SU0012793 - Laserfiche WebLink

Home Browse Search

The following mitigation measures will mitigate these impacts to below a level of significance. Mitigation Measures (Impact G.1): (a) Water the working face, excavation area, storage pile, unpaved roads, and all unvegetated soil areas frequently, adding a dust palliative(a non-toxic chemical suppressant, such as magnesium chloride (MgCl2) that attracts water molecules from the air), thereby keeping the surface wet for a longer period. Regarding the watering of the working face, a balance must be made between dust control and the generation of additional leachate. The landfill operator shall monitor dust levels and levels of leachate generated to determine when and where water should be applied. (b) The project sponsor shall seek to minimize the extent of areas exposed to wind erosion. Exposed surfaces, including stockpiles and other bulk materials with the potential to emit dust shall be stabilized with the application of water, chemicals, covered, or vegetated to the extent possible in accordance with the SJVUAPCD's Regulation 8030. On windy days, when dust plumes are present, active faces shall be watered down. (c) Plan and phase construction and closure operations such that they do not take place simultaneously on dry windy days. Schedule dusty activities on separate days. (d) Design the site ftllingplan to facilitate screening of the active face from prevailing winds, whenever possible, to minimize the amount of wind blown dust releasedPram the f working face. I (e) Haul trucks carrying airborne material shall be covered during transport and sprayed with water prior to dumping if it is shown that this would reduce dust emissions during off-loading activities within the landfill. a (f) The landfill operator shall restrict truck and equipment travel over loose, uncompacted unpaved surfaces. (g) Vehicle speeds on the project site shall be limited to 15 MPH. The main access road would be paved and maintained sufficiently to effectively y eliminate entrainment of visible dust emissions from vehicle travel in accordance with SJVUAPCD Rule 8040(control of fine particulate matter(PM10)from landfill disposal sites and Rule 8060(control of fine particulate matter(PM10)from paved and unpaved roads). Facts in Support of the Finding: The potential for generation of fugitive dust is discussed in Section IILG of the EIR. The measures above are designed to mitigate impacts of fugitive dust. 38 U.