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SECTION 5:SITE INVESTIGATION TECHNIQUES <br /> TABLE 5-8 <br /> Petroleum Residual NAPL Saturation Based <br /> on <br /> Soil Type In Sedimentary Environments <br /> 90Type ASMPar" <br /> z. H'-` 0 9- Pb TPH Cm=tmtioa(m&/ks1 <br /> D247 alae ( ) (dim) (�) (�✓cm� <br /> (mm) Gwmllne Heroine p <br /> Di"a Fad Oil <br /> Naphtha JP-4 (-VV <br /> (me/tg) (n-WSAW <br /> Gravel 76.24.75 100 030 0.001 2.00 560 780 1000 1400 <br /> sandy Based on 5A 036 0.005 1.86 1,500 2,100 2,800 3 8W <br /> Gravel %fines <br /> M- 4.75-0.425 1.0 037 0.M 1.83 2.300 3,200 4,400 5,900 <br /> Coarse <br /> sand <br /> Flne 0.425- OS 038 0.009 1.81 2,900 4,000 5,400 7,300 <br /> Sand 0.074 <br /> aw Baud on 0,05 0.41 0.018 1.76 5,600 7,800 10,000 14,000 <br /> Sand 'b fines <br /> sat 0.074- 0.0005 0.48 0.10 I b5 19,000 27,000 36,000 49,000 <br /> 0.005 <br /> CLy -0.005 0.000005 0S6 039 1-56 44,000 61,000 82,000 110,000 <br /> 1. The critical flow rate(q.)used to calculate the above values was i x 10- cm/sec. <br /> This table does not apply in fractured crystalline rock environments <br /> 2. The TPH concentration values were determined by using Equations 5-3 and 5-4. <br /> NAPL characterization requires an approach that is distinctly different from dissolved-phase <br /> characterization because immiscible flow is controlled by parameters not addressed in a <br /> dissolved-phase assessment. These parameters include the fluid properties of the NAPL and the <br /> capillary properties of the porous media. <br /> There are many ways to determine the presence of NAPL. A more detailed discussion of the <br /> following techniques can be found in Cohen(1993)and Pankow(1996). <br /> County of San Diego Department of Environmentd Health Site Assessment/Mitigation Manual(2002) <br /> Page 5.48 1.24.2002 SAM Manual <br />