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

reduced through implementation of the mitigation program identified in Section 5.13,
Noise.
 Public Services. Impacts related to fire protection and police protection would be reduced
through implementation of the mitigation program identified in Section 5.15, Public
Services.

 Tribal Cultural Resources. Impacts related to an adverse change in a tribal cultural
resource would be reduced through implementation of the mitigation program identified in
Section 5.18, Tribal Cultural Resources.
 Utilities and Service Systems. Impacts related to water and wastewater systems, and
solid waste would be reduced through implementation of the mitigation program identified
in Section 5.19, Utilities and Service Systems.

7.1.2 SIGNIFICANT ENVIRONMENTAL EFFECTS THAT CANNOT BE AVOIDED IF THE
PROPOSED PROJECT IS IMPLEMENTED

Section 15126.2(b) of the CEQA Guidelines requires that an EIR describe any significant impacts
that cannot be avoided, even with the implementation of feasible mitigation measures. Even with
incorporation of the MMs, the proposed project would result in the following significant and
unavoidable impacts. There are no feasible mitigation measures to reduce these potentially
significant project and cumulative impacts to a less than significant level; therefore adoption of a
Statement of Overriding Considerations is required.

 Aesthetics. The Project would result in a reduction of grading footprint, however the
alterations to the ridgeline as shown in Viewpoints 4, 6, 7, and 8 would continue to result
in significant and unavoidable impacts to the aesthetic/visual character of the Project site.

 Transportation/Traffic. The proposed Project would result in significant and unavoidable
impacts at the following intersections:

o The Old Road and I-5 southbound ramps. Existing With Project (PM peak hour)
and Future Cumulative With Project (AM and PM peak hours)

o The Old Road and Rye Canyon Road. Future Cumulative With Project (PM peak
hour)

o The Old Road and Magic Mountain Parkway. Future Cumulative With Project
(PM peak hour)

o I-5 southbound ramps and Magic Mountain Parkway. Future Cumulative With
Project (AM and PM peak hours).

o Copper Hill Drive and Decoro Drive. Future Cumulative With Project (AM and
PM peak hours)

o Tesoro Del Valle-Rio Norte Drive/Copper Hill Drive. Existing With Project and
Future Cumulative With Project (AM and PM peak hours)
o Rye Canyon Road/Copper Hill Drive and Newhall Ranch Road. Future
Cumulative With Project (PM peak hour).

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