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City of Santa Ana -Park View at Town and Country Manor <br />Draft EIR <br />The mobile emissions were generated by the URBEMIS2007 model using trip generation rates from <br />the Traffic Impact Analysis. The trip generation rates were developed by averaging the trips for <br />Senior Adult Housing - Attached and Apartment land uses. The averaged trips reflect the trip <br />reduction likely to occur due to the age of the tenants and the project's onsite amenities and care <br />facilities, while also reflecting an active senior adult population that may continue to work. A trip <br />generation rate of 5.1 trips per unit was used. The URBEMIS default vehicle mix values were used in <br />this assessment. <br />Area source emissions were also generated using URBEMIS2007. Compliance with SCAQMD Rule <br />445 was assumed, which prohibits wood burning fireplaces and stoves in new residential units. It was <br />assumed that all units having a fireplace would have a natural gas fireplace. <br />Operational emissions from emission sources generated both onsite and offsite as derived from the <br />URBEMIS2007 model are shown in Table 4.2 -5 for the summer season and Table 4.2 -6 for the <br />winter season. As shown in the tables, the project's emissions do not exceed the SCAQMD's <br />regional thresholds and are considered less than significant. <br />Table 4.2.5: Operational Air Pollutant Emissions (Summer) <br />Emissions (pounds per day) <br />01201 CO s0, PM10 PM2s <br />Mobile <br />6.11 <br />6.85 <br />70.32 <br />0.09 <br />15.46 <br />2.99 <br />Natural Gas <br />0.22 <br />2.83 <br />1.21 <br />0.00 <br />0.01 <br />0.01 <br />Landscape <br />1.53 <br />0.11 <br />9.31 <br />0.00 <br />0.03 <br />0.03 <br />Consumer Products <br />8.93 <br />- <br />- <br />- <br />- <br />- <br />Architectural Coatings <br />0.63 <br />- <br />- <br />- <br />- <br />- <br />Total <br />17.42 <br />9.79 <br />80.84 <br />0.09 <br />15.50 <br />3.03 <br />Significance Threshold <br />55 <br />55 <br />550 <br />150 <br />150 <br />55 <br />Significant Impact? <br />No <br />No <br />No <br />No <br />No <br />No <br />VOC = volatile organic compounds NOx = nitrogen oxides CO = carbon monoxide <br />SOx = sulfur oxides PM, and PM,., = particulate matter <br />Source: Michael Bmndman Associates, Air Quality Impact Analysis Report, 2009. <br />Table 4.2 -6: Operational Air Pollutant Emissions (Winter) <br />Michael Brandman Associates 4.2 -15 <br />H\Cl t(PN- Rnb327b327003(MMVB270030 Se 4GAvQ hty.DOc <br />