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SA-2 Pressure Control Station Relocation <br />and Transmission Main Improvements <br />RFP No. 21-127 <br />Tetra Tech will prepare the preliminary transmission main alignment along with the proposed pipe <br />bypass alignment showing the bypass to Walnut Reservoir as well as potential connections to the City's <br />distribution system. <br />Tetra Tech will define the best management practices (BMP) that will mitigate the project's impact on <br />stormwater quality according to the North Orange County permit for NPDES, which is under the <br />jurisdiction of the Santa Ana Regional Water Quality Control Board. Tetra Tech will perform a site <br />assessment, evaluate the existing and proposed hydrologic conditions, and provide recommendations <br />for low impact development best management practices for treatment and capture of discharges on the <br />site. <br />Tetra Tech will also provide the following Envision related services during the Basis of Design phase: <br />Attend up to three (3) project meetings with City via conference call to discuss Envision; <br />Include Envision narrative in the Basis of Design report; <br />Provide input on ISI rating design parameters; and <br />Prepare ISI Envision Version 3 Pre -Assessment Checklist and probable project score. <br />Tetra Tech will prepare a CEQA Initial Study/Mitigated Negative Declaration (IS/MND) for the proposed <br />project. In addition, Tetra Tech has included the budget for an Environmental Impact Report (EIR) as <br />an optional item. The following is a brief description of the scope of work for the IS/MND: <br />Prepare a draft Project description for use in the IS/MND; <br />Prepare an Initial Study (IS) analyzing the environmental impacts associated with Project. The <br />technical studies to be prepared include: air quality; greenhouse gas (GHS) emissions; and noise <br />and vibration. A cultural resources letter report will also be prepared. Technical analysis for other <br />CEQA IS resource issues will be based on previously prepared documents, and information <br />provided by the City. <br />If the IS identifies no potentially significant impacts, then a Negative Declaration will be prepared. If <br />the IS identifies potentially significant impacts that can be reduced to less than significant levels <br />with implementation of mitigation measures (in addition to the Best Management practices), then a <br />MND will be prepared. <br />The Draft IS will be prepared according to CEQA requirements and the State CEQA Guidelines <br />(Section 15063). The most recent CEQA Environmental Checklist Form (Appendix G) will be used. <br />Based upon review comments provided by the City, Tetra Tech will revise the Draft IS and technical <br />reports and prepare the public review draft IS/MND. Tetra Tech will prepare and distribute copies <br />of the public review draft IS/MND to the State Clearinghouse and to the mailing list provided by the <br />City. <br />A Notice of Intent to adopt the IS/MND will be prepared by Tetra Tech per Section 15072 of the <br />CEQA Guidelines, for the City's use in filing with the County Clerk. <br />Following the end of the 30-day public review period, Tetra Tech will prepare written responses to <br />any comments received on the public review draft IS/MND. For this proposal, we have assumed <br />the preparation of responses to a maximum of five individual comments. <br />Tetra Tech will provide a draft Mitigation Monitoring and Report Plan (MMRP) to be incorporated <br />into the final documentation of the IS/MND. <br />TETRA TECH Page 112 <br />