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Attachment 1 Scope of Services Indian River County Department of Utility Services Professional Service Support to Address Comments of the Request for Additional Information #1 dated August 17. 2006 for CUP Application No. 10524 General PBS&J on behalf of Indian River County (IRC) submitted and application to the St. Johns River Water Management District (SJRWMD) for modification of CUP No. 10524 to increase groundwater withdrawals at the Hobart Park (HP) Water Treatment Plant (WTP) . SJRWMD requested additional information including an analysis of the drawdown and water quality changes in the Floridan and surficial aquifers due to proposed withdrawals at the North (HP) and South WTPs plus all existing legal users within five miles of the WTPs . Scope of Work PBS&J will provide professional services to respond to comments from the SJRWMD RAI letter dated August 17, 2006. In response to the questions above PBS&J will be performing work beyond the original scope of work under this assignment. The three main areas where additional work is being performed are : • the construction of groundwater withdrawal model and saltwater intrusion analysis • the addressing of demand projections based on expected population, and • the preparation of a water conservation plan. This additional scope of work outlines these efforts . Certain assumptions have been made in preparing this Scope of Work (SOW). To the extent possible, they are stated herein, and are reflected in the budget for services. If the scope of work required is different than that stated herein, the resultant changes in scope of work would serve as a basis for amending the CSA as agreed to by both IRC and PBS&J. This SOW includes preparing up to two responses to follow-up request for clarification or additional information that the District might request in the future. The tasks for this SOW are : TASK 1 : The Construction Of Groundwater Withdrawal Model And Saltwater Intrusion Analysis TASK 1 - 1 : Geographic Information System Set-up To construct a proper groundwater model that best represents "real world" conditions PBS&J proposes to use Geographic Information System (GIS) based on data from definitive studies within the modeled region. PBS&J proposes to compile available data on aquifer characteristics and existing legal uses into a GIS from the following sources : • US Geological Survey (USGS); • Florida Geological Survey (FGS); • SJRWMD; and • Readily available reports from previous consultants. The GIS will be used in Task 1 -2 and 1 -8. Page 2 of 5