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EXHIBIT IIAII PUMP STATIONS #15 SCOPE OF SERVICES CITY OF REDWOOD CITY August 23, 2005 BACKGROUND The City is proposing to rehabilitate the existing sewage pump station #15, located at Twin Dolphin Drive. It receives sewage flows fi.-om one upstream pump station, #14, located on Redwood Shores Parkway. The two pumps at Pump Station #15 are at the end of their useful life. Additionally, the pumps need to be standardized to be submersible types to handle pump failures more quickly. The pump station has deteriorated with age and is experiencing an increase in the ftequency of repairs. The existing pump station consists of a separate dry well and wet well. It is proposed to modify the dry well as an extension of the wet well and to rehabilitate the wet well with coating materials. A n¥w valve vault with sump pump is also desired, along with replacement of all valves and discharge piping to the existing force main. The new submersible pumps will have variable frequency drives. SCOPE OF SERVICES This Scope of Services provides for the preparation of design documents for the rehabilitation of the pump station. The following tasks will be performed: Phase A. Project Management This phase provides the overall management the project. The tasks include but are not limited to the following: 1. Providing project coordination; communicating project issues with the City of Redwood City; setting up the project, including developing Nolte's project work plan; preparing a project design schedule as well as monitoring and updating that schedule; tracking and reporting job progress. 2. Perform Quality Control Reviews and Quality Assurance Audits of design. Phase B. Surveying and Existing Utilities This phase provides the surveying and utilities research for the project. The tasks include but are not limited to the following: 1. Research existing utilities from City as-built plans and private utility companies. 2. Perform one day of field surveying to establish inverts of pipes at existing manho les as well as confirm locations relative to significant local features in order to prepare a site plan. The survey will augment and clarify utility information based on City provided as-built plans as well as locate existing structures and trees. If the existing utilities are in question, Nolte can contract for potholing as an optional service. NOLTE ASSOCIATES. INC. 1 0[4 N:\BDSY A\Redwood City (City ot)\Pump Station # I 5\doc\séope_1 5R2.doc