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r <br /> a. Type and quantity of odors generated at the site and force main discharge. <br /> b. Odor control strategies appropriate for the station and force main <br /> configuration. <br /> c. Requirements, including size and type of odor control equipment, and <br /> compatibility with the City's current design standards and equipment. <br /> The existing station site is currently equipped with a bioxide injection system that is <br /> used for odor control in downstream trunk sewers and at the treatment plant. The <br /> City desires to continue utilizing that system. MSA shall coordinate with the City to <br /> evaluate the suitability of reusing existing equipment versus installing new <br /> equipment. <br /> 8. Noise Abatement Considerations—Evaluate the need for noise abatement to reduce <br /> mechanical noise generated at the lift station site. This will include considerations for <br /> noise generated byday to day operation of the lift station and the standby power <br /> systems. The evaluation will include: <br /> a. Estimating the type and level of noise generated at the site by equipment <br /> taking into account the lift station configuration. <br /> b. Defining requirements for noise levels based on the location of the lift station <br /> site and maintaining a safe working environment and complying with <br /> applicable ordinances and laws that regulate noise limits. <br /> c. Strategies for reducing noise at the lift station site based on the station <br /> configuration and location and equipment selection/specifications. <br /> 9. Force Main Evaluation - Consider the sizing of the existing force main and the <br /> efficacy of continuing its use with the new lift station capacity and associated pump <br /> head conditions. <br /> 10. Interim Lift Station Operation Requirements - Consider the impact of constructing the <br /> new lift station on the operation of the existing lift station. Identify by-pass pumping <br /> needs, flow diversions, and/or disruptions to the operation of the existing station <br /> during construction to accommodate the new lift station. <br /> 11. Identification of Relevant Codes - Identify the relevant codes that will apply to the <br /> project including the NFPA classifications and requirements. Discuss generally how <br /> the codes will be complied with. <br /> 12. Permits and Approvals - Identify the permits and approvals that are anticipated to be <br /> required for the project. Summarize the permit and approval requirements and <br /> timelines. <br /> 35 <br /> City of Everett MURRAY,SMITH&ASSOCIATES,INC. LS 24 Predesign <br /> August 2007 Engineers/Planners 9 <br /> F:\BD\Clients\Everett,WAU.ift Station No.24\Pre-Design\Scope of Work Revised 8-6-07.doc <br />