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0 <br />7.7.3. Dust Control <br />Dust from site operations is controlled by watering haul roads; applying a fine spray on soil <br />cover work areas when conditions might create excessive dust and planting vegetation on <br />intermediate soil cover, and planting and maintaining vegetation on complete fill areas. <br />Watering is accomplished with the use of water trucks with sprinklers on the front and back. <br />Frequency of water application is dependent upon the season and site conditions. The most <br />frequent application will occur during the summer in windy conditions. The performance <br />standard of "controlling visible dust" dictates the frequency of water application. <br />On-site water trucks are used for dust control. The trucks are filled using an overhead fill at the <br />site's water well or from the water pond landfill property. <br />7.7.4. Vector Control <br />Waste is properly covered daily with soil to control vectors. In addition, site personnel inspect <br />is the site for any signs of vector activity. If such activity is observed, a vector eradication program <br />will be implemented using a professional pest controller, if necessary. Currently, landfill <br />employees use "bird bombs" to scare birds away from the active working face. In addition, if <br />there are offensive odors from a load of waste, it is covered immediately with soil to avoid <br />attracting flies. Incoming loads are required to be tarped; thereby reducing potential for litter on <br />roads leading to the site. <br />7.7.5. Drainage and Erosion Control <br />Best management practices are implemented at the landfill. Foothill utilizes several controls to <br />manage run-on and run-off. A perimeter berm around the waste management unit prevents run- <br />on to the unit. This perimeter berm, along with a series of ditches, also controls all surface run- <br />off during storm events, and directs surface run-off from the landfill to a retention basin on the <br />east side of the site. Surface water drainage is shown on Plate 2.2. <br />During the year, the County repairs and regrades (if needed) the storm water conveyance <br />structures. The County will minimize contact between flowing storm water and the MSW so <br />Foothill Sanitary Landfill Page 55 of 62 Public Works/Solid Waste <br />JTD County of San Joaquin — Revised 11/14/05 <br />