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2-9 Forward Composting Facility SWT Engineering Report of Composting Site Information - January 2022 the landfill entrance road; south of the South Fork. There are no turning lanes for traffic on Austin Road or stacking lanes within the site. However, the ent rance scale is set back from Austin Road approximately 275 feet, allowing for adequate queuing of incoming traffic. Unauthorized access to the RRF/Compost Facility is restricted by perimeter f encing and lockable gates in accordance with 14 CCR, Section 178 67(a)(5). Signs prohibiting unauthorized access have been posted on the fence along the levee adjacent to the South Fork and along Austin Road at approximately 300 -foot intervals. The locations of the access roads and perimeter fencing are shown in Figur es 2 and 6. All truck traffic backs up to either the tipping area or green waste/wood pile (depending on the load) and drives out after dumping. The traffic flow into and out of the RRF /Compost Facility for both incoming wastes and outgoing wastes , finished compost product, and recyclable materials is shown in Figure 5. 2.1.9 Development Stages A processing area at the Compost Facility is utilized to manage compostable materials being delivered to the site. Developing the Compost Facility in this manner allowed Forward to initially construct and operate the facility with a low throughput. This development plan has also allowed Forward to increase or decrease material/waste inflow , as necessary, to meet the demands of the Compost Facility users and the market conditions for finished compost products. 2.1.10 Amendments and Additives Amendments and/or additives are not currently used in the compost process at this time. LEA approval will be requested before the compost facility will us e any amendments and/or additives. 2.1.11 Physical Site Conditions Report The physical conditions at the site are described in detail in the following section: (1) The Forward site is located near the geographic center of the Great Valley geomorphic province in northern San Joaquin Valley. Original ground surface elevations at the site range from approximately 35 to 45 National Geodetic Vertical Datum (NGVD), sloping generally to the west. The Great Valley is an asymmetrical structural trough filled with a thick sequence of flat -lying marine and continental sediments. The surface soils are mainly composed of two soil types typical of Victor Formation sediments. The two soils, as mapped by the Soil Conservation Service, are known as Clear Lake clay (CL) an d Jacktone clay (ST). These soils are similar in composition; they were formed from alluvium. The permeability of both these soils are low, the available water -holding capacity is moderate, the shrink -swell potential is high, and the water erosion potent ials are low. The general water bearing characteristics of the surface soils, separated into clay, silt, and sand components are presented in Table 1. Typical uses of these soil types include irrigated cropland, orchards, vineyards, and sometimes irrigat ed pasture and urban development. (2) The Forward site is located in the San Joaquin hydrologic basin. Based on groundwater elevation contours published by the San Joaquin County Flood Contro l and Water Conservation District, the regional groundwater in t he vicinity of the site is now typically 10 to 25 feet below mean sea level (bmsl) and flows to the north-