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Pape Properties, Inc. January 11, 2015 <br /> Limited Phase II ESA 10842 S Harlan Rd, French Camp, CA <br /> 1.5 Findings <br /> Low concentrations of diesel were reported in samples from varying depths in all of the soil borings <br /> except soil boring S13-2,which was located between the PacLease building and the UST(Figure 2). <br /> Loose, unconsolidated material ("flowing sand") hampered sample recovery in SB-2, even with multiple <br /> attempts at sample recovery. The highest concentration of diesel was reported in S13-3, located south of <br /> the UST, at a concentration of 50 mg/Kg and a depth of 15.0 to 15.5 feet bgs. The laboratory results for <br /> soil testing are presented in the following table. <br /> Diesel Range Organics(DRO) in Soil <br /> (C10 to C28,with Silica Gel Cleanup) <br /> October 9,2014 <br /> Analytical Method: EPA 80158 <br /> Reporting Limit(RL): 1.2-3.7 <br /> Units: mg/Kg <br /> Sample Depth,ft bgs: 5.0-5.5 10.0- 10.5 15.0- 15.5 20.0-20.5 25.0-2S.5 <br /> S13-1 <1.3 <1.3 <1.2 <1.2 2.5 <br /> S13-2 <1.3 <1.2 <1.3 NR NR <br /> SB-3 <1.5 <1.3 50 <1.2 12 <br /> S13-4 16 <1.1 <1.1 0.99 (J) 9.7 <br /> Environmental <br /> Screening Level 110 mg/Kg <br /> (ESL) <br /> Notes: NR=no sample recovery; "J"=approximate value,with the reported value less than the reporting level but <br /> greater than the method detection limit;the ESL is from Tables A-2 and C-2, Environmental Screening Levels, <br /> Interim Final, December 2013,San Francisco Bay Regional Water Quality Control Board. <br /> On October 10, 2014, depth to groundwater ranged from 20.15 to 23.25 feet,with a northerly gradient <br /> of 0.002 feet per foot (ft/ft). Sample locations and groundwater data are shown in the following tables. <br /> Groundwater contours are shown on Figure 3. <br /> PA004.02 P H I I(14) <br /> 3 1:\Pape\004 Kenworth\02.French Camp\2014\Phase II ESA.docx <br /> CALEDONIA <br />