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EXHIBIT A <br /> City of Prescott <br /> 2012 Water Distribution System Model Update <br /> SCOPE OF WORK <br /> INTRODUCTION <br /> The purpose of this Water Distribution System Model Update is to provide the City of Prescott <br /> (City) with an updated hydraulic model that incorporates the infrastructure additions that have <br /> taken place since the model was last updated, and to update the demand projections that will <br /> form the basis for planning improvements and additions to the water distribution system. <br /> Infrastructure requirements will be identified for new developments so that a capital <br /> improvement program can be developed and documented in a master plan report to guide the <br /> City in making future improvements to the water distribution system. To assist the City in <br /> evaluating ongoing changes and improvements to the water distribution system, model training <br /> will also be provided. <br /> PROJECT ASSUMPTIONS <br /> This scope of services for developing the update is based on the following assumptions: <br /> 1) Information contained in the various layers of GIS data to be provided by the City is the <br /> best information that is available. <br /> 2) Prescott's current customer billing record database will be provided by the City and used <br /> as a basis for the land use demand analysis. <br /> 3) This update will be developed based on the most updated Prescott General Plan. <br /> 4) The 2010 Census data will be used to assess current population estimates. <br /> 5) Prescott will make available any known future development plans. <br /> 6) The project area includes the City of Prescott service area, including service to private <br /> systems, e.g. Highland Pines, Mountain Club, Holiday Hills, etc. tribal lands, and private <br /> lands within the Prescott service area. <br /> TASK 1.0 WATER MODEL UPDATE AND PLANNING FRAMEWORK <br /> 1.1 Land Base Updates <br /> The City is having its service area flown to create an updated set of aerial photographs <br /> and LIDAR data that is expected to be available in the early part of the project. The <br /> photographs and elevation information obtained from this effort will provide background <br /> information to be used to update the model and plan for growth. The City will also <br /> provide updated layers for streets and parcels. Carollo will take this information to use <br /> for updating the model, analyzing the water system, and for presenting <br /> recommendations and results. <br /> h.\bd_phx\prescott\water model update\prescott water model update project 06192012.docx 1 <br />