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November 26, 2018 <br />Comment on Environmental Impact Report, 2525 N. Main Street Multi -Family Residential Project <br />(aka Magnolia at the Park) SCH 2018021031, DP No. 2017-34 <br />page 7 <br />analyze the possibility of soil -vapor intrusion — a process by which toxic vapors enter <br />the building constructed on the contaminated soil. DTSC also pointed out that the <br />soil on the Project site is contaminated with arsenic — a known human carcinogen. <br />In both cases, the EIR dismissed DTSC's comments, failed to conduct <br />additional analysis and failed to adopt adequate mitigation measures. This is a <br />patently inadequate response to expert comments from a State Agency. A Revised <br />DEIR is required to analyze these impacts and to respond to DTSC's comments. <br />In response to DTSC's comments, the FEIR merely states that a soil <br />mitigation plan will be developed at a later time. CEQA does not allow such deferral <br />of mitigation. Mitigation measures must be set forth in the EIR, so that the public <br />can analyze the adequacy of the mitigation measures. The EIR fails to comply with <br />this requirement. <br />Feasible mitigation measures for significant environmental effects must be set <br />forth in an EIR for consideration by the lead agency's decision makers and the public <br />before certification of the EIR and approval of a project. The formulation of mitigation <br />measures generally cannot be deferred until after certification of the EIR and <br />approval of a project. Guidelines, section 15126.4(a)(1)(B) states: "Formulation of <br />mitigation measures should not be deferred until some future time. However, <br />measures may specify performance standards which would mitigate the significant <br />effect of the project and which may be accomplished in more than one specified <br />way." "A study conducted after approval of a project will inevitably have a diminished <br />influence on decisionmaking. Even if the study is subject to administrative approval, <br />it is analogous to the sort of post hoc rationalization of agency actions that has been <br />repeatedly condemned in decisions construing CEQA." (Sundstrom v. County of <br />Mendocino (1988) 202 Cal.App.3d 296, 307.) "[R]eliance on tentative plans for future <br />mitigation after completion of the CEQA process significantly undermines CEQA's <br />goals of full disclosure and informed decisionmaking; and[,] consequently, these <br />mitigation plans have been overturned on judicial review as constituting improper <br />deferral of environmental assessment." (Communities for a Better Environment v. <br />City of Richmond (2010) 184 Cal.AppAth 70, 92.) <br />LIUNA is very concerned about the soil contamination identified by DTSC. <br />Construction workers, such as LIUNA members, will be exposed to higher levels of <br />soil and groundwater contamination than anyone else since they will be involved in <br />direct excavation of potentially contaminated soil and groundwater. It is critical to <br />LIUNA that adequate mitigation measures be identified prior to Project construction, <br />not after contaminated soil is discovered. <br />75E-251 <br />WA <br />1.1 <br />