Table 1. PM monitors considered for background concentrations. Bold values indicate monitor selected as most representative of the project area. Distance Upwind Height Density/ Mix of Latest 3 Years from from Geographic Sources Similar AQS ID Location Purpose Land Use w/ Complete Project Area Project Scale Ground to Project Data Available Area?1 Level (feet) Area? Similar, but Greenwood, Single-family Population project area is 1128 N. 27th 2.5 No Middle scale residential. 275 10* 2010-2012 exposure closer to Ave feet S of I-10 downtown core Single-family and Similar, but Central Phoenix, Population multi-family project area is 1645 E 1.6 Yes Neighborhood 10* 2010-2012 exposure residential. 0.3 closer to Roosevelt St. miles S of I-10 downtown core Durango Similar, but Warehouses and Complex, 2702 Highest project area is 3.5 No Middle scale office, 0.7 miles 10* 2010-2012 AC Ester Brook concentration closer to SW of I-17 Blvd. downtown core Similar, but JLG Supersite, Single and Population project area is 4530 N 17th 3.2 No Neighborhood residential, 10* 2010-2012 exposure closer to Ave. one mile E of I-17 downtown core 1 Note source of met data *Monitor height is dummy value; actual value would need to be obtained from state air agency or AQS as it is not part of EPA’s publicly available KML files.
Table 1. PM monitors considered for background concentrations. Bold values indicate monitor selected as most representative of the project area. AQS ID Location Distance from Project Area Upwind from Project Area?1 Purpose Geographic Scale Land Use Height Ground Level (feet) Density/ Mix of Sources Similar to Project Area? Latest 3 Years w/ Complete Data Available Greenwood, 1128 N. 27th Ave 2.5 No Population exposure Middle scale Single-family residential. 275 feet S of I-10 10* Similar, but project area is closer to downtown core 2010-2012 Central Phoenix, 1645 E Roosevelt St. 1.6 Yes Population exposure Neighborhood Single-family and multi-family residential. 0.3 miles S of I-10 10* Similar, but project area is closer to downtown core 2010-2012 Durango Complex, 2702 AC Ester Brook Blvd. 3.5 No Highest concentration Middle scale Warehouses and office, 0.7 miles SW of I-17 10* Similar, but project area is closer to downtown core 2010-2012 JLG Supersite, 4530 N 17th Ave. 3.2 No Population exposure Neighborhood Single and residential, one mile E of I-17 10* Similar, but project area is closer to downtown core 2010-2012 1 Note source of met data *Monitor height is dummy value; actual value would need to be obtained from state air agency or AQS as it is not part of EPA’s publicly available KML files.
NCHRP25-25(89)_Documentation_Templates.docx