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City ofCenterville CenterviUe DowntownRedevefopment Project December 29,2006 Page 3 Task 4: Air Quaiity and Noise Impact Analyses SBP Associates will complete the air qualityandnoise impact analyses. One meeting is anticipated tobe needed. The noise analysis will include: monitoring at up to three locations in order to assess existing project-area noise levels; modeling using the Minnoise computer model to predict post-project noise levels; and preparation of a report for attachment to the EAW. The report will include a summary of results comparing projected noise analysis results to appropriate standards, a description ofthe analysis process and methodology, noise modeling and monitoring results, and the traffic information used in the analysis. The air quality analysis will consist of dispersion modeling, data analysis and report preparation. Background carbon monoxide monitoring is not included as it is unlikely to be required for this study. SBP will use the CAL3QHC computer model to predict the post-development air quality impact ofthe project-area traffic on nearby receptors. For attachment to the EA W, a report will be prepared that includes a summary of results comparing projected carbon monoxide levels to appropriate standards, a description ofthe analysis process and methodology, carbon monoxide modeling results, and the traffic information used in the analysis. Task 5: Analyze Information in EA W Context and Format, Prepare Draft EA W Once environmental issues have been identified and the relevant information has been collected, analysis of predicted environmental impacts can be completed. This task is designed to predict the proposed project's environmental impacts within the EQB intent and guidance. Information from the supporting studies conducted under Tasks 2-4 (traffic, wetlands, air quality and noise impacts) will be incorporated into the EA W. During this task, the specific questions in the EA W form are responded to, using development plans and other relevant information as the factual basis for analysis and response. All responses will be of a length and type appropriate to there levance of the question, and may include for reference figures, tables, maps, . and/or related correspondence. The completion of this task will include a draft copy of the EA W submitted to the City of Centerville as theRGU for review of its content and accuracy. Task 6: Revise EA W withRGU Review Comments, Prepare and Distribute EA W Copies, Prepare and Submit EA W Notice to EQBand Local Newspaper This task encompasses preparing copies of the EA W (both paper and electronic, if requested) for submittal to the RGU for adoption/approval for publication. This task also includes incorporating comments and responding to questions the RGU may have prior to adopting and releasing the EA W for public comment. It is assumed that approximately 10 copies of the EA W will be needed for City approval. The EA W will be prepared and distributed to the agencies on the EQB EA W Distribution List. The number of copies needed for distribution varies depending on the nature and location of the project, as well as the number of other parties who have expressed interest in the project. In most cases, approximately 35-40 copies are needed. A notice of EA W availability will be submitted to the Environmental QualityBoard (EQB)for publication in the EQB Monitor. A notice will also be submitted to a local newspaper as required by EQB rules.