Amend_3_Attach_1_Q-n-A_0003.docx

Amendment 3 – Attachment 1 Questions and Answers

NOTE: All information should be ground-truthed and the NPS does not take responsibility for the accuracy of the drawings.

1. Would the NPS like to storage the old switchgear or any parts from it or would they like us to dispose all parts? Contractor must dispose of all parts from old switchgear off site per (spec section).

2. Does the Park plan to issue any addenda to the Contract Bid Documents? No, the park does not plan to issue any additional drawings, documents, etc.

3. Since work will be performed on federal property, will the Contractor be required to obtain permits from the State and local jurisdictions? No

4. Will editions of Codes and Standards indicated in DSC Workflows be enforced for this project, or will State and local codes be enforced? State and local. Note 26 05 00 page 5, section 1.7.L: "Local codes shall take precedence over the drawings and specifications, except where the Contract Documents are more stringent the Contract Documents shall apply."

5. The title of the project is “Replace Critical *High Voltage*, *Switchgear* in Monument on Liberty Island.” Section 01 11 00 “Summary of Work,” Article 1.2.B states “The project will replace high voltage electrical switchgear. The equipment to be replaced is 480-volt 800-amp capacity. The existing switchgear is outdated.” Section 26 23 00 specifies low-voltage switchgear and Section 26 24 13 specifies a 480-volt, 800-amp switchboard. Does the NPS want to replace the existing equipment with switchgear or a switchboard? Switchgear

6. Solicitation page 1 (line 11) indicates that Contractor must complete project within 75 days after receiving notice to proceed. Section 01 11 00, Article 1.3.A.2.a states that construction will occur no less than 190 days from NTP. Please clarify period of performance indicated on page 1 of the Solicitation. 190 days from NTP as indicated in Section 01 11 00, Article 1.3.A.2.a.

7. Will any drawings be issued as part of the contract bid documents? There are references to drawings in the Solicitation and Project Manual as follows: The only drawing issued by NPS as part of the contracting documents will be Appendix A at the end of 26 24 13. Note that the contractor must provide signed and sealed engineer's electrical drawings as a requirement for this contract.

1. Solicitation 52.236-21 (page 26) provides Contractor instructions for specifications and drawings for construction.

2. In Project Manual, Article 1.1.A “Related Documents” in all Division 26 Sections state “Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections apply to this Section,” however, drawings have not been issued.

8. Section 01 32 33 specifies photo documentation for historic preservation projects.

1. Is photo documentation required for this project? Yes

2. Is this project considered to be an historic preservation project? Yes, insofar as the switchgear supports historic structures.

9. Section 01 35 91 specifies historic preservation treatment procedures. Does the Park anticipate that any of the following procedures will be required for this project?

1. Removal and salvage of historic materials? Not anticipated

2. Removal and reinstallation of historic materials? Not anticipated

10. Section 26 05 13 specifies medium voltage cables for 2001- to 35,000-volt electrical distribution systems. Will this project require the replacement of any medium voltage cables? Replace wiring only as necessary to complete installation of new switchgear per code and manufacturer specs

11. Section 26 05 19 references Section 27 15 00 for cabling used for voice and data circuits, however this section has not been included in the Project Manual. Will any voice and data circuits be required for this project? No

12. Section 26 05 26 specifies grounding and bonding systems and equipment, plus grounding and bonding for underground distribution, ground bonding with lightning protection system, and foundation steel electrodes. Tied to existing ground system in place for existing equipment, install per code and manufacturer specifications, confirm with contractor's engineer.

a. Will this project require any underground distribution work? No

b. Is there an existing lightning protection system? Yes

13. Are new foundation steel electrodes required? No

14. Section 26 05 26, Article 1.4 calls for As-Built data for test wells, ground rods, ground rings, and grounding arrangements and connections for separately derived systems. install per code and manufacturer specifications, confirm with contractor's engineer

a. Will this project require new test wells, ground rods, and ground rings? No

b. Are new grounding electrodes required as specified in Article 2.5.A? install equipment per code and manufactures specs

15. Solicitation, Page 43: Additionally, each Offeror shall have the attached Past Performance Questionnaire completed by their references identified in, and submitted with, the proposal and forwarded directly to the Contract Officer, Scott Rydwell at scott_rydwell@nps.gov.

