Questions___Answers_Amd_0001_0001.pdf

Purpose: The purpose of this amendment 0001 is to:

1. Correct the site visit address to; 7794 Folsom Auburn Dam Road, Folsom, CA 95630.

2. Add: “Perform non-destructive test (NDT) die penetrant, to rotating assembly” to paragraph 7.02 A.

3. Answer the following questions:

Q1: Replacement Parts Responsibility: Will the Bureau of Reclamation provide any replacement parts, or is the contractor expected to source and supply all necessary parts and raw materials?

A1: Contractor must provide all replacement parts and raw materials.

Q2: Based on the specification we understand that only the following parts require replacement as part of the base scope are included for each pump 2, 4, 5, and 6

1. Line bearings, thrust bearings, bearing retaining collars and bearing nut

2. Grease seals, water shields, set screws, and spacer collars

3. Case and Cover Gaskets

4. Wear Rings (Case or Impeller Wear Rings or Both?)

A2: Both

Q3: Please confirm that these items are to be reused and are not requested to be replaced?

1. Impellers

2. Pump Case

3. Bearing housings

4. Pump Shaft

A3: Correct all these items are to be reused.

Q4: Please confirm that any repairs required to these parts will be subject to a change / amendment to the contract?

1. Impellers

2. Pump Case

3. Bearing housings

4. Pump Shaft

A4: No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only be authorized via a modification.

Q5: Confirm that this scope will be quoted as a change order on an as needed basis and not included in the base scope.

1. Replace all plumbing piping, valves, and couplings as needed.

2. Check if discharge and intake pressure gauges are working properly. Replace pressure gauges as needed with similar.

A5: No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only

Q6: Confirm that blasting and recoating of any painted surfaces is not included in the scope and will not be performed?

A6: No recoating of painted surfaces is expected.

Q7: Confirm that UT, PT or any other type of NDE Nondestructive examination / inspection is excluded from the scope?

A7: PWS has been updated with requirement. Dye penetrant test will be done on rotating assembly.

Q8: Confirm that balancing is not included in the scope?

A8: Balancing is not included in the scope.

Q9: Please define the quantity of spare parts. Are the “spare parts” the components that Contractor will install during this overhaul in to each pump being rebuilt (pumps 2,4,5,&6) or are the spare parts an extra set that will remain in a warehouse for the USBR to use in the future?

A9: Spare parts are for future use that will remain in a warehouse. Will update PWS with table of spare parts.

Equipment Spare Part Quantity Pump 2 Bearing Inboard 1 Pump 2 Bearing Outboard 1 Pump 2 Wear Ring (Impeller) 2 Pump 2 Wear Ring (Casing) 2 Pump 2 Inboard Seal 1 Pump 3 Bearing Inboard 1 Pump 3 Bearing Outboard 1 Pump 3 Wear Ring (Impeller) 2 Pump 3 Wear Ring (Casing) 2 Pump 3 Inboard Seal 1 Pump 4&5 Bearing Inboard 2 Pump 4&5 Bearing Outboard 2 Pump 4&5 Wear Ring (Impeller) 4 Pump 4&5 Wear Ring (Casing) 4 Pump 4&5 Inboard Seal 2 Pump 6 Bearing Inboard 1 Pump 6 Bearing Outboard 1 Pump 6 Wear Ring (Impeller) 2 Pump 6 Wear Ring (Casing) 2 Pump 6 Inboard Seal 1

Q10: Spare bearings, hardware, and wear rings? For one unit or one complete set for each of the 4 units being overhauled?

A10: One complete set for each of the 4 units being serviced.

Q11: What additional work is the USBR anticipating under this solicitation to be handled as discovery work?

A11: No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only

Q12: Is any welding work to repair cavitation or corrosion damage included in the scope?

A12:No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only

Q13: Would repairing cracks in the case or impeller be considered discovery / change order scope that contractor would quote to the USBR if discovered?

A13: No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only

Q14: If the pump shaft (s) need to be repaired or replaced will that be compensated with a change order?

A14: No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification. Additional work would only

Q15: If geometric or dimensional issues are present on the case such that decking the case halves at the mating flanges and reboring the case becomes necessary will that work be compensated as a change order?

A15: Debur only expected. No, at this time, no scope changes will be confirmed. If Reclamation determines that additional scope is required, that will be determined at a later time via a modification.

Additional work would only be authorized via a modification.

Q16: Worthington OEM Drawings or USBR Pump Drawings: Are there available USBR drawings or manufacturer drawings for the Folsom pumping plant pumps, the pump building, etc.?

A16: We have building drawings that will be available after award. No drawings available for pumps.

Contract scope is for vendor to provide us drawings.

Q17: What are the weights of each pump 2,4,5,&6?

A17: Unknown

Q18: What is the overhaul history of the 4 pumps 2, 4, 5, and 6?

A18: Unknown

Q19: Have any parts been modified?

A19: Unknown. Contractor is expected to measure housing before procuring and installing new bearing.

Q20: Who performed the maintenance and overhaul work or spare parts supply for any work on pumps 2,4,5&6?

A20: Bureau of Reclamation performed maintenance.

Q21: What repairs have been made and to what components?

A21: Bearings failed. No repairs have been made.

Q22: All are components Original and per the OEM drawings?

A22: Needs to be verified by vendor. This is a vendor deliverable task to provide OEM documents drawings including tolerances and parts list.

Q23: What is the reason for each pump 2,4,5 & 6 are requiring service? What known issues exist with each pump?

A23: Bearing failures and need bearing replacements completed by vendor.

Q24: Please explain the USBR history with outboard bearing overheating on pumps 2,4,5&6?

A24: Suspect use of improper grease for application.

All other terms and conditions remain unchanged.