RES 231376 Exhibit A - Addendum and Mitigation Monitoring and Reporting Plan (MMRP)

City of Pleasanton—Stoneridge Mall Residential Project Introduction Section 15183 Checklist/15164 Addendum 6 FirstCarbon Solutions Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480017/Consistency Checklist/21480017 Stoneridge Mall Residential Project Checklist Addendum_Updated.docx (1) Substantial changes are proposed in the project which will require major revisions of the previous EIR or ND due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; 3 (2) Substantial changes occur with respect to the circumstances under which the project is undertaken which will require major revisions of the previous EIR or ND due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; or (3) New information of substantial importance, which was not known and could not have been known with the exercise of reasonable diligence at the time the previous EIR was certified as complete or the ND was adopted shows any of the following: A. The project will have one or more significant effects not discussed in the previous EIR or ND; B. Significant effects previously examined will be substantially more severe than shown in the previous EIR or ND; C. Mitigation measures or alternatives previously found not to be feasible would in fact be feasible, and would substantially reduce one or more significant effects of the project, but the project proponents decline to adopt the mitigation measure or alternative; or D. Mitigation measures or alternatives which are considerably different from those analyzed in the previous EIR or ND would substantially reduce one or more significant effects on the environment, but the project proponents decline to adopt the mitigation measure or alternative (CEQA Guidelines § 15162 ; see also Pub. Resources Code § 21166). This Checklist/Addendum and attached documents addresses the conclusions of the Prior EIR in light of the proposed project and constitutes substantial evidence supporting the conclusion that preparation of a supplemental or subsequent EIR or ND is not required. There are no substantial changes proposed by the Stoneridge Mall Residential Project (proposed project) or under the circumstances in which the proposed project would be undertaken that would require major revisions of the Prior EIR. The proposed revisions do not require preparation of a new subsequent or supplemental EIR due to: (1) the involvement of new significant environmental effects, (2) a substantial increase in the severity of previously identified significant effects, or (3) new information of substantial importance. No mitigation measures or alternatives previously found not to be feasible would in fact be feasible, nor has the project proponent declined to adopt any additional mitigation measures or alternatives that would substantially reduce one or more significant effects on the environment. Applicable mitigation measures from the Prior EIR are identified and discussed in this Checklist/Addendum. 3 CEQA Guidelines Section 15382 defines “significant effect on the environment” as “ . . . a substantial, or potentially substantial adverse change in any of the physical conditions within the area affected by the project, including land, air, water, minerals, flora, fauna, ambient noise, and objects of historic or aesthetic significance . . .” (see also Public Resources Code [PRC] § 21068).