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0 6.8.2 Leachate Control Generation of leachate is limited by controlling the intrusion of water into refuse. The County uses daily cover, constructs the landfill surfaces with slope to drain, and places berms in the active area to divert storm water away from the active area so that it does not come into contact with the waste. Leachate is returned to the landfill over Subtitle D -lined areas in accordance with the current Waste Discharge Requirements. 6.8.3 Dust Control Dust is controlled at the landfill by daily watering of haul roads and tipping areas. In addition, paved roads are washed with a water truck weekly or as needed. Haul roads and the fill area are watered if there is visible dust. Water is applied by water trucks with sprinklers on the front and back. Frequency of water application is dependent upon the season and site conditions. The most frequent application will occur during the summer in windy conditions. The performance standard of "controlling visible dust" dictates the frequency of water application. A log is kept with time and location of watering at the landfill. Dust within the Recycling Center is controlled by the use of an overhead mist system. 6.8.4 Vector and Bird Control Waste is properly covered daily with either soil or a geosynthetic tarp to control vectors. In addition, site personnel inspect the site for signs of vector activity. If such activity is observed, a vector eradication program is implemented using a professional pest controller, if necessary. Propane -fueled noise cannons are used to disperse birds away from the active face. If needed, bait for rats or squirrels, may be placed. California Pest Control is called for pest control for rodents in the buildings approximately once per month. North County RC&SL Page 46 of 69 Public Works/Solid Waste Joint Technical Document County of San Joaquin — February 10, 2010