additional borings will be advanced along contaminated axes further away from boring B3 until the approximate extent of the contamination is defined. Drilling will be conducted by an experienced Ground Zero geologist under supervision of a professional geologist. The geologist will supervise a C57 licensed well driller during the advancement of the soil borings using direct push technology. After soil samples have been collected the borings will be grouted to surface with neat cement grout.