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2-10 <br />Forward Composting Facility SWT Engineering <br /> Report of Composting Site Information - August 2019January 2022 <br />z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2019-2020\rcsi 2019\text\sec 2.doc <br />the landfill entrance road; south of the South Fork. There are no turning lanes for traffic on <br />Austin Road or stacking lanes within the site. However, the ent rance scale is set back from <br />Austin Road approximately 275 feet, allowing for adequate queuing of incoming traffic. <br />Unauthorized access to the RRF/Compost Facility is restricted by perimeter fencing and <br />lockable gates in accordance with 14 CCR, Section 178 67(a)(5). Signs prohibiting <br />unauthorized access have been posted on the fence along the levee adjacent to the South <br />Fork and along Austin Road at approximately 300 -foot intervals. The locations of the access <br />roads and perimeter fencing are shown in Figur es 2 and 6. <br />All truck traffic backs up to either the tipping area or green waste/wood pile (depending on <br />the load) and drives out after dumping. The traffic flow into and out of the RRF /Compost <br />Facility for both incoming wastes and outgoing wastes , finished compost product, and <br />recyclable materials is shown in Figure 5. <br />2.1.9 Development Stages <br />A processing area at the Compost Facility is utilized to manage compostable materials being <br />delivered to the site. Developing the Compost Facility in this manner allowed Forward <br />initially to initially construct and operate the facility with a low throughput. This development <br />plan has also allowed Forward to increase or decrease material/waste inflow , as necessary, <br />to meet the demands of the Compost Facility users and the market conditions for finished <br />compost products. <br />2.1.10 Amendments and Additives <br />Amendments and/or additives are not currently used in the compost process at this time. <br />Prior LEA approval will be requiredested before the compost facility will us e any <br />amendments and/or additives. <br />2.1.11 Physical Site Conditions Report <br />The physical conditions at the site are described in detail in the following section: <br />(1) The Forward site is located near the geographic center of the Great Valley <br />geomorphic province in northern San Joaquin Valley. Original ground surface <br />elevations at the site range from approximately 35 to 45 National Geodetic Vertical <br />Datum (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 continental <br />sediments. The surface soils are mainly composed of two soil types typical of Victor <br />Formation sediments. The two soils, as mapped by the Soil Conservation Service, are <br />known as Clear Lake clay (CL) an d Jacktone clay (ST). These soils are similar in <br />composition; they were formed from alluvium. The permeability of both these soils <br />are low, the available water -holding capacity is moderate, the shrink -swell potential is <br />high, and the water erosion potent ials are low. The general water bearing <br />characteristics of the surface soils, separated into clay, silt, and sand components <br />are presented in Table 1. Typical uses of these soil types include irrigated cropland, <br />orchards, vineyards, and sometimes irrigat ed pasture and urban development. <br />(2) The Forward site is located in the San Joaquin hydrologic basin. Based on <br />groundwater elevation contours published by the San Joaquin County Flood Control <br />and Water Conservation District, the regional groundwater in t he vicinity of the site is <br />now typically 10 to 25 feet below mean sea level (bmsl) and flows to the north-