Where is the PPQ form located? PPQ form attached to this amendment

16. Solicitation, Page 44: “GENERAL REFERENCES: Complete and submit the attached "General References," form.

Where is the General References Form located? General References Form is not applicable

17. Solicitation, Page 44: “SUBCONTRACTING PERCENTAGE WORKSHEET: Complete and submit the attached "Report on Limitation on Subcontracting" form. The form itself requests input of amounts paid; however, for solicitation purposes, input projected amounts based on your proposed pricing and that of your anticipated subcontractors.”

Where is this worksheet located? Worksheet is attached to this amendment

18. Section 26 05 29, Article 1.2.B.1 references Section 26 05 48 Seismic Controls for Electrical Systems.” Section 26 05 48, Article 1.3.B requires action submittals to include design calculations and a design analysis as part of the delegated-design for each seismic-restraint device. Has the Seismic Design Category (SDC) been determined for this project site? No.

19. Will electrical metering need to be provided so that all switchgear (or switchboard) loads can be monitored as required by EPACT 2005 for all federal buildings and by other federal energy standards and NPS policies? No

20. Section 26 05 73 only calls for an overcurrent protective device coordination study. Will this project also require a short circuit and arc flash study? Yes, only for the equipment feed from the switchgear. Study is not required for the entire Monument.

a. Will the coordination study (and short circuit and arc flash studies) be required only for the new switchboard, or for the facility’s entire electrical distribution system? Only for the switchgear

4. Will this project require design drawings done using NPS standard drawing requirements for sheets, symbols, and CADD layering? No

21. Will a new one-line electrical distribution drawing showing the facility’s entire distribution system be required, or just a plan showing the footprint of the replacement equipment? Yes

22. What provisions does NPS allow or disallow for moving equipment to the island? Contractors must barge equipment and supplies to Liberty Island from a barge yard. The island's work dock can be used for barge operations.

23. Who will be responsible for removal from the island and disposal of the demolished existing equipment? The contractor is responsible for removing and disposing of demolished existing equipment, as specified in Contract Line Item No 1 in Section 01 27 00, Article 3.2.A.1.a.

24. Some of the electrical rating information listed on the existing equipment conflicts the ratings given in the solicitation documentation; specifically, the existing Main Breaker section is a Westinghouse switchboard (dated 1986) rated for 208Y/120v; the existing Secondary Breaker section is a Lincoln Electric switchboard (dated 1966), rated at 480/277. We were wondering if it were possible to obtain any engineering documents from the installation of these two sections, or to at least have someone review them and clear up that discrepancy? No documents are available from 1986, that is why the equipment is being replaced. Contractor is responsible for ground-truthing information needed.

25. Section 26 05 00 Art. 3.5 refers to installation of new concrete bases to accommodate equipment; will this be part of this project, or is the new equipment to be designed to fit onto the existing concrete base? Equipment should be designed to fit on the existing concrete base.

26. Multiple sections which deal with installation of electrical service equipment and cables refer to NETA testing and infrared scans to be performed by a qualified independent testing agency; will this be required for this project, and if so, who is responsible for retaining this agency and submitting its report? Yes, Inferred scan is required 3 months after installation is complete and equipment has been in use. All testing and reports are contractor's responsibility. Reports should be submitted to the CO.

27. The last page of the solicitation document (pg 243) depicts an illustration of the proposed new switchgear/switchboards; the "Elevation View" lists the proposed new breakers in amounts according to their size.

a. It lists (1)800A Main, with Secondaries of (2)400A, (3)200A, (3)100A, and (2)60A breakers.

b. The existing equipment is (1)800A Main, with Secondaries of (2)400A, (3)200A, (1)100A, and (2)60A. This leaves us with (2) unused 100A breakers.

c. The existing Main Breaker switchboard has a breaker enclosure mounted to the side of it, marked "New Service to Tent"; this breaker is rated 150 Amps, and at the time of our site visit, was in the "OFF" position. Is the wiring associated with this breaker to be connected to the new switchgear/switchboard? If so, will it be connected to one of the unused 100 Amp breakers, or will it require an additional 150 Amp breaker? If it is to be connected to one of the 100 Amp breakers, will the reduced available current be sufficient to serve the "New Service to Tent" The two 100 amp breakers are for the future. The breaker enclosure is no longer being used and does not need to be hooked up to the new switchgear.