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The current scope for this effort includes completion of Task 1 through Task 3. Services for the <br />selected tasks are described in detail in the following pages. <br />SCOPE OF SERVICES <br />TASK 1.0 — UDF PRE -DESIGN <br />1.1 Data Collection — REI will collect and review geographic information system (GIS) data. <br />including the City's water system GIS shapefiles and valve, hydrant and blow -off <br />shapefiles to design the UDF Program using the City's hydraulic model (Model) and <br />UDF software. <br />Data Required: Latest water system GIS shapefile and latest valve, hydrant shapefile and <br />blow -off shapefile (if available). <br />1.2 Hydraulic Model Update — REI will compare the hydraulic model to the current water <br />system shapefile and import new piping structure into the City's existing Model to ensure <br />new pipes are included in UDF program. REI will use the City's GIS files as the source <br />for the new structure import. REI will convert the City's Model currently in <br />WaterGEMS format to a UDF Model. The UDF Model will be used to design the City's <br />UDF program. REI will perform quality control checks to ensure that the integrity of the <br />Model is not compromised during the Model conversion to a UDF Model. <br />Data Required: Latest WaterGEMS Model <br />Deliverables: <br />♦ Updated WaterGEMS Model <br />♦ UDF Model <br />1.3 GIS Assets to Model Pipe Link Coordination — REI will link the distribution valves and <br />hydrants to the nearest pipe in the UDF Model. This link allows the valves and hydrants <br />to be opened and closed within the UDF Model to control pipe scouring velocity. REI <br />will review the valve and hydrant to pipe links for assets used in the UDF program desigr. <br />to ensure the UDF Model is representative of the valve and hydrant locations in the <br />distribution system based on City maps. REI will also incorporate the blow -off shapefile <br />into the Model to enable UDF design of key 4 -inch mains that do not have hydrants. <br />Data Required: City maps, water service area boundaries and City staff availability <br />Deliverables: <br />♦ UDF Model with linked assets <br />TASK 2.0 — UDF PROGRAM DESIGN <br />2.1 UDF Design Criteria — REI will develop a set of UDF design criteria with input frorr. <br />City staff to ensure the program design is effective for the distribution system. The <br />design criteria will include, but is not limited to, minimum flush velocity, minimum Oust <br />PLANNING • DESIGN • CONSTRUCTION <br />