21. Attachment H - Site Visit Attendance Questions and Answers AMD0002.pdf

Attachment H

Site Visit Attendance Questions and Answers AMD0002

89503221BWA000039

24 February 2021

Pre-Bid/Site Visit Attendance Sheet and Q&As

Spence Substation Stage 02 28 January 2021 11:00AM MT

Name Company Phone Email Ed Selby SPS 307-267-7619 eselby@spswyo.com Kyle Shelden Badcc 307-389-0876 kshelden@badccinc.com Jason Walden SPS 307-797-2068 jwaldock@spswyo.com

Question: Is WAPA taking the outage to remove the jumpers on switch, breaker and reactor or is the outage and all jumpers the contractor’s responsibility?

Answer: WAPA is taking the outage to remove the jumpers on the switch, breaker, and reactor.

Question: Is the conduits and wiring to be removed from the generator building to the control room and if so is the wiring de-terminated in the control room if not who takes care of that?

Answer: WAPA personnel will complete removal and re-termination of the wiring in the control room.

Question: Is the gas line between the propane tank and the generator build(ing) to be removed?

Answer: Contractor is to remove gas line between the propane tank and the generator building.

Question: The new piers being installed will they be square or round piers? The existing piers are all square and the prints are calling for rounds.

Answer: New pier foundation tops will be square to match the existing foundations in the substation.

See revised drawings in the updated drawing package attached to this amendment.

Question: Who will be responsible for the re-routing of the service feed from the exiting transformer to the new transformer.

Answer: WAPA personnel will re-route the service feed.

Question: According to the substation electrical there will be no conduits, wire or grounding to be provided by the contractor. Will WAPA be installing the new ground for the new concrete being installed?

Answer: The contractor is responsible for installing grounding to the new concrete foundations. See revised drawings in the updated drawing package attached to this amendment.

Question: Please reference drawing SCE 2305. Vertical reinforcing in the pier elevation is indicated as #8 while the pier plan indicates #7. Please clarify

Answer: See revised drawing SCE 2305 Rev. A in the updated drawing package attached to this amendment.

Question: Please reference drawing SCE 2307. Vertical reinforcing in the pier elevation is indicated as #8 while the pier plan indicates #7. Please clarify. We note that this pier 2SA1 remains in design.

Answer: See revised drawing SCE 2307 Rev. B in the updated drawing package attached to this amendment. Pier 2SA1 will become firm prior to construction when design information becomes available.

Question: Is the volume of demolition generated debris (40 cy per bidding schedule) inclusive of all items noted in note#1 of the bidding schedule?

Answer: Yes.

Question: Please reference drawing SCE 2004. Can WAPA clarify the purpose of the solid cloud – ‘indicates revisions’?

Answer: The solid cloud clarifies locations where new foundations will be required.

Question: Will the existing trench cover require field modification where the new cable trench interfaces with the existing?

Answer: The existing trench cover will require modification. See Note 7 on the revised drawing SCE 2500 Rev. A in the updated drawing package attached to this amendment.

Question: Please confirm if all electrical equipment to be removed and disposed of are assumed to be de-energized or are these energized/live equipment that needs to be disconnected and de-energized prior to removal?

Answer: WAPA personnel will be de-energizing and disconnecting equipment prior to the contractor’s removal.

Question: Please clarify the scope or work required for Cable Trenches reference in the specification under Division 3 - concrete, item B - 2. If additional Cable trenches are required. Please confirm location(s).

Answer: See drawings SCE 2013 Rev. C and SCE 2500 Rev. A for location of new cable trenches.

Question: Can you please provide the sign in sheet with the list of attendance from the site visit?

Answer: See list above.