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Task 1 . 2 — Conduct Pilot Testing It is assumed that one fabricated pilot unit will be installed at the South WTP and the Cal�Flo unit will be operated and tested at both the North and South WTP ' s . It is assumed that the results of the testing by the Burnett Lime Company for both plants and the results from the fabricated pilot unit at the South WTP can be used to extrapolate the lime and CO2 feed rates for the North Hobart WTP . Consultant will coordinate siting, piping, and electrical needs for the trailer mounted Cal�Flo unit at both facilities . Consultant will provide on- site testing of fabricated pilot unit and provide observations of Cal�Flo operation and testing, which will be conducted by Cal�Flo/Burnett Lime Company representatives . Consultant will conduct testing of fabricated pilot unit water, and adjust feed rates of unit in order to achieve the finish water quality goals outlined in the Stabilization Study . Consultant will utilize IRCU ' s South WTP lab testing equipment for testing of, • Hardness (Ca and total ) • Alkalinity (total) • pH • Turbidity • TDS • Temperature It is assumed that up to two weeks of testing will be conducted once the pilot unit is ready for testing. Consultant will provide up to 5 days of on- site presence during pilot unit operation and conduct testing and adjust pilot unit settings during this phase . The pilot unit operation will not be run continuously . Operation and testing will be conducted only during scheduled times . Consultant will collect data for the pilot units and summarize the field data. Task 1 . 3 — Summarize Results and Prepare Report Consultant will summarize results in tabular form and prepare a letter report outlining the results of the pilot testing. A letter report of our findings will be prepared and is assumed that it will be five to seven pages in length . Graphs used to illustrate findings will be prepared if deemed necessary . Consultant will prepare a draft report for IRCU staff review and attend one meeting, if necessary to discuss findings . Consultant will finalize report and submit up to four copies of letter report . TASK 2 - DESIGN & PREPARATION OF DRAWINGS AND SPECIFICATIONS Task 2 . 1 - Design Consultant will design a lime feed (Ca(OH)2) and storage system, carbon dioxide feed and liquid storage tank, and a make- up water system for the CO2 feed system , for stabilization of the finish water of both the South Oslo Road and the North Hobart water treatment plants . The general design will be similar in terms of process for both facilities . The general operation for both K : AWPB Civil\044572022 - IRCU Stabilization\ScopeAFinish Water Stabilization Scope - IRCU, final . docx Page 2 of