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7. Q. Could you please clarify the RO membrane replacements? <br />A. The membranes in the pressure vessels that are to replaced are to be <br />carefully removed, properly stored and reinstalled in the new <br />pressure vessels. The existing membranes are not being replaced. <br />8. Q. The specifications call for GRC conduit. The existing conduit is <br />aluminum. Please advise. <br />A. The specifications will be amended to require aluminum. <br />9. Q. Drawings E-8 calls for 400 amp disconnect to be NEMA 12. The <br />specifications call for NEMA 4X. Please advise. <br />A. Specification section 16950 requires NEMA 4X disconnect switches, <br />except as shown on the drawings. The note on sheet E-8 is correct. <br />10. Q. Who is the manufacturer of the existing Main Switchgear and what is <br />the Model number? <br />A. General Electric—Power Break Model . <br />11. Q. Who is the manufacturer of the existing Post Treatment MCC and what <br />is the Model number? <br />A. Eaton/ Cutler -Hammer -2100 Model. <br />12. Q. Where is the South Repump Station located? <br />A. It is approximately 1000 feet to the south of the RO Process building. <br />ADDITIONAL CHANGES TO CONTRACT DOCUMENTS <br />SECTION 00020—ADVERTISEMENT FORBIDS <br />Amend Section 00020, Paragraph 1, second to last sentence as follows: <br />Deadline for receipt of bids has been set for 2:00 PM on July 23, 2008. <br />SECTION 16110—RACEWAYS <br />Replace Section 16110, Paragraph 2.01(A) with the following: <br />A. Aluminum conduit shall be as manufactured by Allied Tube and Conduit, 6063 alloy <br />aluminum, temper T-1, or approved equal. <br />DRAWING SHEETS <br />Amend TRAIN REPAIR SCHEDULE Table on Drawing Sheet M4 as follows: <br />The total quantity for line item No. 2 should read "192". <br />CADocuments and Settings\mikeh\L.ocal Settings\TempWDDENDUM NO. 1.doc <br />-4. <br />