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North County RC&SL Page 40 of 67 Public Works/Solid Waste Joint Technical Document County of San Joaquin – Revised February 11, 2026 Shredded Tires: Shredded tires used as ADC shall be preprocessed off site in order that f 50 percent by volume is smaller than 6 inches in length and no individual pieces are greater than 12 inches in length. Shredded tire ADC may be placed alone or mixed with soil. Shredded tires used as ADC, without mixing with soil, will not be applied when there is precipitation or when there is a local forecast of greater than 40 percent chance of precipitation in the vicinity of the landfill, within 8 hours of application time. The on-site storage of shredded tires will comply with the requirements set forth by CCR Title 14, Division 7, Chapter 3, Article 5.5. All shredded tires used as ADC shall be placed within 56 hours of receipt on site. 6.4.4 Intermediate Cover Intermediate cover consists of a minimum 18” of soil cover over refuse where no additional refuse will be placed within 180 days. 6.4.5 Final Cover A final cover project covering a part of the landfill, is contemplated in the next five years. This project will place final cover on the western portion of Areas 1 through 4, including the portions of the top deck of those Areas that have reached final elevation. The soil balance calculations for this site assume that such partial final cover projects will be executed before Area 7 is fully excavated, thereby minimizing the quantity of soil that must be stockpiled. It is further contemplated that the County will seek to use an evapotranspiration (ET) cover for final closure based on the success of the ET cover project at the Foothill Sanitary Landfill, which demonstrated that the ET cover was twice as effective as an intact prescriptive cover, and on the quality of the Soil at the North County Landfill which is conducive to vegetative growth with minimal amendments. 6.5 WASTE HANDLING 6.5.1 Public Health Operating Considerations The NCRC&SL is designed and operated to mitigate flies, rodents, and other vectors, and the creation of nuisances. This is achieved through air and water quality control, noise control, odor control, and sanitary landfill operating practices (see Section 6.8).