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PROPOSAL FOR On -Call Environmental Services RFP NO.: 21-105 construction activity, type of equipment to be used, equipment operational time, and the expected levels of equipment noise and vibration. Operation noise impact evaluations consider noise generating operation activities, including those associated with increases in traffic. The calculations are used to evaluate noise and vibration levels for any identified sensitive receptors at their specific locations. Tetra Tech also evaluates the noise impacts from the proposed project in accordance with the local (and applicable) noise ordinance. Utility Studies/Sewer Studies/Water Supply Assessment. Tetra Tech has supported various cities and water agencies throughout Orange County on Utility/Sewer Studies and Water Supply Assessments including Santa Ana, Huntington Beach, Orange, Anaheim, Tustin, Newport Beach, Mesa Water District, South Orange County Wastewater Authority, Irvine Ranch Water District, and Moulton Niguel Water District. These services include the preparation of Water and Wastewater Master Plans and studies/analyses in support of infrastructure design projects. Transportation. One of the primary ways a project causes impacts is through additional vehicular traffic during the construction phase or during the operation phase (after construction). Therefore, the various project components, such as parking supply, vehicular access, and project operation activities are all important. Tetra Tech can tailor a transportation technical study to the proposed project, considering both its construction requirements and anticipated operational activities in the context of its proposed location. On -call Staff Consulting Tetra Tech can provide the on -call specialized expertise and the depth of resources necessary to support the City in quickly resolving environmental and technical issues and challenges. Draft Environmental Document Level of Documentation. If the screencheck draft IS identifies no potentially significant impacts, then a Public Draft ND will be released to the public. If the screencheck draft IS identifies potentially significant impacts that can be reduced to less than significant levels with implementation of mitigation measures (in addition to the Best Management Practices), then a Public Draft MND will be released to the public. Should the IS identify potentially significant impacts that cannot be fully reduced to less than significant levels through the implementation of mitigation measures, or should the City reject the acceptance of any mitigation measures, then significant residual impacts will occur and preparation of an EIR will be necessary. Notices: Tetra Tech will prepare, as appropriate, the notices for the ND, MND, or EIR. A Notice of Intent and a Notice of Completion (NOC) will be prepared for the Public Draft ND or MND. After the Final ND or MND has been certified by the Lead Agency, a Notice of Determination (NOD) will be prepared. Prior to the preparation of the Draft EIR, a Notice of Preparation will be prepared to serve as a scoping document for the project. When the Public Draft EIR is ready for publication, a Notice of Availability (NOA) and a NOC will be prepared. A NOA and a NOC will also be prepared for the Public Final EIR, when that document if ready for publication. After the Final EIR has been certified by the Lead Agency, a NOD will be prepared. Mitigation Monitoring and Reporting Program _When mitigation measures are required, the Final IS/MND or EIR will contain a Mitigation, Monitoring, and Reporting Program as an appendix that will be revised with each version of the document. Document and Notice Production and Circulation: Tetra Tech will support the City in developing a mailing list for circulation of the public document. Tetra Tech has full in-house capabilities to produce the large number of documents potentially required to circulate the Public Draft documents, including the ability to produce large quantities of compact discs. Tetra Tech can provide full support in noticing for a public City of Santa Ana 18 TETRA TECH