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INDIAN RIVER COUNTY <br /> NORTI I WTP RAW WA "I,ER TRANSMISSION SYS "I'EM <br /> UPC PROJECT NUMBER 2422 <br /> INDIAN RIVER COUNTY BID NUMBER : 2010024 <br /> ADDENDUM NUMBER 1 <br /> January 13 , 2010 <br /> CLARIFICATIONS : <br /> The non -mandatory pic- bid meeting minutes are attached . <br /> The column pipe described in Specification Section 1 121 1 2 . 02 1 , shall be 8 " Schedule 10 <br /> 316 Stainless <br /> Steel with flanged connections . Each well shill be supplied with 60 feet of column pipe . <br /> Ouestion 1 : We need the existing well casing inside di? mete_r and racing depth for tl.e six <br /> existing <br /> wells , as we need to confirm it will accommodate the specified flanged column pipe and <br /> bowl assembly . <br /> Response 1 : The final casing for all wells has an inside diameter of 14 " . The following table provides <br /> the depth of each well casing . <br /> Well # Depth <br /> 4 385 ' <br /> 5 385 ' <br /> . 6 385 ' <br /> 7 398 ' <br /> 8 383 ' <br /> 9 385 ' <br /> Question 2 : We need to know the existing well casing material and specifications . <br /> Response 2 : The final casing is 16 " SDR 17 PVC Certa- Lok manufactured by Certain Teed <br /> Corporation . The casing conforms to ASTM Specification F480 . <br /> Question 3 : We need the depth of the pumps setting to be specified . <br /> Response 3 : All pumps shall be supplied with 60 feet of column pipe . <br /> Question 4 : is the existing well casing at the required elevation or does it need to be extended ? <br /> Response 4 : The well casings need to be extended so that the centerline of the aboveground discharge <br /> piping is 3 ' above grade . <br />