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5.21 Climate Change
over the 18 years of grading would be approximately 26,500 to 36,500 cubic yards (cy),
depending on the number of days of grading. For a conservative estimate, it is assumed that
grading would be limited by weather and other factors to 200 days per year, and the average
daily grading quantity would be 36,500 cy. Cut and fill would be balanced on the Project site
and no off-site export or import is anticipated. Soil movement within the site would be by
scraper. Equipment used for the average year grading analysis is shown in Table 5.21-3
Further below in Table 5.21-10, all summary of all Project-related GHG emissions are
presented.
TABLE 5.21-3
GRADING, BUILDING, PAVING, AND ARCHITECTURAL COATING EQUIPMENT FOR
AVERAGE YEAR EMISSIONS ESTIMATES
Equipment Type Number of Equipment
Grading
Scrapers 10
Dozers 7
Compactors 2
Water trucks 2
Graders 1
Building
Cranes 4
Forklifts 12
Tractor/Loader/Backhoes 12
Welders 4
Generator Sets 4
Paving
Paving Machine 1
Roller 3
Architectural Coating
Compressors 4
For the purposes of the GHG modeling assumptions, the Project construction is assumed to
begin in 2016, with buildout complete in 2035, although the actual start of construction and
buildout are likely to occur later than 2016 and 2035, respectively. The 2035 buildout date
is consistent with the Project traffic impact analysis (see Section 5.10, Traffic, Access, and
Circulation) and also with the CalEEMod model, which does not include on-road emissions
factors beyond 2035. This is a conservative approach; if the actual start of construction
occurs later than 2016 and buildout occurs later than 2035, both the construction equipment
fleet and on-road vehicles are assumed to be “cleaner” than would be the case if construction
starts in 2016 and buildout occurs in 2035, as described CARB’s 2016 Mobile Source
Strategy. This is so because such later model vehicles will be subject to more stringent
emission controls and fuel standards and thus generate less unit emissions with each future
R:\Projects\PAS\CEN\000306\Draft EIR\5.21 ClimateChange-051117.docx 5.21-51 Centennial Project
Draft EIR

