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<br /> <br />Foothill Sanitary Landfill Page 34 of 52 San Joaquin County DPW - Solid Waste <br />Joint Technical Document Revised 01/05/2026 <br /> <br />(Monday through Friday, 8:00 AM to 5:00 PM) <br />x Other urgent needs after normal working hours: (209) 468-3074 ext. 3 <br />This number will reach 24-hour security personnel at the Public Works Department. <br />Explain the situation, and this person will contact the appropriate responsible party. <br />x Linden Peters Fire Department (209) 887-3710 <br /> <br />6.2. Spreading and Compacting Refuse <br />The site is divided into modules to facilitate efficient excavation, access, and drainage. <br />Excavation precedes one module ahead of refuse fill. The number and size of the modules may <br />change depending on the amount of incoming waste and construction sequencing by the <br />County. <br /> <br />The modules are being constructed by the ramp-area method. Waste is placed on a <br />sloped surface in compacted lifts. Refuse is placed in lifts of 6 to 10 feet thick, with perimeter <br />slopes horizontal to vertical ratio of 3:1 or less. Refuse is spread and compacted in layers of <br />approximately two feet thick on a sloped working face approximately 100 feet x 100 feet in size. <br />Large and bulky wastes are separated to prevent bridging of the surrounding refuse, placed in <br />the lower portion of the advancing lift, and crushed by compacting equipment. Temporary <br />berms are constructed where needed to intercept and divert surface runoff water away from the <br />working face. <br /> <br />The operator uses the flat-area (pancake) method for filling future modules. This method <br />consists of spreading the refuse by a bulldozer into a level layer of approximately 24” deep <br />across a designated area of the Module. The advantage of this procedure is that compaction is <br />maximized on a level surface, as opposed to traditional ramp-area compaction. Once spread, <br />the refuse is compacted and the next layer spread. This process is repeated until a 10-feet lift <br />has been created, and then the process is restarted at the next designated area. <br /> <br />After waste is deposited at the active face, it is moved by dozers and bladed compactors <br />to its final resting spot. The compactors spread and compact the wastes by making repeated <br />passes over an area. As the process is repeated, each lift of waste receives a number of <br />passes of the compactor which increases the density of the waste. The dozers are used to