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Table 2.2 <br /> Summary of Subsurface Soil Properties and Unit Weights <br /> Friction Unit <br /> Material Angle CohesionWeight <br /> (deg) (Psf) (pcf) <br /> Foundation Materials(simplified profile) <br /> " Elevation 10 to 39 feet,dense silty sand and very stiff lean clay 33 0 120 <br /> " Elevation zero to 10 feet,very stiff lean clay 0 2,300 120 <br /> " Elevation zero to-30 feet,dense silty/clayey sand 36 0 120 <br /> " Elevation-30 feet to-60 feet,very stiff lean clay 0 3,300 125 <br /> " Elevation-60 to-150 feet,very dense silty/clayey sand 36 0 125 <br /> " Elevation-150 feet to-200 feet,very dense poorly graded sand 40 0 125 <br /> 2.2 Monitoring <br /> Describe plans for leachate monitoring. At least one sample of leachate from each of the <br /> first five composting batches of feedstock generating leachate must be collected and <br /> analyzed for organic phosphates, using EPA method 8140, and nitrates. <br /> [Note: Regulations do not appear to require leachate monitoring.] <br /> Describe plans for ensuring that all end-products, excluding noncompostable waste, have <br /> met the following environmental health standards for: (1) Maximum acceptable metal <br /> concentration, and (2) Pathogen reduction. <br /> Sampling. Forward will analyze at least one composite sample for every 5,000 cubic <br /> yards of compost. Compost product, which exceeds the maximum metal <br /> concentrations or maximum acceptable pathogen concentrations, shall be designated by <br /> the appropriate State or Federal jurisdiction for another use, including disposal, additional <br /> processing, ADCs or other uses. <br /> A composite sample will consist of 12 mixed samples. The 12 samples will be of equal <br /> volume. Four samples will be extracted from within the compost pile at different cross- <br /> sections as follows: <br /> • One-half the horizontal width of the pile <br /> • One-fourth the horizontal width of the pile <br /> • One-eighth the horizontal width of the pile <br /> Results from sampling of the finished product should be sent directly to the LEA from the <br /> certified laboratory. <br /> Metal Concentrations. The maximum acceptable metal concentrations are presented <br /> in Table 2.3. Tests for metal concentration will be conducted at a certified lab: <br /> Forward Composting Facility RCSI <br /> 7/20/09;Page 23 SWT Engineering <br />