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r <br /> t Page 23 <br /> F.' ENVIRONMENTAL IMPACT MITIGATION MEASURE LEVEL OF <br /> SIGNIFICANCE <br /> AFTER <br /> r f MITIGATION <br /> the SJMSCP. These methods include <br /> _ installation of one-way doors in occupied <br /> # , burrows,maintaining vegetation cover that <br /> discourages burrowing ground squirrels, <br /> disking to destroy burrows,or control of <br /> ground squirrel populations. <br /> G. AIR QUALITY <br /> G.1 Landfill equipment and earth moving (a)Water the working face,excavation LS <br /> activities on-site would generate fugitive area,storage pile,unpaved roads,and all <br /> dust_ (SIGNIFICANT) unvegetated soil areas frequently,adding a <br /> Fdust palliative(a non-toxic chemical <br /> suppressant,such as magnesium chloride <br /> (MgC12)that attracts water molecules from <br /> the air),thereby keeping the surface wet <br /> for a longer period. Regarding the <br /> watering of the working face,a balance <br /> must be made between dust control and the <br /> generation of additional leachate. The <br /> landfill operator shall monitor dust levels <br /> and levels of leachate'generated to <br /> determine when and where water should <br /> _ be applied. <br /> (b) The project sponsor shall seek to <br /> minimize the extentf <br /> o areas exposed to <br /> wind erosion. Exposed surfaces, including. <br /> stockpiles and other bulk materials with <br /> the potential to emit dust shall be <br /> stabilized with the application of water, <br /> chemicals,covered,or vegetated to the <br /> extent possible in accordance with the <br /> SJVUAPCD's Regulation 8030. On windy <br /> days,when dust plumes are present,active <br /> faces shall be watered down. <br /> (c)Plan and phase construction and <br /> closure operations such that they do not <br /> take place simultaneously on dry windy <br /> days. Schedule dusty,activities on separate <br /> days - <br /> (d)Design the site filling plan to facilitate <br /> screening of the active face from ; <br /> GRASS <br /> E7Tl ENilIRONMENTAL CONSULTING <br />