Page 314 - tesoro_sdeir0218

Tesoro del Valle (Phases A, B, C)
Draft Supplemental EIR

TABLE 5.3-9
CALEEMOD MODEL LAND USE PARAMETERS

Land Use Subtype in Land Use Lot Building/Paving
Proposed Land Use CalEEMod Size Acreage (square feet) a
Single-Family Residential Single Family Housing 455 DU 147.73 819,000
Age-Qualified Residential Retirement Community 365 DU 73.00 730,000
Parks/Playgrounds/Clubhouses/Pools City Park 17.5 AC 17.5 10,000 b
/Tennis Courts/Volleyball Courts
Streets/Parking Lots Other Asphalt Surfaces 77.8 77.8 3,388,968
Manufactured Slopes/Debris Basins/ User Defined Recreational 52.8 AC 52.8 c 0
Water Tanks/LACFD Helispot
DU = dwelling unit; AC = acres
a Building/Paving square feet represent area where architectural coating will be applied.
b Up to 10,000 square feet of building space would be provided in the Community Park areas.
c The acreage for the manufactured slopes is also included as part of the analyzed acreage for the residential land uses;
however, this category is specific to the area disturbed that is not being graded specifically for the homes.

According to the Project applicant, the Project site would be segmented into four phases and each
phase would be graded and constructed separately. Although the 1999 EIR analyzed grading of
the Project site within a larger development footprint than is currently proposed and construction
of all but 108 of the proposed dwelling units, this analysis describes all the proposed grading and
construction required by the Project. In addition, in order to provide a worst-case analysis, this
analysis assumes the grading and building construction of the entire Project occurring in one
phase with construction starting Summer 2018 and would be completed by Summer 2024. The
construction equipment utilized in the CalEEMod model for each phase of construction activities
is provided in Table 5.3-10. The Project applicant provided the construction equipment
assumptions for the Site Preparation, Rough Grading, Fine Grading, and Trenching phases of
construction and the Building Construction, Paving, and Painting phases of construction were
based on the CalEEMod default construction equipment parameters. It should be noted that the
Project applicant provided several construction equipment combinations for the various sub-
phases of grading, however this analysis has utilized the sub-phase of grading where the most
equipment would be operating. It should also be noted that the Project would require
approximately 9.1 million cubic yards (mcy) of cut and 9.1 mcy of fill. Additionally, remedial grading
would also require an additional 2.7 mcy of cut and 2.7 mcy of fill. With bulking and shrinkage,
the cut and fill volumes would balance on site, with no import or export of dirt from the Project
site. The emissions created from moving this dirt around the Project site have been accounted for
with the increase in grading equipment analyzed as well as the lengthening of the duration of
grading activities.

R:\Projects\BLC\3BLC000100\Draft EIR\5.3 Air Quality.docx 5.3-21 Section 5.3 Air Quality