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v <br /> i � - J • i <br /> dvf � � 13o <br /> TASK ORDER NO . 1 <br /> INDIAN RIVER COUNTY <br /> AND <br /> CAROLLO ENGINEERS , A Professional Corporation <br /> This Task Order is issued by the OWNER and accepted by ENGINEER pursuant to the mutual <br /> promises , covenants and conditions contained in the Agreement between the above named <br /> parties dated the 1 st day of May 2007 , in connection with the Continuing Contract Agreement <br /> for Professional Services . <br /> PURPOSE <br /> The purpose of this Task Order is to describe the Scope of Services for the Evaluation Related <br /> to Scaling and Corrosion Considerations at the OWNER 7s Reverse Osmosis ( RO ) treatment <br /> plant. <br /> The overall goal of the study is to perform evaluations and develop suitable recommendations <br /> for the treatment process/operations to address scaling and corrosion considerations . These <br /> evaluations will be achieved through specific data analysis , chemistry modeling , and sampling . <br /> ENGINEER ' S SERVICES <br /> ENGINEER ' s services include the following two tasks to complete this assignment . These tasks <br /> are discussed in detail below. <br /> • Task 1 — Reviews and Evaluation <br /> • Task 2 — Report <br /> TASK 1 . REVIEWS AND EVALUATION <br /> The data reviews and evaluation will focus on specific evaluations of water quality related to <br /> scaling/corrosion , chemistry modeling using RTW model , and specific sampling and analysis for <br /> water quality related to scaling/corrosion . In case a coupon study is one of the <br /> recommendations based on the results from these evaluations , its scope will be separately and <br /> subsequently developed in another task order. <br /> An interim letter memorandum will be prepared and submitted at the end of Subtask 1 . 2 , <br /> summarizing the results of the chemistry modeling , and including initial recommendations on <br /> changes to treatment process/operations . These initial results and recommendations will be <br /> enhanced and finalized in the project report that will be developed in Task 2 , after completion of <br /> the sampling and analysis in Task 1 . 3 . The associated subtasks are listed below . <br /> Subtask 1 . 1 Water Quality Related to Scaling/Corrosion <br /> a . Obtain/compile pertinent data (for last 1 -2 years ) on water quality related to <br /> scaling /corrosion <br /> b . Analyze water quality data related to scaling for last 1 -2 years <br /> c . Analyze water quality data related to corrosion for last 1 -2 years <br /> HAClienAIndian River County\ContracAIRC 2010-T01 _Fn1 .doc 1 <br />