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Mr. Todd Blomstrom Date: June 1, 2020 Page: 2 Task 2—Alternatives Analysis • Evaluate the existing condition and remaining service life for existing station components • Evaluate the existing elevation of the wet well in relation to the invert and rim elevation of upstream sewer manholes MH 10-001 through MH 10-005 • Develop a summary of the scope and opinion of probable cost for the following three alternatives: 1. Rehabilitation of the existing lift station, including replacement of pumps, control panel, check valves, air release valves,backup floats,transducer, and hatch. 2. Replacement of the existing submersible station with a similar type of station 3. Installation of a grinder type station and new small diameter forcemain • Conduct one(1)meeting with City staff on-site to review the results of the alternatives analysis • Complete preliminary design summary with alternatives analysis Task 3—Final Design/Bidding Phase • Prepare final plans and specifications • Design review meetings with City staff • Construction cost estimates • Assist with State and local agency reviews and permitting (We do not anticipate any permits are required from the MPCA or the MCES since this is an existing lift station and the flow is not increasing) • Bidding services Task 4—Construction Phase • Construction administration • Construction observation • Construction staking • Start-up services • Record drawings Task 5—Additional Surveying for Trail Section • Topo survey for trail section from Norma Ave. to Floral Park We propose to complete the above design and construction phase services for Tasks 1 —4 for a total estimated fee of$49,400. If the City decides to not replace the entire wet well structure and instead just replace pumps,piping,valves, and control panel,then this would result in a reduction in fees of$4,900 for a total of$44,500 for Tasks 1 —4. The work for Task 5, is estimated at$4,665. A detailed hour breakdown by task is included at the end of this letter. Because the engineer has no direct control over the scheduling or operations of the project contractor, construction phase services described in this proposal are estimated based on similar projects and are proposed to be provided on an hourly basis at the rates noted. We do not expect there to be any permit fees required for this project since this is an existing lift station. However, should any permits be required, Bolton&Menk will assist the City in the application process and the permit application fees shall be the responsibility of the City. We would be able to start immediately on this project with the preliminary design phase work. We would anticipate a late summer or fall bid. Depending on delivery of pumps and controls, the construction may start in Fall 2020 or Spring 2021. N:\Proposals\Arden Hills\Lift Station 10\LS 10 Scope and Fee letter revised.docx Bolton&Menk is an equal opportunity employer.