DL Questions and Answers - Amend 002.pdf

Questions and Answers

Amendment 002 Solicitation 89503420BWA000017 Construct Devils Lake Substation, Stage 06 in North Dakota

Question: For the intermediate deadline on the control house, it states that all interior, HVAC, and Electrical need to be completed by 12/15/2020. Is this stating just the interior finishes, not including the outdoor finishes, correct? Let me know what WAPA has for the intermediate deadline on the control enclosure for the Devils Lake Substation, Stage 06.

Answer: Exterior finishes can be completed after the intermediate date given. The exterior shall be able to hold the elements of climate from penetrating the interior as the contractor is responsible for all interior finishes and components.

Question: The specifications state the contractor is to be finished with DC Power and Control Cable work no later than 4/30/2021. Then the specifications state WAPA will require 90-days after the 4/30/2021 intermediate completion date to commission the substation. Will the contractor be allowed to continue working in the substation while WAPA commissions equipment?

Answer: Contractor can continue to complete other work at the same time. Coordination with onsite crews will be required as some areas the contractor will not be able to utilize while testing is in progress.

Question: When does the existing equipment get moved? If WAPA requires 90-days to commission, then they wouldn’t be completed until about 7/29/2021 with commissioning. Does this mean that the existing equipment is moved after this date but prior to the final completion of the substation sometime in late Sept. of 2021?

Answer: Yes

Question: Who is responsible for offloading the power circuit breakers?

Answer: WAPA will unload these units as they will arrive before contract has been awarded.

Question: Is the contractor responsible for SF6 filling of the Breakers?

Answer: Contractor shall be responsible to complete the installation of the circuit breakers which includes SF6 gas and removal of excess gas filled and empty cylinders from the site.

Question: Is the transformer being installed in the new yard currently in service in the existing yard, or is it being stored in the existing substation?

Answer: New transformer is currently being in existing yard on north end.

Question: Is the contractor responsible for moving the unit from the current location to the new concrete foundation?

Answer: Yes

Question: Is there a manufacturer drawing and manufacturer instruction book on this unit?

Answer: Being issued in Amendment.

Questions and Answers

Amendment 002 Solicitation 89503420BWA000017 Construct Devils Lake Substation, Stage 06 in North Dakota

Question: Is the equipment to be removed and disposed of, is any of this equipment oil filled?

Answer: Yes

Question: If so, are PCB test reports available?

Answer: These pieces of equipment tested at 1 PPM.

Question: Some of the control building subcontractors have asked for a week extension as they are struggling to find HVAC pricing. I have been asked this by (2) of the Control Building subcontractors, they advise me that they may not have pricing together on the HVAC by 7/23/2020. Please let me know if an extension to the bid date is possible.

Answer: Yes

Question: The electric power available for construction purposes, can this be used to temporary power the control building? Or will a temporary feed need to be installed by the local cooperative?

Answer: Electric power will be provided as directed in the specifications.

Question: When is the contractor able to move KW4A to the new location?

Answer: This unit can be moved at any time.

Question: We assume Foundation “P” on Drawing DL 2005 is part of Stage 06 scope. We cannot, however, read the drawing as it’s not legible. Can a clarification be provided on the dimensions, thickness, bar size and spacing of this foundation?

Answer: A new drawing is provided and other drawings that were questionable to read have been provided as well.