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III. Environmental Setting, Impacts,and Mitigations <br /> G. Air Quality <br /> TABLE III.G.2: PROJECT-GENERATED CRITERIA AIR POLLUTANT EMISSIONS <br /> Obs/day) <br /> Project <br /> Emissions as <br /> Pollutant Emissions a%of <br /> Emissions On-SiOff-Site/b/ Total Counter County-wide <br /> CO 116 32 148 520,780 0.03 <br /> HC 18 10 28 155,740 0.02 <br /> NOx 234 61 295 143,760 0.21 <br /> Sox 30 11 41 23,280 0.18 <br /> PM10 270 12 282 212,000 0.13 <br /> /a/ On-site emissions were calculated for existing conditions on the basis of types of <br /> equipment,hours of operation and volume of waste material handled. For a worst-case <br /> analysis,landfill operation, subsequent cell construction, and previous cell closure were <br /> assumed to take place simultaneously. Exhaust emissions from landfill equipment were <br /> included in the calculations. Emission factors used are from US EPA AP-42, 1987. <br /> /b/ Off-site emissions were calculated on the basis of the project generating 220 vehicle trip <br /> ends per day, and an average trip length of eight miles. EMFAC7EP emission factors were <br /> used for employee trips,while emissions factors for diesel trucks were obtained from the <br /> CEQA Air Quality Handbook,South Coast Air Quality Management District, 1992. <br /> /c/ Based on year 2005 total projected annual emissions for San Joaquin County,Emission <br /> Trends for the San Joaquin Valley Air Basin,California Air Resources Board, 1989. <br /> SOURCE: Environmental Science Associates,Inc. <br /> Mitigation Measure G.I. <br /> Identified by this EIR - <br /> The following mitigation measures are recommended to mitigate the significant PMIO project <br /> impacts. <br /> (a) Water the working face,excavation area,and storage piles frequently,adding a dust <br /> palliative(a non-toxic chemical suppressant, such as magnesium chloride(MgC12)that <br /> attracts water molecules from the air),thereby keeping the surface wet for a longer period. <br /> III.G.11 <br />