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the demands of the Compost Facility users and the market conditions for finished compost <br /> products. <br /> 2.1.11 Engineering Report <br /> Provide an engineering report describing the processes to be used, including pollution <br /> control devices and estimated quantities of feedstock, additives, and amendments [14 <br /> CCR 18220(b)]. <br /> Since it appears that an engineering report is not required in the new regulations, an <br /> engineering report has not been provided. One will be prepared, if required. <br /> 2.1.12 Amendments and Additives <br /> Indicate the amount of amendments or additives by volume. <br /> Amendments or additives will not be used in the compost process at this facility. <br /> 2.1.13 Physical Site Conditions Report <br /> Provide a report that describes the following. (1) the classification of natural soils,(2) depth <br /> to groundwater, (3) estimated maximum expected precipitation from storm conditions of a <br /> 25 year, 24-hour rainstorm event, and (4) the projected volume and matter of runoff <br /> associated with a 25 year, 24-hour rainstorm event[14 CCR 18220 (m)]. <br /> The physical conditions at the Compost Facility site are described in detail in the <br /> following section: <br /> (1)The Forward site is located near the geographic center of the Great Valley of <br /> California. Original ground surface elevations at the site range from approximately <br /> 35 to 45 NGVD, sloping generally to the west. The Great Valley is an asymmetrical <br /> structural trough filled with a thick sequence of flat-lying marine and <br /> continental sediments. The surface soils are mainly composed of two soil types <br /> typical of Victor Formation sediments. The two soils, as mapped by the Soil <br /> Conservation Service, are known as Clear Lake clay (CL) and Jacktone clay (ST). <br /> These soils are similar in composition; they were formed from alluvium. The <br /> permeability of both these soils are low, the available water-holding capacity is <br /> moderate, the shrink-swell potential is high, and the water erosion potentials are <br /> low. The general water bearing characteristics of the surface soils, separated into <br /> clay, silt, and sand components are presented in Table 2.1. Typical uses of these <br /> soil types include irrigated cropland, orchards, vineyards, and sometimes <br /> irrigated pasture and urban development. <br /> Forward Composting Facility <br /> Z:\PROJECTS\Allied Waste\Forward\Resource Recovery Facility\Permitting Services\2009 RCSI\RCSI Final 031609.doc; <br /> Page 25 <br />